Perlite retaining wall structure of low-temperature storage tank

Abstract

The utility model discloses a low-temperature storage tank perlite retaining wall structure which comprises a vault plate, a suspended top plate and a retaining wall structure, the suspended top plate is arranged below the vault plate, a filling cavity is formed among the retaining wall structure, the vault plate, a vault beam and an outer tank wall of the suspended top plate, the retaining wall structure comprises a baffle, and the baffle extends in the axial direction of an outer tank and is installed on the vault plate. The retaining wall structure further comprises at least one section of glass wool cloth, one side of the glass wool cloth is connected with the baffle, the other side of the glass wool cloth is connected with the suspended top plate, the retaining wall structure further comprises at least one section of stainless steel mesh, the bottom of the stainless steel mesh makes contact with the suspended top plate, and the stainless steel mesh is used for supporting the glass wool cloth. With the adoption of the mode, the impact of expanded perlite blown into the filling cavity on the glass wool cloth can be greatly reduced under the action of the baffle plate, so that the situation that the glass wool cloth is cracked due to impact is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of internal enclosing of cryogenic storage tanks, and more specifically, to a perlite retaining wall structure for cryogenic storage tanks Background Technique

[0002] Cryogenic flat-bottom storage tanks are widely used in the storage of cryogenic media, such as cryogenic liquid hydrogen, cryogenic liquid nitrogen, liquefied natural gas, etc. Due to the cryogenic characteristics of the stored media, such as the storage temperature of cryogenic liquid hydrogen being -252.78 °C, the storage temperature of liquid nitrogen being -196 °C, and the storage temperature of liquefied natural gas being -161.25 °C, the cold insulation structure of the storage tank directly affects the safety and economy of the storage tank

[0003] Among them, the perlite filling in the annular space between the inner and outer tanks of the cryogenic storage tank is one of the most important structures of the storage tank

[0004] The perlite in the annular space is usually blown into the tank after being expanded on-site. However, the temperature of the perlite expanded on-site is relatively high, which is extremely easy to blow the glue of the retaining wall fiberglass cloth, resulting in perlite leaking into the ceiling space or even the inner tank space. This not only affects the cold insulation performance but may also pollute the interior and even affect the equipment and pipeline system

[0005] In summary, how to provide a structure that can avoid the retaining wall cracking during filling and causing the filling material to pollute the inner tank space is an urgent problem to be solved by those skilled in the art at present Content of the Utility Model

[0006] In view of this, the purpose of the utility model is to provide a perlite retaining wall structure for cryogenic storage tanks, which can improve the fixing property of the retaining wall and avoid the leakage of perlite during the filling process

[0007] To achieve the above purpose, the utility model provides the following technical solutions

[0008] A perlite retaining wall structure for cryogenic storage tanks, characterized by comprising

[0009] An arch roof plate

[0010] Arch roof beams, which are circumferentially arrayed along the axis of the arch roof plate and installed on the arch roof plate

[0011] A suspended roof plate, which is arranged below the arch roof plate

[0012] A retaining wall structure, and a filling cavity is formed among the retaining wall structure, the arch roof plate, the arch roof beams and the suspended roof plate

[0013] The retaining wall structure includes a baffle, and the baffle extends along the circumferential direction of the arch roof plate and is installed between two adjacent arch roof beams

[0014] The retaining wall structure further includes at least one section of fiberglass cloth, one side of the fiberglass cloth is connected to the baffle, and the other side of the fiberglass cloth is connected to the suspended roof plate;

[0015] The retaining wall structure further includes at least one section of stainless steel mesh, and the bottom of the stainless steel mesh contacts the suspended roof plate;

[0016] The stainless steel mesh supports the fiberglass cloth.

[0017] Furthermore, the present utility model further includes:

[0018] A suspended roof tie rod, one end of the suspended roof tie rod is fixed to the vault beam, the other end of the suspended roof tie rod is fixed to the suspended roof plate, the fiberglass cloth is located on the left side of the suspended roof tie rod, and the stainless steel mesh is located between the fiberglass cloth and the suspended roof tie rod.

[0019] Furthermore, the present utility model further includes:

[0020] Binding wire, used to fix the stainless steel mesh to the suspended roof tie rod;

[0021] A second stop block, which is arranged on the suspended roof tie rod and used to limit the binding wire.

[0022] Furthermore, in the present utility model, the stainless steel mesh is in multiple sections, and the lap joints of the multiple sections of the stainless steel mesh are all located at the suspended roof tie rod.

