The present invention relates to an ammonia recovery/discharge system and a control method therefor. The ammonia recovery/discharge system of the present invention is designed for a ship using ammonia as fuel and comprises: an ammonia tank; an engine; a fuel supply unit; a fuel recovery unit; an air supply line; an air discharge line; and a working fluid circulation unit, wherein the working fluid circulation unit comprises an ejector that supplies high-pressure working fluid to circulate air or ammonia in the working fluid circulation unit.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
B63J 4/00 - Arrangements of installations for treating waste-water or sewage
A double-walled pipe ventilation system is disclosed. The double-walled pipe ventilation system includes: an engine unit including a jacket cooling circulation unit dissipating heat generated by an engine; a fuel supply unit connected to the engine unit via a double-walled pipe and supplying fuel through an inner pipe of the double-walled pipe; an air outlet line along which air is discharged from an outer pipe of the double-walled pipe; an air circulation unit circulating the air discharged along the air outlet line; and a water ejector provided to the air circulation unit and suctioning air circulated through the outer pipe using a high-pressure working fluid introduced into the water ejector.
B63J 2/06 - VentilationAir-conditioning of engine rooms
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
3.
LEAKAGE DETECTION SYSTEM OF RELIQUEFACTION SYSTEM FOR SHIP
A leakage detection system includes: a gas supply line along which boil-off gas is supplied to a compressor; a reliquefaction line along which the compressed boil-off gas is cooled and reliquefied through a heat exchanger and is returned to a storage tank; a refrigerant circulation line along which a refrigerant is circulated; a refrigerant compressor to compress the refrigerant discharged from the heat exchanger; a refrigerant expander expanding and cooling the compressed refrigerant compressed by the refrigerant compressor and having been cooled through the heat exchanger and supplying the cooled refrigerant back to the heat exchanger; and a refrigerant charge line connecting an inventory tank filled with nitrogen to an upstream side of the refrigerant compressor. Upon initial start-up or restart of a reliquefaction process, the nitrogen is supplied to the upstream side of the refrigerant compressor via the refrigerant charge line to detect leaks in the refrigerant circulation line.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
4.
MICRO-LEAK DETECTION SYSTEM OF RELIQUEFACTION SYSTEM FOR SHIP
Disclosed herein is a micro-leak detection system of a reliquefaction system for ships. The micro-leak detection system includes: a reliquefaction system reliquefying boil-off gas generated from a liquefied gas stored in a storage tank in a ship by recovering cold heat from the boil-off gas in a heat exchanger, compressing the boil-off gas, and cooling the compressed boil-gas in the heat exchanger through heat exchange with refrigerant circulated along a refrigerant circulation line; a heater heating the boil-off gas to be supplied from the storage tank to the heat exchanger through heat exchange with an antifreeze liquid; and a micro-leak detection device connected to a drain port through which a remaining liquid is drained from the heater and detecting small leaks in the heater.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
5.
ARRANGEMENT STRUCTURE OF FUEL TANK FOR CABIN OF SHIP AND ELECTRIC PROPULSION, AND SHIP COMPRISING SAME
The present invention provides an arrangement structure of a fuel tank for cabins of a ship and electric propulsion, comprising: an electric propulsion system (110) which is arranged in an engine room (111) and provides power produced by a gas turbine (112) as a propulsion force to an electric propulsion motor; a first liquefied gas storage tank (120) which is arranged in a cargo section (A) and supplies a first gas fuel to the gas turbine (112); and a second liquefied gas storage tank (130) which is arranged in a bow section (b) and supplies a second gas fuel to the gas turbine (112), to thereby secure safety and an extra space in the engine room through the arrangement of the second liquefied gas storage tank (130) in the bow.
The present invention relates to a method and device for a wired/wireless cyber security patch for a ship. As the need for the establishment of a method for updating a CBS patch for a ship and a device therefor arises, the present invention proposes the method and system for a wired/wireless cyber security patch for a ship, capable of performing a patch update in accordance with IACS UR E26 requirements.
The present invention relates to an attack surface information-based deception information generation system and method, and provides an attack surface information-based deception information generation system and method for protecting a ship by deceiving a cyber attacker attacking the ship, posing as an actual internal system of the ship, identifying a sign of attack during an early stage of attack, and responding early to the sign of attack.
The present invention relates to a system for simulating, in the configuration of a ship cybersecurity architecture, the appropriateness of control costs for suitable security controls. Presented are a security control and cost control optimization system and method, which calculate control costs according to a control policy included in selected security control; and identifying an acceptable control risk according to the control costs so as to automatically present optimal security costs, thereby enabling the determination that security standards of newly constructed companies, organizations and ships can be improved.
G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
G06F 21/55 - Detecting local intrusion or implementing counter-measures
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
G06Q 30/02 - MarketingPrice estimation or determinationFundraising
G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
The present invention presents a ship cyberattack early warning system and method, which can detect abnormal behavior through interworking with an alarm, monitoring and control system (AMS) in consideration of the environment of a ship control system, and provide early warning of a cyberattack on a ship. According to the present invention, abnormal behavior conditions of a system on a ship are generated in a crew training environment implemented on land, the behaviors and input data, of the crew, corresponding thereto are learned so that normal response actions and abnormal response actions are classified, and, on the basis of the behavior and input learning data of the crew when a cyber accident occurs at real sea, early warning can be provided if the abnormal response actions are input or abnormal behavior occurs.
G08B 5/22 - Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmissionVisible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electromagnetic transmission
G08B 3/10 - Audible signalling systemsAudible personal calling systems using electric transmissionAudible signalling systemsAudible personal calling systems using electromagnetic transmission
The present invention relates to automatic scanning test equipment for a ship's cybersecurity, and proposes automatic scanning test equipment for a ship's cybersecurity, being capable of automated cybersecurity checking on behalf of a person.
Provided is an ice-going ship. The ice-going ship comprises: a skeg part formed on the lower portion of the stern of the ship; and an echo sounder part which is provided in the skeg part, transmits an ultrasonic pulse to the seabed, receives the transmitted ultrasonic pulse when the transmitted ultrasonic pulse is reflected from the seabed and returns, and calculates the water depth of the seabed on the basis of the time it takes for the ultrasonic pulse to return.
B63B 79/15 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers for monitoring environmental variables, e.g. wave height or weather data
A boil-off gas treatment system includes: a first compressor receiving boil-off gas generated from liquefied gas stored in a storage tank of a ship and compressing the boil-off gas; a second compressor compressing boil-off gas received from the storage tank; a heat exchanger cooling the boil-off gas compressed by the first compressor or the second compressor; and a refrigerant circulation line for circulating a refrigerant to the heat exchanger. The first compressor is a multistage compressor including a plurality of compressors and compressing the boil-off gas to a fuel supply pressure required for a propulsion engine. The second compressor compresses the boil-off gas to a fuel supply pressure required for a power generation engine which is lower than the propulsion engine. The boil-off gas compressed by part of the first compressor is supplied to the heat exchanger to be cooled or is supplied to the power generation engine.
B63J 4/00 - Arrangements of installations for treating waste-water or sewage
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02M 25/08 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
13.
