KR102092210B1 - Insulating block for manufacturing a tank wall - Google Patents

Insulating block for manufacturing a tank wall Download PDF

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Publication number
KR102092210B1
KR102092210B1 KR1020147005205A KR20147005205A KR102092210B1 KR 102092210 B1 KR102092210 B1 KR 102092210B1 KR 1020147005205 A KR1020147005205 A KR 1020147005205A KR 20147005205 A KR20147005205 A KR 20147005205A KR 102092210 B1 KR102092210 B1 KR 102092210B1
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KR
South Korea
Prior art keywords
plate
insulating
block
tank
spacer
Prior art date
Application number
KR1020147005205A
Other languages
Korean (ko)
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KR20140049579A (en
Inventor
피에르 장
브루노 구엘튼
미카엘 해리
Original Assignee
가즈트랑스포르 에 떼끄니가즈
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Filing date
Publication date
Priority to FR1157036A priority Critical patent/FR2978749B1/en
Priority to FR1157036 priority
Application filed by 가즈트랑스포르 에 떼끄니가즈 filed Critical 가즈트랑스포르 에 떼끄니가즈
Priority to PCT/FR2012/051725 priority patent/WO2013017773A2/en
Publication of KR20140049579A publication Critical patent/KR20140049579A/en
Application granted granted Critical
Publication of KR102092210B1 publication Critical patent/KR102092210B1/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

As an insulating block 20 for producing a wall of a tight insulating tank, the insulating block 20 is a bottom plate 8, an outer plate 7, and between the outer plate 7 and the bottom plate 8 It comprises a plurality of elongated spacer structures (1, 12) located, the bottom plate and the outer plate are flat and parallel, the spacer structure in each case with the lower plate (5), the upper plate (3) and the lower plate It is disposed between the upper plate and mounted on the lower plate, and includes a row of pillars spaced apart from the lower plate and the upper plate in parallel with each other, and the spacer structures are the lower plate and the outer plate mounted on the bottom plate. Spaced between the pillars 2 of the spacer structure 1 and the spacer structures are disposed in parallel to each other on the top plate mounted to, between the bottom plate and the outer plate The heat-insulating block is arranged heat-insulating liner (11) to fill the space thereof.

Description

INSULATING BLOCK FOR MANUFACTURING A TANK WALL

Field of the Invention The present invention relates to the field of insulated adiabatic tanks, specifically to intimate adiabatic tanks for containing liquids of low or high temperature, and more particularly to intimate adiabatic tanks for storage and / or transportation of liquefied gas.

In the field of marine transportation of liquefied gas, in particular of the transport of gases with a high methane content, tanks with membranes are already known. These tanks are used for holding cold liquids and consist of tank walls maintained on the ship's load-bearing structure, the tank walls being held on the load-bearing structure in the thickness direction from the outside of the tank to the inside. A secondary thermal barrier, a secondary tight membrane maintained on the secondary thermal barrier, a primary thermal barrier retained on the secondary thermal barrier, and a primary thermal barrier retained on the primary thermal barrier. It includes. In FR2877638, the insulating barriers consist essentially of boxes, each of which is arranged in the form of a single layer parallel to the tank wall, with insulating liner and cover panels and bottom panels. And load-bearing elements that rise through the thickness of the insulating liner to absorb compressive forces between them.

In use, the boxes of the tank wall forming the insulating barrier are subjected to compression forces due to the static pressure and dynamic impact of the fluid contained in the tank, and the fluid is specifically moved due to the fluctuation of the ship. Given the risk of rupture and the cost of the work required to replace the box if the underlying box collapses, the boxes must withstand the aforementioned forces for a long lifetime. FR2877638 describes the use of pillars with a small cross section for the size of the insulating element in a plane parallel to the tank wall. This solution allows all compression forces to be transmitted through the pillars. These pillars are likely to dent the outer and bottom plates by punching. In addition, widening the cross-section of the pillars results in further deepening of the thermal bridge between the two outer plates.

DE2441392 describes a tank wall element having a top plate, a bottom plate, and profiled elements. Each profiled element consists of two side plates that extend along the thickness of the tank wall element and are spaced from one another by spacing elements. The element 6 shown in FIG. 2 of the document is an insulating material without mechanical strength, located in the space between the side plates and the spacing elements.

