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CN114502874B - Sealed and thermally insulated can - Google Patents

Sealed and thermally insulated can Download PDF

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Publication number
CN114502874B
CN114502874B CN202080067728.XA CN202080067728A CN114502874B CN 114502874 B CN114502874 B CN 114502874B CN 202080067728 A CN202080067728 A CN 202080067728A CN 114502874 B CN114502874 B CN 114502874B
Authority
CN
China
Prior art keywords
primary
corner
tank
joining
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.)
Active
Application number
CN202080067728.XA
Other languages
Chinese (zh)
Other versions
CN114502874A (en
Inventor
约翰·布戈
伯努瓦·迪贝克
爱德华·迪克卢瓦
皮埃尔·朗德吕
塞巴斯蒂安·夸扎
塞巴斯蒂安·科罗
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 CN114502874A publication Critical patent/CN114502874A/en
Application granted granted Critical
Publication of CN114502874B publication Critical patent/CN114502874B/en
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F17C3/027—Wallpanels for so-called membrane tanks
    • 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
    • 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
    • F17C2203/0308—Radiation shield
    • F17C2203/032—Multi-sheet layers
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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

Landscapes

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

Abstract

The invention relates to a sealed and thermally insulated tank for storing liquefied gas, wherein the tank comprises a first tank wall and a second tank wall, both supported by a carrier structure and comprising a secondary thermal insulation barrier (2), a secondary sealing membrane (3), a primary thermal insulation barrier (4) and a primary sealing membrane (5), wherein the tank comprises at least two corner structures (1) positioned in corner regions and separated from each other by an in-plate gap (8), each corner structure (1) comprising a secondary corner assembly (6) and each corner structure (1) having a plurality of primary corner assemblies (12) fixed to the secondary corner assemblies (6). The tank comprises a primary corner connection assembly (13) which is fixed across two secondary corner assemblies (6) of two corner structures (1) juxtaposed so as to be positioned above said in-panel gap, and said primary corner connection assembly (13) exhibits a different bending behaviour than the primary corner assembly (12) of the corner structure (1).

Description

Sealed and thermally insulated can
Technical Field
The present invention relates to the field of sealed, thermally insulated membrane tanks. In particular, the present invention relates to the field of sealed and thermally insulated tanks for storing and/or transporting liquefied gases at low temperatures, such as tanks for transporting liquefied petroleum gas (also known as LPG) having a temperature of, for example, between-50 ℃ and 0 ℃, or tanks for transporting Liquefied Natural Gas (LNG) at about-162 ℃ at atmospheric pressure. These tanks may be mounted on land or on floating structures. In the case of a floating structure, tanks may be used to transport liquefied gas or to receive liquefied gas for use as fuel to propel the floating structure.
Background
KR20040095782 discloses a corner structure comprising a secondary thermal insulation of a first tank wall and a secondary thermal insulation of a second tank wall, the secondary thermal insulation of the first tank wall and the secondary thermal insulation of the second tank wall being intended to form corners of a secondary thermal insulation barrier and being abutted together. The two secondary insulating blocks thus form a secondary corner assembly. The secondary sealing film covers the two secondary insulating blocks.
To form a primary thermal insulation barrier, the primary corner assembly is fastened to the secondary sealing film and is formed by a primary insulation block fastened via an outer face above the secondary insulation block of the first tank wall and another primary insulation block also fastened via an outer face above the secondary insulation block of the second tank wall. The two primary insulation blocks are fastened to each other using metal angle sections fastened on the inner faces of the two primary insulation blocks, thereby forming a primary corner assembly.
Two adjacent secondary corner assemblies of the same tank wall are separated from each other by an inter-plate space. The primary joint corner assembly is secured in overlying relation with the two secondary corner assemblies such that the primary joint corner assembly is positioned in alignment with the inter-plate space. In said document, the primary corner assembly for joining and the primary corner assembly are produced identically.
Said document discloses that the primary insulation blocks are made either entirely of plywood or of plywood on the inner face and an insulating foam layer on the outer face.
Disclosure of Invention
The applicant has noted that the primary corner assembly for joining is subjected to greater stresses than the other assemblies. In particular, when the can is cooled, the primary insulation block and the primary corner assembly for joining contract, which has the effect of subjecting the primary corner assembly to tensile stress.
The bending of the beams of the vessel that carry the cans also has the effect of subjecting the primary joint corner assembly to greater bending/shear stresses than the other primary corner assemblies, which may result in damage to the primary joint corner assembly.
One idea behind the invention is to modify the structure of the primary corner assembly for joining.
According to one embodiment, the invention provides a sealed and thermally insulated tank for storing liquefied gas, wherein the tank comprises a first tank wall and a second tank wall joined at a ridge and extending in a first plane and a second plane, respectively, inclined relative to each other such that the first tank wall and the second tank wall form a corner region at the junction between the first tank wall and the second tank wall, each of the first tank wall and the second tank wall being supported by a support structure and comprising in a wall thickness direction of the support structure towards an interior space of the tank: a secondary thermal insulation barrier supported by the support structure, a secondary sealing membrane supported by the secondary thermal insulation barrier, a primary thermal insulation barrier supported by the secondary sealing membrane, and a primary sealing membrane supported by the primary thermal insulation barrier and adapted to be in contact with liquefied gas,
Wherein the can comprises at least two corner structures in the corner region, said at least two corner structures being juxtaposed in a direction parallel to the prismatic portion and separated from each other by an inter-plate space, each corner structure comprising a secondary corner assembly, which secondary corner assembly ensures continuity of the secondary thermal insulation barrier and the secondary sealing film in the corner region between the first can wall and the second can wall,
wherein each corner structure comprises a plurality of primary corner assemblies fastened to secondary corner assemblies and the tank comprises a primary joining corner assembly fastened in superposition with two secondary corner assemblies of two corner structures juxtaposed such that the primary joining corner assemblies are located above the inter-plate space, the primary corner assemblies and primary joining corner assemblies of the corner structures ensuring continuity of the primary thermal insulation barrier and primary sealing film in the corner region between the first tank wall and the second tank wall,
wherein the primary corner assembly for joining has a different stiffness than the primary corner assembly for the corner structure,
and wherein the primary joint-use corner assembly comprises at least one primary joint-use insulation block comprising an upper portion and a reinforced lower portion located below the upper portion, the reinforced lower portion being secured to the secondary sealing film, and the reinforced lower portion having a greater stiffness than the upper portion.
