EP3636983A1 - Anti-collapse device for pressurised gas storage tank - Google Patents

Anti-collapse device for pressurised gas storage tank Download PDF

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Publication number
EP3636983A1
EP3636983A1 EP19202679.7A EP19202679A EP3636983A1 EP 3636983 A1 EP3636983 A1 EP 3636983A1 EP 19202679 A EP19202679 A EP 19202679A EP 3636983 A1 EP3636983 A1 EP 3636983A1
Authority
EP
European Patent Office
Prior art keywords
tank
base
gas storage
liner
storage tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19202679.7A
Other languages
German (de)
French (fr)
Inventor
Laurent Lagunegrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Atlantic Composites SAS
Original Assignee
Stelia Aerospace Composites SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stelia Aerospace Composites SAS filed Critical Stelia Aerospace Composites SAS
Publication of EP3636983A1 publication Critical patent/EP3636983A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/054—Size medium (>1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F17C2203/0673—Polymers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305—Bosses, e.g. boss collars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/037—Handling leaked fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0186—Applications for fluid transport or storage in the air or in space
    • F17C2270/0189—Planes

Definitions

  • the present invention relates to the field of pressurized gas storage tanks.
  • the present invention relates more particularly to the field of pressurized gas storage tanks comprising an envelope defining a gas storage volume open at at least one of its ends, comprising one or more base (s) as well as a wall of flexible internal sealing, hereinafter designated by the English term "liner”, and a filamentary reinforcing winding disposed on all or part of its outer surface.
  • the bases represent the interfaces of the tank with the gas circuit on the open end side and can be used as interface for fixing the tank.
  • the present invention relates more particularly to tanks using metal bases made of steel or aluminum alloy, and liners made of thermoplastic materials used in type IV storage tanks, but may be applicable to assemblies using bases made of materials. plastics, plastics reinforced with short or long fibers, other metallic materials, and using liners made of polymeric materials other than thermoplastics and used in pressurized fluid storage tanks, in liquid or gaseous form.
  • gas storage tanks comprising a sealed envelope consisting of one or more metal bases, at least one of them being open, and a liner made of polymer material.
  • liners made of polymeric materials compared to liners made of metallic materials are mechanical resistance superior to cyclic stresses and reduced mass.
  • this type of construction is sensitive to the rate of gas discharge. An excessively high emptying speed can lead to degradation of the envelope by permanent deformation of the polymer liner, commonly known as “collapse” in English.
  • FIGS 1A and 1B represent general views of a tank 10 according to the state of the art.
  • a tank 10 of the prior art comprising an open base 11, a liner 13 and a resistant structure 14.
  • the tank 10 of the Figure 1B has a closed base 12.
  • FIGS. 2A and 2B illustrate a detail on a bonded bond between the envelope and the resistant structure for a tank according to the prior art.
  • a bond 15 bonded between the envelope and the resistant structure 14.
  • a liner 13 is also observed in these Figures.
  • French patent N ° FR 3 015 630 B1 STELIA AEROSPACE COMPOSITES
  • STELIA AEROSPACE COMPOSITES STELIA AEROSPACE COMPOSITES
  • the invention described in this French patent of the state of the art relates more particularly to a tank intended for the storage of liquid or gaseous media under pressure, comprising an inner envelope defining a storage chamber, said inner envelope comprising an opening, a base placed at said opening to ensure the interior / exterior connection of said reservoir and a mechanical reinforcement envelope surrounding at least said interior envelope, said base comprising a hollow cylindrical neck portion defining an interior channel and an annular portion comprising a bottom surface constituting the lower surface of said base, said lower surface being placed opposite a contact surface of said inner casing.
  • said base comprises in its thickness at least one vent distinct from said channel, said at least one vent opening at one of its ends at the lower surface of said annular part and at its other end. in said interior channel so as to ensure the evacuation of the gases having passed through the wall of the interior envelope.
  • French patent N ° FR 3 015 629 B1 STELIA AEROSPACE COMPOSITES
  • STELIA AEROSPACE COMPOSITES STELIA AEROSPACE COMPOSITES
  • the invention described in this French patent of the state of the art relates more particularly to a tank intended for the storage of liquid or gaseous media under pressure, comprising an inner envelope defining a storage chamber, said inner envelope comprising an opening, a base placed at said opening to ensure the interior / exterior connection of said reservoir and a mechanical reinforcement envelope surrounding at least said interior envelope.
  • said base comprises a first base portion integral only with said interior envelope and a second base portion integral only with said mechanical reinforcement envelope, said first and second base portions being distinct and not linked together, - the space separating said base portions forming a vent ensuring the evacuation of the gases having passed through the wall of the interior envelope.
  • the present invention intends to remedy the drawbacks of the prior art by proposing an anti-collapse device for a pressurized gas storage tank, said tank consisting of a reinforcing filament winding and a sealed envelope open to at least one of its ends comprising an open base, a closed base and a polymer liner, allowing rapid filling, storage and emptying of a gas under pressure without permanent deformation of the liner and benefiting from the advantages of the previously mentioned polymer liners of the state of technique.
  • Quick drain means a drain of up to 2 kg / s of gas.
  • the present invention constitutes a particularly simple variant to implement.
  • the present invention relates, in its most general sense, to an anti-collapse device for a pressurized gas storage tank, said tank being defined by an upper part and a lower part, said tank comprising a filament winding of reinforcement and a sealed envelope open at at least one of its ends, defining a volume for storing gas under pressure, consisting of a base open at the top of the tank, a liner, said tank further comprising a resistant structure of composite material , said anti-collapse device comprising at least one vent allowing the evacuation of the gas trapped between the envelope and the resistant structure of composite material, said vent being distinct from the open base.
  • the vent is located in the lower part of the tank.
  • the vent is located in a closed base or is a closed base.
