EP4433744B1 - Abgedichteter und wärmeisolierender tank - Google Patents

Abgedichteter und wärmeisolierender tank

Info

Publication number
EP4433744B1
EP4433744B1 EP22818758.9A EP22818758A EP4433744B1 EP 4433744 B1 EP4433744 B1 EP 4433744B1 EP 22818758 A EP22818758 A EP 22818758A EP 4433744 B1 EP4433744 B1 EP 4433744B1
Authority
EP
European Patent Office
Prior art keywords
tank
movable part
primary
recess
securing part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22818758.9A
Other languages
English (en)
French (fr)
Other versions
EP4433744A1 (de
Inventor
Antoine PHILIPPE
Patrick Martin
Antoine Benoit
Sébastien DELANOE
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 EP4433744A1 publication Critical patent/EP4433744A1/de
Application granted granted Critical
Publication of EP4433744B1 publication Critical patent/EP4433744B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F17C3/027—Wallpanels for so-called membrane tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • 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
    • 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
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F17C2227/0142—Pumps with specified pump type, e.g. piston or impulsive type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F17C2270/0107—Wall panels

Definitions

  • the invention relates to the field of leak-proof and thermally insulated membrane tanks.
  • the invention relates to the field of leak-proof and thermally insulated tanks for the storage and/or transport of liquefied gases at low temperatures, such as tanks for transporting Liquefied Petroleum Gas (LPG) at temperatures ranging, for example, from -50°C to 0°C, or for transporting Liquefied Natural Gas (LNG) at approximately -162°C at atmospheric pressure.
  • LPG Liquefied Petroleum Gas
  • LNG Liquefied Natural Gas
  • these tanks can be installed on land or on a floating structure. In the case of a floating structure, the tank can be used for transporting liquefied gas or for receiving liquefied gas to serve as fuel for the propulsion of the floating structure.
  • the liquefied gas is LNG at atmospheric pressure.
  • Other liquefied gases can also be considered, including ethane, propane, butane, hydrogen, or ethylene.
  • the tanks of ships transporting liquefied natural gas generally comprise a double wall consisting, from the inside to the outside of the tank, of a primary watertight membrane, a primary thermally insulating barrier, a secondary watertight membrane, and a secondary thermally insulating barrier.
  • the secondary insulating barrier includes a secondary insulating block comprising a cover plate that forms a support surface for the secondary watertight membrane.
  • the patent application FR 3 090 810 This describes a sealed and insulating tank wall in which an anchoring system allows a primary insulating block to be anchored to the secondary insulating block.
  • the anchoring system includes a base fixed to the lid plate.
  • a movable part is retained in the base along a wall thickness direction and mounted freely within the base.
  • the movable part has a tapped hole opening onto its upper surface.
  • the upper surface of the movable part is flush with the upper surface of the lid plate, and the movable part is mounted in the free base in translation at least parallel to the longitudinal direction of the weld flange.
  • the moving part is prone to seizing, caused primarily by an excessively high coefficient of friction on the metal part and by the lack of uniformity in this coefficient of friction across the surface of the non-metallic component. treated.
  • One idea behind the invention is to limit the seizing of the moving part present in the primary anchoring system of a sealed and thermally insulating tank.
  • Another idea underlying the invention is to promote sliding of the moving part only in the desired directions.
  • the sliding layer improves the durability of the primary anchoring system. Indeed, by having a lower coefficient of friction than the body, the moving part can move within the body while minimizing friction between the two parts. This reduces the stress on the welds between the primary anchor and the secondary membrane, thus increasing the lifespan of the primary anchoring system. It also ensures that the moving part only moves in the desired direction, preventing it from jamming.
  • such a tank may include one or more of the following characteristics.
  • a compressible material is inserted into gaps located between the retaining element and the moving part, or between the moving part and the walls of the housing.
  • the compressible material is insulating and is chosen, for example, from polymer foams and mineral wools. Thanks to the compressibility of the material, it is possible to adjust the initial position of the moving part to a centered position, allowing the moving part a good degree of freedom of movement in either direction during commissioning.
  • the compressible material can be a low-stiffness spring.
  • the sliding layer is made of polymer.