[0023] Furthermore, the present utility model further includes:

[0024] A first stop block, which is arranged on the vault beam and used to position and fix the installation of the baffle.

[0025] Furthermore, the present utility model further includes:

[0026] A first connecting plate, which is arranged on the vault beam;

[0027] A second connecting plate, which is fixed to the first connecting plate;

[0028] Clamping plates, two of the clamping plates are fixed to the second connecting plate;

[0029] Bolts, used to fix the two clamping plates to the second connecting plate;

[0030] The fiberglass cloth passes through between the two clamping plates, and the bolts pass through the fiberglass cloth to lock the two clamping plates.

[0031] Furthermore, when the bolts pass through the fiberglass cloth, a split fiber reaming method is adopted to prevent the fiberglass cloth fibers from being cut off.

[0032] Furthermore, for the present utility model, two longitudinally adjacent sections of the fiberglass cloth are longitudinally lapped, and the lapping length is not less than 150 mm. The lapping part of the two sections of the fiberglass cloth is bonded with a low-temperature adhesive, and the lapping part of the two sections of the fiberglass cloth is strengthened and fixed by a stitching and fixing method.

[0033] Furthermore, for the present utility model, the protruding part of the fiberglass cloth on the side higher than the clamping plate is bonded to the arch roof plate with a low-temperature adhesive, and the bonding length between the side of the fiberglass cloth higher than the clamping plate and the arch roof plate is not less than 300 mm.

[0034] Furthermore, for the present utility model, it further includes:

[0035] a zipper, which is arranged on the fiberglass cloth and is used to open the fiberglass cloth to observe the filling height inside the filling cavity.

[0036] In the perlite retaining wall structure of the cryogenic storage tank provided by the present utility model, during use, a filling cavity is formed between the retaining wall structure, the arch roof plate, the arch roof beam and the hanging roof plate. After expansion, perlite dust is blown into the filling cavity through a filling hole to realize the filling of expanded perlite. The retaining wall structure includes a baffle, the baffle extends along the circumferential direction of the outer tank and is installed on the arch roof plate. The retaining wall structure further includes at least one section of fiberglass cloth, one side of the fiberglass cloth is connected to the baffle, and the other side of the fiberglass cloth is connected to the hanging roof plate. By adopting the above method, the impact of the expanded perlite blown into the filling cavity on the fiberglass cloth can be greatly reduced under the action of the baffle, thereby avoiding the situation that the fiberglass cloth is cracked by the impact. At the same time, the retaining wall structure further includes at least one section of stainless steel mesh, one side of the stainless steel mesh is connected to the hanging roof plate, and the stainless steel mesh is used to support the fiberglass cloth. Under the supporting action of the stainless steel mesh, the stability of the fiberglass cloth can be further improved to avoid cracking during the filling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0038] Figure 1 It is a structural schematic diagram of the specific implementation and installation method provided by the present utility model;

[0039] Figure 2 Provided by the present utility model Figure 1 The enlarged structural schematic diagram at B in;

[0040] Figure 3 Provided by the present utility modelFigure 2 Schematic diagram of the enlarged structure at position C;

[0041] Figure 4 Provided by the present utility model Figure 2 Schematic diagram of the enlarged structure at position D;

[0042] Figure 5 Provided by the present utility model Figure 1 Schematic diagram of the sectional structure from position A.

[0043] Figure 6 Provided by the present utility model Figure 5 Schematic diagram of the sectional structure from position F;

[0044] Figure 7 Provided by the present utility model Figure 5 Schematic diagram of the enlarged structure at position E;

[0045] Figure 8 Schematic diagram of the specific installation position structure of the baffle provided by the present utility model;

[0046] Figures 1-8 In the figure, the reference numerals include:

[0047] 1 is the arch roof plate, 2 is the hanging roof plate, 3 is the hanging roof tie rod, 4 is the retaining wall structure, 401 is the fiberglass cloth, 402 is the baffle, 403 is the stainless steel mesh, 404 is the first stop block, 405 is the first connecting plate, 406 is the second connecting plate, 407 is the clamping plate, 408 is the bolt, 5 is the filling cavity, 6 is the tying wire, 7 is the second stop block, 8 is the zipper, 9 is the arch roof beam. Specific embodiments

[0048] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0049] The core of the present utility model is to provide a perlite retaining wall structure for a cryogenic storage tank to improve the filling effect and efficiency when filling perlite into the cryogenic tank.