  • the preferred path for evacuating trapped gas is obtained during movement of the liner under the effect of the external pressure locally applied by this gas (commonly called "blistering" in English).
  • This displacement has the effect of generating a passage between the sealed envelope and the resistant structure up to the vent or to the network of vents arranged on the closed base allowing the evacuation of the trapped gas.
  • the device according to the present invention makes it possible to obtain a reservoir having a reinforcing filament winding and a sealed envelope open at at least one of its ends comprising two bases and a polymer liner, allowing rapid filling, storage and emptying. of a pressurized gas without permanent deformation of the liner and benefiting from the advantages of polymer liners, ie a reduced mass and improved fatigue resistance.
  • said liner is made of polymeric materials.
  • the interface between the external surface of the liner and the resistant structure made of composite material is not bonded.
  • the interface between the external surface of the liner and the resistant structure in composite material allows the circulation of trapped gases between the external surface of the liner and the resistant structure in composite material.
  • said resistant structure of composite material is kinematically linked with the open base and with the closed base.
  • the area of the bases in contact with said resistant structure of composite material has functions of locking in rotation and in translation.
  • the envelope is formed of the liner and the open base, these two constituents being able to be assembled by gluing, by welding, by mechanical connection or any other connection allowing the gas stored to be sealed.
  • the closed base is positioned without mechanical connection, only by contact with the liner.
  • the present invention also relates to a tank comprising a device conforming to the device mentioned above.
  • the present invention also relates to a vehicle, land or sea, comprising such a tank, to stationary equipment comprising such a tank, and to an aircraft comprising such a tank.
  • the present invention relates to an anti-collapse device 100 for a tank 110 for storing pressurized gas.
  • the present invention relates more particularly to a device 100 anti-collapse for tank 110 for storing gas under pressure, said tank being defined by an upper part and a lower part, said tank 110 comprising a filamentary reinforcement winding and a sealed envelope. open at at least one of its ends, defining a pressure gas storage volume, consisting of a base 111 open at the top of the tank, a liner 113, said tank 110 further comprising a resistant structure 114 made of composite material, said anti-collapse device 100 comprising at least one vent 116 allowing the evacuation of the gas trapped between the envelope and the resistant structure 114 of composite material, said vent 116 being distinct from the open base 111.
  • the reservoir 110 comprises a reinforcing filament winding and a sealed envelope open at at least one of its ends, defining a storage volume of pressurized gas, consisting of a base 111 open as well as d a liner 113 which, in one embodiment, is made of polymer, and is designed so that there is a space between all or part of the external surface of the envelope and all or part of the surface internal of the resistant structure 114, and that there is a preferred path for evacuating the gas trapped in the space between the envelope and the resistant structure 114.
  • the vent 116 is located in the lower part of the tank. It can for example be at a level corresponding to 30% of the tank. Said vent 116 is preferably located opposite the open base 111.
  • the vent 116 is located in a closed base 112 or else is a closed base 112.
  • the preferred gas evacuation path is integrated into the design of the closed base 112.
  • the device according to the present invention applies more particularly to tanks having an operating pressure between 300 and 1500 bars.
  • the Figure 3 shows a tank 110 with trapped gas evacuation system, in an embodiment of the present invention.
  • a tank 110 comprising a closed base 112, a liner 113, a resistant structure 114 and a vent 116 for the evacuation of the trapped gas.
  • the waterproof envelope is formed by the polymer liner 113 and the open base 111, these two constituents being able to be assembled by gluing, by welding, by mechanical connection or any other connection allowing sealing to the stored gas.
  • the closed base 112 is positioned without mechanical connection, only by contact with the polymer liner 113.
  • the closed base incorporates one or more vents 116 allowing the evacuation of the gas trapped between the envelope and the composite structure.
  • the resistant structure is made in such a way that it is kinematically linked with the two bases, 111 open and 112 closed.
  • the area of the bases 111 and 112 in contact with the resistant structure 114 integrates the functions of locking in rotation and in translation.
  • the interface between the external surface of the polymer liner 113 and the resistant structure 114 is not bonded.
  • the preferred path for evacuating trapped gas is obtained during movement of liner 113 under the effect of the external pressure locally applied by this gas (blistering). This displacement has the effect of generating a passage between the sealed envelope and the resistant structure 114 up to the vent 116 or to the network of vents 116 arranged on the closed base 112 allowing the evacuation of the trapped gas.
  • FIGS. 4A and 4B illustrate a tank 110 with trapped gas evacuation system, in an embodiment of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

La présente invention se rapporte à un dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression, ledit réservoir étant défini par une partie supérieure et une partie inférieure, ledit réservoir (110) comportant un enroulement filamentaire de renforcement et une enveloppe étanche ouverte à au moins une de ses extrémités, définissant un volume de stockage de gaz sous pression, constituée d'une embase (111) ouverte en partie supérieure du réservoir, un liner (113), ledit réservoir (110) comportant en outre une structure résistante (114) en matériau composite, ledit dispositif (100) anti-collapse comportant au moins un évent (116) permettant l'évacuation du gaz piégé entre l'enveloppe et la structure (114) résistante en matériau composite, ledit évent (116) étant distinct de l'embase (111) ouverte.The present invention relates to an anti-collapse device (100) for a pressurized gas storage tank (110), said tank being defined by an upper part and a lower part, said tank (110) comprising a reinforcing filament winding. and a sealed envelope open at at least one of its ends, defining a storage volume for gas under pressure, consisting of a base (111) open at the top of the tank, a liner (113), said tank (110) comprising in addition a resistant structure (114) made of composite material, said anti-collapse device (100) comprising at least one vent (116) allowing the evacuation of the gas trapped between the envelope and the resistant structure (114) made of composite material, said vent (116) being distinct from the open base (111).

