A system for high-pressure treatment comprising a high-pressure vessel (12) having a high-pressure cylinder provided with coaxial first and second end closures (20a, 20b). A surrounding force-absorbing frame is provided for resisting outward axial movement of the first and second end closures (20a, 20b) when closed during operation. A first and a second closure manipulator is arranged to open and close a respective end closure (20a, 20b). Further, at least one pressure intensifier unit (54) is connected to the pressure vessel (12) via a respective at least one tube extending through the first and/or second end closure via a respective through passage. The pressure intensifier units (54) are configured to increase the pressure inside the pressure vessel by feeding pressure medium into the pressure vessel (12) via the at least one tube during a pressurizing phase. The pressure intensifier unit (54) is arranged to move in a longitudinal direction of the pressure vessel (12) in response to an axial movement of the first end closure and/or second end closure (20a, 20b).
A23L 3/015 - Conservation des aliments ou produits alimentaires, en général, p.ex. pasteurisation ou stérilisation, spécialement adaptée aux aliments ou produits alimentaires par un traitement utilisant une variation de pression, une secousse, une accélération ou un cisaillement
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
2.
PRESSING ARRANGEMENT WITH A COMBINED FAN AND EJECTOR COOLING, AND METHOD OF PRESSING
The present invention relates to an arrangement (100) for treatment of articles by hot pressing. The pressing arrangement for treatment of articles by hot pressing comprises a pressure vessel (1) including: a furnace chamber (18) comprising a heat insulated casing and a furnace adapted to hold the articles. A load compartment (19) is arranged with at least one top opening and at least one bottom opening, wherein a flow of pressure medium through the load compartment is allowed. Furthermore, a fan (30) for circulating the pressure medium within the furnace chamber and for enhancing an inner convection loop is arranged at the load compartment, in which inner convection loop pressure medium has an upward flow through the load compartment and a downward flow along a peripheral portion of the furnace chamber. At least one flow generator (31) is arranged for generating a flow of pressure medium into the load compartment downstream the fan to enhance the inner convection loop, the flow being generated by transporting pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion and injecting the pressure medium into the load compartment downstream the fan to enhance the inner convection loop.
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
3.
ARRANGEMENT AND METHOD FOR HANDLING A LOAD FOR ISOSTATIC PRESSURE TREATMENT
There is provided an arrangement and a method for handling a load for isostatic pressure treatment in a high-pressure arrangement. The arrangement comprises a transportation unit comprising at least one track for transporting the load into a treatment position for isostatic pressure treatment of the load from a working space outside the high-pressure arrangement. Furthermore, the transportation unit is further arranged for transporting the load from the treatment position to the working space after pressure treatment of the load. The arrangement further comprises a partition plane arranged at least partially above the high-pressure arrangement, wherein the working space is provided above the partition plane. The partition plane is arranged to shield the working space from the high-pressure arrangement in the event of a gas leakage of the high-pressure arrangement.
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
The present invention relates to an arrangement for treatment of articles by hot isostatic pressing. The pressing arrangement for treatment of articles by hot pressing comprises a pressure vessel including: a furnace chamber comprising a heat insulated casing and a furnace adapted to hold the articles. The furnace chamber is at least partly encompassed by at least one substantially cylindrical heat insulating portion. The substantially cylindrical heat insulating portion comprises a supporting structure and an insulating layer provided on said supporting structure. A number of slits having a vertical extension over at least a part of said supporting structure is arranged in the supporting structure. In preferred embodiments of the present invention, vertically elongated segments separated by respective slits having smaller curvature than a substantially cylindrical upper portion of the heat insulating portion are arranged in the supporting structure.
B01J 3/04 - Récipients sous pression, p. ex. autoclaves
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
The present invention relates to an arrangement for treatment of articles by hot isostatic pressing. The pressing arrangement for treatment of articles by hot pressing comprises a pressure vessel including: a furnace chamber comprising a heat insulated casing and a furnace adapted to hold the articles. The furnace chamber is at least partly encompassed by at least one substantially cylindrical heat insulating portion. The substantially cylindrical heat insulating portion comprises a supporting structure and an insulating layer provided on said supporting structure. The supporting structure is provided with a number of slits separated by segments having a vertical extension over at least a part of said supporting structure. The segments are movably attached to support means allowing them to move back and forth in a radial direction.