[0050] Please refer to Figures 1-8, an embodiment of the present utility model provides a perlite retaining wall structure for a cryogenic storage tank, which includes an arch roof 1, a suspended roof 2, a retaining wall structure 4, a baffle 402, a fiberglass cloth 401 and a stainless steel mesh 403. The suspended roof 2 is arranged below the arch roof 1. A filling cavity 5 is formed between the retaining wall structure 4, the arch roof 1 and the suspended roof 2. The retaining wall structure 4 includes a baffle 402. The baffle 402 extends along the axial direction of the outer tank and is installed on the arch roof 1. The retaining wall structure 4 further includes at least one section of fiberglass cloth 401. One side of the fiberglass cloth 401 is connected to the baffle 402, and the other side of the fiberglass cloth 401 is connected to the suspended roof 2. The retaining wall structure 4 further includes at least one section of stainless steel mesh 403. One side of the stainless steel mesh 403 is connected to the suspended roof 2, and the stainless steel mesh 403 is used to support the fiberglass cloth 401.

[0051] During use, a filling cavity 5 is formed between the retaining wall structure 4, the arch roof 1, the arch roof beam 9 and the suspended roof 2. After the perlite dust expands, it is blown into the filling cavity 5 through the filling hole to achieve the filling of expanded perlite. The wall structure includes a baffle 402. The baffle 402 extends along the axial direction of the outer tank and is installed on the arch roof 1. The retaining wall structure 4 further includes at least one section of fiberglass cloth 401. One side of the fiberglass cloth 401 is connected to the baffle 402, and the other side of the fiberglass cloth 401 is connected to the suspended roof 2. By adopting the above method, the impact of the expanded perlite blown into the filling cavity 5 on the fiberglass cloth 401 can be greatly reduced under the action of the baffle 402, thereby avoiding the situation that the fiberglass cloth 401 is cracked by the impact. At the same time, the retaining wall structure 4 further includes at least one section of stainless steel mesh 403. One side of the stainless steel mesh 403 is connected to the suspended roof 2, and the stainless steel mesh 403 is used to support the fiberglass cloth 401. Under the support of the stainless steel mesh 403, the stability of the fiberglass cloth 401 can be further improved to avoid cracking during the filling process.

[0052] It should be noted that the embodiment of the present utility model does not specifically limit the connection method between the baffle 402 and the arch roof 1. In some embodiments, the baffle 402 can be fixedly installed on the arch roof 1 or detachably installed on the fixed roof. The fixing method can adopt welding, riveting, bonding and other methods, and the detachable method can adopt bolts 408 or clamping methods.

[0053] It should be noted that in the embodiment of the present utility model, the arch roof beam 9 is installed on the arch roof 1 to enhance the strength of the arch roof 1 and is circumferentially arranged in an array along the axis of the arch roof 1, while the baffle 402 is Figure 8 installed between two adjacent arch roof beams 9 as shown and is hermetically connected to both the arch roof beam and the fixed plate.

[0054] In addition, the specific material of the baffle 402 in the embodiments of the present utility model is not limited, as long as it can block the filled perlite. In some embodiments, the baffle 402 can be made of plywood or other materials.

[0055] In addition, in the embodiments of the present utility model, the arch roof plate 1 is installed on the top of the outer tank of the cryogenic tank. At the same time, in the embodiments of the present utility model, the suspended roof plate 2 only refers to the component name and does not specifically refer to a plate-like structure. In actual use, it can be the outer surface of the inner tank of the cryogenic tank, or other structures that can form the filling cavity 5 with the arch roof plate 1 and the retaining wall structure 4.

[0056] Please refer to Figure 1 and Figure 7 , in order to further improve the supporting effect of the stainless steel mesh 403 on the fiberglass cloth 401, by setting the suspended roof tie rod 3, and the number of the suspended roof tie rods 3 is the same as the number of the radial cross beams of the arch roof plate. One end of the suspended roof tie rod 3 is fixed on the arch roof beam 9, and the other end of the tie rod is fixed on the suspended roof plate 2. The fiberglass cloth 401 is located on the left side of the suspended roof tie rod 3, and the stainless steel mesh 403 is located between the fiberglass cloth 401 and the suspended roof tie rod 3. That is to say, the suspended roof tie rod 3 is fixed between the arch roof plate 1 and the suspended roof plate 2. The fiberglass cloth 401 is arranged outside the suspended roof tie rod 3, while the stainless steel mesh 403 is placed between the fiberglass cloth 401 and the suspended roof tie rod 3. The suspended roof tie rod 3 supports the stainless steel mesh 403, and a plurality of suspended roof tie rods 3 are arranged at intervals, so that the deformation amount of the stainless steel mesh 403 between two adjacent suspended roof tie rods 3 is smaller, which is beneficial to improving its support for the fiberglass cloth 401.

