• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    The invention relates to a sealed tank wall, for storing a fluid, comprising: - a flat support surface (11), - a metallic waterproof membrane carried by the support surface (11), the metallic waterproof membrane comprising a plurality of strakes (21) whose cross-section comprises a flat medial portion resting on the support surface (11) and at least one raised lateral edge (23) projecting from the support surface (11), - a plurality of metal welding supports carried by the supporting surface (11), a welding support projecting above the support surface (11) between two raised edges (23) of two adjacent strakes (21), each of the two edges said surveys (23) being welded by a longitudinal welded seam weld sandwiched between said raised edges (23) to form a welded assembly, wherein the sealed membrane comprises a reinforced zone in which the assembly welded has a flexural strength in the transverse direction to resist fluid sloshing.
    公开号:FR3078136A1
    申请号:FR1851493
    申请日:2018-02-21
    公开日:2019-08-23
    发明作者:Florent Ouvrard；Bruno Deletre；Guillaume Leclere；Nicolas Leroux；Patrick Martin；Gery Canler；Guillaume De Combarieu；David Hassler；Said Lahrach；Anthony DE FARIA；Charles GIMBERT；Olivier Perrot；Romain Clemont
    申请人:Gaztransport et Technigaz SARL；
    IPC主号:
    专利说明:

    Technical area
    The invention relates to the field of sealed tanks, in particular for the storage or transport of fluids, and in particular to sealed and thermally insulating tanks for liquefied gases at low temperature.
    Sealed and thermally insulating tanks are used in particular for the storage of liquefied gas such as liquefied natural gas (LNG) or liquefied petroleum gas (LPG), which is stored, at atmospheric pressure. These tanks can be installed on the ground or on a floating structure.
    Technological background
    For example, from WO2012072906 or FR3054872, storage or transport tanks are known for liquefied gases at low temperature, the or each sealing membrane, in particular a primary sealing membrane in contact with the product contained in the tank, consists of thin metal sheets, called metal strakes, which are connected together, in a leaktight manner to ensure the tightness of the tank.
    FIG. 2 illustrates a known method of fixing said metal strakes to the thermally insulating barrier in this type of tank. In this FIG. 2, a so-called upper support surface 101 of the thermally insulating barrier has a groove 102 developing in the thickness of the thermally insulating barrier from the support surface 101. This groove 102 present in the thickness of the barrier thermally insulating a retaining zone 103 which develops parallel to the support surface 101. This retaining zone 103 develops at an end of the groove 102 opposite the support surface 101 in the thickness of the thermal barrier insulating. The groove 102 then has a cross-section in the shape of an “L”, the base of which is formed by the retaining zone 103. A welding support 104, comprising a base and a branch connected to the base so as to form an L, is slidably inserted into the groove 102. The base 105 is housed in the retaining zone 103 so as to retain the weld support 104 on the thermally insulating barrier in a direction perpendicular to the support surface 101. The branch 106 of the weld support 104 comprises a lower part 107 which is contiguous with the base 105 and an upper part 108 which projects above the support surface 101.
    Two metal strakes 109 are arranged on either side of the weld support 104. These metal strakes 109 each have a flat central portion 110 bearing on the support surface 101 (for the sake of readability of the figure, the surface of support 101 and the metal strakes 109 are shown in FIG. 2 with a difference). These metal strakes also have raised lateral edges, hereinafter called raised edges 111. A raised edge 111 of each of the two adjacent metal straps 109 is welded on either side of the branch 106 of the welding support 104.
    The raised edges 111 thus form with the weld support 104 deformable bellows making it possible to absorb the forces associated with the contraction of the waterproof membrane, for example during a loading of cryogenic liquid into the tank.
    FIG. 3 also illustrates a known method of fixing said metal strakes 109 on the thermally insulating barrier in this type of tank. This method of attachment differs from the method of attachment of FIG. 2 by the shape of the weld support 104 and the shape of the groove 102. In fact, the base 105 of the weld support 104 is here of rounded shape and the groove 102 does not have a retaining zone but a fastener 112 located in the groove 102. The fastener 112 has a portion 113 of complementary rounded shape so that the base 105 of the weld support 104 and the portion 113 of the fastener 112 fit into each other so as to retain the base 105 of the weld support 104 in the groove 102. Here we start with weld support 104 in the form of a J.
    The weld support is commonly less than that of the strakes.
    summary
    During the transport of fluid contained in the sealed tank, especially when the tank is not completely filled, the fluid is subjected to a tossing causing it to move from one wall to another, this phenomenon being also known under the name English for "sloshing". The sloshing of the fluid then applies stresses on the walls of the tank and in particular on these protruding parts such as the raised edges. In the tanks of the prior art, these constraints on the raised edges can have the consequence of bending the raised edges. Bent raised edges no longer effectively provide a bellows to absorb the contraction of the membrane and could cause damage to the membrane which would affect the tightness of the tank.
    One idea underlying the invention is to reduce or prevent the risk of bending of the raised edges so as to avoid any degradation of the sealed tank.
    According to one embodiment, the invention provides a sealed vessel wall for the storage of a fluid, comprising:
    - a flat support surface,
    a metallic waterproofing membrane carried by the support surface, the metallic waterproof membrane comprising a plurality of strakes, each strake being a profiled part extending in a longitudinal direction and the cross section of which comprises a flat central portion resting on the support surface and at least one raised lateral edge projecting from the support surface, the metal strakes being arranged parallel to each other on the support surface,
    - A plurality of metal weld supports carried by the support surface, a weld support comprising a base retained on the support surface in a direction perpendicular to the support surface and comprising a branch extending in said longitudinal direction projecting above the support surface between two raised edges of two adjacent strakes, each of the two raised edges being welded by a longitudinal weld sealed to the weld support inserted between said raised edges so that the weld support and the two raised edges form a welded assembly allowing a transverse movement of the strake relative to the weld support, in which the sealing membrane comprises a reinforced zone in which the welded assembly has a resistance to bending in the transverse direction to resist the sloshing of the fluid.
    Thanks to these characteristics, in the reinforced zone, the risk of bending of the raised edges due to the sloshing of the fluid is prevented or reduced.
    According to other advantageous embodiments, such a tank wall may have one or more of the following characteristics.
    According to one embodiment, in the reinforced zone, a top edge of the weld support is substantially aligned with a top edge of the raised edges or slightly above a top edge of the raised edges, the gap being by example between 0 and 5 mm.
