Solid hydrogen storage tank and integrated hydrogen storage device

Abstract

The solid hydrogen storage tank comprises a tank body, a plurality of hydrogen storage alloy blocks which are arranged at intervals are arranged in the tank body in the axial direction, a heat exchange straight pipe penetrating through the hydrogen storage alloy blocks is arranged in the tank body, a heat exchange fluid medium input port and a heat exchange fluid medium output port are formed in the two ends of the heat exchange straight pipe respectively, and the heat exchange fluid medium input port and the heat exchange fluid medium output port are communicated with the hydrogen storage alloy blocks. The heat exchange fluid medium is configured to enter the heat exchange straight pipe through the heat exchange fluid medium input port, exchange heat with the hydrogen storage alloy blocks in the tank body and then be output through the heat exchange fluid medium output port, and the tank body is provided with a gas guide channel communicated with an inner cavity of the tank body. Compared with the traditional hydrogen storage alloy powder, the hydrogen storage alloy block disclosed by the utility model has the advantages that the heat conductivity of the hydrogen storage material is increased, so that the hydrogen storage material is tightly attached to the heat exchange straight pipe, and the disadvantages that the powder hydrogen storage material is low in heat conductivity and easy to finely pulverize are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage devices, and in particular to a solid-state hydrogen storage tank and an integrated hydrogen storage device. Background Art

[0002] Hydrogen energy is a clean, efficient and renewable secondary energy source. However, the storage and transportation of hydrogen has always been a bottleneck restricting the large-scale application of hydrogen energy. There is still a lot of room for exploration in the safety and economy of hydrogen storage. The current hydrogen storage methods mainly include gaseous hydrogen storage, liquid hydrogen storage and solid hydrogen storage. Traditional gaseous hydrogen storage and liquid hydrogen storage methods have the risk of explosion due to excessive pressure or require extremely harsh storage conditions, resulting in limited application scope and high cost. Solid-state hydrogen storage has the advantages of good safety, high volume hydrogen storage density and high hydrogen release purity. It has broad market prospects in specific application occasions and brings new opportunities for the promotion and application of hydrogen energy. During the solid-state hydrogen storage process, thermal effects of hydrogen absorption and desorption will occur, which will affect the platform pressure of the hydrogen storage alloy and make it difficult for the hydrogen charging and desorption process to be fully sustained. Existing heat transfer enhancement measures are mainly divided into fin heat transfer and heat transfer tube heat transfer. For example, Chinese patent CN114883594A discloses a fuel cell forklift power system with a finned solid hydrogen storage tank as a hydrogen source. The tank body is provided with a plurality of heat exchange tubes, and the heat exchange tubes are provided with heat dissipation fins. Although the heat transfer area can be increased, the material can only be filled in powder form, and the filling of molding materials is not convenient. The air guide tube is provided with a plurality of holes, and the filter screen is located at the upper end of the air guide tube, which is easy to cause the hole to be blocked, thereby reducing the mass transfer efficiency. Another example is Chinese patent CN117267601A discloses a solid hydrogen storage tank with an internal heat exchange structure and a preparation method thereof. The heat exchange component of the solid hydrogen storage tank is detachable, and the heat exchange tube group penetrates into the bottle through the bottle mouth and contacts with the solid hydrogen storage material. Although it is convenient for maintenance and replacement, the heat exchange tube group structure is relatively simple, the heat exchange effect is not obvious, and the alloy expansion stress will cause extrusion and deformation of the heat transfer fins. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a solid-state hydrogen storage tank, which mainly solves the technical problem that the existing hydrogen storage device has poor heat exchange effect and affects the hydrogen charging and discharging rate.

[0004] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0005] A solid-state hydrogen storage tank comprises a tank body, wherein a plurality of hydrogen storage alloy blocks are arranged at intervals in the axial direction of the tank body, and a heat exchange straight pipe passing through each hydrogen storage alloy block is provided in the tank body, and a heat exchange fluid medium input port and a heat exchange fluid medium output port are respectively formed at two ends of the heat exchange straight pipe, and the heat exchange fluid medium is configured to enter the heat exchange straight pipe through the heat exchange fluid medium input port and be output from the heat exchange fluid medium output port after heat exchange with each hydrogen storage alloy block in the tank body, and an air guide channel connected to the internal cavity of the tank body is provided on the tank body.

[0006] Furthermore, each hydrogen storage alloy block is provided with an axial through hole matched with the outer diameter of the heat exchange straight tube, and each hydrogen storage alloy block is tightly sleeved with the heat exchange straight tube through its own axial through hole.

[0007] Furthermore, a plurality of straight heat exchange tubes are provided in the tank body and pass through each hydrogen storage alloy block in sequence.