ECHO SOUNDER FOR POLAR SAILING SHIP, INSTALLATION STRUCTURE THEREOF, AND SHIP IN WHICH SAME IS INSTALLED
Provided is a polar sailing ship. The polar sailing ship comprises: a plow unit formed in the lower portion of the bow of the ship; and an echo sounder unit provided in the plow unit, and for transmitting an ultrasonic pulse to the seabed, receiving the returned ultrasonic pulse when the transmitted ultrasonic pulse is reflected from the seabed and returned, and calculating the depth of the seabed using the time the ultrasonic pulse took to return.
B63B 79/15 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers for monitoring environmental variables, e.g. wave height or weather data
Provided is a polar sailing ship. The polar sailing ship comprises: a keel unit formed to protrude from a lower portion of the ship; and an echo sounder unit provided in the keel unit, and for transmitting an ultrasonic pulse to the seabed, receiving a returned ultrasonic pulse when the transmitted ultrasonic pulse is reflected from the seabed and returned, and calculating the depth of the seabed using the time until the ultrasonic pulse returns.
B63B 79/15 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers for monitoring environmental variables, e.g. wave height or weather data
Disclosed herein is a gas purging system for ships having an engine fueled by fuel gas. The gas purging system includes: a fuel supply line along which fuel gas is supplied to the engine; a gas valve unit disposed on the fuel supply line to control a pressure of the fuel gas; and a purge line along which nitrogen gas is supplied to the engine to purge an interior of the engine and an interior of the fuel supply line, wherein the nitrogen gas is directly supplied to the engine along the purge line, purges the interior of the engine and the fuel supply line, and is discharged to outside atmosphere through the gas valve unit.
F02M 25/08 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
16.
SYSTEM AND METHOD FOR SUPPLYING FUEL TO AMMONIA GAS TURBINE OF SHIP
The present invention relates to a ship provided with a gas turbine using ammonia as fuel. The ammonia gas turbine fuel supply system according to the present invention comprises: a gas turbine for generating electricity by using gaseous ammonia as fuel; an ammonia storage tank for storing ammonia in a liquid state; an ammonia fuel supply unit for supplying gaseous ammonia fuel to the gas turbine; an ammonia condensation unit for condensing ammonia boil-off gas generated in the ammonia storage tank and collecting the condensed matter into the ammonia storage tank; an ammonia treatment unit for treating ammonia in purging gas generated while purging at least one of the ammonia fuel supply unit or the ammonia condensation unit; a waste heat recovery unit for generating electricity by recovering waste heat from exhaust gas discharged from the gas turbine while circulating supercritical carbon dioxide; and a heat source supply unit for supplying the ammonia fuel supply unit with heat energy or steam heat energy generated in the waste heat recovery unit.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63B 11/04 - Constructional features of bunkers or ballast tanks, e.g. with elastic walls
B63H 21/16 - Use of propulsion power plant or units on vessels the vessels being motor-driven relating to gas turbines
B63J 3/04 - Driving of auxiliaries from power plant other than propulsion power plant
F02C 3/22 - Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
F01K 25/10 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
17.
FUEL SUPPLY SYSTEM AND METHOD FOR AMMONIA GAS TURBINE OF SHIP
The present invention relates to a ship provided with a gas turbine using ammonia as fuel. A fuel supply system for an ammonia gas turbine, according to the present invention, comprises: a gas turbine that generates power by using gaseous ammonia as fuel; an ammonia fuel supply unit for supplying gaseous ammonia fuel to the gas turbine; and an ammonia treatment unit for treating ammonia in a purged gas generated while purging at least one of the gas turbine and the ammonia fuel supply unit, wherein the gaseous ammonia supplied from the ammonia fuel supply unit to the gas turbine is completely consumed in the gas turbine without any amount being recovered to the ammonia fuel supply unit.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 11/04 - Constructional features of bunkers or ballast tanks, e.g. with elastic walls
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F02C 3/22 - Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
F02C 6/20 - Adaptations of gas-turbine plants for driving vehicles
A fuel gas heating system is disclosed. The fuel gas heating system includes: an engine unit; a fuel supply unit supplying fuel gas to the engine unit; a fuel heating unit heating fuel gas to be supplied to the engine unit; a gas valve unit placed in a gas valve unit room and controlling a pressure and flow rate of fuel gas to be supplied to the engine unit; a ventilation unit disposed in the gas valve unit room to discharge air circulated through intake of outside air to outside atmosphere; a nitrogen gas supply unit pressurizing nitrogen gas generated by a nitrogen generator and supplying the pressurized nitrogen gas to the fuel heating unit; and a controller controlling the fuel gas heating system.
A ship equipped with a gas turbine and a waste heat recovery-based electric propulsion system, according to an embodiment of the present invention, enhances the efficiency of a gas turbine (142) by including a stern section (C) comprising: the gas turbine (142), disposed in an engine room (141), that generates electric power by combustion of first fuel supplied from a second fuel tank (143) or second fuel supplied from cargo tanks (TK1 to TK4) and supplies the electric power to an electric propulsion motor; the second fuel tank (143), which is disposed in an upper side free space of the engine room (141), has an upper end exposed to an upper deck (UD), and supplies the first fuel to the gas turbine (142); and a waste heat recovery system (150) that converts waste heat from exhaust gas of the gas turbine (142) into electric power and then supplies the electric power to the electric propulsion motor.
B63J 3/04 - Driving of auxiliaries from power plant other than propulsion power plant
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63B 15/00 - SuperstructuresArrangements or adaptations of masts
B63B 11/04 - Constructional features of bunkers or ballast tanks, e.g. with elastic walls
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
A VOC fuel supply system and method for supplying volatile organic compounds (VOCs) as fuel of an engine and a vessel using VOCs as fuel. The VOC fuel supply system includes: an engine operable in a gas fuel mode using a gas as fuel; a VOC supply unit supplying VOCs (Volatile Organic Compounds) as fuel to the engine; a fuel supply line connecting the VOC supply unit to the engine and defining a path for transfer of a gaseous VOC fuel from the VOC supply unit to the engine; and a drain filter provided to the fuel supply line upstream of the engine and filtering out recondensed liquid VOCs contained in the VOC fuel.
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
21.
BLOW-DOWN METHOD OF RELIQUEFACTION SYSTEM FOR SHIP
A blow-down method is applied to a reliquefaction system in which boil-off is compressed by a compressor, cooled and reliquefied through a heat exchanger, and returned to the tank after passing through a gas-liquid separator. The reliquefaction system includes a pressure compensation line extending from a downstream side of the compressor to an upside of the gas-liquid separator without passing through the heat exchanger; and a nitrogen blanket line along which nitrogen is supplied to the pressure compensation line. In the event of a trip of the reliquefaction system, nitrogen is supplied to the pressure compensation line along the nitrogen blanket line and is delivered to the downstream side of the compressor to pass through the heat exchanger along the reliquefaction line such that the heat exchanger and the reliquefaction line are blown down to remove compressed gas and reliquefied gas therefrom while being subjected to nitrogen (N2) purging.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
22.
SHIP BOIL-OFF GAS RELIQUEFACTION SYSTEM AND METHOD
Disclosed are a ship boil-off gas reliquefaction system and method. The boil-off gas reliquefaction system includes: a storage tank disposed in a ship and storing a liquefied gas; a compressor compressing boil-off gas generated from the liquefied gas; a reliquefaction apparatus reliquefying the compressed gas compressed in the compressor by cooling the compressed gas through heat exchange with a refrigerant circulating in a refrigerant circulation part; and a reliquefaction capacity controller controlling reliquefaction capacity of the reliquefaction apparatus, wherein, when a pressure value sensed at a vapor header through which the boil-off gas is discharged from the storage tank is lower than a preset low pressure value, the reliquefaction capacity controller reduces the reliquefaction capacity of the reliquefaction apparatus to maintain a pressure in the storage tank.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
23.
