EP2729729B1 - Cuve etanche et thermiquement isolante - Google Patents

Cuve etanche et thermiquement isolante Download PDF

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Publication number
EP2729729B1
EP2729729B1 EP12734992.6A EP12734992A EP2729729B1 EP 2729729 B1 EP2729729 B1 EP 2729729B1 EP 12734992 A EP12734992 A EP 12734992A EP 2729729 B1 EP2729729 B1 EP 2729729B1
Authority
EP
European Patent Office
Prior art keywords
primary
coupler
barrier
tank according
rod
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.)
Active
Application number
EP12734992.6A
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German (de)
English (en)
French (fr)
Other versions
EP2729729A1 (fr
Inventor
Pierre Jean
Bruno Guelton
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
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Gaztransport et Technigaz SA
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Publication date
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Publication of EP2729729A1 publication Critical patent/EP2729729A1/fr
Application granted granted Critical
Publication of EP2729729B1 publication Critical patent/EP2729729B1/fr
Priority to HRP20160693TT priority Critical patent/HRP20160693T1/hr
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Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • 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
    • 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
    • F17C2203/0631—Three or more 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
    • 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
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/069—Break point in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0364—Pipes flexible or articulated, e.g. a hose
    • 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
    • F17C2209/221—Welding
    • 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
    • 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 a sealed and thermally insulating tank integrated into a load-bearing structure, in particular in the double hull of a vessel intended for the transport of liquefied natural gas.
  • the tank comprises a primary barrier in contact with the liquid contained in the tank and a secondary barrier disposed between the primary barrier and the carrier structure formed by the double hull of the ship; each of these barriers comprises a thermally insulating layer covered with metal sheets which seal, the sealing sheets covering the insulating layer on the side of the inside of the tank.
  • the sealing barriers constituted by the aforementioned metal sheets have corrugations in two orthogonal directions.
  • the corrugations of the primary sealing barrier are preferably all protruding towards the inside of the tank.
  • the corrugations of the secondary sealing barrier are raised towards the outside of the tank and the secondary insulation barrier comprises grooves for accommodating said undulations.
  • such a vessel may have one or more of the following characteristics.
  • the primary and secondary metal plates have a contour shape identical to the contour shape of the primary and secondary secondary insulation blocks.
  • this contour shape can be every time rectangular, square, hexagonal or other shape for paving the plane.
  • the primary and respectively secondary metal plates consist of thin metal sheets shaped so as to have, in two orthogonal directions, corrugations projecting in relief towards the carrier structure, the primary insulating blocks, respectively secondary, having grooves for accommodating said undulations.
  • the corrugations of a primary metal plate, and respectively secondary are equidistant in each of their two directions.
  • the distances between two successive corrugations of the two corrugation directions of a primary metal plate, and respectively secondary are equal, so as to delimit on the two seals inter-corrugation areas of square shape viewed perpendicularly. to the supporting structure.
  • a primary, and respectively secondary, mechanical coupling member is supported on the primary, and respectively secondary, sealing in a plane area between the orthogonal corrugations of said seal.
  • the grooves which receive the corrugations of the primary and secondary sealed plates have a U- or V-shaped cross-section, the opening of the groove being adapted to the shape of the cross-section of the corrugations.
  • the cross section of the grooves is a V, whose branches form between them an angle greater than or equal to 90 °.
  • a groove of a primary insulator block, and respectively secondary is each time delimited by shims introduced into a groove wider than the groove, the wedges leaving the channels in said groove between the primary and secondary insulation block, and the corrugation of a primary, and respectively secondary, sealing plate, housed in said groove, to allow a gas sweep, for example nitrogen.
  • a primary, and respectively secondary, mechanical coupling member comprises a plate distributing the forces on the primary and, respectively, secondary sealing barrier, and a means of primary and secondary stress transmission linked to said platen, the force transmission means of the secondary mechanical coupling member being connected to the carrier structure.
  • the force transmission means of the primary mechanical coupling member is connected to a secondary mechanical coupling member coaxial with the primary mechanical coupling member.