  • the sliding layer is chosen from the following polymers: PTFE (polytetrafluoroethylene), PCTFE (polychlorotrifluoroethylene), POM (polyoxymethylene) preferably of type H for homopolymer, PEI (polyetherimide), PAEK (polyaryletherketone), PEEK (polyetheretherketone).
  • PTFE polytetrafluoroethylene
  • PCTFE polychlorotrifluoroethylene
  • POM polyoxymethylene
  • PEI polyetherimide
  • PAEK polyaryletherketone
  • PEEK polyetheretherketone
  • the polymer is reinforced with fibers, for example with glass fibers. This has the advantage of increasing the material's resistance to creep and reducing the coefficient of thermal contraction of the sliding layer.
  • the polymer sliding layer is made of a polymer loaded with particulate fillers, preferably nanofillers.
  • particulate fillers preferably nanofillers.
  • a nanofiller is defined by its size, which is between 1 and 100 nanometers.
  • the shape of the particulate fillers, particularly the nanofillers can be chosen, for example, from: sheets, fibers, granules, and spheres.
  • the particulate charges are made of at least one material chosen from: carbon, graphite, glass, cellulose and bronze.
  • the sliding layer is obtained by treating surface of said at least one surface of the body.
  • the surface treatment is a nitriding treatment.
  • the sliding layer is disposed on a surface of the retaining part in contact with the moving part.
  • the sliding layer is disposed on a surface of the retaining part in contact with the moving part and on the moving part.
  • the housing has a depth in the thickness direction such that the moving part is flush with the support surface and a length in the longitudinal direction and a width in a transverse direction such that the moving part can move at least parallel to the longitudinal direction of the metal strakes.
  • the cover plate has a counterbore on the edge of the housing, the counterbore receiving the retaining piece, the counterbore having a depth such that the retaining piece is flush with the support surface, in which the retaining piece completely covers the housing and the counterbore and has an opening, the upper face of the body being flush through said opening.
  • the moving part has a base having a width greater than that of the opening in the retaining part.
  • the movable part comprises an upper part having a width equal to that of said opening, the upper part being flush with an upper surface of the retaining part.
  • At least the base of the moving part includes the sliding layer.
  • an upper surface of the base is covered by the sliding layer. This reduces friction between the moving part and a lower surface of the retaining part.
  • one side of the upper part is covered by the sliding layer. This reduces friction between the moving part and an edge of the opening in the retaining part.
  • the retaining piece is a retaining plate.
  • the retaining piece is made of steel, for example stainless steel and/or cryogenic steel.
  • the retaining plate is fixed to the cover plate by fasteners placed around the periphery of the retaining plate, so that the fasteners are arranged outside the housing around the housing and/or by gluing.
  • fasteners for example screws or rivets, are not at risk of coming into contact with the moving part.
  • the moving part has a through tapped hole on said upper face of the moving part and the primary anchoring system further comprises a stud having a threaded lower part screwed into the tapped hole.
  • the stud has a collar extending above the moving part, in which the collar is welded around the periphery to the secondary sealing membrane in a watertight manner.
  • Such a tank can be part of an onshore storage facility, for example for storing LNG, or be installed in a floating structure, whether coastal or deep-water, including an LNG carrier, a floating storage and regasification unit (FSRU), a floating production and storage unit (FPSO), and others.
  • FSRU floating storage and regasification unit
  • FPSO floating production and storage unit
  • Such a tank can also serve as a fuel tank in any type of vessel.
  • the primary anchoring system further comprises at least one washer and at least one nut cooperating with threaded upper portions of said stud to retain said washer in support on a base plate of the primary insulating block.
  • a ship for the transport of a cold liquid product comprises a double hull and the aforementioned tank arranged in the double hull.
  • the invention also provides a transfer system for a cold liquid product, the system comprising the aforementioned vessel, insulated pipes arranged to connect the tank installed in the hull of the vessel to a floating or land-based storage facility, and a pump to drive a flow of cold liquid product through the insulated pipes from or to the floating or land-based storage facility to or from the vessel's tank.
  • the invention also provides a method for loading or unloading such a vessel, in which a cold liquid product is conveyed through insulated pipes from or to a floating or land-based storage facility to or from the vessel's tank.
  • Tank 1 for storing a liquefied fluid, such as liquefied natural gas (LNG), is shown.