FR2068995 describes an insulating wall structure. The wall structure has wooden support frames. A steel profiled element having a trough-shaped cross section is fixedly attached to the first support frame. The steel profiled element and the second support frame (7c in FIG. 2 of the document) extend in different directions.

According to one embodiment, the present invention provides an insulating block for manufacturing a wall of a tight insulating tank, the insulating block comprising a bottom plate, an outer plate and a plurality of elongated spacers located between the outer plate and the bottom plate ) Structure, the bottom plate and the outer plate are planar and parallel, and the spacer structure is disposed between the lower plate, the upper plate and the lower plate and the upper plate in each case, and the lower plate and the upper plate. Rows of pillars are fixed to the lower plate, and the lower plate and the upper plate are spaced apart from each other and maintained parallel to each other by the rows of pillars. It is fixed to the plate and the upper plate is arranged parallel to each other while fixed to the outer plate , It is disposed a heat insulating liner between the bottom plate and the shell being filled to the space between the space between the spacer structure and the pillar, each of the spacer structure.

According to one embodiment, the spacer structure has an upper lateral reinforcement located along the columns of the row, and the upper lateral reinforcement member is provided on the set of columns and the upper plate of the row. All are connected. According to one embodiment, the spacer structure has a lower lateral reinforcement located along the columns of the row, and the lower lateral reinforcement member is provided on the set of columns and the lower plate of the row. All are connected.

According to embodiments, such an insulating block may have one or more of the following properties.

-The spacer structure has a pair of upper lateral reinforcement and / or a pair of lower lateral reinforcement located on both sides of the columns of the row.

-The upper transverse reinforcement member and the lower transverse reinforcement member are rods having a square or rectangular cross section.

-The pillars have a square or rectangular cross section.

-The insulating liner is made of polymer foam blocks that are cut off. The use of a truncated liner reduces the number of elements to be processed, making it possible to produce insulating blocks faster.

-The insulating block is closed by a transverse closing wall surrounding the bottom plate and the outer plate in the transverse direction, and the insulating liner is made of perlite or glass wool.

-The side closing walls of the block include a sheet of fiberglass.

-The side closing walls of the block are made of plywood.

-The pillars and the transverse reinforcement member are stapled after being adhered.

 -The bottom plate is 9 mm thick.

-The insulating block is provided with outer spacer structures along its end, and the outer spacer structures include triangular pillars at their ends to form clearances at the edges of the insulating block.

The cover may be provided with a plurality of layers. In one preferred embodiment, the plate may have a thickness of 12 to 30 mm.

The spacer structure may be made of various materials, specifically, a damping material such as wood or composite material. This makes it possible to improve the dynamic properties of the block by damping.

According to preferred embodiments, the insulating polymer foam is a polyvinyl chloride (PVC) polymer foam or a polyurethane (PU) polymer foam. In one preferred embodiment, the polyvinyl chloride (PVC) polymer foam has a density of 35 kg / m3.

According to one embodiment, the insulating block comprises a layer of insulating material, the layer of insulating material being disposed on the outer surface of the bottom plate and having parallel grooves for receiving the protrusions of the tight membrane.

Advantageously, this layer of insulating material has notches to allow circulation of nitrogen.

According to embodiments, the present invention also provides a method for manufacturing an insulating block, the method comprising the steps of positioning a plurality of spacer structures parallel to each other within a cavity of a mold, the bottom plate being a bottom plate of the spacer structures Fixing to the field, inserting the insulating liner into the space between the bottom plate and the bottom wall of the mold to embed the pillars of the spacer structures inside the insulating liner, and overturning the block obtained through the above steps Step, fixing the outer plate to the upper plates of the spacer structures, and removing the insulating block from the hole of the mold, the upper plates of the spacer structures are disposed on the bottom wall of the mold.

According to one embodiment, the present invention also provides a tightly insulated tank disposed in a load-bearing structure, said tank comprising a tank wall maintained on a load-bearing structure, said tank wall essentially being said tank From the outside to the inside of the thickness direction, a secondary insulating barrier maintained on the load-bearing structure, a secondary tight membrane maintained on the secondary insulating barrier, and a primary maintained on the secondary tight membrane An insulating barrier, and a primary hermetic membrane retained on the primary insulating barrier, wherein the primary insulating barrier and / or the secondary insulating barrier consists of a plurality of insulating blocks arranged side by side in a repeating pattern. It is characterized by.

