JP2014521556A - Insulating block for manufacturing tank walls - Google Patents

Insulating block for manufacturing tank walls Download PDF

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Publication number
JP2014521556A
JP2014521556A JP2014523361A JP2014523361A JP2014521556A JP 2014521556 A JP2014521556 A JP 2014521556A JP 2014523361 A JP2014523361 A JP 2014523361A JP 2014523361 A JP2014523361 A JP 2014523361A JP 2014521556 A JP2014521556 A JP 2014521556A
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Prior art keywords
insulating
liquid
plate
spacer
tank
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JP2014523361A
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Japanese (ja)
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JP6134712B2 (en
Inventor
ジャン、ピエール
ゲルトン、ブルーノ
エリー、ミカエル
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ガズトランスポール エ テクニガズGaztransport Et Technigaz
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Priority to FR1157036 priority Critical
Priority to FR1157036A priority patent/FR2978749B1/en
Application filed by ガズトランスポール エ テクニガズGaztransport Et Technigaz filed Critical ガズトランスポール エ テクニガズGaztransport Et Technigaz
Priority to PCT/FR2012/051725 priority patent/WO2013017773A2/en
Publication of JP2014521556A publication Critical patent/JP2014521556A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C3/00Vessels not under pressure
    • F17C3/02Vessels not under pressure with provision for thermal insulation
    • F17C3/025Bulk storage in barges or on ships
    • F17C3/027Wallpanels for so-called membrane tanks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0147Shape complex
    • F17C2201/0157Polygonal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05Size
    • F17C2201/052Size large (>1000 m3)
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0329Foam
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0329Foam
    • F17C2203/0333Polyurethane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0337Granular
    • F17C2203/0341Perlite
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0354Wood
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0358Thermal insulations by solid means in form of panels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0612Wall structures
    • F17C2203/0626Multiple walls
    • F17C2203/0631Three or more walls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/032Hydrocarbons
    • F17C2221/033Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033Small pressure, e.g. for liquefied gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/01Improving mechanical properties or manufacturing
    • F17C2260/011Improving strength
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/03Dealing with losses
    • F17C2260/031Dealing with losses due to heat transfer
    • F17C2260/033Dealing with losses due to heat transfer by enhancing insulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0102Applications for fluid transport or storage on or in the water
    • F17C2270/0105Ships
    • F17C2270/0107Wall panels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0102Applications for fluid transport or storage on or in the water
    • F17C2270/011Barges
    • F17C2270/0113Barges floating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0102Applications for fluid transport or storage on or in the water
    • F17C2270/0118Offshore
    • F17C2270/0123Terminals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0134Applications for fluid transport or storage placed above the ground
    • F17C2270/0136Terminals

Abstract

An insulating block (20) for manufacturing a liquid-tight insulating tank wall, comprising a bottom panel (8), a cover panel (7), and a plurality of elongated spacer structures (between the panels) 1 and 12), and this spacer structure is provided between the lower plate and the upper plate, and is provided between the lower plate and the upper plate, respectively. The lower plate and the upper plate are held in parallel with each other by the row of columns, and the spacer structure is fixed to the lower plate and the cover panel fixed to the bottom panel. The thermal insulation liner (11) provided between the panels is provided in parallel with each other by the upper plate, and the space between the columns of the spacer structure It fills the space between the pacer structure.
[Selection] Figure 2

Description

  The present invention relates to the field of manufacturing liquid-tight insulating tanks, in particular to tanks for storing cold or hot liquids, and more particularly to tanks for storing and / or transporting liquefied gas. .

  In the field of maritime transport of liquid gas, especially in gases with a high methane content, tanks with membranes are known, which are intended to contain cold liquids and are resistant to ship loads. It consists of a tank wall held by a structure. The tank wall is held by the secondary insulation barrier held by the load-resistant structure, the secondary liquid-tight thin film held by the secondary insulation barrier, and the secondary liquid-tight thin film in the direction from the outside to the inside of the tank. A primary insulation barrier, and a primary liquid-tight thin film held by the primary insulation barrier. In French Patent No. 2877638, the insulation barrier is basically composed of boxes, and each box is composed of a heat insulation liner provided in layers parallel to the tank wall, and a compression acting between the cover panel and the bottom panel. A load resistant member that rises in the thickness direction of the thermal insulation liner to absorb the force.

