CN114962984B

CN114962984B - Storage container for storing liquefied gas and method for assembling the same

Info

Publication number: CN114962984B
Application number: CN202210745956.9A
Authority: CN
Inventors: 魏颖; 陈世福; 冯宪高; 何炜
Original assignee: Zhongtai Energy Technology Shanghai Co ltd
Current assignee: Zhongtai Energy Technology Shanghai Co ltd; Sinopec Engineering Inc
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2024-02-02
Anticipated expiration: 2042-06-29
Also published as: CN114962984A

Abstract

The invention discloses a storage container for storing liquefied gas and an assembly method thereof. The wall of the storage container comprises at least two sections, adjacent sections being connected by a connecting assembly. The inner and outer support walls of the inner and outer structures of adjacent two segments each extend into the connection region to at least partially overlap the connection assembly, which is connected together in the thickness direction of the wall with the respective outer support walls of the inner and outer structures of the adjacent two segments. The wall of the storage container according to the invention is formed by modular segments connected by connecting elements, the different wall layers of the segments having different extension lengths, so that part of the wall layers extend into the connecting region to overlap the connecting elements and are adapted to the connecting elements. The connecting component provided by the invention also has the configuration which can be compatible with other structures such as cables, so that the connecting component can form part of the structure of a multifunctional integrated module.

Description

Storage container for storing liquefied gas and method for assembling the same

Technical Field

The invention relates to the technical field of Liquefied Natural Gas (LNG) low-temperature storage devices, in particular to a storage container for storing liquefied gas and an assembly method thereof.

Background

Liquefied Natural Gas (LNG) has been used as the first choice energy source for petroleum replacement with the advantages of green, environment protection and high efficiency, and has become one of the most rapidly developed energy industries worldwide. Along with the rapid development of Chinese economy and the continuous improvement of environmental management requirements, the application and development of LNG are increasingly valued by all parties, especially under the condition of frequent haze weather, the importance of LNG is increasingly prominent, and the rapid increase of the social demand for clean energy is initiated. One of the important directions of the development of clean energy in China in the future is LNG.

The LNG receiving station mainly comprises dock unloading, LNG storage, process treatment and export, wherein the LNG storage tank bearing the storage task has the longest construction period, the most advanced technology and the most difficult point in the engineering construction process, and is always managed as a key path of the whole engineering. But also the construction form and the science and technology creation of the LNG storage tank are the focus of attention of the domestic and international co-workers.

In order to achieve production, installation and subsequent maintenance and replacement of the tank, the current art is inclined to arrange the walls of the tank in a modular manner, the individual modules being secured together by means of connecting means. However, the existing connection device and the wall portion of the connection device are relatively simple, and cannot meet various requirements in production, and cannot provide firm connection for each module while being compatible with other functions, and are inconvenient for maintenance personnel to replace and repair.

On the other hand, the joint relationship between the various layers of the walls of existing tanks also needs to be optimized. There is a need for an optimization that allows for easy removal and replacement of specific layers while maintaining wall stability.

Accordingly, there is a need to provide a storage container for storing liquefied gas and a method of assembling the same that at least partially solve the above-mentioned problems.

Disclosure of Invention

The object of the present invention is to provide a storage container for storing liquefied gas, the walls of which are connected by modular segments by connecting assemblies, and a method for assembling the same. In the invention, the different layer structures of the modular sections have different extension lengths, and part of the layer structures extend into the connection areas and are correspondingly adapted to the connection assemblies at positions overlapping the connection assemblies. The connection assembly enables stable connection of adjacent sections while being easy to disassemble and subsequent maintenance.

Meanwhile, the connecting component provided by the invention also has the configuration which can be compatible with other structures such as cables, so that the connecting component can form part of the structure of a multifunctional integrated module. On the other hand, the individual modules of the wall of the storage container according to the invention also have a preferred configuration, enable sealing, insulation of the reservoir liquid at the same time and have sufficient support strength themselves. The invention also provides various preferred arrangements of thickness, specific construction, connection means, etc. of the various functional layers of the various modules of the wall of the storage container. The invention further provides a preferred connection mode between different layers, so that the disassembly, assembly and replacement of the specific layers can be conveniently realized on the premise of ensuring the stability of the wall.

According to one aspect of the present invention, there is provided a storage container for storing liquefied gas, the wall of the storage container comprising at least two sections along its extension, each section comprising an inner layer structure and an outer layer structure stacked in the thickness direction of the wall, adjacent two sections of the at least two sections being connected by a connecting assembly at a connecting region, each of the inner layer structure and the outer layer structure comprising an outer support wall, an inner support wall and an insulating layer between the outer support wall and the inner support wall,

characterized in that in the direction of connection of the two adjacent segments, the outer support walls of the segments protrude from the inner support wall and the insulating layer, wherein both the inner layer structure and the outer support wall of the outer layer structure extend into the connection region to overlap at least partially with the connection assembly, and the connection assembly connects together the outer support walls of the respective inner layer structure and the outer support wall of the outer layer structure of the two adjacent segments in the thickness direction of the walls,

and the wall further comprises a main shielding layer arranged on the inner side of the inner layer structure, which extends across the adjacent two sections and the connection area in the connection direction of the adjacent two sections.

In one embodiment, the connection assembly includes a connection body positioned between insulation layers of the outer layer structure of two adjacent segments.

In one embodiment, the connecting body is provided with two first through holes, each of which extends through the connecting body in the thickness direction and abuts against the two adjacent sections respectively,

and the connecting assembly comprises two first connecting pieces, the two first connecting pieces penetrate through the two through holes respectively, the outer ends of the first connecting pieces are directly or indirectly fixedly connected with the outer supporting wall of the outer layer structure, and the inner ends of the first connecting pieces are directly or indirectly fixedly connected with the outer supporting wall of the inner layer structure.

In one embodiment, the connecting assembly further comprises at least one fixing member located at the inner side of the connecting body, and the inner end of the first connecting member is fixedly connected to the outer supporting wall of the inner layer structure via the at least one fixing member.