BOIL-OFF GAS RELIQUEFACTION SYSTEM AND METHOD FOR SHIP
A boil-off gas reliquefaction system includes: a compressor compressing boil-off gas generated from liquefied gas stored in a storage tank in a ship; a reliquefaction line connecting the compressor to the storage tank and allowing the boil-off gas to be reliquefied and returned to the storage tank therealong; a heat exchanger disposed on the reliquefaction line and cooling the boil-off gas compressed by the compressor; a separator disposed on the reliquefaction line, separating the boil-off gas cooled by the heat exchanger into a gaseous phase and a liquid phase, and supplying separated liquefied gas to the storage tank; a nitrogen blanket line along which nitrogen is supplied to an upstream side of the separator; and a bypass line branched from of the reliquefaction line downstream of the heat exchanger and connected to the storage tank without passing through the separator.
A purging system and a purging method for a boil-off gas reliquefaction apparatus for ships are disclosed. The purging system includes: a storage tank disposed in a ship to store a low-temperature liquefied gas and provided with an insulating portion including a vacuum insulation layer; a compressor compressing boil-off gas generated from the storage tank; a heat exchanger in which the compressed gas compressed in the compressor is cooled; and a refrigerant circulation line in which a refrigerant to be subjected to heat exchange with the compressed gas in the heat exchanger circulates, wherein, upon N2 purging of the reliquefaction apparatus, the purging system supplies N2 after suctioning and venting a gas from the refrigerant circulation line using a vacuum pump provided to maintain an internal vacuum state of the vacuum insulation layer of the storage tank.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
25.
METHOD AND SYSTEM FOR DEVELOPING CYBER ATTACK SCENARIO FOR SHIP
The present invention presents a method and a system for developing a cyber attack scenario for a ship, which are capable of: using a ship attack scenario model so as to visualize, through an attack graph, all paths through which an attacker can infiltrate an attack target; and capturing the range of attack technology and characteristics so as to identify a potential attack surface.
The present invention relates to a method and a system for the active or passive detection of a rogue NMEA device, whereby a normal/abnormal NMEA device can be identified on a ship network on which an NMEA gateway is installed, and a cyber attack caused by an unauthorized NMEA device on a ship can be prevented.
According to the present invention, proposed are a method for designing cyber security of a ship and a system and a method for providing a cyber security guide service using same, wherein the method for designing cyber security of a ship comprises: a storage step of storing a cyber security design database in which cyber security requirements for shipowners and ship classes and cyber security regulations and standards are reflected; a generation step of generating a new ship design cyber security process on the basis of the cyber security design database stored in the storage step; a feedback step of, when a ship is constructed through the new ship design cyber security process generated in the generation step, feeding back so that changes in an external cyber security environment, which have occurred during a ship construction period, are applied to the new ship; and a display step of visualizing and displaying, on a dashboard, activities during the ship construction period and cyber security matters provided in the feedback step.
G06F 21/55 - Detecting local intrusion or implementing counter-measures
G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog
The present invention relates to a penetration test method and apparatus for an NMEA protocol used in a ship in consideration of distinct characteristics of the ship, and presents: a ship NMEA protocol-based penetration test method and apparatus, the method comprising performing an penetration test for the NMEA protocol in a ship and simply and quickly performing the NMEA penetration test through the apparatus; and a method and an apparatus for controlling connection of a CBS in the ship.
The present invention proposes a method for measuring a cybersecurity state of a ship, and a method for evaluating a cybersecurity risk and detecting an abnormal sign of a ship, wherein risk data collected through various paths is indexed and scored according to various criteria such as a risk occurrence degree, areas are divided according to importance, such as a cabin, a bridge room, and an engine room of the ship, and a quantified risk scoring for CBS for each area is provided.
G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
30.
SYSTEM AND METHOD FOR RELIQUEFACTION OF BOIL-OFF GAS OF SHIP AND SYSTEM AND METHOD FOR TREATING OFFGAS OF RELIQUEFACTION APPARATUS
Disclosed are a system and method for reliquefaction of boil-off gas of a ship and a system and method for treating off-gas of a reliquefaction apparatus. The boil-off gas reliquefaction system includes: a compressor compressing boil-off gas generated from liquefied gas stored in an on-board storage tank; a heat exchanger cooling the boil-off gas compressed in the compressor; a refrigerant circulation line in which a refrigerant supplied to the heat exchanger circulates; a temperature raising line extending from the storage tank to the compressor; and a heater provided to the temperature raising line, wherein the heater heats the boil-off gas to a suitable input temperature of the compressor.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
31.
CARBON DIOXIDE RELIQUEFACTION SYSTEM AND CARBON DIOXIDE RELIQUEFACTION METHOD WHICH USE CLOSED CYCLE
The present invention relates to a carbon dioxide reliquefaction system and a carbon dioxide reliquefaction method which use a closed cycle. A carbon dioxide evaporation gas reliquefaction system according to the present invention comprises: an engine using a liquefied gas as fuel; a storage tank for storing liquefied carbon dioxide; an evaporation gas compressor, which compresses carbon dioxide evaporation gas evaporated in the storage tank, so as to generate a compressed evaporation gas; a first evaporation gas heat exchanger for cooling the compressed evaporation gas; and a refrigeration cycle in which a refrigerant circulates in order to provide cold energy to the first evaporation gas heat exchanger, wherein the refrigeration cycle includes a refrigerant compressor for compressing the refrigerant heated by heat exchange in the first evaporation gas heat exchanger, a refrigerant control valve for expanding the compressed refrigerant and supplying same to the first evaporation gas heat exchanger, and a second evaporation gas heat exchanger, which exchanges heat with the carbon dioxide evaporation gas evaporated in the storage tank, so as to cool the refrigerant that passed through the refrigerant control valve.
A refrigerant charging system includes: a reliquefaction system reliquefying boil-off gas generated in a liquefied gas storage tank by compressing the boil-off gas and subjecting the compressed boil-off gas to heat exchange with refrigerant supplied to a heat exchanger while circulating along a refrigerant circulation line; a buffer tank storing utility N2 to be supplied to the ship; a booster compressor receiving the utility N2 from the buffer tank, compressing the received N2, and supplying the compressed N2 to the refrigerant circulation line; and a first load-up line along which the N2 is supplied from the buffer tank to the refrigerant circulation line without passing through the booster compressor. Upon initial charging in a non-operation state of the reliquefaction system, the refrigerant circulation line is charged with refrigerant by supplying the N2 from by a pressure differential between the refrigerant circulation line and the buffer tank.
The present invention relates to a carbon dioxide evaporation gas re-liquefaction method. The carbon dioxide evaporation gas re-liquefaction method according to the present invention is characterized by comprising: a step for forming compressed evaporation gas by supplying carbon dioxide evaporation gas evaporated in a storage tank to a compressor in a carbon dioxide carrier using a dual-fuel engine; a cooling step for supplying the compressed evaporation gas to a first evaporation gas heat exchanger and cooling same through heat exchange with a refrigerant circulating in a refrigeration cycle; and a recovery step for spraying the re-liquefied carbon dioxide cooled through the cooling step into the storage tank and recovering same, wherein a second cooling step or a third cooling step is additionally performed during the cooling step according to the operation mode of the carbon dioxide carrier.