  • Tank 1 has a generally polyhedral shape and comprises several walls.
  • the wall of tank 1 consists successively, in the thickness direction, from the outside to the inside of tank 1, of a secondary thermally insulating barrier 2 attached to a supporting structure 3, a secondary sealed membrane 4 resting against the secondary thermally insulating barrier 2, a primary thermally insulating barrier 5 resting against the secondary sealed membrane 4, and a primary sealed membrane 6 intended to be in contact with the liquefied natural gas contained in tank 1.
  • LNG liquefied natural gas
  • the supporting structure of tank 1 can notably be formed by the hull or double hull of a ship.
  • the supporting structure comprises a plurality of load-bearing walls 3 defining the general shape of the view, usually a polyhedral shape.
  • the secondary thermal insulation barrier 2 comprises a plurality of secondary insulating blocks 7 which are anchored to the load-bearing wall 3 by means of secondary anchoring systems 98.
  • the secondary insulating blocks 7 are generally parallelepiped in shape and are arranged in parallel rows. Three rows are designated by the letters A, B, and C.
  • Sealant strips (not shown) are interposed between the secondary insulating blocks 7 and the load-bearing wall 3 to compensate for deviations of the load-bearing wall 3 from a flat reference surface. Kraft paper can be inserted between the sealant strips and the load-bearing wall 3 if desired to prevent the sealant strips from adhering to the load-bearing wall 3.
  • the secondary watertight membrane 4 comprises a continuous layer of metallic strakes 21 with upturned edges 32 facing inwards towards the tank.
  • the strakes 21 are welded in pairs, by their upturned edges 32, on the two faces of a weld flange.
  • the weld flanges have an L-shaped cross-section.
  • the upturned edges 32 of the strakes 21 are welded to one arm of the L-shape, while the other arm is engaged in a groove 20 formed on the cover plates 10 of the secondary insulating blocks 7.
  • the cover plates 10 comprise a plurality of parallel grooves 20, the distance between two grooves 20 corresponding to the width of a strake 21, while the distance between a free edge of a block and an adjacent groove 20 corresponds to the width of a strake 21, so that a strake forms the joint between two adjacent insulating blocks 7.
  • the secondary waterproof membrane 4 is retained on the secondary thermally insulating barrier 2.
  • the weld wings and grooves 20 form sliding joints allowing the strakes 21 to contract and deform relative to the secondary insulating blocks 7.
  • the primary thermal insulating barrier 5 comprises a plurality of primary insulating blocks 22 superimposed across two rows of secondary insulating blocks 7.
  • the primary insulating blocks 22 are anchored to the secondary insulating blocks 7 by means of primary anchoring systems 97.
  • the primary anchoring systems 97 are separate from and offset from the secondary anchoring systems 98.
  • the primary insulating blocks 22 have a generally parallelepiped shape and are arranged in parallel rows. Furthermore, they have the same dimensions as the primary insulating blocks 22 except for their thickness along the thickness direction of the tank wall 1, which may be different, and in particular, less.
  • the primary thermal insulating barrier 5 is topped with a metallic sealing barrier having corrugations. Alternatively, the thermal insulating barrier 5 could be topped with a metallic sealing barrier composed of strakes.
  • the primary anchoring system 97 comprises a movable part 102 held in place by a retaining piece 101.
  • the movable piece 102 is disposed in a housing 108 cut into the cover plate 10 and the retaining piece 101 is disposed in a counterbore 109, so that the retaining piece 101 is flush with a top surface of a cover plate 10.
  • the retaining piece 101 is fixed to the cover plate 10 by means of fasteners 34 and/or by gluing.
  • the cover plate 10 includes in particular a layer of plywood with a thickness between 15 and 24 millimeters, in which the housing is cut out.
  • the waterproof membrane 4 is pierced to allow the passage of a stud 35.
  • the stud 35 subsequently allows the secondary insulating block 7 to be fixed to the primary insulating block 22.
  • FIG.3 represents the primary anchoring system 97, according to the first embodiment, viewed from above.
  • An opening 103 where the movable part 102 is flush is also filled with a piece of compressible insulating material 105.
  • the compressible insulating piece 105 is shown on only one side of the movable part 102, but another identical piece can also be placed on the other side to initially center the movable part 102 with respect to the opening 103.