In one embodiment, the at least one fastener comprises:

a first securing member positioned between inner support walls of the outer layer structure of the adjacent two sections, an inner end of each of the first connecting members being locked to the first securing member;

A second fixing member fixed to the inner side of the outer support wall of the respective inner layer structure of the adjacent two sections;

and, the connection assembly further includes a second connection member configured to connect the first and second fixing members.

In one embodiment, the first connecting piece is a bolt, and the connecting assembly further comprises a pre-buried plate positioned on the outer side of the outer supporting wall of the outer layer structure, a nut member penetrating through the outer supporting wall of the outer layer structure is fixedly arranged on the inner side surface of the pre-buried plate, and the outer end of the first connecting piece is locked by the nut member.

In one embodiment, the second connecting piece is a stud, the first fixing piece and the second fixing piece are both provided with a central through hole extending along the axial direction of the stud, and the second connecting piece penetrates through the central through hole on the first fixing piece and the second fixing piece and is locked by a nut member at the inner side of the second fixing piece.

In one embodiment, the connecting assembly further comprises a filling member positioned at the inner side of the second fixing member, a nut receiving portion opening outwards is formed on the filling member, the main body of the filling member is of an insulating structure, and the wall of the filling member, facing the main shielding layer, is of a supporting structure.

In one embodiment, the connecting body has an outer contour constituting a cylinder, the connecting body being positioned such that its axis is perpendicular to the wall, and the two first through holes are arranged radially symmetrically about the axis; or alternatively

The connecting body has an outer contour constituting a rectangular parallelepiped.

In one embodiment, the connecting body is provided with a wiring groove which is open to the outside, and the wiring groove penetrates through the connecting body along the perpendicular direction of the connecting direction when seen from the extension plane of the wall of the storage container.

In one embodiment, the dimension of the wire groove is 1/2-4/5 of the dimension of the connecting body in the thickness direction of the wall; in the connection direction, the size of the wiring groove is 1/5-1/3 of the size of the connection main body.

In one embodiment, for each of the outer layer structure and the inner layer structure:

the thickness of the insulating layer is greater than that of the inner supporting wall; and/or

The outer support wall and the inner support wall are made of the same material and have the same thickness as the inner support wall.

In one embodiment, for each of the outer layer structure and the inner layer structure: the inner supporting wall and the outer supporting wall are made of insulating plywood; the insulating layer is made of a PUF.

In one embodiment, the primary shield includes a planar plate detachably attached to the inner support wall of the inner layer structure by an anchor assembly and a shield corrugation located inside the connection region.

In one embodiment, the anchor assembly includes an anchor extending outwardly from the flat plate and an anchor receiving slot provided on the inner support wall that opens toward the anchor, the anchor receiving slot and the anchor being shaped such that the anchor can be inserted into the anchor receiving slot and rotated a predetermined angle in a plane of rotation perpendicular to the insertion direction to reach the locked position.

In one embodiment, the anchor comprises an anchor body protruding outward from the flat plate and an anchor locking portion protruding radially outward at an outer end of the anchor body, wherein the anchor body is a cylinder with an axis perpendicular to the wall, and the anchor locking portion is an elongated structure protruding in a radial direction of the anchor body.

In one embodiment, the wall further comprises a secondary shielding layer between the inner layer structure and the outer layer structure, the secondary shielding layer extending across the first section, the second section and the connection region in the connection direction of the first section, the second section.

In one embodiment, the secondary shield is formed by a plurality of secondary shield units connected together, and adjacent secondary shield units are connected together by being secured to the inner support wall of the same outer layer structure,

and, said primary barrier extends entirely continuously along the entire wall of said storage vessel to define a closed space configured for containing liquefied gas; the secondary shield integrally connected therewith extends entirely continuously along the extending direction of the entire wall to define another enclosed space between the secondary shield and the primary shield independent of the enclosed space.

In one embodiment, the inner support wall of the outer layer structure is provided with a clamping groove for partially accommodating a clamping strip, the clamping strip comprises a first part and a second part which form a T-shaped structure, the first part is accommodated in the clamping groove, the second part extends to be connected with the outer support wall of the inner layer structure, and adjacent shielding layer units are provided with bending sections at the clamping strip and are adhered and welded with the second part of the clamping strip.

In one embodiment, a space exists between the secondary shielding layer and the inner layer structure.

In one embodiment, the wall comprises a plurality of sections arranged in an array.

According to another aspect of the present invention there is provided a method of assembling a wall of a storage container according to any one of the above aspects, the method comprising the steps of:

a preamble installation step including fixing a portion of the connection assembly to the base layer;

an outer layer structure installation step, wherein the outer layer structure setting step comprises the following steps:

securing the modular outer layer structure of the first and second sections to the base layer;

installing a connecting body of the connecting assembly between the outer layer structures of the first section and the second section, and fixedly connecting the connecting body and the part of the connecting assembly;

an inner layer structure mounting step, comprising:

placing the modular inner layer structure of the first section inside the outer layer structure of the first section and placing the modular inner layer structure of the second section inside the outer layer structure of the second section;

Installing another portion of the connection assembly between the outer layer structures of the first and second sections and directly or indirectly connecting the another portion with the connection body; and

and a main shielding layer installation step, wherein the main shielding layer installation step comprises the step of arranging a main shielding layer on the inner side of the inner layer structure of the first section and the second section.

In one embodiment, the preamble installation step includes: fixing the embedded plate on the concrete base layer; installing a nut member on the top of the embedded plate;

and, the outer layer structure mounting step includes:

penetrating a bolt through the connection body such that an outer end of the bolt is locked by the nut member; and

a first fixing piece is arranged on the inner side of the connecting main body, and the inner end of the bolt is locked on the first fixing piece.

In one embodiment, the inner layer structure mounting step includes:

a second fixing piece is arranged on the inner side of the outer supporting wall of the inner layer structure;

the second fixing piece and the first fixing piece are connected together through a stud;

and a nut is arranged on the inner side of the second fixing piece and used for locking the inner end of the stud.

In one embodiment, the method further comprises a secondary shielding layer installation step between the outer layer structure installation step and the inner layer structure installation step, the secondary shielding layer installation step comprising: the secondary shielding layer units are fixed on the outer side of the inner supporting wall of the outer layer structure, so that adjacent secondary shielding layer units are connected into an integrated secondary shielding layer, and the integrated secondary shielding layer spans the first section, the second section and the connecting area in the connecting direction of the first section and the second section.

Drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the preferred embodiments illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. It will be appreciated by persons skilled in the art that the drawings are intended to schematically illustrate preferred embodiments of the invention, and that the scope of the invention is not limited in any way by the drawings, and that the various components are not drawn to scale.

FIG. 1 is a schematic cross-sectional view of a wall of a storage container according to a preferred embodiment of the present invention;

FIG. 2A is a schematic perspective view of the connecting body of FIG. 1;

FIG. 2B is a perspective view of the connecting body shown in FIG. 2A;

FIG. 3A is a perspective view of the first mount of FIG. 1;

FIG. 3B is a perspective view of the second mount of FIG. 1;

FIG. 4 is a schematic perspective view of the filler element of FIG. 1;

FIG. 5 is a schematic perspective view of a slot connection between the two layers of FIG. 1;

fig. 6A is a perspective view of the anchor assembly of fig. 1 in an exploded condition;

fig. 6B is a schematic cross-sectional view of the anchor assembly of fig. 1 in an exploded state;

fig. 7 is a flow chart of a method of assembling a wall of a storage container according to the present invention.

Reference numerals:

100 walls of storage vessel

11 first section

12 second section

13 connection area of the first and second sections

14 inner layer structure

141 first inner support wall

142 first insulating layer

143 first outer support wall

15 outer layer structure

151 second inner support wall

151a clamping groove

152 a second insulating layer

153 second outer support wall

16 gaps

17 adhesive tape

18 main shielding layer

181 flat plate

182 shielding layer corrugation

19 times of shielding layer

191. 192 shielding layer unit

Bending section of 1911a and 1912a sub-shielding layer unit

20 connection assembly

21 connecting body

212 wiring groove

213 first through hole

22 first fixing piece

221 second through hole

222 first securing member central through hole

23 second fixing piece

Center through hole of 231 second fixing piece

241 first connector

242. 252 nut member

251 second connector

212 cable

26 packing element

261 receiving bore of filler piece

Plywood layer of 262 filler

27 pre-buried plate

30 connection location of the first inner support wall and the main shield

31 anchoring piece

311 anchor body

312 anchor closure

32 anchor receiver

321 anchor receiving slot

322 an elongated portion of the anchor receiving slot

323 inside of anchor receiver

324 bottom surface of top wall of anchor receiver

40 connection location of inner and outer layer structures

41 clamping strip

Detailed Description

Specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. What has been described herein is merely a preferred embodiment according to the present invention, and other ways of implementing the invention will occur to those skilled in the art on the basis of the preferred embodiment, and are intended to fall within the scope of the invention as well.

The present invention provides a storage container for storing liquefied gas, the wall of which is divided into at least two sections along the extending direction thereof, and fig. 1 to 6B show the structure at the connection region of two adjacent sections. The invention also provides a method of assembling the walls of the storage container, the general steps of which are shown in figure 7.

It should be noted first that the directional terms, positional terms mentioned in the present invention are merely exemplary descriptions and not limiting descriptions, and can be understood with reference to the positions, directions, etc. of the respective components shown in fig. 1 to 6B. The description of the position of a component should be understood as a relative position and not an absolute position, and the description of the direction of extension of a component should be understood as a relative direction and not an absolute direction. For example, in the present invention, "inside", "inwardly" may be understood as the side of the wall of the storage vessel containing the liquefied gas and the direction towards the side containing the liquefied gas, which direction is for example shown by d1+ shown in fig. 1; "outside", "outward" are the side of the wall facing the outside and the direction towards the outside, which is shown for example by D1-shown in FIG. 1; "D1 direction" refers to the D1 direction of the wall, e.g., defined by the direction shown as D1+, D1-. The directions D1 (including d1+, D1-), D2, D3 shown in fig. 1-6B are three directions orthogonal in space.

It should be further noted that fig. 1-6B are only schematic drawings, and fig. 1-6B are not necessarily drawn to scale, and the drawings do not necessarily have corresponding dimensional relationships, for example, the ratio of the length and the diameter of the connecting body in fig. 1 is not necessarily identical to the ratio of the length and the diameter of the connecting body in fig. 2A.

Referring to fig. 1, the wall 100 of the storage container of the present invention includes a two-layered structure, an outer layer structure 15 and an inner layer structure 14, layered in the D1 direction of the wall (i.e., in the direction in which d1+, D1-extends). Also, the wall 100 comprises at least two sections along its extension. That is, each section includes an inner layer structure 14 and an outer layer structure 15. Adjacent two sections among the at least two sections are connected by a connecting assembly. Fig. 1 schematically shows adjacent first and second sections 11, 12 and a connection assembly 20 connected therebetween.

In some embodiments, the outer layer structure 15 and the inner layer structure 14 each include an inner support wall, an outer support wall, and an insulating layer. The specific configuration, dimensions, and the like of the outer layer structure 15 and the inner layer structure 14 may be the same or similar, but preferably also with some differences. For convenience of description, the respective wall layers of the inner layer structure 14 are referred to as a first inner support wall 141, a first outer support wall 143, and a first insulating layer 142, respectively, and the respective wall layers of the outer layer structure 15 are referred to as a second inner support wall 151, a second outer support wall 153, and a second insulating layer 152, respectively. It should be noted that the descriptions of "first" and "second" are used for distinguishing only, and do not imply any order.

The wall 100 further comprises a main shielding layer 18 arranged inside the inner layer structure 14, the main shielding layer 18 extending across the first section 11, the second section 12 and the connection area 13 in a connection direction (i.e. D2 direction) along the first section 11, the second section 12. The main shield 18 may, for example, comprise a shield corrugation 182 at the connection region 13 (e.g. at a location inboard of the connection assembly 20) and comprise a planar plate 181 directly facing the first inner support wall 141. The main shielding layer 18 may be formed by splicing the shielding layer corrugation 182 and the flat plate 181, and the spliced main shielding layer 18 has an integrated form spanning the first section 11, the second section 12 and the connection region 13 as shown in fig. 1. Connecting the primary barrier layer 18 as a unitary member can promote the fluid-tight, airtight effect of the storage container, avoiding seepage. Meanwhile, the provision of the shield corrugation 182 in the integral member can raise the tension of the main shield 18, allowing the main shield 18 to be slightly stretched or contracted at different use temperatures and use pressures without such slight deformation affecting the sealing effect thereof; and providing the portions of the main shield 18 facing the respective first inner support walls 141 as flat plates can facilitate the connection installation of the main shield 18 and the first inner support walls 141.