    Thanks to these characteristics, the alignment of the edge of the top of the weld support with the edge of the tops of the raised edges makes it possible to prevent the weld support having a protruding part above the raised edges. The protruding part increases the stress on the welded assembly by the lever arm effect which increases the risk that the welded assembly bends. Thus, the welded assembly has at least three thicknesses of metal sheet across its width over its entire height, which reduces this risk.
    According to one embodiment, in the reinforced zone, the thickness of the weld support is greater than or equal to the thickness of the strake.
    Thus, the welded assembly has greater stiffness in bending thanks to the thickness of the weld support which is greater than the thickness of the strakes.
    According to one embodiment, in the reinforced zone, the thickness of the weld support is greater than or equal to 1 mm, the thickness of the strakes being, for example, less than or equal to 0.7 mm. The thickness of the weld support can for example be between 0.7 and 2 mm, preferably between 1 and 2 mm.
    According to one embodiment, in the reinforced zone, the base of the weld support comprises at least two parts of length directed transversely on either side of the branch of the weld support, for example, alternately.
    According to one embodiment, in which in the reinforced zone, the weld support comprises two elongated anchor wings, each anchor wing comprising a branch extending in said longitudinal direction and projecting above the surface of support, and the branches of the two anchor wings are welded against each other by a sealed intermediate weld extending in the longitudinal direction so as to form the branch of the weld support, in which the intermediate weld is located above the support surface.
    Thus, the welded assembly has an additional sheet layer using the two anchor wings which increases the thickness of the welded assembly and therefore the bending stiffness of the welded assembly.
    According to one embodiment, each anchoring wing comprises a base retained on the support surface in a direction perpendicular to the support surface and a branch extending in said longitudinal direction projecting above the support surface so that the branches of the anchor wings form the branch of the weld support and the bases of the anchor wings form the base of the weld support and in which the base of an anchor wing is directed in the transverse direction and the base of the other anchor wing is directed in the transverse direction in the opposite direction, for example over the entire length of the weld support or part of the length of the weld support.
    According to one embodiment, the intermediate weld is located at the same distance from the support surface as the two longitudinal welds.
    Thanks to these characteristics, the welded assembly therefore has all these welds aligned transversely, which facilitates the production of these welds, for example by means of a single pass of a seam welding machine.
    According to one embodiment, in the reinforced area, the transition between a raised edge and a flat central portion has a progressive rounded shape, for example the transition having a radius of curvature greater than 5mm, in particular greater than 10mm.
    According to one embodiment, in which in the reinforced zone, the welded assembly comprises a segmented raised edge comprising:
    - a first section connected to the flat central portion of the strake and forming an angle with the flat central portion, the angle being between 10 and 80 degrees,
    - A second panel connected to the first panel and being substantially orthogonal to the flat central portion of the strake, and in which the second panel of the segmented raised edge is welded in leaktight manner to the weld support by the longitudinal weld.
    Thus, the first section of the raised edge makes it possible to create a strut making it possible to increase the flexural strength of the welded assembly.
    According to one embodiment, in the reinforced zone, the welded assembly comprises two segmented raised edges belonging to the two adjacent strakes.
    Thanks to these characteristics, the welded assembly comprises two struts on either side of the weld support making it possible to increase the flexural strength symmetrically.
    According to one embodiment, in the reinforced zone, the metallic waterproof membrane comprises a wedge located in the space formed between a raised edge or a segmented raised edge and the branch of the weld support.
    According to one embodiment, said wedge can be located in the space formed between the first section of a segmented raised edge and the branch of the weld support to maintain the inclination of the first section.
    Thus, the wedge makes it possible to keep the inclination of the raised edge or of the first section of the raised edge and therefore to keep the strut effect. The shim also contributes to the increase in flexural strength.
    According to one embodiment, in the reinforced zone of the metallic waterproof membrane, the vessel wall comprises two wedges, the first wedge being located in the space formed between the first section of a first raised segmented edge and the branch of the support. of welding and the second wedge being located in the space formed between the first section of a second raised segmented edge and the branch of the welding support, the wedges making it possible to maintain the inclination of the first sections.
    Thus, the shims allow the inclination of the first sections of the weld support to be preserved and therefore the effect of a strut to be preserved. The shims also contribute to increasing the flexural strength symmetrically.
    Such a wedge can be produced can be produced in various materials, for example wood, metal or synthetic materials. In one embodiment, the shim is made of a metal sheet folded substantially parallel to the raised edge.
    According to one embodiment, a lower surface of one or each wedge rests on the support surface.
    According to one embodiment, a lower surface of one or each shim rests on the base of the welding support.
    According to one embodiment, in the reinforced zone, the tank wall comprises a cover bar, the cover bar having a flat bottom surface resting on the flat middle portion of the two strakes of the welded assembly, the cover bar comprising a housing opening onto the lower surface and receiving a welded assembly so that its cover bar covers the welded assembly.
    Thanks to these characteristics, the welded assembly is protected by the cover bar and therefore no longer directly undergoes the sloshing of the fluid. The cover bar thus prevents the sloshing from exerting a force on the welded assembly.
    Such a cover bar can be produced can be produced in various materials, for example wood, metal or synthetic materials.
    According to one embodiment, the cover bar is fixed to the welding support of the welded assembly by a fixing means.
    Thanks to these characteristics, the cover bar and the welded assembly are fixed to each other, thus forming a whole which increases the flexural strength of the welded assembly.
    According to one embodiment, the fixing means is a rod, a staple, a stud, a screw, a clip or any other suitable means.
    According to one embodiment, the housing of the cover bar comprises a flared portion allowing transverse movement of the strake relative to the weld support.
    According to one embodiment, the flared portion is formed by a chamfer made along a wall of the housing.
    According to one embodiment, the sealed tank wall comprises a thermally insulating barrier comprising a top panel having the support surface, the top panel having a groove developing in a thickness direction and in a length direction of the thermally insulating barrier, the base of the weld support of the welded assembly being retained in the groove.
    According to one embodiment, the groove has in the thickness of the thermally insulating barrier an entry zone which extends in the thickness direction, the groove comprising a retaining zone arranged under the entry zone and which develops parallel to the support surface over a width greater than the entry zone, and in which the base of the weld support is housed in the retaining zone.
    According to one embodiment, the retaining area develops parallel to the support surface, on either side of the entry area.
    According to one embodiment, the groove comprises a fastener, the fastener being configured to retain the base of the weld support in the groove.
    According to one embodiment, the base of the weld support has a rounded shape and the fastener has a complementary rounded portion so that the base of the weld support and the rounded portion of Attaches fit together. in the other.
