EP2984383A2 - Sealed and thermally insulating tank for storing a fluid - Google Patents

Sealed and thermally insulating tank for storing a fluid

Info

Publication number
EP2984383A2
EP2984383A2 EP14721452.2A EP14721452A EP2984383A2 EP 2984383 A2 EP2984383 A2 EP 2984383A2 EP 14721452 A EP14721452 A EP 14721452A EP 2984383 A2 EP2984383 A2 EP 2984383A2
Authority
EP
European Patent Office
Prior art keywords
panel
thermal insulation
metal
tank
wall
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.)
Granted
Application number
EP14721452.2A
Other languages
German (de)
French (fr)
Other versions
EP2984383B1 (en
Inventor
Marc BOYEAU
Sébastien DELANOE
Johan Bougault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gaztransport et Technigaz SA
Original Assignee
Gaztransport et Technigaz SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gaztransport et Technigaz SA filed Critical Gaztransport et Technigaz SA
Publication of EP2984383A2 publication Critical patent/EP2984383A2/en
Application granted granted Critical
Publication of EP2984383B1 publication Critical patent/EP2984383B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • B63B27/25—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines for fluidised bulk material
    • 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
    • F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
    • F17C3/06—Vessels not under pressure with provision for thermal insulation by insulating layers on the inner surface, i.e. in contact with the stored fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2203/0329—Foam
    • F17C2203/0333—Polyurethane
    • 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
    • F17C2203/0354—Wood
    • 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
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F17C2203/0643—Stainless steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0646—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0648—Alloys or compositions of metals
    • F17C2203/0651—Invar
    • 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
    • F17C2209/227—Assembling processes by adhesive means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/013—Reducing manufacturing time or effort
    • 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

  • Watertight and thermally insulating tank for storing a fluid
  • the invention relates to the field of tanks, sealed and thermally insulating, membranes for storing and / or transporting fluid, such as a cryogenic fluid.
  • LNG liquefied natural gas
  • these tanks can be installed on the ground or on a floating structure. In the case of a floating structure, the tank may be intended for the transport of liquefied natural gas or to receive liquefied natural gas used as fuel for the propulsion of the floating structure.
  • the document FR 2 691 520 describes a sealed and thermally insulating tank having successively, in the direction of the thickness, from the inside towards the outside of the tank, a primary sealing membrane, in contact with the fluid contained in the tank, a primary thermally insulating barrier, a secondary waterproofing membrane, a secondary thermally insulating barrier and a supporting structure made of metal sheets forming the hull or the double hull of a merchant ship, such as a LNG carrier.
  • the corner areas of the tank are made from a pre-assembled dihedral corner structure, illustrated in Figure 3 of FR 2 691 520.
  • Such a pre-assembled angle structure comprises two beveled insulating plates, connected by means of a corner connection and forming the secondary insulation barrier, a flexible membrane resting on the insulating plates of the secondary insulation barrier and constituting the secondary sealing barrier, and two other beveled insulating plates, connected by means of a corner connection and forming the primary insulation barrier.
  • Such an angle structure is advantageous in that it allows a pre-assembly in the workshop of corner structures.
  • these angle structures are heavy and bulky which makes their transport and handling difficult. They are, moreover, relatively complex to manufacture.
  • An idea underlying the invention is to provide a sealed and thermally insulating vessel in which the angle structure is particularly simple to achieve.
  • the invention provides a sealed and thermally insulating tank for storing a fluid, said sealed tank comprising an external supporting structure, a thermal insulation barrier retained on the supporting structure and a sealing membrane comprising corrugations extending in two perpendicular directions and supported by the thermal insulation barrier, the thermal insulation barrier having a corner structure disposed at an intersection between a first and a second wall of the supporting structure, said structure of angle comprising first and second heat-insulating panels each having an outer face disposed opposite the supporting structure, an inner face provided with an anchoring member of the sealing membrane and lateral edges, the first panel having an outer surface resting against the first wall of the supporting structure and a lateral edge resting against the second wall of the carrier structure and the second panel having an outer face resting against the second wall of the carrier structure and a side edge resting against the inner face of the first panel.
  • the corner structure of the thermal insulation barrier comprises two easily transportable panels.
  • the manufacture of such an angle structure is simplified.
  • such a sealed and thermally insulating tank may comprise one or more of the following characteristics.
  • the first and second panels each comprise an inner plywood plate and an outer plywood plate defining respectively the inner face and the outer face of said first and second panels and an insulating polymeric foam layer sandwiched between said inner and outer plywood plates; . the side edge of the first panel resting against the second wall is provided with a plywood plate.
  • the outer face of the first panel resting against the first wall, the lateral edge of the first panel resting against the second wall and the outer face of the second panel resting against the second wall are glued to the supporting structure.
  • the first and second panels each comprise, on their inner face, an anchoring member of the sealing membrane comprising a metallic connecting strip extending along an axis, parallel to the intersection between the first and second walls; said sealing membrane having metal plates extending on either side of said corner structure and an angle extending between a metal bonding strip of the first panel and a metal bonding strip of the second panel, the metal plates having edges welded to the metal bonding strips or the angle, said bracket having edges welded to the edges of the metal plates welded to said metal bonding strips or metal bonding strips.
  • a metal bonding strip is retained in a recess formed on the inner face of the first or second panel and mounted in said recess with a sliding clearance in a direction transverse to the direction of said metal bonding strip so as to allow a movement of the metal bonding strip, respectively in the plane of the first or the second panel.
  • the thermal insulation barrier is a secondary thermal insulation barrier and the waterproofing membrane is a secondary waterproofing membrane, the tank further comprising a primary thermal insulation barrier and a primary waterproofing membrane.
  • first and second panels are provided with studs for securing the primary thermal insulation barrier, projecting inwardly from the inner face of said first and second panels.
  • the fixing studs of the primary thermal insulation barrier extend in the axis of one of the metal bonding strips and the edges of the metal plates welded to the metal bonding strips and / or the angle and the edges of the the angle welded to the metal binding strips and / or at the edges metal plates welded to said metal bonding strips are provided with cutouts for the passage of the fastening studs of the primary thermal insulation barrier.
  • the primary thermal insulation barrier comprises, at the intersection between the first and the second walls of the supporting structure, an angle structure comprising a first and a second primary thermal insulation panel each having an outer face arranged in a screw with respect to the secondary sealing membrane, an inner face provided with an anchoring member of the primary sealing membrane and lateral edges, the first primary thermal insulation panel having a lateral edge resting against the secondary waterproofing membrane and the second primary thermal insulation panel having a lateral edge resting against the inner face of the first primary thermal insulation panel,
  • the angle formed between the first and the second wall is 90 °.
  • the first wall is a horizontal wall and the second wall is a vertical wall.
  • 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 fluid comprises a double hull and a said tank, in which the double hull forms the external bearing structure of the tank.
  • the invention also provides a method for loading or unloading such a vessel, in which a fluid is conveyed through isolated pipes from or to a floating or land storage facility to or from the tank of the vessel. ship.
  • the invention also provides a transfer system for a fluid, the system comprising the abovementioned vessel, insulated pipes arranged to connect the vessel installed in the hull of the vessel to a floating or ground storage facility. and a pump to drive a fluid flow through the isolated pipelines from or to the floating or land storage facility to or from the vessel vessel.
  • Figure 1 is a sectional view of a sealed and thermally insulating tank having two sealing membranes and two thermal insulation barriers, at a corner area.
  • Figure 2 is a sectional view illustrating a secondary thermal insulation barrier at a corner area.
  • FIG. 3 is a detailed view of zone III of FIG.
  • FIG. 4 is a perspective view of a secondary thermal insulation barrier angle structure and an angle bracket to be fitted against said corner structure.
  • Figure 5 is a perspective view, partially broken away of a secondary sealing barrier and a secondary thermal insulation barrier.
  • FIGS. 6a, 6b and 6c are respectively detailed views of the Via, Vlb and Vie zones of FIG. 5.
  • FIG. 7 is a perspective view, partly broken away, of a tank having a primary waterproofing membrane, a primary thermal insulation barrier, a secondary waterproofing membrane and a secondary thermal insulation barrier.
  • Figure 8a, 8b and 8c are respectively detailed views of the Villa, Vlllb and City areas of Figure 7.
  • FIG. 9 is a cutaway schematic representation of a vessel of a LNG carrier and a loading / unloading terminal of this vessel. Detailed description of embodiments
  • FIG. 1 there is shown a sealed and thermally insulating vessel structure having, from the outside to the inside of the vessel, a carrier structure 1, a secondary heat-insulating barrier 2, a secondary sealing membrane 3, a primary thermally insulating barrier 4 and a primary sealing membrane 5 intended to be in contact with the cryogenic fluid contained in the tank.
  • the supporting structure 1 can in particular be a self-supporting metal sheet or more generally any type of rigid partition having suitable mechanical properties.
  • the supporting structure 1 may in particular be formed by the hull or the double hull of a ship.
  • the supporting structure 1 comprises a plurality of walls defining the general shape of the tank.
  • the carrier structure 1 comprises a first wall 6 forming the bottom of the tank and a second wall 7 forming a vertical wall of the vessel.
  • the secondary thermal insulation barrier 2 comprises a plurality of insulation blocks 8, 9 disposed on the surface of the walls 6, 7 of the supporting structure 1 and anchored on said supporting structure 1 by means of resin strands, not illustrated, and / or welded studs on the carrier structure 1, not shown.
  • the insulation blocks 8, 9 comprise a layer of insulating polymer foam 10 sandwiched between an internal rigid plate 11 and an external rigid plate 12.
  • the internal rigid plates 1 1 and outer 12 are, for example, plywood boards glued to said foam layer 10.
  • the insulating polymer foam may in particular be a polyurethane foam, possibly high density and optionally reinforced with glass fibers.
  • the insulation blocks 8, 9 are hatched in the perspective view of FIG. 5.
  • the insulation blocks 8, 9 have a substantially rectangular parallelepiped shape.
  • the insulation blocks 8, 9 have, according to their two axes of symmetry, a metal connecting strip 14, which is placed in a recess and is fixed by screws, rivets, staples or glue. In the crossing zone of the metal connecting strips 14, a stud 15 protruding inwards and allowing the fixing of the primary thermal insulation barrier 4 has been formed.
  • the secondary sealing membrane 3 is obtained by assembling a plurality of metal plates 16a, 16b welded edge to edge and having a substantially rectangular shape. Outside the corner zone, the metal plates 16a comprise, in each of the two axes of symmetry of this rectangle, a corrugation 17 forming a relief in the direction of the supporting structure 1.
  • the metal plates 16a are here arranged in a staggered manner. relative to the insulation blocks 8, 9 such that each of said metal plates 16a straddles four adjacent insulation blocks 8, 9.