The inner layer structure 14 and the outer layer structure 15 may also have some preferred arrangement. For example, for the inner layer structure 14, the first inner supporting wall 141 and the first outer supporting wall 143 may be made of insulating plywood, for example, and mainly serve as supports, and the thicknesses of the first inner supporting wall 141 and the first outer supporting wall 143 may be approximately equal, and the thicknesses of both may be slightly greater than the thickness of the main shielding layer 18 but less than the thickness of the first insulating layer 142. The first insulating layer 142 may be made of an insulating PUF, for example.

For the outer layer structure 15, the second inner support wall 151 and the second outer support wall 153 may be made of, for example, insulating plywood and mainly serve as supports, and the thickness of the second inner support wall 151 and the second outer support wall 153 may be substantially equal, and the thickness of both may be smaller than the thickness of the second insulating layer 152. The second insulating layer 152 may for example be made of an insulating PUF.

Preferably, the wall 100 may further comprise a secondary shielding layer 19 between the inner layer structure 14, the outer layer structure 15, the secondary shielding layer 19 may be made of invar plates and may have a thickness significantly smaller than the thickness of the primary shielding layer 18. The secondary shield 19 may also be formed from a plurality of sub-shield units joined together, and fig. 1 shows the connection locations 40 of adjacent shield units, the specific manner of which will be discussed below.

With continued reference to fig. 1, in this embodiment, the overall thickness of the outer layer structure 15 is greater than the overall thickness of the inner layer structure 14; the thickness of the first inner supporting wall 141, the first outer supporting wall 143, the second inner supporting wall 151, and the second outer supporting wall 153, which serve as a supporting function, may be approximately equal; the thickness of the second insulating layer 152 is significantly greater than the thickness of the first insulating layer 142; the thickness of the primary shielding layer 18 is significantly greater than the thickness of the secondary shielding layer 19; the thickness of the first insulating layer 142 and the second insulating layer 152 is significantly greater than that of the other layer structures.

In some embodiments, different wall layers of the outer layer structure 15, the inner layer structure 14 may have different extension lengths. Portions of the wall layers of the outer layer structure 15 and the inner layer structure 14 extend into the connection region 13 so as to at least partially overlap the connection assembly 20 to be secured with the connection assembly 20 in the direction D1. By "overlapping" it is meant that the projections of the partial wall layer and the connection assembly 20 at least partially coincide when the partial wall layer and the connection assembly 20 are projected in the direction D1 into the projection plane.

For example, the first outer support wall 143 of the inner layer structure 14 of the first section 11 extends towards the second section 12, the first outer support wall 143 of the inner layer structure 14 of the second section 12 extends towards the first section 11 such that the first outer support walls 143 of the inner layer structure 14 of the first and second sections 11, 12 extend into the connection region 13 and partially overlap the connection assembly 20. The second outer support wall 153 of the outer layer structure 15 of the first section 11 extends towards the second section 12, the second outer support wall 153 of the outer layer structure 15 of the second section 12 extends towards the first section 11 such that the second outer support wall 153 of the outer layer structure 15 of the first section 11, the second section 12 extends into the connection region 13 and overlaps partly with the connection assembly 20. Preferably, a main body structure of the connection assembly 20 (e.g., a connection body 21 to be described later in detail) is positioned between the first outer support wall 143 and the second outer support wall 153 in the D1 direction, and the first outer support wall 143, the second outer support wall 153 are directly or indirectly connected to the outer support wall outer support walls.

It should be noted that, the term "directly connected" between two components in the present invention refers to directly connected together without connecting members or other mediums; "indirectly coupled" as opposed to "directly coupled" means that the two components may be joined together by a connection, and that other coupling media may also be present between the two components, not even necessarily in direct contact.

The invention also provides specific and preferred arrangements for the connection assembly. The connection assembly 20 includes, for example, a connection body 21, a first fixing member 22, a second fixing member 23, a first connection member 241, a second connection member 251, a filling member 26, and the like.

Referring to fig. 1, 2A and 2B, the connecting body 21 is positioned at the connecting region 13 of the respective outer layer structure 15 of the first and second sections 11, 12, the connecting body 21 may have an outer contour constituting a substantially cylinder, and its axis is perpendicular to the extension plane of the wall 100 when the connecting body 21 is properly mounted, that is to say the axis of the connecting body 21 extends in the direction d1+, D1-. The connection body 21 is provided with two first through holes 213 for receiving the first connection pieces 241, and may preferably be provided with wiring grooves 212. The wire groove 212 may extend through the connecting body 21 in the radial direction R1 of the connecting body 21 and the outer side of the wire groove 212 is open, i.e. the wire groove 212 is open on three sides, i.e. on both sides in the outer side as well as in the first radial direction R1, to allow cables or other structures to pass through it. It will be appreciated that the radial direction R1 shown in fig. 2B may be parallel to the D3 direction and the radial direction R2 may be parallel to the D2 direction.

In other embodiments, not shown, the connecting body 21 may have an outer contour that constitutes a cuboid, or other shape. In these embodiments, the connecting body may be provided with a wiring groove that opens outward, and the wiring groove penetrates the connecting body in a direction perpendicular to the connecting direction when viewed from the extension plane of the wall of the storage container.

Each first through hole 213 on the connecting body 21 extends through the connecting body 21 in a direction parallel to the axis X of the connecting body 21, and two first through holes 213 are symmetrically disposed about the axis X and are respectively adjacent to the adjacent first and second sections 11 and 12. The two first connecting pieces 241 are symmetrically disposed about the radial direction R1.

Preferably, the first connection member 241 for penetrating the first through hole 213 in the present embodiment may be a bolt assembly, and the first through hole 213 may be a smooth hole or a threaded hole of the inner support wall.