    According to one embodiment, the thermally insulating barrier is a primary thermally insulating barrier and the sealing membrane is a primary sealing membrane, and in which the sealed tank wall comprises a secondary thermally insulating barrier and a sealing membrane secondary placed under the primary thermally insulating barrier.
    According to embodiments, the reinforced zone can extend over the entire length of the tank wall or over a portion of the length, for example over half of the length.
    According to embodiments, one or more welded assemblies can be in the reinforced zone.
    According to embodiments, the reinforced zone can extend over the entire tank wall or over a portion of the tank wall.
    Thus, all the raised edges of the tank wall have a reinforcement preventing sagging because of the sloshing.
    According to one embodiment, the sealed tank wall is composed of a central portion and of a peripheral portion composed of a plurality of wall edges, and in which the reinforced zone extends over a wall edge, or on a plurality of wall edges, for example the reinforced zone extends over the entire peripheral portion of the sealed vessel wall.
    According to one embodiment, the invention provides a sealed polyhedral vessel comprising a plurality of sealed vessel walls fixed to each other in a sealed manner to form a polyhedral interior space for the storage of a fluid, in which one or more of the said aforementioned watertight walls of the vessel has an aforementioned reinforced zone.
    According to other advantageous embodiments, such a tank may have one or more of the following characteristics.
    According to embodiments, the tank can include one or more of the tank walls from the following list:
    - a ceiling wall,
    - a back wall,
    - one or more side walls of cofferdam connecting the bottom wall to the ceiling wall,
    - one or more side walls connecting the side wall (s) of cofferdam,
    - one or more lower walls forming chamfers connecting the side wall (s) to the bottom wall and
    - one or more upper walls forming chamfers connecting the side wall (s) to the ceiling wall;
    One or more of the tank walls in the list may be a tank wall comprising a aforementioned reinforced zone.
    Such a tank can be part of a terrestrial storage installation, for example to store LNG or be installed in a floating structure, coastal or deep water, in particular an LNG tanker, a floating storage and regasification unit (FSRU) , a floating remote production and storage unit (FPSO) and others. Such a tank can also serve as a fuel tank in any type of ship.
    According to one embodiment, the invention also provides a ship for the transport of a liquid product, the ship comprising a hull and a tank according to the invention arranged in the hull.
    According to one embodiment, the reinforced zone is located on the edges of the walls forming an upper transverse edge of the tank placed in front of the ship.
    According to one embodiment, the invention provides a method of loading or unloading such a vessel, in which a liquid product is conveyed through isolated pipes from or to a floating or land storage installation to or from the sealed tank. of the ship.
    According to one embodiment, the invention also provides a transfer system for a liquid product, the system comprising the aforementioned vessel, isolated pipes arranged so as to connect the sealed tank installed in the hull of the vessel to a floating storage installation. or terrestrial and a pump to drive a flow of cold liquid product through the isolated pipes from or to the floating or terrestrial storage facility to or from the watertight tank of the ship.
    Brief description of the figures
    The invention will be better understood, and other objects, details, characteristics and advantages thereof will appear more clearly during the following description of several particular embodiments of the invention, given solely by way of illustration and without limitation. , with reference to the accompanying drawings.
    - Figure 1 is a partial perspective view and cut away of a sealed and insulating tank wall in which welded assemblies can be used.
    - Figure 2 is a sectional view of a welded assembly of waterproof metal membrane of the prior art, said welded assembly being anchored in a support surface.
    - Figure 3 is a sectional view of a welded assembly of waterproof metal membrane of the prior art, said welded assembly being anchored in a support surface according to another method of attachment.
    - Figure 4 is a sectional view of a welded assembly anchored in a support surface according to a first embodiment.
    - Figure 5 is a sectional view of a welded assembly anchored in a support surface according to a second embodiment.
    - Figure 6 is a sectional view of a welded assembly anchored in a support surface according to a third embodiment.
    - Figure 7 is a sectional view of a welded assembly anchored in a support surface according to a fourth embodiment.
    - Figure 8 is a sectional view of a welded assembly anchored in a support surface according to a fifth embodiment.
    - Figure 9 is a sectional view of a welded assembly anchored in a support surface according to a sixth embodiment.
    - Figure 10 is a sectional view of a welded assembly anchored in a support surface according to a seventh embodiment.
    - Figure 11 is a sectional view of a welded assembly anchored in a support surface according to an eighth embodiment.
    - Figure 12 is a sectional view of a welded assembly anchored in a support surface according to a ninth embodiment.
    - Figure 13 is a sectional view of a welded assembly anchored in a support surface according to a tenth embodiment.
    - Figure 14 is a sectional view of a welded assembly anchored in a support surface according to eleventh and twelfth embodiments.
    - Figure 15 is a sectional view of a welded assembly anchored in a support surface according to the eleventh embodiment, in a cutting plane comprising the fixing means.
    - Figure 16 is a partial sectional view of a welded assembly anchored in a support surface according to the twelfth embodiment, in a cutting plane comprising the fixing means.
    - Figure 17 is an unfolded view of a sealed polyhedral tank having a first arrangement of the reinforced areas.
    - Figure 18 is an unfolded view of a tank having a second arrangement of the reinforced areas.
    - Figure 19 is an unfolded view of a tank having a third arrangement of the reinforced areas.
    - Figure 20 is an unfolded view of a tank having a fourth arrangement of the reinforced areas.
    polyhedral waterproof polyhedral waterproof polyhedral waterproof
    - Figure 21 is a cutaway schematic representation of a ship comprising a sealed fluid storage tank and a loading / unloading terminal of this tank.
    Detailed description of embodiments
    In the description below, reference is made to a waterproofing membrane in the context of a sealed tank. Such a tank has an internal space, formed by a plurality of tank walls, intended to be filled for example with combustible or non-combustible gas. The gas may in particular be a liquefied natural gas (LNG), that is to say a gaseous mixture mainly comprising methane as well as one or more other hydrocarbons, such as ethane, propane, n-butane, i-butane, n-pentane i-pentane, neopentane, and nitrogen in small proportion. The gas can also be ethane or a liquefied petroleum gas (LPG), that is to say a mixture of hydrocarbons resulting from the refining of petroleum comprising essentially propane and butane.