  • the corrugations 17 form a relief in the direction of the supporting structure 1 and are housed in gaps of the secondary thermal insulation barrier 2 formed between two adjacent insulation blocks 8, 9.
  • the adjacent metal plates 16a are welded together.
  • the maintenance of metal plates 16a on the insulating blocks 8, 9 is achieved by means of metal bonding strips 14 on which at least two edges of said metal plates 16a are welded.
  • the secondary waterproofing membrane 3 comprises metal plates 16b ensuring the junction of the secondary waterproofing membrane 3 to the corner structure and whose width may be different from that of the other metal plates 16a so to adapt to the dimensions of the corner structure.
  • the metal plates 16b are also provided with two perpendicular corrugations 17 forming a relief in the direction of the supporting structure 1 and extending respectively in a gap 13 between the insulation blocks 8, 9 and panels 18, 19 forming the structure. angle of the secondary thermal insulation barrier 2 and in a gap between two adjacent insulation blocks 8, 9.
  • the metal plates 16a, 16b of the secondary sealing membrane 3 are, for example, made of Invar ®: an alloy of iron and nickel whose expansion coefficient is typically between 1, 5.10 "6 and 2.10 " 6 K "1 .
  • the angle structure of the secondary thermal insulation barrier 2 is observed.
  • Said angle structure comprises horizontal and vertical heat-insulating panels 18, 19 of rectangular parallelepipedal shape.
  • the panels 18, 19 of the corner structure comprise an insulating polymer foam layer sandwiched between two rigid inner and outer plywood plates, for example, glued together. on said foam layer.
  • a horizontal panel 18 is positioned horizontally against the supporting structure 1 so that its outer face rests against the first wall 6 and one of its lateral edges 20 rests against the second wall 7.
  • the angle formed between the outer face of a horizontal panel 18 and its side edge 20 is equal to the angle formed at the intersection between the walls 6, 7, or 90 ° in the embodiment shown.
  • a horizontal panel 18 is fixed to the supporting structure 1, for example by gluing the outer face of said panel 18 and, optionally, its lateral edge 20 respectively against the horizontal wall 6 and the vertical wall 7.
  • the side edge 20 of a horizontal panel 18 resting against the vertical wall 7 is provided with a plywood plate.
  • a plywood plate makes it easier to place the panel 18 and / or improves the effectiveness of the bonding of the lateral edge 20 of the panel 18 against the vertical wall 7 of the supporting structure 1 when said lateral edge 20 is glued to the supporting structure 1.
  • a vertical panel 19 is positioned against the carrier structure 1 so that its outer face rests against the wall 7 and its lower side edge 21 rests against the inner face of the vertical panel 18.
  • the angle formed between the lower side edge 21 of the vertical panel 19 and its outer face is, therefore, equal to the angle formed between the wall 7 of the carrier structure 1 and the inner face of the first panel 18, or 90 ° in the embodiment shown .
  • the second panel 19 is fixed to the supporting structure 1 by bonding its outer face against the wall 7.
  • the panels 18 and 19 have on their inner face metal connecting strips 22. These metal connecting strips 22 extend along an axis parallel to the edge formed at the intersection between the walls 6, 7. metal connecting strips 22 are used for anchoring the metal plates 16b ensuring the junction of the secondary sealing membrane 3 to the corner structure.
  • the metal connecting strips 22 are retained in a recess 27, illustrated in FIG. 3, which is formed in the internal rigid plate of the panels 18, 19. According to one embodiment, the metal connecting strips 22 are fixed on the inner rigid plate of the panels 18, 19 by means of fasteners, not shown, passing through orifices in the metal connecting strips 22.
  • the fastening members are for example rivets or screws .
  • the metal connecting strips 22 are mounted with a sliding clearance j in a direction transverse to the direction of said metal connecting strips 22.
  • the sliding clearance j illustrated in FIG. 3, is of order of 5mm.
  • Such a sliding clearance allows a movement of the metal connecting strip 22 in the plane of the panel 18, 19, in the direction opposite to the supporting structure 1, during the cold setting of the tank, under the effect of thermal contractions of the secondary sealing membrane 3.
  • the sliding clearance of the metal bonding strips 22 makes it possible to limit the stresses resulting from the thermal contraction.
  • the orifices formed in the metal connecting strips 22 for the passage of the fasteners have an oblong shape whose greatest length extends in a direction transverse to the direction of the metal bonding strips 22 so to allow sliding in the aforementioned direction.
  • the metal plates 16b On both sides of the corner structure, the metal plates 16b, at the edge of the wall, have edges which are welded along the said metal connecting strips 22, the other edges of the said metal plates 16b being welded with overlap with the edges of the adjacent metal plates 16a, 16b.
  • an angle iron 23 having an L-shaped section comprising two perpendicular flanges, extends between a metal bonding strip 22 fixed to the internal face of a horizontal panel 18 and a metal bonding strip 22 fixed to the internal face. of a vertical panel 19 so as to seal the secondary sealing membrane 3 at the corner area.
  • the angle 23 is, for example, made in Invar ®.
  • the angle 23 is welded by overlap on the edges of the metal plates 16b which are welded to the metal bonding strips 22.
  • the panels 18, 19 furthermore comprise studs 24 projecting towards the inside of the tank and making it possible to fix the primary thermal insulation barrier 4 on the secondary thermal insulation barrier 2.
  • the base of the studs is welded on metal plates 25, fixed to said panels 18, 19, by screws, rivets, staples or glue.
  • metal bonding strips 22 are formed of discontinuous juxtaposed segments and the metal plates 25 supporting the studs 24 are arranged in the axis of said metal bonding strips 22 between two of their adjacent segments.
  • the edges of the angle 23 and the edges of the metal plates 16b are provided with cutouts 26 allowing the passage
  • the angle 23 and the metal plates 16b are, at the level of said cutouts 26, welded to the metal plates 25.
  • the panels 18 and 19 have a length I and a thickness e identical while the width L1 of the vertical panel 18 is greater than the width L2 of the horizontal panel 19.
  • the width L1 of the horizontal panel 18 is equal to the sum of the width L2 of the vertical panel 19 and the thickness e of said panels 18, 19.
  • a plurality of horizontal panels 18 and vertical panels 19 can be arranged along the intersection between the first and the second wall 6, 7.
  • a gap 28 is formed between the vertical panels 18 and adjacent horizontal 19 and a metal joining piece, not shown, provides sealing between two brackets 23 adjacent.
  • a metal joining piece has substantially an L shape and comprises a corrugation extending along the gap 28, in the extension of a corrugation of the adjacent metal plates 16b and projecting inside said gap 28
  • Said connecting piece is welded at the two ends of the corrugation to the edges of the metal plates 16b and have, on either side of said corrugation, flat edges allowing welding of said metal joining piece on the angles 23 adjacent.
  • FIGS. 7, 8a, 8b and 8c illustrate more particularly the arrangement of the primary thermal insulation barrier 4 and the primary waterproofing membrane 5.
  • the primary thermal insulation barrier 4 comprises a plurality of heat-insulating panels 29a, 29b, 29c of substantially rectangular parallelepipedal shape covering the secondary sealing membrane 3.
  • the heat-insulating panels 29a, 29b, 29c comprise a layer of insulating polymer foam taken into consideration. sandwich between two rigid inner and outer plates, of plywood for example, glued on said layer of foam.
  • heat-insulating panels 29a, 29b, 29c of the primary thermal insulation barrier 4 also have on their inner face metal bonding strips 33 for anchoring, by welding, the primary sealing barrier 5.
  • the primary waterproofing membrane 5 is obtained by assembling a plurality of metal plates 34, welded to each other along their edges.
  • the metal plates 34 comprise two series of corrugations extending in perpendicular directions.
  • the corrugations of the primary waterproofing membrane 5 protrude from the side of the inner face of the metal plates 34.
  • the metal plates 34 are, for example, made of stainless steel sheet or aluminum, shaped by folding or by stamping.
  • the metal plates 34 are offset from the heat-insulating panels 29a, 29b, 29c, each of said metal plates extending over four adjacent heat-insulating panels 29a, 29b, 29c.
  • a horizontal panel 29a has an outer face resting against the secondary sealing membrane 3 and a lateral edge 35 resting against the vertical flange of the angle plate 23.
  • a vertical panel 29b has an outer face resting against the secondary sealing membrane 3 while a 36 of its lateral edges rests against the inner surface of the horizontal panel 29a.
  • FIGS. 8a and 8b The fixing of the panels 29a, 29b to the studs 24 fixed to the secondary thermal insulation membrane 2 is shown in FIGS. 8a and 8b.
  • the vertical panels 29a and horizontal 29b have at their corners, a recess of the insulating foam and the inner rigid plate relative to the outer rigid plate.
  • the outer rigid plate furthermore has a cutout allowing the stud 24 to pass therethrough.
  • a nut, not shown, mounted on the threaded stud 24 is able to retain the rigid plate external to the secondary thermal insulation barrier 2.
  • the vertical panels 29a and horizontal panels 29b have orifices 39 allowing the passage of studs 24.
  • the orifice 39 has a shoulder, not shown, serving to support a nut screwed onto a threaded stud 24, introduced through the orifice 39.
  • a nut screwed on the stud bolt 24 abuts against said shoulder so as to ensure a fixing of the panels 29a, 29b.
  • the primary waterproofing membrane 5 comprises at the level of the corner zone a corrugated metal angle 37, illustrated in FIG. 9c.
  • the corrugated angle 37 has corrugations 38, orthogonal to the walls 6, 7 extending in the extension of one of the series of corrugations of the metal plates 34.
  • the edges of the corrugated angle 37 are welded overlap with the adjacent edges metal plates 34 and with the edges of corrugated brackets 37 adjacent. At least two of the edges of the corrugated angle are anchored on metal connecting strips 33 of the panels 29a, 29b.
  • a cutaway view of a LNG tank 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 has a sealed barrier primary material intended to be in contact with the LNG contained in the tank, a secondary watertight barrier arranged between the primary waterproof barrier and the double hull 72 of the ship, and two insulating barriers arranged respectively between the primary watertight barrier and the secondary watertight barrier and between the secondary watertight barrier and the double hull 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.
  • FIG. 9 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 a fixed off-shore installation comprising an arm mobile 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 of 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.

Abstract

The invention relates to a sealed and thermally insulating tank for storing a fluid, said sealed tank comprising an external bearing structure (1), a thermal insulation barrier (2) held on the bearing structure (1) and a sealing barrier (3) supported by the thermal insulation barrier (2), the thermal insulation barrier (2) comprising a corner structure arranged at the intersection between a first and a second wall (6, 7) of the bearing structure (1), said corner structure comprising a first and a second lagged panel (18, 19) each having an external face positioned facing the bearing structure (1), an internal face provided with a member (22) for anchoring the sealing barrier (3) and lateral edges (20, 21), the first panel (18) comprising an external face resting against the first wall (6) of the bearing structure (1) and a lateral edge (20) resting against the second wall (7) of the bearing structure (1), the second panel (19) comprising an external face resting against the second wall (7) of the bearing structure (1) and a lateral edge (21) resting against the external face of the first panel (18).

