JP2021501858A - Sealed insulation tank - Google Patents

Abstract

In the present invention, the insulation barrier comprises a row of corner structures (30), these corner structures including a two-plane insulation block (31) and a metal angle section (32), said row. Two consecutive corner structures of the above are arranged such that a space (38) exists between them, which is at least partially covered by a protruding portion (53) of the metal angle section. The support surface holds the anchor member (45) disposed between the two-plane insulation blocks of the two corner structures, and the notch (54) formed in the protruding portion of the metal angle section. The present invention relates to a closed heat insulating tank forming access to the anchor member (45). [Selection diagram] Fig. 4

Description

The present invention relates to the field of hermetically sealed insulation tanks for storing and / or transporting fluids such as cryogenic fluids.

Sealed insulation tanks are particularly used for the storage of liquefied natural gas (LNG) stored at about -162 ° C at atmospheric pressure. These tanks can be installed on land or on floating structures. In the case of a floating structure, the tank may be for transporting liquefied natural gas or for receiving liquefied natural gas used as a fuel for propelling the floating structure.

It is incorporated into a load-bearing structure that has a substantially polyhedral inner surface, and is provided with a secondary insulation barrier, a secondary sealing barrier, a primary insulation barrier, and a primary sealing barrier continuously in the thickness direction. Various techniques are known for constructing sealed insulation tanks.

The secondary insulation barrier is basically composed of secondary insulation blocks arranged side by side on the inner surface of the polyhedron of the load bearing structure, and the secondary sealing barrier is a corrugated metal arranged on the inner surface of the secondary insulation block. Composed of membranes, the primary insulation barriers are arranged side by side on the secondary metal film and are basically composed of primary insulation blocks fixed to the secondary insulation barrier by anchor members held by the secondary insulation blocks. Tank walls in which the primary sealing barrier is composed of a corrugated metal film placed on the inner surface of the primary insulation block are known, for example, from WO 2014/1672214 or WO 2017/006044. ing. Along the ridgeline of the load-bearing structure, the primary and secondary insulation blocks are composed of prefabricated corner structures.

Next, a specific aspect of the present invention will be described with reference to FIG. FIG. 1 shows a portion of an adiabatic barrier, which is essentially composed of adiabatic blocks arranged side by side on a support surface 1 of a polyhedron having two flat regions 2 and 3 that meet at a ridge 4. An angle is formed between the two flat regions 2 and 3. The insulation block is arranged along the ridgeline and is supported on each side of the corner structure 5 having two surfaces parallel to each of the two flat regions 2 and 3, respectively. Includes a flat insulating panel 6 arranged on a flat area of the surface.

As can be seen in FIG. 1, when the flat insulation panel 6 is first assembled, there is a space where the corner structure 5 cannot be placed along the ridgeline, as indicated by the arrow 7. Problems can arise. As a result, it may be preferable to build an adiabatic barrier by finishing the flat area. However, once the corner structure 5 is arranged along the ridgeline, the entire area of the support surface in the vicinity of the ridgeline 4 is no longer accessible.

Furthermore, in order to reduce manufacturing costs, it is preferable to manufacture the insulation barrier with standardized insulation blocks as much as possible. However, the manufacture of large load-bearing structures, such as the hull of a ship, is subject to large dimensional tolerances of, for example, several centimeters, and therefore it is not possible to fully plan the dimensions of the tank prior to construction. As a result, depending on the actual dimensions of the load bearing structure, it may be necessary to manufacture at least some insulation blocks to the measured dimensions.

One idea behind the present invention is to propose a closed insulated multilayer tank that makes it easier to tolerate at least some of the above constraints. Another idea behind the present invention is to provide a sealed insulating multilayer structure that can be easily manufactured on a large surface.

To this end, the present invention is a closed insulation tank for storing fluids.
It includes an adiabatic barrier and a sealing barrier disposed on the inner surface of the adiabatic barrier, wherein the adiabatic barrier is disposed, for example, substantially on a support surface of a polyhedron holding the anchor member, by the anchor member. Retained on a support surface, the support surface has at least two flat regions, the at least two flat regions forming an angle between and meeting in a ridge region.
The adiabatic barrier is a row of corner structures arranged along the ridgeline region of the support surface and flats arranged on the flat region of the support surface on both sides of the row of corner structures. Insulation panel and
At least one or each of the corner structures
It has two surfaces that are parallel to each of the flat regions and form an angle between them, and the surfaces or each surface is flat pressed against the corresponding flat region of the support surface. A biplanar insulation block comprising a smooth outer surface and a flat inner surface parallel to the corresponding flat region and separated from the flat outer surface in the thickness direction.
In order to form the sealing barrier aligned with the ridgeline region of the support surface, the biplanar insulation block is fixed to the flat inner surface of the biplane insulation block and from the biplane insulation block along the direction of the ridgeline region. Including a metal angle section that also has a protruding part,
The two consecutive corner structures in the row are arranged so that a space along the direction of the ridge region exists between the two-plane heat insulating blocks, and the space is the two continuous corner structures. At least partially covered by the protruding portion of the metal angle section of at least one of the objects.
The support surface provides a closed insulation tank that holds one anchor member disposed between the two-plane insulation blocks of the two corner structures.

Therefore, anchor members can be used to hold elements of the insulation barrier on the support surface, for example a flat insulation panel adjacent to a row of corner structures or a two-plane insulation block of rows of corner structures. it can.

According to some embodiments, such a tank can include one or more of the following features:

According to one embodiment, at least one of the two continuous corner structures is the anchor member disposed between the two-plane insulation blocks to form access to the anchor member. It has a notch made in the protruding portion of the metal angle section aligned with.

Thanks to such notches, after arranging rows of corner structures, the presence of protrusions on one or both metal angle sections that at least partially cover the space between the two biplanar insulation blocks. Nevertheless, the anchor member located between the two biplanar insulation blocks is still accessible. This access makes it possible to easily act on the anchor member from the inner surface of the angle section, for example with a screwing tool.

The overhangs of the metal angle sections make it possible to limit the space between the metal angle sections of the continuous corner structure, thus facilitating the sealing closure of the sealing barrier by the closing parts and closing these. Improves the overall installation of parts and sealing membranes. The metal angle section can have a protrusion at only one end, or it can have two protrusions at two opposite ends along the direction of the ridge region. The notches formed in alignment with the anchor member can extend into the overhangs of a single metal angle section or the two opposite overhangs of two consecutive metal angle sections.