  • the force transmission means of the primary mechanical coupling member is connected to a secondary insulating block remote from the edges of the secondary insulating block, the secondary mechanical coupling members associated with said secondary insulating block being offset from said primary mechanical coupling member.
  • the primary and secondary insulation blocks comprise notches formed on two opposite edges of said primary and secondary insulation blocks, the notches formed in two primary and adjacent secondary insulation blocks being each time aligned to define a housing adapted to let through a primary mechanical coupling member, and respectively secondary.
  • the primary and secondary insulation blocks comprise sections cut at the corners of said primary and secondary insulation blocks, respectively the cut edges of four primary and secondary secondary insulation blocks, adjacent at a corner each defining a housing capable of passing a primary mechanical coupling member , and respectively secondary.
  • a primary and secondary insulation block consists of an insulating foam layer bordered on its two large faces by a plywood plate.
  • Such a tank can be part of a land storage facility, for example to store LNG or be installed in a floating structure, coastal or deep water, including a LNG tank, a floating storage and regasification unit (FSRU) , a floating production and remote storage unit (FPSO) and others.
  • FSRU floating storage and regasification unit
  • FPSO floating production and remote storage unit
  • a vessel for the transport of a cold liquid product comprises a double hull and a aforementioned tank disposed in the double hull.
  • the invention also provides a method of loading or unloading such a vessel, in which a cold liquid product is conveyed through isolated pipes from or to a floating or land storage facility to or from the vessel vessel.
  • the invention also provides a transfer system for a cold liquid product, the system comprising the abovementioned vessel, insulated pipes arranged to connect the vessel installed in the hull of the vessel to a floating storage facility. or terrestrial and a pump for driving a flow of cold liquid product through the insulated pipelines from or to the floating or land storage facility to or from the vessel vessel.
  • the element held with respect to the retaining structure is associated with a complementary element covered with a metal plate on the opposite side to the retaining structure and that the thread of the sleeve, which is not occupied by the first rod, receives the threaded end of a second rod, which provides the connection between the sleeve and a connection secured to the complementary element, said fitting comprising, in a complementary casing of the same structure as that of the coupler head, on the one hand, an elastic means interposed between a flange of the second rod and the complementary casing and, on the other hand, a threaded sleeve including a collar allows, by welding on the metal plate, to seal between the outer space and the inside of the complementary element.
  • the nut of the coupler foot externally has a square shape whose angles rub on the housing or on a part connected thereto.
  • the plates of the casings and / or complementary housing of the coupler may have a quadrangular shape.
  • the second rod of the coupler has at least a portion of smaller section than the first rod.
  • the supporting structure is the double hull of a ship and the element subjected to decohesion stresses is a sealed and thermally insulating barrier element of a tank integrated in the ship. It can be provided that the coupler is associated with a complementary element, which is a primary barrier element, the element closest to the supporting structure being a secondary barrier element.
  • the threaded sleeve of the complementary housing receives, on the farthest side of the support structure, the threaded end of a means forming a relief relative to the metal plate, which covers the complementary element.
  • the first wall of the element associated with the coupler can bear against the supporting structure with interposition of smoothing wedges.
  • the plate associated with that of the walls of the element and / or of the complementary element, which is furthest from the retaining structure is a thin metal plate formed by welding identical sections; in a first variant, the plate sections are welded clinch and comprise corrugations according to two orthogonal directions. In another variant, the plate sections are welded with raised edges.
  • the third subject of the present invention is an apparatus for pressing two metal sheets onto a plane support in order to maintain their relative positions for a welding operation on their free edges, characterized in that the right of the one of the sheets is positioned a support member disposed at a distance from the edges to be welded and carrying a pivot point at a fixed distance above the sheets to be welded, the pivot point of this support member being used as a pivot for a lever, one end of which is equipped with a pressure pad positioned at the edges of the weld, the lever being subjected, in addition, to the action of an actuator placed on one of the welding plates, the actuator being able to push the buffer on the edges to be welded to press the two sheets against each other in the vicinity of the weld site.
