Explosion-proof storage tank for hydrogen storage

By setting up a multi-layer protective structure and high-sealing materials on the hydrogen storage tank, the hydrogen leakage problem of hydrogen storage devices in the event of collision, fire or flood is solved, and higher safety and sealing are achieved.

CN223242517UActive Publication Date: 2025-08-19GANSU ZHIYI HYDROGEN ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421565404.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-03
Publication Date
2025-08-19
Estimated Expiration
2034-07-03

AI Technical Summary

Technical Problem

Existing hydrogen storage devices can easily cause hydrogen leakage in the event of collision, fire or flood, and fail to effectively prevent combustion or explosion.

Method used

It adopts a multi-layer protective structure, including a fire-proof layer, a waterproof layer, a collision-proof layer, an insulation layer and an explosion-proof material, combined with a high-density sealing layer and a polyurethane rubber layer, enhances the fire-proof, waterproof, collision-proof and insulation properties of the tank, and improves the sealing properties through explosion-proof materials made of special aluminum alloy materials.

Benefits of technology

It effectively prevents hydrogen from leaking out in collisions, fires or floods, enhances the explosion-proof performance of the tank and improves the safety and sealing of hydrogen storage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223242517U_ABST
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Abstract

The utility model relates to the technical field of hydrogen storage, and discloses an anti-explosion storage tank for hydrogen storage, which comprises a tank body structure, the inner side of the tank body structure is fixedly connected with a gas transmission structure, the tank body structure comprises a tank body main body and a fireproof layer, and the outer side of the tank body main body is fixedly connected with the fireproof layer. The tank body structure is provided with the fireproof layer, the fireproof layer is used for protecting the tank body main body and enhancing the fireproof performance, the waterproof layer is used for protecting the tank body main body and enhancing the waterproof performance, the anti-collision layer is arranged, the anti-collision layer is used for protecting the tank body main body and enhancing the anti-collision performance, and the insulating layer is arranged and used for protecting the tank body main body. And a barrier explosion-proof material is arranged, and the barrier explosion-proof material is an explosion suppression material manufactured by adopting a special aluminum alloy series material and a special processing technology.
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Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage, in particular to an explosion-proof storage tank for hydrogen storage. Background Art

[0002] Liquefied hydrogen is obtained by cooling hydrogen to -253°C. Compared with high-pressure gaseous hydrogen, it has a higher energy density per unit mass. With the development of clean energy, the demand for liquefied hydrogen is also increasing. It can be used directly as an energy source or converted into high-pressure gaseous hydrogen for reuse. However, during the storage process of liquefied hydrogen, hydrogen easily evaporates and overflows from the storage tank. In addition, hydrogen is a flammable gas, and the overflowed hydrogen will burn or explode if it encounters fire, making the storage process dangerous.

[0003] Application number 202123310959.X discloses an explosion-proof storage tank for storing liquefied hydrogen, comprising a tank body mechanism, an inner tank lifting mechanism, and a filling gas regulating assembly. The tank body mechanism comprises an outer tank body, an inner tank body, and a sealing cover. The inner tank lifting mechanism comprises an outer cylinder body, an inner cylinder body, an outer piston, an inner piston, a hydraulic lifting column, a pressure plate, a pressure rod, and a connecting pipe. The filling gas regulating assembly comprises a nitrogen tank, a vacuum pump, an air intake pump, a return air pump, a hydrogen removal assembly, a cooling assembly, a water removal assembly, a first pipe, a second pipe, and a third pipe. When the inner tank body stores hydrogen, the utility model uses an outer tank body and a filling gas regulating assembly in conjunction. Without affecting normal use, the overflowed hydrogen is processed, the possibility of hydrogen contacting the outside world is reduced as much as possible, the possibility of the outside world contacting the hydrogen is reduced, the explosion-proof effect is improved, and after the hydrogen is processed, the generation of other gases can be reduced as much as possible.

[0004] However, there are some shortcomings. When storing hydrogen, the device is equipped with an outer tank and a filling gas regulating component to process the overflowed hydrogen without affecting normal use, thereby reducing the possibility of hydrogen contacting the outside world as much as possible, reducing the possibility of the outside world contacting hydrogen, improving the explosion-proof effect, and after processing the hydrogen, the generation of other gases can be reduced as much as possible. However, in actual application, the device did not take into account the possibility that the tank storing hydrogen may be subject to collision, fire, flood, etc., which may also cause hydrogen leakage. Utility Model Content

[0005] The purpose of the present utility model is to provide an explosion-proof storage tank for hydrogen storage, so as to solve the problem proposed in the above background technology that when the device stores hydrogen, an outer tank body and a filling gas regulating component are used in conjunction with the device to process the overflowed hydrogen without affecting normal use, thereby reducing the possibility of hydrogen contact with the outside world as much as possible, reducing the possibility of the outside world contacting the hydrogen, improving the explosion-proof effect, and after processing the hydrogen, the generation of other gases can be reduced as much as possible. However, in actual application, the device does not take into account the possibility that the tank body storing hydrogen may be subject to collision, fire, flood, etc., which may also cause hydrogen leakage.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is an explosion-proof storage tank for hydrogen storage, comprising a tank structure, wherein the inner side of the tank structure is fixedly connected with a gas transmission structure, the tank structure comprises a tank body and a fireproof layer, and the outer side of the tank body is fixedly connected with the fireproof layer.

