Abrégé

Disclosed is a ship boil-off gas reliquefaction system. The ship boil-off gas reliquefaction system according to the present invention may comprise: a compression part which compresses boil-off gas in multiple stages, comprising a first compressor that receives and compresses boil-off gas generated from liquefied gas in a cargo tank provided on a ship and a second compressor that further compresses the boil-off gas compressed in the first compressor; an intercooler which receives and cools the boil-off gas compressed in the first compressor, and then supplies same to the second compressor; a condenser which cools the boil-off gas compressed through the compression part; a reliquefied gas recovery line which transfers, to the cargo tank, liquefied gas that has been cooled and condensed in the condenser after cold heat recovery through the intercooler; and a first temperature control line that branches off the liquefied gas from the reliquefied gas recovery line and sprays same onto the top of the intercooler.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 2/14 - Chauffage; Réfrigération des soutes à cargaison liquide
• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
• F25J 1/02 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux nécessitant l'emploi d'une réfrigération, p.ex. de l'hélium, de l'hydrogène

Abrégé

222222 is mineralized and discharged overboard and the corrosion of a separator (152) due to seawater is minimized.

Classes IPC  ?

• F01N 3/04 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de liquides
• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opération; Commande spécialement adaptés à la conversion catalytique
• B01D 53/14 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
• B01D 21/02 - Bacs de décantation
• B63J 2/12 - Chauffage; Réfrigération
• B63B 13/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT Équipement automatique pour l'assèchement; Dalots
• B63H 21/32 - Aménagements relatifs aux conduits d'échappement pour appareils de propulsion; Cheminées propres aux navires

Abrégé

222222; an absorbent liquid regeneration unit (140) that regenerates the absorbent liquid by reacting the carbonate aqueous solution with a divalent metal oxide or a divalent metal hydroxide and generates precipitates; and an onboard storage unit (150) that separates, dries, atomizes, and stores the precipitates within the ship.

Classes IPC  ?

• F01N 3/04 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de liquides
• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opération; Commande spécialement adaptés à la conversion catalytique
• B01D 53/14 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
• B01D 21/02 - Bacs de décantation
• B63J 2/12 - Chauffage; Réfrigération
• B63B 13/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT Équipement automatique pour l'assèchement; Dalots
• B63H 21/32 - Aménagements relatifs aux conduits d'échappement pour appareils de propulsion; Cheminées propres aux navires

Abrégé

A nitrogen pressurization system for leak testing of gas pipes for an engine according to the present invention comprises: a nitrogen generator (100) that is installed on a hull (S) and generates nitrogen; a nitrogen storage tank (200) for storing the nitrogen generated by the nitrogen generator (100); an air compressor (300) that generates compressed air to assist in the starting of an engine (E) for propelling the hull (S) and supplies the compressed air to the engine (E); an air supply unit (400) for supplying air to the air compressor (300); and a first switching valve (DV1) which is installed on a first switching pipe (DL1) connecting the air supply unit (400), the nitrogen storage tank (200), and the air compressor (300), and is controlled to supply air or nitrogen to the air compressor (300). When nitrogen is supplied to the air compressor (300) by controlling the first switching valve (DV1), a gas pipe (GL) connected to the engine (E) is purged using compressed nitrogen pressurized by the air compressor (300).

Classes IPC  ?

• G01M 3/22 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des révélateurs particuliers, p.ex. teinture, produits fluorescents, produits radioactifs pour soupapes
• G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p.ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes
• F17C 7/00 - Procédés ou appareils pour vider les gaz liquéfiés, solidifiés ou comprimés contenus dans des récipients sous pression, non couverts par une autre sous-classe
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 11/00 - Subdivision intérieure des coques

Abrégé

Disclosed is a ship boil-off gas reliquefaction system. The ship boil-off gas reliquefaction system according to the present invention is characterized by comprising: a cargo tank that is provided in a ship and stores liquefied gas; a gas reliquefaction line by which boil-off gas generated from the liquefied gas is discharged from the cargo tank and reliquefied; a compression unit which is provided in the gas reliquefaction line, receives the boil-off gas, and compresses same; and a condenser which is provided in the gas reliquefaction line and cools the boil-off gas compressed through the compression unit. The compression unit includes a first compressor that receives the boil-off gas and compresses same and a second compressor that additionally compresses the boil-off gas compressed in the first compressor and supplies same to the condenser. Each of the first compressor and the second compressor is a centrifugal compressor.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux

Abrégé

Disclosed is an exhaust gas waste heat recovery system of a ship. The exhaust gas waste heat recovery system of a ship, of the present invention, comprises: a heat medium circulation line which is provided on the ship and through which a working fluid circulates; a vaporizer which is provided in the heat medium circulation line and in which the working fluid is vaporized through heat exchange with the exhaust gas discharged from the engine of the ship; and an expansion turbine which is provided in the heat medium circulation line and produces shaft power while receiving and expanding the working fluid, wherein the engine the engine receives a low flash point liquefied gas as a fuel, and the working fluid circulates in the heat medium circulation line of a closed loop while making a phase change from liquid to gas using as a heat source the exhaust gas discharged from the engine by using the low flash point liquefied gas as a fuel.

Classes IPC  ?

• B63J 3/02 - Entraînement des auxiliaires par l'ensemble moteur de propulsion
• B63J 2/12 - Chauffage; Réfrigération
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F01K 23/10 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle le fluide à la sortie de l'un des cycles chauffant le fluide dans un autre cycle
• F01K 11/02 - Ensembles fonctionnels de machines à vapeur caractérisés par des machines motrices faisant corps avec les chaudières ou les condenseurs les machines motrices étant des turbines
• F01K 9/02 - Aménagements ou modifications des pompes à condensats ou à air
• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur
• F02G 5/02 - Utilisation de la chaleur perdue dans les gaz d'échappement
• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleurs; Ensembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p.ex. ammoniac, gaz carbonique, éther

Abrégé

Disclosed are a ship boil-off gas reliquefaction system and method. The ship boil-off gas reliquefaction system according to the present invention is characterized by comprising: a storage tank that is provided in a ship and stores liquefied gas; a compressor for compressing boil-off gas generated from the liquefied gas; a reliquefaction device for cooling the compressed gas, compressed in the compressor, through heat exchange with a refrigerant circulating in a refrigerant circulation unit, thereby reliquefying the compressed gas; and a reliquefaction capacity controller for controlling the reliquefaction capacity of the reliquefaction device. When a pressure value sensed in a vapor head, through which the boil-off gas is discharged from the storage tank, is lower than a set low-pressure value, the reliquefaction capacity of the reliquefaction device is reduced by the reliquefaction capacity controller to maintain the pressure in the storage tank.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/02 - Adaptations spéciales des dispositifs indicateurs, de mesure ou de contrôle

Abrégé

222 is supplied.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

A boil-off gas reliquefaction system and method for a ship are disclosed. The boil-off gas reliqufaction system for a ship, according to the present invention, comprises: a compressor which compresses boil-off gas generated from liquefied gas stored in an inboard storage tank; a reliquefaction line which is connected from the compressor to the storage tank, reliquefies the boil-off gas, and returns the reliquefied gas to the storage tank; a heat exchanger which is provided in the reliquefactin line and cools the boil-off gas compressed by the compressor; a separator which is provided in the reliquefaction line, subjects the boil-off gas cooled via the heat exchanger to a gas-liquid separation, and supplies the liquefied gas to the storage tank; a nitrogen blanket line which supplies nitrogen to the top of the separator; and a bypass line which is branched at the rear end of the heat exchanger from the reliquefaction line and is connected to the storage tank while bypassing the separator.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/04 - Disposition ou montage des soupapes

Abrégé

Disclosed is a leakage detection system of a reliquefaction system for a ship. The leakage detection system of a reliquefaction system for a ship according to the present invention is characterized by comprising: a gas supply line through which evaporation gas generated from liquefied gas stored in a storage tank of the ship is supplied to a compressor; a reliquefaction line through which compression gas compressed in the compressor is cooled and reliquefied via a heat exchanger and returned to the storage tank; a refrigerant circulation line through which a refrigerant exchanging heat with the compression gas in the heat exchanger is circulated; a refrigerant compressor which is provided in the refrigerant circulation line, and compresses the refrigerant that is discharged after cooling the compression gas in the heat exchanger; a refrigerant expander for expanding and cooling the refrigerant, compressed in the refrigerant compressor and then cooled via the heat exchanger, and supplying same to the refrigerant of the heat exchanger; and a refrigerant charge line which is connected from an inventory tank filled with nitrogen to a point upstream of the refrigerant compressor along the refrigerant circulation line. During initial operation of the reliquefaction process or when re-starting the process after stopping same, nitrogen is supplied to a point upstream of the refrigerant compressor via the refrigerant charge line to check for leaks in the refrigerant circulation line.

Classes IPC  ?

• B63B 79/30 - Surveillance des caractéristiques ou des paramètres de fonctionnement des navires en opération pour le diagnostic, les essais ou la prévision de l’intégrité ou des performances des navires
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• G01M 3/04 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite

Abrégé

22) purging is performed.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients
• F17C 13/04 - Disposition ou montage des soupapes
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

Disclosed is a micro-leak detection system of a reliquefaction system for a ship. The micro-leak detection system of a reliquefaction system for a ship according to the present invention comprises: a reliquefaction system which collects cold heat from evaporation gas, generated from liquefied gas stored in a storage tank of the ship, in a heat exchanger and then compresses the evaporation gas, and reliquefies the evaporation gas by making the evaporation gas exchange heat in the heat exchanger with a refrigerant circulating in a refrigerant circulation line; a heater for heating the evaporation gas, which is to be supplied from the storage tank to the heat exchanger, through heat-exchange with an antifreeze; and a micro-leak detection device which is connected to a drain water outlet for discharging drain water from the heater and checks for micro-leaks in the heater.

Classes IPC  ?

• B63B 79/10 - Surveillance des caractéristiques ou des paramètres de fonctionnement des navires en opération utilisant des capteurs, p.ex. des capteurs de pression, des jauges de contrainte ou des accéléromètres
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 2/12 - Chauffage; Réfrigération

Abrégé

22222 is supplied from the buffer tank to the refrigerant circulation line through the first load-up line by a differential pressure between the refrigerant circulation line and the buffer tank, and thereby the refrigerant is charged.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63B 17/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT - Éléments, détails ou accessoires de navires, non prévus ailleurs
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés

Abrégé

A system and method for treating the boil-off gas of a vessel are disclosed. A system for treating the boil-off gas of a ship of the present invention comprises: a first compressor which receives and compresses boil-off gas generated from liquefied gas stored in a storage tank of a ship; a second compressor which receives and compresses the boil-off gas from the storage tank; a heat exchanger in which the boil-off gas compressed in the first compressor or the second compressor is cooled; and a refrigerant circulation line through which the refrigerant supplied to the heat exchanger circulates, wherein the first compressor is a multi-stage compressor which compresses the boil-off gas to a fuel supply pressure of an onboard propulsion engine through a plurality of compressors, the second compressor compresses the boil-off gas to a fuel supply pressure of a power generation engine that is supplied with fuel at a lower pressure than that of the propulsion engine, and the boil-off gas compressed through some stages of the first compressor may be supplied to the heat exchanger to be cooled or supplied to the power generation engine.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 17/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT - Éléments, détails ou accessoires de navires, non prévus ailleurs
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• F02M 25/08 - Appareils spécifiques conjugués aux moteurs pour ajouter des substances non combustibles ou de petites quantités de combustible secondaire, à l’air comburant, au combustible principal ou au mélange air-combustible ajoutant des vapeurs combustibles aspirées des réservoirs de combustible du moteur