  • the actuator is an inflatable flexible hose, which is interposed between the lever and an area of one of the sheets to be welded, which is remote from the weld site; it is preferred that the pivot of the lever is further away from the actuator than the pressure pad.
  • the sheets to be welded are sheets having rectilinear corrugations, in particular parallel to the edges to be welded, each corrugation being positioned in a groove of the plane support; the grooves may have a cross section in the form of a V or a U and, advantageously, the branches of the V of a groove have an angular aperture of about 90 °.
  • the support member may be disposed in the area between the pressure pad and the groove closest to said buffer.
  • the plane support is a wall of a thermally insulating barrier element of a sealed and thermally insulating tank integrated in a structure carrying the the ship and the sheets to be welded constitute, after welding, a sealing barrier of said tank, the support member associated with the lever being provided by a mechanical coupling member, which ensures the cohesion of the thermally insulating barrier elements with the bearing structure of the tank; the support member associated with the lever is a raised means screwed into a sleeve or threaded end integral with a mechanical coupling member, said relief means being equipped with a peripheral collar, which is supported on the plates to solder to clin.
  • Some aspects of the invention consist in using as a sealing barrier, both primary and secondary, sheets having a network of corrugations directed towards the outside of the tank for the two barriers.
  • the advantage of such an arrangement is that it is possible for the two barriers to benefit from the elasticity provided by the undulation networks and to eliminate the disadvantages due to the presence, the primary sealing barrier, ripples projecting towards the inside of the tank.
  • FIG. 1 1 to 3 it can be seen that 1, as a whole, has designated a secondary insulating barrier formed of juxtaposed modular blocks and 2, as a whole, a primary insulating barrier formed of juxtaposed modular blocks.
  • these modular blocks are parallelepipedic pavers, namely secondary insulating pavers 28 and primary insulating pavers 29, but other geometries are also possible.
  • Each of these secondary insulating pavers 28, respectively primary 29, consists of a foam panel thermally insulating 1a, respectively 2a, of generally quadrangular shape; each panel 1a, respectively 2a is covered, on its large faces, a plywood bottom plate 1b, respectively 2b , and a plywood cover plate 1c , respectively 2c .
  • the bottom plate 1b of the secondary insulating blocks 28 bears against the carrier structure 3 of a ship by means of soft mastic pads 4.
  • 1 cover plates c and 2 c comprise grooves 5 having a quadrangular cross section, said grooves penetrating to foam layers 1 and 2a. Flat areas 46 are delimited between these grooves 5.
  • Each of the insulating barriers, secondary 1 and primary 2 respectively, carries on its wall farthest from the supporting structure 3, a sheet of metal, for example stainless steel, which constitutes a secondary, secondary or secondary 6, 7.
  • each of the secondary sealing barrier 6 and respectively 7 is primary in the form of an assembly of rectangular metal plates, secondary 25 and primary 25 has respectively, which comprise in each case the corrugations 8 having a V , the two branches of the V having an angular aperture of about 90 °. It is also possible to make an opening greater than 90 °, a lower opening being discouraged because of the welding difficulties that result.
  • each secondary metal plate 25 and respectively 25 a primary are made in two orthogonal directions, at equal distances, so that the network of corrugations defines flat inter-corrugation areas 40 of square shape (views perpendicular to the carrier structure 3), as is clearly visible on the Figures 1 and 1A for the secondary barrier.
  • the primary barrier can be realized identically.
  • the secondary 25 and primary 25 a metal plates are arranged on the secondary insulating pavers 28 and 29, respectively, so that the corrugations 8 are in each case housed in the grooves 5 of the underlying insulating pavers, whereas the planar zones 40 rest on the cover plate 1c or 2c corresponding in a flat area 46.
  • the figure 3 represents a preferred variant of the embodiment of the grooves 5 containing the corrugations 8 of the sealing barriers 6 or 7.
  • the branches of the V which constitute the cross section of the corrugation 8 are supported by spacers 9, which, at their upper part and at the bend of the V, leave free zones, which constitute channels in which nitrogen can be circulated, between the secondary or primary barrier 6 and the insulating pavers secondary 28 or primary 29.