Description

Cuve étanche et thermiquement isolante de stockage d'un fluide  Watertight and thermally insulating tank for storing a fluid
Domaine technique Technical area
L'invention se rapporte au domaine des cuves, étanches et thermiquement isolantes, à membranes pour le stockage et/ou le transport de fluide, tel qu'un fluide cryogénique. The invention relates to the field of tanks, sealed and thermally insulating, membranes for storing and / or transporting fluid, such as a cryogenic fluid.
Des cuves étanches et thermiquement isolées à membranes sont notamment employées pour le stockage de gaz naturel liquéfié (GNL), qui est stocké, à pression atmosphérique, à environ -162°C. Ces cuves peuvent être installées à terre ou sur un ouvrage flottant. Dans le cas d'un ouvrage flottant, la cuve peut être destinée au transport de gaz naturel liquéfié ou à recevoir du gaz naturel liquéfié servant de carburant pour la propulsion de l'ouvrage flottant. Watertight and thermally insulated membrane tanks are used in particular for the storage of liquefied natural gas (LNG), which is stored at atmospheric pressure at about -162 ° C. These tanks can be installed on the ground or on a floating structure. In the case of a floating structure, the tank may be intended for the transport of liquefied natural gas or to receive liquefied natural gas used as fuel for the propulsion of the floating structure.
Arrière-plan technologique Technological background
Le document FR 2 691 520 décrit une cuve étanche et thermiquement isolante présentant successivement, dans le sens de l'épaisseur, depuis l'intérieur vers l'extérieur de la cuve, une membrane d'étanchéité primaire, en contact avec le fluide contenu dans la cuve, une barrière thermiquement isolante primaire, une membrane d'étanchéité secondaire, une barrière thermiquement isolante secondaire et une structure porteuse constituée de tôles métalliques formant la coque ou la double-coque d'un navire marchand, tel qu'un méthanier. Les zones d'angle de la cuve sont réalisées à partir d'une structure d'angle pré-assemblée, en forme de dièdre, illustrée sur la figure 3 du document FR 2 691 520.  The document FR 2 691 520 describes a sealed and thermally insulating tank having successively, in the direction of the thickness, from the inside towards the outside of the tank, a primary sealing membrane, in contact with the fluid contained in the tank, a primary thermally insulating barrier, a secondary waterproofing membrane, a secondary thermally insulating barrier and a supporting structure made of metal sheets forming the hull or the double hull of a merchant ship, such as a LNG carrier. The corner areas of the tank are made from a pre-assembled dihedral corner structure, illustrated in Figure 3 of FR 2 691 520.
Une telle structure d'angle pré-assemblée comporte deux plaques isolantes biseautées, raccordées au moyen d'un raccord d'angle et formant la barrière d'isolation secondaire, un membrane souple reposant sur les plaques isolantes de la barrière d'isolation secondaire et constituant la barrière d'étanchéité secondaire, et deux autres plaques isolantes biseautés, raccordées au moyen d'un raccord d'angle et formant la barrière d'isolation primaire. Une telle structure d'angle est avantageuse en ce qu'elle permet un pré-assemblage en atelier des structures d'angle. Toutefois, en contrepartie, ces structures d'angles sont lourdes et encombrantes ce qui rend leur transport et leur manutention difficiles. Elles sont, en outre, relativement complexes à fabriquer. Such a pre-assembled angle structure comprises two beveled insulating plates, connected by means of a corner connection and forming the secondary insulation barrier, a flexible membrane resting on the insulating plates of the secondary insulation barrier and constituting the secondary sealing barrier, and two other beveled insulating plates, connected by means of a corner connection and forming the primary insulation barrier. Such an angle structure is advantageous in that it allows a pre-assembly in the workshop of corner structures. However, in return, these angle structures are heavy and bulky which makes their transport and handling difficult. They are, moreover, relatively complex to manufacture.
Résumé  summary
Une idée à la base de l'invention est de proposer une cuve étanche et thermiquement isolante dans laquelle la structure d'angle est particulièrement simple à réaliser.  An idea underlying the invention is to provide a sealed and thermally insulating vessel in which the angle structure is particularly simple to achieve.
Selon un mode de réalisation, l'invention fournit une cuve étanche et thermiquement isolante de stockage d'un fluide, ladite cuve étanche comportant une structure porteuse externe, une barrière d'isolation thermique retenue sur la structure porteuse et une membrane d'étanchéité comportant des ondulations s'étendant selon deux directions perpendiculaires et supportée par la barrière d'isolation thermique, la barrière d'isolation thermique comportant une structure d'angle disposée à une intersection entre une première et une seconde parois de la structure porteuse, ladite structure d'angle comportant un premier et un second panneaux calorifuges présentant chacun une face externe disposée en vis-à-vis de la structure porteuse, une face interne pourvue d'un organe d'ancrage de la membrane d'étanchéité et des bords latéraux, le premier panneau présentant une face externe reposant contre la première paroi de la structure porteuse et un bord latéral reposant contre la seconde paroi de la structure porteuse et le second panneau présentant une face externe reposant contre la seconde paroi de la structure porteuse et un bord latéral reposant contre la face interne du premier panneau.  According to one embodiment, the invention provides a sealed and thermally insulating tank for storing a fluid, said sealed tank comprising an external supporting structure, a thermal insulation barrier retained on the supporting structure and a sealing membrane comprising corrugations extending in two perpendicular directions and supported by the thermal insulation barrier, the thermal insulation barrier having a corner structure disposed at an intersection between a first and a second wall of the supporting structure, said structure of angle comprising first and second heat-insulating panels each having an outer face disposed opposite the supporting structure, an inner face provided with an anchoring member of the sealing membrane and lateral edges, the first panel having an outer surface resting against the first wall of the supporting structure and a lateral edge resting against the second wall of the carrier structure and the second panel having an outer face resting against the second wall of the carrier structure and a side edge resting against the inner face of the first panel.
Ainsi, la structure d'angle de la barrière d'isolation thermique comporte deux panneaux facilement transportables. En outre, la fabrication d'une telle structure d'angle est simplifiée.  Thus, the corner structure of the thermal insulation barrier comprises two easily transportable panels. In addition, the manufacture of such an angle structure is simplified.
Selon des modes de réalisation, une telle cuve étanche et thermiquement isolante peut comporter une ou plusieurs des caractéristiques suivantes.  According to embodiments, such a sealed and thermally insulating tank may comprise one or more of the following characteristics.
les premier et second panneaux comportent chacun une plaque de contreplaqué interne et une plaque de contreplaqué externe définissant respectivement la face interne et la face externe desdits premier et second panneaux et une couche de mousse polymère isolante prise en sandwich entre lesdites plaques de contreplaqué interne et externe. le bord latéral du premier panneau reposant contre la seconde paroi est pourvu d'une plaque de contreplaqué. the first and second panels each comprise an inner plywood plate and an outer plywood plate defining respectively the inner face and the outer face of said first and second panels and an insulating polymeric foam layer sandwiched between said inner and outer plywood plates; . the side edge of the first panel resting against the second wall is provided with a plywood plate.
la face externe du premier panneau reposant contre la première paroi, le bord latéral du premier panneau reposant contre la seconde paroi et la face externe du second panneau reposant contre la seconde paroi sont collés à la structure porteuse. the outer face of the first panel resting against the first wall, the lateral edge of the first panel resting against the second wall and the outer face of the second panel resting against the second wall are glued to the supporting structure.
le premier et le second panneaux comprennent chacun, sur leur face interne, un organe d'ancrage de la membrane d'étanchéité comprenant une bande de liaison métallique s'étendant selon un axe, parallèle à l'intersection entre la première et la seconde parois , ladite membrane d'étanchéité comportant des plaques métalliques s'étendant de part et d'autre de ladite structure d'angle et une cornière s'étendant entre une bande de liaison métallique du premier panneau et une bande de liaison métallique du second panneau, les plaques métalliques présentant des bords soudés aux bandes de liaison métalliques ou à la cornière, ladite cornière présentant des bords soudés aux bords des plaques métalliques soudés auxdites bandes de liaison métalliques ou aux bandes de liaison métalliques. the first and second panels each comprise, on their inner face, an anchoring member of the sealing membrane comprising a metallic connecting strip extending along an axis, parallel to the intersection between the first and second walls; said sealing membrane having metal plates extending on either side of said corner structure and an angle extending between a metal bonding strip of the first panel and a metal bonding strip of the second panel, the metal plates having edges welded to the metal bonding strips or the angle, said bracket having edges welded to the edges of the metal plates welded to said metal bonding strips or metal bonding strips.
une bande de liaison métallique est retenue dans un évidement formé sur la face interne du premier ou du second panneau et monté dans ledit évidement avec un jeu j de coulissement selon une direction transversale à la direction de ladite bande de liaison métallique de sorte à autoriser un mouvement de la bande de liaison métallique, respectivement dans le plan du premier ou du second panneau. a metal bonding strip is retained in a recess formed on the inner face of the first or second panel and mounted in said recess with a sliding clearance in a direction transverse to the direction of said metal bonding strip so as to allow a movement of the metal bonding strip, respectively in the plane of the first or the second panel.
la barrière d'isolation thermique est une barrière d'isolation thermique secondaire et la membrane d'étanchéité est une membrane d'étanchéité secondaire, la cuve comportant en outre une barrière d'isolation thermique primaire et une membrane d'étanchéité primaire. the thermal insulation barrier is a secondary thermal insulation barrier and the waterproofing membrane is a secondary waterproofing membrane, the tank further comprising a primary thermal insulation barrier and a primary waterproofing membrane.
les premier et second panneaux sont équipés de goujons de fixation de la barrière d'isolation thermique primaire, faisant saillie vers l'intérieur à partir de la face interne desdits premier et second panneaux. the first and second panels are provided with studs for securing the primary thermal insulation barrier, projecting inwardly from the inner face of said first and second panels.
les goujons de fixation de la barrière d'isolation thermique primaire s'étendent dans l'axe de l'une des bandes de liaison métalliques et les bords des plaques métalliques soudés aux bandes de liaison métalliques et/ou à la cornière et les bords de la cornière soudés aux bandes de liaison métalliques et/ou à des bords des plaques métalliques soudés auxdites bandes de liaison métalliques sont pourvus de découpes pour le passage des goujons de fixation de la barrière d'isolation thermique primaire. the fixing studs of the primary thermal insulation barrier extend in the axis of one of the metal bonding strips and the edges of the metal plates welded to the metal bonding strips and / or the angle and the edges of the the angle welded to the metal binding strips and / or at the edges metal plates welded to said metal bonding strips are provided with cutouts for the passage of the fastening studs of the primary thermal insulation barrier.
la barrière d'isolation thermique primaire comporte, à l'intersection entre la première et la seconde parois de la structure porteuse, une structure d'angle comprenant un premier et un second panneaux d'isolation thermique primaire comportant chacun une face externe disposée en vis-à-vis de la membrane d'étanchéité secondaire, une face interne pourvue d'un organe d'ancrage de la membrane d'étanchéité primaire et des bords latéraux, le premier panneau d'isolation thermique primaire présentant un bord latéral reposant contre la membrane d'étanchéité secondaire et le second panneau d'isolation thermique primaire comportant un bord latéral reposant contre la face interne du premier panneau d'isolation thermique primaire,  the primary thermal insulation barrier comprises, at the intersection between the first and the second walls of the supporting structure, an angle structure comprising a first and a second primary thermal insulation panel each having an outer face arranged in a screw with respect to the secondary sealing membrane, an inner face provided with an anchoring member of the primary sealing membrane and lateral edges, the first primary thermal insulation panel having a lateral edge resting against the secondary waterproofing membrane and the second primary thermal insulation panel having a lateral edge resting against the inner face of the first primary thermal insulation panel,
l'angle formé entre la première et la seconde paroi est de 90°.  the angle formed between the first and the second wall is 90 °.
