KR101997936B1 - Insulating element for a sealed and thermally insulating tank wall - Google Patents

Insulating element for a sealed and thermally insulating tank wall Download PDF

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Publication number
KR101997936B1
KR101997936B1 KR1020137026088A KR20137026088A KR101997936B1 KR 101997936 B1 KR101997936 B1 KR 101997936B1 KR 1020137026088 A KR1020137026088 A KR 1020137026088A KR 20137026088 A KR20137026088 A KR 20137026088A KR 101997936 B1 KR101997936 B1 KR 101997936B1
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KR
South Korea
Prior art keywords
insulating
cover panel
edge
tank
flat
Prior art date
Application number
KR1020137026088A
Other languages
Korean (ko)
Other versions
KR20140034767A (en
Inventor
게리 캔레어
피에르 졸리베
Original Assignee
가즈트랑스포르 에 떼끄니가즈
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Publication date
Priority to FR1152339A priority Critical patent/FR2973097B1/en
Priority to FR1152339 priority
Application filed by 가즈트랑스포르 에 떼끄니가즈 filed Critical 가즈트랑스포르 에 떼끄니가즈
Priority to PCT/FR2012/050382 priority patent/WO2012127141A1/en
Publication of KR20140034767A publication Critical patent/KR20140034767A/en
Application granted granted Critical
Publication of KR101997936B1 publication Critical patent/KR101997936B1/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
    • F17C2203/0358Thermal 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352Pipes
    • F17C2205/0355Insulation thereof
    • 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352Pipes
    • F17C2205/0364Pipes flexible or articulated, e.g. a hose
    • 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
    • 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
    • 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

In the enclosed insulation tank wall, the retaining members 31-35 cooperate with the edge pieces of the four insulation elements 13 of the insulation barrier to directly or indirectly retain the four insulation elements to the bearing structure. The cuts at the adjacent edges of the four insulating elements define an opening 50 through the cover panel 14 to provide access to the retaining member. A closing plate 52 is disposed in the opening in alignment with the retaining members 31-35 to complete a substantially continuous, planar bearing surface of the closed membrane. Each cutout of the edge of the cover panel is formed within the thickness of the cover panel 14 and bounded by a flat rim parallel to the top surface of the cover panel 14. [ The closing plate 52 is built so as to be seated on a flat rim.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating element for a wall,

The present invention relates to the field of a sealed thermal insulation tank arranged in a bearing structure for storing fluids, and more particularly to a membrane-lined tank for cold liquids, particularly liquefied gas storage.

BACKGROUND ART [0002] Hermetic thermal insulation tanks arranged in the hull of a vessel for transporting liquefied natural gas (LPG) having a high methane content are known. Such a tank is disclosed, for example, in FR-A-2798902. The insulating caisson includes a cover panel made of plywood. The cover panel is formed inside the thickness thereof and does not have a flat edge parallel to the upper surface of the cover panel. Rather than a closing plate, recesses 111 and 121 are used to accommodate the fasteners.

US-A-3990382 describes another insulating caisson comprising a cover panel made of plywood. The cover panel is formed within the thickness thereof and does not have a flat edge parallel to the upper surface of the cover panel. The opening 7 in Fig. 1 is intended to provide a space through which the tubular member 13 can pass.

According to one embodiment, the present invention is a sealed thermal insulation tank arranged in a bearing structure for storing a fluid, the wall of the tank comprising at least one thermal barrier and at least one hermetic membrane held on the thermal barrier, The insulating barrier comprises at least two opposing sides which are generally rectangular in shape and protrude beyond the corresponding side wall of the insulating element, the insulating panel comprising a set of insulating elements, each of which is a substantially parallelepiped, each comprising a flat cover panel And the edge of the cover panel of the heat insulating element has a cutout formed in the protruding portion of the cover panel, the heat insulating element being juxtaposed such that the protruding side of the cover panel is substantially edge to edge, Forming a substantially continuous, planar bearing surface for the hermetic membrane, And a retaining member, which is directly or indirectly fixed to the bearing structure to hold the four heat insulating elements of the heat insulating barrier directly or indirectly with respect to the bearing structure, The cuts formed in the adjacent edges of the four insulating elements cooperate with the edge pieces of the four insulating elements so as to penetrate the bearing surface in order to provide access to the retaining member Wherein the cut-off portions of the corners of the cover panel are each formed in a thickness of the cover panel and the cover panel is formed in a thickness of the cover panel, And is bounded by a flat rim parallel to the upper surface of the frame, Swaepan provides a closed heat-insulated tank, characterized in that the internal seating such that the flat rim of the adjacent corners of four insulating element.