  • These channels are an interesting device for safety in case of leakage.
  • the fact of supporting the branches of the V of the corrugation 8 improves the mechanical strength of the corrugations. Slots of relaxation can be provided below the grooves 5.
  • secondary insulating pavers 28 and primary 29 on the carrier structure 3 constituted by the double hull of the vessel where the tank is installed, is provided by means of mechanical coupling members, whose position is systematically around the periphery of the insulating pavers. 28 and 29 to maintain.
  • the Figures 1 and 1 a represent the relative arrangement of the secondary insulating barrier 1 and the secondary watertight barrier 6 according to one embodiment.
  • the secondary coupling members appear in plan by their upper ends 11.
  • a secondary metal plate 25 is of equal size to a secondary insulating pad 28 and is disposed offset by half a length and half a width with respect to secondary insulating blocks 28 which support it.
  • the coupling members 11 located At the edges of the secondary insulating pavers 28 are positioned at the center of the square inter-corrugation areas 40 of the secondary metal plate 25.
  • the lines 35 designate overlapping areas of the adjacent secondary metal plates.
  • the relative arrangement of the primary insulating barrier 2 and the primary watertight barrier 7 may be identical.
  • the gap between the edges of the insulating pavers and the edges of the metal plates they support has several advantages.
  • the sealing between the edges of the adjacent metal plates is simpler when these edges are regular, which would not be the case if it were also necessary to arrange attachment points of the couplers at the edges of the metal plates.
  • the areas between the adjacent insulating blocks, where the couplers are arranged are likely to have slight level offsets, due to the set of mounting of each insulating pad. These zones are therefore likely to offer a less uniform support surface for the metal waterproofing membrane than the central zones of the insulating pavers, hence a possible concentration of stresses in these zones located between the insulating pavers.
  • the most fragile areas of the waterproofing membrane namely the edges of the metal plates, are disposed on the areas where the support surface is the most uniform, while the areas between the insulating pavers are covered by the central portion of the metal plates 25 or 25a, which is more resistant to stress, in particular because of the elasticity imparted by the corrugations 8.
  • FIG. 2 provides a global representation of this first embodiment
  • the Figures 4 and 5 give a detailed representation of the mechanical coupling members.
  • the coupling members here comprise coaxial secondary couplers 41 and primary couplers 42: the primary coupler 42, which passes through the primary insulating barrier 2, is arranged along the same axis as the secondary coupler 41, which passes through the secondary insulating barrier 1. times, the passages of the secondary couplers 41, respectively primary 42, through the secondary insulating barrier 1, respectively primary 2, is constituted by notches 12 formed at the edge of the secondary insulating pads 28, respectively primary 29, and by notches angle 13 formed at the corners of the secondary insulating blocks 28, respectively primary 29.
  • the complete housing of a secondary coupler 41, respectively primary 42 is constituted by two notches 12 formed in two adjacent insulating pavers or by the four notches 13 of four adjacent pavers.
  • the coupling system of the primary and secondary insulating barriers 1 and 2 with respect to the carrier structure 3 consists of two types of couplers 41 and 42.
  • An embodiment of a secondary coupler 41 is shown. on the figure 4 .
  • This secondary coupler which serves to maintain the secondary insulating barrier 1 against the carrier structure 3 could be used for embodiments in which the insulation of the tank is obtained with a single insulating barrier.
  • the coupler 41 consists of a rod 14, which connects a coupler foot 15 welded to the carrier structure 3 and a coupler head 16 secured to the cover plate 1 c of a secondary insulating pad 28.
  • the coupler foot 15 comprises a housing 15 welded to the supporting structure 3.
  • the casing 15 a is substantially cylindrical and contains a stack of Belleville washers 15b and a nut 15c screwed on the rod 14.
  • the nut 15 c has a square shape and the nut angles rub on the housing 15 a so as to prevent rotation of the nut 15 c.
  • the bottom plate 1b of the insulating pad secondary 28 is based on a smoothing wedge 17.
  • the smoothing wedge 17 ensures the flatness of the support and makes possible partial disassembly of the insulation.