It is also preferred that the wiring groove 212 on the connecting body 21 has a specific size, for example, the size of the wiring groove 212 in the direction along the axis X is 1/2-4/5 of the size of the connecting body 21; the dimensions of the wiring groove 212 in the radial direction R2 are 1/5-1/3 of the dimensions of the connecting body 21. Experiments have shown that the wiring duct 212 with the above dimensions can meet the requirements for accommodating cables or other devices without affecting the overall rigidity of the connecting body 21, so that the connector assembly can be compatible with other devices near or on some storage containers while completing a firm connection of adjacent sections.

It will be appreciated that in actual production, the arrangement of the wiring slots 212 may be altered or eliminated depending on the needs of the user. In other words, in some embodiments, the connecting body may be provided with no wiring grooves or with wiring grooves of other shapes, sizes.

The inner end of the first connecting member 241 protrudes from the connecting body 21 and is locked to the first fixing member 22, and referring to fig. 3A, the first fixing member 22 may be provided with a second through hole 221 for receiving the inner end of the first connecting member 241. The outer ends of the first connecting pieces 241 also protrude from the connecting body 21 and are directly or indirectly locked to the respective second outer support walls 153 of the first and second sections 11, 12. As previously described, in the direction D1, the second outer support wall 153 and the connection assembly 20 partially overlap so that the outer ends of the first connectors 241 can engage with the first outer support wall 153 of the outer layer structure 15.

In assembly, the outer layer structure 15 may be secured to a substrate (not shown), such as a concrete substrate or a steel substrate, by means of a low temperature resistant glue strip 17. When assembling, the outer layer structure 15 can be placed on the base layer first, then the outer layer structure is pressed along the D1-direction, the low temperature resistant adhesive tape 17 is pressed, and the gap 16 at the low temperature resistant adhesive tape 17 disappears, so that the outer layer structure 15 is tightly attached to the concrete base layer. Preferably, an embedded plate 27 may be fixedly arranged at the outer side of the concrete base layer, and a nut member 242 is fixed on the embedded plate 27, wherein the nut member 242 is used for accommodating and locking the outer end of the first connector 241.

The connecting body 21, the first fixing member 22 in the present embodiment are connected to the portion of the connecting assembly 20 located at the inner layer structure 14 by the second connecting member 251. Specifically, referring to fig. 1 and 3A, the center of the first fixing member 22 may have a center through hole 222 partially accommodating the second connection member 251; referring to fig. 1 and 3B, the center of the second fixing member 23 may also have a center through hole 231 partially accommodating the second connection member 251. As previously mentioned, the first outer support wall 143 also has a portion overlapping the connection assembly 20 in the direction D1 of the wall, the outer support walls of the inner layer structure 14 of the first and second sections 11, 12 together defining a through hole for the second connector 251 to extend through only.

The second connector 251 may penetrate the first fixing member 22 and the second fixing member 23 to fixedly connect the two. The second connector 251 may be a stud, the inner end of which may protrude from the second fixture 23 and engage with a nut member 252, which nut member 252 may be secured within the filler 26. The structure of the filler 26 is shown for example in fig. 4, the filler 26 may comprise an insulating filler body made of PUF and a plywood layer 262 inside the filler body to provide support strength. The inner end of the second connector 252 is able to enter the filler piece via a receiving hole 261 in the filler piece 26 to engage the nut member 252.

In other embodiments, not shown, the inner and outer ends of the connecting body may be directly secured with the first portion first wall, the first portion second wall, respectively, without the need for a first connector. Alternatively, the first fixing member and the second fixing member may be directly fixed together without providing the second connecting member.

In addition to the arrangement of the connection elements, the individual layer structures can also have some preferred arrangement.

For example, as described above, the sub-shield layer 19 may be formed by connecting a plurality of sub-shield layer units. In some embodiments, adjacent secondary shielding layer units may be connected together by being secured to the inner support wall of the same outer layer structure. For example, referring to fig. 5, two adjacent secondary shielding layer units 191, 192 may be commonly fixed to the same second inner support wall 151 through the clip groove 151a, the clip strip 41, so that the secondary shielding layer units 191, 192 are connected as one body. Specifically, the second inner supporting wall 151 is provided with a clamping groove 151a for partially accommodating the clamping bar 41, the clamping bar 41 comprises a first part and a second part which form a T-shaped structure, the first part is accommodated in the clamping groove 151a, the second part extends to be engaged with the first outer supporting wall 143 of the inner layer structure 14, and the secondary shielding layer unit 191 is provided with a bending section 1911a at the clamping bar 41 and is attached to the second part of the clamping bar 41; the secondary shielding layer unit 192 has a bent section 1912a at the clip strip 41 to be attached to the second portion of the clip strip 41. Preferably, the second portion of the clip strip 41 and the bent section of the secondary shielding layer unit to which it is attached can be inserted together inwardly into the second inner support wall 151 of the inner layer structure 14. The card slot 151a, the card bar 41 are positioned to be spaced apart from the connection assembly 20.

In this embodiment, the primary barrier 18 extends entirely and continuously along the entire wall of the storage vessel to define a closed space configured to contain a liquefied gas; the integrally connected sub-shield layer 19 extends entirely and continuously along the extending direction of the entire wall to define another closed space between the sub-shield layer 19 and the main shield layer 18. The enclosed space enclosed by the primary shielding layer 18 itself is independent of the enclosed space defined by the primary shielding layer 18 and the secondary shielding layer 19 together. The double-insurance sealing mode can improve the air tightness of the storage container, thereby improving the safety performance of the storage container.

More preferably, a gap may exist between the first outer support wall 143 and the secondary shielding layer 19 such that the inner layer structure 14 and the outer layer structure 15 are spaced apart, and the thickness of the gap may be slightly less than or equal to the thickness of the secondary shielding layer 19.

In some embodiments, the first inner support wall 141 of the inner layer structure 14 and the planar plate 181 of the primary shielding layer 18 are detachably attached together by an anchor assembly. Detailed schematic views of the connection location 30 of the first inner support wall 141 and the main shield 18 are shown in fig. 6A and 6B.