Produits et services

Metallic containers for the storage of liquefied natural gas for ships transporting liquefied natural gas; metallic containers for the storage of liquefied natural gas; metallic containers for gas storage; metallic tanks for gas storage; metallic containers for compressed gas; metallic container for the storage of liquefied gas; metallic fuel tanks; metallic storage tanks; metallic packaging containers; metallic containers for use in the storage and/or transportation; metallic containers for the storage of compressed gas or liquefied air; metallic containers for the storage of liquefied fuel; metallic cargo containers for ships transporting liquefied natural gas; membrane type metallic containers for the storage of liquefied gas for ships transporting liquefied natural gas Vessels, in the nature of boats and ships, except air-cushion type; barges; container ships; oil tankers being ships; water transport vehicles; structural parts and fittings of shipping vessels; ice breakers being ships; ships for use in oil or ore drilling; ships for transporting oil; ships for transporting liquefied natural gas; barges mounted with LNG regasification unit; barges mounted with LNG transfer unit for land; barges mounted with LNG production, storage, loading and unloading unit; barges mounted with fuel gas storage and regasification unit; ships for use in transporting liquefied ethane gas; ships for use in transporting liquefied gas

Produits et services

Metallic containers for the storage of liquefied natural gas for ships transporting liquefied natural gas; metallic containers for the storage of liquefied natural gas; metallic containers for gas storage; metallic tanks for gas storage; metallic containers for compressed gas; metallic container for the storage of liquefied gas; metallic fuel tanks; metallic storage tanks; metallic packaging containers; metallic containers for use in the storage and/or transportation; metallic containers for the storage of compressed gas or liquefied air; metallic containers for the storage of liquefied fuel; metallic cargo containers for ships transporting liquefied natural gas; membrane type metallic containers for the storage of liquefied gas for ships transporting liquefied natural gas Vessels, in the nature of boats and ships, except air-cushion type; barges; container ships; oil tankers being ships; water transport vehicles; structural parts and fittings of shipping vessels; ice breakers being ships; ships for use in oil or ore drilling; ships for transporting oil; ships for transporting liquefied natural gas; barges mounted with LNG regasification unit; barges mounted with LNG transfer unit for land; barges mounted with LNG production, storage, loading and unloading unit; barges mounted with fuel gas storage and regasification unit; ships for use in transporting liquefied ethane gas; ships for use in transporting liquefied gas

Abrégé

Disclosed are a system and method for reliquefaction of a boil-off gas of a ship and a system and method for treating an offgas of a reliquefaction apparatus. The system for reliquefaction of a boil-off gas of a ship, of the present invention, comprises: a compressor which compresses the boil-off gas generated from the liquefied gas stored in a storage tank provided on a ship; a heat exchanger in which the compressed gas compressed in the compressor is cooled; a refrigerant circulation line through which the refrigerant supplied to the heat exchanger circulates; a warming line which is connected from the storage tank to the compressor; and a heater which is provided in the warming line, wherein, in the heater, the boil-off gas is heated to an appropriate input temperature of the compressor.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 2/12 - Chauffage; Réfrigération
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
• B63J 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe

Abrégé

A system and a method for reliquefying boil-off gas of a vessel are disclosed. The system for reliquefying boil-off gas of a vessel of the present invention comprises: a compressor provided on the vessel and compressing boil-off gas generated from a storage tank in which liquefied gas is stored; a reliquefaction line, connected from the compressor to the storage tank, for reliquefying the compressed gas and transferring same to the storage tank; a heat exchanger provided on the reliquefaction line and receiving and cooling the compressed gas; a first refrigerant compression unit for compressing a refrigerant which is discharged after cooling the compressed gas in the heat exchanger; a second refrigerant compression unit for additionally compressing the refrigerant compressed in the first refrigerant compression unit; and a refrigerant expansion unit which expands and cools the refrigerant compressed through the first and second refrigerant compression units and supplies same to the heat exchanger, wherein the refrigerant compressed through the first and second refrigerant compression units is pre-cooled in the heat exchanger, and expansion-cooled in the refrigerant expansion unit and supplied to the heat exchanger as a cooling heat source, and the first refrigerant compression unit or the second refrigerant compression unit is driven by the expansion energy of the refrigerant transferred from the refrigerant expansion unit.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 17/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT - Éléments, détails ou accessoires de navires, non prévus ailleurs
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

The present invention relates to an exhaust gas purification apparatus for a vessel which can minimize exposure of the vessel and crew members to the risk of ammonia gas used to capture carbon dioxide contained in exhaust gas generated from the vessel, and regenerate ammonia water to be recycled to capture carbon dioxide, so as to satisfy IMO exhaust gas emission regulations, and to an exhaust gas purification method for a vessel using same. In addition, the present invention relates to an exhaust gas purification apparatus (1000) for a vessel which captures carbon dioxide and sulfur dioxide contained in exhaust gas generated from a vessel by using a reaction solution, converts the carbon dioxide and sulfur dioxide into substances that do not affect the environment, stores same, and then transports same onshore, and to an exhaust gas purification method using same.

Classes IPC  ?

• F01N 3/04 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de liquides
• B01D 53/14 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
• F01N 13/00 - Silencieux ou dispositifs d'échappement caractérisés par les aspects de structure

Abrégé

The present invention relates to a power-saving type boil-off gas processing system for a ship, wherein in processing boil-off gas generated by natural vaporization of liquefied gas in a ship using liquefied gas as a fuel, the power consumption of a re-liquefying system can be reduced, and to a method for processing boil-off gas of such a liquefied-gas-fuel ship. The power-saving type liquefied-gas-fuel ship according to the present invention comprises: a liquefied gas storage tank for storing liquefied gas; an engine that uses as fuel the liquefied gas stored in the liquefied gas storage tank or the boil-off gas generated by natural vaporization of the liquefied gas; a fuel supply means for supplying the liquefied gas as the fuel of the engine; a compressor for compressing the boil-off gas to a pressure required by the engine; a heat exchanger for cooling the remaining boil-off gas that is not supplied to the engine from the boil-off gas compressed in the compressor; a refrigerant circulation line through which the refrigerant supplied to the heat exchanger circulates; a refrigerant compression unit provided in the refrigerant circulation line to compress the refrigerant discharged after being heat-exchanged in the heat exchanger; and a cold heat recovery device for recovering the cold heat of the liquefied gas supplied as the fuel of the engine and cooling the refrigerant compressed by the refrigerant compression unit.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63B 17/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT - Éléments, détails ou accessoires de navires, non prévus ailleurs
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux

Abrégé

A refrigerant cycle pressure control system for a reliquefaction system for a ship is disclosed. A refrigerant cycle pressure control system for a reliquefaction system for a ship, of the present invention, comprises: a heat exchanger provided in the reliquefaction system of a ship and receives boil-off gas from a storage tank to cool same; a refrigerant cycle including a refrigerant circulation line through which the refrigerant for cooling the boil-off gas in the heat exchanger circulates, a refrigerant compressor which is provided in the refrigerant circulation line and compresses the refrigerant which cools the boil-off gas in the heat exchanger and is discharged therefrom, and an expander which expands and cools the refrigerant cooled through the heat exchanger after being compressed by the refrigerant compressor, and supplies same as the refrigerant of the heat exchanger; an inventory tank for storing the refrigerant to be filled in the refrigerant cycle; a refrigerant supply line which is connected from the inventory tank to the front end of the refrigerant compressor to replenish the refrigerant in the refrigerant cycle; a refrigerant discharge line which is connected to the inventory tank from the rear end of the refrigerant compressor to discharge the refrigerant of the refrigerant cycle to the inventory tank; and a pressure control line which branches from the refrigerant discharge line, wherein the refrigerant cycle can be reduced in pressure by discharging the refrigerant of the refrigerant cycle through the refrigerant discharge line or the pressure control line.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 2/12 - Chauffage; Réfrigération
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux

Abrégé

The present invention relates to a method and a system for re-gasifying liquefied gas of a ship, the method and the system maintaining a constant operating condition at a main point of a cycle, in which a heat transfer medium exchanging heat with liquefied gas circulates, so as to enable the cycle to be stably operated, in order to re-gasify the liquefied gas. The method for re-gasifying liquefied gas of a ship, according to the present invention, comprises: vaporizing, in a first heat exchanger, a liquid first heat transfer medium condensed by means of a heat exchanger in a vaporizer; generating power by supplying the vaporized first heat transfer medium to an expansion-power generator and expanding same; and supplying the expanded first heat transfer medium to the vaporizer, wherein the pressure of the front or rear end of the expansion-power generator is controlled to control the pressure of the rear end of the vaporizer.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 3/04 - Entraînement des auxiliaires par l'ensemble moteur autre que celui de la propulsion
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression

Abrégé

The present invention relates to a scaffold structure provided on the inner wall surface of a cargo tank in order to construct an inner insulating layer of the cargo tank, the structure comprising: a plurality of standard modules, which are enlarged in a modular form in the inner space of the cargo tank, and have an upper or lower portion to which a plurality of pillars are coupled so as to form a plurality of floors; and a plurality of cantilever modules, which are enlarged in a modular form so as to be coupled to one side of each of the plurality of standard modules, and thus are adjacent to the inner wall surface of the cargo tank.

Classes IPC  ?

• B63C 5/02 - Appontements; Echafaudages; Accores ou étançons
• B63B 73/60 - Construction ou assemblage de navires ou de structures marines, p.ex. coques ou plateformes en pleine mer caractérisés par l’automatisation, p.ex. l’utilisation de robots
• B63B 73/20 - Construction ou assemblage de modules de navires préfabriqués ou de pièces autres que les sous-ensembles de coque, p.ex. de salles des moteurs, de gouvernails, d'hélices, de superstructures, de couchettes, de casiers ou de soutes
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• E04G 1/36 - Echafaudages pour des parties particulières des bâtiments ou des bâtiments de formes particulières, p.ex. pour des escaliers, des coupoles, des dômes
• E04G 5/04 - Moyens pour fixer, maintenir, ancrer les échafaudages sur ou contre les bâtiments
• E04G 5/08 - Planches ou madriers d'échafaudages

Abrégé

A fuel supply system and a fuel supply method for a liquefied gas carrier are disclosed. The fuel supply system for a liquefied gas carrier, according to the present invention, comprises: a fuel supply line for supplying liquefied gas from a fuel supply tank provided at the deck of the carrier to an inboard engine; a delivery pump provided in the fuel supply line to deliver liquefied gas to be supplied from the fuel supply tank to the engine; a compression pump provided in the fuel supply line to compress the liquefied gas at a pressure required for the engine; a return line for recirculating non-consumed liquefied gas of the liquefied gas, which is not consumed by the engine, to upstream of the engine; a separator provided in the return line to be supplied with the recirculated liquefied gas and separate same into gas and liquid; a liquid line for supplying the liquid-phase liquefied gas, separated by the separator, to the rear end of the delivery pump in the fuel supply line; a cooler provided downstream of the junction point of the liquid line in the fuel supply line to cool the liquefied gas; and a refrigerant supply line diverging from the fuel supply line between the delivery pump and the junction point of the liquid line to supply the entire liquefied gas pumped by the delivery pump or a part thereof as a refrigerant to the cooler.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 17/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT - Éléments, détails ou accessoires de navires, non prévus ailleurs
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 13/04 - Disposition ou montage des soupapes
• F17C 13/02 - Adaptations spéciales des dispositifs indicateurs, de mesure ou de contrôle
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux

Abrégé

Disclosed are a system and a method for supplying fuel for a liquefied gas carrier. The system for supplying fuel for a liquefied gas carrier of the present invention comprises: a fuel supply line through which liquefied gas is supplied from a fuel supply tank provided on the deck of a vessel to an engine inside the vessel; a compression part which is provided in the fuel supply line and compresses the liquefied gas to be supplied to the engine inside the vessel to a pressure required for the engine; a return line which recirculates liquefied gas that has not been consumed by the engine from among the liquefied gas to an upstream of the engine; a separator which is provided in the return line and performs gas-liquid separation of the recirculated liquefied gas; and a decompression part which is provided in an upstream of the separator in the return line, wherein the liquefied gas recirculated through the return line is cooled under reduced pressure in the decompression part and introduced into the separator.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 17/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT - Éléments, détails ou accessoires de navires, non prévus ailleurs
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 2/14 - Chauffage; Réfrigération des soutes à cargaison liquide
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 13/02 - Adaptations spéciales des dispositifs indicateurs, de mesure ou de contrôle
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux

Abrégé

The present invention relates to a system and a method for regasifying liquefied gas of a ship, wherein electric power is produced by recovering low-temperature heat while regasifying liquefied gas, thereby improving the energy efficiency. A system for regasifying liquefied gas of a ship according to the present invention comprises: a gasifier for gasifying liquefied gas through heat exchange with a first heat transfer medium; a trim heater for heating regasified gas transferred from the gasifier to a gas consumer to a temperature required by the gas consumer through heat exchange with a second heat transfer medium; a first cycle for circulating the first heat transfer medium; and a second cycle for circulating the second heat transfer medium. The first cycle comprises a first heat exchanger for gasifying a first heat transfer medium to be supplied to the gasifier through heat exchange with a heat source, and an expansion generator for producing electric power by expanding the first heat transfer medium gasified by the first heat exchanger. The second cycle comprises a second heat exchanger for heating a second heat transfer medium to be supplied to the trim heater through heat exchange with the heat source.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 3/04 - Entraînement des auxiliaires par l'ensemble moteur autre que celui de la propulsion
• B63B 13/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT Équipement automatique pour l'assèchement; Dalots
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression
• F17C 13/04 - Disposition ou montage des soupapes
• F17C 13/02 - Adaptations spéciales des dispositifs indicateurs, de mesure ou de contrôle

Abrégé

The present invention relates to a system and a method for supplying liquefied gas, which can treat boil-off gas, generated when liquefied gas is supplied to the storage tank of a ship, inside the ship without returning same to the outside. In addition, the present invention relates to a system for supplying liquefied gas fuel to a ship, the system being capable of treating boil-off gas, generated when liquefied gas fuel is supplied to the fuel tank of the ship, inside the ship without returning same to the outside. The system for supplying liquefied gas fuel, of the present invention, which supplies liquefied gas from a liquefied gas supply ship to a ship including a plurality of liquefied gas storage tanks, comprises: a liquefied gas line for supplying the liquefied gas from the liquefied gas supply ship to any one of the plurality of liquefied gas storage tanks; a gas discharge line for discharging the boil-off gas generated by supplying the liquefied gas to the one liquefied gas storage tank; and a gas supply line for supplying the boil-off gas to the one or more other liquefied gas storage tanks.

Classes IPC  ?

• B63B 27/34 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers pour le transfert entre des navires en mer ou entre un navire et un poste situé en mer à l'aide de systèmes de canalisations
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 2/08 - Ventilation; Conditionnement d'air des cales
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression
• F17C 13/04 - Disposition ou montage des soupapes

Abrégé

The present invention provides a shipbuilding method employing a non-floating tandem method in a dry dock and comprising: a step of constructing a plurality of homogeneous or heterogeneous ship blocks in one column or two columns in the same dry dock, performing hull work on a partially launched ship in an area adjacent to a dock head, and performing partial hull work on a launched ship in an area adjacent to a dock gate; a step of forcedly pouring water into the partially launched ship through a pump; a step of floating the launched ship by opening the dock gate of the dry dock and introducing seawater, and non-floating the partially launched ship; a step of carrying out the floated launched ship to an inner wall outside the dock gate; a step of closing the dock gate and draining seawater from the dry dock; and a step of performing remaining partial hull work on the partially launched ship at the same position.

Classes IPC  ?

• B63B 73/10 - Construction ou assemblage de navires à partir de sous-ensembles de coques préfabriquées, c. à d. de sous-ensembles transversaux complets de coques
• B63C 1/08 - Cales sèches

Abrégé

Disclosed are a system and method for supplying fuel for a ship. The present method for supplying fuel for a ship in which 1) excess liquefied gas is supplied to an engine (E) being supplied with a non-compressible fluid as fuel, 2) surplus fuel, which remains after being used in the engine (E) and is then discharged from the engine (E), is cooled by heat-exchanging same with the liquefied gas discharged from a storage tank (T), 3) the surplus fuel which has been heat-exchanged and cooled in step 2) after being discharged from the engine (E) is returned to the storage tank (T), and 4) the liquefied gas used as a coolant for heat exchange in step 2) after being discharged from the storage tank (T) is supplied to the engine (E), so that excess liquefied gas, which is capable of accommodating a load variation of the engine is supplied as a fuel to the engine, thereby preventing cavitation of the engine.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 25/14 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées pressurisées
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• F02M 31/16 - Autres appareils pour chauffer le combustible
• F17C 7/02 - Vidage des gaz liquéfiés
• F17C 5/02 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz liquéfiés

Abrégé

The present invention provides a fuel supply system, for an environment-friendly ship, which selectively uses an existing fuel and an ammonia fuel or uses a mixture thereof as a fuel for a propulsion engine and a power generation engine of a ship so as to follow ship greenhouse gas regulations to be reinforced in phases at major points until 2050.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 17/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT - Éléments, détails ou accessoires de navires, non prévus ailleurs
• B63H 21/14 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs à combustion interne
• F02D 19/06 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p.ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé
• F02D 19/08 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p.ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé utilisant simultanément des combustibles multiples
• F02M 31/125 - Réchauffage du combustible
• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opération; Commande spécialement adaptés à la conversion catalytique

Abrégé

The present invention relates to a polar vessel having a cooling water control system using seawater to cool a heating device, the polar vessel comprising: a sea chest which takes in and stores seawater from the outside of the vessel; an engine room ballast tank formed on the hull of the vessel to store the seawater; a heating device which generates energy to operate the vessel and in which heat is generated; a heat exchanger which exchanges heat between a heat medium heated in the heating device and the seawater to cool the heat medium and heat the seawater; and a main seawater pump which supplies the seawater stored in the sea chest or the engine room ballast tank to the heat exchanger, wherein during normal times when no freezing is generated in the sea chest, the seawater flowing through the sea chest is supplied to the heat exchanger by the main seawater pump, and in the event of an emergency when freezing is generated in the sea chest, the seawater stored in the engine room ballast tank is supplied to the heat exchanger by the main seawater pump.

Classes IPC  ?

• B63J 2/12 - Chauffage; Réfrigération
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 13/00 - NAVIRES OU AUTRES EMBARCATIONS FLOTTANTES; MATÉRIEL D'ARMEMENT Équipement automatique pour l'assèchement; Dalots
• B63B 43/06 - Amélioration de la sécurité des navires, p.ex. contrôle des avaries, non prévue ailleurs réduisant le risque de chavirer ou de sombrer par augmentation de la stabilité employant des réservoirs de ballastage
• B63B 35/08 - Brise-glace

Abrégé

The present invention relates to a membrane-type insulating system for a cargo tank and a liquefied gas fuel container of a cryogenic liquefied gas carrier, the system having a corrugation-finishing membrane, which is made from an Invar material, welded to a secondary membrane connecting part or a primary membrane connecting part in order to seal corrugations at corner parts when a primary membrane and/or a secondary membrane is made from a SUS material having the corrugations, so that a separate angle piece for connecting the corrugations on the adjacent wall surfaces of the corner parts is unnecessary, and thus workability is improved and manufacturing costs can be reduced.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique

Abrégé

Disclosed is an insulating wall fixing device of a liquefied natural gas storage tank. An insulating wall fixing device of a liquefied natural gas storage tank according to the present invention is characterized by comprising a base socket and a fixing stud inserted into the base socket. The base socket has an insertion hole formed on the upper surface and through which the fixing stud is inserted, and has a space formed therein in order to receive one end portion of the fixing stud. The fixing stud includes an insertion portion inserted into the inner space of the base socket via the insertion hole, and a coupling portion which extends protruding from the insertion portion to the outside of the base socket. The insertion portion has a spherical shape and includes a plurality of leg members which are divided by grooves formed from one end portion toward the other end portion of the insertion portion. When the fixing stud is inserted into the base socket, the fixing stud enters the insertion hole as the plurality of leg members formed in the insertion portion are drawn in toward the grooves.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique

Abrégé

Disclosed is a heat insulation structure for corner parts of a liquefied natural gas storage tank. According to the present invention, in a liquefied natural gas storage tank having sequentially stacked therein a second heat insulation wall arranged on each of the inner walls of a ship body and comprising a plurality of second heat insulation panels, a second sealing wall installed on the second heat insulation wall, a first heat insulation wall arranged on the second sealing wall and comprising a plurality of first heat insulation panels, and a first sealing wall installed on the first heat insulation wall, the liquefied natural gas storage tank comprises a corner part assembly which finishes the edges of the first sealing walls at corner parts of the storage tank, thereby completing sealing of the storage tank. The corner part assembly comprises an end cap sheet which finishes and seals the four edges of the first sealing walls installed on the respective surfaces of the storage tank, wherein, in the end cap sheet, there are formed end cap wrinkles, which finish wrinkles formed in the first sealing walls and have an end cap shape, and long wrinkles extending in a direction perpendicular to the direction in which the end cap wrinkles extend.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique

Abrégé

An insulation wall fixing device for a liquefied natural gas storage tank is disclosed. The present invention relates to a fixing device for fixing a primary insulation wall and a secondary insulation wall of a liquefied natural gas storage tank, the fixing device comprising a base socket mounted in a groove formed on the upper surface of a secondary insulator of the secondary insulation wall, wherein the base socket is arranged so that the lower end portion thereof protrudes to be stepped, thereby allowing the protruding stepped portion of the base socket to support the lower surface part of an upper protection plate of the secondary insulation wall.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique

Abrégé

A system for supplying fuel for a ship is disclosed. The system for supplying fuel for a ship comprises: a pump (10) for compressing liquefied gas discharged from a storage tank (T), according to the required pressure of an engine (E); a heat exchanger (20) which, by exchanging heat, heats the liquefied gas compressed by the pump (10), according to the required temperature of the engine (E); and a buffer tank (50) for temporarily storing the liquefied gas and supplying the liquefied gas to the engine (E), wherein the liquefied gas is discharged from the storage tank (T) and passes through the pump (10) and the heat exchanger (20). The system supplies gas to the buffer tank (50) by means of a gas supply line (F3) in order to maintain and adjust the internal pressure of the buffer tank (50), and supplies the liquefied gas required by the engine (E) from the buffer tank (50) to the engine (E).

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 25/14 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées pressurisées
• F17C 7/02 - Vidage des gaz liquéfiés
• F17C 5/02 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz liquéfiés
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux

Abrégé

An insulation structure of a membrane-type storage tank is disclosed. The present invention relates to the membrane-type storage tank comprising: a secondary insulation wall comprising a plurality of secondary insulation panels; a primary insulation wall which comprises a plurality of primary insulation panels, and which is disposed at the upper part of the secondary insulation wall; and a plurality of fixing devices provided at the upper parts of the secondary insulation panels to be coupled with the primary insulation panels, wherein the plurality of fixing devices are arranged on the center line of the secondary insulation panels in a width direction so that the movement of the fixing devices in the width direction is prevented, and the plurality of fixing devices are arranged to be spaced at equal intervals with respect to the longitudinal direction of the secondary insulation panels and slits are formed at locations spaced at equal distances in front of and behind each fixing device so as to prevent the movement of the fixing devices in the longitudinal direction, and thus the influence, caused by thermal shrinkage and hull behavior, on the fixing points of the fixing devices provided at the upper part of the secondary insulation wall is minimized.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique

Abrégé

The present invention relates to a waste heat recovery device of a polar region ship and the polar region ship including same and, more specifically, to a waste heat recovery device of a polar region ship and the polar region ship including same, the device recovering waste heat so as to heat air flowing in from the outside.

Classes IPC  ?

• B63J 2/12 - Chauffage; Réfrigération
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

A ship fuel supply system is disclosed. The ship fuel supply system comprises: a first decompressing device (50) for decompressing surplus fuel discharged from an engine (E); and a gas-liquid separator (60) for separating, into a gas phase and a liquid phase, the gas-liquid mixed state fluid decompressed by the first decompressing device (50), wherein the gas-state gas separated by the gas-liquid separator (60) is returned to a storage tank (T), and an excess of liquefied gas is supplied as fuel to the engine (E), and then fuel remaining after use in the engine (E) is discharged from the engine (E) and supplied to the first decompressing device (50).