  • the cover plate 1c of the secondary insulating block 28 has a recess for the passage of a cylindrical housing 19, which externally defines the head 16.
  • This housing 19 is constituted by a cylindrical punch formed in the center of a square fixing plate 18.
  • the cylindrical housing 19 contains a thermally insulating ring 20, fitted around the end of a sleeve 21.
  • the sleeve 21 comprises at each of its two ends a threaded bore: in one of these bores is put in place that of the threaded ends of the rod 14, which does not cooperate with the nut 15 c .
  • the plate 18 is positioned in a countersink 22 of the cover plate 1c and is covered by the secondary sealing barrier 6.
  • a flanged edge 37 of the cylindrical housing 19 prevents any movement of the plate 18 and therefore transmits the forces of tearing supported by the secondary insulating pad 28 to the supporting structure 3 via the rod 14.
  • the elastic clearance obtained thanks to the Belleville washers 15 b compensates for thermal contractions and possible dynamic deformations of the shell.
  • a male end 24 having a flange 24 a .
  • the threaded portion 23 is engaged through a bore of the secondary metal plate 25 to be screwed into the sleeve 21.
  • the male end 24 constitutes a point of attachment which keeps the secondary metal plate 25 against the plate of lid 1 tbsp .
  • the flange 24 has allows the achievement of a tight welding on the secondary metal plate 25 about said bore to re-seal at that point of attachment.
  • This male end-piece 24 can be used for placing scaffolds or mounting tools in the tank, or an apparatus for pressing the sheets constituting the sealing barriers when they are joined by means of a weld. blink.
  • FIG. 5 represents the implementation of the secondary coupler 41, which has just been described, for coaxially fixing a primary coupler 42 such as that shown in FIG. figure 2 .
  • the left part of the figure 5 corresponds to the head 16 of the secondary coupler 41 shown in detail on the figure 4 , With the difference that it has replaced the pin connector 24 by a socket 26 having a threaded bore on the far side of the supporting structure 3.
  • the mouthpiece 26 also includes a peripheral flange 26 is likely to be welded to the secondary metal plate 25, which constitutes the secondary sealing barrier 6. It receives in its threaded bore, the threaded end of a rod 27 similar to the rod 14.
  • the threaded portion of the rod 27, which fits in the tip 26, has the same diameter as the rod 14, but the residual length of the rod 27 has a smaller diameter so as to allow rupture in the connection zone of the two diameters if the forces exerted on the organs are greater than a tolerable limit.
  • the rod 27 passes through the primary insulating barrier 2 to arrive in a connection 30, which provides the connection between the rod 27 and the cover plates 2 c of two or four primary insulating pavers 29.
  • This connector 30 comprises a housing 30 has all to analogous to the cylindrical housing 19 of the head of the secondary coupler 41 of the figure 4 .
  • the casing 30 is a cylindrical stamp obtained in the central zone of a plate 18 identical to that of the figure 4 and positioned in the same way as the primary metal plate 25 a.
  • the plate 18 is quadrangular. Inside the housing 30 a are arranged Belleville washers 30b and a flange 30c of the rod 27 based on the Belleville washers 30 b. In the housing 30a, is positioned a threaded sleeve 31 having, along its axis, an external thread referred to in the cylindrical casing 30a, and a threaded hole 38 facing the interior of the tank, allowing the possible fixing of relief means of the same type that the male end 24 shown on the figure 4 , not shown on the figure 5 .
  • the threaded sleeve 31 has a peripheral flange 31a, which can be welded to a primary metal plate 25 a.
  • the coupling members which have just been described, allow a slight relative rotation of the various elements assembled.
  • no other fastener is therefore necessary to maintain the sealed membranes on the walls of the tank.
  • the edges of the walls and the connections between the watertight barriers at the angles between two walls of the tank can be made by welding the sealed metal plates on corner angles, according to the known technique.
  • the Figures 8 to 10 represent a second embodiment of a tank wall, in which the coupling, which retains the primary 2 and secondary 1 insulating barriers against the carrier structure 3, is achieved by primary 33 and secondary 32 couplers, which are not aligned in their part where they pass through the primary and secondary insulating barriers 1.