[0008] Furthermore, a waterproof layer is fixedly connected to the outer side of the fireproof layer.

[0009] Furthermore, an anti-collision layer is fixedly connected to the outer side of the waterproof layer.

[0010] Furthermore, an insulating layer is fixedly connected to the inner side of the tank body.

[0011] Furthermore, a barrier and explosion-proof material is fixedly connected to the inner side of the insulating layer.

[0012] Furthermore, the gas transmission structure includes a first sealing ring and an air intake pipe. The inner side of the barrier explosion-proof material is fixedly connected to the first sealing ring, and the inner side of the first sealing ring is fixedly connected to the air intake pipe.

[0013] Furthermore, a high-density sealing layer is fixedly connected to the upper side of the air inlet pipe, and an air delivery pipe is fixedly connected to the inner side of the high-density sealing layer.

[0014] Furthermore, a polyurethane rubber layer is fixedly connected to the upper side of the gas transmission pipe, a second sealing ring is fixedly connected to the outer side of the polyurethane rubber layer, and an annular sealing layer is fixedly connected to the outer side of the second sealing ring.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model is provided with a tank structure, and the tank structure is provided with a fireproof layer, which is used to protect the tank body and enhance the fire resistance; a waterproof layer, which is used to protect the tank body and enhance the waterproofness; an anti-collision layer, which is used to protect the tank body and enhance the anti-collision performance; an insulating layer, which is used to protect the tank body and enhance the insulation effect; and a barrier explosion-proof material, which is an explosion-suppressing material made of a special aluminum alloy series material and a special processing technology.

[0017] (2) The utility model is provided with a gas transmission structure. The gas transmission structure is provided with a high-density sealing layer. The high-density sealing layer and the first sealing ring are used in conjunction to improve the sealing performance of the intake pipe during the intake process. A polyurethane rubber layer is provided on the upper side of the intake pipe. The polyurethane rubber layer is a high-quality material widely used in various sealing materials. It has excellent mechanical strength and tear resistance, and has good tolerance to oil, friction, radiation and impact. A second sealing ring is provided on the outer side of the polyurethane rubber layer. The outer side of the second sealing ring has an annular sealing layer. The provision of the second sealing ring and the annular sealing layer greatly improves the sealing performance of the gas transmission structure.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection of the tank body structure of the utility model;

[0022] Figure 3 This is a cross-sectional diagram of the first sealing ring of the gas transmission structure of the utility model;

[0023] Figure 4 This is a cross-sectional diagram of the high-density sealing layer of the gas transmission structure of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] In the figure: 1. Tank structure; 2. Gas transmission structure; 101. Tank body; 102. Fireproof layer; 103. Waterproof layer; 104. Anti-collision layer; 105. Insulation layer; 106. Barrier and explosion-proof material; 201. First sealing ring; 202. Air inlet pipe; 203. High-density sealing layer; 204. Gas transmission pipe; 205. Polyurethane rubber layer; 206. Second sealing ring; 207. Annular sealing layer; DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 4 As shown, the utility model is an explosion-proof storage tank for hydrogen storage, including a tank structure 1, the inner side of the tank structure 1 is fixedly connected to a gas transmission structure 2, the tank structure 1 includes a tank body 101 and a fireproof layer 102, and the outer side of the tank body 101 is fixedly connected to the fireproof layer 102.

[0028] By adopting the above technical solution, the present solution provides a fireproof layer 102, which is used to protect the tank body 101 and enhance the fire resistance.

[0029] The outer side of the fireproof layer 102 is fixedly connected with a waterproof layer 103 .

[0030] By adopting the above technical solution, this solution provides a waterproof layer 103, which is used to protect the tank body 101 and enhance the waterproof performance.

[0031] The outer side of the waterproof layer 103 is fixedly connected with an anti-collision layer 104 .

[0032] By adopting the above technical solution, the present solution provides an anti-collision layer 104 , which is used to protect the tank body 101 and enhance the anti-collision performance.

[0033] An insulating layer 105 is fixedly connected to the inner side of the tank body 101 .

[0034] By adopting the above technical solution, the present solution provides an insulating layer 105 , which is used to protect the tank body 101 and enhance the insulation effect.

[0035] The inner side of the insulating layer 105 is fixedly connected with an isolation and explosion-proof material 106 .