Referring to fig. 6A and 6B, the anchor assembly includes an anchor 31 and an anchor receiver 32, wherein the anchor 31 is fixed on the slab 181 of the main shielding layer 18 and extends outwardly from the slab 181, and the anchor receiver 32 is provided on the first inner support wall 141 and has an opening toward the anchor 31 to form an anchor receiving slot 321. The anchor receiving grooves 321 and the anchors 31 are shaped such that the anchors 31 can be inserted into the anchor receiving grooves 321 in the insertion direction I and rotated by a predetermined angle (for example, 90 °) in the rotation direction S within the rotation plane defined by the D2 direction, D3 direction to reach the locked position.

In some embodiments, the anchor 31 may include an anchor body 311 protruding outward from the flat plate 181 and an anchor locking portion 312 protruding radially outward at an outer end of the anchor body 311, wherein the anchor body 311 is a cylinder extending parallel to the axis X of the connector body 21, and the axis of the anchor body itself is X1. The anchor locking portion 312 is an elongated structure protruding in the radial direction of the anchor body 311. Further, the anchor locking parts 312 may be plural, and the plural anchor locking parts 312 may be uniformly arranged around the anchor body 311. Alternatively, the anchor locking parts 312 may be two, and the two anchor locking parts 312 are symmetrically disposed about the axis X1 of the anchor body 311.

Preferably, the length of the anchor latch 312 (e.g., the dimension in the direction D2 shown in FIG. 6B) is 1/3-2/3 of the diameter of the anchor body 311; the thickness of the anchor latch 312 (e.g., the dimension in the d1+, D1-direction shown in fig. 6B) is 1/3-2/3 of the thickness of the anchor body 311, preferably the sum of the thickness of the anchor latch 312 and the thickness of the outer support wall of the anchor receiver 32 is approximately equal to the thickness of the anchor body 311; the width of the anchor lock 312 (e.g., its dimension in the D3 direction) is 1/5-1/3 of the diameter of the anchor body 311.

Also preferably, referring to fig. 6B, the anchor receiving member 32 is defined as a generally hollow structure having an anchor receiving slot 321 defined in a top wall (i.e., innermost wall) thereof, i.e., the anchor receiving slot 321 opens toward the inside. The anchor receiving slot 321 includes a circular portion that receives the anchor body 311 and an elongated portion 322 that receives the anchor lock 312. The anchor 31 can be aligned in shape with the anchor receiving slot 321 and such that the anchor lock 312 is inserted into the hollow interior 323 of the anchor lock 312, after which the anchor receiver 32 is rotated 90 ° relative to the anchor 31 in the direction of rotation S, at which time the anchor lock 312 will abut against the bottom surface 324 of the top wall of the anchor receiver 32 and thereby be restrained from disengagement relative to the anchor lock 312.

The specific sizing and configuration described above for the anchors 31, the anchor receiving slots 321 are the preferred setting obtained through repeated experimentation, the anchor assembly having the above-described sizing and configuration has a light weight, has a high operational sensitivity, and is also capable of ensuring sufficient strength to provide stable engagement between the flat plate and the first inner support wall.

In the present embodiment, the first inner support wall 141 (the first inner support wall 141 being, for example, a square-shaped section projected in the plane defined by the directions D2, D3), the anchor receiver 32 can be rotated relative to the flat plate 181, the anchor 31 during assembly, so that the anchor 31 is locked relative to the anchor lock 312. In other embodiments, the anchor assembly may also be configured to enable an operator to operate anchor 31 to lock it relative to anchor receiver 32, e.g., the plate may be rotated before plate 181 is spliced together with shield corrugation 182 to rotate anchor 31 relative to anchor receiving slot 32.

The wall of the storage container of the present invention may comprise a plurality of sections arranged in an array, and any pair of adjacent sections may have a connection between the first section 11 and the second section 12 as described above. For example, it will be appreciated that there may be a third section on one side of the first section 11 in the direction D3, and that there may also be a configuration as at the connection region 13 between the first section 11 and the third section, the first section 11 and the third section being connectable by means similar to the connection assembly 20.

In a further aspect the invention provides a method of assembling a wall of a storage container, the general steps of which are shown in figure 7, the method being described below in connection with figures 1 and 7. The method of assembling the wall of the storage container generally includes, in order, a preamble installation step S1, an outer layer structure installation step S2, a secondary shielding layer installation step S3, an inner layer structure installation step S4, and a primary shielding layer installation step S5.

The preamble installation step S1 includes fixing a portion of the connection assembly 20 to the base layer, for example, the pre-buried plate 27 may be provided on the base layer, and the nut member 242 of the connection assembly 20 may be fixedly provided to the pre-buried plate 27.

The outer layer structure mounting step S2 in turn includes a wall layer mounting step S21 and a mounting step S22 of the corresponding portion of the connection assembly. Specifically, the wall layer installation step S21 includes: the modular outer layer structure 15 of the first and second sections 11, 12 is fixed to the base layer, wherein the outer layer structure 15 is for example a modular combination of a prefabricated second outer support wall 153, a second insulating layer 152 and a second inner support wall 151. The mounting step S22 of the corresponding portion of the connection assembly may include: the connecting body 21 of the connecting assembly 20 is installed between the outer layer structures 15 of the first and second sections 11, 12, and the connecting body 21 and a portion of the connecting assembly are fixedly connected. The mounting step S22 of the corresponding portion of the connection assembly may specifically include: penetrating the bolt (i.e., the first connector 241) through the connection body 21, and allowing the outer end of the bolt to be locked by the nut member 242; and a first fixing member 22 is provided at the inner side of the connection body 21, and the inner end of the bolt is locked to the first fixing member 22.

The secondary shielding layer installation step S3 includes: the secondary shielding layer units are fixed to the outer side of the second inner supporting wall 151 of the outer layer structure 15, so that adjacent secondary shielding layer units are connected into an integrated secondary shielding layer 19, and the integrated secondary shielding layer 19 spans the first section 11, the second section 12 and the connection area 13 in the connection direction D2 of the first section 11 and the second section 12. It will be appreciated that in some embodiments, the step of disposing the secondary shielding layer 19 may be omitted.

