Supporting structure for double-layer low-temperature spherical tank

Abstract

The utility model discloses a supporting structure for a double-layer low-temperature spherical tank, and relates to the technical field of chemical engineering and new energy, the supporting structure comprises a plurality of supporting members with the same structure, which are uniformly distributed at the bottom of an outer tank body along the circumference; each supporting component comprises a supporting column bottom plate, a supporting column and an outer sleeve pipe fitting. The bottoms of the supporting columns are fixed to the supporting column bottom plate, a plurality of avoiding holes with the diameter larger than that of the supporting columns are formed in the outer tank body, and the tops of the supporting columns penetrate through the corresponding avoiding holes in the outer tank body and are fixed to the outer wall of the inner tank body. The outer sleeve pipe fitting is arranged on the supporting column located below the outer tank body in a sleeving mode, and the top of the outer sleeve pipe fitting is welded to the position, corresponding to the receding hole, of the outer tank body in a sealed mode; the bottom of the outer sleeve pipe fitting is welded to the supporting column in a sealed mode. The supporting column is connected with the outer tank body through the outer sleeve pipe fitting, and large supporting stress generated by direct connection of the outer tank body and the supporting column is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical industry and new energy, more particularly to a kind of support structure for double-layer low temperature spherical tank technical field. BACKGROUND

[0002] Liquid hydrogen storage tank, for storing liquid hydrogen cryogenic container. Generally by inner bag, shell, adiabatic structure and connecting mechanical components. Prior art discloses the following technology:

[0003] Patent with publication number CN115046128A, patent name "a kind of spherical liquid hydrogen storage tank" discloses the following contents: including: inner tank, liquid hydrogen is stored in inner tank;Outer tank, outer tank is set at the outer periphery of the inner tank, is pre-stressed concrete structure;Cold insulation layer, cold insulation layer is filled in the spherical annular space between inner tank and outer tank, cold insulation layer is formed by heap load type cold insulation material;Air-tight layer;Air-tight layer is arranged between cold insulation layer and outer tank. The structure of pre-stressed concrete structure spherical liquid hydrogen storage tank can meet the safety reliability requirements, while breaking through the volume limit of large volume liquid hydrogen storage tank.

[0004] The above-mentioned patent discloses some kinds of liquid hydrogen storage tank, since the support of double-layer low temperature spherical tank usually needs to pass through spherical outer tank to support spherical inner tank, when the medium is low temperature, since the support and the spherical outer tank are connected, it is easy to cause cold loss, and the support and the spherical inner and outer tank are directly connected, which is easy to cause large temperature difference stress, resulting in damage to the connection. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the above technical problem, the utility model provides a kind of support structure for double-layer low temperature spherical tank.

[0006] The utility model discloses the following technical scheme in order to realize the above-mentioned purpose:

[0007] The utility model provides a kind of support structure for double-layer low temperature spherical tank, double-layer low temperature spherical tank also includes containing outer tank body and the inner tank body of the outer tank body inside set, the support structure includes the multiple structural same support members that are evenly distributed in the outer tank body bottom according to circumference;

[0008] Each support member includes support column bottom plate, support column and outer sleeve pipe spare;The support column bottom plate is fixed in the inner bottom of the vertical storage tank body, the support column bottom is fixed on the support column bottom plate, the outer tank body is provided with multiple avoiding holes with the diameter greater than the diameter of the support column, the support column top passes through the corresponding avoiding hole on the outer tank body and is fixed on the outer wall of the inner tank body;

[0009] The outer sleeve is sleeved on the support column below the outer tank, and the top of the outer sleeve is sealingly welded to the outer tank at the corresponding avoiding hole; and the bottom of the outer sleeve is sealingly welded to the support column.

[0010] Specifically, the support column is connected with the outer tank through the outer sleeve, thereby avoiding large support stress caused by the direct connection between the outer tank and the support column.

[0011] In an embodiment, a support gap is formed between the outer sleeve and the support column, and the support gap is filled with a support heat insulation material.