According to one embodiment, such a tank may have one of the following characteristics.

-The primary hermetic membrane and / or the secondary hermetic membrane include corrugated sheet metal plates welded together and having corrugated corrugations, one layer of insulating material being formed on the outer surface of the outer plate of the freestanding box and the tank wall Disposed between the primary hermetic membrane and / or the secondary hermetic membrane, wherein the thickness of the insulating material layer is greater than the height of the corrugated corrugated sheet metal plates, the primary hermetic membrane and / or the second Parallel grooves are formed in the layer of insulating material to accommodate the corrugated corrugations of the primary fluid membrane.

-The secondary hermetic membrane comprises corrugated sheet metal plates welded together and having wavy corrugations, one layer of insulating material having the outer surface of the bottom plate of the insulating block of the primary insulating barrier and the tank wall of the Disposed between the secondary hermetic membranes, the thickness of the thermal insulation material layer being greater than the height of the corrugations of the corrugated sheet metal plates and parallel to the thermal insulation material layer to accommodate the corrugations of the secondary fluidic membrane. One groove is formed.

-The secondary hermetic membrane is a continuous web of steel streaks with low expansion coefficient, welded in a tight manner with parallel welding supports by the raised side ends, the primary A layer of insulating material disposed between the outer surface of the bottom plate of the insulating block of the insulating barrier and the secondary, intimate membrane of the insulating wall, the thickness of the insulating material layer being equal to the height of the raised side ends Parallel grooves are formed in the insulating material layer to be larger than the heights of the welding supports of the secondary hermetic membrane and to accommodate the raised side ends and the welding supports of the secondary hermetic membrane.

These tanks are, for example, part of a ground storage facility for LNG storage or are installed on floating shore or offshore structures, specifically methane tankers, floating storage and regasification units (FSRU), floating production, storage and unloading units (FPSO), etc. Can be.

According to one embodiment, the ship for transporting low-temperature liquid products has a double hull and the above-described tank disposed on the double hull.

According to one embodiment, the present invention also provides a method for loading or unloading from such a vessel, in accordance with this method, the low temperature liquid product can be used for floating or land storage facilities and the vessel through an insulated pipeline. Transported between tanks.

According to one embodiment, such ships are used to transport low temperature liquid products between floating or land storage facilities and tanks of said vessels for loading or unloading from said vessels.

According to one embodiment, the present invention also provides a system for transporting a low temperature liquid product, wherein the system is a thermal insulation arranged to connect the above-described vessel, a tank installed on the ship's hull, to a floating or land storage facility. Pipelines, pumps for flowing low temperature liquid products between the floating or land storage facility and the vessel's tank through the insulated pipelines.

One idea underlying the present invention is to provide an insulated self-supporting box having good compressive strength while simultaneously resisting lateral and flexural stresses.

Certain aspects of the invention start with the idea of providing an insulating block through which forces are transmitted uniformly.

Certain aspects of the invention start with the idea of preventing punching of the cover.

Certain aspects of the invention start with the idea of enhancing the bending strength of the covers.

Certain aspects of the invention start with the idea of limiting the risk of column buckling.

Certain aspects of the invention start with the idea of providing an insulating block that is easy to manufacture in an automated manner.

Certain aspects of the invention start with the idea of accommodating protrusions of the membrane in the layer of material by introducing a layer of insulating material between the freestanding box and the tight membrane below it. Certain aspects of the invention start with the idea of modularly producing this layer of material in the same size as the freestanding box so as to assemble an insulating block comprising both the freestanding box and a layer of insulating material.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be better understood and the objects, details, features and advantages of the present invention will become more apparent in the course of describing some specific embodiments of the invention given only by way of non-limiting illustration with reference to the accompanying drawings.