According to some embodiments, such tanks may have one or more of the following features.

According to one embodiment, the flat edges of the adjacent edges of the four insulating elements completely surround the opening to support the edge of the closure plate over the entire periphery of the closure plate.

According to one embodiment, the cut-off portion of the edge of the cover panel has a re-entrant edge shape, and the flat edge has an L-shaped flat strip extending along two sides of the yaw angle edge.

According to one embodiment, the edge piece of the insulating element comprises a cleat secured to the bottom panel of the insulating element at the edge of the bottom panel protruding beyond the sidewall.

According to one embodiment, the insulating element comprises a bottom panel parallel to and spaced apart from the cover panel, and a box comprising side panels arranged between the bottom panel and the cover panel to define an interior space of the box filled with the heat- Wherein the side webs form side walls of the insulating element and the side webs parallel to the protruding sides of the cover panel have two ends that are respectively aligned with the flat edges of the edges of the cover panel.

This arrangement allows the side web to contribute to the downward force applied by the closure plate under the influence of the tank filling and reinforces the flat rim of the cover panel.

According to one embodiment, the cover panel of the insulating element comprises two overlapping sheets of plywood material, wherein the upper sheet comprises a wider cut than the lower sheet so as not to cover the upper surface portion of the lower sheet of the cover panel at the edge, And the non-formed portion constitutes a flat rim accommodating the closing plate.

Such tanks may, for example, form part of land-based storage facilities for storage of LNG or may be used for water, surface or deep sea structures, in particular liquefied gas transport, water storage and regasification units (FSRU), water production, storage and loading facilities Can be installed.

According to one embodiment, the vessel for transporting the cooled liquid product comprises a double hull and said tank arranged in a double hull.

According to one embodiment, the present invention provides a method of loading / unloading such a vessel, wherein the cooling liquid product is passed from the aquifer or land storage facility to the tank of the ship via the insulating piping, from the tank of the vessel Provides a loading / unloading method that is transported to a waterfront or land storage facility.

According to one embodiment, the present invention provides a cooling liquid product transport system comprising: a vessel having a vessel and a vessel connected to the aquatic or terrestrial storage facility through an insulating piping, To a tank of a ship, a pump for propelling the flow of the cooling liquid product from the tank of the ship to an aquifer or land storage facility.

According to one embodiment, the present invention is a heat insulating element which is a substantially parallelepiped suitable for forming an insulating barrier on the wall of a tank, the insulating element comprising a generally rectangular flat cover panel, Wherein the edge of the cover panel of the heat insulating element has a cutout formed in the protrusion of the cover panel respectively and the side wall corresponding to the two opposing sides of the heat insulating element cooperate with the retaining member Wherein the cut-off portion of the edge of the cover panel is formed within the thickness of the cover panel and bounded by a flat rim parallel to the top surface of the cover panel, The surface of the cover panel where the adjacent edges of the four insulation elements coincide with the edge pieces of the four insulation elements And the flat edges of the adjacent edges of the four insulating elements can accommodate a flat closing plate closing the openings. ≪ RTI ID = 0.0 >Lt; / RTI >

The concept underlying the present invention is to improve the support of a closed membrane by a cover panel of a series of juxtaposed insulating elements.

Certain aspects of the invention start with an idea of extending the top surface of the cover panel to the access region to the insulating element retention member to provide a substantially uniform bearing surface to the sealing membrane. Certain aspects of the invention start from the concept of performing this extension in a manner that is simple and independent of the shape of the retaining member and can withstand pressure.

BRIEF DESCRIPTION OF THE DRAWINGS The foregoing and other objects, features, and advantages of the present invention, as well as other objects, features, and advantages thereof, may best be understood and appreciated by reference to the following description of specific embodiments of the invention, given by way of non- will be.