    The sealing membrane rests on a support surface 11 formed by a thermally insulating barrier of the tank. This sealing membrane has a repeated structure alternately comprising on the one hand sheet metal strips, called strakes 21, arranged on the support surface 11 and, on the other hand, elongated weld supports 15 linked to the support surface. 11 and extending parallel to the strakes 21 over at least part of the length of the strakes 21. The strakes 21 have raised lateral edges 23 arranged and welded against the adjacent welding supports 15. Such a structure is for example used in LNG tankers of the NO96 type sold by the applicant.
    Referring to Figure 1, the carrying structure of a ship is here constituted by the inner wall 1 of a double hull of the ship. In a manner known per se, the tank comprises a secondary thermally insulating barrier fixed to the support structure of the ship. This secondary thermally insulating barrier consists of a plurality of parallelepipedal secondary insulating boxes 2 which are arranged side by side, so as to substantially cover the internal surface of the support structure.
    Each secondary insulating box 2 consists of a parallelepipedal plywood box which internally comprises load-bearing partitions 3 and non-load-bearing partitions 4 which are only intended to ensure the relative positioning of the load-bearing partitions 3, said partitions being interposed between a bottom panel 5 in plywood and a top panel 6 in plywood. The bottom wall 5 of the boxes 2 projects laterally on the two short sides of the box, so that in each corner of the box, on this projecting part, are fixed cleats 7 which have the thickness of said projecting part. As explained below, the cleats 7 cooperate with members for fixing the boxes 2 to the support structure.
    Each box 2 is filled with a thermally insulating particulate material, for example perlite or glass wool. The bottom plate 5 of each box 2 rests on strands of polymerizable resin 8 which are themselves supported on the supporting structure 1, by means of a kraft paper 9 to prevent the resin of the glue strand from sticking to the support structure and thus allow dynamic deformation of the support structure without the boxes 2 not being subjected to the forces due to said deformation. The purpose of the polymerizable resin strands 8 is to make up for the differences between the theoretical surface provided for the support structure and the imperfect surface resulting from the manufacturing tolerances. The top panels 6 of the secondary insulating boxes 2 further comprise a pair of parallel grooves 12 in the form of substantially L or T inverted to receive weld supports in the form of L, T or J.
    The weld supports 15 comprise a branch 18 which projects towards the top of the panels 6 and allows the anchoring of the secondary sealing membrane. The secondary sealing membrane consists of a plurality of metal strakes 21 with raised edges 23, having a thickness of the order of 0.7 mm. The raised edges 23 of each strake 21 are welded to the aforementioned welding supports 15. The metal strakes 21 are made of a metal having a low coefficient of thermal expansion, for example this metal can be an iron-nickel alloy whose coefficient of thermal expansion is between
    1.2 and 2.0 x 10 6 K 1 , or of an iron alloy with a high manganese content, the coefficient of expansion of which is typically of the order of 7.10 6 K ' 1 .
    On the secondary waterproofing membrane is mounted the primary thermally insulating barrier which also consists of a plurality of primary insulating boxes 10 having a structure similar to secondary insulating boxes 2. Each primary insulating box consists of a rectangular rectangular box made made of plywood of a height less than the box 2, which is filled with particulate matter, such as perlite or glass wool. The primary insulating boxes 10 also include internal partitions carrying a bottom panel and a top panel 11.
    The bottom panel has two longitudinal grooves 12 intended to receive the welding supports 15 and the raised edges 23 of the secondary sealing membrane. The top panels 11 have, in turn, two grooves 12 in the shape of substantially L or T inverted, to also receive a weld support 15 on which are welded the raised edges 23 of the strakes 21 of the primary sealing membrane.
    In the case of a L-shaped or T-shaped weld support 15, the groove 12 has a T-shaped cross section, the base of which is formed by the retaining zone 14 located on either side of the entry zone 13 of the groove 12. The weld support 15 has a base 17 housed in the retaining zone 14 so as to retain the weld support 15 on the thermally insulating barrier in a direction perpendicular to the support surface 11 The weld support 15 further comprises a branch 18, a lower part 19 of which is contiguous with the base 17 and an upper part 20 protrudes above the support surface 11.
    In the case of a J-shaped weld support 15, the groove 12 has a cross-section in the form of an I or an L. The groove 12 can include a retaining zone 14 but this is optional. The groove can therefore comprise only an entry zone 13. The groove 12 comprises a fastener J in the shape of an inverted J having a rounded portion 27 complementary to the base 17 of the weld support 15 which is also rounded, so as to be fixed in the rounded portion 27 of the fastener 26 thus making it possible to retain the weld support 15 on the thermally insulating barrier in a direction perpendicular to the support surface 11. The weld support 15 further comprises a branch 18 of which a lower part 19 is joined to the rounded base 17 and an upper part 20 protrudes above the support surface
    11.
    FIGS. 4 to 15 represent a plurality of embodiments of a reinforced welded assembly, formed by a welding support 15 and two adjacent raised edges 23, where the reinforced welded assembly has a resistance to bending in the transverse direction to resist the sloshing of the fluid contained in the tank.
    Each of the different embodiments can use a welding support 15 with a base 17 housed in a retaining zone 14 of the groove 12 visible for example in FIG. 4, or a welding support 15 with a rounded base 17 cooperating with a rounded portion 27 complementary to a fastener 26 fixed in the groove 12 visible for example in FIG. 3, or else a welding support 15 with a rounded base 17 cooperating with a rounded portion 27 complementary to a fastener 26 fixed in the retaining zone 14 of the groove 12 visible for example in FIG. 11.
    FIG. 4 represents a first embodiment of a welded assembly anchored in a support surface 11 of a sealed tank wall. In this embodiment, a top edge 35 of the weld support 15 is aligned with the top edges 36 of the raised edges 23 adjacent to the weld support 15. In this way, the upper part 20 of the weld support 15 does not plus projection above the raised edges 23. To facilitate the mounting and fixing of strakes 21 to the weld support 15, the upper portion 20 of the weld support 15 is cut after longitudinal welding.
    FIG. 5 represents a second embodiment of a welded assembly anchored in a support surface 11 of a sealed tank wall. In this embodiment, the top edge 35 of the weld support 15 is also aligned with the top edges 36 of the raised edges 23 adjacent to the weld support 15. In addition, in the prior art, it has been commonly used welding supports 15 of thickness equal to or less than the thickness of strakes 21 which is 0.7 mm, in particular to limit costs. Here, the thickness of the weld support 15 is greater than the thickness of a strake 21, for example a thickness of 1 mm or 2 mm. This greater thickness of the weld support 15 makes it possible to increase the flexural strength of the welded assembly.