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63J 2/14 - HeatingCooling of liquid-freight-carrying tanks
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
The present invention relates to an air circulation system through a double-walled pipe. An air circulation system through a double-walled pipe according to the present invention comprises: an engine part including a jacket cooling circulation part for dissipatiing heat generated from an engine; a fuel supply part which is connected to the engine part through a double-walled pipe and supplies a fuel through an inner pipe of the double-walled pipe; an air discharge line for discharging air from an outer pipe of the double-walled pipe; an air circulation part for circulating the air discharged through the air discharge line; and a water ejector which is provided in the air circulation part and into which a high-pressure working fluid is introduced so as to suction the air circulating through the outer pipe.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
35.
Method and apparatus for purifying exhaust gas of vessel and vessel including the same
The present invention provides method and apparatus for purifying exhaust gas of a vessel and a vessel including the same, in which a risk for a vessel and crew of being exposed to ammonia gas used to collect carbon dioxide included in exhaust gas emitted from a vessel may be minimized and an ammonia solution may be recycled and reused to collect carbon dioxide, in order to satisfy regulations on discharge of exhaust gas by the IMO. Also, the present invention provides an apparatus 1000 for purifying exhaust gas of a vessel and a method of purifying exhaust gas of a vessel using the same, in which carbon dioxide and sulfur dioxide included in exhaust gas emitted from a vessel may be collected by using a reaction solution and may be changed into a substance that does not affect the environment so as to be stored and transported to land.
F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
36.
SYSTEM AND METHOD FOR RELIQUEFYING BOIL-OFF GAS OF VESSEL
A system for reliquefying boil-off gas includes: a compressor provided to the vessel and compressing boil-off gas generated in a storage tank storing liquefied gas; a reliquefaction line extending from the compressor to the storage tank and reliquefying compressed gas to deliver reliquefied gas to the storage tank; a heat exchanger provided to the reliquefaction line and receiving and cooling the compressed gas; a first refrigerant compression part compressing a refrigerant discharged from the heat exchanger after cooling the compressed gas; a second refrigerant compression part further compressing the refrigerant compressed in the first refrigerant compression part; and a refrigerant expansion part expanding and cooling the refrigerant compressed through the first and second refrigerant compression parts and supplying the refrigerant to the heat exchanger.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
37.
NITROGEN COMPRESSION SYSTEM FOR LEAKAGE TEST ON GAS PIPELINE USED FOR ENGINE AND VESSEL INCLUDING THE SAME
A nitrogen compression system for a leakage test on a gas pipeline used for an engine according to the present invention includes: a nitrogen generator which is installed on a hull and generates nitrogen; a nitrogen storage tank which stores the nitrogen generated from the nitrogen generator; an air compressor which generates compressed air used to support starting of an engine for propelling the hull and supplies the compressed air to the engine; an air supplier which supplies air to the air compressor; and a first diverter valve which is installed on a first diverter pipeline connecting the air supplier, the nitrogen storage tank, and the air compressor and is controlled to supply any one of air and nitrogen to the air compressor. When the first diverter valve is controlled to supply nitrogen to the air compressor, compressed nitrogen compressed by the air compressor is used to purge a gas pipeline connected to the engine.
Disclosed are a refrigerant cycle control system and control method for a reliquefaction system for a ship. The refrigerant cycle control system for a reliquefaction system for a ship of the present invention comprises, in the re-liquefaction system that compresses boil-off gas generated from liquefied gas in a storage tank in the ship and reliquefies the compressed gas by heat-exchanging same, in a heat exchanger, with a refrigerant circulating in a refrigerant circulation line: a refrigerant compressor that is provided in the refrigerant circulation line and compresses the refrigerant discharged after cooling the boil-off gas from the heat exchanger; a suction pressure detection unit that detects the suction pressure of the refrigerant introduced from the refrigerant circulation line to the refrigerant compressor, and transmits a current suction pressure value (PVs); a load controller that transmits a suction pressure set value (SPs) for controlling the load of the reliquefaction system; and a control unit that receives the set value, replenishes or discharges the refrigerant in the refrigerant circulation line, and adjusts the amount of cold heat in the refrigerant circulation line, wherein the control unit compares the current suction pressure value and the suction pressure set value and replenishes or discharges the refrigerant in the refrigerant circulation line by means of PID control, and if the difference between the current suction pressure value and the suction pressure set value is less than or equal to a first correction value (α) (PVs≤SPs±α), on/off control to stop refrigerant replenishment and discharge is performed first.
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
39.
SYSTEM AND METHOD FOR RE-LIQUEFYING AMMONIA BOIL-OFF GAS OF VESSEL
Disclosed are a system and a method for re-liquefying ammonia boil-off gas of a vessel. The system for re-liquefying ammonia boil-off gas of the vessel comprises: a compression unit that compresses boil-off gas in multiple stages, the compression unit including a first compressor that receives and compresses the boil-off gas generated from ammonia in a storage tank provided on the vessel, and a second compressor that further compresses the boil-off gas compressed in the first compressor; a condenser that cools the boil-off gas compressed through the compression unit; and a re-liquefied gas recovery line that transfers, to the storage tank, ammonia cooled and condensed in the condenser, wherein ammonia from the re-liquefied gas recovery line is branched and supplied to the compression unit so as to control the temperature of the boil-off gas in the compression unit.
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
Disclosed is a control system for a vessel reliquefaction system. The control system for a vessel reliquefaction system according to the present invention is for a reliquefaction system in which boil-off gas generated from a vessel storage tank is compressed in a compressor and the compressed boil-off gas is cooled by a heat exchanger and thereby reliquefied. The control system is characterized by comprising: a reliquefaction line connected from the compressor to the storage tank; a control valve that is provided downstream of the heat exchanger in the reliquefaction line and controls the flow rate of boil-off gas flowing through the reliquefaction line; a flow rate regulator that controls the opening degree of the control valve; and a load controller that transmits, to the flow rate regulator, a signal for regulating the load of the reliquefaction system. When the load of the reliquefaction system changes, the load controller regulates the load of the reliquefaction system by transmitting, to the flow rate regulator, a pre-determined set point for the flow rate of the boil-off gas at the corresponding load.
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63J 2/14 - HeatingCooling of liquid-freight-carrying tanks
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
41.
POWER-SAVING TYPE LIQUEFIED-GAS-FUEL SHIP AND METHOD FOR PROCESSING BOIL-OFF GAS FOR LIQUEFIED-GAS-FUEL SHIP
A power-saving type liquefied-gas-fuel ship includes: a liquefied gas storage tank storing liquefied gas; an engine using the liquefied gas stored in the liquefied gas storage tank or boil-off gas generated by spontaneous vaporization of the liquefied gas as fuel; a fuel feeder supplying the liquefied gas as fuel for the engine; a compressor compressing the boil-off gas to a pressure required for the engine; a heat exchanger cooling the remaining boil-off gas not supplied to the engine among the boil-off gas compressed by the compressor; a refrigerant circulation line in which the refrigerant supplied to the heat exchanger circulates; a refrigerant compressor compressing the refrigerant discharged from the heat exchanger after heat exchange in the heat exchanger; and a cold heat recovery device recovering cold heat of the liquefied gas supplied as fuel for the engine to cool the refrigerant compressed by the refrigerant compressor.