According to one embodiment, the invention provides a sealed and thermally insulated tank for storing liquefied gas, wherein the tank comprises a first tank wall and a second tank wall joined at a ridge and extending in a first plane and a second plane, respectively, inclined relative to each other, such that the first tank wall and the second tank wall form a corner region at the junction between the first tank wall and the second tank wall, each of the first tank wall and the second tank wall being supported by a support structure and comprising in a wall thickness direction of the support structure towards an inner space of the tank: a secondary thermal insulation barrier supported by the support structure, a secondary sealing membrane supported by the secondary thermal insulation barrier, a primary thermal insulation barrier supported by the secondary sealing membrane, and a primary sealing membrane supported by the primary thermal insulation barrier and adapted to be in contact with liquefied gas,
wherein the can comprises at least two corner structures in the corner region, said at least two corner structures being juxtaposed in a direction parallel to the prismatic portion and separated from each other by an inter-plate space, each corner structure comprising a secondary corner assembly, the secondary corner assembly ensuring continuity of the secondary thermal insulation barrier and the secondary sealing film in the corner region between the first can wall and the second can wall,
Wherein each corner structure comprises a plurality of primary corner assemblies fastened to secondary corner assemblies, and the tank comprises a primary joining corner assembly fastened in superposition with two secondary corner assemblies of two corner structures juxtaposed such that the primary joining corner assembly is located above the inter-plate space, the primary joining corner assemblies and the primary corner assemblies of the corner structures ensuring continuity of the primary thermal insulation barrier and the primary sealing film in the corner region between the first tank wall and the second tank wall,
wherein the primary corner assembly for joining has a different stiffness than the primary corner assembly for the corner structure,
and wherein the primary joint-use corner assembly includes at least one primary joint-use insulation block including at least one metal or composite insert located above the inter-plate space in a thickness direction, the metal or composite insert being configured to increase rigidity of the primary joint-use insulation block in the thickness direction.
Because of these features, the different designs of the primary corner assembly for joining make it possible to adapt the element specifically to the stresses to which it is subjected, in order to prevent premature failure of the element. In addition, the reinforced lower portion thus increases the overall strength of the primary insulation block for joining, allowing the primary insulation block for joining to withstand greater stress or longer stress in fatigue. In the same manner as the reinforced lower portion, the metal or composite insert thus increases the overall tensile, bending and/or shear stiffness of the primary insulation block for joining, allowing the primary insulation block for joining to withstand greater stresses or longer stresses in fatigue.
According to embodiments, such a tank may include one or more of the following features.
According to one embodiment, the primary joint corner assembly has a different tensile and/or bending stiffness than the primary corner assembly of the corner structure.
According to one embodiment, the first tank wall and the second tank wall are planar.
According to one embodiment, the primary joint corner assembly has a greater stiffness than the primary corner assembly of the corner structure, in particular the primary joint corner assembly has a greater tensile stiffness than the primary corner assembly of the corner structure.
According to one embodiment, the primary joint corner assembly has a greater average modulus of elasticity than the primary corner assembly of the corner structure.
According to one embodiment, the primary joint corner assembly has greater flexibility than the primary corner assembly of the corner structure.
According to one embodiment, the primary joint corner assembly is separated from the adjacent primary corner assembly using insulating foam pads.
According to one embodiment, the secondary corner assembly includes a secondary insulation extending in a first plane and a secondary insulation extending in a second plane.
According to one embodiment, a secondary sealing film is secured to an upper portion of each secondary insulating block of the secondary corner assembly.
According to one embodiment, the primary corner assembly comprises a primary insulation block located in the same plane as the first tank wall and a primary insulation block located in the same plane as the second tank wall.
According to one embodiment, a primary joint corner assembly includes a primary joint insulation block extending in a first plane and a primary joint insulation block extending in a second plane.
The primary insulation blocks for joining of the first tank wall are thus fastened in overlapping relation with the tops of the two secondary insulation blocks of the juxtaposed corner structure such that they are located directly above the inter-plate space.
According to one embodiment, the primary insulating block for joining includes an upper portion and a lower portion located below the upper portion, the lower portion being fastened to the secondary sealing film.
According to one embodiment, the upper portion is reinforced and has a greater stiffness than the lower portion.
According to one embodiment, the lower portion is reinforced and has a greater modulus of elasticity or stiffness than the upper portion.
Thanks to these features, the reinforced lower portion thus increases the overall strength of the primary insulating block for joining, allowing the primary insulating block for joining to withstand greater stresses or longer stresses in fatigue. The same applies in the case where the upper part is reinforced.
According to one embodiment, the unreinforced part, i.e. the upper part or the lower part, is made of plywood.
According to one embodiment, the reinforced part, i.e. the lower part or the upper part, comprises a composite material layer, a densified wood layer or a combination of both.
According to one embodiment, the reinforced part, i.e. the upper part or the lower part, comprises a metal plate.