- la première paroi est une paroi horizontale et la seconde paroi est une paroi verticale. - The first wall is a horizontal wall and the second wall is a vertical wall.
Une telle cuve peut faire partie d'une installation de stockage terrestre, par exemple pour stocker du GNL ou être installée dans une structure flottante, côtière ou en eau profonde, notamment un navire méthanier, une unité flottante de stockage et de regazéification (FSRU), une unité flottante de production et de stockage déporté (FPSO) et autres.  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.
Selon un mode de réalisation, un navire pour le transport d'un fluide comporte une double coque et une cuve précitée, dans lequel la double coque forme la structure porteuse externe de la cuve.  According to one embodiment, a vessel for the transport of a fluid comprises a double hull and a said tank, in which the double hull forms the external bearing structure of the tank.
Selon un mode de réalisation, l'invention fournit aussi un procédé de chargement ou déchargement d'un tel navire, dans lequel on achemine un fluide à travers des canalisations isolées depuis ou vers une installation de stockage flottante ou terrestre vers ou depuis la cuve du navire.  According to one embodiment, the invention also provides a method for loading or unloading such a vessel, in which a fluid is conveyed through isolated pipes from or to a floating or land storage facility to or from the tank of the vessel. ship.
Selon un mode de réalisation, l'invention fournit aussi un système de transfert pour un fluide, le système comportant le navire précité, des canalisations isolées agencées de manière à relier la cuve installée dans la coque du navire à une installation de stockage flottante ou terrestre et une pompe pour entraîner un flux de fluide à travers les canalisations isolées depuis ou vers l'installation de stockage flottante ou terrestre vers ou depuis la cuve du navire. According to one embodiment, the invention also provides a transfer system for a fluid, the system comprising the abovementioned vessel, insulated pipes arranged to connect the vessel installed in the hull of the vessel to a floating or ground storage facility. and a pump to drive a fluid flow through the isolated pipelines from or to the floating or land storage facility to or from the vessel vessel.
Brève description des figures  Brief description of the figures
L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement au cours de la description suivante de plusieurs modes de réalisation particuliers de l'invention, donnés uniquement à titre illustratif et non limitatif, en référence aux dessins annexés.  The invention will be better understood, and other objects, details, characteristics and advantages thereof will appear more clearly in the course of the following description of several particular embodiments of the invention, given solely for illustrative and non-limiting purposes. with reference to the accompanying drawings.
• La figure 1 est une vue, en coupe, d'une cuve étanche et thermiquement isolante comportant deux membranes d'étanchéité et deux barrières d'isolation thermique, au niveau d'une zone d'angle. • Figure 1 is a sectional view of a sealed and thermally insulating tank having two sealing membranes and two thermal insulation barriers, at a corner area.
• La figure 2 est une vue en coupe illustrant une barrière d'isolation thermique secondaire au niveau d'une zone d'angle.  • Figure 2 is a sectional view illustrating a secondary thermal insulation barrier at a corner area.
• La figure 3 est une vue détaillée de la zone III de la figure 2.  FIG. 3 is a detailed view of zone III of FIG.
• La figure 4 est une vue en perspective d'une structure d'angle de barrière d'isolation thermique secondaire et d'une cornière destinée à être rapportée contre ladite structure d'angle.  FIG. 4 is a perspective view of a secondary thermal insulation barrier angle structure and an angle bracket to be fitted against said corner structure.
• La figure 5 est une vue en perspective, partiellement arrachée d'une barrière d'étanchéité secondaire et d'une barrière d'isolation thermique secondaire.  • Figure 5 is a perspective view, partially broken away of a secondary sealing barrier and a secondary thermal insulation barrier.
• Les figures 6a, 6b et 6c sont respectivement des vues détaillées des zones Via, Vlb et Vie de la figure 5.  FIGS. 6a, 6b and 6c are respectively detailed views of the Via, Vlb and Vie zones of FIG. 5.
• La figure 7 est une vue en perspective, partiellement arrachée d'une cuve présentant une membrane d'étanchéité primaire, une barrière d'isolation thermique primaire, une membrane d'étanchéité secondaire et une barrière d'isolation thermique secondaire.  FIG. 7 is a perspective view, partly broken away, of a tank having a primary waterproofing membrane, a primary thermal insulation barrier, a secondary waterproofing membrane and a secondary thermal insulation barrier.
· La figure 8a, 8b et 8c sont respectivement des vues détaillées des zones Villa, Vlllb et Ville de la figure 7. Figure 8a, 8b and 8c are respectively detailed views of the Villa, Vlllb and City areas of Figure 7.
• La figure 9 est une représentation schématique écorchée d'une cuve de navire méthanier et d'un terminal de chargement/déchargement de cette cuve. Description détaillée de modes de réalisation FIG. 9 is a cutaway schematic representation of a vessel of a LNG carrier and a loading / unloading terminal of this vessel. Detailed description of embodiments
Par convention, les termes «externe » et « interne » sont utilisés pour définir la position relative d'un élément par rapport à un autre, par référence à l'intérieur et à l'extérieur de la cuve. En se reportant à la figure 1 , on voit une structure de cuve étanche et thermiquement isolante comportant, depuis l'extérieur vers l'intérieur de la cuve, une structure porteuse 1 , une barrière thermiquement isolante secondaire 2, une membrane d'étanchéité secondaire 3, une barrière thermiquement isolante primaire 4 et une membrane d'étanchéité primaire 5 destinée à être en contact avec le fluide cryogénique contenu dans la cuve. By convention, the terms "external" and "internal" are used to define the relative position of one element relative to another, with reference to the interior and exterior of the vessel. Referring to Figure 1, there is shown a sealed and thermally insulating vessel structure having, from the outside to the inside of the vessel, a carrier structure 1, a secondary heat-insulating barrier 2, a secondary sealing membrane 3, a primary thermally insulating barrier 4 and a primary sealing membrane 5 intended to be in contact with the cryogenic fluid contained in the tank.
La structure porteuse 1 peut notamment être une tôle métallique autoporteuse ou plus généralement tout type de cloison rigide présentant des propriétés mécaniques appropriées. La structure porteuse 1 peut notamment être formée par la coque ou la double coque d'un navire. La structure porteuse 1 comporte une pluralité de parois définissant la forme générale de la cuve.  The supporting structure 1 can in particular be a self-supporting metal sheet or more generally any type of rigid partition having suitable mechanical properties. The supporting structure 1 may in particular be formed by the hull or the double hull of a ship. The supporting structure 1 comprises a plurality of walls defining the general shape of the tank.
Au niveau de la zone d'angle représentée sur la figure 1 , la structure porteuse 1 comporte une première paroi 6 formant le fond de la cuve et une seconde paroi 7 formant une cloison verticale de la cuve.  At the angle zone shown in Figure 1, the carrier structure 1 comprises a first wall 6 forming the bottom of the tank and a second wall 7 forming a vertical wall of the vessel.
La barrière d'isolation thermique secondaire 2 comporte une pluralité de blocs d'isolation 8, 9 disposés sur la surface des parois 6, 7 de la structure porteuse 1 et ancrés sur ladite structure porteuse 1 au moyen de boudins de résine, non illustrés, et/ou de goujons soudés sur la structure porteuse 1 , non illustrés.  The secondary thermal insulation barrier 2 comprises a plurality of insulation blocks 8, 9 disposed on the surface of the walls 6, 7 of the supporting structure 1 and anchored on said supporting structure 1 by means of resin strands, not illustrated, and / or welded studs on the carrier structure 1, not shown.
Sur les figures 1 et 2, l'on observe que les blocs d'isolation 8, 9 comportent une couche de mousse polymère isolante 10 prise en sandwich entre une plaque rigide interne 1 1 et une plaque rigide externe 12. Les plaques rigides interne 1 1 et externe 12 sont, par exemple, des plaques de bois contreplaqué collées sur ladite couche de mousse 10. La mousse polymère isolante peut notamment être une mousse de polyuréthanne, éventuellement de haute densité et éventuellement renforcée de fibres de verre.  In FIGS. 1 and 2, it can be seen that the insulation blocks 8, 9 comprise a layer of insulating polymer foam 10 sandwiched between an internal rigid plate 11 and an external rigid plate 12. The internal rigid plates 1 1 and outer 12 are, for example, plywood boards glued to said foam layer 10. The insulating polymer foam may in particular be a polyurethane foam, possibly high density and optionally reinforced with glass fibers.
Deux blocs d'isolation 8, 9 sont hachurés sur la représentation en perspective de la figure 5. Les blocs d'isolation 8, 9 présentent sensiblement une forme de parallélépipède rectangle. Les blocs d'isolation 8, 9 présentent selon leur deux axes de symétrie une bande de liaison métallique 14, qui est mise en place dans un évidement et qui y est fixée par des vis, des rivets, des agrafes ou de la colle. Dans la zone de croisement des bandes de liaison métalliques 14, on a ménagé un goujon 15 faisant saillie vers l'intérieur et permettant la fixation de la barrière d'isolation thermique primaire 4. Two insulation blocks 8, 9 are hatched in the perspective view of FIG. 5. The insulation blocks 8, 9 have a substantially rectangular parallelepiped shape. The insulation blocks 8, 9 have, according to their two axes of symmetry, a metal connecting strip 14, which is placed in a recess and is fixed by screws, rivets, staples or glue. In the crossing zone of the metal connecting strips 14, a stud 15 protruding inwards and allowing the fixing of the primary thermal insulation barrier 4 has been formed.