1 is a partial cutaway view of a tank wall;
2 is an exploded perspective view of a fastener that may be used in the wall of FIG.
3 is a perspective view of the detail V of the wall of Fig.
4 is a schematic cut-away view of a tank for liquefied gas transport lines and a terminal for loading / unloading the tank.

Figure 1 depicts a hermetically sealed wall depicted in a cutaway perspective view to show its structure. Such a structure can be used over a wide surface of various orientations, for example to cover the bottom wall, top wall and sidewalls of the reservoir. Thus, the orientation shown in Fig. 1 is not limited in this respect.

The tank wall is attached to the wall of the bearing structure (1). Regardless of the orientation of the tank wall relative to the earth's gravity field by convention, the position closer to the interior of the reservoir is referred to as the "upper" and the position closer to the bearing structure 1 is referred to as the "lower".

The tank wall comprises a secondary insulation barrier 3, a primary insulation barrier 4 and a primary insulation barrier 4, which are held on the secondary insulation barrier 3, a secondary insulation barrier 2, a secondary insulation barrier 3 held on top of the secondary insulation barrier 2, And a primary sealing barrier 5 that is retained on the primary sealing barrier 5.

The secondary insulation barrier 2 is composed of a plurality of parallelepiped secondary insulation caissons 6 arranged side by side so as to substantially cover the inner surface of the bearing structure 1. Each secondary insulation caisson 6 is made up of a parallelepiped box of plywood material inside which a partition 7 is interposed between a floor panel of plywood and an upper panel 8 of plywood. The bottom wall of the caisson 6 projects laterally along the two short sides of the caisson so that cleats 9 cooperating with fasteners attaching the caisson 6 to the bearing structure are attached to the protrusions at each corner of the caisson do. Each caisson 6 is filled with a heat-insulating particulate material, such as pearlite. The bottom plate of each caisson 6 is seated on the polymeric resin mass 10 which is seated on the bearing structure 1. The polymeric resin mass 10 improves the inconsistency between the ideal surface intended for the bearing structure and the incomplete surface due to manufacturing tolerances and distributes the load of the caisson 6 throughout the bearing structure 1 in a relatively uniform manner . In order to prevent the caisson 6 from being bonded to the bearing structure 1, a paper sheet not shown is inserted between the resin block 10 and the bearing structure 1. The upper panel (8) of the secondary insulation caisson (6) further comprises a pair of parallel grooves (11) which assume a substantially inverted T-shape so as to accommodate a bracket-like weld flange. The portion of the weld flange projecting towards the top of the panel 8 allows the secondary sealing barrier to be secured. The secondary seal barrier consists of a plurality of Invar straps 12 having a thickness of approximately 0.7 mm and having a turned-up edge. A foldable edge of each strut 12 is welded to the weld flange.

A primary insulation barrier consisting of a plurality of primary insulation caissons 13, similar in structure to the secondary insulation caisson 6, is mounted in the secondary enclosure 2. Each primary insulating caisson 13 is composed of a rectangular parallelepiped box of plywood material filled with granular material such as pearlite and lower in height than the caisson 6. The primary insulation caisson 13 also has an interior partition 15, a floor panel and an upper panel 14. The top panel 14 has two grooves 16 having an inverted T-shaped overall shape that likewise accommodates a weld flange (not shown) on which the foldable edge of the primary sealing barrier strap 17 is welded. The spacing between the two grooves 11 or 16 of one same caisson 6 or 13 corresponds to the width of the strake 12 or 17. The spacing between adjacent grooves and adjacent edges of the same caisson corresponds to 1/2 of the width of the strike, so that the strike extends over two adjacent caissons.

The bottom panel of the primary insulation caisson 13 also protrudes on its short side so that the cleat 21 is seated on the projection of the bottom panel to cooperate with the fasteners described below.