For example, the densified wood may be one having a density of greater than or equal to 900kg/m 3 Preferably between 1,100kg/m 3 To 1,300kg/m 3 Between, for example, about 1,200kg/m 3 Is a wood material of the formula (I).
The composite material may include an aluminum layer between a fiberglass layer and a resin layer, and laminated composite materials are known to be useful as a Rigid Secondary Barrier (RSB) or a Flexible Secondary Barrier (FSB). The composite material may also be made of reinforced textile material.
According to one embodiment, the lower part comprises a single layer made of a laminated composite material, for example comprising an aluminium layer between a glass fibre layer and a resin layer.
According to one embodiment, the reinforced part, i.e. the lower part or the upper part, comprises a first layer made of dense wood and a second layer made of laminated composite material.
According to one embodiment, the average modulus of elasticity of the reinforced portion, i.e. the upper portion or the lower portion, is greater than or equal to 1.5 times the modulus of elasticity of the upper portion.
According to one embodiment, the ratio between the dimension of the reinforced portion, i.e. the lower portion or the upper portion, in the thickness direction and the dimension of the respective upper portion or lower portion, in the thickness direction is less than or equal to 0.9, preferably the ratio between the dimension of the reinforced portion, i.e. the lower portion or the upper portion, in the thickness direction and the dimension of the respective upper portion or lower portion, in the thickness direction is comprised between 0.005 and 0.5.
According to one embodiment, when the reinforced part, i.e. the lower part or the upper part, comprises a layer made of densified wood, the ratio between the dimensions of the layer made of densified wood and the dimensions of the respective upper or lower part in the thickness direction is between 0.1 and 0.5.
According to one embodiment, when the reinforced part, i.e. the lower part or the upper part, comprises a layer made of laminated composite material, the ratio between the dimensions of the layer made of laminated composite material and the respective upper or lower part in the thickness direction is between 0.005 and 0.1.
According to one embodiment, the primary insulating block for joining includes at least one metal or composite material insert located above the inter-plate space or directly above the inter-plate space in the thickness direction, the metal or composite material insert being configured to increase the rigidity or flexibility of the primary insulating block for joining.
According to one embodiment, the metal or composite insert thus increases the overall tensile, bending and/or shear stiffness of the primary insulation block for joining, allowing the primary insulation block for joining to withstand greater stresses or longer stresses in fatigue.
According to one embodiment, the metal or composite insert has a greater modulus of elasticity than the rest of the primary insulation for joining.
According to one embodiment, the metal or composite insert is compressively pre-stressed.
According to one embodiment, the metal or composite insert comprises a leaf that is curved in the thickness direction.
According to one embodiment, the primary insulating block for bonding includes an upper portion and a lower portion located below the upper portion, a lower surface of the lower portion being fastened to or positioned facing the secondary sealing film,
And, the primary insulating block for bonding includes at least one relaxation groove configured to reduce the rigidity of the primary insulating block for bonding, the relaxation groove being formed in the lower portion and extending in the thickness direction, and preferably, the relaxation groove extending in a direction perpendicular to the direction of the ridge portion.
Thanks to these features, the loosening grooves may increase the flexibility of the primary insulating block for bonding, allowing the primary insulating block for bonding to withstand greater stresses or longer stresses in fatigue.
According to one embodiment, the groove is formed in a lower surface of the lower portion.
According to one embodiment, the loosening grooves are located above or directly above the plate-to-plate space in the wall thickness direction.
According to one embodiment, the lower portion comprises at least one pair of grooves located on either side of the relaxation groove in the direction of the ribs, the grooves having a smaller dimension in the thickness direction than the relaxation groove.
According to one embodiment, the loosening grooves and/or recesses extend only in the lower portion of the primary insulating block for joining.
According to one embodiment, the primary insulating block for joining is adhesively bonded to the secondary sealing film above or directly above one of the juxtaposed secondary corner assemblies in the thickness direction and above or directly above the other of the juxtaposed two of the secondary corner assemblies in the thickness direction, with a free space between the primary insulating block for joining and the secondary sealing film and above or directly above the inter-plate space in the thickness direction, such that there is no adhesive above the inter-plate space in the thickness direction and between the secondary sealing film and the primary insulating block for joining.
Because of these features, the absence of the adhesive bond of the joining primary insulating block directly above the inter-plate space makes it possible to avoid propagation of cracks in the adhesive toward the joining primary insulating block so as to withstand greater stress or withstand longer-time pressure in fatigue.
According to one embodiment, the lower portion is a reinforced lower portion having a greater stiffness than the upper portion to resist relative movement of the first secondary insulation with the second secondary insulation.
According to one embodiment, the primary insulation block for joining of the first can wall and the primary insulation block for joining of the second can wall each comprise an inner face and an outer face fastened to the secondary sealing film, and the can comprises a metal angle section comprising a first angle section portion fastened on the outer face of the primary insulation block for joining of the first can wall and a second angle section portion connected to the first angle section portion and fastened on the outer face of the primary insulation block for joining of the second can wall.
According to one embodiment, the primary joining insulation block of the first tank wall and the primary joining insulation block of the second tank wall comprise fastening apertures formed on an outer face of the primary joining insulation block, and the first and second angular section portions protrude on a surface facing the primary joining insulation block comprising fastening means configured to be fastened inside the fastening apertures.
According to one embodiment, the fastening apertures are formed on either side of the primary insulation block for joining.
According to one embodiment, the fastening aperture extends only in the upper portion of the primary insulation block for joining.
Such tanks may form part of an onshore storage facility, for example for storing LNG, or such tanks may be installed in offshore or deep sea structures, in particular in methane carriers, floating Storage and Regasification Units (FSRU), floating production storage and offloading units (FPSO) or other structures. Such a tank can also be used as a fuel tank on any type of vessel.