    FIG. 6 represents a third embodiment of a welded assembly anchored in a support surface 11 of a sealed tank wall. In this embodiment, the weld support 15 comprises two elongated anchor wings 16 welded against each other by a sealed intermediate weld 29 extending in the longitudinal direction. The intermediate weld 29 is located the same distance from the support surface 11 as the two longitudinal welds 28.
    FIG. 7 represents a fourth embodiment of a welded assembly anchored in a support surface 11 of a sealed tank wall. The fourth embodiment of a welded assembly is similar to the third embodiment, however it differs in that the thickness of each anchoring wing 16 of the welding support 15 is greater than the thickness of a hole 21 while in Se third embodiment of Figure 6 the thicknesses are substantially equal.
    FIG. 8 represents a fifth embodiment of a welded assembly anchored in a support surface 11 of a sealed tank wall. The fifth embodiment of a welded assembly is similar to the third embodiment, however it differs in that the apex edge 35 of each anchoring wing 16 of the weld support 15 is aligned with the apex edges 36 raised edges 23 adjacent to the weld support 15. In fact, in the third embodiment of FIG. 6, the upper part 20 of each anchoring wing 16 projects from the raised edges 23 adjacent to the weld support 15.
    FIG. 9 represents a sixth embodiment of a welded assembly anchored in a support surface 11 of a sealed tank wall. The sixth embodiment of a welded assembly is similar to the fourth embodiment, however it differs in that the apex edge 35 of each anchoring wing 16 of the weld support 15 is aligned with the apex edges 36 raised edges 23 adjacent to the weld support 15. In fact, in the fourth embodiment of FIG. 7, the upper part 20 of each anchoring wing 16 projects from the raised edges 23 adjacent to the weld support 15.
    FIG. 10 represents a seventh embodiment of a welded assembly anchored in a support surface 11 of a sealed vessel wall. The seventh embodiment of a welded assembly is similar to the fifth embodiment, however it differs in that a secondary weld 30 fixes the lower parts 19 of each of the anchoring wings 16 of the weld support 15 so as to increase the rigidity of the weld support 15.
    Figure 11 shows an eighth embodiment of a welded assembly anchored in a support surface 11 of a sealed vessel wall. In this embodiment, the welded assembly comprises two raised edges 23 segmented, each raised edge 23 segmented comprising a first panel 24 connected to the flat central portion 22 and forming an angle with the flat central portion 22, the angle being included between 10 and 80 degrees, and a second panel 25 connected to the first panel 24 and being substantially orthogonal to the flat central portion 22. The second panel 25 of the raised edge 23 segmented is welded by the longitudinal weld 28 in a sealed manner to the weld support 15.
    Figure 12 shows a ninth embodiment of a welded assembly anchored in a support surface 11 of a sealed vessel wall. The ninth embodiment of a welded assembly is similar to the eighth embodiment, it differs however in that shims 37 are inserted in the spaces formed between the first panel 24 of each raised edge 23 segmented, the branch 18 of the support weld 15 and the support surface 11. A shim 37 may have a surface which bears on the base 17 of the weld support 15. A shim 37 has substantially the shape of a beam of polygonal section, for example triangular. The angle formed by the first panel 24 with the flat central portion 22 is here between 60 and 70 degrees.
    Figure 13 shows a tenth embodiment of a welded assembly anchored in a support surface 11 of a sealed vessel wall. The tenth embodiment of a welded assembly is similar to the ninth embodiment, it differs however in that the shape of the shims 37 is different as well as the angle formed by the first panel 24 with the flat central portion 22. In Indeed, in this tenth embodiment, the angle formed by the first panel 24 with the flat central portion 22 is smaller, namely between 10 and 20 degrees. The shape of the shims 37 is therefore adapted to this angle, namely they have the shape of beams with an L-shaped section, therefore consisting of two orthogonal branches, the thickness of which is similar to the thickness of the weld support 15. One of the branches is interposed between the first panel 24 and the support surface 11 while the second branch is interposed between the second panel 25 and the welding support 15. The wedge 37 is for example formed of a folded metal sheet.
    Figure 14 shows an eleventh and a twelfth embodiment of a welded assembly anchored in a support surface 11 of a sealed vessel wall. In these embodiments, the sealed vessel wall includes a cover bar 31 located at the raised edges 23 adjacent to a welded assembly. The cover bar 31 comprises a housing 32 receiving a welded assembly so that the cover bar 31 covers the welded assembly. The housing 32 of the cover bar 31 comprises a flared portion 33 which is in the form of a chamfer formed all around the wall of the housing 32 allowing the transverse movement of the strake 21 relative to the weld support 15.
    The cover bar 31 can be fixed to the weld support 15 by a fixing means 34. In the embodiment of FIG. 15 corresponding to the eleventh embodiment, the fixing means 34 is a rod, for example a screw assembly. nut which is inserted in an orifice 97 laterally passing through the cover bar 31 and an orifice 98 in the upper part 20 of the weld support 15. The cover bar 31 may comprise, along its length, a plurality of fixing means 34. A surface of the cover bar 31 is located in contact with the flat central portion 22 of a strake 21.
    FIG. 16 represents a twelfth embodiment of a welded assembly anchored in a support surface 11 of a sealed vessel wall. The twelfth embodiment of a welded assembly is similar to the eleventh embodiment, however it differs in that the fastening means 34 is an elastic clip placed in a vertical groove extending over half the thickness of the cover bar 31 and passing inside an orifice of the anchoring support 15. An upper branch of the staple has a notch 99 for receiving the upper edge of the orifice 98 which fixes the staple so stable in port 98.
    The reinforced welded assemblies described above can be used to form reinforced zones 50 in a metallic waterproofing membrane, on one or more walls of a sealed tank.
    Figures 17 to 20 show a plurality of embodiments of a sealed tank whose walls have larger or smaller reinforced areas.
    The polyhedral watertight tank shown comprises a bottom wall 43, a ceiling wall 44, two side walls of cofferdam 48 connecting the bottom wall 43 to the ceiling wall 44, two side walls 45 connecting the side walls of cofferdam 48, two lower walls forming chamfers 47 connecting the side walls 45 to the bottom wall 43 and two upper walls forming chamfers 46 connecting the side walls 45 to the ceiling wall 44. A sealed vessel wall is composed of a central portion 40 and d a peripheral portion 41 composed of a plurality of edges of walls 42.
    FIG. 17 shows a first embodiment of a sealed tank 71. In this embodiment, only the bottom wall 43 does not have a reinforced zone. All the other walls 44, 45, 46, 47, 18 have a reinforced zone 50 extending over all of the tank walls. Indeed, the bottom wall 43 does not undergo or very little sloshing of fluid because it is permanently submerged, there is therefore no need to reinforce the raised edges 23.