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
A ship of the present invention comprises: a cargo tank which stores liquefied gas transported as cargo of the ship; a reformer which is supplied with methane, carbon dioxide, and water and produces synthesis gas containing hydrogen and carbon monoxide; an FT process unit which is supplied with the synthesis gas produced by the reformer and converts same into liquid hydrocarbon; and a gas discharge line which is connected from the cargo tank to the reformer, wherein boil-off gas generated from the liquefied gas in the cargo tank is supplied to the reformer through the gas discharge line for the sake of production of the synthesis gas.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
C01B 3/34 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
43.
INSULATION SYSTEM FOR STAND-ALONE TYPE B LIQUEFIED GAS STORAGE TANK, DESIGN METHOD THEREOF, AND SHIP INCLUDING SAME
The present invention comprises: a liquefied gas selection step for selecting a liquefied gas; a leakage-criteria setting step for setting the leakage criteria of the liquefied gas; a shape adopting step for adopting the shape of a partial secondary barrier; a selection and evaluation step for selecting the target evaporation rate of the liquefied gas and evaluating the amount of liquefied gas leaked; a step for comparing the target evaporation rate of the liquefied gas with the amount of liquefied gas leaked; and a step for designing the shape of the partial secondary barrier; and a step for installing the partial secondary barrier.
The present invention proposes an image processing-based draft measurement system and method adopting an artificial intelligence technology, wherein an artificial intelligence technology is applied to an image obtained through a video to block an image processing error that can occur depending on a capturing angle, an image quality, a hull surface contamination condition, and the like, so as to improve the accuracy of draft measurement, a deep learning model for water plane recognition and segmentation for extraction of a draft mark edge is applied, and technologies such as a distortion correction algorithm and an edge extraction algorithm for water plane detection are applied, so that a draft value can be identified with reference to an image captured in real time.
B63B 39/12 - Equipment to decrease pitch, roll, or like unwanted vessel movementsApparatus for indicating vessel attitude for indicating draught or load
B63B 79/20 - Monitoring properties or operating parameters of vessels in operation using models or simulation, e.g. statistical models or stochastic models
The present invention comprises: a primary barrier in contact with liquefied gas; an insulating layer provided on the outer side of the primary barrier; a leakage movement passage which is positioned between the primary barrier and the insulating layer, and which has a discharge port through which liquefied gas leaking from the primary barrier moves; a leakage movement through-path, which is inserted into the insulating layer, is connected to the discharge port of the leakage movement passage, and allows the liquefied gas to pass therethrough; and a partial secondary barrier, which communicates with the inside of the leakage movement through-path and is formed as a pipe, wherein, if gas leaks from the primary barrier, all of the leaked liquefied gas is vaporized when the gas passes through the pipe-shaped partial secondary barrier.
The present invention relates to a fuel gas heating system. The fuel gas heating system, according to the present invention, comprises: an engine unit; a fuel supply unit that supplies fuel gas to the engine unit; a fuel heating unit that heats the fuel gas supplied to the engine unit; a gas valve unit that is provided in a gas valve unit room and controls the pressure and flow rate of the fuel gas supplied to the engine unit; an external air discharge unit that discharges external air that was sucked in for air circulation within the gas valve unit room; a nitrogen gas supply unit that generates, pressurizes, and supplies nitrogen from a nitrogen generator; and a control unit that controls the fuel gas heating system.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 41/22 - Safety or indicating devices for abnormal conditions
F17C 9/00 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
The present invention relates to a gas purging system for a ship having an engine that uses fuel gas, the system comprising: a fuel supply line for supplying fuel gas to the engine; a gas valve unit installed on the fuel supply line to control the pressure of the fuel gas; a purging line for supplying nitrogen gas to the engine so as to purge the interior of the engine and the interior of the fuel supply line, wherein the nitrogen gas supplied through the purging line is supplied directly to the engine to purge the interior of the engine and the fuel supply line and then is discharged to the outside through the gas valve unit.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
48.
REFRIGERANT CYCLE PRESSURE CONTROL SYSTEM FOR RELIQUEFACTION SYSTEM FOR SHIP
A refrigerant cycle pressure control system includes: a heat exchanger cooling boil-off gas received from a storage tank; a refrigerant cycle including a refrigerant circulation line, a refrigerant compressor, and an expander; an inventory tank storing the refrigerant to be charged to the refrigerant cycle; a refrigerant supply line connecting the inventory tank to an upstream side of the refrigerant compressor to replenish the refrigerant cycle with the refrigerant; a refrigerant discharge line connecting a downstream side of the refrigerant compressor to the inventory tank to discharge the refrigerant from the refrigerant cycle to the inventory tank; and a pressure regulation line branched off of the refrigerant discharge line. The refrigerant cycle is depressurized by discharging the refrigerant from the refrigerant cycle through the refrigerant discharge line or the pressure regulation line.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
The present invention relates to: a volatile organic compound (VOC) fuel supply system and a method for supplying VOCs as fuel for an engine; and a ship using VOCs as fuel. The VOC fuel supply system according to the present invention comprises: an engine which can be operated in a gas fuel mode using a gas as fuel; a VOC supply part which supplies VOCs as fuel to the engine; a fuel supply line which connects the VOC supply part to the engine and is the path through which gaseous VOC fuel is transported from the VOC supply part to the engine; and a drain filter which is provided in the fuel supply line and by which re-condensed liquid VOCs contained in the VOC fuel are filtered out upstream of the engine.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 25/08 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02M 25/08 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
50.
Boil-off gas reliquefaction system and method of discharging lubricant oil from boil-off gas reliquefaction system
Disclosed is a method of discharging lubricant oil from a BOG reliquefaction system configured to reliquefy BOG by compressing the BOG by a compressor, cooling the compressed BOG through heat exchange with non-compressed BOG by a heat exchanger, and reducing a pressure of fluid cooled through heat exchange by a pressure reducer. In the lubricant oil discharge method, the compressor comprises at least one oil-lubrication type cylinder and it is determined that it is time to discharge condensed or solidified lubricant oil, if at least one of preset conditions is satisfied.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, which are capable of constantly maintaining a concentration of a greenhouse gas absorbing liquid to prevent a decrease in absorption performance of an absorption tower, and applying a pressurization system to prevent the loss of an absorbent liquid due to the natural evaporation of a high-concentration absorbent liquid. Or which are capable of cooling exhaust gas with fresh water by a heat exchange method, thereby preventing a decrease in concentration of an absorbent liquid, and controlling the concentration of the absorbent liquid to constantly maintain the concentration of the absorbing liquid, thereby preventing a decrease in absorption performance.
F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
52.
APPARATUS FOR REDUCING GREENHOUSE GAS EMISSION IN VESSEL AND VESSEL INCLUDING THE SAME
The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, in which an absorbent liquid recycling unit is provided in two or more stages so that an unreacted aqueous ammonium salt solution remaining in ammonia water is removed to maintain a concentration of ammonia water at a certain level, thereby increasing a recovery rate of an absorbent liquid and preventing a deterioration in greenhouse gas absorption performance. Or in which exhaust gas is cooled by a heat exchange method, thereby preventing a decrease in a concentration of an absorbent liquid, and an absorbent liquid recycling unit is provided in two or more stages so that an unreacted aqueous ammonium salt solution remaining in ammonia water is removed, thereby increasing a recovery rate of the absorbent liquid and preventing a deterioration in greenhouse gas absorption performance.