  In use, the tank wall box that forms the insulating barrier is exposed to the static pressure of the liquid contained in the tank moved by the rolling and pitching of the ship and the compressive force of dynamic shock. The box must withstand these forces for a long service life, and if the underlying box collapses, the film is at risk of bursting and the cost of work includes box replacement There is a need. French Patent No. 2877638 describes the use of struts having a small cross-section relative to the dimensions of the thermal insulation member in a plane parallel to the tank wall. This solution makes it possible to transfer all of the compressive force to the struts. These struts tend to dent the cover panel and bottom panel when struck. In addition, increasing the cross section of the column results in an increase in the heat escape path between the two cover panels.

  German Patent No. 2441392 describes a tank wall member having an upper panel, a lower panel and a profiled element. Each contour member is constituted by two side plates extending along the thickness direction of the tank wall member and spaced from each other by a spacer member. The member 6 shown in FIG. 2 of this document is an insulating material having no mechanical strength provided in the space between the side plate and the spacer member.

  French Patent No. 2068795 describes a thermally insulating wall structure. This wall structure has a wooden support frame. A steel profile member having a bowl-shaped cross section is fixed or attached to the first support frame. The steel contour member and the second support frame (reference numeral 7c in FIG. 2 of this document) extend in different directions.

  According to one embodiment, the present invention is an insulating block for manufacturing a liquid-tight insulating tank wall, and is provided between a bottom panel, a cover panel, and the bottom panel and the cover panel. A plurality of elongated spacer structures, wherein the bottom panel and the cover panel are planar and parallel to each other, and the spacer structures are located between the lower plate, the upper plate, and the lower plate and the upper plate, respectively. The lower plate and a row of columns fixed to the upper plate, the lower plate and the upper plate being held in parallel with each other by the row of columns, A spacer structure is provided in parallel to each other by the lower plate fixed to the bottom panel and the upper plate fixed to the cover panel. And a thermal insulating liner provided between the bottom panel and the cover panel fills the space between the support columns of the spacer structure and the space between the spacer structures. An insulating block is provided.

  According to one embodiment, the spacer structure has an upper lateral reinforcement located along the row of struts, the upper lateral reinforcement being on both sides of one of the columns in the row and the Connected to the top plate. According to one embodiment, the spacer structure has a lower lateral reinforcement located along the row of struts, the lower lateral reinforcement being on both sides of one of the columns in the row and the Connected to the lower plate.

According to some embodiments, such an insulation block has one or more of the following features.
1. The spacer structure has a pair of upper lateral reinforcements and / or a pair of lower lateral reinforcements positioned on either side of a row of struts.
2. The transverse reinforcement is a bar having a square or rectangular cross section.
3. The strut has a square or rectangular cross section.
4). A thermal insulating liner is composed of pre-cut blocks of polymer foam.
By using a liner that has been cut in advance, it is possible to produce insulating blocks more quickly by reducing the number of members to be handled.
5. An insulating block is horizontally closed around the bottom panel and the cover panel,
The thermal insulation liner is composed of pearlite or glass wool.
6). The wall closing the lateral direction of the insulating block is made of a glass fiber sheet.
7). The wall closing the lateral direction of the insulating block is made of plywood.
8). The struts and the lateral reinforcement are adhesively bonded and then fastened with a stapler.
9. The thickness of the bottom panel is 9 mm.
10. The insulating block includes an outer spacer structure along its edge, and the outer spacer structure includes a triangular support at its end to form a gap at the corner of the insulating block.

  The cover panel can be manufactured in a plurality of layers. In a preferred embodiment, the cover panel has a thickness of 12 mm to 30 mm.

  The spacer structure can be formed of different materials, for example, a composite material of a wooden material and a damping material. This can improve the dynamic behavior due to damping.