Description

Domaine de l'inventionField of the invention

La présente invention se rapporte au domaine des réservoirs de stockage de gaz sous pression.The present invention relates to the field of pressurized gas storage tanks.

La présente invention se rapporte plus particulièrement au domaine des réservoirs de stockage de gaz sous pression comportant une enveloppe définissant un volume de stockage de gaz ouverte à au moins une de ses extrémités, comprenant une ou plusieurs embase(s) ainsi qu'une paroi d'étanchéité interne souple, ci-après désignée par le terme anglais « liner », et un enroulement filamentaire de renforcement disposé sur tout ou une partie de sa surface extérieure. Les embases représentent les interfaces du réservoir avec le circuit de gaz coté extrémité ouverte et peuvent être utilisées comme interface de fixation du réservoir.The present invention relates more particularly to the field of pressurized gas storage tanks comprising an envelope defining a gas storage volume open at at least one of its ends, comprising one or more base (s) as well as a wall of flexible internal sealing, hereinafter designated by the English term "liner", and a filamentary reinforcing winding disposed on all or part of its outer surface. The bases represent the interfaces of the tank with the gas circuit on the open end side and can be used as interface for fixing the tank.

La présente invention concerne plus particulièrement les réservoirs utilisant des embases métalliques en alliage d'acier ou d'aluminium, et des liners en matériaux thermoplastiques utilisés dans les réservoirs de stockage de type IV, mais peut être applicable aux assemblages utilisant des embases réalisées en matériaux plastiques, plastiques renforcés de fibres courtes ou longues, autres matériaux métalliques, et utilisant des liners en matériaux polymères autres que thermoplastiques et utilisés dans les réservoirs de stockage de fluide sous pression, sous forme liquide ou gazeuse.The present invention relates more particularly to tanks using metal bases made of steel or aluminum alloy, and liners made of thermoplastic materials used in type IV storage tanks, but may be applicable to assemblies using bases made of materials. plastics, plastics reinforced with short or long fibers, other metallic materials, and using liners made of polymeric materials other than thermoplastics and used in pressurized fluid storage tanks, in liquid or gaseous form.

Etat de la techniqueState of the art

On connaît dans l'état de la technique des réservoirs de stockage de gaz comprenant une enveloppe étanche constituée d'une ou plusieurs embases métalliques, l'une d'entre elles au moins étant ouverte, et d'un liner en matériau polymère.There are known in the state of the art gas storage tanks comprising a sealed envelope consisting of one or more metal bases, at least one of them being open, and a liner made of polymer material.

Les principaux avantages des liners en matériaux polymères vis-à-vis des liners en matériaux métalliques sont une tenue mécanique supérieure aux sollicitations cycliques et une masse réduite. Cependant, lors des phases d'utilisation des réservoirs, il a été constaté que ce type de construction est sensible à la vitesse de vidange du gaz. Une vitesse de vidange trop élevée peut entraîner une dégradation de l'enveloppe par déformation permanente du liner polymère, communément appelée « collapse » en anglais.The main advantages of liners made of polymeric materials compared to liners made of metallic materials are mechanical resistance superior to cyclic stresses and reduced mass. However, during the phases of use of the tanks, it has been observed that this type of construction is sensitive to the rate of gas discharge. An excessively high emptying speed can lead to degradation of the envelope by permanent deformation of the polymer liner, commonly known as “collapse” in English.

Les Figures 1A et 1B représentent des vues d'ensemble d'un réservoir 10 selon l'état de la technique. On observe sur les Figures 1A et 1B un réservoir 10 de l'état de la technique, comportant une embase 11 ouverte, un liner 13 et une structure résistante 14. De plus, le réservoir 10 de la Figure 1B comporte une embase 12 fermée.The Figures 1A and 1B represent general views of a tank 10 according to the state of the art. We observe on Figures 1A and 1B a tank 10 of the prior art, comprising an open base 11, a liner 13 and a resistant structure 14. In addition, the tank 10 of the Figure 1B has a closed base 12.

Une des raisons possible du phénomène de collapse est la relative perméabilité au gaz stocké du matériau polymère utilisé pour fabriquer le liner. Une partie du gaz initialement à l'intérieur de l'enveloppe passe au travers de la paroi du liner. Dans les réservoirs conventionnels, la structure composite qu'elle soit collée ou non à l'enveloppe, retarde voire empêche l'évacuation de ce gaz vers l'extérieur et peut entraîner la création de poches de gaz entre l'enveloppe et la structure résistante. Lors de la vidange, le gaz piégé entre l'enveloppe et la structure composite n'est pas évacué et entraîne la formation de cloques sur le liner. Cette déformation permanente du liner peut conduire à des fissures dans la paroi et compromettre l'étanchéité du réservoir.One of the possible reasons for the collapse phenomenon is the relative permeability to stored gas of the polymer material used to make the liner. Part of the gas initially inside the envelope passes through the wall of the liner. In conventional tanks, the composite structure, whether or not glued to the envelope, delays or prevents the evacuation of this gas to the outside and can lead to the creation of gas pockets between the envelope and the resistant structure . During the emptying, the gas trapped between the envelope and the composite structure is not evacuated and leads to the formation of blisters on the liner. This permanent deformation of the liner can lead to cracks in the wall and compromise the tightness of the tank.