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 25/14 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées pressurisées
• F17C 7/02 - Vidage des gaz liquéfiés
• F17C 5/02 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz liquéfiés
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux

Abrégé

The present invention relates to an air supply system for a polar region vessel that sails in polar regions, the air supply system heating low-temperature external air of a polar environment and supplying same to a location on a vessel that requires air, and thus can be operated with a simple structure and high energy efficiency and at low cost.

Classes IPC  ?

• B63J 2/06 - Ventilation; Conditionnement d'air des salles de machines
• B63H 21/14 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs à combustion interne
• F24F 12/00 - Utilisation de systèmes à récupération d'énergie dans le conditionnement de l'air, la ventilation ou la formation d'écrans d'air
• F24F 7/007 - Ventilation à écoulement forcé
• F02M 31/08 - Appareils pour le traitement thermique de l'air comburant, du combustible ou du mélange air-combustible pour chauffer l'air comburant ou le mélange air-combustible par gaz chauds, p.ex. par mélange d'air froid et chaud les gaz étant les gaz d'échappement
• F02B 39/10 - Transmissions d'entraînement non mécaniques, p.ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F01P 5/02 - Pompage de l'air de refroidissement; Aménagements de pompes à air de refroidissement, p.ex. ventilateurs ou soufflantes
• B63J 2/12 - Chauffage; Réfrigération

Abrégé

The present invention relates to an air conditioning system for a polar region ship, wherein the air conditioning system is applied to a polar region ship sailing in a polar region and uses low temperature external air in a polar region environment, the air conditioning system achieving high energy efficiency through a simple structure and enabling an operation with low costs. An air conditioning system of a polar region ship according to the present invention may comprise: an air suctioning chamber for suctioning external air as air-conditioning air for the polar region ship and combustible air to be supplied to an engine; an air heater for exchanging heat between the external air suctioned to the air suctioning chamber and an exhaust gas discharged from the engine, so as to heat the external air; and an air damper for supplying, to the air heater, external air to be supplied as the air-conditioning air among the external air suctioned to the air suctioning chamber.

Classes IPC  ?

• B63J 2/06 - Ventilation; Conditionnement d'air des salles de machines
• B63H 21/14 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs à combustion interne
• F24F 12/00 - Utilisation de systèmes à récupération d'énergie dans le conditionnement de l'air, la ventilation ou la formation d'écrans d'air
• F24F 7/007 - Ventilation à écoulement forcé
• F24F 13/28 - Agencement ou montage de filtres
• F02B 39/10 - Transmissions d'entraînement non mécaniques, p.ex. transmissions hydrauliques ayant un rapport de réduction variable électriques
• F01P 5/02 - Pompage de l'air de refroidissement; Aménagements de pompes à air de refroidissement, p.ex. ventilateurs ou soufflantes
• B63J 2/12 - Chauffage; Réfrigération

Abrégé

The present invention relates to a membrane type heat insulation system for a cryogenic liquefied gas carrier cargo tank and a liquefied gas fuel container, wherein a secondary heat insulation layer comprises a plurality of panels which are stacked in multiple layers while each pair of upper and lower panels is arranged to intersect each other, whereby heat loss which may occur in the gap between the panels can be minimized and deformation due to a temperature difference can be minimized.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique

Abrégé

Disclosed are a membrane finishing sheet and a membrane insulation structure comprising the same. In accordance with the present invention, a membrane finishing sheet, which is disposed at a membrane finishing part among multiple membrane sheets which form a sealing wall installed at a membrane type cargo, comprises a corrugated part having a structure closed in a direction toward the membrane finishing part. In addition, a membrane insulation structure comprising a membrane finishing sheet according to the present invention comprises a membrane finishing sheet disposed at a membrane finishing part among multiple membrane sheets which form a sealing wall installed at a membrane type cargo. Among four sides of the membrane finishing sheet, a finishing side in contact with the membrane finishing part has a structure in which the corrugated part is closed and thus provides a membrane insulation structure that does not require a separate finishing member for sealing a membrane.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique

Abrégé

Disclosed is a membrane bonding structure for bonding a membrane for forming a sealed wall between first and second surfaces of a storage tank for storing liquefied gas. The membrane bonding structure may comprise: a planar portion panel (20) installed on the first and second surfaces so as to thermally insulate the storage tank; a bonding panel (30) installed on the boundary portion between the first and second surfaces together with the planar portion panel; a first membrane (42) attached to the planar portion panel on the first surface and to the bonding panel so as to seal the storage tank; and a second membrane (44) attached to the planar portion panel on the second surface and to the bonding panel so as to seal the storage tank. The first membrane and the second membrane may be attached to the bonding panel so as to make no direct connection.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique

Abrégé

The present invention relates to a device and a method for processing boil-off gas in a liquefied gas regasification system and, more particularly, to a device and a method for processing boil-off gas in a liquefied gas regasification system, wherein, even if there is no or little amount of regasified gas to be sent in a liquefied gas regasification system, boil-off gas can be reliquefied and recollected. A device for processing boil-off gas in a liquefied gas regasification system according to the present invention is a boil-off gas processing device for processing boil-off gas generated in a liquefied gas regasification system, the boil-off gas processing device comprising: a low-pressure compressor for compressing boil-off gas at a pressured required by a fuel consumer; a high-pressure compressor installed at the rear end of the low-pressure compressor in series with the low-pressure compressor so as to compress the low-pressure boil-off gas, which has been compressed by the low-pressure compressor, at a pressure required by a regasified gas consumer; a low-temperature heat exchanger for cooling the high-pressure boil-off gas compressed by the high-pressure compressor; a pressure-reducing device for reducing the pressure of the high-pressure boil-off gas, which has been cooled by the low-temperature heat exchanger, to the inner pressure of a liquefied gas storage tank for storing the liquefied gas; and a liquefied gas drum for separating flash gas generated by the pressure-reducing device in the pressure-reducing process, wherein liquid-state reliquefied boil-off gas separated from the liquefied gas drum is recollected into the liquefied gas storage tank.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés

Abrégé

The present invention relates to a liquid fuel power generation and distribution system, and a loading/unloading method using the system, the system: using evaporation heat, which is generated when liquefied gas that is to be used as fuel is re-vaporized, that is, cold energy as a cooling heat source of a freezer container during a power generation operation in a floating power generation plant, thereby enabling energy efficiency to increase, reducing fuel costs, and enabling environmental pollution caused by heated seawater discarded to the sea to be effectively prevented; allowing a freight vehicle to enter a loading/unloading area of the freezer container through a connecting ramp for connecting a floating structure and the land when the freezer container is loaded/unloaded or performing loading/unloading using a cargo ship moored to the side of the floating structure, thereby enabling the distribution utilization of the freezer container to increase and noise and vibration, which are generated when a compressor of the freezer container is used, to be removed; increasing space utilization by mounting the freezer container on floating power generation equipment in an integrated form; and maximizing the distribution and movement convenience of frozen cargo from the ship and the land by means of the floating freezer container having independent power generation equipment, thereby facilitating installation in island regions and lagging regions.

Classes IPC  ?

• B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p.ex. portant des appareils séparateurs huile-eau
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 2/12 - Chauffage; Réfrigération
• B63B 17/04 - Montants; Filières garde-corps
• B65D 88/12 - Grands réceptacles rigides spécialement conçus pour le transport
• B65D 88/74 - Grands réceptacles comportant des moyens pour le chauffage, le refroidissement, l'aération ou un autre conditionnement du contenu
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression

Abrégé

A fuel oil supply method for a ship is disclosed. The fuel oil supply method for a ship is a method for supplying fuel oil to an engine that uses both natural gas and fuel oil as fuel, the method comprising: supplying compressed air to a pressurized tank and storing fuel oil in a pressurized state; when the engine is operated in a fuel oil mode, supplying the fuel oil stored in the pressurized tank to a circulation pump, and adjusting, by a temperature adjusting device, the fuel oil, pressurized by the circulation pump, to a temperature that is required by the engine; and supplying the fuel oil that has passed through the temperature adjusting device to the engine.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 25/08 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides
• F02D 19/06 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p.ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé

Abrégé

The present invention relates to a system for circulating air through double pipes for supplying gas, the system including: double pipes connected to a gas handling device and supplied with gas; a gas supply unit for supplying gas to the gas handling device through an inner pipe of the double pipes; an air supply unit for supplying air through an outer pipe of the double pipes; and an air suctioning means for suctioning and circulating the air, which is supplied to the outer pipe by the air supply unit, by the introduction of a high pressure fluid. According to the present invention, rather than circulating air through the outer pipe of the double pipes by a fan as in the prior art, air can be circulated through the double pipes for gas supply by a simpler structure and more effective configuration.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 13/12 - Aménagements ou montage de dispositifs pour prévenir ou atténuer les effets d'explosion
• F17D 5/00 - Protection ou surveillance des installations
• F17D 5/04 - Prévention, interception ou localisation des pertes au moyen d'un fluide signalisateur contenu dans une double paroi

Abrégé

Disclosed is an engine operating method for a ship having multiple engines installed therein. The ship engine operating method comprises a step wherein, if the load demand of a ship is equal to or greater than 90% and equal to or less than125%, then one from among the multiple engines is operated in skip firing mode, one is operated in normal mode, and the rest of the engines are not operated.

Classes IPC  ?

• B63H 21/21 - Moyens de commande du moteur ou de la transmission spécialement adaptés à l'utilisation à bord d'un navire
• B63H 21/14 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs à combustion interne
• F02D 19/06 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p.ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé
• F02D 41/30 - Commande de l'injection de combustible

Abrégé

Disclosed is a ship engine operating method. The ship engine operating method comprises: the first step for varying the gas ratio from 0 to 100% for a first engine at the current load, and determining the gas consumption for each gas ratio; the second step for varying the gas ratio from 0 to 100% for the first engine at the current load, and determining fuel oil consumption for each gas ratio; the third step for varying the gas ratio from 0 to 100% for the first engine at the current load, and calculating the amount of combustible gas in the second engine for each gas ratio; the fourth step for determining the gas ratio of the second engine for each amount of combustible gas in the second engine calculated in the third step; the fifth step for calculating the fuel oil consumption at the current load in the second engine for each gas ratio thereof determined in the fourth step; the sixth step for calculating the total fuel oil consumption by adding the fuel oil consumption of the first engine calculated in the second step and the fuel oil consumption of the second engine calculated in the fifth step; and the seventh step for transmitting commands to the first engine and second engine so that same operate at the gas ratios of the first and second engines as in the case of the lowest total fuel oil consumption as calculated in the sixth step. The first engine and second engine are operated in a fuel sharing mode.

Classes IPC  ?