[0057] It should be noted that the interval length between adjacent suspended roof tie rods 3 in the embodiments of the present utility model is not specifically limited, as long as it can effectively support the stainless steel mesh 403 during use.

[0058] In addition, the overlapping range between the fiberglass cloth 401 and the stainless steel mesh 403 in the embodiments of the present utility model is not specifically limited, as long as it can effectively support the fiberglass cloth 401 when the filling height is satisfied. In some embodiments, the overlapping height between the fiberglass cloth 401 and the stainless steel mesh 403 is not less than 1500 mm.

[0059] Please continue to refer to Figure 6 and Figure 7, in some embodiments, it further includes binding wire 6 for fixing the stainless steel mesh 403 on the suspended roof tie rod 3. That is to say, through the binding wire 6, the stainless steel mesh 403 is further fixed to reduce the situation of its shaking and position deviation, which is beneficial to its supporting effect on the fiberglass cloth 401. In some embodiments, it further includes a second stop block 7 provided on the suspended roof tie rod 3 for limiting the binding wire 6. That is to say, when in use, the stainless steel mesh 403 is fixed at the position of the second stop block 7 through the binding wire 6, and the binding wire 6 is tied tightly with the second baffle 402, which is beneficial to further restricting the fixed position of the stainless steel mesh 403.

[0060] Further, please continue to refer to Figure 4 , in some embodiments, the stainless steel mesh 403 is in multiple segments, and the lap joints of the multiple segments of the stainless steel mesh 403 are all located at the suspended roof tie rod 3. That is to say, in actual use, since the space inside the tank is annular, and the shapes of the head and tail positions are irregular, and the size of the wire mesh does not meet the requirements, multiple segments of the stainless steel mesh 403 need to be spliced and used. The splicing position of the stainless steel mesh 403 is set at the suspended roof tie rod 3 to improve the firmness of the splicing position.

[0061] It should be noted that the description of the binding wire 6 in the embodiments of the present invention is not limited to only using the binding wire 6. In some embodiments, other materials that can complete the fixation of the stainless steel mesh 403 can also be used.

[0062] In addition, the specific material of the second stop block 7 in the embodiments of the present invention is not specifically limited. In some embodiments, as long as it can be fixed on the suspended roof tie rod 3, for example, stainless steel material can be used and fixed on the suspended roof tie rod 3 by welding.

[0063] Please refer to Figure 2 and Figure 3 , in order to improve the stability and accuracy of the baffle 402 during installation, a first stop block 404 is used, which is provided on the arch top beam 9 for positioning and fixing the installation of the baffle 402. That is to say, the baffle 402 is fixed by the first stop block 404 to improve its stability and accuracy during installation.

[0064] It should be noted that the specific material of the first stop block 404 in the embodiments of the present invention is not limited. In some embodiments, it can adopt a material that can be welded and fixed to the arch top plate 1, such as carbon steel, etc.

[0065] Please refer to Figure 2, during actual implementation, due to the irregularity of the annular space inside the tank, it is necessary to cut the fiberglass cloth 401 into appropriate segments. This embodiment demonstrates the fixed connection method between two adjacent segments of the fiberglass cloth 401, including a first connecting plate 405, a second connecting plate 406, a clamping plate 407, and a bolt 408. The first connecting plate 405 is provided on the arch top beam 9, the second connecting plate 406 is fixed to the first connecting plate 405, the clamping plate 407, two clamping plates 407 are fixed to the second connecting plate 406, and the bolt 408 is used to fix the two clamping plates 407 to the second connecting plate 406. That is to say, the first connecting plate 405 and the second connecting plate 406 are fixedly connected, and the first connecting plate 405 is fixed on the arch top beam 9. The two clamping plates 407 are fixed to the second connecting plate 406 through the bolt 408, and the bolt 408 passes through the fiberglass cloth 401. The two clamping plates 407 clamp and fix the fiberglass cloth 401. The overlapping part of the two segments of the fiberglass cloth 401 is located between the two clamping plates 407. The bolt 408 passes through the fiberglass cloth 401 to lock the two clamping plates 407, so as to increase the connection strength between the two segments of the fiberglass cloth 401. The connection part of the two segments of the fiberglass cloth 401 is arranged between the two clamping plates 407, thereby avoiding the direct impact on the connection part when filling perlite, and greatly improving the stability of the fiberglass cloth 401.