[0012] Specifically, the support gap between the outer sleeve and the support column is filled with the heat insulation material, thereby avoiding damage to the connection between the outer tank and the outer sleeve caused by excessive temperature difference stress.

[0013] In an embodiment, a support column bracket is arranged in a vacuum cavity formed between the outer tank and the inner tank, and the support column bracket is connected between the outer wall of the inner tank and the support column.

[0014] Specifically, the support column bracket is arranged inside the connection between the support column and the inner tank, thereby avoiding damage to the connection between the inner tank and the support column caused by excessive temperature difference stress.

[0015] In an embodiment, a sleeve bracket is further arranged, and the sleeve bracket is connected between the outer wall of the outer tank and the outer sleeve.

[0016] Specifically, the sleeve bracket is arranged inside the connection between the outer sleeve and the outer tank, thereby avoiding damage to the connection between the outer tank and the outer sleeve caused by excessive temperature difference stress.

[0017] In an embodiment, the outer sleeve comprises a tapered sealing sleeve at the upper portion and a tapered sealing head at the lower portion, and the tapered sealing sleeve and the tapered sealing head are integrally formed.

[0018] In an embodiment, the diameter of the tapered sealing sleeve is the same as the large diameter of the tapered sealing head, the top of the tapered sealing sleeve is shaped to be adapted to the shape of the corresponding avoiding hole and is sealingly connected to the avoiding hole by welding, the bottom of the tapered sealing sleeve is integrally welded to the large diameter end of the tapered sealing head, the small diameter end of the tapered sealing head is provided with a through hole with a hole diameter adapted to the outer diameter of the support column, and the small diameter end of the tapered sealing head is welded to the support column.

[0019] Specifically, the tapered sealing head on the tapered sealing sleeve increases the flexibility of the connection between the outer sleeve and the support column, thereby avoiding damage to the connection between the support column caused by excessive temperature difference stress between the inner tank and the outer tank.

[0020] In one embodiment, the material of the support heat insulation material is one or more of perlite, glass fiber, asbestos, rock wool, silicate, aerogel felt or vacuum panel.

[0021] In one embodiment, an auxiliary support member is arranged between two adjacent support columns, and the two ends of the auxiliary support member are connected to the two adjacent support columns respectively.

[0022] In one embodiment, the auxiliary support member is an X-shaped pull rod assembly.

[0023] The beneficial effects of the present application are as follows:

[0024] 1. The support column is connected to the outer tank body through the outer sleeve member, thereby avoiding large support stress caused by the direct connection of the outer tank body and the support column. The outer sleeve member and the support column are filled with heat insulation material, thereby avoiding damage to the connection between the outer tank body and the outer sleeve member caused by excessive temperature difference stress.

[0025] 2. The inner side of the connection between the support column and the inner tank body is provided with a support column support plate, which avoids damage to the connection between the inner tank body and the support column caused by excessive temperature difference stress. The inner side of the connection between the outer sleeve member and the outer tank body is provided with a sleeve support plate, which avoids damage to the connection between the outer tank body and the outer sleeve member caused by excessive temperature difference stress.

[0026] 3. The flexibility of the connection between the outer sleeve member and the support column is increased by the conical head on the conical sealing sleeve, thereby avoiding damage to the connection between the support column caused by excessive temperature difference stress between the inner and outer tank bodies. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0028] Figure 1 is a structural schematic diagram of the present application;

[0029] Figure 2 is Figure 1 A local enlarged view of the place A;

[0030] Fig. 1 is a support column support plate, Fig. 2 is a sleeve support plate, Fig. 3 is a conical head, Fig. 4 is an auxiliary support member, Fig. 5 is a support column, Fig. 6 is a conical sealing sleeve, Fig. 7 is a support column bottom plate, Fig. 8 is an inner tank body, and Fig. 9 is an outer tank body. DETAILED DESCRIPTION

[0031] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Example 1

[0036] like Figures 1 to 2 As shown, this embodiment provides a support structure for a double-layer cryogenic spherical tank. The double-layer cryogenic spherical tank also includes an outer tank body 9 and an inner tank body 8 fitted inside the outer tank body 9. The support structure includes multiple structurally identical support members evenly distributed around the bottom of the outer tank body 9.