• B63H 21/21 - Moyens de commande du moteur ou de la transmission spécialement adaptés à l'utilisation à bord d'un navire
• B63H 21/14 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs à combustion interne
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F02D 19/06 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p.ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé
• B63B 25/08 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides

Abrégé

Disclosed is a boil-off gas reliquefaction system for a ship. The boil-off gas reliquefaction system for a ship comprises: a multi-stage compressor for compressing boil-off gas; a heat exchanger for subjecting the boil-off gas compressed by the multi-stage compressor to heat exchange, and thus cooling same, by using the boil-off gas before being compressed by the multi-stage compressor as a refrigerant; a decompressing device installed at the rear end of the heat exchanger, and decompressing the fluid cooled by the heat exchanger; and a bypass line for enabling the boil-off gas to bypass the heat exchanger and be supplied to the multi-stage compressor.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

A boil-off gas reliquefaction system is disclosed. The boil-off gas reliquefaction system comprises: a compressor for compressing boil-off gas; a heat exchanger for subjecting the boil-off gas compressed by the compressor to heat exchange, and thus cooling same, by using the boil-off gas before being compressed by the compressor as a refrigerant; and a decompressing device installed at the rear end of the heat exchanger, and decompressing the fluid cooled by the heat exchanger. The boil-off gas reliquefaction system comprises at least one among: a first temperature sensor installed at the front end of a low-temperature flow path of the heat exchanger, and a fourth temperature sensor installed at the rear end of a high-temperature flow path of the heat exchanger; a second temperature sensor installed at the rear end of the low-temperature flow path of the heat exchanger, and a third temperature sensor installed at the front end of the high-temperature flow path of the heat exchanger; and a first pressure sensor installed at the front end of the high-temperature flow path of the heat exchanger, and a second pressure sensor installed at the rear end of the high-temperature flow path of the heat exchanger. The compressor comprises at least one oil-lubricated cylinder.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

A boil-off gas reliquefaction system is disclosed. The boil-off gas reliquefaction system comprises: a compressor for compressing boil-off gas; a heat exchanger for subjecting the boil-off gas compressed by the compressor to heat exchange, and thus cooling same, by using the boil-off gas before being compressed by the compressor as a refrigerant; a decompressing device installed at the rear end of the heat exchanger, and decompressing the fluid cooled by the heat exchanger; and a second oil filter installed at the rear end of the decompressing device, wherein the compressor comprises at least one oil-lubricated cylinder, and the second oil filter is for very low temperatures.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

Disclosed is a method for discharging lubricating oil in a system for reliquefying boil-off gas by compressing the boil-off gas by means of a compressor, subjecting the compressed boil-off gas to heat exchange with the pre-compression state boil-off gas in a heat exchanger, and thus cooling same, and decompressing, by means of a decompressing device, the fluid cooled by the heat exchange. The method for discharging lubricating oil is characterized in that: the boil-off gas used as a refrigerant in the heat exchanger may be supplied to the heat exchanger via a first supply line; the boil-off gas used as a refrigerant in the heat exchanger may be supplied to the compressor via a second supply line; the boil-off gas before being used as a refrigerant in the heat exchanger may be supplied to the compressor by bypassing the heat exchanger via a bypass line; a bypass valve for controlling fluid flow and opening/closing is installed on the bypass line; a first valve for controlling fluid flow and opening/closing is installed at the front end of the heat exchanger on the first supply line; a second valve for controlling fluid flow and opening/closing is installed at the rear end of the heat exchanger on the second supply line; and the compressor comprises at least one oil-lubricated cylinder. The method for discharging lubricating oil comprises the steps of: 2) opening the bypass valve and closing the first valve and the second valve; 3) compressing, by means of the compressor, the boil-off gas before being used as a refrigerant in the heat exchanger by having the boil-off gas pass the bypass line; and 4) transferring one portion or all of the boil-off gas compressed by the compressor to the heat exchanger. By means of the boil-off gas of which the temperature has risen by being compressed by the compressor, condensed or coagulated lubricating oil may be discharged by being melted or by having the viscosity thereof decreased.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

Disclosed is a method for discharging lubricating oil in a system for reliquefying boil-off gas by compressing the boil-off gas by means of a compressor, subjecting the compressed boil-off gas to heat exchange with the pre-compression state boil-off gas in a heat exchanger, and thus cooling same, and decompressing, by means of a decompressing device, the fluid cooled by the heat exchange. According to the method for discharging lubricating oil, the compressor comprises at least one oil-lubricated cylinder, and it is determined that a "time to discharge condensed or coagulated lubricating oil" has come when at least one of the following conditions is satisfied: a condition where the difference between the temperature, at the front end of the heat exchanger, of the boil-off gas used as a refrigerant in the heat exchanger, and the temperature of the boil-off gas cooled by the heat exchanger after being compressed by the compressor ("temperature difference of low-temperature flow" hereafter) is maintained at a level equivalent to or higher than a first configuration value for a predetermined time or longer; a condition where the difference between the temperature of the boil-off gas used as a refrigerant in the heat exchanger, and the temperature of the boil-off gas transferred to the heat exchanger after being compressed by the compressor ("temperature difference of high-temperature flow" hereafter) is maintained at a level equivalent to or higher than the first configuration value for a predetermined time or longer; and a condition where the difference between the pressure, at the front end of the heat exchanger, of the boil-off gas transferred to the heat exchanger after being compressed by the compressor, and the pressure, at the rear end of the heat exchanger, of the boil-off gas cooled by the heat exchanger ("pressure difference of high-temperature flow path" hereafter) is maintained at a level equivalent to or higher than a second configuration value for a predetermined time or longer.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

A boil-off gas reliquefaction system is disclosed. The boil-off gas reliquefaction system comprises: a compressor for compressing boil-off gas; a heat exchanger for subjecting the boil-off gas compressed by the compressor to heat exchange, and thus cooling same, by using the boil-off gas before being compressed by the compressor as a refrigerant; a bypass line for enabling the boil-off gas to bypass the heat exchanger and be supplied to the compressor; a second valve for controlling fluid flow and opening/closing, which is installed on a second supply line for transferring, to the compressor, the boil-off gas used as a refrigerant in the heat exchanger; and a decompressing device installed at the rear end of the heat exchanger, and decompressing the fluid cooled by the heat exchanger, wherein the compressor comprises at least one oil-lubricated cylinder, and the bypass line converges into the second supply line at the rear end of the second valve.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

The present invention relates to a ship power generation system and method, which increase power generation capacity such that a ship designed as an LNG carrier can be modified into a ship usable as an FSRU. According to one embodiment of the present invention, provided is the ship power generation system comprising: a propulsion engine for transmitting power to a propeller during sailing; a power generation engine for producing electric power which is to be supplied to a regasification equipment during regasification; and additional systems provided so as to drive the propulsion engine, wherein the propulsion engine and the power generation engine are alternatively driven, and the additional systems are used jointly by being respectively connected to the propulsion engine and the power generation engine.

Classes IPC  ?

• B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p.ex. portant des appareils séparateurs huile-eau
• B63J 3/02 - Entraînement des auxiliaires par l'ensemble moteur de propulsion
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63J 1/00 - Aménagements relatifs aux installations de production d'eau douce sur les navires, p.ex. par évaporation et condensation de l'eau de mer
• B63J 3/00 - Entraînement des auxiliaires

Abrégé

A gas discharging system for a vessel according to the present invention includes: an engine using natural gas as fuel; a gas valve unit (GVU) for controlling the flow rate of the natural gas supplied to the engine; an exhaust line connected to the engine and the gas valve unit to discharge the fuel gas that is inside the engine and the gas valve unit; and an ejector installed on the exhaust line, wherein the exhaust line extends to a space disposed closer to the stern of the vessel than an engine room and ensures that the gas discharged through the exhaust line is discharged from the stern of the vessel into the atmosphere or seawater. Therefore, the length of the exhaust line is remarkably reduced in length compared to the related art. Also, the gas discharging system for a vessel according to the present invention discharges the fuel gas that remains in the engine and the gas valve unit, but may also transfer the fuel gas to a gas supply part through the exhaust line and the fuel gas discharge line in order to recycle the fuel gas.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression
• F17C 13/04 - Disposition ou montage des soupapes
• F17C 13/12 - Aménagements ou montage de dispositifs pour prévenir ou atténuer les effets d'explosion
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• B63H 21/14 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs à combustion interne

Abrégé

A boil-off gas reliquefaction system for a vessel is disclosed. The boil-off gas reliquefaction system for a vessel comprises: a second compressor for compressing some of boil-off gas; a heat exchanger for cooling the boil-off gas compressed by the second compressor, by subjecting same to a heat exchange with the rest of the boil-off gas not sent to the second compressor as a refrigerant; a first compressor for compressing the boil-off gas used as the refrigerant in the heat exchanger; and a decompression device for expanding the fluid cooled by the heat exchanger.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

The present invention relates to a system and a method for supplying a fuel in a liquefied natural gas fueled ship to which an engine using liquefied natural gas as a fuel is applied, wherein a pump and a regasification facility are used to supply a liquefied natural gas fuel, without the aid of a compressor, in compliance with fuel supply conditions of the engine. A system for supplying a fuel in a liquefied natural gas fueled ship according to the present invention comprises: an Otto cycle engine using liquefied natural gas as a fuel and operating according to an Otto cycle; a high-pressure pump for compressing liquefied natural gas which has been discharged from a storage tank; a gasifier for gasifying the liquefied natural gas which has been compressed by the high-pressure pump; an expansion valve for expanding the natural gas which has been gasified by the gasifier; and a gas-liquid separator for separating gas and liquid from a gas-liquid mixture formed by the expansion valve, wherein the liquid separated in the gas-liquid separator is recovered into a storage tank, the gas separated in the gas-liquid separator is supplied as a fuel for the Otto cycle engine, thereby adjusting the methane number of a natural gas fuel supplied to the Otto cycle engine.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/14 - Aménagements de l'appareil moteur de propulsion ou de certains de ses éléments pour utilisation à bord des navires le navire étant actionné par moteurs à combustion interne
• F02M 25/08 - Appareils spécifiques conjugués aux moteurs pour ajouter des substances non combustibles ou de petites quantités de combustible secondaire, à l’air comburant, au combustible principal ou au mélange air-combustible ajoutant des vapeurs combustibles aspirées des réservoirs de combustible du moteur
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

A boil-off gas re-liquefying system for an LNG ship is disclosed. The boil-off gas re-liquefying system for an LNG ship comprises: a compressor for compressing a boil-off gas; a heat exchanger for heat exchanging and cooling the boil-off gas, which has been compressed by means of the compressor, by means of a boil-off gas as a refrigerant; and an expansion means for expanding a fluid which has been cooled by means of the heat exchanger. The heat exchanger comprises: a core in which heat exchange between a high-temperature fluid and a low-temperature fluid occurs; and a fluid dispersing means for dispersing a fluid which flows into the core and a fluid which is discharged from the core. The core comprises a plurality of blocks.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

A boil-off gas re-liquefying system for an LNG ship is disclosed. The boil-off gas re-liquefying system for an LNG ship comprises: a heat exchanger for heat exchanging a high-temperature fluid, which is a boil-off gas compressed by means of a compressor, with a low-temperature fluid, which is a boil-off gas before compression, and cooling same; and an expansion means for expanding a fluid which has been cooled by means of the heat exchanger. The heat exchanger comprises: a core having a plurality of blocks in which the heat exchange between the high-temperature fluid and the low-temperature fluid occurs; and a fluid dispersing means for dispersing a fluid which flows into the core and a fluid which is discharged from the core. The core comprises a plurality of blocks. The fluid dispersing means is coupled to the heat exchanger so as to enable heat expansion relief.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients
• F28F 9/02 - Boîtes de distribution; Plaques d'extrémité

Abrégé

A boil-off gas re-liquefying method for an LNG ship is disclosed. The boil-off gas re-liquefying method for an LNG ship comprises the steps of: (1) compressing a boil-off gas; (2) cooling the boil-off gas, which has been compressed in step (1), by subjecting same to heat exchange by means of a heat exchanger having a boil-off gas as a refrigerant; (3) expanding a fluid which has been cooled in step (2); and (4) stably maintaining re-liquefaction performance even if the flow rate of the boil-off gas to be re-liquefied being supplied to the heat exchanger after being compressed in step (1) varies.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

Disclosed is a ship fuel oil switching system for switching a type of fuel oil, which has been used as fuel for an engine, to another type of fuel oil as fuel for the engine. The ship fuel oil switching system comprises: a supply portion for supplying fuel oil; a circulation portion for receiving fuel oil from the supply portion and circulating the same; and a control portion for controlling the supply portion and the circulation portion. The supply portion comprises multiple tanks for storing different types of fuel oil. The engine receives fuel oil from the circulation portion. Fuel oil that remains after being used by the engine is recirculated through the circulation portion. The control portion controls the flow rate of fuel oil discharged from each of the multiple tanks, thereby adjusting the mixing ratio of fuel oil sent to the engine.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F02D 19/06 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p.ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé
• F02D 19/08 - Commande des moteurs caractérisés par l'emploi de combustible non liquide, de combustibles multiples ou de substances non combustibles ajoutées au mélange carburant particulière aux moteurs fonctionnant avec des combustibles multiples, p.ex. alternativement du fuel léger et du fuel lourd, et autres que les moteurs indifférents au combustible utilisé utilisant simultanément des combustibles multiples

Abrégé

The present invention relates to a liquefied gas regasification system and an operation method therefor and, more specifically, to a liquefied gas regasification system capable of smoothly supplying a consumer with a natural gas gasified from a liquefied gas, and an operation method therefor. The liquefied gas regasification system according to the present invention comprises: a supply pump for discharging a liquefied gas stored in a liquefied gas storage tank to the outside thereof; a high-pressure pump for receiving the liquefied gas from the liquefied gas storage tank and compressing the same; and a fourth liquefied gas supply line connecting the high-pressure pump and the supply pump, wherein the high-pressure pump and the supply pump are directly connected by the fourth liquefied gas supply line and thus the liquefied gas supplied to the high-pressure pump is directly supplied by the supply pump.