[0066] It should be noted that the embodiment of the present invention does not limit whether an anti-slip surface is provided on the opposite surfaces of the two clamping plates 407.

[0067] It should be noted that in the embodiment of the present invention, the multi-segment fiberglass cloth 401 described is vertically connected. Therefore, its overlapping position is vertically overlapped along the fiberglass cloth 401.

[0068] In addition, the fixing method of the first connecting plate 405 to the arch top beam 9 and the connection method between the first connecting plate 405 and the second connecting plate 406 are not specifically limited. In some embodiments, the first connecting plate 405 can be fixed to the arch top beam 9 by welding, and the second connecting plate 406 and the first connecting plate 405 can be fixed by bolts 408. And after filling, the bolts 408 between the second connecting plate 406 and the first connecting plate 405 can be locked by spot welding.

[0069] Please refer to Figure 5 , in order to further improve the connection stability between the two segments of the fiberglass cloth 401, by adopting an overlapping length of not less than 150 mm between adjacent two segments of the fiberglass cloth 401, the overlapping part of adjacent two segments of the fiberglass cloth 401 is bonded with a low-temperature adhesive, and the overlapping part of adjacent two segments of the fiberglass cloth 401 is strengthened and fixed by a stitching and fixing method. That is to say, by adopting Figure 5In the manner shown, the lap length of adjacent two sections of fiberglass cloth 401 is restricted to be not less than 150 mm, and the lap joint is bonded with a low-temperature adhesive to improve the firmness of the lap position, and the lap joint of adjacent two sections of fiberglass cloth 401 is further fixed by a stitching method.

[0070] Please continue to refer to Figure 3 , in some embodiments, the protruding part of the fiberglass cloth 401 on the side higher than the clamping plate 407 is bonded to the arch roof plate 1 with a low-temperature adhesive, and the length of the protruding part of the fiberglass cloth 401 on the side higher than the clamping plate 407 is not less than 300 mm. That is to say, one side of the upper fiberglass cloth 401 is extended and bonded to the arch roof plate 1 to improve its sealing effect and further prevent the leakage of expanded perlite.

[0071] Please refer to Figure 7 , to further facilitate the user to use and observe the filling situation, a zipper 8 is provided on the fiberglass cloth 401 for opening the fiberglass cloth 401 to observe the internal filling situation and measure the filling height. That is to say, the zipper 8 can partially open the fiberglass cloth 401 for the user to observe and measure the filling situation inside the filling cavity 5.

[0072] It should be noted that the use of the zipper 8 in the embodiments of the present invention is not fixedly restricted. In some embodiments, other structures that can realize the opening and closing of the fiberglass cloth 401 can be adopted.

[0073] That is to say, the key point of the embodiments of the present invention is that: a filling cavity 5 is formed between the retaining wall structure 4, the arch roof plate 1, the arch roof beam 9 and the hanging roof plate 2, and the expanded perlite dust is blown into the filling cavity 5 through the filling hole to realize the filling of expanded perlite. The wall structure includes a baffle 402, the baffle 402 extends along the circumferential direction of the arch roof plate 1 and is installed on the arch roof plate 1. The retaining wall structure 4 further includes at least one section of fiberglass cloth 401. One side of the fiberglass cloth 401 is connected to the baffle 402, and the other side of the fiberglass cloth 401 is connected to the hanging roof plate 2. By adopting the above method, the impact of the expanded perlite blown into the filling cavity 5 on the fiberglass cloth 401 can be greatly reduced under the action of the baffle 402, thereby avoiding the situation that the fiberglass cloth 401 is cracked by the impact. At the same time, the retaining wall structure 4 further includes at least one section of stainless steel mesh 403. One side of the stainless steel mesh 403 is connected to the hanging roof plate 2, and the stainless steel mesh 403 is used to support the fiberglass cloth 401. Under the supporting action of the stainless steel mesh 403, the stability of the fiberglass cloth 401 can be further improved to avoid the cracking situation during the filling process.