According to a preferred embodiment, the thermally insulating foam is a polyvinyl chloride (PVC) foam or a polyurethane (PU) foam. In one preferred embodiment, the density of the polyvinyl chloride (PVC) foam is 35 kg / m 3 .

  According to one embodiment, such an insulating block comprises a layer of insulating material, the layer of insulating material being disposed on the outer surface of the bottom panel, and for accommodating the protrusions of the liquid-tight thin film It has a plurality of parallel grooves.

  Advantageously, such a layer of insulating material has cuts that allow nitrogen to circulate.

  According to embodiments, the present invention is also a method for manufacturing an insulating block, wherein a plurality of spacer structures parallel to each other are positioned in a mold hole, and the upper plate of the spacer structure is placed in the mold. Disposing the bottom panel of the spacer structure, fixing the bottom panel of the lower plate of the spacer structure, and embedding the support column of the spacer structure in the thermal insulation liner Introducing the thermal insulation liner into the space between the bottom walls of the mold, turning the insulation block over, fixing the cover panel to the top plate of the spacer structure, and Removing the insulating block from the manufacturing method.

  According to one embodiment, the present invention also provides a liquid-tight insulating tank having a tank wall held in a load-resistant structure, wherein the tank wall is directed from the outside to the inside of the tank. A secondary insulation barrier held in the load-resistant structure, a secondary liquid-tight thin film held in the secondary insulation barrier, a primary insulation barrier held in the secondary liquid-tight thin film, and the primary insulation barrier The primary insulation barrier and / or the secondary insulation barrier is basically composed of a plurality of insulation blocks, and the insulation blocks are juxtaposed in a repeating pattern. A liquid-tight insulating tank is provided.

According to one embodiment, such a tank has one or more of the following characteristics.
1. Primary liquid-tight film and / or primary liquid-tight film made of corrugated sheet metal plates welded to each other so that the corrugated secondary liquid-tight film is corrugated, and the outer wall of the cover panel and tank wall of the box where the insulating layer is self-supporting The corrugated sheet metal is disposed between the thin film and / or the secondary liquid-tight thin film and has a thickness of the insulating material so as to accommodate the corrugations of the primary liquid-tight thin film and / or the secondary liquid-tight thin film. Grooves that are thicker than the corrugated height of the plate and parallel to the layer made of the insulating material are formed.
2. Consists of corrugated sheet metal plates that are welded together so that the secondary liquid-tight thin film is corrugated,
The insulating layer is disposed between the outer surface of the bottom panel of the insulating block of the primary insulating barrier and the secondary liquid-tight thin film on the tank wall and accommodates the corrugation of the secondary liquid-tight thin film. The layer made of the material is thicker than the corrugated height of the corrugated sheet metal plate, and a groove parallel to the layer made of the insulating material is formed.
3. The secondary liquid-tight thin film has a low expansion coefficient and consists of a continuous fabric of steel skins welded in parallel in a liquid-tight manner with an upward edge on a parallel weld support, the layer of insulating material being the primary insulation barrier Between the outer surface of the bottom panel of the insulating block and the secondary liquid-tight thin film of the tank wall,
In order to accommodate the upward edge of the secondary liquid-tight thin film and the weld support, the thickness of the layer made of the insulating material is such that the height of the upward edge of the secondary liquid-tight thin film and the weld support is high. Grooves that are thicker than that and parallel to the layer made of the insulating material are formed.

  Such tanks are part of an onshore storage facility, for example for LNG storage, or installed in floating coastal or offshore structures, especially methane tankers, floating storage and vaporization equipment (FSRU), floating bodies It is used for a type production storage and loading facility (FPSO).

  According to one embodiment, a ship for transporting a cold liquid product has a double hull and the above-mentioned tank provided in the double hull.

  According to one embodiment, the present invention also allows a cold liquid product to be transported through an insulated pipeline from a floating or shore storage facility to a ship's insulating tank or from the insulating tank to the storage facility. Provide a method for loading or unloading on a ship.