Classes IPC  ?

• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/04 - Disposition ou montage des soupapes

Abrégé

The present invention relates to a liquefied gas regasification system and an operating method and, more particularly, to a liquefied gas regasification system and an operating method, the system maintaining minimum operable level of a high-pressure pump by smoothly discharging a boil-off gas produced by the high-pressure pump for supplying, to a vaporizer, a liquefied gas to be regasified. According to the present invention, the liquefied gas regasification system comprises: the high-pressure pump for compressing, at high pressure, the liquefied gas supplied from a liquefied gas storage tank; a knock-out drum accommodating the boil-off gas produced by the high-pressure pump, such that the high-pressure pump maintains the minimum operable level; a gas discharge line for discharging the gas from the knock-out drum; and a liquid discharge line for discharging liquid from the knock-out drum, wherein the gas discharged through the gas discharge line is supplied to a gas-requiring place including the liquefied gas storage tank or a fuel supply system, and the liquid discharged through the liquid discharge line is supplied to a liquid-requiring place including the lower part of the liquefied gas storage tank.

Classes IPC  ?

• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 13/04 - Disposition ou montage des soupapes

Abrégé

Disclosed is a system for supplying fuel gas for a ship. The system for supplying fuel gas for a ship comprises: a vaporizer for vaporizing liquefied natural gas to supply natural gas to an engine; a first heater for exchanging heat between cooling water discharged after cooling the engine and a fluid used as a heating medium in the vaporizer to heat the fluid; and a fresh water generator for obtaining fresh water by heating sea water with a part of or the entirety of a heat source of the cooling water, which has passed through the first heater after being discharged from the engine, wherein the vaporizer exchanges heat between the heating medium having been heated by the first heater and the liquefied natural gas to vaporize the liquefied natural gas.

Classes IPC  ?

• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63J 1/00 - Aménagements relatifs aux installations de production d'eau douce sur les navires, p.ex. par évaporation et condensation de l'eau de mer
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• F02M 21/06 - Appareils de déliquéfaction, p.ex. opérant par chauffage
• F02M 25/08 - Appareils spécifiques conjugués aux moteurs pour ajouter des substances non combustibles ou de petites quantités de combustible secondaire, à l’air comburant, au combustible principal ou au mélange air-combustible ajoutant des vapeurs combustibles aspirées des réservoirs de combustible du moteur
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

The present invention relates to an apparatus and a method for reliquefaction of boil-off gas generated in a liquefied gas storage tank applied to a vessel. The apparatus for reliquefaction of boil-off gas for a vessel, according to the present invention, which is a reliquefaction apparatus for reliquefying boil-off gas generated in a liquefied gas storage tank installed on a vessel, comprises: a compression unit for compressing the boil-off gas discharged from the storage tank; and a heat exchanger for heat-exchanging the compressed boil-off gas compressed by the compression unit with the boil-off gas discharged from the storage tank, wherein the apparatus for reliquefaction of boil-off gas for a vessel further comprises: a first expansion means for dividing the boil-off gas passing through the heat exchanger into at least two flows including a first flow and a second flow, and expanding the divided first flow; a first intercooler for cooling the second flow remaining after the division of the first flow by using the first flow expanded by the expansion means as a refrigerant; and a receiver for receiving a second flow having passed through the first intercooler, in which a downstream pressure of the compression unit is controlled by a flow discharged from the receiver.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 5/02 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz liquéfiés
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients

Abrégé

An LNG regasification system is disclosed. The LNG regasification system may comprise: an LNG supply line for supplying LNG, stored in an LNG storage tank, to a source of demand; a high-pressure pump installed in the LNG supply line and configured to pressurize the LNG to reach a pressure at which the same is to be supplied to the source of demand; a bypass pipe installed such that the high-pressure pump can be bypassed; and a low-pressure pump installed in the bypass pipe so as to pressurize the LNG. The low-pressure pump can pressurize the LNG to reach a pressure lower than the pressure reached by the high-pressure pump.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 9/00 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients
• F17C 13/04 - Disposition ou montage des soupapes

Abrégé

The present invention relates to an Internet of Things-based automatic environmental regulation compliance system and a method therefor, the system comprising: pieces of equipment to be monitored, which are located in each zone of a ship and discharge and manage pollutants; an environmental regulation integration system which receives navigation position information and navigation time point information to determine whether or not each of the pieces of equipment to be monitored violates legislation and controls each thereof so as not to violate the legislation on marine pollution regulations.

Classes IPC  ?

• G06Q 50/26 - Services gouvernementaux ou services publics
• G06Q 50/10 - Services
• H04L 12/12 - Dispositions pour la connexion ou la déconnexion à distance de sous-stations ou de leur équipement
• H04B 7/185 - Stations spatiales ou aériennes

Abrégé

Disclosed is a re-liquefying device using a boil-off gas as a cooling fluid so as to re-liquefy the boil-off gas generated from a liquefied gas storage tank provided in a ship. A boil-off gas re-liquefying device for a ship, in a boil-off gas re-liquefying device provided in a ship for transporting a liquefied gas, comprises: a multi-stage compression unit for compressing, by means of a plurality of compressors, a boil-off gas generated from a liquefied gas storage tank; a heat exchanger in which the boil-off gas generated from the storage tank and the boil-off gas compressed by means of the multi-stage compression unit are heat exchanged; a vaporizer for heat exchanging the boil-off gas cooled by means of the heat exchanger and a separate liquefied gas supplied to a fuel demand source of a ship, and thus cooling the boil-off gas; an intermediate cooler for cooling the boil-off gas that has been cooled by means of the heat exchanger; and an expansion means for branching a part of the boil-off gas, which is supplied to the intermediate cooler, and expanding same, wherein the remaining part of the boil-off gas, which is supplied to the intermediate cooler, is heat exchanged in the intermediate cooler with the boil-off gas, which has been expanded by means of the expansion means, and cooled and then recovered to the storage tank.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

Disclosed is a ship having a liquefied gas storage tank. The ship comprises: a multi-stage compressor for compressing a boil-off gas discharged from a storage tank and comprising a plurality of compression cylinders; a second heat exchanger for heat exchanging a fluid, which has been compressed by means of the multi-stage compressor, and thus cooling same; a first decompressing device for expanding a flow (hereafter referred to as "flow a1") partially branched from the flow (hereafter referred to as "flow a") that has been cooled by means of the second heat exchanger; a third heat exchanger for heat exchanging, by means of "flow a1" which has been expanded by means of the first decompressing device as a refrigerant, the remaining flow (hereafter referred to as "flow a2") of "flow a" after excluding "flow a1" that has been branched and thus cooling same; and a second decompressing device for expanding "flow a2" which has been cooled by means of the third heat exchanger, wherein the second heat exchanger cools the fluid, which has been compressed by means of the multi-stage compressor, by means of "flow a2", as a refrigerant, which has been expanded by means of the second decompressing device.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

Disclosed is a re-liquefying device using a boil-off gas as a cooling fluid so as to re-liquefy the boil-off gas generated from a liquefied gas storage tank provided in a ship. A boil-off gas re-liquefying device for a ship, in a boil-off gas re-liquefying device provided in a ship for transporting a liquefied gas, comprises: a multi-stage compression unit comprising a plurality of compressors for compressing, in multiple stages, a boil-off gas generated from a liquefied gas storage tank; a heat exchange unit for cooling, by means of heat exchanging, the boil-off gas that has been compressed at the downstream of the multi-stage compression unit; and an expansion unit provided at the downstream of the heat exchange unit and for expanding at least one part of the boil-off gas that has passed through the multi-stage compression unit, wherein a part of the boil-off gas that has passed through the multi-stage compression unit and the heat exchange unit and was cooled can be supplied between compressors that differ from one another among the plurality of compressors.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

Disclosed is a re-liquefying device using a boil-off gas as a cooling fluid so as to re-liquefy the boil-off gas generated from a liquefied gas storage tank provided in a ship. A boil-off gas re-liquefying device for a ship comprises: a plurality of compressors for compressing, in multiple stages, a boil-off gas discharged from a storage tank; a heat exchanger for heat exchanging the boil-off gas, which has been compressed in multiple stages by means of the plurality of compressors, and the boil-off gas discharged from the storage tank; a first expanding means for expanding a part of the boil-off gas that has been compressed by means of the plurality of compressors and then has passed through the heat exchanger; a first intermediate cooler for lowering the temperature of the other part of the boil-off gas that has been compressed by means of the plurality of compressors and then has passed through the heat exchanger; a second expanding means for expanding a part of the boil-off gas that has passed through the first intermediate cooler; a second intermediate cooler for lowering the temperature of the other part of the boil-off gas that has passed through the first intermediate cooler; and a third expanding means for expanding the boil-off gas that has passed through the second intermediate cooler, wherein the boil-off gas that has been expanded by means of the first expanding means is used as a refrigerant in the first intermediate cooler, and the boil-off gas that has been expanded by means of the second expanding means is used as a refrigerant in the second intermediate cooler.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

Disclosed is a ship having a liquefied gas storage tank. The ship comprises: a multi-stage compressor for compressing a boil-off gas discharged from a storage tank and comprising a plurality of compression cylinders; a first heat exchanger for heat exchanging a fluid, which has been compressed by means of the multi-stage compressor, with the boil-off gas discharged from the storage tank and thus cooling same; a first decompressing device for expanding a flow (hereafter referred to as "flow a1") partially branched from the flow (hereafter referred to as "flow a") that has been cooled by means of the first heat exchanger; a third heat exchanger for heat exchanging, by means of "flow a1" which has been expanded by means of the first decompressing device as a refrigerant, the remaining flow (hereafter referred to as "flow a2") of "flow a" after excluding "flow a1" that has been branched and thus cooling same; and a second decompressing device for expanding "flow a2" which has been cooled by means of the third heat exchanger.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

The present invention relates to a wireline tensioner layout structure and an offshore structure having the same layout structure for providing a wireline tensioner having a new layout structure as a layout space of a drill floor is reduced due to a set-back area provided in a hull.

Classes IPC  ?

• B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p.ex. portant des appareils séparateurs huile-eau
• B63B 27/00 - Aménagement des équipements de bord pour l'embarquement ou le débarquement des cargaisons ou des passagers
• E21B 19/00 - Manipulation de tiges, tubages, tubes ou autre objets analogues à l'extérieur du trou de forage, p.ex. dans la tour de forage; Appareils pour faire avancer les tiges ou les câbles
• E21B 15/02 - Supports pour la machine de forage, p.ex. tours de forage ou mâts de forage spécialement adaptés au forage sous l'eau
• B66D 1/52 - Dispositifs de commande automatiques pour faire varier la tension d'une corde ou d'un câble, p.ex. lorsqu'on retire une embarcation de l'eau

Abrégé

A vessel comprising an engine is disclosed. The vessel comprising an engine comprises: a first self-heat exchanger for heat-exchanging boil-off gas discharged from a storage tank; a multi-stage compressor for compressing, in multi-stages, the boil-off gas, which has passed through the first self-heat exchanger after being discharged from the storage tank; a first decompressor for expanding a portion of the boil-off gas, which has passed through the first self-heat exchanger after being compressed by the multi-stage compressor; a second decompressor for expanding the other portion of the boil-off gas, which has passed through the first self-heat exchanger after being compressed by the multi-stage compressor; and a second self-heat exchanger for heat-exchanging and cooling the portion of the boil-off gas, which has been compressed by the multi-stage compressor, by using, as a refrigerant, a fluid which has been expanded by the first decompressor, wherein the first self-heat exchanger cools the other portion of the boil-off gas, which has been compressed by the multi-stage compressor, by using the boil-off gas discharged from the storage tank as a refrigerant.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés

Abrégé

A vessel comprising an engine is disclosed. The vessel comprising an engine comprises: a first self-heat exchanger for heat-exchanging boil-off gas discharged from a storage tank; a multi-stage compressor for compressing, in multi-stages, the boil-off gas, which has passed through the first self-heat exchanger after being discharged from the storage tank; a second self-heat exchanger for precooling the boil-off gas compressed by the multi-stage compressor; a first decompressor for expanding a portion of a fluid which has been cooled by the second self-heat exchanger and the first self-heat exchanger; and a second decompressor for expanding the other portion of the fluid which has been cooled by the second self-heat exchanger and the first self-heat exchanger, wherein the first self-heat exchanger cools the boil-off gas, which has passed through the second self-heat exchanger after being compressed by the multi-stage compressor, by using the boil-off gas discharged from the storage tank as a refrigerant, and the second self-heat exchanger cools the boil-off gas, which has been compressed by the multi-stage compressor, by using the fluid expanded by the first decompressor as a refrigerant.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés

Abrégé

The present invention relates to an integrated environmental regulation management monitoring system and a method therefor, the system comprising: a marine environmental regulation monitoring system, mounted on a ship, for collecting environmental data from equipment provided on the ship, analyzing the collected environmental data to check whether pollutants comply with international convention regulation standards, and transmitting data on the pollutants to a land control system; and the land control system for monitoring in real time compliance with a policy according to the international convention regulation standards through the data transmitted from the marine environment regulation monitoring system.