According to one embodiment, a ship for transporting a cold liquid product comprises a double hull and the aforementioned tanks arranged in the double hull.
According to one embodiment, the present invention also provides a system for delivering a cold liquid product, the system comprising: the above-mentioned ship; an insulated pipeline arranged such that the insulated pipeline connects a tank installed in the hull of the vessel to a floating or onshore storage facility; and a pump for transporting the flow of cold liquid product from the floating or onshore storage facility to the tank of the vessel through an insulated conduit or from the tank of the vessel to the floating or onshore storage facility through an insulated conduit.
According to one embodiment, the invention also provides a method for loading or unloading such a vessel, wherein cold liquid product is transported from a floating or onshore storage facility to the vessel's tank via an insulated pipeline, or cold liquid product is transported from the vessel's tank to the floating or onshore storage facility via an insulated pipeline.
Drawings
The invention will be better understood and other objects, details, features and advantages thereof will become more apparent from the following description of a plurality of specific embodiments thereof, given by way of non-limiting illustration only, with reference to the accompanying drawings.
Fig. 1 is a partially exploded perspective view showing the corner structure of a sealed and thermally insulated can at the junction between two secondary insulation blocks.
Fig. 2 is an exploded view of the primary insulating block for bonding.
Fig. 3 shows a cross-sectional view taken along line III-III of fig. 2 according to a first embodiment.
Fig. 4 shows a cross-sectional view taken along line III-III of fig. 2 according to a second embodiment.
Fig. 5 shows a cross-sectional view taken along line III-III of fig. 2 according to a third embodiment.
Fig. 6 shows a cross-sectional view taken along line III-III of fig. 2 according to a fourth embodiment.
Fig. 7 shows a cross-sectional view taken along line III-III of fig. 2 according to a fifth embodiment.
Fig. 8 shows a schematic view of a primary insulating block for bonding located above two secondary insulating blocks according to one embodiment.
Fig. 9 is a cross-sectional view of a methane carrier including a tank and a terminal for loading/unloading the tank.
Detailed Description
Conventionally, the term "upper" or "above" refers to a position located closer to the interior of the tank, while the term "below" or "beneath" refers to a position located closer to the support structure, regardless of the orientation of the tank wall relative to the earth's gravitational field. Likewise, "upper" or "inner" refers to elements located closer to the interior of the tank, while "lower" or "outer" refers to elements located closer to the support structure.
The corner structure 1 of the sealed and thermally insulated can will be described below.
The sealed and thermally insulated can includes a plurality of walls, each of the plurality of walls formed from at least one thermally insulating barrier and at least one sealing film. The corner structure 1 is placed in the corners of a sealed and thermally insulated tank at the junction between the first tank wall and the second tank wall to ensure the continuity of the thermally insulating barrier of the two walls and the continuity of the sealing film. In the embodiments described below, the tank wall includes a secondary thermal insulation barrier 2, a secondary sealing film 3 supported by the secondary thermal insulation barrier 2, a primary thermal insulation barrier 4 secured to the secondary sealing film 3, and a primary sealing film supported by the primary thermal insulation barrier 4.
The corner structure 1 thus comprises at least some elements forming part of the secondary thermal insulation barrier 2 of the tank, at least some elements forming part of the secondary sealing membrane 3 of the tank, at least some elements forming part of the primary thermal insulation barrier 4 of the tank, and at least some elements forming part of the primary sealing membrane 5 of the tank. Thereby, the corner structure can ensure: the continuity of the different thermal insulation barriers and the different sealing films at the junction between the first tank wall and the second tank wall inclined with respect to the first tank wall by a predetermined angle, for example by an angle of 90 ° or 135 °.
Fig. 1 shows the corners of a can, wherein two corner structures 1 are juxtaposed in the direction of the prismatic part 100 and separated from each other by an inter-plate space 8.
As can be seen in fig. 1, each corner structure 1 comprises a secondary corner assembly 6, which secondary corner assembly 6 together with a plurality of primary corner assemblies 12 juxtaposed in the direction of the prismatic part 100 forms a continuation of the secondary thermal insulation barrier 2 and a continuation of the secondary sealing film in the corners of the can. The tank further comprises a primary joining corner assembly 13, which primary joining corner assembly 13 is fastened in superposition with the two secondary corner assemblies 6 of the juxtaposed two corner structures 1, such that the primary joining corner assembly 13 is located immediately above the inter-plate space 8, as can be seen in particular in fig. 8. The primary corner assembly 13 for joining and the primary corner assembly 12 of the corner structure 1 form a continuation of the primary thermal insulation barrier 4 in the corner region between the first tank wall and the second tank wall and a continuation of the primary sealing film 5 in the corner region between the first tank wall and the second tank wall.
The primary corner assembly 12 and the primary corner assembly 13 for engagement are aligned on the secondary corner assembly 6 in the direction of the rib 100 and are spaced apart from each other. The space between these main primary corner assemblies 12 and the primary corner assembly 13 for joining is filled with insulating foam pads 16.
The inter-plate space is filled with one or more joint spacers 9 made of insulating material such that the one or more joint spacers 9 maintain the continuity of the secondary thermal insulation barrier 2 between the two corner structures 1.
Each secondary corner assembly 6 thus comprises a secondary insulation 7 arranged in the plane Pl of the first tank wall and a secondary insulation 7 arranged in the plane P2 of the second tank wall, such that the secondary insulation 7 arranged in the plane Pl of the first tank wall and the secondary insulation 7 arranged in the plane P2 of the second tank wall form a corner of the tank. In order to assemble the secondary insulation blocks 7 of the first wall with the secondary insulation blocks 7 of the second wall, each of the secondary insulation blocks 7 may comprise a beveled lateral edge such that the two secondary insulation blocks 7 abut together on their beveled lateral edges so as to form an angle corresponding to the angle of the corner structure 1. Alternatively, the secondary insulation blocks 7 may be assembled to each other via straight lateral edges simply inclined at a desired angle with respect to each other. In this case, the remaining space at the ridge is filled with an insulator having a shape complementary to the remaining space between the two secondary insulating blocks 7.