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 cut along line II-II in FIG. 4.
3 is a cross-sectional view of the insulating block cut along line III-III in FIG. 4.
4 is a plan view of an insulating block.
5 is a plan view of a portion of a truncated polymer foam block.
6 is a schematic cross-sectional view of a tank wall according to the first embodiment.
7 is a schematic cross-sectional view of a tank wall according to the second embodiment.
8 is a schematic cross-sectional view of a tank wall according to the third embodiment.
9 is a schematic view of a tank cut in a methane tanker with terminals for loading / unloading from the tank.

Referring to FIG. 1, a spacer structure 1 having a row of pillars 2 having a rectangular cross section is shown, where it can be seen that the upper plate 3 and the lower plate 5 are disposed. The pillars are aligned at equal intervals with each other to distribute the compressive force well. The pillars 2 and the upper plate 3 are fixed with an upper transverse reinforcement member 4 having a rectangular cross section. The pillars 2 and the lower plate 5 are fixed with a lower transverse reinforcement member 6 having a rectangular cross section. The lower transverse reinforcing member 6 and the upper transverse reinforcing member 4 can each improve the strength of the structure. Moreover, they make it possible to avoid buckling of the pillars. These spacer structures are assembled to facilitate production of the insulating block.

Hereinafter, a heat insulating block 20 having seven spacer structures 1 each having nine pillars 2 will be described with reference to FIGS. 2 to 4. Two outer spacer structures 12 are also disposed at the ends of the heat insulating block 20, wherein the plates and the transverse reinforcement member are one side of the pillars 2 in the outer spacer structures 12, that is, It extends only inside the inner block 20. The outer spacer structures include triangular pillars 13 to provide space at the corners of the block 20. The lower plates 5 and the upper plates 3 transmit a uniform force between the pillars 2 and the outer plate 7 and the bottom plate 8, respectively. Moreover, the lower plates 5 and the upper plates 3 provide the bending strength of the outer plate 7 or the bottom plate 8. The polymer foam 11 establishes a space between the spacer structures 1 and between columns of one row of columns 2 of the spacer structure 1. The polymer foam is a polyvinyl chloride (PVC) foam with a density of 35 kg / m3. On the outer surface of the bottom plate 8, a single layer of insulating material 10 is arranged. The insulating material layer 10 is made of polyurethane (PU) foam having a density of 20 kg / m3. Laths 9 prevent creep close to couplers (not shown) and ensure structural continuity.

4 also shows holes 14 formed in the bottom plate 5 to allow injection of the polymer foam 11. Alternatively, the polymer foam 11 may also be injected through the side surfaces of the insulating block 20.

For example, the pillars 20 have a cross-sectional area of 30x30 mm, the transverse reinforcing members 4 and 6 have a cross-sectional area of 30x21 mm, and the outer plate 7 has a thickness of 21 mm.

The insulating block 20 may be manufactured in various ways. According to one embodiment, the insulating block 20 is manufactured by placing a plurality of spacer structures 1 parallel to each other in a cavity of a parallelepiped mold, and the upper plate 3 of the spacer structures 1 They are placed on the bottom wall of the mold. The bottom plate 8 is fixed to the bottom plates 5 of the spacer structures 1, and the heat insulating liner 11 is inserted into the space between the bottom plate 8 and the bottom wall of the mold to thereby space the spacer. Pillars 2 of structures 1 are embedded. The injection may be made through the side or bottom of the mold, or through through holes 14 provided in the bottom plate 8. Then, the block is turned over and the outer plate 7 is fixed to the upper plates 3 of the spacer structures 1. Finally, the insulating block 20 is removed from the cavity of the mold.

Another embodiment is carried out through the same steps as described above, but placing the lower plates 5 against the bottom of the mold, fixing the outer plate 7 to the outer plates 3, the polymer It is performed by injecting the foam 11 through the through hole 14 made of the outer plate 7.

Referring to FIG. 5, it can be seen that the block of the polymer foam 11 is cut. In this embodiment, the polymer foam is not injected while the insulating block 20 is being manufactured, but is cut off to be inserted between the spacer structures 1. Notches for receiving the pillars 2 of the spacer structure 1 are provided on both sides of the first cut polymer foam block 21. The second notched polymer foam block 22 is provided with notches for accommodating only one row of pillars 2 on one side. Accordingly, the spacer structures 1 and the truncated blocks 22 are alternately superimposed until a box having a required size is obtained, and then there, the bottom plate 8 and the outer plate 7 ) Is fixed.