    FIGS. 18 and 19 respectively show a second and third embodiment of a sealed tank 71. In these embodiments, the bottom wall 43 and the bottom walls forming chamfers 47 do not have a reinforced zone 50. The side walls 45 have a reinforced zone 50 extending over all of these walls. The side walls of cofferdam 48 have a reinforced zone 50 on the edges of side walls 42 and above. The ceiling wall 44 and the upper walls forming chamfers have a reinforced zone 50 on their peripheral portion 41. Thus, only the walls undergoing the most forces linked to the sloshing of the fluid have a reinforced zone 50 and this is more or less less extensive depending on the efforts undergone.
    FIG. 20 shows a fourth embodiment of a sealed tank 71. In this embodiment, the bottom wall 43, the bottom walls forming chamfers 47, the side walls 45 and the side wall of cofferdam located at the rear of the ship 70 do not have a reinforced area 50. The ceiling wall 44, the side wall of cofferdam located at the front of the ship 70 and the upper walls forming chamfers 46 have a reinforced area 50. The reinforced area 50 of the tank watertight 71 is located on the edges of walls 42 forming the upper edge of the watertight tank 71 placed at the front of the ship 70. Thus, only the place where the forces undergone by the raised edges 23 linked to the sloshing of the fluid are the most important, is provided with a reinforced zone 50.
    The technique described above for producing a sealed vessel wall can be used in different types of vessels, for example to constitute the sealed vessel wall of an LNG tank in a land installation or in a floating structure such as an LNG tanker Or other.
    With reference to FIG. 21, a cutaway view of an LNG tanker 70 shows a sealed and insulated tank 71 of generally prismatic shape mounted in the double hull 72 of the ship. The wall of the tank 71 comprises a primary waterproof barrier intended to be in contact with the LNG contained in the tank, a secondary waterproof barrier arranged between the primary waterproof barrier and the double hull 72 of the ship, and two insulating barriers arranged respectively between the primary waterproof barrier and the secondary waterproof barrier and between the secondary waterproof barrier and the double shell 72.
    In a manner known per se, loading / unloading lines 73 arranged on the upper deck of the ship can be connected, by means of appropriate connectors, to a maritime or port terminal for transferring a cargo of LNG from or to the tank 71.
    FIG. 21 represents an example of a maritime terminal comprising a loading and unloading station 75, an underwater pipe 76 and a shore installation 77. The loading and unloading station 75 is a fixed offshore installation comprising an arm mobile 74 and a tower 78 which supports the mobile arm 74. The mobile arm 74 carries a bundle of insulated flexible pipes 79 which can be connected to the loading / unloading pipes 73. The mobile arm 74 can be adjusted to suit all LNG tankers' sizes . A connection pipe, not shown, extends inside the tower 78. The loading and unloading station 75 allows the loading and unloading of the LNG carrier 70 from or to the onshore installation 77. This comprises liquefied gas storage tanks 80 and connecting pipes 81 connected by the subsea pipe 76 to the loading or unloading station 75. The subsea pipe 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the shore installation 77 over a long distance, for example 5 km, which makes it possible to keep the LNG carrier 70 at a great distance from the coast during the loading and unloading operations.
    To generate the pressure necessary for the transfer of the liquefied gas, pumps on board the ship 70 and / or pumps fitted to the shore installation 77 and / or pumps fitted to the loading and unloading station 75 are used.
    Although the invention has been described in connection with several particular embodiments, it is obvious that it is in no way limited thereto and that it includes all the technical equivalents of the means described as well as their combinations if these are within the scope of the invention.
    The use of the verb "behave", "understand" or "include" and its conjugate forms do not exclude the presence of other elements or steps than those set out in a claim.
    In the claims, any reference sign in parentheses cannot be interpreted as a limitation of His claim.
    权利要求:
    Claims (43)
    [1" id="c-fr-0001]
    1. Sealed vessel wall, for the storage of a fluid, comprising:
    - a flat support surface (11),
    - a metallic waterproofing membrane carried by the support surface (11), the metallic waterproof membrane comprising a plurality of strakes, each strake (21) being a profiled part extending in a longitudinal direction and the cross section of which comprises a flat middle portion (22) resting on the support surface (11) and at least one raised lateral edge projecting from the support surface (11), the strakes (21) being arranged parallel to each other on the support surface (11)
    - a plurality of metal weld supports carried by the support surface (11), a weld support (15) comprising a base (17) retained on the support surface (11) in a direction perpendicular to the support surface ( 11) and comprising a branch (18) extending in said longitudinal direction projecting above the support surface (11) between two raised edges (23) of two adjacent strakes (21), each of the two raised edges ( 23) being welded by a longitudinal weld (28) sealed to the weld support (15) interposed between said raised edges (23) so that the weld support (15) and the two raised edges (23) form a welded assembly allowing transverse movement of the strake (21) relative to the weld support (15), in which the sealing membrane comprises a reinforced zone (50) in which the welded assembly has resistance to bending in the transverse direction to resist sloshing of the fluid.
    [2" id="c-fr-0002]
    2. Sealed tank wall according to claim 1, in which in the reinforced zone (50), the thickness of the weld support (15) is greater than or equal to the thickness of the strake (21).
    [3" id="c-fr-0003]
    3. Sealed tank wall according to claim 2, in which in the reinforced zone (50), the thickness of the weld support (15) is greater than or equal to 1 mm.
    [4" id="c-fr-0004]
    4. Sealed tank wall according to any one of the preceding claims, in which in the reinforced zone (50), a top edge (35) of the weld support (15) is substantially aligned with a top edge (36) raised edges (23).
    [5" id="c-fr-0005]
    5. Sealed tank wall according to any one of the preceding claims, in which in the reinforced zone (50), the base (17) of the weld support (15) comprises at least two parts of length directed transversely from side to side. 'other of the branch (18) of the weld support (15).
    [6" id="c-fr-0006]
    6. Sealed tank wall according to any one of the preceding claims, in which in the reinforced zone (50), the weld support (15) comprises two elongated anchor wings (16), each anchor wing (16) ) comprising a branch extending in said longitudinal direction and projecting above the support surface, and the branches of the two anchor wings (16) are welded against each other by an intermediate weld (29 ) sealed extending in the longitudinal direction so as to form the branch (18) of the weld support (15), in which the intermediate weld (29) is located above the support surface (11).