Hereinafter, referring to FIG. 2, a fastener used for attaching a primary insulation barrier and a secondary insulation barrier to a bearing structure will be described. The fastener comprises a bushing 22 with the bottom of the bushing welded to the bearing structure 1 at a position corresponding to the clearance space of the corners of the four adjacent secondary insulation caissons 6. The bushing 22 supports a first rod 23 that is screwed to the bushing. The rod 23 passes between adjacent caissons 6. To ensure continuity of the secondary insulation barrier, the space between the caissons 6 is filled with glass filler. A metal bearer 24 is mounted on the rod 23 and grasps the cleat 9 against the bearing structure 1 by means of a nut (not shown). A piece of plywood 25 is mounted on the bearer 24 to serve as a spacing piece between the bearer 24 and the upper bearer 26 and to reduce the thermal bridge to the bearing structure. The wood piece 25 has a housing 28 intended to house the threaded end of the rod 23 and the nut and also has two perforations intended to pass through the fixing screws not shown. The head of each fixing screw is seated on the counter bore 27 provided in the upper bearer 26. [ The height of this arrangement is such that the upper bearer 26 is at the same height as the upper panel 8 of the secondary insulation casings 6.

The upper bearer 26 also has a threaded central bore 29 intended to receive the threaded base 30 of the connector 31. During operation, the threaded base 30 also passes through the perforations formed through the strut 17 of the secondary containment barrier. To re-establish the sealing of the secondary sealing barrier, the connector 31 has a flange 32 whose periphery is welded to the strake 12 around the perforation. The connector 31 is extended by an upper rod 33 to which the upper nut 34 is screwed to grasp the platelet 35 on the cleat 21 of the primary insulating casings 13. One or more washers 36 may be interposed between the upper nut 34 and the platen 35. [ Again, to ensure continuity of the primary insulation barrier, the space between the faces of the primary insulation casings 13 with the cleats 21 is filled with glass filler.

Fig. 3 depicts another detail of the primary insulation barrier provided in the area of the fastener located at the interface between the four adjacent primary insulation caissons 13. Only two caissons (13) have been partially depicted for a simplified description, the other two being symmetrical.

As can be seen, at the two shortest parallel sides of the caisson 13, the bottom panel 40 and the cover panel 14 protrude beyond the side web 45 of the caisson. The cover panel 14 is composed of two overlapping sheets 46, 47. At the corner of the caisson 13, a rectangular cut portion 48 is formed in the lower sheet 47 and a rectangular cut portion 49 of larger size is formed in the upper sheet 46. A rectangular opening 50 centered about the fastener providing access to the nut 34 when the four caissons 13 are disposed in the secondary sealing membrane and a rectangular counter 50 surrounding the four sides of the opening 50. [ A bore 51 is formed. The counter bores 51 are used to arrange and hold the closing plate 52 having the same thickness as the top sheet 46. [ The closing plate 52 serves to complete the upper surface of the primary insulation barrier 4 after the nut 34 is correctly tightened. Thereby providing a substantially uniform bearing surface for receiving the primary containment barrier 5. The closing plate 52 is stably and stably held in place since the counterbore 51 is bearing the upper surface of the lower sheet 47 along the four sides of the opening 50. [

3, line 53 represents the upper edge edge of the side web 45, which is below the counter bore 51 and thus supports the lower sheet 47 of the long side of the counter bore 51. As shown in Fig. As a result, the closure plate 52 remains rigid in such a way as to be able to withstand the pressure present in the running tank much better.

The techniques described above for forming a hermetically sealed wall can be used in various types of reservoirs and can be used to form walls of LNG storage tanks in watercourses such as land installations or methane transport lines.

Referring to FIG. 4, the cut-away view of the methane transport line 70 shows a hermetically sealed thermal storage tank 71 having the entire prismatic shape mounted on the double hull 72 of the ship. The walls of the tank 71 include a primary containment barrier intended to contact the LNG stored in the tank, a secondary containment barrier arranged between the ship's double hull 72 and the primary containment barrier, and a primary containment barrier between the primary containment barrier and the secondary containment barrier And two heat insulating barriers respectively arranged between the secondary hermetic barrier and the double hull 72.

In a manner known per se, loading / unloading piping 73, which is arranged in the upper deck of the vessel for transporting LNG cargo into and out of the tank 71, may be connected to a coast or harbor terminal using an appropriate connector.