Les Figures 2A et 2B illustrent un détail sur une liaison collée entre l'enveloppe et la structure résistante pour un réservoir selon l'état de la technique. On observe sur les Figures 2A et 2B une liaison 15 collée entre l'enveloppe et la structure résistante 14. On observe également un liner 13 sur ces Figures. De plus, on observe une embase 12 fermée sur la Figure 1A et une embase 11 ouverte sur la Figure 1B.The Figures 2A and 2B illustrate a detail on a bonded bond between the envelope and the resistant structure for a tank according to the prior art. We observe on Figures 2A and 2B a bond 15 bonded between the envelope and the resistant structure 14. A liner 13 is also observed in these Figures. In addition, there is a closed base 12 on the Figure 1A and a base 11 open on the Figure 1B .

On connaît également dans l'état de la technique le brevet français N° FR 3 015 630 B1 (STELIA AEROSPACE COMPOSITES), qui se rapporte à un réservoir destiné au stockage de milieux liquides ou gazeux sous pression. L'invention décrite dans ce brevet français de l'état de la technique concerne plus particulièrement un réservoir destiné au stockage de milieux liquides ou gazeux sous pression, comprenant une enveloppe intérieure définissant une chambre de stockage, ladite enveloppe intérieure comprenant une ouverture, une embase placée au niveau de ladite ouverture pour assurer la connexion intérieur/extérieur dudit réservoir et une enveloppe de renforcement mécanique entourant au moins ladite enveloppe intérieure, ladite embase comportant une partie de col cylindrique creux définissant un canal intérieur et une partie annulaire comprenant une surface inférieure constituant la surface inférieure de ladite embase, ladite surface inférieure étant placée en vis-à-vis d'une surface de contact de ladite enveloppe intérieure. Selon cette invention de l'état de la technique, ladite embase comporte dans son épaisseur au moins un évent distinct dudit canal, ledit au moins un évent débouchant à une première de ses extrémités à la surface inférieure de ladite partie annulaire et à son autre extrémité dans ledit canal intérieur de manière à assurer l'évacuation des gaz ayant traversé la paroi de l'enveloppe intérieure.Also known in the prior art is French patent N ° FR 3 015 630 B1 (STELIA AEROSPACE COMPOSITES), which relates to a tank intended for the storage of liquid or gaseous media under pressure. The invention described in this French patent of the state of the art relates more particularly to a tank intended for the storage of liquid or gaseous media under pressure, comprising an inner envelope defining a storage chamber, said inner envelope comprising an opening, a base placed at said opening to ensure the interior / exterior connection of said reservoir and a mechanical reinforcement envelope surrounding at least said interior envelope, said base comprising a hollow cylindrical neck portion defining an interior channel and an annular portion comprising a bottom surface constituting the lower surface of said base, said lower surface being placed opposite a contact surface of said inner casing. According to this invention of the state of the art, said base comprises in its thickness at least one vent distinct from said channel, said at least one vent opening at one of its ends at the lower surface of said annular part and at its other end. in said interior channel so as to ensure the evacuation of the gases having passed through the wall of the interior envelope.

On connaît également dans l'état de la technique le brevet français N° FR 3 015 629 B1 (STELIA AEROSPACE COMPOSITES), qui se rapporte à un réservoir destiné au stockage de milieux liquides ou gazeux sous pression. L'invention décrite dans ce brevet français de l'état de la technique concerne plus particulièrement un réservoir destiné au stockage de milieux liquides ou gazeux sous pression, comprenant une enveloppe intérieure définissant une chambre de stockage, ladite enveloppe intérieure comprenant une ouverture, une embase placée au niveau de ladite ouverture pour assurer la connexion intérieur/extérieur dudit réservoir et une enveloppe de renforcement mécanique entourant au moins ladite enveloppe intérieure. Selon cette invention de l'état de la technique, - ladite embase comprend une première portion d'embase solidaire uniquement de ladite enveloppe intérieure et une deuxième portion d'embase solidaire uniquement de ladite enveloppe de renforcement mécanique, lesdites première et deuxième portions d'embase étant distinctes et non liées entre elles, - l'espace séparant lesdites portions d'embase formant un évent assurant l'évacuation des gaz ayant traversé la paroi de l'enveloppe intérieure.Also known in the prior art is French patent N ° FR 3 015 629 B1 (STELIA AEROSPACE COMPOSITES), which relates to a tank intended for the storage of liquid or gaseous media under pressure. The invention described in this French patent of the state of the art relates more particularly to a tank intended for the storage of liquid or gaseous media under pressure, comprising an inner envelope defining a storage chamber, said inner envelope comprising an opening, a base placed at said opening to ensure the interior / exterior connection of said reservoir and a mechanical reinforcement envelope surrounding at least said interior envelope. According to this invention of the state of the art, - said base comprises a first base portion integral only with said interior envelope and a second base portion integral only with said mechanical reinforcement envelope, said first and second base portions being distinct and not linked together, - the space separating said base portions forming a vent ensuring the evacuation of the gases having passed through the wall of the interior envelope.

Exposé de l'inventionStatement of the invention

La présente invention entend remédier aux inconvénients de l'art antérieur en proposant un dispositif anti-collapse pour réservoir de stockage de gaz sous pression, ledit réservoir étant constitué d'un enroulement filamentaire de renforcement et d'une enveloppe étanche ouverte à au moins une de ses extrémités comportant une embase ouverte, une embase fermée et un liner polymère, permettant le remplissage, le stockage et la vidange rapide d'un gaz sous pression sans déformation permanente du liner et bénéficiant des avantages des liners polymères précédemment cités de l'état de la technique. On entend par vidange rapide une vidange pouvant aller jusqu'à 2 kg/s de gaz.The present invention intends to remedy the drawbacks of the prior art by proposing an anti-collapse device for a pressurized gas storage tank, said tank consisting of a reinforcing filament winding and a sealed envelope open to at least one of its ends comprising an open base, a closed base and a polymer liner, allowing rapid filling, storage and emptying of a gas under pressure without permanent deformation of the liner and benefiting from the advantages of the previously mentioned polymer liners of the state of technique. Quick drain means a drain of up to 2 kg / s of gas.

La présente invention constitue une variante particulièrement simple à mettre en œuvre.The present invention constitutes a particularly simple variant to implement.

A cet effet, la présente invention concerne, dans son acception la plus générale, un dispositif anti-collapse pour réservoir de stockage de gaz sous pression, ledit réservoir étant défini par une partie supérieure et une partie inférieure, ledit réservoir comportant un enroulement filamentaire de renforcement et une enveloppe étanche ouverte à au moins une de ses extrémités, définissant un volume de stockage de gaz sous pression, constituée d'une embase ouverte en partie supérieure du réservoir, un liner, ledit réservoir comportant en outre une structure résistante en matériau composite, ledit dispositif anti-collapse comportant au moins un évent permettant l'évacuation du gaz piégé entre l'enveloppe et la structure résistante en matériau composite, ledit évent étant distinct de l'embase ouverte.To this end, the present invention relates, in its most general sense, to an anti-collapse device for a pressurized gas storage tank, said tank being defined by an upper part and a lower part, said tank comprising a filament winding of reinforcement and a sealed envelope open at at least one of its ends, defining a volume for storing gas under pressure, consisting of a base open at the top of the tank, a liner, said tank further comprising a resistant structure of composite material , said anti-collapse device comprising at least one vent allowing the evacuation of the gas trapped between the envelope and the resistant structure of composite material, said vent being distinct from the open base.

Selon un mode de réalisation, l'évent se situe en partie inférieure du réservoir.According to one embodiment, the vent is located in the lower part of the tank.

Selon un mode de réalisation, l'évent se situe dans une embase fermée ou bien est une embase fermée.According to one embodiment, the vent is located in a closed base or is a closed base.

Le chemin privilégié d'évacuation du gaz piégé est obtenu lors du déplacement du liner sous l'effet de la pression externe localement appliquée par ce gaz (communément appelé « blistering » en anglais). Ce déplacement a pour effet de générer un passage entre l'enveloppe étanche et la structure résistante jusqu'à l'évent ou au réseau d'évents aménagé sur l'embase fermée permettant l'évacuation du gaz piégé.
Ainsi, le dispositif selon la présente invention permet d'obtenir un réservoir présentant un enroulement filamentaire de renforcement et une enveloppe étanche ouverte à au moins une de ses extrémités comprenant deux embases et un liner polymère, permettant le remplissage, le stockage et la vidange rapide d'un gaz sous pression sans déformation permanente du liner et bénéficiant des avantages des liners polymères soit une masse réduite et une tenue à la fatigue améliorée.The preferred path for evacuating trapped gas is obtained during movement of the liner under the effect of the external pressure locally applied by this gas (commonly called "blistering" in English). This displacement has the effect of generating a passage between the sealed envelope and the resistant structure up to the vent or to the network of vents arranged on the closed base allowing the evacuation of the trapped gas.
Thus, the device according to the present invention makes it possible to obtain a reservoir having a reinforcing filament winding and a sealed envelope open at at least one of its ends comprising two bases and a polymer liner, allowing rapid filling, storage and emptying. of a pressurized gas without permanent deformation of the liner and benefiting from the advantages of polymer liners, ie a reduced mass and improved fatigue resistance.

Selon un mode de réalisation, ledit liner est constitué de matériaux polymères.According to one embodiment, said liner is made of polymeric materials.

Selon un mode de réalisation, l'interface entre la surface externe du liner et la structure résistante en matériau composite n'est pas collée.According to one embodiment, the interface between the external surface of the liner and the resistant structure made of composite material is not bonded.

Selon un mode de réalisation, l'interface entre la surface externe du liner et la structure résistante en matériau composite permet la circulation des gaz piégés entre la surface externe du liner et la structure résistante en matériau composite.According to one embodiment, the interface between the external surface of the liner and the resistant structure in composite material allows the circulation of trapped gases between the external surface of the liner and the resistant structure in composite material.

Selon une variante, ladite structure résistante en matériau composite est liée cinématiquement avec l'embase ouverte et avec l'embase fermée.According to a variant, said resistant structure of composite material is kinematically linked with the open base and with the closed base.

Avantageusement, la zone des embases en contact avec ladite structure résistante en matériau composite possède des fonctions de blocage en rotation et en translation.Advantageously, the area of the bases in contact with said resistant structure of composite material has functions of locking in rotation and in translation.

Selon un mode de réalisation, l'enveloppe est formée du liner et de l'embase ouverte, ces deux constituants pouvant être assemblés par collage, par soudage, par liaison mécanique ou toute autre liaison permettant l'étanchéité au gaz stocké.According to one embodiment, the envelope is formed of the liner and the open base, these two constituents being able to be assembled by gluing, by welding, by mechanical connection or any other connection allowing the gas stored to be sealed.

Selon un mode de réalisation, l'embase fermée est positionnée sans liaison mécanique, uniquement par contact avec le liner.According to one embodiment, the closed base is positioned without mechanical connection, only by contact with the liner.