La membrane d'étanchéité secondaire 3 est obtenue par assemblage d'une pluralité de plaques métalliques 16a, 16b soudées bord à bord et présentant une forme sensiblement rectangulaire. En dehors de la zone d'angle, les plaques métalliques 16a comportent, selon chacun des deux axes de symétrie de ce rectangle, une ondulation 17 formant un relief en direction de la structure porteuse 1. Les plaques métalliques 16a sont ici disposées de manière décalée par rapport aux blocs d'isolation 8, 9 de telle sorte que chacune desdites plaques métalliques 16a s'étende à cheval sur quatre blocs d'isolation 8, 9 adjacents. En outre, les ondulations 17 forment un relief en direction de la structure porteuse 1 et sont logées dans des interstices de la barrière d'isolation thermique secondaire 2 ménagés entre deux blocs d'isolation 8, 9 adjacents. Les plaques métalliques 16a adjacentes sont soudées entre elles à recouvrement. Le maintien de plaques métalliques 16a sur les blocs d'isolation 8, 9 est réalisé au moyen des bandes de liaison métalliques 14 sur lesquelles on soude au moins deux bords desdites plaques métalliques 16a.  The secondary sealing membrane 3 is obtained by assembling a plurality of metal plates 16a, 16b welded edge to edge and having a substantially rectangular shape. Outside the corner zone, the metal plates 16a comprise, in each of the two axes of symmetry of this rectangle, a corrugation 17 forming a relief in the direction of the supporting structure 1. The metal plates 16a are here arranged in a staggered manner. relative to the insulation blocks 8, 9 such that each of said metal plates 16a straddles four adjacent insulation blocks 8, 9. In addition, the corrugations 17 form a relief in the direction of the supporting structure 1 and are housed in gaps of the secondary thermal insulation barrier 2 formed between two adjacent insulation blocks 8, 9. The adjacent metal plates 16a are welded together. The maintenance of metal plates 16a on the insulating blocks 8, 9 is achieved by means of metal bonding strips 14 on which at least two edges of said metal plates 16a are welded.
En bordure de paroi, la membrane d'étanchéité secondaire 3 comporte des plaques métalliques 16b assurant la jonction de la membrane d'étanchéité secondaire 3 à la structure d'angle et dont la largeur peut être différente de celle des autres plaques métalliques 16a de sorte à s'adapter aux dimensions de la structure d'angle. Les plaques métalliques 16b sont également pourvues de deux ondulations 17, perpendiculaires formant un relief en direction de la structure porteuse 1 et s'étendant respectivement dans un interstice 13 entre les blocs d'isolation 8, 9 et des panneaux 18, 19 formant la structure d'angle de la barrière d'isolation thermique secondaire 2 et dans un interstice entre deux blocs d'isolation 8, 9 adjacents.  At the edge of the wall, the secondary waterproofing membrane 3 comprises metal plates 16b ensuring the junction of the secondary waterproofing membrane 3 to the corner structure and whose width may be different from that of the other metal plates 16a so to adapt to the dimensions of the corner structure. The metal plates 16b are also provided with two perpendicular corrugations 17 forming a relief in the direction of the supporting structure 1 and extending respectively in a gap 13 between the insulation blocks 8, 9 and panels 18, 19 forming the structure. angle of the secondary thermal insulation barrier 2 and in a gap between two adjacent insulation blocks 8, 9.
Les plaques métalliques 16a, 16b de la membrane d'étanchéité secondaire 3 sont, par exemple, réalisées en Invar ® : un alliage de fer et de nickel dont le coefficient de dilatation est typiquement compris entre 1 ,5.10"6 et 2.10"6 K"1. En se reportant aux figures 1 , 2 et 4, on observe la structure d'angle de la barrière d'isolation thermique secondaire 2. Ladite structure d'angle comporte des panneaux calorifuges 18, 19, respectivement horizontaux et verticaux, de forme parallélépipédique rectangle. De manière similaire aux blocs d'isolation 8, 9 décrits précédemment, les panneaux 18, 19 de la structure d'angle comportent une couche de mousse polymère isolante prise en sandwich entre deux plaques rigides interne et externe, en bois contreplaqué par exemple, collées sur ladite couche de mousse. The metal plates 16a, 16b of the secondary sealing membrane 3 are, for example, made of Invar ®: an alloy of iron and nickel whose expansion coefficient is typically between 1, 5.10 "6 and 2.10 " 6 K "1 . With reference to FIGS. 1, 2 and 4, the angle structure of the secondary thermal insulation barrier 2 is observed. Said angle structure comprises horizontal and vertical heat-insulating panels 18, 19 of rectangular parallelepipedal shape. . Similar to the insulation blocks 8, 9 described above, the panels 18, 19 of the corner structure comprise an insulating polymer foam layer sandwiched between two rigid inner and outer plywood plates, for example, glued together. on said foam layer.
Lors de l'assemblage de la cuve, un panneau horizontal 18 est positionné horizontalement contre la structure porteuse 1 de telle sorte que sa face externe repose contre la première paroi 6 et qu'un de ses bords latéraux 20 repose contre la seconde paroi 7. L'angle formé entre la face externe d'un panneau horizontal 18 et son bord latéral 20 est donc égal à l'angle formé à l'intersection entre les parois 6, 7, soit 90° dans le mode de réalisation représenté. Un panneau horizontal 18 est fixé à la structure porteuse 1 , par exemple en collant la face externe dudit panneau 18 et, optionnellement son bord latéral 20 respectivement contre la paroi horizontale 6 et la paroi verticale 7.  During assembly of the tank, a horizontal panel 18 is positioned horizontally against the supporting structure 1 so that its outer face rests against the first wall 6 and one of its lateral edges 20 rests against the second wall 7. The angle formed between the outer face of a horizontal panel 18 and its side edge 20 is equal to the angle formed at the intersection between the walls 6, 7, or 90 ° in the embodiment shown. A horizontal panel 18 is fixed to the supporting structure 1, for example by gluing the outer face of said panel 18 and, optionally, its lateral edge 20 respectively against the horizontal wall 6 and the vertical wall 7.
Dans le mode de réalisation représenté, le bord latéral 20 d'un panneau horizontal 18 reposant contre la paroi verticale 7 est pourvu d'une plaque de contreplaqué. Une telle plaque de contreplaqué permet de faciliter la mise en place du panneau 18 et/ou permet d'améliorer l'efficacité du collage du bord latéral 20 du panneau 18 contre la paroi verticale 7 de la structure porteuse 1 lorsque ledit bord latéral 20 est collé à la structure porteuse 1.  In the embodiment shown, the side edge 20 of a horizontal panel 18 resting against the vertical wall 7 is provided with a plywood plate. Such a plywood plate makes it easier to place the panel 18 and / or improves the effectiveness of the bonding of the lateral edge 20 of the panel 18 against the vertical wall 7 of the supporting structure 1 when said lateral edge 20 is glued to the supporting structure 1.
Par la suite, un panneau vertical 19 est positionné contre la structure porteuse 1 de telle sorte que sa face externe repose contre la paroi 7 et que son bord latéral inférieur 21 repose contre la face interne du panneau vertical 18. L'angle formé entre le bord latéral inférieur 21 du panneau vertical 19 et sa face externe est, par conséquent, égal à l'angle formé entre la paroi 7 de la structure porteuse 1 et la face interne du premier panneau 18, soit 90° dans le mode de réalisation représenté. Le second panneau 19 est fixé à la structure porteuse 1 par collage de sa face externe contre la paroi 7.  Subsequently, a vertical panel 19 is positioned against the carrier structure 1 so that its outer face rests against the wall 7 and its lower side edge 21 rests against the inner face of the vertical panel 18. The angle formed between the lower side edge 21 of the vertical panel 19 and its outer face is, therefore, equal to the angle formed between the wall 7 of the carrier structure 1 and the inner face of the first panel 18, or 90 ° in the embodiment shown . The second panel 19 is fixed to the supporting structure 1 by bonding its outer face against the wall 7.
Par ailleurs, les panneaux 18 et 19 présentent sur leur face interne des bandes de liaison métalliques 22. Ces bandes de liaison métalliques 22 s'étendent selon un axe parallèle à l'arête formée à l'intersection entre les parois 6, 7. Les bandes de liaison métalliques 22 servent à l'ancrage des plaques métalliques 16b assurant la jonction de la membrane d'étanchéité secondaire 3 à la structure d'angle. Furthermore, the panels 18 and 19 have on their inner face metal connecting strips 22. These metal connecting strips 22 extend along an axis parallel to the edge formed at the intersection between the walls 6, 7. metal connecting strips 22 are used for anchoring the metal plates 16b ensuring the junction of the secondary sealing membrane 3 to the corner structure.
Dans un mode de réalisation, les bandes de liaison métalliques 22 sont retenues dans un évidement 27, illustré sur le figure 3 qui est formé dans la plaque rigide interne des panneaux 18, 19. Selon un mode de réalisation, les bandes de liaison métalliques 22 sont fixées sur la plaque rigide interne des panneaux 18, 19 au moyen d'organes de fixation, non illustrés, passant au travers d'orifices ménagés dans les bandes de liaison métalliques 22. Les organes de fixations sont par exemple des rivets ou des vis.  In one embodiment, the metal connecting strips 22 are retained in a recess 27, illustrated in FIG. 3, which is formed in the internal rigid plate of the panels 18, 19. According to one embodiment, the metal connecting strips 22 are fixed on the inner rigid plate of the panels 18, 19 by means of fasteners, not shown, passing through orifices in the metal connecting strips 22. The fastening members are for example rivets or screws .