According to one embodiment, the space is partially covered by two opposing protrusions, each belonging to the metal angle section of the two continuous corner structures, and the two protrusions facing each other. Each of the portions comprises a notch made aligned with the anchor member. These features provide a satisfactory size of access at each of the two overhangs, using a relatively small cross-sectional notch that limits the effect of the notch on the mechanical strength of the metal angle section. Can be formed.

According to one embodiment, the metal angle section of the corner structure has two overhangs protruding from the biplanar insulation block at the two opposite ends of the metal angle section along the direction of the ridge region. Has. Due to these features, the corner structures can be configured identically, thus reducing manufacturing costs.

According to one embodiment, the notch or each notch is made at the edge of the overhang that is lateral to the ridge region. These features facilitate the manufacture of notches.

According to one embodiment, the metal angle section connects the two surfaces of a two-plane insulation block to each other.

According to one embodiment, the anchor member arranged between the two-plane insulation blocks of the two consecutive corner structures engages the two-plane insulation blocks of the two corner structures. Hold the flat insulation block on the support surface.

In this case, the anchor member
Studs that are fixed to the support surface and project inward into the space between the two-plane insulation blocks,
A retainer rod mounted on the stud and having two lateral portions each engaged with two biplanar insulation blocks.
It can include a nut that is screwed into the stud and pushes the retainer rod towards the support surface.

According to one embodiment, the presser bar has a slot through which the stud passes, and thus the presser bar is pressed when the nut is not pushing the presser bar.
A retracted position in which the retainer is housed in the space between the biplanar insulation blocks of the two continuous corner structures in order to leave space for the flat isolated panel.
• With respect to the ridge region, the second portion extends from the biplanar insulation block in a direction opposite to the ridge region due to engagement with the flat insulation panel. Can be slid sideways,
The nut can stop the slide of the pressing rod by pushing the pressing rod toward the supporting surface.

According to one embodiment, the anchor member disposed between the two-plane insulation blocks of the two continuous corner structures engages a flat insulation panel adjacent to a row of the corner structures. Then, the flat heat insulating panel is held on the support surface.

These features make it possible for one or more anchor members located between continuous corner structures to secure a flat insulating panel adjacent to a row of corner structures. This configuration simplifies the placement and mounting of anchor members, especially when flat insulation panels adjacent to rows of corner structures need to be manufactured to the measurement dimensions and therefore cannot be standardized. To do.

This configuration is provided by a secondary barrier whose support surface is composed of a secondary corner structure and a flat secondary insulation panel, with these anchor members, especially on the secondary corner structure. It also has the advantage that it can be placed relatively close to the ridge area. These flat secondary insulation panels can be measured more easily because the flat secondary insulation panels adjacent to the secondary corner structure do not need to hold these anchor members for the flat primary insulation panels. It can be manufactured according to the dimensions.

In this case, the anchor member is
A stud that is fixed to the support surface and projects inward into the space between the two-plane insulation blocks.
A first portion mounted on the stud and facing the ridge region projects from the biplanar insulation block in a direction opposite to the ridge region and engages with the flat insulation panel. With a holding rod having a second part,
It may include a nut that is screwed into the stud and pushes the retainer rod towards the support surface.

According to one embodiment, the flat insulating panel adjacent to the row of corner structures comprises a layer of insulating polymer foam sandwiched between a rigid lower sheet and a rigid cover sheet. The rigid cover sheet and the insulating polymer foam layer are formed to the thickness of the insulating panel and have recesses that expose the supporting area on the inner surface of the rigid lower sheet, the recesses being formed in the ridgeline region. Appearing on the edges of the parallel flat insulation panels and facing the row of corner structures, the anchor member, in particular the second portion of the retainer bar, engages the support region of the lower sheet. To do.

According to one embodiment, the recess formed to the thickness of the heat insulating panel is a notch oriented perpendicular to the edge of the flat heat insulating panel. Such notches can be formed at various locations, eg, at the edges of the edges of a flat insulation panel facing a row of corner structures and / or at the center of this edge of the flat insulation panel. can do.

According to one embodiment, the flat insulating panel has a rectangular parallelepiped shape, and the recesses are formed at the corners of the flat insulating panel.

According to one embodiment, the support surface holds a plurality of anchor members distributed along the ridgeline region, and each of the plurality of anchor members is a two biplanar heat insulating block of a continuous square structure. The flat insulation panel is held on the support surface by engaging with each region of the flat insulation panel adjacent to the row of the corner structures.

According to one embodiment, the support surface includes a third flat region that is lateral to the ridge region at one end of the ridge region, with the last corner structure in the row of corner structures. In addition to the two-plane insulation block, a third surface parallel to the third flat region and forming an angle with the two surfaces of the two-plane insulation block is included.
The metal angle section of the last corner structure extends over the flat inner surface of the third surface to form the sealing barrier aligned with the end of the ridge region of the support surface. The metal angle section connects the third surface to the biplanar insulation block, and the protruding portion of the metal angle section is the penultimate corner of the row of corner structures. It projects toward the partial structure in a direction opposite to that of the third surface.

According to one embodiment, the biplanar heat insulating block of the penultimate corner structure in the row of corner structures is compared to the corner structure located in the central portion of the ridge region. The metal angle section of the penultimate corner structure is juxtaposed along the direction of the ridge region and has a large dimension along the direction of the ridge region. It consists of two angled portions fixed to a flat inner surface.

According to one embodiment, the first angle portion of the penultimate corner structure provides an orifice for passing an anchor member that functions to secure the biplanar insulation block onto the support surface. The second angle portion of the penultimate corner structure having and located on the side of the end of the ridge region has a continuous surface.

These features allow the penultimate corner structure to be adjusted very easily to the dimensions of the support structure along the direction of the ridge region, allowing manufacturing tolerances for this support structure. ..

According to one embodiment, a block of insulating material is arranged between the protruding portion of the metal angle section and the supporting surface in the space between the two-plane insulating blocks. According to one embodiment, the block of insulating material is located between the notch formed in the protruding portion of the metal angle section and the anchor member disposed between the biplanar insulating blocks. Has a passage. Such passages still allow access to the anchor member even after placing the block of insulation material, thus facilitating the assembly of the tank wall.

According to one embodiment, the sealing barrier is located across the metal angle sections of the two continuous corner structures and between the metal angle sections of the two corner structures. Includes closed parts that provide a sealed connection
The closure covers a gap located between the metal angle sections and the protrusions or notches in each of the protrusions that cover the space between the two-plane insulation blocks.