[0037] Each support component includes a support base plate 7, a support column 5, and an outer sleeve fitting; the support base plate 7 is fixed to the bottom of the vertical storage tank, the bottom of the support column 5 is fixed to the support base plate 7, and the outer tank 9 is provided with multiple clearance holes with a diameter larger than that of the support column 5. The top of the support column 5 passes through the corresponding clearance hole on the outer tank 9 and is fixed to the outer wall of the inner tank 8.

[0038] The outer sleeve is sleeved on the support column 5 below the outer tank 9, and the top of the outer sleeve is sealingly welded at the corresponding avoiding hole of the outer tank 9; and the bottom of the outer sleeve is sealingly welded on the support column 5.

[0039] Specifically, the support column 5 is connected with the outer tank 9 through the outer sleeve, thereby avoiding large support stress caused by the direct connection between the outer tank 9 and the support column 5.

[0040] Embodiment 2

[0041] As shown in the drawings, the embodiment provides a support structure for a double-layer low-temperature spherical tank, which also includes an outer tank 9 and an inner tank 8 sleeved inside the outer tank 9, and the support structure includes a plurality of support members which are circumferentially and uniformly distributed at the bottom of the outer tank 9 and are identical in structure. Figures 1 to 2 Each support member includes a support column bottom plate 7, a support column 5, and an outer sleeve; the support column bottom plate 7 is fixed at the inner bottom of the vertical storage tank, the bottom of the support column 5 is fixed on the support column bottom plate 7, the outer tank 9 is provided with a plurality of avoiding holes with a diameter larger than that of the support column 5, and the top of the support column 5 passes through the corresponding avoiding hole of the outer tank 9 and is fixed on the outer wall of the inner tank 8.

[0042] The outer sleeve is sleeved on the support column 5 below the outer tank 9, and the top of the outer sleeve is sealingly welded at the corresponding avoiding hole of the outer tank 9; and the bottom of the outer sleeve is sealingly welded on the support column 5.

[0043] There is a support gap between the outer sleeve and the support column 5, and the support gap is filled with a support heat-insulating material.

[0044] Specifically, the outer sleeve and the support column 5 are filled with the heat-insulating material, thereby avoiding damage to the connection between the outer tank 9 and the outer sleeve due to excessive temperature difference stress.

[0045] Embodiment 3

[0046] The embodiment is further optimized on the basis of Embodiment 2, specifically:

[0047] The outer tank 9 and the inner tank 8 form a vacuum cavity therebetween, and a support column support plate 1 is arranged in the vacuum cavity and connected between the outer wall of the inner tank 8 and the support column 5.

[0048] Specifically, the support column support plate 1 is arranged inside the connection between the support column 5 and the inner tank 8, and the support column support plate 1 avoids damage to the connection between the inner tank 8 and the support column 5 due to excessive temperature difference stress.

[0049] The embodiment also includes a sleeve support plate 2 connected between the outer wall of the outer tank 9 and the outer sleeve.

[0050]

[0051] ​Specifically, a sleeve support plate 2 is arranged inside the connection between the outer sleeve and the outer tank 9, so as to avoid damage to the connection between the outer tank 9 and the outer sleeve due to excessive thermal stress.

[0052] Embodiment 4

[0053] This embodiment is further optimized on the basis of Embodiment 3, specifically:

[0054] The outer sleeve includes an upper conical sealing sleeve 6 and a lower conical head 3, which are integrally formed.

[0055] The diameter of the conical sealing sleeve 6 is the same as the large diameter of the conical head 3. The top of the conical sealing sleeve 6 is shaped to adapt to the corresponding avoidance hole and is sealed and connected to the hole by welding. The bottom of the conical sealing sleeve 6 is welded to the large diameter end of the conical head 3. The small diameter end of the conical head 3 is provided with a through hole with a diameter matching the outer diameter of the support column 5. The small diameter end of the conical head 3 is welded to the support column 5.