  According to one embodiment, for loading or unloading a ship, a cold liquid product is stored through an insulated pipeline, from a floating or shore storage facility to a ship's insulated tank, or from the insulated tank. Such ships are used to be transported to the facility.

  According to one embodiment, the present invention also provides an insulated pipeline arranged to connect a tank installed in a double hull of a ship with a floating or onshore storage facility, and a cold liquid product, A system is provided for transporting a cold liquid product, comprising a pump for transporting from the floating or onshore storage facility to the ship's insulating tank or from the insulating tank to the storage facility through an insulating pipeline.

  One idea underlying the present invention is to provide an insulating self-supporting box with compressive strength while having good resistance to lateral and bending stresses.

  One aspect of the invention began with the idea of providing an insulating block in which forces are transmitted uniformly.

  One aspect of the present invention began with the idea of preventing holes in the cover.

  One aspect of the present invention began with the idea of reinforcing the bending strength of the cover.

  One aspect of the present invention began with the idea of limiting the risk of a column buckling.

  One aspect of the present invention began with the idea of providing an insulating block that is easy to manufacture automatically.

  One aspect of the present invention began with the idea of accommodating a protruding portion of this layer of material by introducing a layer of insulating material between a self-supporting box and an underlying liquid-tight film. Certain aspects of the present invention produce this layer of material as a module with the same dimensions as a self-supporting box in order to make it possible to make a prefabricated block of insulation that includes both a self-supporting box and a layer of insulating material. It started with the idea of doing.

  Through the following series of descriptions and numerous specific embodiments of the present invention, the present invention will be better understood, and the detailed features and advantages of the present invention will become more apparent. These are used in conjunction with the accompanying drawings for purposes of non-limiting illustration only.

FIG. 1 is a partial perspective view of a spacer structure that can be used in an insulating block. 2 is a cross-sectional view of the insulating block taken along line II-II in FIG. 3 is a cross-sectional view of the insulating block taken along line III-III in FIG. FIG. 4 is a plan view of the insulating block. FIG. 5 is a partial plan view of a pre-cut block of polymer foam. FIG. 6 is a schematic cross-sectional view of a tank wall according to the first embodiment. FIG. 7 is a schematic cross-sectional view of a tank wall according to the second embodiment. FIG. 8 is a schematic cross-sectional view of a tank wall according to the third embodiment. FIG. 9 is a schematic diagram including a cross-sectional view of a tank of a methane tanker having a terminal for loading or unloading the tank.

  Referring to FIG. 1, a spacer structure 1 having a column of columns 2 having a square cross section and an upper plate 3 and a lower plate 5 provided thereon is shown. The struts 2 are evenly spaced from each other, allowing good distribution of the compressive force. An upper lateral reinforcing member 4 having a rectangular cross section is fixed to the support column 2 and the upper plate 3. A lower lateral reinforcing member 6 having a rectangular cross section is fixed to the support column 2 and the lower plate 5. The lower lateral reinforcement 6 and the upper lateral reinforcement 4 improve the rigidity of the spacer structure 1, respectively. Also, they avoid the buckling of the support 2. Such a spacer structure can be made prefabricated, facilitating the manufacture of the insulating block.

2 to 4, an insulating block 20 having seven spacer structures 1 each having nine struts 2 is shown. Two outer spacer structures 12 are arranged at the edge of the insulating block 20, in which the plate and the lateral reinforcement extend only on one side of the column 2, ie only on the inner side of the insulating block 20. Exist. The outer spacer structure 12 includes triangular pillars 13 to provide a space at the corners of the insulating block 20. The lower plate 5 and the upper plate 3 ensure uniform transmission of the force to the strut 2, the cover panel 7 and the bottom panel 8, respectively. Further, the lower plate 5 and the upper plate 3 impart bending strength to the cover panel 7 and the bottom panel 8. The polymer foam 11 fills the space between the spacer structures 1 and the space between the columns 2 of the columns 2 of the spacer structure 1. The polymer foam 11 is a polyvinyl chloride (PVC) foam having a density of 35 kg / m 3 . A layer 10 made of an insulating material is disposed on the outer surface of the bottom panel 8. The layer 10 made of an insulating material is made of a polyurethane (PU) foam having a density of 20 kg / m 3 . A lath 9 prevents creep deformation in the vicinity of the coupler (not shown) and ensures structural continuity.