The secondary insulation 7 comprises a lower plate and/or an upper plate, and optionally an intermediate plate, which is made of plywood, for example. The secondary insulation 7 further comprises one or more layers of insulating foam sandwiched between and adhesively bonded to the lower plate, the upper plate and the optional intermediate plate. The insulating foam may in particular be a polyurethane-based polymer foam, optionally a fiber-reinforced polyurethane-based polymer foam.
The secondary corner assembly 6 further comprises a rigid sealing sheet 10, which rigid sealing sheet 10 is adhesively bonded to the upper plate of the secondary insulation 7. The rigid sealing strip 10 is made of the same material as the secondary thermal insulation barrier 2 of the tank wall, such that the rigid sealing strip 10 of the secondary corner assembly 6 forms a continuous portion of the secondary thermal insulation barrier 2 on the corner structure 1.
In order to sealingly connect the rigid sealing sheet 10 adhesively bonded to one of the secondary insulating blocks 7 of the secondary corner assembly 6 with the rigid sealing sheet 10 adhesively bonded to the other of the secondary insulating blocks 7 of the secondary corner assembly 6, a flexible sealing sheet 11 is adhesively bonded in superposed relation with each of the rigid sealing sheets 10, as shown in fig. 1.
The flexible sealing sheet 11 and the rigid sealing sheets 10 of the two secondary insulation blocks 7 of the corner structure 1 constitute elements of the corner structure 1 forming part of the secondary sealing membrane 2 of the tank. The rigid sealing sheet 10 is made of a laminated composite material comprising an aluminium layer between two layers of glass fibres and a resin, the rigid sealing sheet 10 being referred to as a Rigid Secondary Barrier (RSB). The flexible sealing sheet 11 is made of a laminated composite material comprising an aluminium layer between two layers of glass fibres, the flexible sealing sheet 11 being referred to as a Flexible Secondary Barrier (FSB). At the joint between the two corner structures 1, in order to sealingly connect the two secondary corner assemblies 6, one or more flexible sealing sheets 11 are adhesively bonded in superposition with the two secondary corner assemblies 6 such that the one or more flexible sealing sheets 11 cover the board-to-board space 8.
The primary corner assembly 13 for engagement has a different structure from the primary corner assembly 12 of the corner structure 1. To avoid damage to the primary joint corner assembly 13, which is subjected to greater stresses than the primary joint corner assembly 12, structural and/or material modifications are made to the primary joint corner assembly 13.
Fig. 2 is an exploded view of the primary corner assembly 13 for joining. The primary corner assembly 13 for joining includes a primary insulation block 15 for joining in the same plane P1 as the first tank wall and a primary insulation block 15 for joining in the same plane P2 as the second tank wall.
The primary insulation block 15 for joining of the first tank wall and the primary insulation block 15 for joining of the second tank wall each include an inner face and an outer face fastened to the secondary sealing film 3. The can comprises a metal angle section 18, which metal angle section 18 comprises a first angle section part 19 fastened to the outer face of the primary insulation block 15 for joining of the first can wall and a second angle section part 20 connected to the first angle section part 19 and fastened to the outer face of the primary insulation block 15 for joining of the second can wall.
The primary insulation block 15 for joining of the first tank wall and the primary insulation block 15 for joining of the second tank wall each include a fastening aperture 22 formed on an outer face of the primary insulation block 15 for joining. The first and second angular section portions 19, 20 comprise protruding fastening means 21 on the surface facing said primary insulation block 15 for joining. The fastening device 21 is configured to be fastened within the fastening aperture 22. If the insulating blocks are parallelepiped, the primary corner assembly 13 for joining also comprises a corner pad 17 made of insulating material, which corner pad 17 is located between the two primary insulating blocks 15 for joining and abuts against the flexible sealing sheet 11. The corner pads 17 provide continuity of insulation in which the orientation of the insulation is changed.
The primary corner assembly 12 further comprises primary insulation blocks 14 lying in the same plane P1 as the first tank wall and primary insulation blocks 14 lying in the same plane P2 as the second tank wall, the metal corner sections 18 fastening the two primary insulation blocks 14 together with the corner pads 17. The primary insulation block 14 is entirely made of plywood.
The specific features of the primary insulating block 15 for bonding are described below. Fig. 3 to 8 show different embodiments of the primary insulating block 15 for joining.
In the embodiment of fig. 3 to 6, the primary insulating blocks 15 for joining are not entirely made of plywood, unlike the primary insulating blocks 14.
In the first embodiment shown in fig. 3, the primary insulating block 15 for joining includes an upper portion 23 and a reinforced lower portion 24, the lower portion 24 being located below the upper portion 23 and adhesively bonded to the upper portion 23. The reinforced lower portion 24 is adhesively bonded to the secondary sealing film 3. The upper part 23 is made of plywood and has a weight of, for example, 600kg/m 3 To 800kg/m 3 For example about 700kg/m 3 Is a density of (3). The reinforced lower portion 24 is made of dense wood having a density greater than or equal to 900kg/m 3 Preferably between 1,100kg/m 3 To 1,300kg/m 3 Between, for example, about 1,200kg/m 3 And dense wood has a greater modulus of elasticity than plywood. The fastening apertures 22 are formed from the outer face to the inner face on either side of the primary insulating block 15 for joining and thus pass through the upper portion 23 and the reinforced lower portion 24. The apertures 22 formed on both sides can fasten the metal angle section 18 even after the upper part 23 and the lower part have been assembled with each other.