According to one embodiment, the sealing barrier aligned with one flat region of the support surface or each flat region has a waveform parallel to the ridge region, a waveform perpendicular to the ridge region, and the waveform. One edge of the metal film, including a metal film having a flat region located between, and parallel to the ridgeline region, is welded to the metal angle section of the continuous corner structure and said ridgeline. The waveform perpendicular to the region aligns with the gaps located between the metal angle sections of the continuous corner structure.

According to one embodiment, the closed part has a waveform perpendicular to the ridge region aligned with the waveform of the metal film and the metal angle section of the two corner structures located on both sides of the waveform. Includes two flat sections, each welded to.

The above features are used to build an adiabatic barrier built directly on a load-bearing structure that provides a support surface, or to build a primary adiabatic barrier that is built on an existing secondary barrier that provides the support surface. be able to.

According to one embodiment, the adiabatic barrier is a primary adiabatic barrier, the sealing barrier is a primary sealing barrier, and the tank further comprises a secondary adiabatic barrier forming the support surface, the secondary. The inner surface of the substantially polyhedron of the adiabatic barrier is covered by a secondary sealing barrier.

Such tanks can form, for example, part of an onshore storage facility for storing LNG, or coastal or offshore floating structures, especially methane transport vessels, floating storage and regassing units. Can be installed in (FSRU), floating production, storage, and shipping units (FPSOs), or other structures.

According to one embodiment, a vessel for transporting cold liquid products includes a double hull and the tanks described above arranged on the double hull.

Further, according to one embodiment, the present invention is a method for loading or unloading such vessels.
It provides a method of transporting fluid from a water or land storage facility through an insulating pipe to a ship's tank, or from a ship's tank to a water or land storage system.

Further, according to one embodiment, the present invention is a system for transporting a fluid.
The above-mentioned vessels, insulation pipes arranged to connect tanks installed inside the vessels to water or land storage facilities, and fluids from the vessels from the water or land storage facilities through the insulation pipes. Provided is a system including a pump for carrying to a tank or from a ship's tank to a water or land storage system.

Further, according to one embodiment, the present invention is a method for manufacturing the above-mentioned closed insulation tank.
Steps to prepare the support surface and
Steps to assemble the anchor member on the support surface,
A step of assembling a row of corner structures along the ridge region of the support surface such that the anchor member is placed between two consecutive corner structure biplanar insulation blocks of the row.
The anchor member is accessed through a notch made in the protruding portion of the metal angle section aligned with the anchor member to bring the anchor member into an engaged state that holds the element of the insulating barrier on the support surface. Provides a method that includes steps to do.

The present invention is more clearly understood from the following description of some specific embodiments of the present invention, which are presented as examples which are not limited to the present invention with reference to the accompanying drawings. , Features, and benefits will become more apparent.
FIG. 5 is a schematic cross-sectional view of a ridgeline of a modular adiabatic barrier comprising a generally parallelepiped module on a polyhedral support surface. It is a perspective view in the corner region of the tank of the wall of a closed insulation tank, and the primary sealing membrane is omitted. Although the primary corner structure is omitted, the flat primary insulation panel adjacent to the primary corner structure is similar to FIG. 2 shown. FIG. 3 is an enlarged perspective view showing a row of primary angle structures for different angle values in a cross section along line IV-IV of FIG. It is an enlarged perspective view of the detail of the row of the primary corner structure. Top view of the wall of a closed insulation tank in the corner region of the tank, showing the location of the flat insulation panel when the retainer bar is stowed. It is a perspective view which shows the arrangement of the secondary corner structure at the intersection between three walls of a tank. It is a perspective view which shows the arrangement of the primary corner structure on the secondary corner structure of FIG. It is a perspective view of the tank at the intersection between the three walls of the tank, showing a part of the primary sealing membrane and a flat primary insulation panel. FIG. 9 is a view similar to FIG. 9, showing a primary sealing film covering a flat primary insulation panel. It is a perspective view in the corner region of the tank of the wall of a closed insulation tank according to another embodiment, and the sealing membrane is omitted. It is a schematic cut-out view of a methane transport tank and a terminal for loading / unloading to this tank.

By convention, the terms "outside" and "inside" are used to define the position of one element with respect to another with respect to the inside and outside of the tank.

The multi-layer structure of a closed insulation tank for storing liquefied natural gas will be described below. Each wall of the tank is provided by a secondary insulation barrier with a juxtaposed secondary insulation element secured to the load support structure by a secondary anchor member from the outside to the inside of the tank, and a secondary insulation element. A liquefied natural material held by a retained secondary sealing film, a primary insulation barrier with juxtaposed primary insulation elements fixed to the secondary insulation element by a primary anchor member 19, and a primary insulation element held in a tank. It is provided with a primary sealing film suitable for contact with gas.

The load-bearing structure can be constructed, in particular, of a self-supporting thin metal sheet, and more generally of any kind of rigid partition having suitable mechanical properties. The load-bearing structure may be formed, in particular, by the hull or double hull of the ship. The load-bearing structure includes a plurality of walls that define the overall shape of the tank, which is usually polyhedral in shape.

Flat areas of the tank can be manufactured in a variety of ways, eg, according to WO 2016/0464887 or WO 2017/006044. The corner region of the tank along the ridge of the load bearing structure will be described in more detail below.

2 and 3 show the structure of the tank wall at the ridgeline 10 between the first load bearing wall 11 and the second load bearing wall 12.

In the illustrated embodiment, the angle formed between the first load support wall 11 and the second load support wall 12 is about 90 °. However, the angle can have any other value, such as about 135 °.

The secondary insulation barrier includes a row of secondary corner structures 13 arranged along the ridgeline 10, with only one secondary corner structure 13 shown in FIGS. 2 and 3. The secondary sealing film 15 arranged on the secondary corner structure 13 and its inner surface 14 can be manufactured in various ways, for example, in accordance with International Publication No. 2017/006044 pamphlet.

Here, the secondary corner structure 13 includes, for example, a sandwich structure composed of a layer of a heat insulating polymer foam 16 sandwiched between two rigid sheets 17 and 18 made of plywood. The inner sheet 18 has a network of vertical grooves 19 for receiving the waveform 24 of the secondary sealing film 15. The corrugations 24 project toward the outside of the tank towards the load bearing structure, each of which is received in the groove 19.

In one variant not shown, the corrugation of the secondary encapsulant membrane is oriented towards the inside of the tank.