Classes IPC  ?

• G06Q 50/26 - Services gouvernementaux ou services publics
• G06Q 50/10 - Services
• H04B 7/185 - Stations spatiales ou aériennes
• H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole

Abrégé

A vessel including a storage tank for storing liquefied gas is disclosed. The vessel comprises: a heat exchanger for heat-exchanging compressed boil-off gas (hereinafter, referred to as "first fluid") by using, as a refrigerant, the boil-off gas discharged from the storage tank, so as to cool the same; a main compression part for compressing a part of the boil-off gas discharged from the storage tank; a rest compression part provided in parallel to the main compression part so as to compress the other part of the boil-off gas discharged from the storage tank; and a decompression device for expanding the first fluid having been cooled by exchanging heat with the boil-off gas, which is discharged from the storage tank, in the heat exchanger, wherein the first fluid is: a flow in which the boil-off gas compressed by the main compression part and the boil-off gas compressed by the rest compression part join; or the boil-off gas compressed by the main compression part.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation

Abrégé

A liquefied gas storage tank and a manufacturing method therefor are disclosed. According to the present invention, in the liquefied gas storage tank, the material of a membrane, which is adjacent to a region in which a liquid dome is installed, is different from the material of a membrane, which is not adjacent thereto, such that the liquefied gas storage tank can effectively respond to the thermal deformation generated during the storage of liquefied gas.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients
• B65D 90/06 - Revêtements externes, p.ex. dans un but d'isolation

Abrégé

Disclosed is an evaporated gas re-liquefaction device. The evaporated gas re-liquefaction device comprises: a plurality of compressors installed in parallel, for compressing evaporated gas discharged from a storage tank; a re-liquefaction unit for re-liquefying the evaporated gas compressed by each of the plurality of compressors; and a plurality of supply lines for providing paths through which the evaporated gas is supplied from the plurality of compressors to the re-liquefaction units and a path through which the evaporated gas moves through the re-liquefaction unit, wherein the plurality of supply lines are installed to be independent from each other so as not to meet.

Classes IPC  ?

• B63B 25/12 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées
• B63B 25/14 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées pressurisées
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 5/02 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz liquéfiés

Abrégé

A membrane welding device guide system according to the present invention comprises: an anchor strip arranged on an insulation wall which configures an insulation system of a liquefied gas storage tank; a stud integrally formed with the anchor strip, the center of the stud deviating from a welding line of the anchor strip; and a guide rail which is coupled to the stud to form a path of an automatic membrane welding device for welding a membrane to be stacked on the insulation wall. Therefore, the present invention allows membrane welding to be easily performed and allows a membrane welding device to be stably guided.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients
• B65D 90/06 - Revêtements externes, p.ex. dans un but d'isolation
• B63B 9/00 - Méthodes de tracé, de construction, d'entretien, de conversion, de radoubage, de réparation ou de détermination des caractéristiques des navires, non prévues ailleurs

Abrégé

Disclosed is a radiation shielding tube, wherein a guide tube is made of tungsten or the like, which is excellent in shielding performance, and is configured to be movable depending on various positions where a collimator is installed, so that the guide tube can effectively shield a radiation exposed during movement of a radiation source or an RT work in the tube. The radiation shielding tube has a guide tube which is disposed between a radiation source container and a collimator and connects them to each other, and the guide tube is formed in an articular form to be bendable.

Classes IPC  ?

• G21F 3/04 - Briques; Blindages faits de briques

Abrégé

Disclosed are a spudcan of an offshore structure and an ocean floor penetrating method using said spudcan. According to the present invention, in the case of a jackup rig, in order to fix the jackup rig to the ocean floor, a spudcan is used to be able to reduce or eliminate punch through occurrences that can occur during penetration of the ocean floor.

Classes IPC  ?

• B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p.ex. portant des appareils séparateurs huile-eau
• E02B 17/08 - Equipement spécialement conçu pour élever, abaisser ou immobiliser la plate-forme de travail par rapport à la structure de support pour l'élever ou l'abaisser
• E02B 17/00 - Iles artificielles montées sur pilotis ou supports similaires, p.ex. plates-formes sur pieds extensibles; Procédés de construction de celles-ci

Abrégé

An insulation system for a membrane-type storage tank, according to the present invention, comprises: a secondary insulating wall which is for insulating the inner space of a liquefied natural gas storage tank from the outside and has a bent shape so as to be provided on the corner of the liquefied natural gas storage tank; a secondary sealing wall which is stacked on the secondary insulating wall and is formed from a stainless steel material having a corrugated part; a primary insulating wall which is stacked on the secondary sealing wall and has a bent shape so as to be attached to the secondary insulating wall; and a primary sealing wall, formed from a stainless steel material, which is stacked on the primary insulating wall and has a corrugated part formed in the inward direction of the liquefied natural gas storage tank, wherein a primary insulating wall attaching means provided on the secondary insulating wall is inserted to an attachment hole provided on the primary insulating wall and thus the primary insulating wall is attached to the secondary insulating wall. Therefore, the present invention provides an insulation system structure that is appropriate even for a secondary sealing wall formed from stainless steel in a membrane-type storage tank.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• B65D 90/06 - Revêtements externes, p.ex. dans un but d'isolation

Abrégé

The present invention relates to an insulating structure for a 90° corner part of a liquefied gas cargo hold, a cargo hold having the insulating structure, and a construction method for manufacturing the cargo hold. A triangular insulating structure is provided on a 90° corner part of a cargo hold, and a 135° corner panel is provided on the inclined surface of the triangular structure. Therefore, the number of panel types is reduced and thus product management for manufacturing and installing is improved. And membrane corrugations are disposed on a 90° corner part of a cargo hold and the number of and gap between corrugation ridges can be adjusted, thereby showing structure-wise advantage with respect to ultra-low temperature heat shrinking.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• B65D 90/06 - Revêtements externes, p.ex. dans un but d'isolation

Abrégé

The present invention relates to an automatic welding system for a corrugated membrane sheet of a membrane type liquefied-gas cargo hold, a structure for guiding and fixing an automatic welding apparatus for a corrugated membrane sheet of a membrane type liquefied-gas cargo hold, and a structure for guiding an automatic welding apparatus for a corrugated membrane sheet of a membrane type liquefied-gas cargo hold. When a corrugated membrane sheet is welded, a cross-anchor strip having a fixing groove is installed on a portion where longitudinal and lateral anchor strips, which are attached to the upper surface of a heat insulating panel on which the corrugated membrane sheet is mounted, cross each other, which makes it possible to install a welding guide that supports the automatic welding apparatus and guides a movement of the automatic welding apparatus using the fixing groove, thereby stably performing automatic welding on the corrugated membrane sheet.

Classes IPC  ?

• B23K 9/00 - Soudage ou découpage à l'arc
• B23K 9/025 - Soudage de joints continus; Supports; Pièces rapportées pour des joints rectilignes
• B23K 9/095 - Surveillance ou commande automatique des paramètres de soudage
• B23K 31/12 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs à la recherche des propriétés, p.ex. de soudabilité, des matériaux
• B23K 37/02 - Chariots pour supporter l'outillage pour souder ou découper

Abrégé

A corner insulating wall for a membrane-type storage tank, according to the present invention, comprises: an insulating layer which is for insulating the inner space of a liquefied natural gas storage tank from the outside and has a bent shape so as to be provided on the corner of the liquefied natural gas storage tank; a first sealing wall attachment layer which is attached along the bent edge of the insulating layer; and a second sealing wall attachment layer which is positioned away from the first sealing wall attachment layer and is attached on the insulating layer. Therefore, a membrane-type storage tank, according to the present invention, can have a second sealing wall formed from stainless steel, cope with thermal deformation and enable easy attachment to an insulating wall.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• B65D 90/06 - Revêtements externes, p.ex. dans un but d'isolation

Abrégé

The present invention relates to an insulation structure, for a liquefied gas cargo hold, having an anchor strip removed, a cargo hold comprising the insulation structure, and a liquefied gas carrier comprising the cargo hold. A thermal protection member is substituted for an existing anchor strip, thereby effectively preventing damage on an upper insulating panel, due to a hot gas and heat transfer during welding of a membrane, by means of the thermal protection member as well as enhancing the fixing force of the membrane. The weight of a cargo hold can be reduced by means of forming the thermal protection member from a material in which aluminum foil is covered with glass cross. And by means of removing an existing SUS anchor strip, rivet processing is not required and thus constructability can be enhanced.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• B65D 90/06 - Revêtements externes, p.ex. dans un but d'isolation

Abrégé

A liquefied natural gas storage tank according to the present invention comprises: a sealing wall made from a stainless steel material in order to seal the liquefied natural gas stored in an inner space; and an insulating wall joined to the sealing wall, and provided to insulate the inner space from the outside, wherein the sealing wall has a corrugated part formed for responding to thermal deformation and the insulating wall has a groove formed to correspond to the corrugated part such that the corrugated part can be inserted therein, and thus, even though the sealing wall is formed from stainless steel, interference thereof with the insulating wall stacked thereon is not generated.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 1/12 - Récipients sous pression, p.ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables avec des moyens pour assurer une isolation thermique
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• B65D 90/06 - Revêtements externes, p.ex. dans un but d'isolation

Abrégé

A fixation apparatus of a liquefied natural gas storage tank is disclosed. A fixation apparatus of a liquefied natural gas storage tank of the present invention comprises: a primary sealing wall which contacts a liquefied natural gas and seals the liquefied natural gas in a liquid-tight manner; a primary insulation wall provided on the outer side of the primary sealing wall; and a secondary insulation wall provided on the outer side of the primary insulation wall, wherein the fixation apparatus of a liquefied natural gas storage tank comprises: an insulation wall fixation apparatus for fixing the primary insulation wall and the secondary insulation wall; and an insulation plug which is provided so as to insulate a space generated in the upper portion of the insulation wall fixation apparatus due to the installation thereof.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 1/12 - Récipients sous pression, p.ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables avec des moyens pour assurer une isolation thermique
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• F17C 13/00 - RÉCIPIENTS POUR CONTENIR OU EMMAGASINER DES GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS; GAZOMÈTRES À CAPACITÉ FIXE; REMPLISSAGE OU VIDAGE DE RÉCIPIENTS DE GAZ COMPRIMÉS, LIQUÉFIÉS OU SOLIDIFIÉS - Détails des récipients ou bien du remplissage ou du vidage des récipients
• B65D 90/06 - Revêtements externes, p.ex. dans un but d'isolation

Abrégé

A liquefied gas storage tank having insulation parts and a method for arranging the insulation parts are disclosed. Disclosed are the liquefied gas storage tank having the insulation parts and the method for arranging the insulation parts, the liquefied gas storage tank being capable of improving durability against the impact generated by liquefied gas since insulation panels, which are arranged in the insulating parts for the liquefied gas storage tank, have different densities according to: a load due to the mass of the liquefied gas stored in the liquefied gas storage tank; and the impact generated by sloshing.