[0036] By adopting the above technical solution, this solution sets up a barrier explosion-proof material 106, which is an explosion-suppressing material made of special aluminum alloy series materials and special processing technology.

[0037] The gas transmission structure 2 includes a first sealing ring 201 and an air inlet pipe 202 . The first sealing ring 201 is fixedly connected to the inner side of the barrier explosion-proof material 106 , and the air inlet pipe 202 is fixedly connected to the inner side of the first sealing ring 201 .

[0038] By adopting the above technical solution, this solution provides a first sealing ring 201 , and the first sealing ring 201 enhances the sealing performance of the air intake pipe 202 .

[0039] A high-density sealing layer 203 is fixedly connected to the upper side of the air inlet pipe 202 , and an air delivery pipe 204 is fixedly connected to the inner side of the high-density sealing layer 203 .

[0040] By adopting the above technical solution, the present solution improves the sealing performance of the intake pipe 202 during the intake process by providing a high-density sealing layer 203 , which is used in conjunction with the first sealing ring 201 .

[0041] A polyurethane rubber layer 205 is fixedly connected to the upper side of the gas transmission pipe 204 , a second sealing ring 206 is fixedly connected to the outer side of the polyurethane rubber layer 205 , and an annular sealing layer 207 is fixedly connected to the outer side of the second sealing ring 206 .

[0042] By adopting the above technical solution, this solution incorporates a polyurethane rubber layer 205, a high-quality material widely used in various sealing materials. It possesses excellent mechanical and tear strength, and is highly resistant to oil, friction, radiation, and impact. However, polyurethane rubber is not resistant to high temperatures, water, acids, and alkalis. Therefore, it excels in low-speed, heat-dissipating vacuum applications.

[0043] When in use, a tank structure 1 is first set up. The tank structure 1 is provided with a fireproof layer 102, which is used to protect the tank body 101 and enhance the fire resistance. A waterproof layer 103 is provided, which is used to protect the tank body 101 and enhance the waterproofness. An anti-collision layer 104 is provided, which is used to protect the tank body 101 and enhance the anti-collision performance. An insulating layer 105 is provided, which is used to protect the tank body 101 and enhance the insulation effect. A barrier explosion-proof material 106 is provided, which is an explosion-suppressing material made of special aluminum alloy series materials and special processing technology, and a gas transmission structure 2 is provided. The gas transmission structure 2 is provided with a high-density sealing layer 203, which is used in conjunction with the first sealing ring 201 to improve the sealing of the intake pipe 202 during the intake process, and a polyurethane rubber layer 205 is provided on the upper side of the intake pipe 202. The polyurethane rubber layer 205 is a high-quality material widely used in various sealing materials. It has excellent mechanical strength and tear resistance, and is also very resistant to oil, friction, radiation, and impact. A second sealing ring 206 is further provided on the outside of the polyurethane rubber layer 205, and an annular sealing layer 207 is provided on the outside of the second sealing ring 206. The provision of the second sealing ring 206 and the annular sealing layer 207 greatly improves the sealing performance of the gas transmission structure 2.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An explosion-proof storage tank for hydrogen storage, comprising a tank structure (1), characterized in that: The inner side of the tank structure (1) is fixedly connected to a gas transmission structure (2), and the tank structure (1) comprises a tank body (101) and a fireproof layer (102). The outer side of the tank body (101) is fixedly connected to the fireproof layer (102), the outer side of the fireproof layer (102) is fixedly connected to a waterproof layer (103), the outer side of the waterproof layer (103) is fixedly connected to an anti-collision layer (104), the inner side of the tank body (101) is fixedly connected to an insulating layer (105), and the inner side of the insulating layer (105) is fixedly connected to a barrier explosion-proof material (106).

2. The explosion-proof storage tank for hydrogen storage according to claim 1, characterized in that: The gas transmission structure (2) comprises a first sealing ring (201) and an air intake pipe (202); the first sealing ring (201) is fixedly connected to the inner side of the barrier explosion-proof material (106); and the air intake pipe (202) is fixedly connected to the inner side of the first sealing ring (201).

3. The explosion-proof storage tank for hydrogen storage according to claim 2, characterized in that: A high-density sealing layer (203) is fixedly connected to the upper side of the air inlet pipe (202), and an air delivery pipe (204) is fixedly connected to the inner side of the high-density sealing layer (203).

4. The explosion-proof storage tank for hydrogen storage according to claim 3, characterized in that: A polyurethane rubber layer (205) is fixedly connected to the upper side of the gas transmission pipe (204), a second sealing ring (206) is fixedly connected to the outer side of the polyurethane rubber layer (205), and an annular sealing layer (207) is fixedly connected to the outer side of the second sealing ring (206).

Citation Information

Patent Citations

  • Anti-explosion storage tank for liquefied hydrogen storage

    CN217635058U