    [7" id="c-fr-0007]
    7. watertight tank wall according to claim 6, in the island each anchoring wing (16) further comprises a base retained on the support surface (11) in a direction perpendicular to the support surface (11), the bases anchor wings (16) forming the base (17) of the weld support (15) and in which the base of an anchor wing (16) is directed in the transverse direction and the base of the other wing anchor (16) is directed in the transverse direction in the opposite direction.
    [8" id="c-fr-0008]
    8. Sealed tank wall according to claim 6 or claim 7, wherein the intermediate weld (29) is located at the same distance from the support surface (11) as the two longitudinal welds (28).
    [9" id="c-fr-0009]
    9. watertight tank wall according to claim 1, in which in the reinforced zone (50), the transition between a raised edge (23) and the flat central portion (22) of the strake has a progressive rounded shape. .
    [10" id="c-fr-0010]
    10. Sealed tank wall according to any one of claims 1 to 9, in which in the reinforced zone (50), the metallic waterproof membrane comprises a wedge (37) situated in a space formed between a raised edge (23) and the branch (18) of the weld support (15).
    [11" id="c-fr-0011]
    11. Sealed tank wall according to any one of the preceding claims, in which in the reinforced zone (50), the welded assembly comprises a raised edge (23) segmented comprising:
    - a first panel (24) connected to the flat central portion (22) of the strake (21) and forming an angle with the flat central portion (22), the angle being between 10 and 80 degrees,
    - A second panel (25) connected to the first panel (24) and being substantially orthogonal to the flat central portion (22) of the strake (21), and in which the second panel (25) of the raised edge (23) segmented is welded tightly to the weld support (15) by the longitudinal weld (28).
    [12" id="c-fr-0012]
    12. Sealed tank wall according to claim 10, in which in the reinforced zone (50), the welded assembly comprises two raised raised edges (23) belonging to the two adjacent strakes (21).
    [13" id="c-fr-0013]
    13. watertight cell wall according to claim 10 taken in combination with claim 11 or 12, wherein said shim (37) is located in the space formed between the first panel (24) of a raised edge (23) segmented and the branch (18) of the weld support (15) to maintain the inclination of the first panel (24).
    [14" id="c-fr-0014]
    14. sealed vessel wall according to claim ^, wherein in the reinforced zone (50) of the metallic waterproof membrane, the vessel wall comprises two wedges (37), the first wedge (37) being located in the space formed between the first section (24) of a first raised edge (23) segmented and the branch (18) of the weld support (15) and the second wedge (37) being located in the space formed between the first section (24 ) a second raised edge (23) segmented and the branch (18) of the welding support (15), the shims (37) allowing the inclination of the first sections to be preserved.
    [15" id="c-fr-0015]
    15. Sealed tank wall according to any one of claims 10, 13 and 14, wherein a lower surface of one or each wedge (37) rests on the support surface (11).
    [16" id="c-fr-0016]
    16. Sealed vessel wall according to any one of claims 10 and 13 to 15, in which a lower surface of one or each shim (37) rests on the base (17) of the welding support (15).
    [17" id="c-fr-0017]
    17. watertight tank wall according to any one of the preceding claims, in which in the reinforced zone (50), the tank wall comprises a cover bar (31), the cover bar (31) having a lower pian surface resting on the flat central portion of the two strakes of the welded assembly, the cover bar (31) comprising a housing (32) opening onto the lower surface and receiving a welded assembly so that the cover bar (31) covers the welded assembly.
    [18" id="c-fr-0018]
    18. Sealed tank wall according to claim 17, in which the cover bar (31) is fixed to the weld support (15) of the welded assembly by a fixing means (34)
    [19" id="c-fr-0019]
    19. Sealed tank wall according to any one of claims 17 to 18, in which the housing (32) of the cover bar (31) comprises a flared portion (33) allowing transverse movement of the strake (21) by relative to the weld support (15).
    [20" id="c-fr-0020]
    20. Sealed tank wall according to claim 19, in which the flared portion (33) is formed by a chamfer produced along a wall of the housing (32).
    [21" id="c-fr-0021]
    21. watertight cell wall according to any one of the preceding claims, wherein the watertight cell wall comprises a thermally insulating barrier comprising a top panel having the support surface (11), the top panel having a groove (12 ) developing in a thickness direction and in a length direction of the thermally insulating barrier, the base (17) of the weld support (15) of the welded assembly being retained in the groove (12).
    [22" id="c-fr-0022]
    22. Sealed tank wall according to claim 21, in which the groove (12) has, in the thickness of the thermally insulating barrier, an entry zone (13) which extends in the thickness direction, the groove ( 12) comprising a retaining area (14) arranged under the entry area and which develops parallel to the support surface (11) over a width greater than the entry area (13), and in which the base (17) of the weld support (15) is housed in the retaining zone (14).
    [23" id="c-fr-0023]
    23. Sealed tank wall according to claim 22, in which the retaining zone (14) develops parallel to the support surface (11), on either side of the entry zone (13).
    [24" id="c-fr-0024]
    24. Sealed vessel wall according to any one of claims 21 to 23, in which the groove (12) comprises a fastener (26), the fastener (26) being configured to retain the base (17) of the weld support. (15) in the groove (12).
    [25" id="c-fr-0025]
    25. Sealed tank wall according to claim 24, in which the base (17) of the weld support (15) has a rounded shape and the fastener (26) has a rounded portion (27) complementary so that the base (17) of the weld support (15) and the rounded portion (27) of the fastener (26) fit into each other.
    [26" id="c-fr-0026]
    26. Watertight tank wall according to claim 21, in which the thermally insulating barrier is a primary thermally insulating barrier and the sealing membrane is a primary sealing membrane, and in which the tank wall watertight comprises a secondary thermally insulating barrier and a secondary sealing membrane disposed under the primary thermally insulating barrier.
    [27" id="c-fr-0027]
    27. Sealed tank wall according to any one of the preceding claims, in which the reinforced zone (50) extends over the entire length of the tank wall.
    [28" id="c-fr-0028]
    28. Sealed tank wall according to any one of the preceding claims, in which several welded assemblies are located in the reinforced zone (50).
    [29" id="c-fr-0029]
    29. Watertight tank wall according to any one of the preceding claims, in which the reinforced zone (50) extends over the entire wall of the tank.
    [30" id="c-fr-0030]
    30. Sealed tank wall according to claim 1, in which the sealed tank wall is composed of a central portion (40) and of a peripheral portion (41) composed of a plurality of edges. walls (42), and wherein the reinforced area (50) extends over an edge of walls (42).