The inner layer structure mounting step S4 in turn comprises a wall layer mounting step S41 and a mounting step S42 of the corresponding portion of the connection assembly. Wherein the wall layer installation step S41 includes: the modular inner layer structure 14 of the first section 11 is placed inside the outer layer structure 15 of the first section 11 and the modular inner layer structure 14 of the second section 12 is placed inside the outer layer structure 15 of the second section 12. The mounting step S42 of the corresponding structure of the connection assembly includes: another part of the connection assembly 20 is mounted between the outer layer structures 15 of the first and second sections 11, 12 and directly or indirectly connects the other part with the connection body 21. The mounting step S42 of the corresponding portion of the connection assembly may specifically include: the second fixing piece 23 is installed inside the first outer supporting wall 143 of the inner layer structure 14; the second fixing piece 23 and the first fixing piece 22 are connected together through a stud (namely a second connecting piece 251); a nut member 252 is provided on the inner side of the second fixture 23 for locking the inner end of the stud. This step may also include the step of installing the filler 26.

The main shield mounting step S5 includes disposing main shield units inside the inner layer structure 14 of the first and second sections 11, 12, and connecting the respective main shield units together to form an integrated main shield 18 spanning the first and second sections 11, 12 and the connection region 13 in the D2 direction.

The wall of the storage container provided by the invention is formed by connecting modularized sections through the connecting assembly, and the connecting assembly can realize stable connection of adjacent sections and is easy to detach and maintain later. Meanwhile, the connecting component provided by the invention also has the configuration which can be compatible with other structures such as cables, so that the connecting component can form part of the structure of a multifunctional integrated module. On the other hand, the individual modules of the wall of the storage container according to the invention also have a preferred configuration, are capable of achieving both sealing and insulation and have sufficient support strength themselves. The invention also provides various preferred arrangements of thickness, specific construction, connection means, etc. of the various functional layers of the various modules of the wall of the storage container.

The foregoing description of various embodiments of the invention has been presented for the purpose of illustration to one of ordinary skill in the relevant art. It is not intended that the invention be limited to the exact embodiment disclosed or as illustrated. As above, many alternatives and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the above teachings. Thus, while some alternative embodiments have been specifically described, those of ordinary skill in the art will understand or relatively easily develop other embodiments. The present invention is intended to embrace all alternatives, modifications and variations of the present invention described herein and other embodiments that fall within the spirit and scope of the invention described above.

Claims

1. A storage container for storing liquefied gas, the wall (100) of the storage container comprising at least two sections along its extension, each section comprising an inner layer structure (14) and an outer layer structure (15) stacked in the thickness direction of the wall, adjacent two sections (11, 12) of the at least two sections being connected by a connecting assembly (20) between a connecting region (13), the inner layer structure (14) and the outer layer structure (15) each comprising an outer support wall (143, 153), an inner support wall (141, 151) and an insulating layer (142, 152) between the outer support wall and the inner support wall,

the outer support walls of the adjacent two segments (11, 12) protrude from the inner support wall and the insulating layer in a connection direction (D2) of the two segments, wherein the inner layer structure (14), the outer support walls (143, 153) of the outer layer structure (15) each extend into the connection region (13) to overlap at least partially with the connection assembly (20), and the connection assembly (20) connects the outer support walls (143, 153) of the inner layer structure, the outer support walls (153) of the outer layer structure, respectively, of the adjacent two segments (11, 12) together in a thickness direction (D1) of the wall, and the wall further comprises a main shielding layer (18) arranged inside the inner layer structure, which extends across the adjacent two segments (11, 12) and the connection region (13) in the connection direction (D2) of the adjacent two segments,

Wherein the connection assembly (20) comprises:

-a connecting body (21), the connecting body (21) being positioned between the insulating layers (152) of the outer layer structure (15) of the two adjacent sections (11, 12), the connecting body (21) being provided with two first through holes (213) extending through the connecting body (21) in the thickness direction (D1), the two first through holes being respectively adjacent to the two adjacent sections (11, 12), the connecting body (21) being directly connected to the outer support wall (153) of the outer layer structure;

the two first connecting pieces (241) penetrate through the two first through holes (213) respectively, the outer ends of the two first connecting pieces are locked by a nut member (242) penetrating through the outer supporting wall (153) of the outer layer structure, and the inner ends of the first connecting pieces (241) are directly or indirectly fixedly connected with the outer supporting wall (143) of the inner layer structure.

2. The storage container of claim 1, wherein the container comprises a plurality of containers,

the connecting assembly (20) further comprises at least one fixing member (22, 23) located at the inner side of the connecting body, and the inner end of the first connecting member (241) is fixedly connected with the outer supporting wall (143) of the inner layer structure through the at least one fixing member.

3. The storage container of claim 2, wherein the container comprises a plurality of containers,

the at least one fastener includes:

-first fixing elements (22) positioned between inner supporting walls (151) of the outer layer structure (15) of the two adjacent sections (11, 12), the inner end of each first connecting element (241) being locked to the first fixing element (22);

a second fixing element (23) fixed inside an outer supporting wall (143) of the respective inner layer structure (14) of the two adjacent segments (11, 12);

and, the connection assembly further comprises a second connection member (251) configured to connect the first fixing member (22) and the second fixing member (23).

4. A storage container according to any one of claim 1 to 3, wherein,

the first connecting piece (241) is a bolt, and the connecting assembly (20) further comprises an embedded plate (27) positioned on the outer side of the outer supporting wall (153) of the outer layer structure, and the nut member is fixedly arranged on the inner side surface of the embedded plate.

5. The storage container of claim 3, wherein the container further comprises a storage means for storing the liquid,

The second connecting piece (251) is a stud, the first fixing piece (22) and the second fixing piece (23) are respectively provided with a central through hole (222, 231) extending along the axis (X) direction of the stud, and the second connecting piece (251) penetrates through the central through holes of the first fixing piece and the second fixing piece and is locked by a nut component (252) at the inner side of the second fixing piece.

6. The storage container of claim 5, wherein the container comprises a plurality of containers,

the connecting assembly (20) further comprises a filling piece (26) positioned on the inner side of the second fixing piece (23), a nut containing part which is open towards the outer side is arranged on the filling piece, the main body of the filling piece is of an insulating structure, and a wall (262) of the filling piece which is towards the main shielding layer is of a supporting structure.