  • the primary and secondary insulating blocks 29 and 28 are identical to those corresponding to the Figures 1 and 1A but they are arranged differently.
  • the lateral offset distance 61 is less than half the width of the blocks in the example shown in FIGS. Figures 8 and 9 .
  • the longitudinal offset distance 62 is equal to the longitudinal distance between two corrugations 8 in the example shown in FIG. figure 9 .
  • the primary 33 and secondary 32 couplers are no longer in alignment with each other as it is clearly visible on the figure 9 , where the positions of the primary couplers 33 are represented by the arrows P1, P2 and P3 and the positions of the secondary couplers 32 are represented by the arrows S1, S2 and S3. All couplers were not represented on the figure 9 . It is possible to use typically eight couplers per insulating block, depending on the dimensions of the insulating blocks.
  • the secondary coupler 32 is constituted by a rod 32, which by one of its ends is linked to the 3 and with its other end supporting structure, is bonded to the one cover wall c secondary insulating pavers 28.
  • the aforementioned links can be made identically to the first embodiment.
  • the primary coupler 33 includes a rod 33a, which by one of its ends is linked to 2c cover wall two or four primary insulating blocks 29 and by its other end is linked to the one cover wall c d a secondary insulating pad 28 remote from the edges thereof.
  • the connection of this rod 33 a with the lid walls 2c is carried out with a device corresponding exactly to that illustrated on the right side of the figure 5 and previously described.
  • the connecting rod 33 is with the cover wall 1c is performed by cooperation of a thread of the rod 33 a with a base 34 shown in figure 10 .
  • the rod 33a has a flange 33 b which is welded to the plate secondary metal 25 constituting the secondary sealing barrier.
  • the shifting of the primary 33 and secondary 32 couplers makes it possible to limit the thermal bridges between the inside of the vessel and the carrier structure 3. Moreover, an offset is maintained each time between the secondary metal plates 25, respectively 25a, and the secondary insulating pads 28, respectively primary 29, which support them, in the same way as in the first embodiment.
  • FIG 11 On the figure 11 , a section is shown, a primary or secondary sealed barrier equipped with a male end 24 such as that previously described and shown on the figure 4 .
  • the elements already described and which are found in the realization of Figures 11 and 12 have been designated in these new figures by the same references as for the Figures 1 to 10 and their description has not been repeated in detail. To facilitate the continuation of this description, it will be assumed that the figure 11 represents a secondary barrier but the situation would be identical if it were a primary barrier.
  • the adjacency zone of two secondary insulating pavers 28 with their plywood cover plates 1c is seen .
  • coupling elements (not visible on the figure 11 ) are arranged in the plane 51 located between two adjacent secondary insulating blocks 28.
  • the secondary sealing barrier 6 is constituted by the assembly of the plate plates 25, this assembly is done by a weld seam 52 of two adjacent plate plates.
  • the figure 12 represents an apparatus set up on the wall area described above and represented on the figure 11 .
  • the male end 24 constitutes here a pivot point 53 for a lever 54 which carries, at one of its ends, a pressure pad 55 and, at its other end, an actuator consisting of an inflatable flexible hose 56.
  • the lever 54 comprises a bore in which is engaged the threaded rod 43 of the male end 24 with sufficient clearance to allow some angular movement of the lever 54.
  • a nut 44 maintains this commitment.
  • the pivot point 53 is closer to the pressure pad 55 than to the inflatable hose 56 to multiply the force generated by the hose 56 and to have a high pressure at the pad 55.
  • the dimensions of the lever are such that the distance 53 -55 measured parallel to the metal sheets 25 is equal to the distance between the plane 51 and the axis along which the weld 52 has to be made. It can be seen that, in this way, the pressure pad 55 is applied to the site of the clutch weld 52, which makes it possible to press the two weld plates 25 against each other at the site of the weld. without having to pre-score.
  • a tank wall can be used in different types of tanks, an LNG tank in a land installation or in a floating structure such as a LNG tank or other.