  FIG. 4 also shows a hole 14 formed in the bottom panel 8 that allows the polymer foam 11 to be injected. Alternatively, the polymer foam 11 can be injected through the side of the insulating block 20.

For example, the support column 2 has a cross-sectional area of 30 × 30 mm 2 , the transverse reinforcing members 4 and 6 have a cross-sectional area of 30 × 21 mm 2 , and the cover panel 7 has a thickness of 21 mm.

  The insulating block 20 can be manufactured by a plurality of methods. According to one embodiment, the insulating block 20 positions a plurality of spacer structures 1 parallel to each other in a cavity of a parallelepiped mold, and the top plate 3 of the spacer structure 1 is on the bottom wall of the mold. Manufactured by placing. The bottom panel 8 is fixed to the lower plate 5 of the spacer structure 1, and a thermal insulating liner 11 is injected into the space between the bottom panel 8 and the bottom wall of the mold to embed the column 2 of the spacer structure 1. The injection can be performed through the side surface of the mold bottom or through the hole 14 formed in the bottom panel 8. Next, the insulating block 20 is turned over, and the cover panel 7 is fixed to the upper plate 3 of the spacer structure 1. Finally, the insulating block 20 is removed from the mold cavity.

  Another embodiment is carried out in the same process as described above, except that the lower plate 5 is placed against the bottom of the mold, the cover panel 7 is secured to the upper plate 3, and the polymeric foam 11 is attached to the cover panel 7 Inject through the hole 14 created in

  Referring to FIG. 5, a pre-cut block of polymer foam 11 is shown. In this embodiment, the polymer foam is not injected during the manufacture of the insulating block 20, but is cut in advance and inserted between the spacer structures 1. The first pre-cut block 21 of the polymer foam is provided with cutouts on both sides for receiving the support pillars 2 of the spacer structure 1. The second pre-cut block 22 of polymer foam is notched on only one side to accommodate only one row of struts. The spacer structure 1 and the pre-cut block 22 are thus alternately stacked until the desired size box is obtained, and then the bottom panel 8 and the cover panel 7 are secured thereto.

  Three embodiments of a liquid-tight insulating tank wall composed of a primary insulating barrier and a secondary insulating barrier each consisting of layers of insulating blocks 20 arranged in parallel will be described with reference to FIGS.

  In the embodiment of FIG. 6, the secondary liquid-tight thin film 15 and the primary liquid-tight thin film 16 are formed of corrugated sheet metal plates welded together. A layer 10 made of an insulating material is provided between the outer surface of the lower plate 5 of the insulating block 20 of the primary insulating barrier and the secondary liquid-tight thin film 15 of the tank wall. The waveform of the secondary liquid-tight thin film 15 can be inserted into parallel grooves formed in the layer 10 made of an insulating material. In practice, these portions of the layer 10 of insulating material facing the flat portion of the secondary liquid-tight thin film 15 between the corrugations can be much wider than the grooves that accommodate the corrugations. For example, the layer 10 made of an insulating material is made of plywood or polymer foam.

  In the embodiment of FIG. 7, the secondary liquid-tight thin film 15 and the primary liquid-tight thin film 16 are formed of corrugated sheet metal plates that are welded together, and the corrugations are all directed toward the insulating barrier that supports the liquid-tight thin film. Yes (reentrant waveform). A layer 10 made of an insulating material is provided between the outer surface of the upper plate 3 of the insulating block 20 of the secondary insulating barrier and the secondary liquid-tight thin film 15 of the tank wall. The reentrant waveform of the secondary liquid-tight thin film 15 can be inserted into parallel grooves formed in the layer 10 made of an insulating material. Similarly, in practice, these portions of the layer 10 of insulating material facing the flat portion of the secondary liquid-tight thin film 15 between the corrugations can be much wider than the grooves that accommodate the corrugations. For example, the layer 10 made of an insulating material is made of plywood or polymer foam.