B01D 53/96 - Regeneration, reactivation or recycling of reactants
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
B63J 4/00 - Arrangements of installations for treating waste-water or sewage
F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
53.
APPARATUS FOR REDUCING GREENHOUSE GAS EMISSION IN VESSEL AND VESSEL INCLUDING THE SAME
The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, in which CO2 absorbed by taking only a part of the absorbent liquid used when collecting CO2 is removed, so that the device sizes of an absorbent liquid recycling unit and an absorbent liquid circulating unit is kept small and continuous operation is enabled. Or in which exhaust gas is cooled by a heat exchange method, thereby preventing the decrease in a concentration of an absorbent liquid, and CO2 absorbed by taking only a part of the absorbent liquid used when collecting CO2 is removed and an unreacted absorbent liquid is continuously circulated, thereby enabling continuous operation.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
54.
Apparatus for reducing greenhouse gas emission in vessel cooperated with exhaust gas recirculation and vessel including the same
2, which is the representative greenhouse gas, are absorbed and converted into materials that do not affect environments, and the materials are discharged or stored as useful materials, thereby preventing corrosion of an engine and improving combustion efficiency.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
F02M 26/05 - High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
F02M 26/28 - Layout, e.g. schematics with liquid-cooled heat exchangers
F02M 26/34 - Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
F02M 26/35 - Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
F02M 26/36 - Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for adding fluids other than exhaust gas to the recirculation passageArrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with reformers
F02M 26/37 - Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with temporary storage of recirculated exhaust gas
55.
Apparatus for reducing greenhouse gas emission in vessel cooperated with exhaust gas recirculation and intelligent control by exhaust recycling and vessel including the same
x are absorbed and converted into materials that do not affect environments, thereby preventing corrosion of an engine, improving combustion quality, increasing engine efficiency by iCER, and reducing methane slip.
F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
B01D 53/78 - Liquid phase processes with gas-liquid contact
B01D 53/92 - Chemical or biological purification of waste gases of engine exhaust gases
C02F 1/66 - Treatment of water, waste water, or sewage by neutralisationTreatment of water, waste water, or sewage pH adjustment
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
F02B 75/02 - Engines characterised by their cycles, e.g. six-stroke
F02M 26/15 - Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
F02M 26/28 - Layout, e.g. schematics with liquid-cooled heat exchangers
F02M 26/34 - Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
F02M 26/35 - Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
56.
Apparatus for reducing greenhouse gas emission in vessel and vessel including the same
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
06 - Common metals and ores; objects made of metal
12 - Land, air and water vehicles; parts of land vehicles
Goods & 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
06 - Common metals and ores; objects made of metal
12 - Land, air and water vehicles; parts of land vehicles
Goods & 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
Disclosed is a BOG reliquefaction system. The BOG reliquefaction system includes: a compressor compressing BOG; a heat exchanger cooling the BOG compressed by the compressor through heat exchange using BOG not compressed by the compressor as a refrigerant; a pressure reducer disposed downstream of the heat exchanger and reducing a pressure of fluid cooled by the heat exchanger; and a second oil filter disposed downstream of the pressure reducer, wherein the compressor includes at least one oil-lubrication type cylinder and the second oil filter is a cryogenic oil filter.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
F17C 13/00 - Details of vessels or of the filling or discharging of vessels
60.
BOIL-OFF GAS RELIQUEFACTION METHOD AND SYSTEM FOR LNG VESSEL
Disclosed herein is a BOG reliquefaction system for LNG vessels. The BOG reliquefaction system includes a compressor compressing BOG, a heat exchanger cooling the compressed BOG by exchanging heat between the compressed BOG and BOG used as a refrigerant, and an expansion unit for expanding the BOG having been cooled by the heat exchanger, wherein the heat exchanger includes a core, in which heat exchange between a hot fluid and a cold fluid occurs, the core including a plurality of diffusion blocks, and a fluid diffusion member diffusing a fluid introduced into the core or a fluid discharged from the core.
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
Disclosed herein are a fuel supply system for ships and a fuel supply method using the same. The fuel supply method includes: 1) supplying an excess amount of liquefied gas as fuel to an incompressible fluid-fueled engine (E); 2) cooling unconsumed fuel discharged from the engine (E) through heat exchange with liquefied gas discharged from a storage tank (T); 3) returning the unconsumed fuel discharged from the engine (E) and having been cooled through heat exchange in step 2) to the storage tank (T); and 4) supplying the liquefied gas discharged from the storage tank (T) and having been used as refrigerant for heat exchange in step 2) to the engine (E). The fuel supply method can prevent cavitation in the engine (E) by supplying the excess amount of liquefied gas sufficient to accommodate variation in load of the engine (E) as fuel to the engine (E).
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
B63B 25/14 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed pressurised
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
The present invention provides a fuel supply system, for an eco-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.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63H 21/14 - Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
63.
Heat insulation structure for corner parts of liquefied natural gas storage tank
A heat insulation structure for corner parts of a liquefied natural gas (LNG) storage tank includes a secondary insulation wall arranged on an inner wall of a hull, a secondary sealing wall disposed on the secondary insulation wall, a primary insulation wall arranged on the secondary sealing wall, and a primary sealing wall disposed on the primary insulation wall. The heat insulation structure includes a corner assembly finishing an edge of the primary sealing wall at a corner part of the storage tank to complete sealing of the storage tank. The corner assembly includes an endcap sheet finishing each of four corners of the primary sealing wall provided to each surface of the storage tank to seal the four corners. The endcap sheet includes an endcap corrugation and an elongated corrugation extending in a direction perpendicular to a direction in which the endcap corrugation extends.
An insulating wall fixing device for liquefied natural gas storage tanks includes: a base socket; and a securing stud inserted into the base socket. The base socket is formed on an upper surface thereof with an insertion hole through which the securing stud is inserted into the base socket and has an interior space in which one end of the securing stud is settled. The securing stud includes an insertion portion inserted into the interior space of the base socket through the insertion hole and a fastening portion protruding from the insertion portion outwardly of the base socket. The insertion portion includes a spherical shape and multiple leg members divided by a groove formed from one end of the insertion portion to the other end of the insertion portion. The multiple leg members of the insertion portion are retracted toward the groove.
An insulation structure of a membrane type storage tank is disclosed. The membrane type storage tank includes 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.
Disclosed is a membrane type insulation system for LNG carrier cargo tank and liquefied gas fuel container wherein a corrugation finishing membrane formed of Invar steel is welded to a secondary membrane connecting portion or a primary membrane connecting portion in order to seal corrugations at a corner portion of a cargo tank in a structure wherein at least one of a primary membrane and a secondary membrane is formed of an SUS material having corrugations, thereby improving work efficiency while reducing manufacturing costs through elimination of a separate angled piece for connection between corrugations on adjacent walls at the corner portion.
In a membrane type heat insulation system for a cryogenic liquefied gas carrier cargo tank and a liquefied gas fuel container, 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.