Further, the inner sheet 18 is made of a plurality of metal plates 20 made of, for example, stainless steel or an alloy having a small coefficient of thermal expansion, particularly from Invar®, in order to fix the edge of the secondary sealing film. Be prepared. The metal plate 20 is attached to a recess formed in the inner sheet 18 and is secured to the inner sheet 18 using, for example, screws, rivets, or clips. Alternatively, the metal plate 20 is fixed directly onto the insulating polymer foam layer 16 by, for example, adhesion.

Further, the inner sheet 18 also includes a fixing plate 21 for fixing the primary corner structure 30 to the secondary corner structure 13. The fixing plate 21 is adhered to, for example, the inner sheet 18, and / or is fixed to the inner sheet 18 using, for example, screws, rivets, or clips.

Further, the secondary sealing film 15 has a plurality of orifices through which an anchor member capable of fixing the primary corner structure 30 can be passed. The cap nut 22 has a thread that passes through each orifice and engages with a screw hole 23 formed in one of the fixing plates 21 on its outer circumference. In addition, the cap nut 22 has a threaded blind hole for receiving a stud for fixing the primary corner structure 30. Further, the cap nut 22 has a collar, and the secondary sealing film 15 can be sandwiched between the collar and the fixing plate 21. The periphery of this collar is welded to the secondary sealing film 15 to ensure sealing.

The primary insulation barrier includes a plurality of primary corner structures 30 along the ridgeline 10 of the tank. The primary corner structure 30 is a pre-assembled assembly comprising a two-plane insulation block 31 and an angle section 32. The biplanar heat insulating block 31 has an inner surface on which the angle section 32 is placed and an outer surface that abuts on the secondary sealing film 15. The biplanar heat insulating block 31 has a composite structure in its thickness, that is, the layer 33 of the heat insulating polymer foam is sandwiched between two plywood sheets 34, 35, and the plywood sheets 34, 35 include. It is adhered to the polymer foam layer 33.

The angle section 32 is a metal angle section made of, for example, stainless steel. The angle section 32 has two flanges that abut the inner surface of the biplanar insulation block 31. Each flange of the angle section 32 is welded to the outer surface of this flange and towards the inside of the tank to secure the angle section 32 to the biplane insulation block 31 before assembling the primary corner structure 30 into the tank. It has a protruding stud (not shown).

Further, each flange of the angle section 32 has an inner surface with a stud 36 projecting inward of the tank. The stud 36 allows the welding equipment to be fixed when the primary sealing film element is welded to the angle section 32.

As described in WO 2017/006044, the angle section 32 is a stud held by a plate 21 to secure the primary corner structure 30 to the secondary corner structure 13. (Not shown) includes orifices 37 that allow nuts to be attached, eg, the number of orifices 37 is eight per angle section 32.

As can be seen more clearly in FIGS. 2 and 4, the primary corner structure 30 is arranged on the secondary corner structure 13 in the form of a row extending along the ridge line 10. In this row, the two consecutive primary corner structures 30 have a space 38 between the two biplanar insulation blocks 31. Generally, the insulation joint element 39 is inserted into the space 38 between the two biplanar insulation blocks 31 to provide insulation continuity.

In at least some of the spaces 38, the secondary corner structure 13 can hold an anchor member for engagement with the primary insulation element. This case will be described more specifically with reference to FIGS. 3 to 5. This half-cut view is sufficient to understand the structure of the anchor element, as the anchor element as a whole is cut along the symmetrical central plane in FIG.

In this embodiment, the anchor member includes a plate 40 fixed to the inner surface of the secondary corner structure 13 between the two plates 21. The plate 40 can be fixed to the secondary corner structure 13 in various ways, similar to the plate 21. The plate 40 has a screw hole 41 for receiving the cap nut 42 shown in the half-cut view of FIG. The plates 40 can be aligned in each space 38, or can be aligned in a portion of space 38, such as one of three.

The cap nut 42 has a thread 43 on the outer circumference that passes through an orifice of a secondary sealing film (not shown) and engages with a screw hole 41 formed in the plate 40. In addition, the cap nut 42 has a dead end screw hole 44 that accepts the stud 45. Further, the cap nut 42 includes a collar 46, and a secondary sealing film can be sandwiched between the collar and the plate 40. The periphery of this collar is welded to the secondary sealing film 15 to ensure sealing.

As seen in FIG. 4, the stud 45 projects inward of the space 38 between the two biplanar insulation blocks 31 and functions to secure the retainer rod 50 oriented perpendicular to the ridge line 10. Here, the holding rod 50 has a U-shaped cross section, and the base thereof faces the load-bearing structure. When assembled as shown, the first portion of the retainer rod 50 extends into the space 38 between the two biplanar insulation blocks 31 and has a slot 58 through which the stud 45 passes. A nut 47 screwed into the stud 45 allows the retainer rod 50 to be pushed toward the inner surface of the secondary corner structure 13.

The second portion 51 of the retainer rod 50 projects beyond the row of primary corner structures 30 in order to push the flat primary insulation panel 29 adjacent to the row of primary corner structures 30. The length of the slot 58 makes it possible to adjust the length of the second portion 51 that protrudes from the row of primary corner structures 30.

Preferably, the slot 58, whose two ends 58a and 58b are shown in the cross-sectional view of FIG. 4, retracts the retainer rod 50 completely into the space 38 between the two biplanar insulation blocks 31. Long enough to be able to. Therefore, before tightening the nut 47, this retracted position facilitates the installation of the flat primary insulation panel 29 by completely leaving the retainer bar 50 at the location indicated by the alternate long and short dash line in reference sign 99 (FIG. It is possible to slide between (shown in 6) and the extension position shown in FIG. The movement of extending the presser bar 50 is indicated by arrow 98 in FIG.

In one embodiment, the length of the flat primary insulation panels 29 is equal to 9 times the width of the primary corner structure 30 and is therefore located three times the width of the primary corner structure 30 apart from each other. The four retainers engage the flat primary insulation panel 29 at the edge of the flat primary insulation panel 29 facing the ridge, i.e. the two retainers 50 are at both ends of the edge, i.e. flat. Located at the two corners of the primary insulation panel 29, the two retainers 50 are located in the central region of the edge of the flat primary insulation panel 29. This central region is shown in FIG.