7. The storage container according to any one of claims 1 to 3, 5 to 6, wherein,

the connecting body has an outer contour constituting a cylinder, the connecting body being positioned such that its axis is perpendicular to the wall (100), and the two first through holes are arranged radially symmetrically about the axis; or the connecting body has an outer contour constituting a rectangular parallelepiped.

8. The storage container of claim 7, wherein the container comprises a plurality of containers,

the connecting body (21) is provided with a wiring groove (212) which is open outwards, and the wiring groove penetrates through the connecting body along the vertical direction of the connecting direction (D2) when seen from the extension plane of the wall of the storage container.

9. The storage container of claim 8, wherein the container comprises a plurality of containers,

the dimensions of the wire grooves are 1/2-4/5 of the dimensions of the connecting body in the thickness direction (D1) of the wall; in the connection direction (D2), the dimension of the wiring groove is 1/5-1/3 of the dimension of the connection body.

10. The storage container according to any one of claims 1 to 3, 5 to 6, wherein,

for each of the outer layer structure and the inner layer structure: the thickness of the insulating layer is greater than that of the inner supporting wall; and/or the outer support wall and the inner support wall are made of the same material and the outer support wall has the same thickness as the inner support wall.

11. The storage container of claim 10, wherein the container comprises a plurality of containers,

for each of the outer layer structure and the inner layer structure: the inner supporting walls (141, 151) and the outer supporting walls are made of insulating plywood; the insulating layer (142, 152) is made of a PUF.

12. The storage container according to any one of claims 1 to 3, 5 to 6, wherein,

the main shielding layer comprises a flat plate (181) and shielding layer waves (182), the flat plate is detachably attached to the inner supporting wall (141) of the inner layer structure through an anchor assembly, and the shielding layer waves (182) are located on the inner side of the connecting area.

13. The storage container of claim 12, wherein the container is a container,

the anchor assembly includes an anchor (31) extending outward from the flat plate (181) and an anchor receiving groove (321) provided on the inner support wall (141) and opening toward the anchor, the anchor receiving groove (321) and the anchor (31) being shaped so that the anchor can be inserted into the anchor receiving groove and rotated by a predetermined angle in a rotation plane perpendicular to an insertion direction to reach a locking position.

14. The storage container of claim 13, wherein the container is a container,

the anchor (31) comprises an anchor body (311) protruding outward from the flat plate and an anchor locking portion (312) protruding radially outward at an outer end of the anchor body, wherein the anchor body (311) is a cylinder with an axis perpendicular to the wall, and the anchor locking portion (312) is an elongated structure protruding in a radial direction of the anchor body.

15. The storage container according to any one of claims 1 to 3, 5 to 6, wherein,

the wall (100) further comprises a secondary shielding layer (19) between the inner layer structure and the outer layer structure, the secondary shielding layer (19) extending across the first section (11), the second section (12) and the connection region (13) along a connection direction (D2) of the first section (11), the second section (12) of the two adjacent sections.

16. The storage container of claim 15, wherein the container comprises a plurality of containers,

the secondary shield (19) is formed by connecting a plurality of secondary shield units, and adjacent secondary shield units (191, 192) are connected together by being fixed to the inner support wall (151) of the same outer layer structure, and,

the primary shield extends entirely continuously along the entire wall of the storage vessel to define a closed space configured to contain liquefied gas; the secondary shield integrally connected therewith extends entirely continuously along the extending direction of the entire wall to define another enclosed space between the secondary shield and the primary shield independent of the enclosed space.

17. The storage container of claim 16, wherein the container comprises a plurality of containers,

the inner supporting wall (151) of the outer layer structure is provided with a clamping groove (151 a) for partially accommodating the clamping strip (41), the clamping strip (41) comprises a first part and a second part which form a T-shaped structure, the first part is accommodated in the clamping groove (151 a), the second part extends to be jointed with the outer supporting wall (143) of the inner layer structure, and the adjacent secondary shielding layer units (191, 192) are respectively provided with bending sections (1911 a, 1912 a) at the clamping strip positions and are jointed with the second part of the clamping strip and welded together.

18. The storage container of claim 15, wherein the container comprises a plurality of containers,

a space is present between the secondary shielding layer (19) and the inner layer structure (14).

19. The storage container of claim 1, wherein the container comprises a plurality of containers,

the wall includes a plurality of sections arranged in an array.

20. A method of assembling a wall of a storage container according to any one of claims 1 to 19, characterized in that,

the method comprises the following steps:

a preamble installation step (S1) including fixing a portion of the connection assembly to the base layer;

An outer layer structure mounting step (S2) of:

fixing the modular outer layer structure of the first and second sections to the base layer (S21);

installing a connecting body of the connecting assembly between the outer layer structures of the first and second sections and fixedly connecting the connecting body and the portion of the connecting assembly (S22);

an inner layer structure mounting step (S4) of:

placing the modular inner layer structure of the first section inside the outer layer structure of the first section and the modular inner layer structure of the second section inside the outer layer structure of the second section (S41);

installing another portion of the connection assembly between the outer layer structures of the first and second sections and directly or indirectly connecting the another portion with the connection body (S42); and

and a main shielding layer installation step (S5) comprising arranging a main shielding layer on the inner side of the inner layer structure of the first section and the second section.

21. The method of claim 20, wherein the step of determining the position of the probe is performed,

The preamble installation step (S1) includes: fixing the embedded plate on the concrete base layer; installing a nut member on the top of the embedded plate;

and, the outer layer structure mounting step (S2) includes:

22. The method of claim 21, wherein the step of determining the position of the probe is performed,

the inner layer structure mounting step (S4) includes:

23. The method according to any one of claims 20-22, wherein,

the method further includes a secondary shielding layer installation step (S3) between the outer layer structure installation step and the inner layer structure installation step, the secondary shielding layer installation step including: the secondary shielding layer units are fixed on the outer side of the inner supporting wall of the outer layer structure, so that adjacent secondary shielding layer units are connected into an integrated secondary shielding layer, and the integrated secondary shielding layer spans the first section, the second section and the connecting area in the connecting direction of the first section and the second section.