    [31" id="c-fr-0031]
    31. Watertight tank wall according to claim 30, in which the reinforced zone (50) extends over a plurality of wall edges (42).
    [32" id="c-fr-0032]
    32. Sealed tank wall according to claim 30 or claim 31, in which the reinforced zone (50) extends over the entire peripheral portion (41) of the sealed tank wall.
    [33" id="c-fr-0033]
    33. Polyhedral watertight tank (71) comprising a plurality of watertight tank walls fixed to one another in leaktight fashion to form a polyhedral interior space for the storage of a fluid, in which one of said watertight tank walls is 'Any one of claims 1 to 32.
    [34" id="c-fr-0034]
    34. A sealed polyhedral tank (71) according to claim 33, in which the tank comprises a bottom wall (43), a ceiling wall (44), two side walls of cofferdam (48) connecting the bottom wall (43) to the ceiling wall (44) and two side walls (45) connecting the side walls of cofferdam (48).
    [35" id="c-fr-0035]
    35. A polyhedral sealed tank (71) according to claim 34, in which the ceiling wall (44) is according to any one of claims 1 to 32.
    [36" id="c-fr-0036]
    36. A polyhedral sealed tank (71) according to claim 34 or claim 35, wherein one or each of the side walls (45) is according to any one of claims 1 to 32.
    [37" id="c-fr-0037]
    37. A polyhedral sealed tank (71) according to any one of claims 34 to 36, in which one or each of the side walls of the cofferdam (48) is according to any one of claims 1 to 32.
    [38" id="c-fr-0038]
    38. Polyhedral watertight tank (71) according to any one of claims 34 to 37, further comprising two upper walls forming chamfers (47) connecting the side walls (45) to the ceiling wall (44), in which one or each of the upper walls forming chamfers (46) is according to any one of claims 1 to 32.
    [39" id="c-fr-0039]
    39. Sealed polyhedral tank (71) according to any one of claims 34 to 38, comprising two lower walls forming chamfers (46) connecting the side walls (45) to the bottom wall (43), in which one or each of the lower walls forming chamfers (47) is according to any one of claims 1 to 32.
    [40" id="c-fr-0040]
    40. Ship (70) for transporting a liquid product, the ship comprising a hull (72) and a sealed tank (71) according to any one of claims 33 to 39 disposed in the hull.
    [41" id="c-fr-0041]
    41. Vessel (70) according to claim 40, in which the reinforced zone (50) is situated on the edges of walls (42) forming a transverse upper edge of the tank (71) placed at the front of the vessel (70 ).
    [42" id="c-fr-0042]
    42. Method of loading or unloading a ship (70) according to claim 40 or 41, in which a liquid product is conveyed through insulated pipes (73, 79, 76, 81) from or to a storage installation
    10 floating or terrestrial (77) to or from the watertight vessel of the ship (71).
    [43" id="c-fr-0043]
    43. Transfer system for a liquid product, the system comprising a vessel (70) according to claim 40 or 41 isolated pipes (73, 79, 76, 81) arranged so as to connect the sealed tank (71) installed in the hull of the ship at a floating or terrestrial storage facility (77) and a
    15 pump to drive a flow of liquid product through the isolated pipes from or to the floating or ground storage facility to or from the watertight tank of the ship.
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    同族专利:
    公开号 | 公开日
    CN111742173A|2020-10-02|
    KR20200123157A|2020-10-28|
    FR3078136B1|2021-02-12|
    WO2019162596A1|2019-08-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3782581A|1971-12-27|1974-01-01|Phillips Petroleum Co|Fluid containment system|
    US3793976A|1973-01-29|1974-02-26|Phillips Petroleum Co|Multilayered, insulated fluid tank and structure|
    US4116150A|1976-03-09|1978-09-26|Mcdonnell Douglas Corporation|Cryogenic insulation system|
    FR2462336A1|1979-07-27|1981-02-13|Gaz Transport|Tank for transporting liquefied gases by sea - incorporates fluid tightness and insulating barriers simply realised, necessitating only small sweeping nitrogen flow|
    KR20140087709A|2012-12-31|2014-07-09|대우조선해양 주식회사|Container for storing liquefied natural gas|
    FR3054871A1|2016-08-02|2018-02-09|Gaztransport Et Technigaz|SEALED WALL STRUCTURE|
    FR3054872A1|2016-08-02|2018-02-09|Gaztransport Et Technigaz|SEALED WALL STRUCTURE|FR3101408A1|2019-09-30|2021-04-02|Gaztransport Et Technigaz|System for treating a gas contained in a gas storage and / or transport tank in the liquid and gaseous state|
    FR3101407A1|2019-09-30|2021-04-02|Gaztransport Et Technigaz|Refrigerant fluid intended for a refrigerant circuit of a natural gas treatment system|
    FR3111176A1|2020-06-09|2021-12-10|Gaztransport Et Technigaz|Tank wall for sealed and thermally insulating tank|FR2968284B1|2010-12-01|2013-12-20|Gaztransp Et Technigaz|SEAL BARRIER FOR A TANK WALL|FR3111177A1|2020-06-09|2021-12-10|Gaztransport Et Technigaz|Insulating block suitable for the support and thermal insulation of a waterproof membrane intended to contain a fluid|
    法律状态:
    2019-02-28| PLFP| Fee payment|Year of fee payment: 2 |
    2019-08-23| PLSC| Search report ready|Effective date: 20190823 |
    2020-02-28| PLFP| Fee payment|Year of fee payment: 3 |
    2021-02-26| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1851493|2018-02-21|
    FR1851493A|FR3078136B1|2018-02-21|2018-02-21|WATERPROOF TANK WALL INCLUDING A WATERPROOFING MEMBRANE INCLUDING A REINFORCED ZONE|FR1851493A| FR3078136B1|2018-02-21|2018-02-21|WATERPROOF TANK WALL INCLUDING A WATERPROOFING MEMBRANE INCLUDING A REINFORCED ZONE|
    PCT/FR2019/050333| WO2019162596A1|2018-02-21|2019-02-14|Fluid-tight vessel wall comprising a sealing membrane comprising a reinforced zone|
    CN201980014523.2A| CN111742173A|2018-02-21|2019-02-14|Fluid-tight container wall comprising a sealing membrane with reinforced areas|
    KR1020207026224A| KR20200123157A|2018-02-21|2019-02-14|Fluid-tight vessel wall with sealing membrane including reinforcement zones|
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