Dans un mode de réalisation, les bandes de liaison métalliques 22 sont montées avec un jeu de coulissement j selon une direction transversale à la direction desdites bandes de liaison métalliques 22. Le jeu de coulissement j, illustré sur la figure 3, est de l'ordre de 5mm. Un tel jeu de coulissement autorise un mouvement de la bande de liaison métallique 22 dans le plan du panneau 18, 19, en direction opposée à la structure porteuse 1 , lors de la mise à froid de la cuve, sous l'effet des contractions thermiques de la membrane d'étanchéité secondaire 3. Ainsi, le jeu de coulissement des bandes de liaison métalliques 22 permet de limiter les contraintes résultant de la contraction thermique. Dans un tel mode de réalisation, les orifices ménagés dans les bandes de liaison métalliques 22 pour le passage des organes de fixation présentent une forme oblongue dont la plus grande longueur s'étend selon une direction transversale à la direction des bandes de liaison métalliques 22 afin de permettre un coulissement dans la direction précitée.  In one embodiment, the metal connecting strips 22 are mounted with a sliding clearance j in a direction transverse to the direction of said metal connecting strips 22. The sliding clearance j, illustrated in FIG. 3, is of order of 5mm. Such a sliding clearance allows a movement of the metal connecting strip 22 in the plane of the panel 18, 19, in the direction opposite to the supporting structure 1, during the cold setting of the tank, under the effect of thermal contractions of the secondary sealing membrane 3. Thus, the sliding clearance of the metal bonding strips 22 makes it possible to limit the stresses resulting from the thermal contraction. In such an embodiment, the orifices formed in the metal connecting strips 22 for the passage of the fasteners have an oblong shape whose greatest length extends in a direction transverse to the direction of the metal bonding strips 22 so to allow sliding in the aforementioned direction.
De part et d'autre de la structure d'angle, les plaques métalliques 16b, en bordure de paroi, présentent des bords qui sont soudés le long desdites bandes de liaison métalliques 22, les autres bords desdits plaques métalliques 16b étant soudés à recouvrement avec les bords des plaques métalliques 16a, 16b adjacentes.  On both sides of the corner structure, the metal plates 16b, at the edge of the wall, have edges which are welded along the said metal connecting strips 22, the other edges of the said metal plates 16b being welded with overlap with the edges of the adjacent metal plates 16a, 16b.
Par ailleurs, une cornière 23, présentant une section en L comportant deux ailes perpendiculaires, s'étend entre une bande de liaison métallique 22 fixée à la face interne d'un panneau horizontal 18 et une bande de liaison métallique 22 fixée à la face interne d'un panneau vertical 19 de façon à assurer l'étanchéité de la membrane d'étanchéité secondaire 3 au niveau de la zone d'angle. La cornière 23 est, par exemple, réalisée en Invar ®. La cornière 23 est soudée par recouvrement sur les bords des plaques métalliques 16b qui sont soudés aux bandes de liaison métalliques 22. Furthermore, an angle iron 23, having an L-shaped section comprising two perpendicular flanges, extends between a metal bonding strip 22 fixed to the internal face of a horizontal panel 18 and a metal bonding strip 22 fixed to the internal face. of a vertical panel 19 so as to seal the secondary sealing membrane 3 at the corner area. The angle 23 is, for example, made in Invar ®. The angle 23 is welded by overlap on the edges of the metal plates 16b which are welded to the metal bonding strips 22.
De manière alternative, il est également possible de souder la cornière 23 sur les bandes de liaison métalliques 22 puis de souder à recouvrement les bords adjacents des plaques métalliques 16b sur la cornière 23.  Alternatively, it is also possible to weld the angle iron 23 on the metal bonding strips 22 and then to weld the adjacent edges of the metal plates 16b on the angle iron 23 overlapping.
Les panneaux 18, 19 comportent, par ailleurs, des goujons 24 faisant saillie vers l'intérieur de la cuve et permettant de fixer la barrière d'isolation thermique primaire 4 sur la barrière d'isolation thermique secondaire 2. La base des goujons est soudée sur des platines métalliques 25, fixées auxdits panneaux 18, 19, par des vis, des rivets, des agrafes ou de la colle.  The panels 18, 19 furthermore comprise studs 24 projecting towards the inside of the tank and making it possible to fix the primary thermal insulation barrier 4 on the secondary thermal insulation barrier 2. The base of the studs is welded on metal plates 25, fixed to said panels 18, 19, by screws, rivets, staples or glue.
Sur la figure 4, on observe que les bandes de liaison métalliques 22 sont formées de segments juxtaposés discontinus et les platines métalliques 25 supportant les goujons 24 sont agencées, dans l'axe desdites bandes de liaison métalliques 22, entre deux de leurs segments adjacents.  In Figure 4, it is observed that the metal bonding strips 22 are formed of discontinuous juxtaposed segments and the metal plates 25 supporting the studs 24 are arranged in the axis of said metal bonding strips 22 between two of their adjacent segments.
Comme représenté de manière détaillée sur les figures 6a et 6b, les bords de la cornière 23 et les bords des plaques métalliques 16b, s'étendant de part et d'autre de la structure d'angle, sont pourvues de découpes 26 permettant le passage des goujons 24. Ainsi, il n'est pas nécessaire de perforer la cornière 23 ou les plaques métalliques 16b pour laisser passer le goujon 24 en direction de la barrière d'isolation thermique primaire 4. Afin d'assurer une continuité de l'étanchéité, la cornière 23 et les plaques métalliques 16b sont, au niveau desdites découpes 26, soudées sur les platines métalliques 25.  As shown in detail in Figures 6a and 6b, the edges of the angle 23 and the edges of the metal plates 16b, extending on either side of the corner structure, are provided with cutouts 26 allowing the passage Thus, it is not necessary to perforate the angle iron 23 or the metal plates 16b to allow the bolt 24 to pass in the direction of the primary thermal insulation barrier 4. In order to ensure a continuity of the watertightness , the angle 23 and the metal plates 16b are, at the level of said cutouts 26, welded to the metal plates 25.
En relation avec la figure 4, l'on observe également que les panneaux 18 et 19 comportent une longueur I et une épaisseur e identiques tandis que la largeur L1 du panneau vertical 18 est plus importante que la largeur L2 du panneau horizontal 19. Pour réaliser une structure d'angle dont les dimensions horizontales et verticales sont égales, la largeur L1 du panneau horizontal 18 est égale à la somme de la largeur L2 du panneau vertical 19 et de l'épaisseur e desdits panneaux 18, 19.  In relation with FIG. 4, it is also observed that the panels 18 and 19 have a length I and a thickness e identical while the width L1 of the vertical panel 18 is greater than the width L2 of the horizontal panel 19. To achieve an angle structure whose horizontal and vertical dimensions are equal, the width L1 of the horizontal panel 18 is equal to the sum of the width L2 of the vertical panel 19 and the thickness e of said panels 18, 19.
Par ailleurs, en relation avec la figure 6c, on observe qu'une pluralité de panneaux horizontaux 18 et de panneaux verticaux 19 peut être disposée le long de l'intersection entre la première et la seconde paroi 6, 7. Dans ce cas, dans le mode de réalisation représenté, un interstice 28 est ménagé entre les panneaux verticaux 18 et horizontaux 19 adjacents et une pièce métallique de jonction, non représentée, permet d'assurer l'étanchéité entre deux cornières 23 adjacentes. Une telle pièce métallique de jonction présente sensiblement une forme en L et comporte une ondulation s'étendant le long de l'interstice 28, dans le prolongement d'une ondulation des plaques métalliques 16b adjacentes, et faisant saillie à l'intérieur dudit interstice 28. Ladite pièce de jonction est soudée aux niveaux de deux extrémités de l'ondulation aux bords des plaques métalliques 16b et présentent, de part et d'autre de ladite ondulation, des bords plans permettant un soudage de ladite pièce métallique de jonction sur les cornières 23 adjacentes. Furthermore, with reference to FIG. 6c, it is observed that a plurality of horizontal panels 18 and vertical panels 19 can be arranged along the intersection between the first and the second wall 6, 7. In this case, in the embodiment shown, a gap 28 is formed between the vertical panels 18 and adjacent horizontal 19 and a metal joining piece, not shown, provides sealing between two brackets 23 adjacent. Such a metal joining piece has substantially an L shape and comprises a corrugation extending along the gap 28, in the extension of a corrugation of the adjacent metal plates 16b and projecting inside said gap 28 Said connecting piece is welded at the two ends of the corrugation to the edges of the metal plates 16b and have, on either side of said corrugation, flat edges allowing welding of said metal joining piece on the angles 23 adjacent.
Les figures 7, 8a, 8b et 8c illustrent plus particulièrement l'agencement de la barrière d'isolation thermique primaire 4 et de la membrane d'étanchéité primaire 5.  FIGS. 7, 8a, 8b and 8c illustrate more particularly the arrangement of the primary thermal insulation barrier 4 and the primary waterproofing membrane 5.
La barrière d'isolation thermique primaire 4 comprend une pluralité de panneaux calorifuges 29a, 29b, 29c de forme sensiblement parallélépipédique rectangle recouvrant la membrane d'étanchéité secondaire 3. Les panneaux calorifuges 29a, 29b, 29c comportent une couche de mousse polymère isolante prise en sandwich entre deux plaques rigides interne et externe, en bois contreplaqué par exemple, collées sur ladite couche de mousse.  The primary thermal insulation barrier 4 comprises a plurality of heat-insulating panels 29a, 29b, 29c of substantially rectangular parallelepipedal shape covering the secondary sealing membrane 3. The heat-insulating panels 29a, 29b, 29c comprise a layer of insulating polymer foam taken into consideration. sandwich between two rigid inner and outer plates, of plywood for example, glued on said layer of foam.
Par ailleurs, les panneaux calorifuges 29a, 29b, 29c de la barrière d'isolation thermique primaire 4 comportent également sur leur face interne des bandes de liaison métalliques 33 permettant un ancrage, par soudage, de la barrière d'étanchéité primaire 5.  Furthermore, the heat-insulating panels 29a, 29b, 29c of the primary thermal insulation barrier 4 also have on their inner face metal bonding strips 33 for anchoring, by welding, the primary sealing barrier 5.
La membrane d'étanchéité primaire 5 est obtenue par assemblage d'une pluralité de plaques métalliques 34, soudées les unes aux autres le long de leurs bords. Dans le mode de réalisation représenté, les plaques métalliques 34 comportent deux séries d'ondulations s'étendant selon des directions perpendiculaires. Les ondulations de la membrane d'étanchéité primaire 5 sont saillantes du côté de la face interne des plaques métalliques 34. Les plaques métalliques 34 sont, par exemple, réalisées en tôle d'acier inoxydable ou d'aluminium, mise en forme par pliage ou par emboutissage.  The primary waterproofing membrane 5 is obtained by assembling a plurality of metal plates 34, welded to each other along their edges. In the embodiment shown, the metal plates 34 comprise two series of corrugations extending in perpendicular directions. The corrugations of the primary waterproofing membrane 5 protrude from the side of the inner face of the metal plates 34. The metal plates 34 are, for example, made of stainless steel sheet or aluminum, shaped by folding or by stamping.