[0008] Furthermore, a heat exchange barrier is provided between two adjacent hydrogen storage alloy blocks inside the tank body, and the two sides of each heat exchange barrier are configured to fit tightly with the corresponding sides of the two adjacent hydrogen storage alloy blocks, and each heat exchange barrier is provided with an axial through hole that matches the outer diameter of the heat exchange straight tube, and each heat exchange barrier is tightly fitted together with the heat exchange straight tube through its own axial through hole.

[0009] Furthermore, a heat exchange tube is provided in the tank body, and each hydrogen storage alloy block and heat exchange insulation layer are stacked and embedded in the heat exchange tube in sequence, and the outer peripheral wall of each hydrogen storage alloy block and heat exchange insulation layer fits with the inner peripheral wall of the heat exchange tube.

[0010] Furthermore, the tank body includes a hollow tank body and a first tank cover and a second tank cover respectively sealed and connected to the two ends of the tank body, and a first confluence chamber and a second confluence chamber are respectively formed inside the first tank cover and the second tank cover, and the two ends of the heat exchange straight tube are configured to be connected to the first confluence chamber and the second confluence chamber respectively, and a first confluence interface connected to the first confluence chamber and a second confluence interface connected to the second confluence chamber are respectively formed on the first tank cover and the second tank cover.

[0011] Furthermore, the air guide channel is arranged on the first tank cover, the air guide channel and the first confluence cavity are independent of each other and are not interconnected, and a filter element corresponding to the inner side of the first tank cover is arranged inside the tank body, and the filtering accuracy of the filter element is 0.5-1um and the thickness is 0.5-5mm.

[0012] Furthermore, the first tank cover and the second tank cover are detachably connected to two ends of the tank body through flange structures.

[0013] Furthermore, the first tank cover is provided with a safety pressure relief channel connected to the internal cavity of the tank body. The safety pressure relief channel and the first confluence cavity are independent of each other and are not interconnected. A pressure relief valve for adjusting the release pressure of the tank body is installed on the safety pressure relief channel.

[0014] Based on the same inventive concept, the utility model also provides an integrated hydrogen storage device, including a frame, on which any of the above-mentioned solid-state hydrogen storage tanks is installed, and the frame is provided with a plurality of axial flow explosion-proof fans arranged corresponding to the solid-state hydrogen storage tanks.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] In the solid hydrogen storage tank and integrated hydrogen storage device described in the utility model, the hydrogen storage alloy block increases the thermal conductivity of the hydrogen storage material compared to the traditional hydrogen storage alloy powder, so that the hydrogen storage material and the heat exchange straight pipe fit closely, overcoming the disadvantages of low thermal conductivity of the powder and easy pulverization. The heat exchange straight pipe structure can ensure that the risk of fatigue failure of the bent pipe is avoided under the premise of full contact between the hydrogen storage alloy material and the heat exchange pipeline, and the straight pipe has obvious advantages in cost and manufacturing efficiency compared with other heat exchange structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a solid hydrogen storage tank according to an embodiment of the utility model.

[0018] Figure 2 It is a cross-sectional view of the structure of a solid-state hydrogen storage tank according to an embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the structural decomposition of an embodiment of the utility model.

[0020] Figure 4 It is a schematic diagram of the assembly structure of the hydrogen storage alloy block, the heat exchange insulation layer and the heat exchange straight tube in the embodiment of the utility model.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the integrated hydrogen storage device of an embodiment of the utility model.

[0022] Description of labels:

[0023] 1. Tank body, 2. Hydrogen storage alloy block, 3. Heat exchange straight pipe, 4. Heat exchange insulation, 5. Heat exchange cylinder, 6. Filter element, 7. Frame, 8. Axial flow explosion-proof fan, 11. Air guide channel, 12. Tank body, 13. First tank cover, 14. Second tank cover, 15. Safety pressure relief channel, 131. First confluence chamber, 132. First confluence interface, 141. Second confluence chamber, 142. Second confluence interface. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Please refer to the attached Figure 1 To Attachment Figure 5 An embodiment of the utility model provides a solid-state hydrogen storage tank, including a tank body 1, in which a plurality of hydrogen storage alloy blocks 2 are arranged at intervals along the axial direction, and a heat exchange straight pipe 3 passing through each hydrogen storage alloy block 2 is provided in the tank body 1, and a heat exchange fluid medium input port and a heat exchange fluid medium output port are respectively formed at both ends of the heat exchange straight pipe 3, and the heat exchange fluid medium is configured to enter the heat exchange straight pipe 3 through the heat exchange fluid medium input port and exchange heat with each hydrogen storage alloy block 2 in the tank body 1 before being output from the heat exchange fluid medium output port, and an air guide channel 11 connected to the internal cavity of the tank body 1 is provided on the tank body 1.