Classes IPC  ?

• F17C 1/12 - Récipients sous pression, p.ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables avec des moyens pour assurer une isolation thermique
• F17C 3/02 - Récipients non sous pression assurant une isolation thermique
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur

Abrégé

A ship comprising an engine is disclosed. The ship comprising an engine comprises: a first self-heat exchanger which heat-exchanges boil-off gas discharged from a storage tank; a multi-stage compressor which compresses, in multi-stages, the boil-off gas that passed through the first self-heat exchanger after being discharged from the storage tank; a first decompressing device which expands one portion of the boil-off gas compressed by the multi-stage compressor; a second self-heat exchanger which heat-exchanges the other portion of the boil-off gas compressed by the multi-stage compressor, with the boil-off gas expanded by the first decompressing device; and a second decompressing device which expands the boil-off gas pre-cooled by the second self-heat exchanger and cooled by the first self-heat exchanger, wherein the first self-heat exchanger uses the boil-off gas discharged from the storage tank as a refrigerant for cooling the boil-off gas that passed through the second self-heat exchanger after being compressed by the multi-stage compressor.

Classes IPC  ?

• F17C 5/02 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz liquéfiés
• F17C 7/04 - Vidage des gaz liquéfiés avec changement d'état, p.ex. vaporisation
• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• F02M 25/08 - Appareils spécifiques conjugués aux moteurs pour ajouter des substances non combustibles ou de petites quantités de combustible secondaire, à l’air comburant, au combustible principal ou au mélange air-combustible ajoutant des vapeurs combustibles aspirées des réservoirs de combustible du moteur

Abrégé

A ship comprising an engine is disclosed. The ship comprising an engine comprises: a self-heat exchanger which heat-exchanges boil-off gas discharged from a storage tank; a multi-stage compressor which compresses, in multi-stages, boil-off gas that passed through the self-heat exchanger after being discharged from the storage tank; a first decompressing device which expands one portion of boil-off gas that passed through the self-heat exchanger after being compressed by the multi-stage compressor; and a second decompressing device which expands the other portion of the boil-off gas that passed through the self-heat exchanger after being compressed by the multi-stage compressor, wherein the self-heat exchanger uses boil-off gas discharged from the storage tank and boil-off gas expanded by the first decompressing device as refrigerants for cooling boil-off gas compressed by the multi-stage compressor.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés

Abrégé

Disclosed is a ship comprising a storage tank for storing a liquefied gas. A ship comprises: a boil-off gas heat exchanger which is provided downstream of a storage tank and is for heat exchanging a compressed boil-off gas (hereafter referred to as "a first fluid") by means of a boil-off gas discharged from the storage tank as a refrigerant, thereby cooling same; a compressor which is provided downstream of the boil-off gas heat exchanger and is for compressing a part of the boil-off gas discharged from the storage tank; an extra compressor which is provided downstream of the boil-off gas heat exchanger and parallel with the compressor and is for compressing the other part of the boil-off gas discharged from the storage tank; a refrigerant heat exchanger which is for additionally cooling the first fluid which has been cooled by means of the boil-off gas heat exchanger; a refrigerant decompressing device which is for expanding a second fluid, which has been sent to the refrigerant heat exchanger (a fluid sent to the refrigerant heat exchanger hereafter being referred to as "a second fluid") and cooled by means of the refrigerant heat exchanger, and then sending same back to the refrigerant heat exchanger; and a first decompressing device which is for expanding the first fluid that has been cooled by means of the boil-off gas heat exchanger and refrigerant heat exchanger, wherein the refrigerant heat exchanger heat exchanges and cools both the first fluid and second fluid by means of the boil-off gas, which has passed the refrigerant decompressing device, as a refrigerant, wherein the first fluid is either the boil-off gas which has been compressed by means of the compressor or a confluent flow of the boil-off gas compressed by means of the compressor and the boil-off gas compressed by means of the extra compressor, and the second fluid is either the boil-off gas which has been compressed by means of the extra compressor or a confluent flow of the boil-off gas compressed by means of the compressor and the boil-off gas compressed by means of the extra compressor.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux

Abrégé

Disclosed is a ship comprising a storage tank for storing a liquefied gas. A ship comprises: a boil-off gas heat exchanger which is provided downstream of a storage tank and is for heat exchanging a compressed boil-off gas (hereafter referred to as "a first fluid") by means of a boil-off gas discharged from the storage tank as a refrigerant, thereby cooling same; a compressor which is provided downstream of the boil-off gas heat exchanger and is for compressing a part of the boil-off gas discharged from the storage tank; an extra compressor which is provided downstream of the boil-off gas heat exchanger and parallel with the compressor and is for compressing the other part of the boil-off gas discharged from the storage tank; a propulsion compressor which is provided upstream of the boil-off gas heat exchanger and is for compressing the first flow supplied to the boil-off gas heat exchanger; a refrigerant heat exchanger which is for additionally cooling the first fluid which has been cooled by means of the boil-off gas heat exchanger; a refrigerant decompressing device which is for expanding a second fluid, which has been sent to the refrigerant heat exchanger (a fluid sent to the refrigerant heat exchanger hereafter being referred to as "a second fluid") and cooled by means of the refrigerant heat exchanger, and then sending same back to the refrigerant heat exchanger; and a first decompressing device which is for expanding the first fluid that has been cooled by means of the boil-off gas heat exchanger and refrigerant heat exchanger, wherein the refrigerant heat exchanger heat exchanges and cools both the first fluid and second fluid by means of the boil-off gas, which has passed the refrigerant decompressing device, as a refrigerant, wherein the first fluid is either the boil-off gas which has been compressed by means of the compressor or a confluent flow of the boil-off gas compressed by means of the compressor and the boil-off gas compressed by means of the extra compressor, and the second fluid is either the boil-off gas which has been compressed by means of the extra compressor or a confluent flow of the boil-off gas compressed by means of the compressor and the boil-off gas compressed by means of the extra compressor.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux

Abrégé

Disclosed is a ship comprising a liquefied gas storage tank. A ship comprises: a first compressor which can compress one or more parts of a boil-off gas discharged from a storage tank; a second compressor which is for compressing the other part of the boil-off gas discharged from the storage tank; a propulsion compressor which is for compressing one part of the boil-off gas that has been compressed by means of the first compressor and/or the second compressor; a first heat exchanger which is for heat exchanging the boil-off gas compressed by means of the propulsion compressor and the boil-off gas discharged from the storage tank; a refrigerant decompressing device which is for expanding the other part of the boil-off gas that has been compressed by means of the first compressor and/or the second compressor; a second heat exchanger which is for cooling, by means of a fluid expanded by means of the refrigerant decompressing device as a refrigerant, the boil-off gas that has been compressed by means of the propulsion compressor and heat exchanged by means of the first heat exchanger; an additional compressor which is for compressing the refrigerant that has passed the refrigerant decompressing device and second heat exchanger; and a first decompressing device which is for expanding the fluid that has been compressed by means of the propulsion compressor and then cooled by means of the first heat exchanger and second heat exchanger, wherein the additional compressor is driven by means of power generated from the expanding of the fluid by means of the refrigerant decompressing device.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés

Abrégé

Disclosed is a ship comprising a storage tank for storing a liquefied gas. A ship comprises: a boil-off gas heat exchanger which is provided downstream of a storage tank and is for heat exchanging a compressed boil-off gas (hereafter referred to as "a first fluid") by means of a boil-off gas discharged from the storage tank as a refrigerant, thereby cooling same; a compressor which is provided downstream of the boil-off gas heat exchanger and is for compressing a part of the boil-off gas discharged from the storage tank; a first extra compressor which is provided downstream of the boil-off gas heat exchanger and parallel with the compressor and is for compressing the other part of the boil-off gas discharged from the storage tank; a second extra compressor which is provided downstream of the boil-off gas heat exchanger and parallel with the compressor and first extra compressor and is for compressing the remaining part of the boil-off gas discharged from the storage tank; a refrigerant heat exchanger which is for additionally cooling the first fluid which has been cooled by means of the boil-off gas heat exchanger; a refrigerant decompressing device which is for expanding a second fluid, which has been sent to the refrigerant heat exchanger (a fluid sent to the refrigerant heat exchanger hereafter being referred to as "a second fluid") and cooled by means of the refrigerant heat exchanger, and then sending same back to the refrigerant heat exchanger; and a first decompressing device which is for expanding the first fluid that has been cooled by means of the boil-off gas heat exchanger and refrigerant heat exchanger, wherein the refrigerant heat exchanger heat exchanges and cools both the first fluid and second fluid by means of the boil-off gas, which has passed the refrigerant decompressing device, as a refrigerant. The first fluid is any one of the boil-off gas which has been compressed by means of the compressor, the boil-off gas which has been compressed by means of the first extra compressor, a confluent flow of the boil-off gas compressed by means of the compressor and the boil-off gas compressed by means of the first extra compressor, and a confluent flow of the boil-off gas compressed by means of the compressor, the boil-off gas compressed by means of the first extra compressor and the boil-off gas compressed by means of the second extra compressor. The second fluid is any one of the boil-off gas which has been compressed by means of the first extra compressor, the boil-off gas which has been compressed by means of the second extra compressor, a confluent flow of the boil-off gas compressed by means of the first extra compressor and the boil-off gas compressed by means of the second extra compressor, and a confluent flow of the boil-off gas compressed by means of the compressor, the boil-off gas compressed by means of the first extra compressor and the boil-off gas compressed by means of the second extra compressor.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux

Abrégé

Disclosed is a ship comprising a storage tank for storing a liquefied gas. A ship comprises: a boil-off gas heat exchanger which is provided downstream of a storage tank and is for heat exchanging a compressed boil-off gas (hereafter referred to as "a first fluid") by means of a boil-off gas discharged from the storage tank as a refrigerant, thereby cooling same; a compressor which is provided downstream of the boil-off gas heat exchanger and is for compressing a part of the boil-off gas discharged from the storage tank; an extra compressor which is provided downstream of the boil-off gas heat exchanger and parallel with the compressor and is for compressing the other part of the boil-off gas discharged from the storage tank; a refrigerant heat exchanger which is for additionally cooling the first fluid which has been cooled by means of the boil-off gas heat exchanger; a refrigerant decompressing device which is for expanding a second fluid, which has been sent to the refrigerant heat exchanger (a fluid sent to the refrigerant heat exchanger hereafter being referred to as "a second fluid") and cooled by means of the refrigerant heat exchanger, and then sending same back to the refrigerant heat exchanger; a first decompressing device which is for expanding the first fluid that has been cooled by means of the boil-off gas heat exchanger and refrigerant heat exchanger; and a third decompressing device which is for expanding a part of the first fluid which has been cooled by means of the boil-off gas heat exchanger (hereafter referred to as "a third fluid") and sending same back to the boil-off gas heat exchanger, wherein the boil-off gas heat exchanger uses the boil-off gas being discharged from the storage tank and the third fluid as a refrigerant and the refrigerant heat exchanger heat exchanges and cools both the first fluid and second fluid by means of the boil-off gas, which has passed the refrigerant decompressing device, as a refrigerant, wherein the first fluid is either the boil-off gas which has been compressed by means of the compressor or a confluent flow of the boil-off gas compressed by means of the compressor and the boil-off gas compressed by means of the extra compressor, and the second fluid is either the boil-off gas which has been compressed by means of the extra compressor or a confluent flow of the boil-off gas compressed by means of the compressor and the boil-off gas compressed by means of the extra compressor.

Classes IPC  ?

• B63B 25/16 - Installations de chargement, p.ex. pour le rangement ou l'arrimage; Navires spécialisés à cet effet pour chargement de marchandises fluides fermées isolées de la chaleur
• F17C 6/00 - Procédés ou appareils pour remplir des récipients non sous pression de gaz liquéfiés ou solidifiés
• F17C 9/02 - Procédés ou appareils pour vider les gaz liquéfiés ou solidifiés contenus dans des récipients non sous pression avec changement d'état, p.ex. vaporisation
• F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p.ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
• B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p.ex. lubrifiants, réfrigérants, carburants ou analogues
• F25J 1/00 - Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux