EP2414723A1 - Improvement for leaktight and thermally insulating tank integrated into a carrier structure - Google Patents

Improvement for leaktight and thermally insulating tank integrated into a carrier structure

Info

Publication number
EP2414723A1
EP2414723A1 EP10714908A EP10714908A EP2414723A1 EP 2414723 A1 EP2414723 A1 EP 2414723A1 EP 10714908 A EP10714908 A EP 10714908A EP 10714908 A EP10714908 A EP 10714908A EP 2414723 A1 EP2414723 A1 EP 2414723A1
Authority
EP
European Patent Office
Prior art keywords
thermal insulation
layer
barrier
sealing barrier
improvement according
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.)
Ceased
Application number
EP10714908A
Other languages
German (de)
French (fr)
Inventor
Bruno Guelton
Raphaël PRUNIER
Christophe Huon De Kermadec
Bruno Deletre
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.)
Gaztransport et Technigaz SA
Original Assignee
Gaztransport et Technigaz SA
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 Gaztransport et Technigaz SA filed Critical Gaztransport et Technigaz SA
Priority to EP16190487.5A priority Critical patent/EP3156714B1/en
Priority to EP14155237.2A priority patent/EP2733410A3/en
Publication of EP2414723A1 publication Critical patent/EP2414723A1/en
Ceased legal-status Critical Current

Links

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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F17C3/027—Wallpanels for so-called membrane tanks
    • 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
    • F17C2201/052—Size large (>1000 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • 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
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0358—Thermal insulations by solid means in form of panels
    • 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
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/228—Assembling processes by screws, bolts or rivets
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • 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
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/016—Preventing slosh
    • 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
    • F17C2270/0107—Wall panels

Definitions

  • the present invention relates to an improvement for a sealed and thermally insulating tank integrated into a supporting structure.
  • a tank is known waterproof and insulating which is integrated in a supporting structure, including ship, and which comprises two successive sealing barriers: one primary, in contact with the product contained in the tank and the other secondary disposed between the barrier of primary sealing and the supporting structure. Between these two sealing barriers, on the one hand, and between the secondary sealing barrier, on the other hand, is disposed at least one thermally insulating barrier.
  • the primary sealing barrier is made of metal and the secondary metal or composite sealing barrier may comprise a metal core.
  • the thermally insulating barriers are made in the form of modules, or panels, juxtaposed, of general polygonal shape, whose thickness is determined according to the desired insulating power. These modules include a cover and a bottom designated indistinctly by the term “plate”.
  • the term "primary thermally insulating barrier” designates that on which the primary sealing barrier rests, and the term “secondary thermal barrier” means that on which the secondary sealing barrier rests.
  • the primary thermally insulating barrier can also undergo degradation of both the thermal insulation layer, the rigid plate constituting the support of this primary thermal insulation barrier.
  • Another object of the invention is to provide such an improvement which results in as little structural modification as possible.
  • An additional aim of such an improvement is not to substantially increase the cost of such a tank.
  • Another object of the invention is to provide such an improvement which makes it possible to improve, at an acceptable cost, the sealed insulating tanks integrated in a supporting structure.
  • the thermal insulation barrier is constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plate, for example plywood, surmounted by a first layer thermal insulation, itself surmounted by a sealing barrier, itself attached to the upper plate of the secondary insulation, on which is disposed a second layer of thermal insulation which itself carries a second plate plywood, on which rests in a known way the primary sealing barrier constituted by strakes or metal plates, the damping device is located under the primary sealing barrier and is constituted by the second plate which is composed by the two walls between which is disposed the layer of damping material.
  • the thermal insulation barrier being constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plate, for example plywood, surmounted by a first layer thermal insulation, itself surmounted by a sealing barrier on which is arranged a second thermal insulation layer which itself carries a second plate, for example of plywood, on which in a known manner the barrier primary sealing formed by strakes or metal plate, the damping device is located under the gate of secondary sealing.
  • the damping device is disposed between the secondary sealing barrier and the second layer of thermal insulation.
  • the damping device is disposed between the first plate and the first layer of thermal insulation.
  • a deflection means depressing between the first and the second wall and passing through the layer of damping material.
  • the depression means is inserted into cavities respectively formed in the two walls, T-shaped, the free ends of the vertical bar of the T facing each other, and an H bar being disposed in the space thus delimited.
  • the driving deflection means is inserted into cells, respectively formed in one of the walls and the other in the second layer of thermal insulation, T-shaped, the free ends of the vertical bar of the T facing each other, and an H bar being disposed in the space thus delimited.
  • the junctions between first walls are offset from those of the second.
  • this junction between the first walls is identical to that between the blades of an English floor.
  • the second wall has a modulus of elasticity at least ten percent lower than that of current materials.
  • the two walls have a thickness of between 9 and 21 mm.
  • the two walls are fir plywood or a composite material.
  • the first plate is fixed on the wall of the carrier structure with the interposition of a mastic bead having a modulus of elasticity of at most 500 MPa at a temperature of -25 ° C. and about 150 MPa at a temperature of 25 ° C. ° C.
  • FIG. 1 shows, in section, perpendicular to the wall of a supporting structure formed by the double shell or the double transverse wall of a ship, and in an exploded position schematically showing the mounting of the different elements of a tank, according to the prior art, in a zone of the tank not close to an angle of the tank;
  • FIG. 2 shows, in section, perpendicular to the wall of a supporting structure formed by the double shell or the double transverse wall of a ship, and in an exploded position schematically showing the mounting of the various elements of a tank according to a first embodiment of the present invention, in a zone of the vessel not close to an angle of the vessel;
  • FIG. 3 represents an alternative embodiment of the present invention according to FIG. 2;
  • FIG. 4 represents a second embodiment of the present invention;
  • FIG. 5 represents a third embodiment of the present invention.
  • FIG. 6 shows a fourth embodiment of the present invention.
  • FIG. 1 denotes by reference 1, the wall of the double hull of the ship, where is installed the tank according to the invention. It is known that a ship's hull also has transverse partitions, which cut the hull into compartments, these transverse partitions being also double: in the present description the term "double wall 1" will be designated as well the wall of the double hull than the transverse walls above, which delimit such a tank.
  • the double walls 1 constitute the carrying structure of the tank described.
  • the tank is of the type comprising two sealing barriers, one primary 1 0 and the other secondary 5, and at least one thermal insulation barrier constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plate 3 topped plywood with a first thermal insulating layer 4, itself surmounted by the primary sealing barrier 5 on which is arranged a second layer of thermal insulation 6 which itself carries a second plywood plate 7, on which rests in known manner the primary sealing barrier 10.
  • the secondary and primary 5 sealing barriers 10 are constituted by strakes, preferably in invar, or metal plates which can be embossed.
  • the assembly comprising the first plate 3 and the first layer of thermal insulation 4 is the modulus of the thermally insulating barrier secondary 2b; the assembly comprising the second plate 7 and the second layer of thermal insulation 6 constitutes the module of the primary thermally insulating barrier 2a.
  • the modules 2a and 2b have substantially the shape of a rectangular parallelepiped.
  • the module 2a has, seen in plan, a rectangular shape whose sides are parallel to those of the module 2b: seen in plan, the two modules 2a and 2b have the form of offset rectangles, in order to limit thermal leakage and to ensure a better distribution of efforts.
  • the damping device is placed under the primary sealing barrier 10 and consists of the second plate 7, on which the primary sealing barrier rests. 10, itself constituted by a sandwich assembly which comprises:
  • a first wall 8 made of a plywood and / or a composite material and supporting the primary sealing barrier;
  • the plywood constituting the first wall 8 and the second wall 9 has a thickness of between 9 and 21 mm.
  • This second wall 9 has a modulus of elasticity in cold bending of between 10,000 and 13,000 MPa.
  • a plywood according to the present invention is for example a fir plywood or a composite material.
  • the modulus of elasticity of the second wall 9 is at least ten percent less than that of the walls of current materials.
  • the damping material 1 1 disposed between the two walls 8 and 9 above it has a thickness of between 2 and 15 mm, and for example 8 mm: this thickness is chosen such that, under the shock load considered, they are depreciated, on the one hand, and the crushing resulting from this damping material does not lead it to ruin, on the other hand.
  • This material may be a felt, a material based on woven or bonded fibers with or without insulating materials such as, for example, an airgel: the assembly thus produced being bonded or mechanically assembled.
  • the damping device is disposed under the secondary sealing barrier 5. It consists of two walls 8 'and 9' as previously described between which is interposed a layer 1 1 of damping material In this case, one of the walls, that referenced 9 'in this case, is based on the first layer of insulating material 4, and the other wall 8' is surmounted by the secondary sealing barrier 5
  • junctions between the first walls 8 or 8 ' are offset with respect to those of the second walls 9 or 9' so as to ensure a better mechanical continuity of the insulating mass.
  • This junction between the first walls 8 or 8 ' is for example identical to that between the blades of an English floor
  • first wall 8 and the second wall 9 there is disposed between the first wall 8 and the second wall 9, and thus passing through the layer of damping material January 1, means of deflection depression
  • means of deflection depression include, according to the present example embodiment, two cells, 12a and 12b respectively, T-shaped connected by the vertical bar T and a bar 13 H being disposed in the space thus defined
  • the cell 12b is situated, not in the second wall 9, but in the second thermal insulator layer 6 of the module 2a constituting the primary thermally insulating barrier.
  • the damping device 7 is disposed above the second sealing barrier 5 and therefore under the second layer of thermal insulation 6
  • the damping device 7 is situated between the first plate 3 of the secondary thermally insulating barrier module 2b and the first thermal insulation layer 4 of the same module 2b.
  • the first plate 3 is fixed on the wall 1 of the support structure with the interposition of a mastic bead 14 having a modulus of elasticity of at most 500 MPa at a temperature of -25. C. and about 150 MPa at a temperature of 25 ° C.
  • the damping of a tank comprising the improvement according to the present invention is at least three times greater than that according to the present structures, this effect being carried out on the liquid side conveys

Abstract

This tank is of the type that comprises two sealing barriers, one primary (10) and the other secondary (5), and at least one thermal insulation barrier, each consisting of a module basically shaped as a rectangular parallelepiped and comprising a first plywood sheet (3) covered by a first layer of thermal insulation (4) which is then covered by a sealing barrier (5) on which is made a second layer of thermal insulation (6), on which in turn is a second plywood sheet (7), on which, in a known manner, the primary sealing barrier (10), consisting of strakes or metal plates rests. The second plate (7) is made up of two walls, a first wall (8) supporting the primary sealing barrier and a second wall (9), with a layer of damping material (11) between them. Applicable particularly to shipbuilding.

Description

Perfectionnement pour cuve étanche et thermiquement isolante intégrée dans une structure porteuse. Improvement for waterproof and thermally insulating tank integrated into a supporting structure.
La présente invention est relative à un perfectionnement pour cuve étanche et thermiquement isolante intégrée dans une structure porteuse.The present invention relates to an improvement for a sealed and thermally insulating tank integrated into a supporting structure.
D'après les documents FR-2 527 544-A, FR-1 376 525-A, FR-1 379 651 -A, FR-2 724 623-A et FR-2 798 902-A, il est connu une cuve étanche et isolante qui est intégrée dans une structure porteuse, notamment de navire, et qui comporte deux barrières d'étanchéité successives : l'une primaire, au contact avec le produit contenu dans la cuve et l'autre secondaire disposée entre la barrière d'étanchéité primaire et la structure porteuse. Entre ces deux barrières d'étanchéité, d'une part, et entre la barrière d'étanchéité secondaire, d'autre part, est disposée au moins une barrière thermiquement isolante. La barrière d'étanchéité primaire est, selon ces documents, métallique et la barrière d'étanchéité secondaire métallique ou en un matériau composite pouvant comporter une âme métallique. Les barrières thermiquement isolantes sont réalisées sous forme de modules, ou panneaux, juxtaposés, de forme générale polygonale, dont l'épaisseur est déterminée en fonction du pouvoir isolant recherché. Ces modules comportent un couvercle et un fond désignés indistinctement par le terme « plaque ». On désigne par l'expression barrière thermiquement isolante primaire celle sur laquelle repose la barrière d'étanchéité primaire, et par l'expression barrière thermiquement isolante secondaire celle sur laquelle repose la barrière d'étanchéité secondaire. A l'usage, il a été constaté une détérioration de la barrière d'étanchéité primaire, constituée par des virures métalliques, notamment provoquée par le clapotement ou, selon la terminologie anglo-saxonne, « sloshing » en particulier au plafond des cuves ou dans la zone de talus et au-dessus de ceux-ci. De plus, la barrière thermiquement isolante primaire peut subir elle aussi des dégradations tant de la couche d'isolant thermique, que de la plaque rigide constituant le support de cette barrière thermiquement isolation primaire.According to the documents FR-2 527 544-A, FR-1 376 525-A, FR-1 379 651-A, FR-2 724 623-A and FR-2 798 902-A, a tank is known waterproof and insulating which is integrated in a supporting structure, including ship, and which comprises two successive sealing barriers: one primary, in contact with the product contained in the tank and the other secondary disposed between the barrier of primary sealing and the supporting structure. Between these two sealing barriers, on the one hand, and between the secondary sealing barrier, on the other hand, is disposed at least one thermally insulating barrier. According to these documents, the primary sealing barrier is made of metal and the secondary metal or composite sealing barrier may comprise a metal core. The thermally insulating barriers are made in the form of modules, or panels, juxtaposed, of general polygonal shape, whose thickness is determined according to the desired insulating power. These modules include a cover and a bottom designated indistinctly by the term "plate". The term "primary thermally insulating barrier" designates that on which the primary sealing barrier rests, and the term "secondary thermal barrier" means that on which the secondary sealing barrier rests. In use, it has been found a deterioration of the primary sealing barrier constituted by metal strakes, in particular caused by sloughing or, according to the English terminology, "sloshing" in particular on the ceiling of the tanks or in the embankment area and above them. In addition, the primary thermally insulating barrier can also undergo degradation of both the thermal insulation layer, the rigid plate constituting the support of this primary thermal insulation barrier.
Mais, de même, il a été parfois constaté une détérioration de la barrière d'étanchéité secondaire et/ou de la barrière thermiquement isolante secondaire.But, likewise, it has sometimes been found a deterioration of the secondary sealing barrier and / or the secondary thermally insulating barrier.
Aussi un des buts de la présente invention est-il de fournir un perfectionnement pour de telles cuves étanches et thermiquement isolantes intégrées dans une structure porteuse telle qu'une coque de navire, qui permet d'éviter ou tout au moins de limiter l'endommagement de la cuve comme rapporté ci-dessus.It is therefore an object of the present invention to provide an improvement for such sealed and thermally insulating vessels integrated into a supporting structure such as a ship's hull, which makes it possible to avoid or at least to limit damage. of the tank as reported above.
Un autre but de l'invention est de fournir un tel perfectionnement qui entraîne aussi peu de modification structurelle que possible. Un but supplémentaire d'un tel perfectionnement est de ne pas augmenter sensiblement le coût d'une telle cuve.Another object of the invention is to provide such an improvement which results in as little structural modification as possible. An additional aim of such an improvement is not to substantially increase the cost of such a tank.
Un autre but de l'invention est de fournir un tel perfectionnement qui permet d'améliorer, à un coût acceptable, les cuves isolantes étanches intégrées dans une structure porteuse.Another object of the invention is to provide such an improvement which makes it possible to improve, at an acceptable cost, the sealed insulating tanks integrated in a supporting structure.
Ces buts, ainsi que d'autres qui apparaîtront par la suite, sont atteints par un perfectionnement pour cuve étanche et thermiquement isolante intégrée dans une structure porteuse constituée par une double paroi, laquelle cuve est du genre comportant deux barrières d'étanchéité, l'une primaire et l'autre secondaire, et au moins une barrière d'isolation thermique rendue solidaire de la structure porteuse, dans laquelle est située la barrière d'étanchéité secondaire et sur laquelle repose la barrière d'étanchéité primaire, lequel perfectionnement est, selon la présente invention, caractérisé par le fait qu'il comprend un dispositif amortissant constitué d'une couche de matériau amortissant disposée entre deux parois. Selon un premier mode de réalisation de l'invention, la barrière d'isolation thermique étant constituée par un module, qui a sensiblement la forme d'un parallélépipède rectangle et comprend une première plaque, par exemple de contreplaqué, surmontée d'une première couche d'isolant thermique, elle-même surmontée d'une barrière d'étanchéité, elle-même fixée à la plaque supérieure de l'isolant secondaire, sur laquelle est disposée une deuxième couche d'isolant thermique qui porte elle-même une deuxième plaque de contreplaqué, sur laquelle repose de façon connue la barrière d'étanchéité primaire constituée par des virures ou des plaque métalliques, le dispositif amortissant est situé sous la barrière d'étanchéité primaire et est constitué par la deuxième plaque qui est composée par les deux parois entre lesquelles est disposée la couche de matériau amortissant .These and other objects which will appear later are achieved by an improvement for a sealed and thermally insulating tank integrated in a supporting structure constituted by a double wall, which tank is of the kind comprising two sealing barriers, the one primary and one secondary, and at least one thermal insulation barrier secured to the supporting structure, in which is located the secondary sealing barrier and on which rests the primary sealing barrier, which improvement is, according to the present invention, characterized in that it comprises a damping device consisting of a layer of damping material disposed between two walls. According to a first embodiment of the invention, the thermal insulation barrier is constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plate, for example plywood, surmounted by a first layer thermal insulation, itself surmounted by a sealing barrier, itself attached to the upper plate of the secondary insulation, on which is disposed a second layer of thermal insulation which itself carries a second plate plywood, on which rests in a known way the primary sealing barrier constituted by strakes or metal plates, the damping device is located under the primary sealing barrier and is constituted by the second plate which is composed by the two walls between which is disposed the layer of damping material.
Selon un deuxième mode de réalisation de la présente invention, la barrière d'isolation thermique étant constituée par un module, qui a sensiblement la forme d'un parallélépipède rectangle et comprend une première plaque, par exemple de contreplaqué, surmontée d'une première couche d'isolant thermique, elle-même surmontée d'une barrière d'étanchéité sur laquelle est disposée une deuxième couche d'isolant thermique qui porte elle-même une deuxième plaque, par exemple de contreplaqué, sur laquelle repose de façon connue la barrière d'étanchéité primaire constituée par des virures ou des plaque métalliques, le dispositif amortissant est situé sous la barrière d'étanchéité secondaire. Selon un troisième mode réalisation de la présenter invention, le dispositif amortissant est disposé entre la barrière d'étanchéité secondaire et la deuxième couche d'isolant thermique.According to a second embodiment of the present invention, the thermal insulation barrier being constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plate, for example plywood, surmounted by a first layer thermal insulation, itself surmounted by a sealing barrier on which is arranged a second thermal insulation layer which itself carries a second plate, for example of plywood, on which in a known manner the barrier primary sealing formed by strakes or metal plate, the damping device is located under the gate of secondary sealing. According to a third embodiment of the present invention, the damping device is disposed between the secondary sealing barrier and the second layer of thermal insulation.
Selon un quatrième mode réalisation de la présenter invention, le dispositif amortissant est disposé entre la première plaque et la première couche d'isolant thermique.According to a fourth embodiment of the present invention, the damping device is disposed between the first plate and the first layer of thermal insulation.
Avantageusement, entre la première et la seconde paroi et traversant la couche de matériau amortissant, est disposé un moyen de débattement d'enfoncement.Advantageously, between the first and the second wall and passing through the layer of damping material, is disposed a deflection means depressing.
De préférence, le moyen de débattement d'enfoncement est inséré dans des alvéoles respectivement ménagées dans les deux parois, en forme de T, les extrémités libres de la barre verticale du T se faisant face, et une barre en H étant disposée dans l'espace ainsi délimité.Preferably, the depression means is inserted into cavities respectively formed in the two walls, T-shaped, the free ends of the vertical bar of the T facing each other, and an H bar being disposed in the space thus delimited.
Selon une variante de réalisation, le moyen de débattement d'enfoncement est inséré dans des alvéoles, respectivement ménagées l'une dans une des parois et l'autre dans la deuxième couche d'isolant thermique, en forme de T, les extrémités libres de la barre verticale du T se faisant face, et une barre en H étant disposée dans l'espace ainsi délimité.According to an alternative embodiment, the driving deflection means is inserted into cells, respectively formed in one of the walls and the other in the second layer of thermal insulation, T-shaped, the free ends of the vertical bar of the T facing each other, and an H bar being disposed in the space thus delimited.
Avantageusement, les jonctions entre des premières parois sont décalées par rapport à celles des secondes. De préférence, cette jonction entre les premières parois est identique à celle entre les lames d'un parquet anglais.Advantageously, the junctions between first walls are offset from those of the second. Preferably, this junction between the first walls is identical to that between the blades of an English floor.
Avantageusement, la seconde paroi présente un module d'élasticité inférieur d'au moins dix pour cent par rapport à celui des matériaux actuels.Advantageously, the second wall has a modulus of elasticity at least ten percent lower than that of current materials.
De préférence, les deux parois ont une épaisseur comprise entre 9 et 21 mm. Selon un mode de réalisation préféré de la présente invention, les deux parois sont en contreplaqué de sapin ou en un matériau composite.Preferably, the two walls have a thickness of between 9 and 21 mm. According to a preferred embodiment of the present invention, the two walls are fir plywood or a composite material.
Avantageusement, la première plaque est fixée sur la paroi de la structure porteuse avec interposition d'un cordon de mastic ayant un module d'élasticité au maximum de 500MPA à une température de -250C et d'environ 150MPa à une température de 25°C.Advantageously, the first plate is fixed on the wall of the carrier structure with the interposition of a mastic bead having a modulus of elasticity of at most 500 MPa at a temperature of -25 ° C. and about 150 MPa at a temperature of 25 ° C. ° C.
La description qui va suivre et qui ne présente aucun caractère limitatif, doit être lue en regard des figures annexées parmi lesquelles :The following description, which has no limiting character, should be read with reference to the appended figures among which:
- la figure 1 représente, en coupe, perpendiculairement à la paroi d'une structure porteuse constituée par la double coque ou la double paroi transversale d'un navire, et dans une position éclatée figurant schématiquement le montage des différents éléments d'une cuve, selon l'art antérieur, dans une zone de ia cuve non voisine d'un angle de la cuve ;- Figure 1 shows, in section, perpendicular to the wall of a supporting structure formed by the double shell or the double transverse wall of a ship, and in an exploded position schematically showing the mounting of the different elements of a tank, according to the prior art, in a zone of the tank not close to an angle of the tank;
- la figure 2 représente, en coupe, perpendiculairement à ia paroi d'une structure porteuse constituée par la double coque ou la double paroi transversale d'un navire, et dans une position éclatée figurant schématiquement le montage des différents éléments d'une cuve selon un premier mode de réalisation de ia présente invention, dans une zone de la cuve non voisine d'un angle de la cuve ;- Figure 2 shows, in section, perpendicular to the wall of a supporting structure formed by the double shell or the double transverse wall of a ship, and in an exploded position schematically showing the mounting of the various elements of a tank according to a first embodiment of the present invention, in a zone of the vessel not close to an angle of the vessel;
- la figure 3 représente une variante de réalisation de la présente invention selon la figure 2 ; - la figure 4 représente un deuxième mode de réalisation de la présente invention ;FIG. 3 represents an alternative embodiment of the present invention according to FIG. 2; FIG. 4 represents a second embodiment of the present invention;
- la figure 5 représente un troisième mode de réalisation de la présente invention ; et,FIG. 5 represents a third embodiment of the present invention; and,
- la figure 6 représente un quatrième mode de réalisation de la présente invention.- Figure 6 shows a fourth embodiment of the present invention.
Les éléments identiques dans les figures sont désignés par les mêmes références.The identical elements in the figures are designated by the same references.
En se référant notamment à la figure 1 , on désigne par la référence 1 , la paroi de la double coque du navire, où est installée la cuve selon l'invention. On sait qu'une coque de navire comporte aussi des cloisons transversales, qui découpent la coque en compartiments, ces cloisons transversales étant également doubles : dans la présente description par le terme « paroi double 1 » sera désignée aussi bien la paroi de la double coque que les parois transversales ci-dessus, qui délimitent une telle cuve. Les parois doubles 1 constituent la structure porteuse de la cuve décrite. La cuve est du genre comportant deux barrières d'étanchéité, l'une primaire 1 0 et l'autre secondaire 5, et au moins une barrière d'isolation thermique constituée par un module, qui a sensiblement la forme d'un parallélépipède rectangle et comprend une première plaque 3 de contreplaqué surmontée d'une première couche d'isolant thermique 4, elle-même surmontée de la barrière d'étanchéité primaire 5 sur laquelle est disposée une deuxième couche d'isolant thermique 6 qui porte elle-même une deuxième plaque de contreplaqué 7, sur laquelle repose de façon connue la barrière d'étanchéité primaire 10. Les barrières d'étanchéité secondaire 5 et primaire 10 sont constituées par des virures, de préférence en invar, ou des plaques métalliques qui peuvent être gaufrées. L'ensemble comprenant la première plaque 3 et la première couche d'isolant thermique 4 constitue le module de la barrière thermiquement isolante secondaire 2b ; l'ensemble comprenant la deuxième plaque 7 et la deuxième couche d'isolant thermique 6 constitue le module de la barrière thermiquement isolante primaire 2a.Referring in particular to Figure 1, denotes by reference 1, the wall of the double hull of the ship, where is installed the tank according to the invention. It is known that a ship's hull also has transverse partitions, which cut the hull into compartments, these transverse partitions being also double: in the present description the term "double wall 1" will be designated as well the wall of the double hull than the transverse walls above, which delimit such a tank. The double walls 1 constitute the carrying structure of the tank described. The tank is of the type comprising two sealing barriers, one primary 1 0 and the other secondary 5, and at least one thermal insulation barrier constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plate 3 topped plywood with a first thermal insulating layer 4, itself surmounted by the primary sealing barrier 5 on which is arranged a second layer of thermal insulation 6 which itself carries a second plywood plate 7, on which rests in known manner the primary sealing barrier 10. The secondary and primary 5 sealing barriers 10 are constituted by strakes, preferably in invar, or metal plates which can be embossed. The assembly comprising the first plate 3 and the first layer of thermal insulation 4 is the modulus of the thermally insulating barrier secondary 2b; the assembly comprising the second plate 7 and the second layer of thermal insulation 6 constitutes the module of the primary thermally insulating barrier 2a.
Ainsi que l'aura compris l'homme du métier, les modules 2a et 2b ont sensiblement la forme de parallélépipède rectangle. Le module 2a a, vu en plan, une forme rectangulaire dont les côtés sont parallèles à ceux du module 2b : vu en plan, les deux modules 2a et 2b ont la forme de rectangles décalés, afin de limiter les fuite thermiques et d'assurer une meilleure répartition des efforts.As will be understood by those skilled in the art, the modules 2a and 2b have substantially the shape of a rectangular parallelepiped. The module 2a has, seen in plan, a rectangular shape whose sides are parallel to those of the module 2b: seen in plan, the two modules 2a and 2b have the form of offset rectangles, in order to limit thermal leakage and to ensure a better distribution of efforts.
Selon un premier mode de réalisation de la présente invention telle que représentée aux figures 2 et 3, le dispositif amortissant est disposé sous la barrière d'étanchéité primaire 10 et est constitué par la deuxième plaque 7, sur laquelle repose la barrière d'étanchéité primaire 10, elle-même constituée par un ensemble sandwich qui comprend :According to a first embodiment of the present invention as represented in FIGS. 2 and 3, the damping device is placed under the primary sealing barrier 10 and consists of the second plate 7, on which the primary sealing barrier rests. 10, itself constituted by a sandwich assembly which comprises:
- une première paroi 8 réalisée en un contreplaqué et/ou en un matériau composite et supportant la barrière d'étanchéité primaire;- A first wall 8 made of a plywood and / or a composite material and supporting the primary sealing barrier;
- une couche 1 1 d'un matériau amortissant ; et,a layer 1 1 of damping material; and,
- une seconde paroi 9 réalisée en un contreplaqué disposée au-dessus de la couche d'isolant thermique 6.- A second wall 9 made of a plywood disposed above the thermal insulation layer 6.
Le contreplaqué constituant la première paroi 8 et la seconde paroi 9 a une épaisseur comprise entre 9 et 21 mm. Cette seconde paroi 9 présente un module d'élasticité en flexion à froid compris entre 10 000 et 13 000 MPA. Un contreplaqué conforme à la présente invention est par exemple un contreplaqué de sapin ou en un matériau composite. Le module d'élasticité de la seconde paroi 9 est d'au moins dix pour cent inférieur à celui des parois en matériaux actuels. Quant au matériau amortissant 1 1 disposé entre les deux parois 8 et 9 ci- dessus, il a une épaisseur comprise entre 2 et 15 mm, et par exemple de 8 mm : cette épaisseur est choisie de telle manière que, sous la sollicitation aux chocs considérés, ceux-ci soient amortis, d'une part, et que l'écrasement résultant de ce matériau amortissant ne mène pas celui-ci à la ruine, d'autre part. Ce matériau peut être un feutre, un matériau à base de fibres tissées ou liées chargé ou non de matériaux isolants tels que, par exemple, un aérogel : l'ensemble ainsi réalisé étant collé ou mécaniquement assemblé.The plywood constituting the first wall 8 and the second wall 9 has a thickness of between 9 and 21 mm. This second wall 9 has a modulus of elasticity in cold bending of between 10,000 and 13,000 MPa. A plywood according to the present invention is for example a fir plywood or a composite material. The modulus of elasticity of the second wall 9 is at least ten percent less than that of the walls of current materials. As for the damping material 1 1 disposed between the two walls 8 and 9 above, it has a thickness of between 2 and 15 mm, and for example 8 mm: this thickness is chosen such that, under the shock load considered, they are depreciated, on the one hand, and the crushing resulting from this damping material does not lead it to ruin, on the other hand. This material may be a felt, a material based on woven or bonded fibers with or without insulating materials such as, for example, an airgel: the assembly thus produced being bonded or mechanically assembled.
Selon un deuxième mode de réalisation de la présente invention, le dispositif amortissant est disposé sous la barrière d'étanchéité secondaire 5. Il est constitué de deux parois 8' et 9' telles que décrites précédemment entre lesquelles est interposée une couche 1 1 de matériau amortissant Dans ce cas, une des parois, celle référencée 9' en l'occurrence, repose sur la première couche de matériau isolant 4, et l'autre paroi 8' est surmontée par la barrière d étancheite secondaire 5According to a second embodiment of the present invention, the damping device is disposed under the secondary sealing barrier 5. It consists of two walls 8 'and 9' as previously described between which is interposed a layer 1 1 of damping material In this case, one of the walls, that referenced 9 'in this case, is based on the first layer of insulating material 4, and the other wall 8' is surmounted by the secondary sealing barrier 5
Les jonctions entre les premières parois 8 ou 8' sont décalées par rapport a celles des secondes parois 9 ou 9' de façon à assurer une meilleure continuité mécanique du massif isolant Cette jonction entre les premières parois 8 ou 8' est par exemple identique à celle entre les lames d'un parquet anglaisThe junctions between the first walls 8 or 8 'are offset with respect to those of the second walls 9 or 9' so as to ensure a better mechanical continuity of the insulating mass. This junction between the first walls 8 or 8 'is for example identical to that between the blades of an English floor
Selon une variante de réalisation de la présente invention, on dispose entre la première paroi 8 et la seconde paroi 9, et traversant donc la couche de matériau amortissant 1 1 , de moyens de débattement d'enfoncement Ceux-ci comprennent, selon le présent exemple de réalisation, deux alvéoles, 12a et 12b respectivement, en forme de T reliées par la barre verticale du T et une barre 13 en H étant disposée dans l'espace ainsi délimitéAccording to an alternative embodiment of the present invention, there is disposed between the first wall 8 and the second wall 9, and thus passing through the layer of damping material January 1, means of deflection depression These include, according to the present example embodiment, two cells, 12a and 12b respectively, T-shaped connected by the vertical bar T and a bar 13 H being disposed in the space thus defined
Selon une variante de réalisation représentée à la figure 3, l'alvéole 12b est située, non dans la seconde paroi 9, mais dans la deuxième couche d'isolant thermique 6 du module 2a constituant la barrière thermiquement isolante primaireAccording to an alternative embodiment shown in FIG. 3, the cell 12b is situated, not in the second wall 9, but in the second thermal insulator layer 6 of the module 2a constituting the primary thermally insulating barrier.
II peut en être de même lorsque le dispositif amortisseur selon la présente invention est situé sous la barrière d'étanchéité secondaire 5It can be the same when the damping device according to the present invention is located under the secondary sealing barrier 5
Selon la figure 5 relative à un troisième de réalisation,, le dispositif amortissant 7 est disposé au-dessus de la seconde barrière d'étanchéité 5 et donc sous la seconde couche d'isolant thermique 6According to Figure 5 relating to a third embodiment, the damping device 7 is disposed above the second sealing barrier 5 and therefore under the second layer of thermal insulation 6
Selon le quatrième mode de réalisation représentée à la figure 6, le dispositif amortissant 7 est situé entre la première plaque 3 du module de la barrière thermiquement isolante secondaire 2b et la première couche d'isolant thermique 4 de ce même module 2bAccording to the fourth embodiment shown in FIG. 6, the damping device 7 is situated between the first plate 3 of the secondary thermally insulating barrier module 2b and the first thermal insulation layer 4 of the same module 2b.
Afin d'améliorer encore l'amortissement des chocs, la première plaque 3 est fixée sur la paroi 1 de la structure porteuse avec interposition d'un cordon de mastic 14 ayant un module d'élasticité au maximum de 500MPa a une température de -25CC et d'environ 150MPa à une température de 25°C L'amortissement d'une cuve comportant le perfectionnement selon la présente invention est au moins trois fois supérieur a celui selon les structures actuelles cet effet étant réalise côté liquide transporte In order to further improve shock absorption, the first plate 3 is fixed on the wall 1 of the support structure with the interposition of a mastic bead 14 having a modulus of elasticity of at most 500 MPa at a temperature of -25. C. and about 150 MPa at a temperature of 25 ° C. The damping of a tank comprising the improvement according to the present invention is at least three times greater than that according to the present structures, this effect being carried out on the liquid side conveys

Claims

REVENDICATIONS
1. - Perfectionnement pour cuve étanche et thermiquement isolante intégrée dans une structure porteuse (1 ) constituée par une double paroi, laquelle cuve étant du genre comportant deux barrières d'étanchéité, l'une primaire (10) et l'autre secondaire (5), et au moins une barrière d'isolation thermique rendue solidaire de la structure porteuse (1 ), dans laquelle est située la barrière d'étanchéité secondaire (5) et sur laquelle repose la barrière d'étanchéité primaire (10), caractérisé par le fait qu'il comprend un dispositif amortissant constitué d'une couche de matériau amortissant disposée entre deux parois.1. - Improvement for sealed and thermally insulating tank integrated in a supporting structure (1) constituted by a double wall, which tank being of the kind comprising two sealing barriers, one primary (10) and the other secondary (5). ), and at least one thermal insulation barrier secured to the supporting structure (1), in which the secondary sealing barrier (5) is located and on which the primary sealing barrier (10), characterized by the fact that it comprises a damping device consisting of a layer of damping material disposed between two walls.
2. - Perfectionnement selon la revendication 1 , caractérisé par le fait que, la barrière d'isolation thermique étant constituée par un module, qui a sensiblement la forme d'un parallélépipède rectangle et comprend une première plaque de contreplaqué surmontée d'une première couche d'isolant thermique, elle-même surmontée d'une barrière d'étanchéité sur laquelle est disposée une deuxième couche d'isolant thermique qui porte elle-même une deuxième plaque de contreplaqué, sur laquelle repose de façon connue la barrière d'étanchéité primaire constituée par des virures ou des plaque métalliques, le dispositif amortissant est situé sous la barrière d'étanchéité primaire (10) et est constitué par la deuxième plaque qui est composée par les deux parois entre lesquelles est disposée la couche de matériau amortissant .2. - Improvement according to claim 1, characterized in that, the thermal insulation barrier being constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plywood plate surmounted by a first layer thermal insulation, itself surmounted by a sealing barrier on which is disposed a second layer of thermal insulation which itself carries a second plywood plate, on which rests in known manner the primary sealing barrier formed by strakes or metal plates, the damping device is located under the primary sealing barrier (10) and is constituted by the second plate which is composed by the two walls between which is disposed the layer of damping material.
3. - Perfectionnement selon la revendication 1 , caractérisé par le fait que, la barrière d'isolation thermique étant constituée par un module, qui a sensiblement la forme d'un parallélépipède rectangle et comprend une première plaque de contreplaqué surmontée d'une première couche d'isolant thermique, elle-même surmontée d'une barrière d'étanchéité sur laquelle est disposée une deuxième couche d'isolant thermique qui porte elle-même une deuxième plaque de contreplaqué, sur laquelle repose de façon connue la barrière d'étanchéité primaire constituée par des virures ou des plaque métalliques, le dispositif amortissant est situé sous la barrière d'étanchéité secondaire (5). 3. - Improvement according to claim 1, characterized in that, the thermal insulation barrier being constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plywood plate surmounted by a first layer thermal insulation, itself surmounted by a sealing barrier on which is disposed a second layer of thermal insulation which itself carries a second plywood plate, on which rests in known manner the primary sealing barrier consisting of strakes or metal plates, the damping device is located under the secondary sealing barrier (5).
4. - Perfectionnement selon la revendication 1 , caractérisé par le fait que, la barrière d'isolation thermique étant constituée par un module, qui a sensiblement la forme d'un parallélépipède rectangle et comprend une première plaque de contreplaqué surmontée d'une première couche d'isolant thermique, elle-même surmontée d'une barrière d'étanchéité sur laquelle est disposée une deuxième couche d'isolant thermique qui porte elle-même une deuxième plaque de contreplaqué. sur laquelle repose de façon connue la barrière d'étanchéité primaire constituée par des virures ou des plaques métalliques, le dispositif amortissant est situé ente la barrière d'étanchéité secondaire (5) et la seconde couche d'isolant thermique (6).4. - Improvement according to claim 1, characterized in that, the thermal insulation barrier being constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plywood plate surmounted by a first layer thermal insulation, itself surmounted by a sealing barrier on which is arranged a second thermal insulation layer which itself carries a second plywood plate. sure which rests in known manner the primary sealing barrier consisting of strakes or metal plates, the damping device is located between the secondary sealing barrier (5) and the second layer of thermal insulation (6).
5. - Perfectionnement selon la revendication 1 , caractérisé par le fait que, la barrière d'isolation thermique étant constituée par un module, qui a sensiblement la forme d'un parallélépipède rectangle et comprend une première plaque de contreplaqué surmontée d'une première couche d'isolant thermique, elle-même surmontée d'une barrière d'étanchéité sur laquelle est disposée une deuxième couche d'isolant thermique qui porte elle-même une deuxième plaque de contreplaqué, sur laquelle repose de façon connue la barrière d'étanchéité primaire constituée par des virures ou des plaques métalliques, le dispositif amortissant est situé entre la première plaque (3) et la première couche d'isolant thermique (4),5. - Improvement according to claim 1, characterized in that, the thermal insulation barrier being constituted by a module, which has substantially the shape of a rectangular parallelepiped and comprises a first plywood plate surmounted by a first layer thermal insulation, itself surmounted by a sealing barrier on which is disposed a second layer of thermal insulation which itself carries a second plywood plate, on which rests in known manner the primary sealing barrier constituted by strakes or metal plates, the damping device is situated between the first plate (3) and the first thermal insulation layer (4),
6. - Perfectionnement selon l'une quelconque des revendications 1 à 5, caractérisé par le fait qu'entre entre la première (8,8') et la seconde paroi (9,9') et traversant la couche de matériau amortissant (11 ,11 ') est disposé un moyen de débattement d'enfoncement.6. - Improvement according to any one of claims 1 to 5, characterized in that between the first (8,8 ') and the second wall (9,9') and passing through the layer of damping material (11 , 11 ') is disposed a driving deflection means.
7. - Perfectionnement selon la revendication 6, caractérisé par le fait que le moyen de débattement d'enfoncement est inséré dans des alvéoles (12a) et (12b) respectivement ménagées dans les parois (8,8') et (9,9'), en forme de T, les extrémités libres de la barre verticale du T se faisant face, et une barre (13) en H étant disposée dans l'espace ainsi délimité.7. - Improvement according to claim 6, characterized in that the depression of the depressing means is inserted into cells (12a) and (12b) respectively formed in the walls (8,8 ') and (9,9'). ), T-shaped, the free ends of the vertical bar of the T facing each other, and a bar (13) H being disposed in the space thus defined.
8. - Perfectionnement selon la revendication 7, caractérisé par le fait que le moyen de débattement d'enfoncement est inséré dans des alvéoles (12a) et (12b) respectivement ménagées dans la première paroi (8,8') et dans la deuxième couche d'isolant thermique (6) en forme de T, les extrémités libres de la barre verticale du T se faisant face, et une barre (13) en H étant disposée dans l'espace ainsi délimité.8. - Improvement according to claim 7, characterized in that the depression of the depressing means is inserted into cells (12a) and (12b) respectively formed in the first wall (8,8 ') and in the second layer T-shaped thermal insulator (6), the free ends of the vertical bar of the T facing each other, and an H-bar (13) being disposed in the space thus delimited.
9. - Perfectionnement selon l'une quelconque des revendications 1 à 8, caractérisé par le fait que les jonctions entre les premières parois (8,8') sont décalées par rapport à celles des secondes parois (9,9'). 9. - Improvement according to any one of claims 1 to 8, characterized in that the junctions between the first walls (8,8 ') are offset from those of the second walls (9,9').
10. - Perfectionnement selon la revendication 9, caractérisé par le fait que cette jonction entre les premières parois (8,8') est identique à celle entre les lattes d'un parquet anglais.10. - Improvement according to claim 9, characterized in that this junction between the first walls (8,8 ') is identical to that between the slats of an English floor.
11. - Perfectionnement selon l'une quelconque des revendications 1 à 10, caractérisé par le fait que la seconde paroi (9,9') présente un module d'élasticité inférieur d'au moins dix pour cent par rapport à celui des matériaux actuels. 11. - Improvement according to any one of claims 1 to 10, characterized in that the second wall (9,9 ') has a modulus of elasticity at least ten percent lower than that of current materials .
12. - Perfectionnement selon l'une quelconque des revendications 1 à 11 , caractérisé par le fait que les deux parois (8,8') et (9,9') ont une épaisseur comprise entre 9 et 21 mm.12. - Improvement according to any one of claims 1 to 11, characterized in that the two walls (8,8 ') and (9,9') have a thickness between 9 and 21 mm.
13. - Perfectionnement selon l'une quelconque des revendications 1 à 12, caractérisé par le fait que les deux parois (8,8') et (9,9') sont en contreplaqué de sapin ou en un matériau composite.13. - Improvement according to any one of claims 1 to 12, characterized in that the two walls (8,8 ') and (9,9') are fir plywood or a composite material.
14. - Perfectionnement selon l'une quelconque des revendications 1 à 13, caractérisé par le fait que la première plaque (3) est fixée sur la paroi de la structure porteuse avec interposition d'un cordon de mastic (14) ayant un module d'élasticité au maximum de 500MPa à une température de -25°C et d'environ 150MPa à une température de 25°C. 14. - Improvement according to any one of claims 1 to 13, characterized in that the first plate (3) is fixed on the wall of the supporting structure with interposition of a bead of caulk (14) having a modulus d maximum elasticity of 500 MPa at a temperature of -25 ° C and about 150 MPa at a temperature of 25 ° C.
EP10714908A 2009-04-03 2010-04-02 Improvement for leaktight and thermally insulating tank integrated into a carrier structure Ceased EP2414723A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16190487.5A EP3156714B1 (en) 2009-04-03 2010-04-02 Improvement for a sealed, thermally insulating tank built into a carrier structure
EP14155237.2A EP2733410A3 (en) 2009-04-03 2010-04-02 LNG tank with insulation panels.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0901636A FR2944087B1 (en) 2009-04-03 2009-04-03 IMPROVEMENT FOR A WATERPROOF AND THERMALLY INSULATING TANK INTEGRATED IN A CARRIER STRUCTURE
PCT/FR2010/000283 WO2010112715A1 (en) 2009-04-03 2010-04-02 Improvement for leaktight and thermally insulating tank integrated into a carrier structure

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP16190487.5A Division EP3156714B1 (en) 2009-04-03 2010-04-02 Improvement for a sealed, thermally insulating tank built into a carrier structure
EP14155237.2A Division EP2733410A3 (en) 2009-04-03 2010-04-02 LNG tank with insulation panels.

Publications (1)

Publication Number Publication Date
EP2414723A1 true EP2414723A1 (en) 2012-02-08

Family

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Application Number Title Priority Date Filing Date
EP10714908A Ceased EP2414723A1 (en) 2009-04-03 2010-04-02 Improvement for leaktight and thermally insulating tank integrated into a carrier structure
EP14155237.2A Withdrawn EP2733410A3 (en) 2009-04-03 2010-04-02 LNG tank with insulation panels.
EP16190487.5A Active EP3156714B1 (en) 2009-04-03 2010-04-02 Improvement for a sealed, thermally insulating tank built into a carrier structure

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP14155237.2A Withdrawn EP2733410A3 (en) 2009-04-03 2010-04-02 LNG tank with insulation panels.
EP16190487.5A Active EP3156714B1 (en) 2009-04-03 2010-04-02 Improvement for a sealed, thermally insulating tank built into a carrier structure

Country Status (13)

Country Link
EP (3) EP2414723A1 (en)
JP (1) JP5226152B2 (en)
KR (3) KR20120004509A (en)
CN (3) CN102388258B (en)
AU (1) AU2010231273B2 (en)
BR (1) BRPI1015110B1 (en)
ES (1) ES2789373T3 (en)
FR (1) FR2944087B1 (en)
MY (2) MY174989A (en)
PH (1) PH12014502160A1 (en)
RU (1) RU2498150C2 (en)
SG (2) SG2014012793A (en)
WO (1) WO2010112715A1 (en)

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Also Published As

Publication number Publication date
EP2733410A2 (en) 2014-05-21
CN103770905A (en) 2014-05-07
FR2944087A1 (en) 2010-10-08
KR20140034943A (en) 2014-03-20
CN107035961B (en) 2020-09-29
PH12014502160B1 (en) 2016-09-26
CN107035961A (en) 2017-08-11
CN102388258A (en) 2012-03-21
FR2944087B1 (en) 2011-04-08
ES2789373T3 (en) 2020-10-26
CN103770905B (en) 2017-03-01
SG175059A1 (en) 2011-11-28
KR20160027248A (en) 2016-03-09
MY172263A (en) 2019-11-20
WO2010112715A1 (en) 2010-10-07
KR20120004509A (en) 2012-01-12
JP2012522944A (en) 2012-09-27
EP3156714A1 (en) 2017-04-19
RU2011144258A (en) 2013-05-10
CN102388258B (en) 2020-06-12
BRPI1015110A2 (en) 2016-04-12
MY174989A (en) 2020-05-31
EP2733410A3 (en) 2018-03-14
AU2010231273A1 (en) 2011-10-27
BRPI1015110B1 (en) 2020-08-25
JP5226152B2 (en) 2013-07-03
EP3156714B1 (en) 2020-03-25
AU2010231273B2 (en) 2013-11-14
KR102062837B1 (en) 2020-01-06
RU2498150C2 (en) 2013-11-10
SG2014012793A (en) 2014-06-27
PH12014502160A1 (en) 2016-09-26

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