[0074] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0075] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0076] The above has introduced in detail the perlite retaining wall structure of the cryogenic storage tank provided by the present utility model. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A perlite retaining wall structure for a low-temperature storage tank, characterized in that, Including: Arch roof plate (1); Arch roof beams (9), which are circumferentially arrayed along the axis of the arch roof plate (1) and installed on the arch roof plate (1); Suspended roof plate (2), which is arranged below the arch roof plate (1); Retaining wall structure (4), a filling cavity (5) is formed among the retaining wall structure (4), the arch roof plate (1), the arch roof beams (9) and the suspended roof plate (2); The retaining wall structure (4) includes a baffle (402), and the baffle (402) extends along the circumferential direction of the arch roof plate and is installed between two adjacent arch roof beams (9); The retaining wall structure (4) further includes at least one section of fiberglass cloth (401), one side of the fiberglass cloth (401) is connected to the baffle (402), and the other side of the fiberglass cloth (401) is connected to the suspended roof plate (2); The retaining wall structure (4) further includes at least one section of stainless steel mesh (403), and the bottom of the stainless steel mesh (403) contacts the suspended roof plate (2); The stainless steel mesh (403) supports the fiberglass cloth (401).

2. The perlite retaining wall structure of a cryogenic storage tank according to claim 1, wherein It further includes: Suspended roof tie rod (3), one end of the suspended roof tie rod (3) is fixed on the arch roof beam (9), the other end of the suspended roof tie rod (3) is fixed on the suspended roof plate (2), the fiberglass cloth (401) is located on the left side of the suspended roof tie rod (3), and the stainless steel mesh (403) is located between the fiberglass cloth (401) and the suspended roof tie rod (3).

3. The perlite retaining wall structure of a cryogenic storage tank according to claim 2, characterized in that, It further includes: Binding wire (6), which is used to fix the stainless steel mesh (403) on the suspended roof tie rod (3); Second stop block (7), which is arranged on the suspended roof tie rod (3) and used to limit the binding wire (6).

4. The perlite retaining wall structure of a cryogenic storage tank according to claim 3, characterized in that, The stainless steel mesh (403) is in multiple sections, and the lap joints of the multiple sections of the stainless steel mesh (403) are all located at the suspended roof tie rod (3).

5. The perlite retaining wall structure of a cryogenic storage tank according to claim 1, characterized in that, It further includes: First stop block (404), which is arranged on the arch roof beam (9) and used to position and fix the installation of the baffle (402).

6. The perlite retaining wall structure of a cryogenic storage tank according to claim 2, characterized in that, It further includes: First connecting plate (405), which is arranged on the arch roof beam (9); Second connecting plate (406), which is fixed on the first connecting plate (405); Clamping plates (407), two clamping plates (407) are fixed on the second connecting plate (406); Bolts (408), which are used to fix the two clamping plates (407) on the second connecting plate (406); The fiberglass cloth (401) passes between the two clamping plates (407), and the bolts (408) pass through the fiberglass cloth (401) to lock the two clamping plates (407).

7. A perlite retaining wall structure for a low-temperature storage tank according to claim 6, characterized in that, When the bolts (408) pass through the fiberglass cloth (401), the method of separating fiber reaming is adopted to prevent the fibers of the fiberglass cloth (401) from being cut off.

8. The perlite retaining wall structure of a cryogenic storage tank according to claim 7, characterized in that, For two adjacent sections of the fiberglass cloth (401) on the longitudinal sides, they are longitudinally overlapped along the fiberglass cloth (401), and the overlap length is not less than 150 mm. The overlapping part of the two sections of the fiberglass cloth (401) is bonded with a low-temperature adhesive, and the overlapping part of the two sections of the fiberglass cloth (401) is strengthened and fixed by a stitching and fixing method.

9. The perlite retaining wall structure of a cryogenic storage tank according to claim 8, characterized in that, The protruding part of the fiberglass cloth (401) on the side higher than the clamping plate (407) is bonded to the arch roof plate (1) with a low-temperature adhesive, and the bonding length between the side of the fiberglass cloth (401) higher than the clamping plate (407) and the arch roof plate (1) is not less than 300 mm.

10. A perlite retaining wall structure for a cryogenic storage tank according to any one of claims 1-9, characterized in that, It further includes: A zipper (8) provided on the fiberglass cloth (401) for opening the fiberglass cloth (401) to observe the filling height inside the filling cavity.

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