Fig. 4 shows a second embodiment of the primary insulating block 15 for bonding. This embodiment differs from the first embodiment only in the design of the fastening apertures 22. The fastening aperture 22 extends only in the upper portion 23 of the primary insulation block 15 for joining, so the fastening aperture 22 is a blind aperture after the assembly of the upper portion 23 and the lower portion 24.
Fig. 5 shows a third embodiment of the primary insulating block 15 for bonding. This embodiment differs from the second embodiment in the material used in the reinforced lower portion 24. In this embodiment, the reinforced lower portion 24 consists of a first layer 25 and a second layer 26 adhesively bonded to the first layer 25. The first layer 25 is made of dense wood, while the second layer 26 is made of laminated composite material RSB.
Fig. 6 shows a fourth embodiment of the primary insulating block 15 for bonding. This embodiment is different from the foregoing embodiment in that the primary insulating block for joining 15 does not include an upper portion and a lower portion. However, the primary insulating block for joining 15 includes an insert 27 made of metal or composite material inside the primary insulating block for joining. The insert 27 includes a leaf-shaped portion curved in the thickness direction. In the embodiment shown, the concave surface of the curved leaf faces the inner face of the primary insulation block 15 for joining. However, in another embodiment, the concave surface of the curved leaf portion faces in the opposite direction to the inner surface of the primary insulation block 15 for joining.
According to one embodiment, the insert 27 is pre-stressed. According to another embodiment, the insert 27 is provided with a tensile prestressing.
Fig. 7 shows a fifth embodiment of the primary insulating block 15 for bonding. In this embodiment, the primary insulating block 15 for joining includes an upper portion 23 and a lower portion 24 located below the upper portion 23. The lower portion 24 includes a main relief groove 28, and the main relief groove 28 is formed in a lower surface of the lower portion 24 and extends in a thickness direction and in a direction perpendicular to a direction of the ridge 100. The relief groove 28 is located directly above the plate-to-plate space in the wall thickness direction. The lower portion 24 includes a pair of grooves 29, the pair of grooves 29 being located on either side of the loosening groove 28 in the direction of the ridge 100. The recess 29 has a smaller dimension in the thickness direction than the relaxation groove 28, so that it is possible to collect excess adhesive that may move into the area of the lower portion 24 facing the inter-plate space 8.
According to another embodiment, not shown, the loosening recess 28 is not made by machining the lower portion 24. In this embodiment, the lower portion 24 comprises two blocks fastened to the upper portion 23 and separated from each other, so that a slack groove 28 is formed between the two blocks.
Fig. 8 shows a sixth embodiment of the primary insulating block 15 for bonding. In this embodiment, the primary insulating block 15 for bonding is adhesively bonded to the secondary sealing film 3 directly above one of the juxtaposed secondary insulating blocks 7 in the thickness direction, and the primary insulating block 15 for bonding is adhesively bonded to the secondary sealing film 3 above or directly above the other of the juxtaposed two secondary insulating blocks of the same tank wall in the thickness direction. There is a free space between the primary insulating block for bonding 15 and the secondary sealing film 3 and directly above the inter-plate space in the wall thickness direction so that there is no adhesive between the secondary sealing film 3 and the primary insulating block for bonding 15 directly above the inter-plate space 8 in the wall thickness direction.
These specific structural or material characteristics of the joining primary insulating block 15 of the above embodiment may of course be combined. For example, the primary insulating block 15 for joining of fig. 5 may also be provided with loosening grooves 28, 29 and/or inserts 27, and/or through-holes 22, and/or discontinuous adhesive bonding.
In other embodiments, it is contemplated that the primary joint-use corner assembly 13 has one of the structures described above, and one or more of the primary joint-use corner assemblies 12 may also be identical to the primary joint-use corner assembly 13.
Referring to fig. 9, a cross-sectional view of a methane carrier 70 shows a sealed and insulated tank 71 having a generally prismatic shape assembled in a double hull 72 of a ship. The walls of the tank 71 comprise a primary sealing barrier adapted to be in contact with LNG contained in the tank, a secondary sealing barrier arranged between the primary sealing barrier and the double hull 72 of the ship, and two insulating barriers arranged between the primary sealing barrier and the secondary sealing barrier and between the secondary sealing barrier and the double hull 72, respectively.
In a manner known per se, a loading/unloading pipeline 73 provided on the top deck of the ship can be connected to the sea or port terminal by means of suitable connectors in order to transfer LNG cargo from the tank 71 or to transfer LNG cargo to the tank 71.
Fig. 9 shows an example of an offshore terminal comprising a loading and unloading station 75, a subsea pipeline 76 and a land-based facility 77. The loading and unloading station 75 is a stationary offshore unit, and the loading and unloading station 75 comprises a mobile arm 74 and a tower 78 supporting the mobile arm 74. The moving arm 74 carries a bundle of insulated flexible conduits 79 that can be connected to the loading/unloading duct 73. The orientable movable arm 74 is adapted to various sizes of methane carriers. A connecting conduit, not shown, extends inside the tower 78. The loading and unloading station 75 allows methane carriers to be loaded and unloaded from the onshore facility 77 or loaded and unloaded to the onshore facility 77. The onshore facility 77 comprises a liquefied gas storage tank 80 and a connection pipe 81 connected to the loading or unloading station 75 by means of an underwater pipe 76. The underwater pipeline 76 allows the liquefied gas to be transported over a long distance, for example 5km, between the loading or unloading station 75 and the onshore facility 77, which allows the methane carrier 70 to be kept far offshore during loading and unloading operations.