Les plaques métalliques 34 sont décalées par rapport aux panneaux calorifuges 29a, 29b, 29c, chacune desdites plaques métalliques s'étendant à cheval sur quatre panneaux calorifuges adjacent 29a, 29b, 29c. En relation avec les figures 1 et 8a, nous décrirons maintenant l'agencement des panneaux calorifuges 29a, 29b respectivement horizontaux et verticaux de la barrière d'isolation thermique primaire 4, au niveau de la zone d'angle. Un panneau horizontal 29a présente une face externe reposant contre la membrane d'étanchéité secondaire 3 et un bord latéral 35 reposant contre l'aile verticale de la cornière 23. Un panneau vertical 29b présente une face externe reposant contre la membrane d'étanchéité secondaire 3 alors qu'un 36 de ses bords latéraux repose contre la surface interne du panneau horizontal 29a. The metal plates 34 are offset from the heat-insulating panels 29a, 29b, 29c, each of said metal plates extending over four adjacent heat-insulating panels 29a, 29b, 29c. In connection with Figures 1 and 8a, we will now describe the arrangement of heat insulating panels 29a, 29b respectively horizontal and vertical of the primary thermal insulation barrier 4 at the corner area. A horizontal panel 29a has an outer face resting against the secondary sealing membrane 3 and a lateral edge 35 resting against the vertical flange of the angle plate 23. A vertical panel 29b has an outer face resting against the secondary sealing membrane 3 while a 36 of its lateral edges rests against the inner surface of the horizontal panel 29a.
La fixation des panneaux 29a, 29b aux goujons 24 fixés à la membrane d'isolation thermique secondaire 2 est représenté sur les figures 8a et 8b.  The fixing of the panels 29a, 29b to the studs 24 fixed to the secondary thermal insulation membrane 2 is shown in FIGS. 8a and 8b.
Sur la figure 8a, les panneaux verticaux 29a et horizontaux 29b présentent au niveau de leurs coins, un décrochement de la mousse isolante et de la plaque rigide interne par rapport à la plaque rigide externe. La plaque rigide externe présente en outre une découpe permettant le passage du goujon 24. Ainsi, un écrou, non représenté, monté sur le goujon fileté 24 est apte à retenir la plaque rigide externe à la barrière d'isolation thermique secondaire 2.  In Figure 8a, the vertical panels 29a and horizontal 29b have at their corners, a recess of the insulating foam and the inner rigid plate relative to the outer rigid plate. The outer rigid plate furthermore has a cutout allowing the stud 24 to pass therethrough. Thus, a nut, not shown, mounted on the threaded stud 24 is able to retain the rigid plate external to the secondary thermal insulation barrier 2.
Sur la figure 8b, les panneaux verticaux 29a et horizontaux 29b présentent des orifices 39 permettant le passage de goujons 24. L'orifice 39 comporte un épaulement, non représentée, permettant de servir d'appui à un écrou vissé sur un goujon filetée 24, introduit au travers de l'orifice 39. Ainsi, un écrou vissé sur le goujon fileté 24 vient en butée contre ledit épaulement de manière à assurer une fixation des panneaux 29a, 29b.  In FIG. 8b, the vertical panels 29a and horizontal panels 29b have orifices 39 allowing the passage of studs 24. The orifice 39 has a shoulder, not shown, serving to support a nut screwed onto a threaded stud 24, introduced through the orifice 39. Thus, a nut screwed on the stud bolt 24 abuts against said shoulder so as to ensure a fixing of the panels 29a, 29b.
Par ailleurs, la membrane d'étanchéité primaire 5 comporte au niveau de la zone d'angle une cornière métallique 37, ondulée, illustrée sur la figure 9c. La cornière ondulée 37 présente des ondulations 38, orthogonales aux parois 6, 7, s'étendant dans le prolongement d'un des séries d'ondulations des plaques métalliques 34. Les bords de la cornière ondulée 37 sont soudés à recouvrement avec les bords adjacents des plaques métalliques 34 et avec les bords des cornières ondulées 37 adjacentes. Au moins deux des bords de la cornière ondulée sont ancrés sur des bandes de liaison métalliques 33 des panneaux 29a, 29b.  Furthermore, the primary waterproofing membrane 5 comprises at the level of the corner zone a corrugated metal angle 37, illustrated in FIG. 9c. The corrugated angle 37 has corrugations 38, orthogonal to the walls 6, 7 extending in the extension of one of the series of corrugations of the metal plates 34. The edges of the corrugated angle 37 are welded overlap with the adjacent edges metal plates 34 and with the edges of corrugated brackets 37 adjacent. At least two of the edges of the corrugated angle are anchored on metal connecting strips 33 of the panels 29a, 29b.
En référence à la figure 9, une vue écorchée d'un navire méthanier 70 montre une cuve étanche et isolée 71 de forme générale prismatique montée dans la double coque 72 du navire. La paroi de la cuve 71 comporte une barrière étanche primaire destinée à être en contact avec le GNL contenu dans la cuve, une barrière étanche secondaire agencée entre la barrière étanche primaire et la double coque 72 du navire, et deux barrières isolante agencées respectivement entre la barrière étanche primaire et la barrière étanche secondaire et entre la barrière étanche secondaire et la double coque 72. Referring to Figure 9, a cutaway view of a LNG tank 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 has a sealed barrier primary material intended to be in contact with the LNG contained in the tank, a secondary watertight barrier arranged between the primary waterproof barrier and the double hull 72 of the ship, and two insulating barriers arranged respectively between the primary watertight barrier and the secondary watertight barrier and between the secondary watertight barrier and the double hull 72.
De manière connue en soi, des canalisations de chargement/déchargement 73 disposées sur le pont supérieur du navire peuvent être raccordées, au moyen de connecteurs appropriées, à un terminal maritime ou portuaire pour transférer une cargaison de GNL depuis ou vers la cuve 71.  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 marine or port terminal to transfer a cargo of LNG from or to the tank 71.
La figure 9 représente un exemple de terminal maritime comportant un poste de chargement et de déchargement 75, une conduite sous-marine 76 et une installation à terre 77. Le poste de chargement et de déchargement 75 est une installation fixe off-shore comportant un bras mobile 74 et une tour 78 qui supporte le bras mobile 74. Le bras mobile 74 porte un faisceau de tuyaux flexibles isolés 79 pouvant se connecter aux canalisations de chargement/déchargement 73. Le bras mobile 74 orientable s'adapte à tous les gabarits de méthaniers. Une conduite de liaison non représentée s'étend à l'intérieur de la tour 78. Le poste de chargement et de déchargement 75 permet le chargement et le déchargement du méthanier 70 depuis ou vers l'installation à terre 77. Celle-ci comporte des cuves de stockage de gaz liquéfié 80 et des conduites de liaison 81 reliées par la conduite sous-marine 76 au poste de chargement ou de déchargement 75. La conduite sous-marine 76 permet le transfert du gaz liquéfié entre le poste de chargement ou de déchargement 75 et l'installation à terre 77 sur une grande distance, par exemple 5 km, ce qui permet de garder le navire méthanier 70 à grande distance de la côte pendant les opérations de chargement et de déchargement.  FIG. 9 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 a fixed off-shore installation comprising an arm mobile 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 of 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. liquefied gas storage tanks 80 and connecting lines 81 connected by the underwater line 76 to the loading or unloading station 75. 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.
Pour engendrer la pression nécessaire au transfert du gaz liquéfié, on met en œuvre des pompes embarquées dans le navire 70 et/ou des pompes équipant l'installation à terre 77 et/ou des pompes équipant le poste de chargement et de déchargement 75.  In order to generate the pressure necessary for the transfer of the liquefied gas, 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.
Bien que l'invention ait été décrite en liaison avec plusieurs modes de réalisation particuliers, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci entrent dans le cadre de l'invention. On notera, en particulier, que si l'invention est décrite en relation avec un mode de réalisation dans laquelle la cuve comporte deux niveaux d'étanchéité et d'isolation thermique, elle n'y est aucunement limitée et s'applique également aux cuves étanches ne comportant qu'un seul niveau d'étanchéité et d'isolation thermique. Although the invention has been described in connection with several particular embodiments, it is obvious that it is not limited thereto and that it comprises all the technical equivalents of the means described and their combinations if they are within the scope of the invention. It will be noted, in particular, that if the invention is described in relation to an embodiment in which the tank has two levels of sealing and thermal insulation, it is in no way limited and also applies to the tanks sealed with only one level of sealing and thermal insulation.
L'usage du verbe « comporter », « comprendre » ou « inclure » et de ses formes conjuguées n'exclut pas la présence d'autres éléments ou d'autres étapes que ceux énoncés dans une revendication. L'usage de l'article indéfini « un » ou « une » pour un élément ou une étape n'exclut pas, sauf mention contraire, la présence d'une pluralité de tels éléments ou étapes.  The use of the verb "to include", "to understand" or "to include" and its conjugated forms does not exclude the presence of other elements or steps other than those set out in a claim. The use of the indefinite article "a" or "an" for an element or a step does not exclude, unless otherwise stated, the presence of a plurality of such elements or steps.
Dans les revendications, tout signe de référence entre parenthèses ne saurait être interprété comme une limitation de la revendication.  In the claims, any reference sign in parentheses can not be interpreted as a limitation of the claim.

Claims

REVENDICATIONS
Cuve étanche et thermiquement isolante de stockage d'un fluide, ladite cuve étanche comportant une structure porteuse externe (1 ), une barrière d'isolation thermique (2) retenue sur la structure porteuse (1 ) et une membrane d'étanchéité (3) comportant des ondulations (17) s'étendant selon deux directions perpendiculaires et supportée par la barrière d'isolation thermique (2), la barrière d'isolation thermique (2) comportant une structure d'angle disposée à une intersection entre une première et une seconde parois (6, 7) de la structure porteuse (1 ), ladite structure d'angle comportant un premier et un second panneaux (18, 19) calorifuges présentant chacun une face externe disposée en vis-à-vis de la structure porteuse (1 ), une face interne pourvue d'un organe (22) d'ancrage de la membrane d'étanchéité (3) et des bords latéraux (20, 21 ), le premier panneau (18) présentant une face externe reposant contre la première paroi (6) de la structure porteuse (1 ) et un bord latéral (20) reposant contre la seconde paroi (7) de la structure porteuse (1 ) et le second panneau (19) présentant une face externe reposant contre la seconde paroi (7) de la structure porteuse (1 ) et un bord latéral (21 ) reposant contre la face interne du premier panneau (18), la cuve étant caractérisée en ce que le premier et le second panneaux (18, 19) comprennent chacun, sur leur face interne, un organe d'ancrage de la membrane d'étanchéité (3) comprenant une bande de liaison métallique (22) s'étendant selon un axe, parallèle à l'intersection entre la première et la seconde parois (6, 7), ladite membrane d'étanchéité (3) comportant des plaques métalliques (16) s'étendant de part et d'autre de ladite structure d'angle et une cornière (23) s'étendant entre une bande de liaison métallique (22) du premier panneau (18) et une bande de liaison métallique (22) du second panneau (19), les plaques métalliques (16) présentant des bords soudés aux bandes de liaison métalliques (22) ou à la cornière (23), ladite cornière (23) présentant des bords soudés aux bords des plaques métalliques soudés auxdites bandes de liaison métalliques (22) ou aux bandes de liaison métalliques (22).  Sealed and thermally insulating tank for storing a fluid, said sealed tank comprising an external supporting structure (1), a thermal insulation barrier (2) retained on the supporting structure (1) and a sealing membrane (3) having corrugations (17) extending in two perpendicular directions and supported by the thermal insulation barrier (2), the thermal insulation barrier (2) having a corner structure disposed at an intersection between a first and a second second wall (6, 7) of the supporting structure (1), said corner structure comprising a first and a second heat-insulating panel (18, 19) each having an external face disposed opposite the supporting structure ( 1), an inner face provided with a member (22) for anchoring the sealing membrane (3) and side edges (20, 21), the first panel (18) having an outer face resting against the first wall (6) of the supporting structure (1) and u n side edge (20) resting against the second wall (7) of the carrier structure (1) and the second panel (19) having an outer face resting against the second wall (7) of the carrier structure (1) and an edge lateral portion (21) resting against the internal face of the first panel (18), the tank being characterized in that the first and second panels (18, 19) each comprise, on their internal face, an anchoring member of the membrane sealing ring (3) comprising a metal link strip (22) extending along an axis, parallel to the intersection between the first and second walls (6, 7), said sealing membrane (3) comprising metal plates (16) extending on either side of said corner structure and an angle iron (23) extending between a metal connecting strip (22) of the first panel (18) and a metal connecting strip (22) of the second panel (19), the metal plates (16) having edges welded to the strips e said metal bracket (23) has edges welded to the edges of the metal plates welded to said metal bonding strips (22) or metal bonding strips (22).