Hereinafter, with reference to FIGS. 6 to 8, three embodiments of the wall of the insulated insulation tank made of the layers of the insulation blocks 20 in which the primary and secondary insulation barriers are respectively arranged side by side will be described.

In the embodiment according to FIG. 6, the secondary hermetic membrane 15 and the primary hermetic membrane 16 are formed from corrugated sheet metal plates welded to each other. One layer of insulating material 10 is located between the outer surface of the bottom plate 5 of the insulating block 20 of the primary insulating barrier and the secondary hermetic membrane 15 of the tank wall. The corrugated wrinkles of the membrane 15 may be inserted into parallel grooves formed in the heat insulating material layer 10. In practice, portions of the layer of insulating material 10 that lean against the planar portions of the membrane 15 between the corrugations may be wider than the grooves that accommodate the corrugations. For example, the insulating material layer 10 is made of plywood or polymer foam.

In the embodiment according to FIG. 7, the secondary hermetic membrane 15 and the primary hermetic membrane 16 are each in the direction of a corrugated sheet metal plate welded to each other and an insulating barrier supporting the hermetic membrane. Oriented wavy folds (re-embedded wavy folds). A layer of insulating material is located between the outer surface of the outer plate of the insulating block 20 of the secondary insulating barrier and the secondary hermetic membrane 15 of the tank wall. The reentrant corrugations of the membrane 15 may be inserted into parallel grooves formed in the insulating material layer 10. Likewise, in practice, portions of the layer of insulating material 10 that lean against the planar portions of the membrane 15 between the corrugations may be much wider than the grooves that accommodate the corrugations. For example, the insulating material layer 10 is made of plywood or polymer foam.

In the embodiment according to FIG. 8, the secondary hermetic membrane 15 and primary hermetic membrane 16 have low coefficients of expansion, and the side ends raised on both sides of the welding support 19 are welded to each other. , Has steel strikes. A layer of insulating material 10 is located between the outer surface of the bottom plate 5 of the insulating block 20 of the primary insulating barrier and the secondary hermetic membrane 15 of the wall of the tank. The raised ends and the welding supports of the membrane 15 may be inserted into parallel grooves formed in the insulating material layer 10.

The insulating blocks described above can be used to form thermal barriers for LNG storage in various types of storage, such as land facilities such as methane tankers or floating structural malls.

Referring to FIG. 9, a cutaway view of the methane tanker 70 is mounted on the double hull 72 of the ship, and shows a tight adiabatic tank 71 having a prism shape as a whole. The wall of the tank 71 is a primary hermetic barrier for contact with LNG contained in the tank, a secondary hermetic barrier disposed between the primary hermetic barrier and the double hull of the vessel, and the primary It has a hermetic barrier and a secondary hermetic barrier and two thermally insulating barriers respectively disposed between the secondary hermetic barrier and the double hull 72.

In a manner known per se, the loading / unloading pipelines 73 arranged on the upper deck of the ship are intended to transport LNG cargo to or from the tank 71 to or from the tank 71 to the marine or port terminal, Suitable connectors can be connected by means.

9 shows an example of an offshore terminal with a loading and unloading station 75, an underwater pipe 76 and a land facility 77. The loading and unloading station 75 is a fixed offshore installation with a mobile arm 74 and a tower 778 supporting the flow angle 74. The flow angle 74 carries a bundle of insulating telescopic pipes 79 that can be connected to the loading / unloading pipelines 73. The orientable flow angle 74 may be provided to suit all sizes of methane tankers. A connecting pipe (not shown) extends inside the tower 78. The loading and unloading station 75 allows the methane tanker 70 to be shipped to and unloaded from the land facility 77. The land facility 77 has connecting pipes 81 connected to the loading or unloading station 75 by a liquefied gas storage tank 80 and an underwater pipe 76. The submersible pipe 76 allows liquefied gas to be transported between the loading or unloading station 75 and the land facility 77, for example, a long distance of 5 km, thereby allowing the methane tanker ( Let 70) be a long distance from the coast.