To generate the pressure required to transfer the liquefied gas, pumps carried on the ship 70, and/or provided at the onshore facility 77, and/or provided at the loading and unloading station 75 are used.
While the invention has been described in connection with a number of specific embodiments, it will be evident that the invention is in no way limited to these embodiments and that if all technical equivalents of the means described and any combination thereof fall within the scope of the invention, the invention includes all technical equivalents of the means described and any combination thereof.
Use of the verb "to comprise," "to comprise," or "to comprise" and its conjugations does not exclude the presence of elements or steps other than those stated in a claim.
In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Claims (21)

1. A sealed and thermally insulated tank for storing liquefied gas, wherein the tank comprises a first tank wall and a second tank wall joined at a prismatic portion (100) and extending on a first plane (P1) and a second plane (P2) inclined relative to each other, respectively, such that the first tank wall and the second tank wall form a corner region at a junction between the first tank wall and the second tank wall, each of the first tank wall and the second tank wall being supported by a support structure and comprising in a wall thickness direction of the support structure towards an interior space of the tank: a secondary thermal insulation barrier (2) supported by the support structure, a secondary sealing membrane (3) supported by the secondary thermal insulation barrier (2), a primary thermal insulation barrier (4) supported by the secondary sealing membrane (3), and a primary sealing membrane (5) supported by the primary thermal insulation barrier (4) and adapted to be in contact with liquefied gas,
Wherein the tank comprises at least two corner structures (1) located in the corner region, the corner structures (1) being juxtaposed in a direction parallel to the ribs and separated from each other by an inter-plate space (8), each corner structure (1) comprising a secondary corner assembly (6), the secondary corner assembly (6) ensuring continuity of the secondary thermal insulation barrier (2) and the secondary sealing film (3) in the corner region between the first tank wall and the second tank wall,
wherein each corner structure (1) comprises a plurality of primary corner assemblies (12) fastened to the secondary corner assemblies (6), and the tank comprises a primary joining corner assembly (13), the primary joining corner assembly (13) being fastened in superposition with two secondary corner assemblies (6) of two juxtaposed said corner structures (1) such that the primary joining corner assembly (13) is located above the inter-plate space (8), the primary joining corner assembly (13) and the primary corner assembly (12) of the corner structure (1) ensuring continuity of the primary thermal insulation barrier (4) and the primary sealing film (5) in the corner region between the first tank wall and the second tank wall,
Wherein the primary joint corner assembly (13) has a different stiffness than the primary corner assembly (12) of the corner structure (1),
and wherein the primary joint-use corner assembly (13) comprises at least one primary joint-use insulation block (15), at least one primary joint-use insulation block (15) comprising an upper portion (23) and a reinforced lower portion (24) located below the upper portion (23), the reinforced lower portion (24) being fastened to the secondary sealing film (3), and the reinforced lower portion (24) having a greater stiffness than the upper portion (23).
2. Tank according to claim 1, wherein the joining primary insulation block (15) comprises at least one metal or composite insert (27), the metal or composite insert (27) being located above the inter-plate space (8) in the thickness direction, the metal or composite insert being configured to increase the stiffness of the joining primary insulation block (15) in the thickness direction.
3. A sealed and thermally insulated tank for storing liquefied gas, wherein the tank comprises a first tank wall and a second tank wall joined at a prismatic portion (100) and extending in a first plane (P1) and a second plane (P2) respectively inclined with respect to each other, such that the first tank wall and the second tank wall form a corner region at a junction between the first tank wall and the second tank wall, each of the first tank wall and the second tank wall being supported by a support structure and comprising in a wall thickness direction of the support structure towards an interior space of the tank: a secondary thermal insulation barrier (2) supported by the support structure, a secondary sealing membrane (3) supported by the secondary thermal insulation barrier (2), a primary thermal insulation barrier (4) supported by the secondary sealing membrane (3), and a primary sealing membrane (5) supported by the primary thermal insulation barrier (4) and adapted to be in contact with liquefied gas,
Wherein the tank comprises at least two corner structures (1) located in the corner region, the corner structures (1) being juxtaposed in a direction parallel to the ribs and separated from each other by an inter-plate space (8), each corner structure (1) comprising a secondary corner assembly (6), the secondary corner assembly (6) ensuring continuity of the secondary thermal insulation barrier (2) and the secondary sealing film (3) in the corner region between the first tank wall and the second tank wall,
wherein each corner structure (1) comprises a plurality of primary corner assemblies (12) fastened to the secondary corner assemblies (6), and the tank comprises a primary joining corner assembly (13), the primary joining corner assembly (13) being fastened in superposition with two secondary corner assemblies (6) of two juxtaposed said corner structures (1) such that the primary joining corner assembly (13) is located above the inter-plate space (8), the primary joining corner assembly (13) and the primary corner assembly (12) of the corner structure (1) ensuring continuity of the primary thermal insulation barrier (4) and the primary sealing film (5) in the corner region between the first tank wall and the second tank wall,
Wherein the primary joint corner assembly (13) has a different stiffness than the primary corner assembly (12) of the corner structure (1),
and wherein the primary joint-use corner assembly (13) comprises at least one primary joint-use insulation block (15), the primary joint-use insulation block (15) comprising at least one metal or composite insert (27) located above the inter-plate space (8) in the thickness direction, the metal or composite insert being configured to increase the stiffness of the primary joint-use insulation block (15) in the thickness direction.
4. A tank according to one of claims 1 to 3, wherein the primary joint corner assembly (13) comprises a primary joint insulation block (15) extending in the first plane (P1) and a primary joint insulation block (15) extending in the second plane (P2).