  • a sliding layer 106 covers at least one side of the movable part 102.
  • the pre-positioning of the movable part 102 for example a centered pre-positioning, obtained thanks to the compressible insulating material parts 105 ensures that a certain range of mobility exists in one direction or the other in the longitudinal direction of the strakes 21. This mobility makes it possible to adjust the position of the stud 35, if necessary, either during the welding of the secondary sealing membrane 4 to compensate for positioning tolerances, or during the operation of the tank to absorb deformations which may have various causes.
  • the movable part 102 comprises an upper part 114 and a lower part 110.
  • the lower part 110 is a rectangular parallelepiped base, and the upper part 114 has a rectangular cross-section and is shorter than the lower part 110.
  • the movable part 102 includes a tapped hole 104 in an upper surface of the upper part 114, which allows the passage of a stud 35.
  • the movable part 102 is surrounded by a sliding pad 106, which is a polymer layer.
  • the lower part 110 and the upper part 114 are, for example, made of stainless steel.
  • the sliding pad 106 is disposed on an edge of the upper surface of the upper part 114, on sides 115 of the upper part 114, and on an upper surface 111 of the lower part 110 not covered by the upper part 114.
  • the sliding pad 106 can be made of a single block.
  • the sliding pad 106 can be replaced by a nitriding treatment applied to the moving part 102 on the sides 115 of the upper part 114 and on the upper surface 111 of the lower part 110.
  • Fig. 5 [ ] represents the moving part 202 according to a second embodiment.
  • the second embodiment differs from the first embodiment in that the upper part 214 is cylindrical with a tapped hole 204.
  • the lower part 210 is a base with a rectangular cross-section.
  • an upper surface 211 of the lower part 210 has a sliding layer.
  • One side 215 of the upper part 214 may also have a sliding layer.
  • the sliding layer 206 is obtained either by surface treatment of the upper surface 211 (and optionally of the side 215), or by covering the upper surface 211 (and optionally the side 215) with a sliding pad.
  • Fig. 6 represents the moving part 302 according to a third embodiment.
  • the third embodiment differs from the second embodiment in that the upper part 314 has a rectangular cross-section with rounded edges, with dimensions in a longitudinal and transverse direction smaller than those of the lower part 310.
  • the sliding layer 306 is obtained by surface treatment of an upper surface 311 of the lower part 310 and, optionally, of the sides 315 of the upper part 314 or by covering said upper surface 311 and optionally said sides 315 with a sliding pad.
  • Fig. 7 represents the moving part 402 according to a fourth embodiment.
  • the fourth embodiment differs from the second embodiment in that the upper part 414 has a rectangular cross-section and has a dimension in a longitudinal direction identical to that of the lower part 410.
  • the sliding layer 406 is obtained by surface treatment of an upper surface 411 of the lower part 410 and, optionally, of the sides 415 of the upper part 414, or by covering said upper surface 411 and optionally said sides 415 with a sliding pad.
  • Fig. 8 [ ] represents the moving part 502 according to a fifth embodiment.
  • the fifth embodiment differs from the fourth embodiment in that the upper part 514 has rounded edges.
  • the sliding layer 506 is obtained by surface treatment of an upper surface 511 of the lower part 510 and, optionally, of the sides 515 of the upper part 514, or by covering said upper surface 511 and optionally said sides 515 with a sliding pad.
  • Fig. 9 [ ] represents the moving part 602 according to a sixth embodiment.
  • the sixth embodiment differs from the first embodiment in that the polymer sliding pad 606 has dimensions in the longitudinal and transverse directions greater than those of the lower part 610.
  • Fig. 10 [ ] represents the moving part 702 according to a seventh embodiment.
  • the seventh embodiment differs from the second embodiment in that the sliding pad 706 is made of polymer and is parallelepiped in shape with rounded edges and has a dimension in the longitudinal direction identical to that of the lower part 710.
  • the lower part 710 is also covered by the sliding pad 706.
  • the sliding pad 606 or 706 can be replaced by a surface treatment of an upper surface of the lower part 610 or 710 and, optionally, of the side of the upper part 614 or 714.