La présente invention se rapporte également à un réservoir comportant un dispositif conforme au dispositif évoqué ci-dessus.The present invention also relates to a tank comprising a device conforming to the device mentioned above.

La présente invention se rapporte également à un véhicule, terrestre ou maritime, comportant un tel réservoir, à un équipement stationnaire comportant un tel réservoir, et à un aéronef comportant un tel réservoir.The present invention also relates to a vehicle, land or sea, comprising such a tank, to stationary equipment comprising such a tank, and to an aircraft comprising such a tank.

Brève description des dessinsBrief description of the drawings

On comprendra mieux l'invention à l'aide de la description, faite ci-après à titre purement explicatif, d'un mode de réalisation de l'invention, en référence aux Figures dans lesquelles :

  • Les Figures 1A et 1B représentent des vues d'ensemble d'un réservoir selon l'état de la technique ;
  • Les Figures 2A et 2B illustrent un détail sur la liaison collée entre l'enveloppe et la structure résistante pour un réservoir selon l'état de la technique ;
  • La Figure 3 représente un réservoir avec système d'évacuation du gaz piégé, dans un mode de réalisation de la présente invention ; et
  • Les Figures 4A et 4B illustrent un réservoir avec système d'évacuation du gaz piégé, dans un mode de réalisation de la présente invention.
The invention will be better understood with the aid of the description, given below for purely explanatory purposes, of an embodiment of the invention, with reference to the Figures in which:
  • The Figures 1A and 1B represent general views of a tank according to the state of the art;
  • The Figures 2A and 2B illustrate a detail on the bonded bond between the envelope and the resistant structure for a tank according to the prior art;
  • The Figure 3 shows a tank with trapped gas evacuation system, in an embodiment of the present invention; and
  • The Figures 4A and 4B illustrate a tank with trapped gas evacuation system, in an embodiment of the present invention.

Description détaillée de modes de réalisation de l'inventionDetailed description of embodiments of the invention

La présente invention concerne un dispositif 100 anti-collapse pour réservoir 110 de stockage de gaz sous pression.The present invention relates to an anti-collapse device 100 for a tank 110 for storing pressurized gas.

La présente invention se rapporte plus particulièrement à un dispositif 100 anti-collapse pour réservoir 110 de stockage de gaz sous pression, ledit réservoir étant défini par une partie supérieure et une partie inférieure, ledit réservoir 110 comportant un enroulement filamentaire de renforcement et une enveloppe étanche ouverte à au moins une de ses extrémités, définissant un volume de stockage de gaz sous pression, constituée d'une embase 111 ouverte en partie supérieure du réservoir, un liner 113, ledit réservoir 110 comportant en outre une structure résistante 114 en matériau composite, ledit dispositif 100 anti-collapse comportant au moins un évent 116 permettant l'évacuation du gaz piégé entre l'enveloppe et la structure 114 résistante en matériau composite, ledit évent 116 étant distinct de l'embase 111 ouverte.The present invention relates more particularly to a device 100 anti-collapse for tank 110 for storing gas under pressure, said tank being defined by an upper part and a lower part, said tank 110 comprising a filamentary reinforcement winding and a sealed envelope. open at at least one of its ends, defining a pressure gas storage volume, consisting of a base 111 open at the top of the tank, a liner 113, said tank 110 further comprising a resistant structure 114 made of composite material, said anti-collapse device 100 comprising at least one vent 116 allowing the evacuation of the gas trapped between the envelope and the resistant structure 114 of composite material, said vent 116 being distinct from the open base 111.

Dans le cadre de la présente invention, le réservoir 110 comporte un enroulement filamentaire de renforcement et une enveloppe étanche ouverte à au moins une de ses extrémités, définissant un volume de stockage de gaz sous pression, constituée d'une embase 111 ouverte ainsi que d'un liner 113 qui, dans un mode de réalisation, est en polymère, et est conçu de manière à ce qu'il existe un espace entre tout ou une partie de la surface externe de l'enveloppe et tout ou une partie de la surface interne de la structure résistante 114, et qu'il existe un chemin privilégié d'évacuation du gaz piégé dans l'espace entre l'enveloppe et la structure résistante 114.In the context of the present invention, the reservoir 110 comprises a reinforcing filament winding and a sealed envelope open at at least one of its ends, defining a storage volume of pressurized gas, consisting of a base 111 open as well as d a liner 113 which, in one embodiment, is made of polymer, and is designed so that there is a space between all or part of the external surface of the envelope and all or part of the surface internal of the resistant structure 114, and that there is a preferred path for evacuating the gas trapped in the space between the envelope and the resistant structure 114.

Dans un mode de réalisation, l'évent 116 se situe en partie inférieure du réservoir. Il peut se situer par exemple à un niveau correspondant à 30 % du réservoir. Ledit évent 116 est de préférence situé à l'opposé de l'embase 111 ouverte.In one embodiment, the vent 116 is located in the lower part of the tank. It can for example be at a level corresponding to 30% of the tank. Said vent 116 is preferably located opposite the open base 111.

Dans un mode de réalisation, l'évent 116 se situe dans une embase 112 fermée ou bien est une embase 112 fermée.In one embodiment, the vent 116 is located in a closed base 112 or else is a closed base 112.

Le chemin privilégié d'évacuation du gaz est intégré dans la conception de l'embase 112 fermée.The preferred gas evacuation path is integrated into the design of the closed base 112.

Le dispositif selon la présente invention s'applique plus particulièrement à des réservoirs ayant une pression de service comprise entre 300 et 1500 bars.The device according to the present invention applies more particularly to tanks having an operating pressure between 300 and 1500 bars.