B01J 3/04 - Récipients sous pression, p. ex. autoclaves
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
The present invention relates to a pressing arrangement for treatment of articles by hot pressing and in particular to a pressing arrangement for hot isostatic pressing of containers holding substances. The method comprises: placing containers including the substance in a load compartment in the furnace and loading a pressure medium into the pressure vessel and substantially all pressure medium flowing out from the furnace chamber (18) passes at least one substance capturing module, which may include the walls of the guiding passage, at least one condensation element (35) in the guiding passage, filters (41, 43) arranged in the guiding passage, before making contact with the pressure vessel including the top and bottom closures (8, 9).
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
B30B 15/00 - Parties constitutives des presses ou accessoires de pressesMesures auxiliaires prises en rapport avec le pressage
The present invention relates to an arrangement for treatment of articles by hot pressing and, in particular, by hot isostatic pressing. In particular, the present invention relates to a pressing arrangement for treatment of articles by hot pressing, and preferably hot isostatic pressing, capable of providing a controlled, rapid cooling rate. The pressing arrangement comprises a pressure vessel including a furnace chamber comprising a heat insulated casing and a furnace adapted to hold the articles. At least one cooling circuit is arranged on an outside of the pressure vessel, the cooling circuit comprising a coolant and being arranged to enable the coolant to flow along a central portion of an outer wall of the pressure vessel. The pressure vessel is arranged with a non-uniform wall thickness, where the vessel wall is thickest at upper and lower end portions of the pressure vessel.
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
The present invention relates to a pressure vessel and a pressing arrangement comprising such a pressure vessel, for use at high-pressure pressing. The pressure vessel comprises a pressure chamber arranged for accommodating a pressure medium is provided. The pressure vessel comprises one or several cylinder segment/segments arranged to form a pressure vessel cylinder surrounding the pressure chamber, whereby a joint is formed at adjacent longitudinal edges of the cylinder segment/ segments. Prestressing means are provided around an outer envelope surface of the pressure vessel cylinder for radially prestressing the pressure vessel cylinder. Each joint at adjacent edges of the cylinder segment or segments has a continuous extension along the longitudinal length of the pressure vessel cylinder.
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
A high-pressure piston compressor (1) for compressing gas, comprising a vessel (4) having a vessel chamber (8, 23) wherein a piston (3) is guided reciprocally, for compressing a gas in the vessel chamber during operation of the piston compressor, an inlet valve housing (17, 29) comprising an inlet valve(18, 30), and an outlet valve housing (15, 31) comprising an outlet valve (16, 32), wherein the inlet valve housing and the outlet valve housing are mounted within a portion of the vessel chamber wall (14, 28), and wherein the portion of the vessel chamber wall encloses the inlet valve housing and the outlet valve housing, such that the portion of the vessel chamber wall generates an isostatic counter-pressure on the inlet valve housing and the outlet valve housing in response to the pressure on the inlet valve housing and the outlet valve housing from the gas in the vessel chamber during operation of the piston compressor.
F04B 9/109 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant à fluide le fluide étant liquide avec plusieurs chambres de pompage
F04B 9/115 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant à fluide le fluide étant liquide avec plusieurs chambres de pompage avec deux organes de pompage liés mécaniquement le mouvement alternatif des organes de pompage étant obtenu par deux moteurs hydrauliques à simple effet, chacun agissant dans un sens
F04B 25/00 - Pompes multiétagées spécialement adaptées aux fluides compressibles
F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
F04B 39/10 - Adaptation ou aménagement des organes de distribution
The present invention relates to an arrangement for treatment of articles by hot pressing and in particular by hot isostatic pressing. The pressing arrangement includes a pressure vessel and a furnace chamber adapted to hold articles, which furnace chamber is provided inside the pressure vessel. At least one guiding passage communicating with the furnace chamber forms an outer cooling loop, wherein the pressure medium in a part of the outer cooling loop is guided in proximity to pressure vessel walls and the top end closure before it re-enters into the furnace chamber. Further, a guiding channel element is located in the at least one guiding passage forming the outer cooling loop is arranged with at least one pressure medium channel for guiding the pressure medium from a central opening of the heat insulated casing radially and circumferentially towards a lateral wall of the pressure cylinder. The at least one pressure medium channel has a substantially constant cross-sectional area in a flow direction of the pressure medium.
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
The present invention relates to an arrangement for treatment of articles by hot pressing. The pressing arrangement for treatment of articles by hot pressing comprises a pressure vessel including: a furnace chamber comprising a heat insulated casing and a furnace adapted to hold the articles. A heat exchanger unit is arranged below said furnace chamber and adapted to exchange thermal energy with pressure medium when the pressure medium is passing through said heat exchanger unit. According to the present invention, at least one first and second inlet or aperture, respectively, for passage of alternating warm and cold pressure medium are arranged in the heat insulated casing in proximity to the heat exchanger unit (i.e. at approximately same the height as, above or below the heat exchanger unit). The at least one second inlet (or lower inlet) is below the at least one first inlet (or upper inlet) but at same height as or below the heat exchanger unit.