  In the embodiment of FIG. 8, the secondary liquid-tight thin film 15 and the primary liquid-tight thin film 16 are each provided with a steel outer plate having a low expansion coefficient welded to each other at the upward edges on both sides of the welding support 19. Yes. A layer 10 made of an insulating material is provided between the outer surface of the lower plate 5 of the insulating block 20 of the primary insulating barrier and the secondary liquid-tight thin film 15 of the tank wall. The upward edge of the secondary liquid-tight thin film 15 and the welding support can be inserted into parallel grooves formed in the layer 10 made of an insulating material.

  The insulating block described above can be used in different types of storage tanks, for example to form an insulating barrier for LNG storage tanks on land facilities or in floating facilities such as methane tankers.

  Referring to FIG. 9, a cross-sectional view of a methane tanker 70 shows a liquid-tight insulating tank 71 having a generally prismatic shape mounted on a double hull 72 of a ship. The wall of the tank 71 includes a primary liquid-tight barrier intended to contact the LNG contained in the tank, and a secondary liquid-tight barrier disposed between the primary liquid-tight barrier and the double hull 72 of the ship. And two insulating barriers disposed between the primary liquid-tight barrier and the secondary liquid-tight barrier and between the secondary liquid-tight barrier and the double hull 72, respectively.

  In a known manner, a loading / unloading pipeline 73 provided on the ship's upper deck can be connected to a maritime terminal or a port terminal by means of a suitable connector to move the LNG of the load to or from the tank 71. Can be made.

  FIG. 9 shows an example of a maritime terminal having a loading / unloading station 75, an underwater pipe 76 and an onshore facility 77. The loading / unloading station 75 is a fixed offshore facility having a movable arm 74 and a tower 78 that supports the movable arm 74. The movable arm 74 supports a group of insulating flexible pipes 79 that can be connected to the loading / unloading pipeline 73. The movable movable arm 74 can be adapted to methane tankers of all sizes. A connecting pipe (not shown) extends inside the tower 78. A loading / unloading station 75 allows the methane tanker 70 to load / unload to / from the land facility 77. The land facility 77 has a liquefied gas storage tank 80, a connecting / discharging pipe 81 connected by a loading / unloading station 75 and an underwater pipe 76. The underwater pipe 76 allows liquefied gas to move between the loading / unloading station 75 and the land facility 77 over a long distance of, for example, 5 km, so that the methane tanker 70 during loading / unloading operations. Makes it possible to be far away from the coast.

  In order to generate the pressure required to move the liquefied gas, a pump on board the ship 70 and / or a pump installed in the land facility 77 and / or a pump installed in the loading / unloading station 75 is used.

  While the invention has been described in terms of many specific embodiments, it is quite clear that the invention is not limited thereto, and all the technical equivalents and combinations of the means described are within the scope of the invention. Contained within.

  The use of the terms “comprising”, “consisting of”, “comprising” and variations thereof does not exclude the presence of other elements or steps than those listed in the claims. Use of the terms “a” or “one” for one member or process does not exclude the presence of a plurality of members or a plurality of steps unless otherwise specified.

  In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Claims (18)