[0027] Please refer to the attached Figure 1 To Attachment Figure 4 In one preferred embodiment, each hydrogen storage alloy block 2 is provided with an axial through hole matching the outer diameter of the heat exchange straight tube 3, and each hydrogen storage alloy block 2 is tightly sleeved with the heat exchange straight tube 3 through its own axial through hole. Preferably, a lanthanum nickel-based or titanium zirconium-based alloy is used as a hydrogen storage material, which can store or release hydrogen at low temperature and low pressure. Preferably, the hydrogen storage alloy can be an AB5 type, AB2, AB, or BCC type solid hydrogen storage alloy structure.

[0028] Please refer to the attached Figure 1 To Attachment Figure 4In one preferred embodiment, a plurality of heat exchange straight tubes 3 passing through each hydrogen storage alloy block 2 in sequence are provided in the tank body 1. In this embodiment, preferably, the heat exchange straight tube 3 is made of 316 stainless steel, the diameter of the heat exchange straight tube 3 is 20-30 mm, the wall thickness is 2-3 mm, and the material is copper, aluminum alloy or stainless steel. The straight tube has good compressive resistance in the radial direction and can withstand the stress caused by volume expansion and temperature change. In this embodiment, preferably, six heat exchange straight tubes 3 are provided in the tank body 1. Specifically, one of the heat exchange straight tubes 3 is arranged at the axis position of the tank body 1, and the remaining five heat exchange straight tubes 3 are evenly distributed around the heat exchange straight tube 3 at the axis. However, those skilled in the art should understand that in other embodiments, the number and arrangement structure of the heat exchange straight tubes 3 can also be other settings, and are not limited to the specific implementation method disclosed in this embodiment, as long as the heat exchange effect between the heat exchange straight tubes 3 and each hydrogen storage alloy block 2 can be guaranteed. In addition, in this embodiment, by arranging a plurality of heat exchange straight tubes 3 inside the tank body 1, it is possible to ensure that the risk of fatigue failure of the bent tube is avoided under the premise of making the hydrogen storage alloy material fully contact with the heat exchange pipeline. At the same time, straight tubes have obvious advantages over other heat exchange structures in terms of cost and manufacturing efficiency. In this embodiment, the hydrogen storage alloy block 2 increases the thermal conductivity of the hydrogen storage material compared to the traditional hydrogen storage alloy powder, so that the hydrogen storage material fits tightly with the heat exchange straight tube, overcoming the disadvantages of low thermal conductivity of the powder and easy pulverization.

[0029] Please refer to the attached Figure 1 To Attachment Figure 4 In one preferred embodiment, a heat exchange barrier 4 is provided between two adjacent hydrogen storage alloy blocks 2 inside the tank body 1, and the two sides of each heat exchange barrier 4 are configured to fit tightly with the corresponding sides of the two adjacent hydrogen storage alloy blocks 2, and each heat exchange barrier 4 is provided with an axial through-hole that matches the outer diameter of the heat exchange straight tube 3, and each heat exchange barrier 4 is tightly sleeved with the heat exchange straight tube 3 through its own axial through-hole. In this embodiment, the sandwich structure of each hydrogen storage alloy block 2 and the heat exchange barrier 4 is stacked in sequence, and the heat exchange effect of each heat exchange barrier 4 enables the side positions of each two hydrogen storage alloy blocks 2 to better exchange heat with the heat exchange straight tube 3. Preferably, the heat exchange barrier 4 is made of a heat-conducting material with a high thermal conductivity, for example, foamed copper, foamed aluminum and other foamed metal materials.

[0030] Please refer to the attached Figure 1 To Attachment Figure 4 In one preferred embodiment, a heat exchange tube 5 is provided in the tank body 1, and each hydrogen storage alloy block 2 and the heat exchange insulation layer 4 are stacked and embedded in the heat exchange tube 5 in sequence, and the outer peripheral wall of each hydrogen storage alloy block 2 and the heat exchange insulation layer 4 is fitted with the inner peripheral wall of the heat exchange tube 5 (minimum clearance fit).