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
F27B 17/00 - Fours d'un genre non couvert par l'un des groupes
A pressure vessel for isostatic pressing and a press comprising such a pressure vessel, wherein the pressure vessel comprises at least two sub- cylinders which are axially connected to form a force absorbing pressure vessel cylinder for enclosing a pressure medium during said isostatic pressing, wherein the axially connected sub-cylinders are welded along the joint(s) of the connected sub-cylinders. The pressure vessel comprises axially pre-stressing means arranged for exerting axial compressive forces on the sub-cylinders for attaining axial compressive stress at said joint(s) when the pressure medium is pressurized, and radially pre-stressing means arranged for exerting radial compressive forces on the sub-cylinders for attaining tangential compressive stress at the joint(s) when the pressure medium is pressurized.
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
A pressure vessel comprising a pressure chamber (5) arranged for accommodating a pressure medium, comprising at least one cylinder segment (2) arranged for longitudinal connection to form a cylinder body (1), whereby a joint (7) arranged for an interconnection is formed at adjacent longitudinal edges (6) of the at least one cylinder segment. The pressure vessel further comprises pre-stressing means (20) provided around an outer envelope surface (4) of the cylinder body for radially pre-stressing the cylinder body and for at least partly decreasing a gap (11) extending along at least a portion of each joint between adjacent longitudinal edges of the at least one cylinder segment.
B23K 9/025 - Soudage de joints continusSupportsPièces rapportées pour des joints rectilignes
B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
A pressure vessel comprising a pressure chamber (5) arranged for accommodating a pressure medium, comprising at least one cylinder segment (2) arranged for longitudinal connection to form a cylinder body (1), whereby a joint (7) is formed at adjacent edges (6) of the at least one cylinder segment for sealing the adjacent edges, and first pre-stressing means (20) arranged for exerting radial compressive forces on the at least one cylinder segment for attaining tangential compressive stress (16) at the joint(s).
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
B23K 20/16 - Soudage non électrique par percussion ou par une autre forme de pression, avec ou sans chauffage, p. ex. revêtement ou placage en interposant un matériau particulier facilitant l'assemblage des pièces, p. ex. un matériau absorbant ou produisant des gaz
B23P 11/00 - Assemblage ou désassemblage de pièces ou d'objets métalliques par des processus du travail du métal non prévus ailleurs
The present invention relates to an arrangement for treatment of articles by hot pressing and preferably by hot isostatic pressing. In particular, the present invention relates to such an arrangement capable of obtaining a rapid rate without the need of special purpose valves for the cooling. A furnace chamber is provided inside the pressure vessel of the arrangement and a heat insulated casing arranged to surround the furnace chamber. A bottom insulating portion is arranged beneath the furnace chamber. Further, a fan having a controllable number of revolutions for circulating the pressure medium within the furnace chamber is arranged in the pressure vessel, and preferable within the furnace chamber. At least one feeding passage is arranged to allow feeding of pressure medium from a region being colder than a region within the furnace chamber towards an inlet of the fan, wherein an amount of pressure medium being fed to the inlet of the fan can be controlled by adjusting operational parameters of the fan.
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
F27B 17/00 - Fours d'un genre non couvert par l'un des groupes
16.
HIGH-PRESSURE ARRANGEMENT WITH LOCKING ELEMENT PREVENTING ROTATION OF LOAD BASKET
A high-pressure pressing arrangement comprises: two coaxial end closures (6); a high-pressure cylinder having two coaxial end openings, which are closable by the end closures; a frame for resisting outward axial movement of the end closures; a load basket (2) for carrying articles to be treated, wherein the high-pressure cylinder and the frame are arranged transversally movable relative to each other between an operating position and a loading/unloading position; wherein, in the operating position, the end closures are positioned to cover the end apertures and, in the loading/unloading position, at least one of the end closures is positioned to uncover at least one end aperture. Further, a first locking element (21 ) is provided on an end closure and a second locking element (13) is provided on an outward end surface of the load basket, so as to mate with the first element to prevent rotation of the load basket.