  • the retaining piece 101 is a rectangular retaining plate, with a rectangular opening where the movable part 102-702 is flush and with four tapped holes 119 at the ends for attaching the fasteners 34
  • Fig. 12 represents the retaining piece according to a second variant.
  • This second variant differs from the first in that the retaining plate 201 is circular in shape.
  • the two retaining part variants are notably compatible with all embodiments of the moving part.
  • the retaining piece can be made in various other ways, for example by having a different shape and a different number of tapped holes.
  • a cutaway view of a LNG carrier 70 shows a sealed and insulated tank 71 of generally prismatic shape mounted in the double hull 72 of the ship.
  • the wall of the tank 71 comprises a primary watertight barrier intended to be in contact with the LNG contained in the tank, a secondary watertight barrier arranged between the primary watertight 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 pipelines 73 arranged on the upper deck of the ship can be connected, by means of suitable connectors, to a marine or port terminal to transfer a cargo of LNG to or from the tank 71.
  • FIG. 13 represents an example of a maritime terminal with a berth Loading and unloading station 75, a subsea pipeline 76 and an onshore installation 77.
  • the loading and unloading station 75 is a fixed offshore installation comprising a movable arm 74 and a tower 78 which supports the movable arm 74.
  • the movable arm 74 carries a bundle of insulated flexible pipes 79 which can be connected to the loading/unloading pipelines 73.
  • the steerable movable arm 74 adapts to all LNG carrier sizes.
  • An unshown connecting pipeline extends inside the tower 78.
  • the loading and unloading berth 75 allows the loading and unloading of the LNG carrier 70 to and from the onshore facility 77.
  • This facility includes liquefied gas storage tanks 80 and connecting pipelines 81 linked by the subsea pipeline 76 to the loading or unloading berth 75.
  • the subsea pipeline 76 allows the transfer of liquefied gas between the loading or unloading berth 75 and the onshore facility 77 over a long distance, for example 5 km, which makes it possible to keep the LNG carrier 70 a considerable distance from the coast during loading and unloading operations.
  • pumps on board the ship 70 and/or pumps equipping the land installation 77 and/or pumps equipping the loading and unloading station 75 are used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (16)

  1. Abgedichteter und wärmeisolierender Tank (1) zum Speichern einer Flüssigkeit, der Tank (1) umfassend eine Tankwand, die in einer Dickenrichtung aufeinanderfolgend eine an einer Trägerwand (3) gehaltene sekundäre isolierende Barriere (2), eine an der sekundären isolierenden Barriere (2) anliegende sekundäre Dichtungsmembran (4), eine an der sekundären Dichtungsmembran (4) anliegende primäre isolierende Barriere (5) und eine an der primären isolierenden Barriere (5) anliegende primäre Dichtungsmembran (6) aufweist,
    wobei die sekundäre isolierende Barriere (2) einen sekundären Isolierblock (7) mit einer eine Stützfläche für die sekundäre Dichtmembran (4) bildenden Abdeckplatte (10) umfasst,
    wobei die sekundäre Dichtmembran (4) eine Mehrzahl an Metallplanken (21) umfasst, die zum Inneren des Tanks erhöhte Kanten (32) aufweisen, wobei die Metallplanken (21) paarweise mit ihren erhöhten Kanten (32) an zwei Seiten eines Schweißflansches, der mechanisch am sekundären Isolierblock (7) gehalten wird, verschweißt sind, wobei der Schweißflansch zum Teil in eine Rille (20) eingreift, die in der Abdeckplatte (10) ausgebildet ist und sich in einer Längsrichtung erstreckt,