Cuve selon la revendication 1 , dans laquelle les premier et second panneaux (18, 19) comportent chacun une plaque de contreplaqué interne (1 1 ) et une plaque de contreplaqué externe (12) définissant respectivement la face interne et la face externe desdits premier et second panneaux (18, 19) et une couche de mousse polymère isolante (10) prise en sandwich entre lesdites plaques de contreplaqué interne (1 1 ) et externe (12). Tank according to claim 1, wherein the first and second panels (18, 19) each comprise an inner plywood plate (1 1) and an outer plywood plate (12) respectively defining the inner face and the outer face of said first and second panels (18, 19) and a layer of insulating polymeric foam (10) sandwiched between said inner (1 1) and outer (12) plywood plates.
3. Cuve selon la revendication 2, dans laquelle le bord latéral (20) du premier panneau (18) reposant contre la seconde paroi (7) est pourvu d'une plaque de contreplaqué.  The vessel of claim 2, wherein the side edge (20) of the first panel (18) resting against the second wall (7) is provided with a plywood plate.
4. Cuve selon l'une quelconque des revendications 1 à 3, dans laquelle la face externe du premier panneau (18) reposant contre la première paroi (6), le bord latéral (20) du premier panneau (18) reposant contre la seconde paroi (7) et la face externe du second panneau (19) reposant contre la seconde paroi (7) sont collés à la structure porteuse (1 ).  4. Tank according to any one of claims 1 to 3, wherein the outer face of the first panel (18) resting against the first wall (6), the lateral edge (20) of the first panel (18) resting against the second wall (7) and the outer face of the second panel (19) resting against the second wall (7) are glued to the supporting structure (1).
5. Cuve selon la revendication 1 , dans laquelle une bande de liaison métallique The vessel of claim 1, wherein a metal bonding strip
(22) est retenue dans un évidement formé sur la face interne du premier ou du second panneau (18, 19) et monté dans ledit évidement (27) avec un jeu j de coulissement selon une direction transversale à la direction de ladite bande de liaison métallique (22) de sorte à autoriser un mouvement de la bande de liaison métallique (22), respectivement dans le plan du premier ou du second panneau (18, 19). (22) is retained in a recess formed on the inner face of the first or second panel (18, 19) and mounted in said recess (27) with a sliding clearance in a direction transverse to the direction of said connecting strip metal (22) so as to allow movement of the metal connecting strip (22) respectively in the plane of the first or second panel (18, 19).
6. Cuve selon l'une quelconque des revendications 1 à 5, dans laquelle la barrière d'isolation thermique est une barrière d'isolation thermique secondaire (2) et la membrane d'étanchéité est une membrane d'étanchéité secondaire (3), la cuve comportant en outre une barrière d'isolation thermique primaire (4) et une membrane d'étanchéité primaire (5).  Tank according to any one of claims 1 to 5, wherein the thermal insulation barrier is a secondary thermal insulation barrier (2) and the waterproofing membrane is a secondary waterproofing membrane (3), the tank further comprising a primary thermal insulation barrier (4) and a primary waterproofing membrane (5).
7. Cuve selon la revendication 6, dans laquelle les premier et second panneaux (18, 19) sont équipés de goujons (24) de fixation de la barrière d'isolation thermique primaire (4), faisant saillie vers l'intérieur à partir de la face interne desdits premier et second panneaux (18, 19).  7. A tank according to claim 6, wherein the first and second panels (18, 19) are provided with studs (24) for fixing the primary thermal insulation barrier (4) projecting inwards from the inner face of said first and second panels (18, 19).
8. Cuve selon les revendications 6 et 7, dans laquelle les goujons (24) de fixation de la barrière d'isolation thermique primaire s'étendent dans l'axe de l'une des bandes de liaison métalliques (22) et dans laquelle les bords des plaques métalliques soudés aux bandes de liaison métalliques (22) et/ou à la cornière 8. Tank according to claims 6 and 7, wherein the studs (24) for fixing the primary thermal insulation barrier extend in the axis of one of the metal bonding strips (22) and in which the edges of metal plates welded to metal connecting strips (22) and / or angle
(23) et les bords de la cornière (23) soudés aux bandes de liaison métalliques (22) et/ou à des bords des plaques métalliques soudés auxdites bandes de liaison métalliques (22) sont pourvus de découpes (26) pour le passage des goujons (24) de fixation de la barrière d'isolation thermique primaire (4). (23) and the edges of the angle (23) welded to the metal connecting strips (22) and / or to the edges of the metal plates welded to said strips of metal links (22) are provided with cutouts (26) for the passage of the studs (24) for fixing the primary thermal insulation barrier (4).
9. Cuve étanche selon l'une quelconque des revendications 6 à 8, dans laquelle la barrière d'isolation thermique primaire comporte, à l'intersection entre la première et la seconde parois (6, 7) de la structure porteuse (1 ), une structure d'angle comprenant un premier et un second panneaux (29a, 29b) d'isolation thermique primaire comportant chacun une face externe disposée en vis-à-vis de la membrane d'étanchéité secondaire (3), une face interne pourvue d'un organe d'ancrage (33) de la membrane d'étanchéité primaire et des bords latéraux, le premier panneau (29a) d'isolation thermique primaire présentant un bord latéral (35) reposant contre la membrane d'étanchéité secondaire (3) et le second panneau (29b) d'isolation thermique primaire comportant un bord latéral (36) reposant contre la face interne du premier panneau (29a) d'isolation thermique primaire.  9. Sealed tank according to any one of claims 6 to 8, wherein the primary thermal insulation barrier comprises, at the intersection between the first and second walls (6, 7) of the carrier structure (1), an angle structure comprising first and second primary thermal insulation panels (29a, 29b) each having an outer face disposed opposite the secondary sealing membrane (3), an inner face provided with an anchoring member (33) of the primary sealing membrane and the side edges, the first primary thermal insulation panel (29a) having a lateral edge (35) resting against the secondary sealing membrane (3) and the second primary thermal insulation panel (29b) having a side edge (36) resting against the inner face of the first primary thermal insulation panel (29a).
10. Navire (70) pour le transport d'un fluide, le navire comportant une double coque (72) et une cuve (71 ) selon l'une quelconque des revendications 1 à 9, dans lequel la double coque forme la structure porteuse externe de la cuve. 10. Vessel (70) for the transport of a fluid, the ship comprising a double hull (72) and a tank (71) according to any one of claims 1 to 9, wherein the double hull forms the external support structure of the tank.
1 1 . Procédé de chargement ou déchargement d'un navire (70) selon la revendication 10, dans lequel on achemine un fluide à travers des canalisations isolées (73, 79, 76, 81 ) depuis ou vers une installation de stockage flottante ou terrestre (77) vers ou depuis la cuve du navire (71 ).  1 1. A method of loading or unloading a ship (70) according to claim 10, wherein a fluid is conveyed through isolated ducts (73,79,76,81) to or from a floating or land storage facility (77) to or from the vessel (71).
12. Système de transfert pour un fluide, le système comportant un navire (70) selon la revendication 10, des canalisations isolées (73, 79, 76, 81 ) agencées de manière à relier la cuve (71 ) installée dans la coque du navire à une installation de stockage flottante ou terrestre (77) et une pompe pour entraîner un flux de fluide à travers les canalisations isolées depuis ou vers l'installation de stockage flottante ou terrestre vers ou depuis la cuve du navire.  12. Transfer system for a fluid, the system comprising a ship (70) according to claim 10, insulated pipes (73, 79, 76, 81) arranged to connect the tank (71) installed in the hull of the ship a floating or land storage facility (77) and a pump for driving a fluid flow through the isolated pipelines from or to the floating or land storage facility to or from the vessel vessel.
EP14721452.2A 2013-04-12 2014-04-03 Sealed and thermally insulating tank for storing a fluid Active EP2984383B1 (en)

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FR1353324A FR3004510B1 (en) 2013-04-12 2013-04-12 SEALED AND THERMALLY INSULATING TANK FOR STORAGE OF A FLUID
PCT/FR2014/050792 WO2014167213A2 (en) 2013-04-12 2014-04-03 Sealed and thermally insulating tank for storing a fluid

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JP2016515978A (en) 2016-06-02
SG11201508341QA (en) 2015-11-27
CN105283705B (en) 2017-06-09
AU2014252958B2 (en) 2016-11-17
FR3004510A1 (en) 2014-10-17
EP2984383B1 (en) 2017-05-10
WO2014167213A2 (en) 2014-10-16
MY177753A (en) 2020-09-23
FR3004510B1 (en) 2016-12-09
KR20150141977A (en) 2015-12-21
AU2014252958A1 (en) 2015-11-05
CN105283705A (en) 2016-01-27
WO2014167213A3 (en) 2015-03-26
KR102162020B1 (en) 2020-10-06
ES2629730T3 (en) 2017-08-14
RU2015145718A (en) 2017-05-18
JP6224222B2 (en) 2017-11-01
US9677711B2 (en) 2017-06-13
US20160252211A1 (en) 2016-09-01

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