La Figure 3 représente un réservoir 110 avec système d'évacuation du gaz piégé, dans un mode de réalisation de la présente invention.The Figure 3 shows a tank 110 with trapped gas evacuation system, in an embodiment of the present invention.

On observe sur la Figure 3 un réservoir 110 comportant une embase 112 fermée, un liner 113, une structure résistante 114 et un évent 116 pour l'évacuation du gaz piégé.We observe on the Figure 3 a tank 110 comprising a closed base 112, a liner 113, a resistant structure 114 and a vent 116 for the evacuation of the trapped gas.

Dans un mode de réalisation, l'enveloppe étanche est formée du liner 113 polymère et de l'embase 111 ouverte, ces deux constituants pouvant être assemblés par collage, par soudage, par liaison mécanique ou toute autre liaison permettant l'étanchéité au gaz stocké. L'embase 112 fermée est positionnée sans liaison mécanique, uniquement par contact avec le liner 113 polymère. L'embase fermée intègre un ou plusieurs évents 116 permettant l'évacuation du gaz piégé entre l'enveloppe et la structure composite.In one embodiment, the waterproof envelope is formed by the polymer liner 113 and the open base 111, these two constituents being able to be assembled by gluing, by welding, by mechanical connection or any other connection allowing sealing to the stored gas. . The closed base 112 is positioned without mechanical connection, only by contact with the polymer liner 113. The closed base incorporates one or more vents 116 allowing the evacuation of the gas trapped between the envelope and the composite structure.

La structure résistante est réalisée de telle sorte qu'elle soit liée cinématiquement avec les deux embases, 111 ouverte et 112 fermée. Pour cela la zone des embases 111 et 112 en contact avec la structure résistante 114 intègre les fonctions de blocage en rotation et en translation.The resistant structure is made in such a way that it is kinematically linked with the two bases, 111 open and 112 closed. For this, the area of the bases 111 and 112 in contact with the resistant structure 114 integrates the functions of locking in rotation and in translation.

L'interface entre la surface externe du liner 113 polymère et la structure résistante 114 n'est pas collée. Le chemin privilégié d'évacuation du gaz piégé est obtenu lors du déplacement du liner 113 sous l'effet de la pression externe localement appliquée par ce gaz (blistering). Ce déplacement a pour effet de générer un passage entre l'enveloppe étanche et la structure résistante 114 jusqu'à l'évent 116 ou au réseau d'évents 116 aménagé sur l'embase 112 fermée permettant l'évacuation du gaz piégé.The interface between the external surface of the polymer liner 113 and the resistant structure 114 is not bonded. The preferred path for evacuating trapped gas is obtained during movement of liner 113 under the effect of the external pressure locally applied by this gas (blistering). This displacement has the effect of generating a passage between the sealed envelope and the resistant structure 114 up to the vent 116 or to the network of vents 116 arranged on the closed base 112 allowing the evacuation of the trapped gas.

Les Figures 4A et 4B illustrent un réservoir 110 avec système d'évacuation du gaz piégé, dans un mode de réalisation de la présente invention.The Figures 4A and 4B illustrate a tank 110 with trapped gas evacuation system, in an embodiment of the present invention.

On observe sur la Figure 4A un réservoir 110 en phase de stockage et de remplissage, dans lequel le chemin d'évacuation 120 est fermé sous l'effet de la pression interne.We observe on the Figure 4A a reservoir 110 in the storage and filling phase, in which the evacuation path 120 is closed under the effect of internal pressure.

On observe sur la Figure 4B un réservoir 110 en phase de vidange, dans lequel le chemin d'évacuation 121 est ouvert par l'effet du gaz piégé à l'extérieur de l'enveloppe d'étanchéité.We observe on the Figure 4B a reservoir 110 in the emptying phase, in which the evacuation path 121 is opened by the effect of the gas trapped outside the sealing envelope.

L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes de l'invention sans pour autant sortir du cadre du brevet.The invention is described in the foregoing by way of example. It is understood that a person skilled in the art is able to carry out different variants of the invention without going beyond the scope of the patent.

Claims (13)

Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression, ledit réservoir étant défini par une partie supérieure et une partie inférieure, ledit réservoir (110) comportant un enroulement filamentaire de renforcement et une enveloppe étanche ouverte à au moins une de ses extrémités, définissant un volume de stockage de gaz sous pression, constituée d'une embase (111) ouverte en partie supérieure du réservoir, un liner (113), ledit réservoir (110) comportant en outre une structure résistante (114) en matériau composite, ledit dispositif (100) anti-collapse étant caractérisé ce qu'il comporte au moins un évent (116) permettant l'évacuation du gaz piégé entre l'enveloppe et la structure (114) résistante en matériau composite, ledit évent (116) étant distinct de l'embase (111) ouverte.Anti-collapse device (100) for a pressurized gas storage tank (110), said tank being defined by an upper part and a lower part, said tank (110) comprising a reinforcing filament winding and a sealed envelope open to at least one of its ends, defining a pressure gas storage volume, consisting of a base (111) open at the top of the tank, a liner (113), said tank (110) further comprising a resistant structure (114 ) made of composite material, said anti-collapse device (100) being characterized in that it comprises at least one vent (116) allowing the evacuation of the gas trapped between the envelope and the resistant structure (114) made of composite material, said vent (116) being distinct from the open base (111). Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression selon la revendication 1, caractérisé en ce que l'évent (116) se situe en partie inférieure du réservoir.Anti-collapse device (100) for pressurized gas storage tank (110) according to claim 1, characterized in that the vent (116) is located in the lower part of the tank. Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression selon la revendication 1 ou 2, caractérisé en ce que l'évent (116) se situe dans une embase (112) fermée ou bien est une embase (112) fermée.Anti-collapse device (100) for pressurized gas storage tank (110) according to claim 1 or 2, characterized in that the vent (116) is located in a closed base (112) or is a base ( 112) closed. Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression selon la revendication 1, caractérisé en ce que ledit liner (113) est constitué de polymère.Anti-collapse device (100) for pressurized gas storage tank (110) according to claim 1, characterized in that said liner (113) consists of polymer. Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression selon la revendication 1 ou 2, caractérisé en ce que l'interface entre la surface externe du liner (113) et la structure (114) résistante en matériau composite permet la circulation des gaz piégés entre la surface externe du liner (113) et la structure (114) résistante en matériau composite.Anti-collapse device (100) for pressurized gas storage tank (110) according to claim 1 or 2, characterized in that the interface between the external surface of the liner (113) and the resistant structure (114) made of material composite allows the circulation of trapped gases between the external surface of the liner (113) and the resistant structure (114) made of composite material. Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression selon la revendication 3, caractérisé en ce que ladite structure (114) résistante en matériau composite est liée cinématiquement avec l'embase (111) ouverte et avec l'embase (112) fermée.Anti-collapse device (100) for pressurized gas storage tank (110) according to claim 3, characterized in that said structure (114) resistant composite material is kinematically linked with the base (111) open and with the base (112) closed. Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression selon les revendications 3 et 4, caractérisé en ce que la zone des embases (111, 112) en contact avec ladite structure (114) résistante en matériau composite possède des fonctions de blocage en rotation et en translation.Anti-collapse device (100) for pressurized gas storage tank (110) according to claims 3 and 4, characterized in that the region of the bases (111, 112) in contact with said resistant structure (114) made of composite material has rotation and translation blocking functions. Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression selon l'une des revendications précédentes, caractérisé en ce que l'enveloppe est formée du liner (113) et de l'embase (111) ouverte, ces deux constituants pouvant être assemblés par collage, par soudage, par liaison mécanique ou toute autre liaison permettant l'étanchéité au gaz stocké.Anti-collapse device (100) for pressurized gas storage tank (110) according to one of the preceding claims, characterized in that the envelope is formed by the liner (113) and the open base (111), these two constituents can be assembled by gluing, welding, mechanical connection or any other connection allowing sealing of the stored gas. Dispositif (100) anti-collapse pour réservoir (110) de stockage de gaz sous pression selon la revendication 3, caractérisé en ce que l'embase (112) fermée est positionnée sans liaison mécanique, uniquement par contact avec le liner (113).Anti-collapse device (100) for pressurized gas storage tank (110) according to claim 3, characterized in that the closed base (112) is positioned without mechanical connection, only by contact with the liner (113). Réservoir comportant un dispositif selon l'une des revendications précédentes.Tank comprising a device according to one of the preceding claims. Véhicule, terrestre ou maritime, comportant un réservoir selon la revendication 8.Vehicle, land or sea, comprising a tank according to claim 8. Equipement stationnaire comportant un réservoir selon la revendication 8.Stationary equipment comprising a reservoir according to claim 8. Aéronef comportant un réservoir selon la revendication 8.Aircraft comprising a tank according to claim 8.
EP19202679.7A 2018-10-11 2019-10-11 Anti-collapse device for pressurised gas storage tank Withdrawn EP3636983A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859425A FR3087245B1 (en) 2018-10-11 2018-10-11 ANTI-COLLAPSE DEVICE FOR PRESSURIZED GAS STORAGE TANK

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EP3636983A1 true EP3636983A1 (en) 2020-04-15

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1519840A (en) * 1967-02-14 1968-04-05 Mitsubishi Heavy Ind Ltd Laminated wall pressure vessel for use with atmospheres containing hydrogen
US20090057319A1 (en) * 2007-08-29 2009-03-05 Harald Schlag Diffusion layer for pressure vessels
DE102008053244A1 (en) * 2008-10-25 2010-04-29 Daimler Ag Pressure vessel for storing gaseous media under pressure
US20130174920A1 (en) * 2010-08-06 2013-07-11 Daimler Ag Device for Storing Low-Molecular Gases
FR3015629B1 (en) 2013-12-20 2016-01-29 Eads Composites Aquitaine RESERVOIR FOR STORING LIQUID OR GASEOUS MEDIA UNDER PRESSURE
FR3015630B1 (en) 2013-12-20 2016-01-29 Eads Composites Aquitaine RESERVOIR FOR STORING LIQUID OR GASEOUS MEDIA UNDER PRESSURE

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1519840A (en) * 1967-02-14 1968-04-05 Mitsubishi Heavy Ind Ltd Laminated wall pressure vessel for use with atmospheres containing hydrogen
US20090057319A1 (en) * 2007-08-29 2009-03-05 Harald Schlag Diffusion layer for pressure vessels
DE102008053244A1 (en) * 2008-10-25 2010-04-29 Daimler Ag Pressure vessel for storing gaseous media under pressure
US20130174920A1 (en) * 2010-08-06 2013-07-11 Daimler Ag Device for Storing Low-Molecular Gases
FR3015629B1 (en) 2013-12-20 2016-01-29 Eads Composites Aquitaine RESERVOIR FOR STORING LIQUID OR GASEOUS MEDIA UNDER PRESSURE
FR3015630B1 (en) 2013-12-20 2016-01-29 Eads Composites Aquitaine RESERVOIR FOR STORING LIQUID OR GASEOUS MEDIA UNDER PRESSURE

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FR3087245B1 (en) 2021-12-31

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