    wobei die primäre isolierende Barriere (5) einen primären Isolierblock (22) aufweist, der durch ein primäres Verankerungssystem (97) an dem sekundären Isolierblock (7) verankert ist,
    das primäre Verankerungssystem (97) umfassend:
    - eine Aufnahme, die in der Abdeckplatte ausgebildet ist und in die Stützfläche mündet,
    - ein bewegliches Element (102, 202, 302, 402, 502, 602, 702), das in der Aufnahme angeordnet ist und einen Körper aufweist, und
    - ein Halteelement (101, 201), das an der Deckplatte (10) befestigt ist und mit dem mobilen Element (102, 202, 302, 402, 502, 602, 702) derart zusammenwirkt, dass das mobile Element in der Dickenrichtung in der Aufnahme gestoppt wird,
    wobei die Aufnahme und das Halteelement (101, 201) ausgebildet sind zum Ermöglichen einer Verschiebung des mobilen Elements (102, 202, 302, 402, 502, 602, 702) zumindest parallel zur Längsrichtung der Metallplanken, wobei das Halteelement (101) eine Öffnung (103) aufweist, der Körper eine Basis (110, 210, 310, 410, 510, 610, 710) und einen oberen Bereich (114, 214, 314, 414, 514, 614, 714) aufweist, wobei der obere Bereiche eine Oberseite aufweist, die mit einer Oberseite des Halteelements durch die Öffnung bündig ist, wobei die Basis eine Breite aufweist, die größer ist als eine Breite der Öffnung in dem Halteelement (101, 201),
    wobei das mobile Element (102, 202, 302, 402, 502, 602, 702) eine zumindest eine Oberfläche (111, 211, 311, 411, 511) der Basis (110, 210, 310, 410, 510, 610, 710) des Körpers bedeckende Gleitschicht (106, 206, 306, 406, 506, 606, 706) aus Polymer aufweist, welche Gleitschicht (106, 206, 306, 406, 506, 606, 706) sich mit dem Halteelement (101, 201) in Kontakt befindet und einen geringeren Reibungskoeffizienten als der Körper aufweist,
    dadurch gekennzeichnet, dass
    die Abdeckplatte (10) eine Senkung am Rand der Aufnahme aufweist, wobei die Senkung das Halteelement (101) aufnimmt, wobei die Senkung eine solche Tiefe aufweist, dass das Halteelement (101) bündig mit der Stützfläche abschließt, wobei das Halteelement (101) die Aufnahme und die Senkung vollständig bedeckt,
    und dass die Gleitschicht (106, 206, 306, 406, 506, 606,706) aus Polymer ferner eine Seite (115, 215, 315, 415, 515) des oberen Bereichs des Körpers bedeckt.
  2. Tank nach Anspruch 1, wobei die Gleitschicht aus Polymer aus einem Polymer besteht, das mit teilchenförmigen Füllstoffen gefüllt ist, wobei die teilchenförmigen Füllstoffe vorzugsweise Nanofüllstoffe umfassen.
  3. Tank nach Anspruch 2, wobei die teilchenförmigen aus mindestens einem Material bestehen, das aus ausgewählt ist aus: Kohlenstoff, Graphit, Glas, Zellulose und Bronze.
  4. Abgedichteter und wärmeisolierender Tank (1) zum Speichern einer Flüssigkeit, der Tank (1) umfassend eine Tankwand, die in einer Dickenrichtung aufeinanderfolgend eine an einer Trägerwand (3) gehaltene sekundäre isolierende Barriere (2), eine an der sekundären isolierenden Barriere (2) anliegende sekundäre Dichtungsmembran (4), eine an der sekundären Dichtungsmembran (4) anliegende primäre isolierende Barriere (5) und eine an der primären isolierenden Barriere (5) anliegende primäre Dichtungsmembran (6) aufweist,
    wobei die sekundäre isolierende Barriere (2) einen sekundären Isolierblock (7) mit einer eine Stützfläche für die sekundäre Dichtmembran (4) bildenden Abdeckplatte (10) umfasst,
    wobei die sekundäre Dichtmembran (4) eine Mehrzahl an Metallplanken (21) umfasst, die zum Inneren des Tanks erhöhte Kanten (32) aufweisen, wobei die Metallplanken (21) paarweise mit ihren erhöhten Kanten (32) an zwei Seiten eines Schweißflansches, der mechanisch am sekundären Isolierblock (7) gehalten wird, verschweißt sind, wobei der Schweißflansch zum Teil in eine Rille (20) eingreift, die in der Abdeckplatte (10) ausgebildet ist und sich in einer Längsrichtung erstreckt,