5. A tank according to claim 3, wherein the primary insulating block (15) for joining comprises an upper portion (23) and a reinforced lower portion (24) located below the upper portion (23), the reinforced lower portion (24) being fastened to the secondary sealing film (3), and the reinforced lower portion (24) having a greater rigidity than the upper portion (23).
6. Tank according to claim 1 or claim 5, wherein the upper portion (23) is made of plywood.
7. Tank according to claim 1 or claim 5, wherein the lower portion (24) comprises a layer of composite material, a layer of densified wood, or a combination of a layer of composite material and a layer of densified wood.
8. Can of claim 7, wherein the lower portion (24) comprises a single layer made of laminated composite material.
9. Tank according to claim 7, wherein the lower portion (24) comprises a first layer made of densified wood and a second layer made of laminated composite material.
10. Can of claim 1 or claim 5, wherein the average modulus of elasticity of the reinforced lower portion (24) is greater than or equal to 1.5 times the modulus of elasticity of the upper portion (23).
11. Tank according to claim 1 or claim 5, wherein the ratio between the dimension of the lower portion (24) in the thickness direction and the dimension of the upper portion (23) in the thickness direction is less than or equal to 0.9.
12. Can according to one of claims 1 to 3, wherein the primary insulating block (15) for joining comprises an upper portion (23) and a lower portion (24) located below the upper portion (23), the lower surface of the lower portion (24) being fastened to the secondary sealing film (3),
And wherein the primary insulating block (15) for bonding includes at least one loosening groove (28, 29), the loosening groove (28, 29) being configured to reduce rigidity of the primary insulating block (15) for bonding, the loosening groove (28, 29) being formed in the lower portion (24) and extending in the wall thickness direction.
13. Tank according to claim 12, wherein the loosening grooves (28, 29) are located above the plate interspaces (8) in the wall thickness direction.
14. A tank according to one of claims 1 to 3, wherein the primary joining insulating block (15) is adhesively bonded to the secondary sealing film (3) above one of the juxtaposed secondary corner assemblies (6) in the thickness direction and above the other of the juxtaposed two secondary corner assemblies (6) in the thickness direction, with a free space between the primary joining insulating block (15) and the secondary sealing film (3) and above the inter-plate space (8) in the thickness direction, such that there is no adhesive above the inter-plate space (8) in the thickness direction and between the secondary sealing film (3) and the primary joining insulating block (15).
15. A can according to one of claims 1 to 3, wherein the primary joining insulation block (15) of the first can wall and the primary joining insulation block (15) of the second can wall each comprise an inner face and an outer face fastened to the secondary sealing film (3), and the can comprises a metal angle section (18), the metal angle section (18) comprising a first angle section portion (19) and a second angle section portion (20), the first angle section portion (19) being fastened on the outer face of the primary joining insulation block (15) of the first can wall, the second angle section portion (20) being connected to the first angle section portion (19) and fastened on the outer face of the primary joining insulation block (15) of the second can wall.
16. Tank according to claim 15, wherein the joining primary insulation block (15) of the first tank wall and the joining primary insulation block (15) of the second tank wall comprise a fastening aperture (22), the fastening aperture (22) being formed on the outer face of the joining primary insulation block (15), and the first angular section portion (19) and the second angular section portion (20) comprise protruding fastening means (21) on the surface facing the joining primary insulation block (15), the fastening means (21) being configured to be fastened inside the fastening aperture (22).
17. Can of claim 16, wherein the fastening apertures (22) are formed on either side of the primary insulating block (15) for joining.
18. Tank according to claim 1 or claim 5, wherein the primary joining insulation blocks (15) of the first tank wall and the primary joining insulation blocks (15) of the second tank wall each comprise an inner face and an outer face fastened to the secondary sealing membrane (3), and the tank comprises a metal angle section (18), the metal angle section (18) comprising a first angle section portion (19) and a second angle section portion (20), the first angle section portion (19) being fastened on the outer face of the primary joining insulation blocks (15) of the first tank wall, the second angle section portion (20) being connected to the first angle section portion (19) and fastened on the outer face of the primary joining insulation blocks (15) of the second tank wall, wherein the primary joining insulation blocks (15) of the first tank wall and the primary joining insulation blocks (15) of the second tank wall comprise a fastening aperture (22) formed in the inner face of the primary joining insulation blocks (15), the second angle section portion (20) being formed on the outer face of the primary joining insulation blocks (15) and the primary side (21), and wherein the fastening aperture (22) extends only in the upper portion (23) of the primary insulation block (15) for engagement.
19. A ship (70) for transporting a cold liquid product, the ship comprising a double hull (72) and a tank (71) according to one of claims 1 to 18, the tank (71) being arranged in the double hull.
20. A system for delivering a cold liquid product, the system comprising: the vessel (70) of claim 19; -an insulated pipeline (73, 79, 76, 81), the insulated pipeline (73, 79, 76, 81) being arranged such that the insulated pipeline connects the tank (71) installed in the hull of the vessel to a floating or onshore storage facility (77); and a pump for transporting a flow of cold liquid product from the floating or onshore storage facility through the insulated pipeline to the tank of the vessel or for transporting a flow of cold liquid product from the tank of the vessel through the insulated pipeline to the floating or onshore storage facility.
21. A method for loading or unloading a ship (70) according to claim 19, wherein cold liquid product is transported from a floating or onshore storage facility (77) to the tank (71) of the ship through insulated pipelines (73, 79, 76, 81) or cold liquid product is transported from the tank (71) of the ship to a floating or onshore storage facility (77) through insulated pipelines (73, 79, 76, 81).
CN202080067728.XA 2019-09-27 2020-09-28 Sealed and thermally insulated can Active CN114502874B (en)

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