4 depicts an example of a coast terminal including a loading / unloading station 75, an underwater pipe 76 and an onshore facility 77. The loading / unloading station 75 is fixed to a coastal facility including a movable arm 74 and a tower 78 supporting the movable arm 74. The movable arm 74 supports a flexible heat insulating pipe bundle 79 that can be connected to the loading / unloading pipe 73. The moveable alignable arm 74 is adapted for all sizes of methane transport lines. An unillustrated connecting pipe extends along the interior of the tower 78. The loading / unloading station 75 allows the methane transport line 70 to be loaded and unloaded into and out of the onshore facility 77. The onshore facility includes a liquefied gas storage tank 80 and a connecting pipe 81 connected to the loading / unloading station 75 by an underwater pipe 76. The underwater pipe 76 allows the liquefied gas to be transported between a loading / unloading station 75 and an onshore facility 77 over a long distance, for example 5 km, and the methane transport line 70 is moved away from the shore during loading / unloading operations Allow them to stay away.

A pump installed in the ship 70 itself and / or a pump installed in the land facility 77 and / or a pump installed in the loading / unloading station 75 are used to generate the pressure required for liquefied gas transportation.

Although the present invention has been described in connection with a number of specific embodiments, it is evident that the present invention is by no means limited thereto and includes all technical equivalents of the described means and combinations thereof.

The use of the verbs "comprise "," include ", and uses thereof does not exclude the presence of elements or steps other than those listed in the claims. The use of the indefinite article "a / an" or "one" in the context of an element or step does not exclude the presence of a plurality of such elements or steps unless otherwise stated.

In the claims, any reference signs between parentheses shall not be construed as indicating any limitation on the scope of the claims.

Claims (10)

  1. An enclosed thermal insulation tank arranged in a bearing structure for storing fluid,
    The wall of the tank comprises at least one insulating barrier (4) and at least one sealing membrane (5) held on the insulating barrier,
    Characterized in that the insulating barrier (4) is constituted by a set of insulating elements (13) which are parallelepipeds each including a flat cover panel (14), the cover panel of the insulating element has a generally rectangular shape and extends over the corresponding side wall Wherein the edge of the cover panel of the heat insulating element has a cut portion formed in a protrusion of the cover panel,
    The heat insulating element (13) is juxtaposed so that the projecting sides of the cover panel are edge to edge, the upper surface of the cover panel forms a continuous plane bearing surface for the sealing membrane (5) Each of which is formed between side walls of the heat insulating element coinciding with the sides,
    Characterized in that retaining members (31-36), which are directly or indirectly fixed to said bearing structure (1) to hold four insulation elements of said insulating barrier directly or indirectly to said bearing structure, Arranged in adjacent edges of adjacent insulating elements (13), cooperating with the edge pieces of said four insulating elements,
    Wherein the edge piece of the insulating element comprises a cleat (21) fixed to the bottom panel (40) of the insulating element at the edge of the bottom panel protruding beyond the side wall,
    The cuts formed in the adjacent edges of the four insulating elements define an opening (50) through the bearing surface to provide access to the retaining member,
    In a sealed thermal insulation tank disposed in said opening such that a closing plate (52) coincides with said holding members (31-36) to complete a continuous plane bearing surface,
    The cutting portions at the corners of the cover panel are formed within the thickness of the cover panel 14 and bounded by a flat rim parallel to the top surface of the cover panel,
    Characterized in that the closing plate (52) is embedded so as to be seated on the flat edges of the adjacent edges of the four insulating elements (13).
  2. 2. The enclosure according to claim 1, wherein the flat edges of the adjacent edges of the four insulating elements are in the form of a closed thermal insulation tank which completely surrounds the opening (50) to support the edge of the closing plate .
  3. 3. The sealed thermal insulation tank as claimed in claim 2, wherein the cut portion of the edge of the cover panel has a rectangular edge shape, and the flat edge has an L-shaped flat strip extending along two sides of the yaw angle edge.
  4. delete
  5. A device according to any one of the preceding claims, characterized in that the insulating element (13) is arranged between the floor panel (40) parallel to and spaced from the cover panel (14) Each of the side webs defining side walls of the box, the side webs defining side walls of the box, the side webs defining an interior space of a box that is arranged to be filled with a heat insulating packing, Wherein the side webs (45) have two ends that are respectively aligned with flat edges of the edges of the cover panel (14).
  6. 4. A method according to any one of claims 1 to 3, wherein the cover panel (14) of the insulating element comprises two overlapping sheets of plywood material, the upper sheet (46) And the uncovered portion constitutes a flat rim for accommodating the closing plate (52).
  7. A cooling liquid product transport vessel (70) having a double hull (72) and a tank (71) according to any one of claims 1 to 3 arranged in said double hull.
  8. A method of loading and unloading a cooling liquid product transportation vessel (70) according to claim 7,
    The cooling liquid product is transported from the water or land storage facility 77 to the tank 71 of the vessel 70 through the insulation pipes 73, 79, 76 and 81 and from the tank of the vessel to the aquatic or terrestrial storage facility And loading and unloading the vessel (70).
  9. A system for transporting cooling liquid products,
    A heat insulation pipe (73, 79, 76, 81) arranged to connect a ship (70) according to claim 7 and a tank (71) provided on the hull of the ship to a water or land storage facility (77) A pump for propelling the flow of cooling liquid product from the water or land storage facility to the tank of the ship through the piping and from the tank of the ship to the aquatic or terrestrial storage facility.
  10. A heat insulating element (13) as a parallelepiped which forms an insulating barrier on a wall of a tank, said insulating element comprising a generally rectangular flat cover panel (14), said cover panel (14) Wherein the edge of the cover panel of the heat insulating element has a cut portion formed in a protrusion of the cover panel,
    The side walls corresponding to two opposite sides of the insulation element 13 support an edge piece which can cooperate with the retaining element and the edge piece of the insulation element is arranged on the edge of the floor panel protruding beyond the side wall, And a cleat (21) fixed to the floor panel (40)
    The cut portions of the edges of the cover panel are formed within the thickness of the cover panel 14 and bounded by flat edges parallel to the upper surface of the cover panel,
    The heat insulating element 13 is arranged to define an opening 50 through the surface of the cover panel in which the adjacent edges of the four insulating elements coincide with the edge pieces of the four insulating elements, Lt; RTI ID = 0.0 > 13, < / RTI &
    Wherein the flat edges of the adjacent edges of the four insulating elements are capable of receiving a flat closing plate (52) closing the opening (50).
KR1020137026088A 2011-03-23 2012-02-23 Insulating element for a sealed and thermally insulating tank wall KR101997936B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1152339A FR2973097B1 (en) 2011-03-23 2011-03-23 Calorifying element for waterproof and thermally insulating tank wall
FR1152339 2011-03-23
PCT/FR2012/050382 WO2012127141A1 (en) 2011-03-23 2012-02-23 Insulating element for a sealed and thermally insulating tank wall