As partially shown in FIG. 3, the flat primary insulation panel 29 has a generally rectangular parallelepiped shape with longitudinal edges 26 parallel to the ridge 10. The flat primary insulation panel 29 is composed of, for example, a composite composed of a layer of insulating polymer foam sandwiched between a solid lower sheet (only the exposed area 28 of which can be seen) and a solid cover sheet 25. Has a structure. A notch 27 is formed in the rigid cover sheet 25 and the insulating polymer foam layer, aligns with the plate 20 and extends perpendicular to the ridge line 10 and appears at the longitudinal edge 26 to cover the exposed area 28 of the rigid lower sheet. Expose.

Once assembled, the second portion 51 of the presser bar 50 fits into the notch 27 and optionally presses the exposed area 28 of the solid lower sheet with a shim 48. Another shim 49 can be inserted between the other end of the retainer rod 50 and the secondary membrane (not shown). The shims 48 and 49 are sized to ensure that the retainer bar 50 and the lower sheet of the flat primary insulation panel 29 are parallel to each other. The shim is made of a sufficiently soft material to prevent the risk of piercing, damaging or damaging the secondary sealing film 15. For example, it can be made from plywood, plastic, or epoxy resin.

The presser bar 50 assembled in this way offers several advantages. That is, the length of the cantilever whose second portion 51 is substantially parallel to the flat wall of the tank, which holds the flat primary insulation panel 29 preferably at a location away from the edges of the panel. Therefore, holding the flat primary insulation panel 29 on the secondary membrane is possible without any complicated preparation on the flat primary insulation panel 29, simply by exposing a flat portion of the lower sheet. Become.

In addition, the length of the second portion 51 can be easily adjusted by sliding the stud 45 in the length of the slot 58. Therefore, this configuration can be easily adjusted to fit flat primary insulation panels with different dimensions or notches 27 of different lengths. The length of the notch 27 can be shortened, especially when the edge 26 is cut to reduce the width of the insulation panel 29.

In addition, since the retainer rod 50 is fixed to the stud held by the secondary corner structure 13, its position is a flat secondary heat insulating panel adjacent to the secondary corner structure 13 (not shown). ) Is not affected by the size. Therefore, this configuration can be easily adjusted to fit flat secondary insulation panels of various dimensions.

As seen in FIG. 4, each angle section 32 has two protruding rims 53 protruding above the biplane insulation block 31 at the two opposite ends of the angle section 32 along the direction of the ridge 10. .. Therefore, the space 38 between the two biplanar insulation blocks 31 is partially covered by the two protruding rims 53 on either side of the space 38.

In order to ensure access to the anchor member arranged in the space 38, at least each of the two protruding rims 53 located on both sides of the anchor member is aligned with the stud 45 and is oriented laterally with respect to the ridge line 10. A notch 54 formed in the edge 55 is provided.

Optionally, as shown in FIG. 2, all protruding rims 53 of all angle sections 32 may have this notch 54 to standardize manufacturing.

As can be seen more clearly in FIG. 5, the notch 54 provides ample space for a tightening tool 60, such as a socket wrench with a cylindrical head 61, or a screwdriver, through two protruding rims. It functions to form between 53. Therefore, the depth of the notch 54 in the direction of the ridge line 10 can be sized so that a distance D slightly larger than the diameter of the cylindrical head 61 is formed between the bottoms of the two facing notches 54. it can. The length of the notch 54 along the edge 55 may be substantially equal to the same distance D, for example about 30 mm.

Next, the procedure for assembling the corner region of the tank will be briefly described. -Assemble the secondary insulation barrier including the cap nut 42 and the secondary sealing film 15. -Align the slot 58 of the holding rod with the cap nut 42, and arrange the holding rod 50 in the retracted position. -Insert the stud 45 through the slot 58 of the holding rod 50 and screw it into the cap nut 42 to position the nut 47 in the non-tightened position on the stud 45. The insulation joint 39 is placed between the locations of the primary corner structures 30. Where the presser bar 50 is present, the insulation joint 39 has a post at the bottom that is inserted into the hollow U-shaped cross section of the presser bar 50. In addition, the insulation joint 39 also has a cylindrical well 56 aligned with a cap nut 42 for receiving the stud 45 and the nut 47. -Fix the primary corner structure 30 to the secondary corner structure 13 on both sides of the heat insulating joint 39. A flat primary insulation panel 29 is installed adjacent to the row of primary corner structures 30. The holding rod 50 is moved to the extended position while the heat insulating joint 39 is kept stationary by the stud 45 mounted in the cylindrical well 56. The nut 47 is screwed into the stud 45 through the notch 54 of the angle section 32 and the cylindrical well 56 of the heat insulating joint 39 to press the holding rod 50. -Insert the cylindrical plug 57 into the cylindrical well 56 and close the well 56. -Place a primary sealing film.

The flat portions of the tank wall located on both sides of the ridge may be configured the same or different, symmetrically or asymmetrically. Further, although only one corner of the tank is described above, the other corners of the tank may have the same configuration or different configurations.

Next, with reference to FIGS. 7 to 10, the structure of the tank wall at one end of the ridge line 10, that is, the intersection between the three flat walls will be described. The three walls shown here form a bottom wall, an end wall, and a lower diagonal wall, respectively. The lower diagonal wall forms an angle of 135 ° with the bottom wall. The lower diagonal wall and the bottom wall are perpendicular to the end wall. Such an arrangement, for example, has a generally polyhedral shape with two octagonal end walls of eight walls, namely a horizontal bottom wall and a horizontal ceiling wall, two vertical side walls, and a side wall. Corresponds to a tank provided by connecting two upper diagonal walls, one of which is connected to the ceiling wall, and two lower diagonal walls, one of which is connected to the bottom wall, respectively. ..

In this region, as shown in FIG. 7, a row of secondary corner structures 13 is composed of a set of three insulating panels, each fixed to each load supporting structure of the three load supporting walls. It ends with the last secondary corner structure 113. Each of the three insulating panels of the final secondary corner structure 113 has the same sandwich structure as the sandwich structure of the secondary corner structure 13, i.e., the layer 116 of the insulating polymer foam is made from, for example, plywood. It is configured to be sandwiched between the two rigid sheets 117 and 118.

In each of the three insulating panels of the last secondary corner structure 113, the rigid sheet 118 has the same structure and function as the fixing plates 21 and 40 described above with respect to the secondary corner structure 13 and the fixing plate 121 and Holds 140. In particular, the fixing plate 121 makes it possible to fix the last primary corner structure 130 (FIG. 7) to the last secondary corner structure 113.

The plate 40 can secure the anchor member in the space between the last primary corner structure 130 in the row of primary corner structures and the penultimate primary corner structure 230 (FIG. 7). To. The anchor member includes a stud 145 that fits into slot 158 of the retainer bar 150, which can be seen in FIG.