    wobei die primäre isolierende Barriere (5) einen primären Isolierblock (22) aufweist, der durch ein primäres Verankerungssystem (97) an dem sekundären Isolierblock (7) verankert ist,
    das primäre Verankerungssystem (97) umfassend:
    - eine Aufnahme, die in der Abdeckplatte ausgebildet ist und in die Stützfläche mündet,
    - ein mobiles Element (102, 202, 302, 402, 502, 602, 702), das in der Aufnahme angeordnet ist und einen Körper aufweist, und
    - ein Halteelement (101, 201), das an der Deckplatte (10) befestigt ist und mit dem mobilen Element (102, 202, 302, 402, 502, 602, 702) derart zusammenwirkt, dass das mobile Element in der Dickenrichtung in der Aufnahme gestoppt wird,
    wobei die Aufnahme und das Halteelement (101, 201) ausgebildet sind zum Ermöglichen einer Verschiebung des mobilen Elements (102, 202, 302, 402, 502, 602, 702) zumindest parallel zur Längsrichtung der Metallplanken, wobei das Halteelement (101) eine Öffnung (103) aufweist, der Körper eine Basis (110, 210, 310, 410, 510, 610, 710) und einen oberen Bereich (114, 214, 314, 414, 514, 614, 714) aufweist, wobei der obere Bereiche eine Oberseite aufweist, die mit einer Oberseite des Halteelements durch die Öffnung bündig ist, wobei die Basis eine Breite aufweist, die größer ist als eine Breite der Öffnung in dem Halteelement (101, 201),
    dadurch gekennzeichnet, dass
    das mobile Element (102, 202, 302, 402, 502, 602, 702) eine Gleitschicht (106, 206, 306, 406, 506, 606, 706) aufweist, die sich mit dem Halteelement (101, 201) in Kontakt befindet und einen geringeren Reibungskoeffizienten als der Körper aufweist,
    wobei die Gleitschicht (106, 206, 306, 406, 506, 606, 706) erhalten wird durch eine Oberflächenbehandlung von mindestens einer Oberfläche des Körpers
    und dass die Gleitschicht (106, 206, 306, 406, 506, 606, 706) eine obere Fläche (111, 211, 311, 411, 511) der Basis (110, 210, 310, 410, 510, 610, 710) des Körpers und eine Seite (115, 215, 315, 415, 515) des oberen Bereichs des Körpers bildet
    und dass die Abdeckplatte (10) eine Senkung am Rand der Aufnahme aufweist, wobei die Senkung das Halteelement (101) aufnimmt, wobei die Senkung eine solche Tiefe aufweist, dass das Halteelement (101) bündig mit der Stützfläche abschließt, wobei das Halteelement (101) die Aufnahme und die Senkung vollständig bedeckt.
  5. Tank nach Anspruch 4, wobei die Oberflächenbehandlung eine Nitrierbehandlung ist.
  6. Tank nach einem der Ansprüche 1 bis 5, wobei ein komprimierbares Material (105) in Zwischenräume zwischen dem Halteelement (101, 201) und dem mobilen Element (102, 202, 302, 402, 502, 602, 702) oder zwischen dem mobilen Element und Wänden der Aufnahme eingefügt ist.
  7. Tank nach einem der Ansprüche 1 bis 6, wobei die Aufnahme in der Dickenrichtung eine Tiefe derart aufweist, dass das mobile Element (102, 202, 302, 402, 502, 602, 702) mit der Stützfläche bündig ist, und eine Länge in der Längsrichtung und eine Breite in einer transversalen Richtung derart aufweist, dass sich das mobile Element zumindest parallel zur Längsrichtung der Metallplanken bewegen kann.
  8. Tank nach einem der Ansprüche 1 bis 7, wobei der obere Bereich (114, 214, 314, 414, 514, 614, 714) mit der Gleitschicht eine Breite aufweist, die gleich der Breite der genannten Öffnung entspricht.
  9. Tank nach einem der Ansprüche 1 bis 8, wobei das Halteelement (101, 201) eine Halteplatte ist.
  10. Tank nach Anspruch 9, wobei die Halteplatte an der Abdeckplatte (10) durch Befestigungselemente (34) befestigt ist, die am Umfang der Abdeckplatte angeordnet sind, so dass die Befestigungselemente (34) außerhalb des Gehäuses um das Gehäuse herum angeordnet sind, und/oder durch Kleben.