  • a cutaway view of a 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 sealed barrier intended to be in contact with the LNG contained in the tank, a secondary sealed barrier arranged between the primary waterproof barrier and the double hull 72 of the vessel, and two insulating barriers respectively arranged between the primary watertight barrier and the secondary watertight barrier and between the secondary watertight barrier and the double shell 72.
  • loading / unloading lines 73 arranged on the upper deck of the ship can be connected, by means of appropriate connectors, to a marine or port terminal to transfer a cargo of LNG from or to the tank 71.
  • the figure 13 represents an example of a marine terminal comprising a loading and unloading station 75, an underwater pipe 76 and an onshore installation 77.
  • the loading and unloading station 75 is an off-shore fixed installation comprising a movable arm 74 and a tower 78 which supports the movable arm 74.
  • the movable arm 74 carries a bundle of insulated flexible pipes 79 that can connect to the loading / unloading pipes 73.
  • the movable arm 74 can be adapted to all gauges LNG carriers.
  • a connection pipe (not shown) extends inside the tower 78.
  • the loading and unloading station 75 enables the loading and unloading of the LNG tank 70 from or to the shore facility 77.
  • the underwater line 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the onshore installation 77 over a large distance, for example 5 km, which makes it possible to keep the tanker vessel 70 at great distance from the coast during the loading and unloading operations.
  • pumps on board the ship 70 and / or pumps equipping the shore installation 77 and / or pumps equipping the loading and unloading station 75 are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Piles And Underground Anchors (AREA)
EP12734992.6A 2011-07-06 2012-06-26 Cuve etanche et thermiquement isolante Active EP2729729B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20160693TT HRP20160693T1 (hr) 2011-07-06 2016-06-17 Toplinsko-izolirani zabrtvljeni spremnik

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1156093A FR2977575B1 (fr) 2011-07-06 2011-07-06 Coupleur pour maintenir un element par rapport a une structure de retenue
PCT/FR2012/051459 WO2013004944A1 (fr) 2011-07-06 2012-06-26 Cuve etanche et thermiquement isolante

Publications (2)

Publication Number Publication Date
EP2729729A1 EP2729729A1 (fr) 2014-05-14
EP2729729B1 true EP2729729B1 (fr) 2016-03-23

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EP12734992.6A Active EP2729729B1 (fr) 2011-07-06 2012-06-26 Cuve etanche et thermiquement isolante

Country Status (11)

Country Link
EP (1) EP2729729B1 (ja)
JP (1) JP6087913B2 (ja)
KR (1) KR102061171B1 (ja)
CN (1) CN103635737B (ja)
AU (1) AU2012280145B2 (ja)
ES (1) ES2576984T3 (ja)
FR (1) FR2977575B1 (ja)
HR (1) HRP20160693T1 (ja)
MY (1) MY168363A (ja)
PL (1) PL2729729T3 (ja)
WO (1) WO2013004944A1 (ja)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2971929A4 (en) * 2013-03-15 2016-11-09 Bechtel Oil Gas And Chemicals Inc SYSTEMS AND METHODS FOR MANUFACTURING A SUBSTANTIALLY WATERPROOF WALL
JP6331350B2 (ja) * 2013-11-19 2018-05-30 株式会社Ihi 低温タンク
KR101652220B1 (ko) * 2014-09-19 2016-08-31 삼성중공업 주식회사 액화가스 화물창
FR3026459B1 (fr) 2014-09-26 2017-06-09 Gaztransport Et Technigaz Cuve etanche et isolante comportant un element de pontage entre les panneaux de la barriere isolante secondaire