FIG. 8 is also a view of the end region of the ridgeline, further showing the primary corner structure assembled on the secondary corner structure of FIG. 7. For the sake of simplicity, the secondary sealing membrane is omitted entirely.

As shown, the last primary corner structure 130 in the row consists of three heat insulating blocks, each in contact with each of the three heat insulating panels of the last secondary corner structure 113. In addition, each of the insulation blocks of the last primary corner structure 130 includes an inner surface on which the three-sided angle section 132 rests, and the overall structure of the three-sided angle section 132 is a third flange parallel to the lower diagonal wall. It is similar to the metal angle section 32 of the primary corner structure 30 except that 100 is present. The three-sided angle section 132 specifically includes the stud 136, the orifice 137, and the rim 153, and their structures and functions are similar to those of the stud 36, the orifice 37, and the rim 53 described above.

The penultimate primary corner structure 230 is shown with reference numerals increased by 200 with respect to elements similar to or identical to the elements of the primary corner structure 30. The two-plane insulation block 231 is longer than the two-plane insulation block 31 and holds two continuous metal angle sections in the direction of the ridge on the inner surface. The metal angle section 232 is substantially identical to the metal angle section 32 of the primary corner structure 30, but the biplanar insulation block 231 is elongated towards the final primary corner structure 130. Therefore, it can have a longer dimension along the ridge line 10 and extends only on one side (not shown) of the two-plane insulation block 231.

The metal angle section 65 is arranged next to the metal angle section 232 with a small gap and is fixed to the biplanar insulation block 231 in the same manner as the metal angle section 32 of the primary corner structure 30. The metal angle section 65 has a protruding rim 253 above the space 138 that projects along the direction of the ridge 10 from the biplanar insulation block 231. Space 138 is partially covered by two protruding rims 153 and 253 on either side of it.

The protruding rim 153 and / or the protruding rim 253 may include a notch to facilitate access to the anchor member located in space 138. Here, the notch 254 is present only in the protruding rim 253.

In addition, the penultimate primary corner structure 230 is the penultimate part below the secondary insulation barrier that is farthest from the last primary corner structure 130, i.e., in the same manner as described above. It is fixed only in the portion holding the metal angle section 232 fixed to the secondary corner structure 13. For this purpose, the metal angle section 232 further has an orifice 237.

On the contrary, in the metal angle section 65, the portion of the two-plane heat insulating block 231 facing the last primary corner structure 130 is the penultimate secondary corner structure 13 and the last secondary corner. It extends over the last secondary corner structure 113 across the gap 66 with the part structure 113, but is not fixed to the last secondary corner structure 113, so it does not include an orifice and is continuous. It may be there.

This configuration has the advantage that it does not depend on the exact dimensions of the gap 66 in the secondary insulation barrier, which can be easily adjusted to compensate for manufacturing tolerances.

Further, in order to adjust the primary insulation barrier to the dimensional manufacturing tolerances of the load bearing structure, it is possible to cut the penultimate primary corner structure 230 to the measured dimensions, i.e. the last. It is possible to cut the end of the biplanar insulation block 231 facing the primary corner structure 130 and the end of the metal angle section 65. This cutting does not cause any hassle, as this end is not fixed to the secondary insulation barrier. In this case, the notch 254 is added after the metal angle section 65 has been cut to the desired length.

FIG. 9 shows the same tank area as FIG. 8, but with the addition of the last flat primary insulation panel 129 adjacent to the penultimate primary corner structure 230. The flat primary insulation panel 129 is formed in a manner similar to the notch 27 in FIG. 3 by aligning it with a corner region of a solid lower sheet (not shown) and having a recess 127 exposing the corner region. Have. Further, FIG. 9 shows a pressing rod 150 that fits into the recess 127 and presses the exposed region as described above.

Next, the structure of the primary sealing film at the corner of the tank will be described with reference to FIGS. 9 and 10.

The primary sealing membrane is, for example, a membrane having two series of waveforms perpendicular to each other. Basically, it can be manufactured as described in the pamphlet of International Publication No. 2017/006044. A metal sheet 67 of the primary sealing film adjacent to the ridge is welded to the metal angle sections 32, 232, 65, 132 along their respective edges facing the ridge. In addition, metal corner pieces 68, 168, 268 are welded across their respective interfaces between two consecutive metal angle sections 32, 232, 65, 132.

The corner pieces 68, 168, 268 cover the orifices 37, 137, 237, and the notches 54, 254 of the metal angle section are the continuity of the waveform of the primary sealing film oriented perpendicular to the ridge line 10. To produce.

FIG. 11 shows another embodiment of the tank wall along the ridgeline 10. For the sake of simplicity, the primary and secondary sealing membranes are omitted. Elements similar to or identical to the elements of FIGS. 2-4 have the same reference numerals increased by 300 and are described as long as they differ from the elements of FIGS. 2-4.

In this embodiment, the primary corner structure 330 is fixed to the secondary corner structure 313 by studs 345 arranged in each space 338 between the two biplanar insulation blocks 331. For this purpose, the rigid sheet 334 is slightly wider than the polymer foam layer 333 so that the two lateral rims of the rigid sheet 334 are exposed.

The retainer bar 350 has a bore that may be oval through which the stud 345 passes and presses the lateral rim of the rigid seat 334 of the two primary corner structures 330 with the stud 345 arranged between them. Therefore, each primary corner structure 330 is held by two retainers 350 that engage the two lateral rims of its rigid seat 334. A nut (not shown) is screwed into each stud 345 and pushes the retainer 350 towards the load bearing structure. The edge notch 354 of the metal angle section 332 facilitates the incorporation of the stud 345 and the subsequent placement of the nut, as already mentioned.

Due to this method of fixing the primary corner structure 330, there is no orifice in the metal angle section 332, thus allowing the metal angle section 332 to be continuous.

Rows of studs 69 can be provided on either side of the row of primary corner structures 330 to secure the flat primary insulation panels 329 adjacent to the row of primary corner structures 330 to the secondary barrier. This may make it necessary to prepare a wider secondary corner structure 313 as shown.

In one embodiment, there is no secondary insulation barrier and secondary sealing film, and the studs that secure the primary insulation barrier are held directly by the load bearing walls 11 and 12.

The techniques described above for producing sealed insulated tanks for storing fluids have been used in various types of storage tanks, such as the formation of LNG storage tanks in floating structures such as onshore equipment or methane transport vessels or other vessels. It can be used.