To generate the pressure required to transport the liquefied gas, pumps provided on the ship 70 and / or pumps provided on the land facility 77 and / or pumps provided on the loading and unloading station 75 are used. .

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and it is usually in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. It is of course possible to perform various modifications by a person having knowledge of, and these modifications should not be individually understood from the technical spirit or spirit of the present invention.

The use of verbs such as “have”, “include”, “consist of” and their complex forms does not exclude the possibility of the existence of other elements or steps listed in the claims. The use of the indefinite article “one” in an element or step description also does not exclude the possibility of multiple pluralities of such elements or steps, unless otherwise specified.

In these claims, reference signs in parentheses should not be construed as limiting the claim.

Claims (19)

  1. As an insulating block 20 for producing a wall of a tight insulating tank, the insulating block 20 is a bottom plate 8, an outer plate 7, and between the outer plate 7 and the bottom plate 8 It includes a plurality of elongated spacer structures (1) located, the bottom plate and the outer plate are flat and parallel,
    The spacer structure 1 is disposed between the lower plate 5, the upper plate 3 and the lower plate and the upper plate, mounted on the lower plate, and spaced apart from the lower plate and the upper plate in parallel with each other. Including a row of pillars (2),
    The spacer structures 1 are disposed parallel to each other, the lower plate 5 is mounted to the bottom plate 8 parallel to the bottom plate 8, and the top plate 3 is the outer plate 7 ) Is mounted on the outer plate 7 in parallel, between the bottom plate 8 and the outer plate 7, the space between the pillars 2 of the spacer structure 1 and each of the spacer structures 1 Insulation block characterized in that the insulation liner 11 is arranged to fill the space between.
  2. According to claim 1,
    The spacer structure has an upper lateral reinforcement (4) disposed along the columns (2) of the row, and the upper lateral reinforcement member is a set of the columns of the row and the upper plate (3). Insulation block, characterized in that connected to.
  3. According to claim 2,
    The upper lateral reinforcement member is a heat-insulating block, characterized in that the rod (rod) having a square or rectangular cross section.
  4. According to claim 1,
    The spacer structure (1) has a lower transverse reinforcing member (6) disposed along the rows of posts (2), the lower transverse reinforcing member having a set of pillars and the lower plate ( Insulation block characterized in that it is connected to 5).
  5. According to claim 4,
    The lower transverse reinforcement member is a heat-insulating block, characterized in that the rod having a square or rectangular cross section.
  6. The method according to any one of claims 2 to 5,
    The spacer structure (1) has a pair of upper transverse reinforcing members (4) and / or a pair of lower transverse reinforcing members (6) disposed on both sides of the columns of the row. .
  7. The method according to any one of claims 1 to 5,
    The pillars (2) are insulating blocks, characterized in that they have a square or rectangular cross section.
  8. The method according to any one of claims 1 to 5,
    The insulating block 20 is closed by a transversely closed wall surrounding the bottom plate 8 and the outer plate 7 in the transverse direction, and the insulating liner 11 is perlite or glass wool. Insulation block, characterized in that consisting of.
  9. The method of claim 8,
    The transverse closed wall of the insulating block 20 comprises a fiberglass sheet.
  10. The method according to any one of claims 1 to 5,
    The spacer structure (1) is an insulating block characterized in that it is produced from wood.
  11. The method according to any one of claims 1 to 5,
    The insulating block 20 includes outer spacer structures 12 provided along its edges, and the outer spacer structures 12 are triangular pillars at the ends to form clearances at the corners of the insulating block. (13) Insulation block characterized in that it comprises.
  12. The method according to any one of claims 1 to 5,
    An insulating block, characterized in that it comprises a layer of insulating material (10) disposed on the outer surface of the bottom plate (8) and having parallel grooves for accommodating the protrusions of the dense membrane.
  13. A method for manufacturing an insulating block according to any one of claims 1 to 5,
    Placing a plurality of spacer structures (1) on their bottom plate (3) on the bottom wall of the mold and placing them parallel to each other in the cavity of the mold,
    Mounting the bottom plate (8) to the bottom plates (5) of the spacer structures,