FR3030014B1 (fr) * 2014-12-15 2017-10-13 Gaztransport Et Technigaz Bloc isolant convenant pour realiser une paroi isolante dans une cuve etanche
FR3035174B1 (fr) * 2015-04-15 2017-04-28 Gaztransport Et Technigaz Cuve equipee d'une paroi presentant une zone singuliere au travers de laquelle passe un element traversant
FR3038690B1 (fr) * 2015-07-06 2018-01-05 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante ayant une membrane d'etancheite secondaire equipee d'un arrangement d'angle a toles metalliques ondulees
FR3042253B1 (fr) * 2015-10-13 2018-05-18 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
KR102266246B1 (ko) * 2016-11-28 2021-06-17 대우조선해양 주식회사 액화천연가스 화물창의 단열 시스템
JP6577006B2 (ja) * 2017-11-28 2019-09-18 ジャパンマリンユナイテッド株式会社 防熱構造及び防熱タンク
FR3074560B1 (fr) * 2017-12-04 2021-06-04 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
KR200491919Y1 (ko) * 2018-06-21 2020-07-01 삼성중공업 주식회사 화물창 조립용 앵커 장치
KR102158648B1 (ko) * 2018-12-20 2020-09-23 대우조선해양 주식회사 액화천연가스 저장탱크의 단열벽 고정장치
FR3094071B1 (fr) * 2019-03-21 2021-04-02 Gaztransport Et Technigaz Cuve étanche et thermiquement isolante
JP7336356B2 (ja) 2019-10-31 2023-08-31 キヤノン株式会社 レンズ装置および撮像装置
CN117068326B (zh) * 2023-10-13 2024-02-09 沪东中华造船(集团)有限公司 一种薄膜型围护系统
CN117068325B (zh) * 2023-10-13 2024-02-09 沪东中华造船(集团)有限公司 一种薄膜型围护系统绝缘模块受冷变形自适应调整方法

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FR1492959A (fr) 1966-05-20 1967-08-25 Technigaz Structure de coin de paroi intérieure d'enceinte de confinement ou analogue, son procédé de construction et ses diverses applications
BE847581A (fr) * 1975-11-03 1977-02-14 Citerne isolee pour liquides cryogeniques,
FR2798358B1 (fr) * 1999-09-14 2001-11-02 Gaz Transport & Technigaz Cuve etanche et thermiquement isolante integree dans une structure porteuse de navire, a structure d'angle simplifiee
FR2798902B1 (fr) * 1999-09-29 2001-11-23 Gaz Transport & Technigaz Cuve etanche et thermiquement isolante integree dans une structure porteuse de navire et procede de fabrication de caissons isolants destines a etre utilises dans cette cuve
FR2826630B1 (fr) 2001-06-29 2003-10-24 Gaz Transport & Technigaz Cuve etanche et thermiquement isolante avec aretes longitudinales obliques
FR2829194B1 (fr) 2001-09-05 2004-11-19 Parker Hannifin Rak Sa Ilot de modules pneumatiques
FR2877639B1 (fr) 2004-11-10 2006-12-15 Gaz Transp Et Technigaz Soc Pa Cuve etanche et thermiquement isolee integree a la stucture porteuse d'un navire
WO2006062271A1 (en) * 2004-12-08 2006-06-15 Korea Gas Corporation Lng storage tank and constructing method thereof
ES2383392B1 (es) * 2007-05-29 2013-05-03 Hyundai Heavy Industries Co., Ltd. Sistema de aislamiento de tanques de almacenamiento de gnl que tiene una barrera secundaria soldada y metodo de construccion del mismo
KR101058522B1 (ko) 2009-02-05 2011-08-23 한국과학기술원 단열 구조체 및 이를 갖는 극저온 액체저장탱크

Also Published As

Publication number Publication date
FR2977575A1 (fr) 2013-01-11
AU2012280145B2 (en) 2016-09-15
AU2012280145A1 (en) 2014-01-23
CN103635737A (zh) 2014-03-12
JP2014520702A (ja) 2014-08-25
ES2576984T3 (es) 2016-07-12
PL2729729T3 (pl) 2016-09-30
FR2977575B1 (fr) 2014-06-27
WO2013004944A1 (fr) 2013-01-10
KR20140047679A (ko) 2014-04-22
HRP20160693T1 (hr) 2016-07-15
KR102061171B1 (ko) 2020-02-11
JP6087913B2 (ja) 2017-03-01
CN103635737B (zh) 2015-12-23
MY168363A (en) 2018-10-31
EP2729729A1 (fr) 2014-05-14

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