[0056] Specifically, the flexibility of the connection between the outer sleeve and the support column 5 is increased by the conical head 3 on the conical sealing sleeve 6, so as to avoid damage to the support column connection due to excessive thermal stress between the inner and outer tanks 9.

[0057] Embodiment 5

[0058] This embodiment is further optimized on the basis of Embodiment 3, specifically:

[0059] The material of the support heat insulation material is one or more of perlite, glass fiber, asbestos, rock wool, silicate, aerogel felt or vacuum panel.

[0060] An auxiliary support member 4 is arranged between two adjacent support columns 5, and the two ends of the auxiliary support member 4 are connected to the two adjacent support columns 5, respectively.

[0061] The auxiliary support member 4 is an X-shaped pull rod assembly.

Claims

1. A support structure for a double-walled cryogenic spherical tank further comprising an outer tank body (9) and an inner tank body (8) fitted inside the outer tank body (9), characterized by, The support structure comprises a plurality of support members of the same structure distributed circumferentially on the bottom of the outer tank body (9); Each support member comprises a support column bottom plate (7), a support column (5), and a sleeve member; the bottom of the support column (5) is fixed on the support column bottom plate (7); the outer tank body (9) is provided with a plurality of avoiding holes with a diameter larger than that of the support column (5); the top of the support column (5) penetrates through the corresponding avoiding hole on the outer tank body (9) and is fixed on the outer wall of the inner tank body (8); The sleeve member is sleeved on the support column (5) below the outer tank body (9); the top of the sleeve member is sealingly welded at the corresponding avoiding hole of the outer tank body (9); and the bottom of the sleeve member is sealingly welded on the support column (5).

2. The support structure for a double-walled cryogenic spherical tank according to claim 1, wherein A support gap exists between the sleeve member and the support column (5), and the support gap is filled with a support heat insulation material.

3. The support structure for a double-walled cryogenic spherical tank according to claim 1, wherein A support column supporting plate (1) is arranged in the vacuum cavity formed between the outer tank body (9) and the inner tank body (8); the support column supporting plate (1) is connected between the outer wall of the inner tank body (8) and the support column (5).

4. The support structure for a double-walled cryogenic spherical tank according to claim 1, wherein A sleeve supporting plate (2) is further arranged; the sleeve supporting plate (2) is connected between the outer wall of the outer tank body (9) and the sleeve member.

5. The support structure for a double-walled cryogenic spherical tank according to claim 1, wherein The sleeve member comprises a tapered sealing sleeve (6) at the upper portion and a tapered sealing head (3) at the lower portion; the tapered sealing sleeve (6) and the tapered sealing head (3) are integrally formed.

6. The support structure for a double-walled cryogenic spherical tank according to claim 5, wherein The diameter of the tapered sealing sleeve (6) is the same as the large diameter of the tapered sealing head (3); the top of the tapered sealing sleeve (6) is shaped to adapt to the shape of the corresponding avoiding hole and is sealingly connected thereto by welding; the bottom of the tapered sealing sleeve (6) is integrally welded with the large diameter end of the tapered sealing head (3); the small diameter end of the tapered sealing head (3) is provided with a through hole with a hole diameter adapted to the outer diameter of the support column (5); and the small diameter end of the tapered sealing head (3) is welded with the support column (5).

7. The support structure for a double-walled cryogenic spherical tank according to claim 2, wherein The support heat insulation material is made of one or more of perlite, glass fiber, asbestos, rock wool, silicate, aerogel felt, or vacuum board.

8. The support structure for a double-walled cryogenic spherical tank according to claim 1, wherein An auxiliary support member (4) is arranged between two adjacent support columns (5); the two ends of the auxiliary support member (4) are respectively connected to the two adjacent support columns (5).

9. The support structure for a double-walled cryogenic spherical tank according to claim 8, wherein The auxiliary support member (4) is an X-shaped pull rod assembly.

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