  11. Tank nach einem der Ansprüche 1 bis 10, wobei das mobile Element (102, 202, 302, 402, 502, 602, 702) eine Gewindebohrung (104, 204, 304, 604, 704) aufweist, die in die Oberseite des beweglichen Teils (102, 202, 302, 402, 502, 602, 702) mündet, und das primäre Verankerungssystem (97) ferner einen Bolzen (35) mit einem unteren Gewindeabschnitt, der in das Gewindeloch eingeschraubt ist (104) eingeschraubt ist, umfasst.
  12. Tank nach Anspruch 1, wobei der Bolzen (35) einen Flansch aufweist, der sich über das mobile Element (102, 202, 302, 402, 502, 602, 702) erstreckt, wobei der Flansch am Umfang der sekundären Dichtungsmembran (4) dicht verschweißt ist.
  13. Tank nach Anspruch 11 oder 12, wobei das primäre Verankerungssystem (97) ferner mindestens eine Unterlegscheibe und mindestens eine Mutter aufweist, die mit oberen Gewindeabschnitten des Bolzens (35) zusammenwirkt, um die Unterlegscheibe an einer Bodenplatte des primären Isolierblocks (22) in Anlage zu halten.
  14. Schiff zum Transport eines kalten flüssigen Produkts, wobei das Schiff einen Doppelrumpf und einen in dem Doppelrumpf angeordneten Tank umfasst, wobei der Tank ein Tank gemäß einem der Ansprüche 1 bis 13 ist.
  15. Transfersystem für ein kaltes flüssiges Produkt, wobei das System ein Schiff gemäß Anspruch 14, isolierte Rohrleitungen, die so angeordnet sind, dass sie den im Rumpf des Schiffes installierten Tank mit einer schwimmenden oder landgestützten Lagereinrichtung verbinden, und eine Pumpe umfasst, um zu bewirken, dass das kalte flüssige Produkt durch die isolierten Rohrleitungen von oder zu der schwimmenden oder landgestützten Lagereinrichtung oder von dem Tank des Schiffes fließt.
  16. Verfahren zum Be- oder Entladen eines Schiffs nach Anspruch 14, bei dem ein kaltes flüssiges Produkt durch isolierte Rohrleitungen von einer schwimmenden oder landgestützten Lagereinrichtung zu dem Schiffstank oder von dem Schiffstank zu einer schwimmenden oder landgestützten Lagereinrichtung befördert wird.
EP22818758.9A 2021-11-22 2022-11-21 Abgedichteter und wärmeisolierender tank Active EP4433744B1 (de)

Applications Claiming Priority (2)

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FR2112339A FR3129455B1 (fr) 2021-11-22 2021-11-22 Cuve étanche et thermiquement isolante
PCT/EP2022/082536 WO2023089156A1 (fr) 2021-11-22 2022-11-21 Cuve étanche et thermiquement isolante

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EP4433744B1 true EP4433744B1 (de) 2025-11-12

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JP (1) JP2024540602A (de)
KR (1) KR102681744B1 (de)
CN (1) CN116490720B (de)
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FR (1) FR3129455B1 (de)
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FR2985560B1 (fr) * 2012-01-09 2015-08-21 Gaztransp Et Technigaz Cuve etanche et isolante munie de moyens de retenue primaires
KR20130099900A (ko) * 2013-05-23 2013-09-06 삼성중공업 주식회사 화물창 방벽구조
KR101444347B1 (ko) * 2013-05-24 2014-11-04 삼성중공업 주식회사 화물창 방벽용 위치조정장치 및 이를 이용한 용접방법
FR3080905B1 (fr) * 2018-05-07 2021-01-08 Gaztransport Et Technigaz Paroi de cuve etanche comprenant une membrane d'etancheite
FR3090810B1 (fr) * 2018-12-21 2021-01-01 Gaztransport Et Technigaz Système d’ancrage pour cuve étanche et thermiquement isolante

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KR20230076826A (ko) 2023-05-31
CN116490720A (zh) 2023-07-25
KR102681744B1 (ko) 2024-07-05
CN116490720B (zh) 2024-07-09
TW202332857A (zh) 2023-08-16
FR3129455A1 (fr) 2023-05-26
FR3129455B1 (fr) 2024-05-31
EP4433744A1 (de) 2024-09-25
WO2023089156A1 (fr) 2023-05-25
ES3060644T3 (en) 2026-03-27

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