Publications (2)

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KR20140034767A KR20140034767A (en) 2014-03-20
KR101997936B1 true KR101997936B1 (en) 2019-07-08

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KR (1) KR101997936B1 (en)
CN (1) CN103492784B (en)
AU (1) AU2012230164B2 (en)
FR (1) FR2973097B1 (en)
WO (1) WO2012127141A1 (en)

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FR3070747A1 (en) * 2017-09-04 2019-03-08 Gaztransport Et Technigaz SEALED AND THERMALLY INSULATING TANK WITH AN ANTI-CONVECTIVE COVER STRIP
FR3074560A1 (en) 2017-12-04 2019-06-07 Gaztransport Et Technigaz Sealed and thermally insulated tank
FR3077115A1 (en) 2018-01-23 2019-07-26 Gaztransport Et Technigaz SEALED AND THERMALLY INSULATED TANK.
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FR3082593A1 (en) 2018-06-13 2019-12-20 Gaztransport Et Technigaz Waterproof tank provided with a corrugated junction element
FR3082594A1 (en) 2018-06-13 2019-12-20 Gaztransport Et Technigaz Waterproof and thermally insulating tank
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CN103492784B (en) 2016-01-13
FR2973097B1 (en) 2013-04-12
AU2012230164A1 (en) 2013-10-17
WO2012127141A1 (en) 2012-09-27
AU2012230164B2 (en) 2017-07-06
CN103492784A (en) 2014-01-01
KR20140034767A (en) 2014-03-20
FR2973097A1 (en) 2012-09-28

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