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63B 3/68 - PanellingsLinings, e.g. for insulating purposes
F17C 3/06 - Vessels not under pressure with provision for thermal insulation by insulating layers on the inner surface, i.e. in contact with the stored fluid
F17C 3/02 - Vessels not under pressure with provision for thermal insulation
Disclosed is a BOG reliquefaction system. The BOG reliquefaction system includes: a compressor compressing BOG; a heat exchanger cooling the BOG compressed by the compressor through heat exchange using BOG discharged from a storage tank as a refrigerant; a bypass line through which the BOG is supplied to the compressor after bypassing the heat exchanger; a second valve disposed on a second supply line through which the BOG used as the refrigerant in the heat exchanger is supplied to the compressor, the second valve regulating a flow rate of fluid and opening/closing of the second supply line; and a pressure reducer disposed downstream of the heat exchanger and reducing a pressure of fluid cooled by the heat exchanger, wherein the compressor includes at least one oil-lubrication type cylinder and the bypass line is joined to the second supply line downstream of the second valve.
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
Disclosed is a method of discharging lubricant oil from a BOG reliquefaction system configured to reliquefy BOG by compressing the BOG by a compressor, cooling the compressed BOG through heat exchange with non-compressed BOG by a heat exchanger, and reducing a pressure of fluid cooled through heat exchange by a pressure reducer. In the lubricant oil discharge method, the compressor comprises at least one oil-lubrication type cylinder and it is determined that it is time to discharge condensed or solidified lubricant oil, if at least one of preset conditions is satisfied.
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63B 79/10 - Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 13/02 - Special adaptations of indicating, measuring, or monitoring equipment
70.
Membrane finishing sheet and membrane insulation structure comprising the same
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.
Disclosed is a re-liquefying device using a boil-off gas as a cooling fluid so as to reliquefy 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 multi-stage compression unit for compressing 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 exchange heat; a vaporizer for heat exchanging the boil-off gas cooled by 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 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 the same.
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 multi-stage compression unit for compressing 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 exchange heat; a vaporizer for heat exchanging the boil-off gas cooled by 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 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 the same.
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 installed on the first and second surfaces so as to thermally insulate the storage tank; a bonding panel installed on the boundary portion between the first and second surfaces together with the planar portion panel; a first membrane 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 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.
A BOG reliquefaction system includes: a compressor; a heat exchanger cooling the BOG compressed by the compressor through heat exchange using BOG not compressed by the compressor; a pressure reducer disposed downstream of the heat exchanger and reducing a pressure of fluid cooled by the heat exchanger; and a combination of a first temperature sensor disposed upstream of a cold fluid channel of the heat exchanger and a fourth temperature sensor disposed downstream of a hot fluid channel of the heat exchanger, combination of a second temperature sensor disposed downstream of the cold fluid channel of the heat exchanger and a third temperature sensor disposed upstream of the hot fluid channel of the heat exchanger, or combination of a first pressure sensor disposed upstream of the hot fluid channel of the heat exchanger and a second pressure sensor disposed downstream of the hot fluid channel of the heat exchanger.
F17C 9/00 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
Disclosed is a BOG reliquefaction system. The BOG reliquefaction system includes: a compressor compressing BOG; a heat exchanger cooling the BOG compressed by the compressor through heat exchange using BOG not compressed by the compressor as a refrigerant; a pressure reducer disposed downstream of the heat exchanger and reducing a pressure of fluid cooled by the heat exchanger; and a second oil filter disposed downstream of the pressure reducer, wherein the compressor includes at least one oil-lubrication type cylinder and the second oil filter is a cryogenic oil filter.
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
F17C 13/00 - Details of vessels or of the filling or discharging of vessels
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
76.
System for circulating air through double pipes for supplying gas and air circulation method using same
A system for circulating air through double pipes for supplying gas, includes 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. Rather than circulating air through the outer pipe of the double pipes by a fan, air can be circulated through the double pipes for gas supply by a simpler structure and more effective configuration.
F16L 59/06 - Arrangements using an air layer or vacuum
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
F17C 13/12 - Arrangements or mounting of devices for preventing or minimising the effect of explosion
F17D 5/00 - Protection or supervision of installations
F17D 5/04 - Preventing, monitoring, or locating loss by means of a signalling fluid enclosed in a double wall
77.
BOIL-OFF GAS RELIQUEFACTION SYSTEM AND METHOD FOR SHIP AND METHOD FOR STARTING BOIL-OFF GAS RELIQUEFACTION SYSTEM FOR SHIP
Disclosed is a boil-off gas reliquefaction system for vessels. The BOG reliquefaction system for vessels includes: a multistage compressor compressing BOG; a heat exchanger cooling the BOG compressed by the multistage compressor through heat exchange using BOG not compressed by the multistage compressor as a refrigerant; a pressure reducer disposed downstream of the heat exchanger and decompressing a fluid cooled by the heat exchanger; and a bypass line through which BOG is supplied to the multistage compressor after bypassing the heat exchanger.
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
A system for reliquefying a boil off gas generated in a storage tank includes a first compressor compressing a partial amount (hereinafter, referred to as ‘fluid a’) of boil off gas discharged from the storage tank, a second compressor compressing another partial amount (hereinafter, referred to as ‘fluid b’) of boil off gas discharged from the storage tank, a second expanding unit expanding a partial amount (hereinafter, referred to as ‘fluid c’) of a flow formed as the fluid a and the fluid b join, a heat-exchanger cooling another partial amount (hereinafter, referred to as ‘fluid d’) of the flow formed as the fluid a and the fluid b join, and a first expanding unit expanding the fluid d cooled by the heat-exchanger, wherein the heat-exchanger heat-exchanges the fluid d with the fluid c as a coolant expanded by the second expanding unit to cool the fluid d.
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63J 99/00 - Subject matter not provided for in other groups of this subclass
Disclosed is a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatus further includes a safety valve configured to release a part of liquefied natural gas contained in the tank when a vapor pressure of liquefied natural gas within the tank becomes higher than a cut-off pressure. The cut-off pressure is from about 0.3 bar to about 2 bar.
Disclosed herein is a BOG reliquefaction method for LNG ships. The BOG reliquefaction method for LNG ships includes: 1) compressing BOG; 2) cooling the BOG compressed in Step 1) through heat exchange between the compressed BOG and a refrigerant using a heat exchanger; 3) expanding the BOG cooled in Step 2); and 4) stably maintaining reliquefaction performance regardless of change in flow rate of the BOG compressed in Step 1) and supplied to the heat exchanger to be used as a reliquefaction target.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 5/00 - Arrangements of cold-exchangers or cold-accumulators in separation or liquefaction plants
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02B 43/00 - Engines characterised by operating on gaseous fuelsPlants including such engines
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02M 21/06 - Apparatus for de-liquefying, e.g. by heating
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
B63J 99/00 - Subject matter not provided for in other groups of this subclass
F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
Disclosed is a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatus further includes a safety valve configured to release a part of liquefied natural gas contained in the tank when a vapor pressure of liquefied natural gas within the tank becomes higher than a cut-off pressure. The cut-off pressure is from about 0.3 bar to about 2 bar.
An apparatus for reliquefaction of boil-off gas for 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; 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.
A ship comprises: a tank; a multistage 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 the multistage compressor, with the boil-off gas discharged from the storage tank and thus cooling the same; a first decompressing device for expanding a flow (“flow a1”) partially branched from the flow (“flow a”) that has been cooled by the first heat exchanger; a third heat exchanger for heat exchanging, by “flow a1” which has been expanded by the first decompressing device as a refrigerant, the remaining flow (“flow a2”) of “flow a” after excluding “flow a1” that has been branched and thus cooling the same; and a second decompressing device for expanding “flow a2” which has been cooled by the third heat exchanger.