    Injecting the insulating liner 11 into the space between the bottom plate 8 and the bottom wall of the mold to embed the pillars of the spacer structures into the insulating liner,
    Flipping the block obtained through the above-described steps, and
    Mounting the outer plate (7) to the upper plates of the spacer structures, and
    And removing the insulating block from the cavity of the mold.
  14. A compact insulated tank having a tank wall maintained on a load-bearing structure,
    The tank wall is in a thickness direction from the outside of the tank to the inside, a secondary heat insulating barrier maintained on the load-bearing structure, a secondary airtight membrane 15 maintained on the secondary heat insulating barrier, the 2 A primary insulating barrier maintained on the primary hermetic membrane, and a primary hermetic membrane 16 maintained on the primary insulating barrier, wherein the primary thermal barrier and / or the secondary thermal barrier are plural. Dogs are arranged side by side in a repeating pattern, a compact insulating tank characterized in that it is made of an insulating block according to any one of claims 1 to 5.
  15. The method of claim 14,
    The secondary hermetic membrane 15 comprises corrugated sheet metal plates welded together and having corrugated corrugations,
    The primary insulating barrier further comprises a layer of insulating material 10 disposed between the outer surface of the bottom plate of the insulating block of the primary insulating barrier and the secondary hermetic membrane of the tank wall,
    The thickness of the insulating material layer is greater than the height of the corrugated corrugated sheet metal plates, and the insulating material layer is formed with parallel grooves to accommodate corrugated corrugations of the secondary fluidic membrane. Insulation tank.
  16. The method of claim 14,
    The secondary hermetic membrane 15 comprises a continuous steel strake web that is welded in a tight manner parallel to the welding support via the raised side ends,
    The primary insulating barrier further comprises a layer of insulating material 10 disposed between the outer surface of the bottom plate of the insulating block of the primary insulating barrier and the secondary hermetic membrane of the tank wall,
    The thickness of the insulating material layer 10 is greater than the height of the raised side ends and the welding supports of the secondary hermetic membrane, and the insulating material layer has the raised side ends and the secondary hermetic layer. A compact insulated tank characterized in that parallel grooves are formed to accommodate the weld supports of the membrane.
  17. As a ship 70 for transporting low-temperature liquid products,
    The ship is provided with a double hull (72) and a fluid insulated tank (71) according to claim 14 disposed on the double hull.
  18. As a method of using the ship 70 according to claim 17,
    The cold liquid product is transported through an insulated pipeline (73, 79, 76, 81) between the floating land storage facility (77) and the vessel's tightly insulated tank (71) to be loaded or unloaded from the vessel. How to use the vessel characterized by.
  19. A system for transporting a low-temperature liquid product comprising a ship (70) according to claim 17,
    Insulating pipelines 73, 79, 76, 81 are arranged to connect the insulated, insulated tank 71 installed on the hull of the ship to a floating or land storage facility 77, and the floating or land storage facility And a pump for flowing the low temperature liquid product through the insulating pipelines between the ship's tightly insulating tanks.
KR1020147005205A 2011-08-01 2012-07-20 Insulating block for manufacturing a tank wall KR102092210B1 (en)

Priority Applications (3)

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

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KR102092210B1 true KR102092210B1 (en) 2020-03-23

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JP (1) JP6134712B2 (en)
KR (1) KR102092210B1 (en)
CN (1) CN103857954B (en)
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FR3004512B1 (en) * 2013-04-15 2016-09-30 Gaztransport Et Technigaz Sealed and thermally insulated tank
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
FR3026459B1 (en) * 2014-09-26 2017-06-09 Gaztransport Et Technigaz SEALED AND INSULATING TANK WITH A BRIDGING ELEMENT BETWEEN THE PANELS OF THE SECONDARY INSULATING BARRIER
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
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
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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JP2014521556A (en) 2014-08-28
FR2978749A1 (en) 2013-02-08
EP2739896B1 (en) 2018-08-08
KR20140049579A (en) 2014-04-25
CN103857954A (en) 2014-06-11
FR2978749B1 (en) 2014-10-24
CN103857954B (en) 2016-05-04
EP2739896A2 (en) 2014-06-11
WO2013017773A2 (en) 2013-02-07
WO2013017773A3 (en) 2013-08-08
JP6134712B2 (en) 2017-05-24

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