  1. An insulating block (20) for manufacturing a liquid-tight insulating tank wall, comprising a bottom panel (8), a cover panel (7), and between the bottom panel (8) and the cover panel (7). A plurality of elongated spacer structures (1) provided on the bottom panel and the cover panel are planar and parallel to each other;
    The spacer structure (1) includes a lower plate (5), an upper plate (3), a row arranged between the lower plate and the upper plate, and fixed to the lower plate and the upper plate. And the lower plate and the upper plate are held in parallel with each other by a row of the columns (2),
    The plurality of spacer structures (1) are provided in parallel with each other by the lower plate (5) fixed to the bottom panel (8) and the upper plate (3) fixed to the cover panel (7). A thermal insulation liner (11) provided between the bottom panel (8) and the cover panel (7), and a space between the columns (2) of the spacer structure (1) An insulating block filling a space between the spacer structures (1).
  2.   The spacer structure has an upper lateral reinforcement (4) positioned along the row of struts (2), the upper lateral reinforcement being on one side of the struts in the row direction and the upper plate The insulating block according to claim 1, wherein the insulating block is connected to (3).
  3.   The spacer structure has a lower lateral reinforcement (6) positioned along the row of struts (2), the lower lateral reinforcement being on one side of the column in the row direction and the lower plate The insulating block according to claim 1 or 2, wherein the insulating block is connected to (5).
  4.   The spacer structure has a pair of upper lateral reinforcements (4) and / or a pair of lower lateral reinforcements (6) located on both sides of the row of columns, respectively. The insulating block according to claim 2 or 3.
  5.   The insulation block according to any one of claims 2 to 4, wherein the transverse reinforcing member is a bar having a square or rectangular cross section.
  6.   Insulation block according to any one of the preceding claims, characterized in that the strut (2) has a square or rectangular cross section.
  7. The insulating block (20) is horizontally closed around the bottom panel (8) and the cover panel (7);
    The insulation block according to any one of claims 1 to 6, wherein the thermal insulation liner (11) is made of pearlite or glass wool.
  8.   The insulating block according to claim 7, wherein the wall closing the lateral direction of the insulating block is made of a glass fiber sheet.
  9.   The insulation block according to any one of claims 1 to 8, wherein the spacer structure (1) is made of wood.
  10. The insulating block (20) comprises an outer spacer structure (12) along its edge;
    10. The outer spacer structure (12) is provided with a triangular support (13) at an end thereof to form a gap at a corner of the insulating block. Insulation block according to.
  11. The insulating block comprises a layer (10) of insulating material;
    The insulating layer (10) is disposed on the outer surface of the bottom panel (8), and has a plurality of parallel grooves to accommodate the protrusions of the liquid-tight thin film. The insulating block according to claim 1.
  12. A method for manufacturing an insulating block according to any one of claims 1 to 11,
    Positioning a plurality of spacer structures (1) in a mold cavity so as to be parallel to each other, and placing the top plate (3) of the spacer structure on the bottom wall of the mold;
    Fixing the bottom panel (8) to the lower plate (5) of the spacer structure;
    Introducing the thermal insulation liner into a space between the bottom panel (8) and the bottom wall of the mold so as to embed the struts of the spacer structure in the thermal insulation liner;
    Turning over the insulating block;
    Fixing the cover panel (7) to the upper plate of the spacer structure and removing the insulating block from the hole of the mold.
  13. A liquid-tight insulating tank having a tank wall held in a load-resistant structure,
    A secondary insulation barrier held by the load-resistant structure in a direction from the outside of the tank toward the inside, and a secondary liquid-tight thin film (15) held by the secondary insulation barrier; A primary insulation barrier held in the secondary liquid-tight thin film, and a primary liquid-tight thin film (16) held in the primary insulation barrier,
    12. The primary insulation barrier and / or the secondary insulation barrier basically comprises a plurality of insulation blocks (20) according to any one of claims 1 to 11, wherein the insulation blocks are juxtaposed in a repeating pattern. A liquid-tight insulating tank characterized by
  14. The secondary liquid-tight thin film (15) comprises corrugated sheet metal plates welded together so as to be corrugated,
    A layer (10) of insulating material is disposed between the outer surface of the bottom panel of the insulating block of the primary insulating barrier and the secondary liquid-tight film of the tank wall;
    In order to accommodate the corrugation of the secondary liquid-tight thin film, the thickness of the layer made of the insulating material is larger than the corrugated height of the corrugated sheet metal plate, and a groove parallel to the layer made of the insulating material is formed. The liquid-tight insulating tank according to claim 13.
  15. The secondary liquid-tight thin film (18) has a low expansion coefficient and consists of a continuous fabric of steel skins welded in a liquid-tight manner at the upward edges to parallel weld supports (19);
    A layer (10) of insulating material is disposed between the outer surface of the bottom panel of the insulating block of the primary insulating barrier and the secondary liquid-tight film of the tank wall;
    The thickness of the insulating material layer (10) is such that the upward edge of the secondary liquid-tight thin film and the weld support so as to accommodate the upward edge of the secondary liquid-tight thin film and the welding support. 14. The liquid-tight insulating tank according to claim 13, wherein a groove that is thicker than a body and parallel to the layer made of the insulating material is formed.
  16.   Ship (70) for transporting a cold liquid product comprising a double hull (72) and an insulating tank (71) according to any one of claims 13 to 15 provided on said double hull. .
  17.   A cold liquid product passes through an insulation pipeline (73, 79, 76, 81) from a floating or land storage facility (77) to the insulation tank (71) of the ship (70) or the insulation tank. Use of a ship according to claim 16 for being transported to the storage facility and loaded or unloaded on the ship.
  18. A ship (70) according to claim 16,
    An insulated pipeline (73, 79, 76, 81) arranged to connect a tank (71) installed in the double hull of said ship to a floating or land storage facility (77);
    A cold liquid product comprising: a pump for transporting a cold liquid product from the floating or onshore storage facility (77) through the insulating pipeline to the insulating tank of the ship or from the insulating tank to the storage facility; System for transporting.
JP2014523361A 2011-08-01 2012-07-20 Insulating block for manufacturing tank walls Active JP6134712B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1157036 2011-08-01
FR1157036A FR2978749B1 (en) 2011-08-01 2011-08-01 INSULATING BLOCK FOR THE MANUFACTURE OF A TANK WALL
PCT/FR2012/051725 WO2013017773A2 (en) 2011-08-01 2012-07-20 Insulating block for manufacturing a tank wall