In the context of a support surface that is actually a polyhedron where the flat parts meet at the ridgeline, the technique described above is a support surface that is largely a polyhedron with a rounded portion that forms a connection between the flat parts instead of the ridgeline. It is also applicable to. The term ridge region is used in both contexts to refer to the connection between two flat sections and can correspond to the actual ridge or the rounded section between the two flat sections.

With reference to FIG. 12, a cut-out view of the methane transport vessel 70 shows a closed insulation tank 71, generally in the shape of a prism, incorporated into the double hull 72 of the vessel. The walls of the tank 71 are a primary sealing barrier suitable for contact with LNG contained in the tank, a secondary sealing barrier arranged between the primary sealing barrier and the ship's double hull 72, and a primary sealing. Includes two adiabatic barriers, respectively, located between the stop barrier and the secondary sealing barrier and between the secondary sealing barrier and the double hull 72.

In a manner known per se, the loading / unloading pipe 73 located on the upper deck of the vessel is connected to the terminal at sea or in the port with an appropriate connector to transfer the LNG from the tank 71, or the tank 71. Can be moved to.

FIG. 12 shows an example of an offshore terminal that includes a loading and unloading station 75, an underwater pipeline 76, and land equipment 77. The loading and unloading station 75 is a fixed offshore facility that includes a movable arm 74 and a tower 78 that supports the movable arm 74. The movable arm 74 holds a bundle of adiabatic flexible hoses 79 that can be connected to the loading / unloading pipe 73. The movable arm 74, which can change direction, is suitable for methane transport vessels of all sizes. A connecting pipeline (not shown) extends inside the tower 78. The loading and unloading station 75 allows loading from the land facility 77 to the methane transport vessel or loading and unloading from the methane carrier 70 to the land facility 77. The onshore facility 77 includes a liquefied gas storage tank 80 and a connecting pipeline 81 connected to a loading or unloading station 75 by an underwater pipeline 76. The underwater pipeline 76 allows the liquefied gas to be transferred between the loading or unloading station 75 and the onshore equipment 77 over long distances, such as 5 km, during loading and unloading operations of the methane transport vessel 70. Allows you to keep long distances from the coast.

To generate the pressure required to transfer the liquefied gas, a pump on board the ship 70 and / or a pump on land equipment 77 and / or a pump on the loading and unloading station 75 is mounted.

Although the present invention has been described with reference to some specific embodiments, the present invention is by no means limited to those embodiments, and the present invention describes any technical equivalent of the means described above and any of them. It is clear to include combinations if they are within the technical scope of the invention.

The use of the verb "contains" or "contains ..." and its conjugations does not preclude the existence of any element or step other than the element or step described in the claims. The use of the indefinite article "one ..." for an element or step does not preclude the existence of multiple such elements or steps, unless otherwise stated.

In a claim, the reference code in parentheses cannot be interpreted as limiting the claim.

Claims (24)