A23L 1/025 - Traitement physique, p.ex. par énergie ondulatoire, par irradiation, par des moyens électriques, par des champs magnétiques (cuisson A23L 1/01; conservation A23L 3/00, A23B)
A23L 3/015 - Conservation des aliments ou produits alimentaires, en général, p.ex. pasteurisation ou stérilisation, spécialement adaptée aux aliments ou produits alimentaires par un traitement utilisant une variation de pression, une secousse, une accélération ou un cisaillement
B01J 3/00 - Procédés utilisant une pression supérieure ou inférieure à la pression atmosphérique pour obtenir des modifications chimiques ou physiques de la matièreAppareils à cet effet
B01J 3/04 - Récipients sous pression, p. ex. autoclaves
F17C 1/00 - Récipients sous pression, p. ex. bouteilles de gaz, réservoirs de gaz, cartouches échangeables
A high-pressure press, comprising a high-pressure vessel enclosing a high-pressure chamber and a high-pressure medium, a housing provided within the high-pressure press chamber for separating a volume from the high-pressure press chamber, which housing is arranged for holding a fluid, a fan arranged in the high-pressure press chamber outside the housing for circulating the high pressure medium in the high-pressure press chamber, a motor arranged in the housing, which motor (2) is operatively connected to the fan for driving the fan, a cooling device arranged for cooling a portion of the housing wall (9), and a pumping device (30) arranged for circulating the fluid within the housing passed the portion of the housing wall (9) that is cooled by the cooling device (20) and passed the motor, such that the fluid provides a transfer of cold from the portion of the housing wall to the motor (2) for cooling the motor (2).
B30B 11/00 - Presses spécialement adaptées à la fabrication d'objets à partir d'un matériau en grains ou à l'état plastique, p. ex. presses à briquettes ou presses à tablettes
The present invention relates to a pressure vessel (1) for a high pressure press, wherein the pressure vessel comprising a first sub-cylinder (4), a second sub-cylinder (6), pre-stressing means (8), and a securing member (16). The first and the second sub-cylinders (4, 6) are axially connected to form a cylinder body (2) for enclosing a high pressure medium. The first sub- cylinder (4) is in an outer wall provided with a first seat (22) for receiving a first part (24) of the securing member (16) and the second sub-cylinder (6) is in an outer wall provided with a second seat (26) for receiving a second part (28) of the securing member (16). The securing member (16) is fitted in the first and second seats (22, 26). The securing member (16), and the first and second seats (22, 26) are arranged such that the securing member (16), and the first and second seats (22, 26) cooperate to prevent separating axial movement between the first and the second sub-cylinders (4, 6). The pre- stressing means (8) is provided around the envelope surface of the cylinder body (2) such that the cylinder body (2) is radially pre-stressed and such that the securing member (16) is locked in the first and second seats (22, 26).
The present invention relates to a pressure vessel (1) for a high pressure press comprising at least a first sub-cylinder (4) and a second sub-cylinder (6), which are axially connected to form a cylinder body (2) for enclosing a high pressure medium, and a sealing arrangement arranged at the inner wall of the cylinder body for sealing the joint (3) between the first and the second sub-cylinder (4, 6) against leakage of the pressure medium. The sealing arrangement is comprising a ring shaped sealing band (18), a first circumferential protruding flange (30), which is arranged on the inner wall of the first sub-cylinder and which axially extends from the joint (3) and away from the second sub-cylinder (6), and a second circumferential protruding flange (32), which is arranged on the inner wall of the second sub-cylinder (6) and which axially extends from the joint (3) and away from the first sub-cylinder (4). The sealing band (18), in mounted position, is located concentrically within the first and the second protruding flanges (30, 32) such that it in a radially pre-stressed manner abuts against the first and second protruding flanges (30, 32) and sealingly overlaps the joint (3) between the first and the second sub-cylinder (4, 6). The sealing arrangement further comprises a first circumferential mounting space (51), which is arranged in the inner wall of the first sub-cylinder (4) and which axially extends from the first protruding flange (30) and away from the second sub-cylinder (6), for facilitating exchange of components of the sealing arrangement.
In an aspect of the invention, there is provided a hot isostatic pressing arrangement for treatment of articles by hot isostatic pressing. The arrangement comprises a pressure vessel (1) including a furnace chamber (18) comprising a heat insulated casing (3) and a furnace (36) for heating of a pressure medium during pressing, and a 'heat exchanger unit' (33) or heat absorbing material located below said furnace chamber (18). In another aspect of the invention, there is provided a method for treatment of articles in a hot isostatic press. The press further comprises a pressure vessel enclosing a furnace chamber and a 'heat exchanger unit'. The method comprises the steps of loading the articles into the furnace chamber, performing pressurized and heated treatment of the articles, cooling the articles and unloading of the articles. All said steps are performed while the 'heat exchanger unit' remains located inside the pressure vessel. Heat is transferred to and from the 'heat exchanger unit' at different portions of the hot isostatic pressing cycle.
brevets