A ship comprises: a liquefied gas storage tank; 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 the multi-stage compressor, and thus cooling same; a first decompressing device for expanding a flow (“flow a1”) partially branched from the flow (“flow a”) that has been cooled by the second heat exchanger; a third heat exchanger for heat exchanging, by “flow a1” which has been expanded by the first decompressing device as a refrigerant, the remaining flow (“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 the third heat exchanger.
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
A vessel includes an engine; 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.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F17C 9/00 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
B63B 25/14 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed pressurised
B63J 2/14 - HeatingCooling of liquid-freight-carrying tanks
A 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.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
F17C 9/00 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
B63B 25/14 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed pressurised
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
A vessel includes 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 a storage tank, 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. 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.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
F17C 7/04 - Discharging liquefied gases with change of state, e.g. vaporisation
88.
Insulation structure, for liquefied gas cargo hold, having anchor strip removed, cargo hold comprising insulation structure, and liquefied gas carrier comprising cargo hold
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 cloth. And by means of removing an existing SUS anchor strip, rivet processing is not required and thus constructability can be enhanced.
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.
A ship comprises an engine; 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.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F17C 5/02 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with liquefied gases
F17C 7/04 - Discharging liquefied gases with change of state, e.g. vaporisation
B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
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.
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
A ship including a storage tank for storing a liquefied gas includes: a boil-off gas (BOG) heat exchanger installed on a downstream of a storage tank and heat-exchanges a compressed BOG (“a first fluid”) by a BOG discharged from the storage tank as a refrigerant, to cool the BOG; a compressor installed on a downstream of the BOG heat exchanger and compresses a part of the BOG discharged from the storage tank; an extra compressor installed on a downstream of the BOG heat exchanger and in parallel with the compressor and compresses the other part of the BOG discharged from the storage tank; a refrigerant heat exchanger which additionally cools the first fluid cooled by the BOG heat exchanger; and a refrigerant decompressing device which expands a second fluid sent to the refrigerant heat exchanger, and then sends the second fluid back to the refrigerant heat exchanger.
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
A ship includes: a boil-off gas heat exchanger installed on a downstream of a storage tank and heat-exchanges a compressed boil-off gas (“a first fluid”) by a boil-off gas discharged from the storage tank as a refrigerant, to cool the boil-off gas; a compressor installed on a downstream of the boil-off gas heat exchanger and compresses a part of the boil-off gas discharged from the storage tank; an extra compressor installed on a downstream of the boil-off gas heat exchanger and in parallel with the compressor and compresses the other part of the boil-off gas discharged from the storage tank; a refrigerant heat exchanger which additionally cools the first fluid which is cooled by the boil-off gas heat exchanger; and a refrigerant decompressing device which expands a second fluid, which is sent to the refrigerant heat exchanger, and then sends the second fluid back to the refrigerant heat exchanger.
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63J 99/00 - Subject matter not provided for in other groups of this subclass
A ship including a liquefied gas storage tank includes: first and second compressors which compresse a boil-off gas discharged from a storage tank; a boost compressor which compresses one part of the boil-off gas that is compressed by at least any one of the first compressor and/or the second compressor; a first heat exchanger which heat exchanges the boil-off gas compressed by the boost compressor and the boil-off gas discharged from the storage tank; a refrigerant decompressing device which expands the other part of the boil-off gas that is compressed by at least any one of the first compressor and/or the second compressor; a second heat exchanger which cools, by a fluid expanded by the refrigerant decompressing device as a refrigerant; and an additional compressor which is compresses the refrigerant that passes through the refrigerant decompressing device and second heat exchanger.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B61J 99/00 - Subject matter not provided for in other groups of this subclass
B63J 99/00 - Subject matter not provided for in other groups of this subclass
A ship includes: a boil-off gas heat exchanger which is installed on a downstream of a storage tank and heat-exchanges a compressed boil-off gas (“a first fluid”) by a boil-off gas discharged from the storage tank as a refrigerant to cool the boil-off gas; a compressor installed on a downstream of the boil-off gas heat exchanger and compresses a part of the boil-off gas from the storage tank; an extra compressor which is installed on a downstream of the boil-off gas heat exchanger and in parallel with the compressor and compresses the other part of the boil-off gas from the storage tank; a refrigerant heat exchanger which additionally cools the first fluid; and a refrigerant decompressing device which expands a second fluid, which is sent to the refrigerant heat exchanger, and then sends the second fluid back to the refrigerant heat exchanger.
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63J 99/00 - Subject matter not provided for in other groups of this subclass
A ship includes: a boil-off gas heat exchanger which heat-exchanges a compressed boil-off gas (“a first fluid”) by means of a boil-off gas discharged from the storage tank as a refrigerant; a compressor installed on the downstream of the boil-off gas heat exchanger and compressing a part of the boil-off gas discharged from the storage tank; first and second extra compressors provided in parallel with the compressor on the downstream of the boil-off gas heat exchanger and compressing the other part of the boil-off gas discharged from the storage tank; a refrigerant heat exchanger which additionally cools the first fluid cooled by means of the boil-off gas heat exchanger; a refrigerant decompressing device which expands a second fluid, which has been sent to the refrigerant heat exchanger and cooled by means of the refrigerant heat exchanger, and then sending the expanded second fluid back to the refrigerant heat exchanger.
F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
B63J 99/00 - Subject matter not provided for in other groups of this subclass
Disclosed are a fuel supply system and method for a ship engine. The fuel supply system for a ship engine of the present invention comprises: a submersible pump which is provided to an LNG storage tank of a ship for supplying LNG to the engine of the ship; a high-pressure pump which has the LNG supplied thereto from the submersible pump and pressurizes the same under high pressure; and a return flow channel which, at the upstream of the high-pressure pump, returns the LNG to the LNG storage tank, wherein the flow of the LNG returning through the return flow channel is controlled, and the temperature of the LNG is controlled at the front end of the high-pressure pump.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
A container ship and a layout structure thereof are disclosed. In the layout structure of the container ship of the present invention, an engine room, in which a propulsion engine receiving LNG as fuel is provided, is disposed under a main deck at the stern of the container ship, an LNG storage tank storing the LNG is disposed in a cargo hold adjacent to the engine room, a fuel supply part for receiving the LNG from the LNG storage tank and supplying the LNG to the propulsion engine is disposed right above the LNG storage tank inside the cargo hold, and a void space isolating the LNG storage tank and the fuel supply part from each other is disposed therebetween.
B63B 25/08 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid
B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
Provided is a locking apparatus for a damping device of a moonpool, which can automatically lock and unlock an opened state of the damping device of the moonpool. The locking apparatus includes: one or more first locking members installed in a sidewall of the moonpool; one or more second locking members installed in a side of the damping device; and a holding unit separably holding the first locking members and the second locking members when the damping devices are in the opened state.
Disclosed are a system and method for controlling fuel supply to an engine for ships. The system for controlling fuel supply to an engine for ships includes: a system operating zone in which LNG is pumped by a pump and gasified; and a supply operating zone receiving the pumped and gasified LNG from the system operating zone and supplying the LNG to the engine, wherein a preset pressure of the system operating zone is set to be higher than that of the supply operating zone.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02M 21/06 - Apparatus for de-liquefying, e.g. by heating
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F02D 33/00 - Non-electrical control of delivery of fuel or combustion-air, not otherwise provided for