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JP6134712B2 JP6134712B2 (en) 2017-05-24

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KR (1) KR102092210B1 (en)
CN (1) CN103857954B (en)
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WO (1) WO2013017773A2 (en)

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JP2016520465A (en) * 2013-04-05 2016-07-14 ヒュンダイ ヘビー インダストリーズ カンパニー リミテッド Cargo window of cryogenic material carrier
JP2017530064A (en) * 2014-09-26 2017-10-12 ギャズトランスポルト エ テクニギャズ Sealed insulated container with bridging elements between the panels of the secondary insulation barrier

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FR3017924B1 (en) * 2014-02-21 2016-08-26 Gaztransport Et Technigaz Method and system for inerting a wall of a storage tank of a liquefied fuel gas
CN105711756B (en) * 2014-12-03 2017-11-21 江南造船(集团)有限责任公司 The installation method of the vertical bearing insulation of A type independent liquid cargo tank inside bottom surfaces
CN105711753B (en) * 2014-12-03 2017-12-05 江南造船(集团)有限责任公司 The installation method of A type independent liquid cargo tank top surfaces floatation stopping device insulation
FR3030014B1 (en) * 2014-12-15 2017-10-13 Gaztransport Et Technigaz Insulating block suitable for making an insulating wall in a waterproof tank
FR3037843B1 (en) 2015-06-24 2018-01-05 Gaztransport Et Technigaz Method and device for cutting fibrous or alveola insulating material
WO2019077253A1 (en) 2017-10-20 2019-04-25 Gaztransport Et Technigaz Sealed and thermally insulating tank with several areas

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JP2017530064A (en) * 2014-09-26 2017-10-12 ギャズトランスポルト エ テクニギャズ Sealed insulated container with bridging elements between the panels of the secondary insulation barrier

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FR2978749A1 (en) 2013-02-08
JP6134712B2 (en) 2017-05-24
EP2739896B1 (en) 2018-08-08
WO2013017773A3 (en) 2013-08-08
KR102092210B1 (en) 2020-03-23
CN103857954B (en) 2016-05-04
FR2978749B1 (en) 2014-10-24
CN103857954A (en) 2014-06-11
KR20140049579A (en) 2014-04-25
EP2739896A2 (en) 2014-06-11
WO2013017773A2 (en) 2013-02-07

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