A closed insulation tank for storing fluids
A heat insulating barrier and a sealing barrier arranged on the inner surface of the heat insulating barrier are included, and the heat insulating barrier is arranged on a support surface for holding an anchor member and held on the support surface by the anchor member. The support surface has at least two flat regions, the at least two flat regions forming an angle between them and meeting in the ridge region (10).
The adiabatic barrier comprises a row of corner structures (30, 130, 230, 330) arranged along the ridge region of the support surface and the support surface on both sides of the row of corner structures. Including flat insulation panels (29, 129, 329) arranged on a flat area,
At least one of the corner structures
It has two surfaces that are parallel to each of the flat regions and form an angle between them, the surfaces being a flat outer surface that is pressed against the corresponding flat region of the support surface. , A biplanar insulation block (31, 231, 331) comprising the flat inner surface parallel to the corresponding flat region and distant from the flat outer surface in the thickness direction.
In order to form the sealing barrier aligned with the ridgeline region of the support surface, the biplane heat insulating block is fixed to the flat inner surface of the biplane heat insulating block and from the biplanar heat insulating block along the direction of the ridgeline region. Also includes metal angle sections (32, 65, 132, 232, 332) having protruding portions (53, 153, 253, 353).
The two continuous corner structures in the row are arranged so that there is a space (38, 138, 338) along the direction of the ridge region between the biplanar insulation blocks, the space being said. At least partially covered by the overhangs (53, 153, 253, 353) of the metal angle section of at least one of the two continuous corner structures.
The support surface holds one anchor member (45, 145, 345) arranged between the two-plane heat insulating blocks of the two corner structures, and the two continuous corner structures. At least one of the metal angle sections of the metal angle section aligned with the anchor member disposed between the biplanar insulation blocks to form access to the anchor member (45, 145, 345). A closed insulation tank having notches (54, 254, 354) made in the protruding portion. The space is partially covered by two opposing protrusions (53, 153, 253, 353) belonging to the metal angle section of the two continuous corner structures, respectively, and the two facing each other. The tank according to claim 1, wherein each of the three protruding portions includes a notch (54, 254, 354) made in alignment with the anchor member. The tank according to claim 1 or 2, wherein the notch (54, 254, 354) is formed at the edge of the protruding portion that is lateral to the ridgeline region. The anchor members (345, 350) arranged between the two-plane heat insulating blocks (331) of the two continuous corner structures (330) are the two-plane heat insulating blocks of the two corner structures. The tank according to any one of claims 1 to 3, which engages with and holds the two-plane heat insulating block (331) on the support surface. The anchor member is
A stud (345) fixed to the support surface and projecting inward in the space between the two-plane insulation blocks.
A holding rod (350) mounted on the stud and having two lateral portions each engaging the two biplane insulation blocks (331).
The tank according to claim 4, further comprising a nut that is screwed into the stud (345) and pushes the holding rod (350) toward the support surface. The anchor member arranged between the two-plane insulation blocks (31, 231) of the two continuous corner structures is a flat insulation panel (29, 129) adjacent to the row of the corner structures. The tank according to any one of claims 1 to 5, which engages with and holds the flat heat insulating panel on the support surface. The anchor member is
A stud (45, 145) fixed to the support surface and projecting inward in the space between the two-plane insulation blocks.
The first portion mounted on the stud and facing the ridge region and the flat insulation projecting from the biplanar insulation block (31, 231) in a direction opposite to the ridge region. A holding rod (50, 150) having a second portion (51) that engages the panel (29, 129), and
The tank of claim 6, comprising a nut (47) screwed into the stud and capable of pushing the retainer rods (50, 150) towards the support surface. When the nut does not push the holding bar, the holding bar is pressed.
The space between the two-plane insulation blocks (31, 231) of the two continuous corner structures so that the holding rods leave space for the flat isolated panel (29, 129). Retreat position to be accommodated in
The second portion (51) is more than the two-plane insulation block (31, 231) in a direction opposite to the ridge region due to engagement with the flat insulation panel (29, 129). The tank according to claim 7, wherein the holding rod has a slot through which the stud passes so that it can be slid laterally with respect to the ridge region with a protruding extension position. The flat insulating panel (29, 129) adjacent to the row of corner structures contains a layer of insulating polymer foam sandwiched between a solid lower sheet and a solid cover sheet (25). , The rigid cover sheet and the insulating polymer foam layer are formed to the thickness of the insulating panel and have recesses (27, 127) that expose the supporting area (28) on the inner surface of the rigid lower sheet. The recess appears at the edge (26) of the flat insulating panel parallel to the ridge region and faces the row of corner structures, the anchor member is the supporting region (28) of the lower sheet. The tank according to any one of claims 6 to 8, which is engaged with. The tank according to claim 9, wherein the recess formed to the thickness of the heat insulating panel is a notch (27) oriented perpendicular to the edge (26) of the flat heat insulating panel. The tank according to claim 9 or 10, wherein the flat heat insulating panel has a rectangular parallelepiped shape, and the recess (127) is formed in a corner portion of the flat heat insulating panel. The support surface holds a plurality of anchor members (45, 145) distributed along the ridgeline region (10), and each of the plurality of anchor members is a continuous corner structure (30, 130, 230). ) Is placed between the two two-plane insulation blocks and engages with each region of the flat insulation panels (29, 129) adjacent to the row of corner structures to provide the flat insulation panels. The tank according to any one of claims 6 to 11, which is held on the support surface. The support surface includes a third flat region laterally oriented with respect to the ridge region at one end of the ridge region (10), and the last corner structure (130) in the row of corner structures In addition to the two-plane insulation block, a third surface (100) parallel to the third flat region and forming an angle with the two surfaces of the two-plane insulation block (130) is included.
The metal angle section (132) of the last corner structure (130) extends over the flat inner surface of the third surface and aligns with the end of the ridge region of the support surface. The metal angle section forms a stop barrier, the third surface connects the third surface to the biplanar insulation block, and the protruding portion (153) of the metal angle section (132) has the corner structure. The item according to any one of claims 1 to 12, which protrudes in the direction opposite to the third surface (100) toward the penultimate corner structure (230) in the row of objects. Described tank. The biplanar insulation block (231) of the penultimate corner structure (230) in the row of corner structures is compared to the corner structure located in the central portion of the ridge region. The metal angle section of the penultimate corner structure having a large dimension along the direction of the ridgeline region is juxtaposed along the direction of the ridgeline region, and the two-plane heat insulating block (231). 13. The tank according to claim 13, comprising two angle portions (232, 65) fixed to the flat inner surface of the above. The first angle portion (232) of the penultimate corner structure is an orifice (237) for passing an anchor member that functions to fix the two-plane heat insulating block (231) on the support surface. 14. The second angle portion (65) of the penultimate corner structure located on the side of the end of the ridgeline region has a continuous surface. Tank. The block of insulation material (39) is located between the protrusions (53, 153, 253, 353) of the metal angle section and the support surface and the space (38, 138,) between the biplanar insulation blocks. 338), the block of insulation material (39) is disposed between the notch (54, 254, 354) formed in the protrusion of the metal angle section and the biplanar insulation block. The tank according to claim 1 to 15, which has a passage (56) between the anchor member and the anchor member. The sealing barrier is located across the metal angle sections (32, 132, 232, 65) of the two continuous corner structures and is located on the metal angle sections of the two corner structures. Includes a closure part (68) that provides a sealed connection between
The closure component (68) is a gap located between the metal angle sections and the notch (54, 254,) of the overhang or each overhang covering the space between the biplanar insulation blocks. 354) The tank according to claim 1-16, which covers and covers. The sealing barrier aligned with one flat region of the support surface or each flat region is a flat waveform located between the waveform parallel to the ridgeline region, the waveform perpendicular to the ridgeline region, and the waveform. One edge of the metal film (67) including the metal film (67) having a region and parallel to the ridgeline region to the metal angle section (32, 232, 65) of the continuous corner structure. The tank according to claim 1-17, wherein the corrugations perpendicular to the ridge region are aligned with a gap located between the metal angle sections of the continuous corner structure. The closing parts (68, 168) are located in a waveform perpendicular to the ridgeline region aligned with the waveform of the metal film and on both sides of the waveform, respectively, in the metal angle section of the two corner structures. The tank according to claim 18, which is subordinate to claim 17, comprising two flat portions welded together. The adiabatic barrier is a primary adiabatic barrier, the sealing barrier is a primary sealing barrier, and the tank has a substantially polyhedral inner surface covered by a secondary sealing barrier (15). The tank according to any one of claims 1 to 19, further comprising a secondary heat insulating barrier (13, 113, 213) forming the support surface. A ship (70) for transporting fluids
A ship including a double hull (72) and a tank (71) according to any one of claims 1 to 20 arranged in the double hull. A system for transporting fluids
A heat insulating pipe (73) arranged so as to connect the ship (70) according to claim 21 and the tank (71) installed in the ship body of the ship to a storage facility (77) on water or on land. , 79, 76, 81) and the fluid is carried from the water or land storage facility to the tank of the ship through the insulation pipe, or from the tank of the ship to the water or land storage system. A system that includes a pump for carrying. The method for loading or unloading the ship (70) according to claim 21.
Fluid is carried from the water or onshore storage facility (77) through the insulation pipes (73, 79, 76, 81) to the tank (71) of the vessel, or from the tank (71) of the vessel. Or a method of being transported to a land storage system (77). A method for manufacturing a closed insulation tank according to any one of claims 1 to 20.
Steps to prepare the support surface and
A step of assembling the anchor member (45, 145, 345) on the support surface, and
The row of corner structures (30, 130, 230, 330) along the ridge region of the support surface and the anchor member (45, 145, 345) of the two consecutive corner structures in the row. Steps to assemble so that they are placed between the two-plane insulation blocks,
The anchor member (45, 145, 345) is accessed through the notch (54, 254, 354) made in the protruding portion of the metal angle section aligned with the anchor member. A method comprising the step of bringing a member into an engaged state that holds an element of the adiabatic barrier on the support surface.

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