[0031] Please refer to the attached Figure 1 To Attachment Figure 4In one preferred embodiment, the tank body 1 includes a hollow tank body 12 and a first tank cover 13 and a second tank cover 14 respectively sealed and connected to the two ends of the tank body 12, and the first tank cover 13 and the second tank cover 14 are respectively formed with a first confluence chamber 131 and a second confluence chamber 141, and the two ends of the heat exchange straight tube 3 are configured to be connected to the first confluence chamber 131 and the second confluence chamber 141, respectively, and the first tank cover 13 and the second tank cover 14 are respectively formed with a first confluence interface 132 connected to the first confluence chamber 131 and a second confluence interface 142 connected to the second confluence chamber 141. In this embodiment, preferably, the tank body 1 is made of stainless steel as a whole, such as 304 stainless steel or 316 stainless steel. By using stainless steel to make the tank body, the erosion of the inner wall of the tank body by the pulverization and expansion of the hydrogen storage alloy can be reduced, while ensuring the compressive strength of the tank body and the economy of the product. The two ends of the heat exchange straight pipe 3 are respectively sealed and connected to the first tank cover 13 and the second tank cover 14 and communicate with the corresponding first confluence cavity 131 and the second confluence cavity 141. The first confluence cavity 131 and the second confluence cavity 141 are used to cache and divert the heat exchange fluid medium.

[0032] Please refer to the attached Figure 1 To Attachment Figure 4 In one preferred embodiment, the air guide channel 11 is arranged on the first tank cover 13, the air guide channel 11 and the first confluence chamber 131 are independent of each other and do not communicate with each other, and a filter 6 corresponding to the inner side of the first tank cover 13 is arranged inside the tank body 1, and the filtering accuracy of the filter 6 is 0.5-1um and the thickness is 0.5-5mm. In this embodiment, by arranging the filter 6 (preferably a filter mesh structure) corresponding to the first tank cover 13 provided with the air guide channel 11 inside the tank body 1, the pulverized alloy can be filtered to ensure that the alloy powder does not overflow when releasing hydrogen, and at the same time, it plays a role in buffering and uniformly absorbing hydrogen for the gas filled.

[0033] Please refer to the attached Figure 1 To Attachment Figure 4 In one preferred embodiment, the first can cover 13 and the second can cover 14 are detachably connected to the two ends of the can body 12 through flange structures. In this embodiment, the can cover and the can body are connected by the flange structure, which facilitates the removal of the can cover when filling and improves the operation efficiency.

[0034] Please refer to the attached Figure 1 To Attachment Figure 4 In one preferred embodiment, a safety pressure relief channel 15 communicating with the internal cavity of the tank body 1 is provided on the first tank cover 13. The safety pressure relief channel 15 and the first confluence chamber 131 are independent of each other and are not intercommunication. A pressure relief valve for adjusting the pressure relief of the tank body 1 is installed on the safety pressure relief channel 15. The safety pressure of the tank body 1 is ensured by the pressure relief valve. When the pressure inside the tank body 1 exceeds the preset safety pressure value, the pressure relief valve will be triggered to open so that the pressure inside the tank body 1 can be released.

[0035] Please refer to the attached Figure 1 To Attachment Figure 5 An embodiment of the utility model also provides an integrated hydrogen storage device, including a frame 7, on which a number of solid-state hydrogen storage tanks of any of the above embodiments are fixedly mounted, and the frame 7 is provided with a number of axial-flow explosion-proof fans 8 corresponding to the solid-state hydrogen storage tanks. In this embodiment, the axial-flow explosion-proof fan 8 can be used to discharge leaked gas in time and enhance the heat dissipation performance of the tank surface. In this embodiment, preferably, the frame 7 is a stainless steel frame structure. The stainless steel frame 7 adopts a strip steel beam base to ensure the bearing capacity while being as lightweight as possible, which is conducive to the heat dissipation of the gas fluid with strong exhaust. In this embodiment, during the hydrogen absorption process, the axial-flow explosion-proof fan 8 on the frame 7 can realize linkage auxiliary heat dissipation, timely reduce the tank temperature, and help keep the hydrogen storage alloy blocks 2 inside the tank 1 in a relatively low temperature range, thereby improving the hydrogen storage efficiency. In addition, the first confluence interface 132 and the second confluence interface 142 of each solid-state hydrogen storage tank on the frame 7 are respectively converged through corresponding confluence pipes. In this embodiment, preferably, the first confluence interface 132 is the heat exchange fluid medium inlet of the tank body 1, and the second confluence interface 142 is the heat exchange fluid medium outlet of the tank body 1. The gas guide channels 11 of each solid-state hydrogen storage tank are converged through the gas guide confluence pipe, and the confluence branch pipelines corresponding to each gas guide channel 11 are provided with a valve for controlling the on-off of the gas guide channel 11 and a pressure sensor for monitoring the internal pressure of the corresponding tank body 1.

[0036] The working principle of the integrated hydrogen storage device of this embodiment is as follows: Hydrogenation process: hydrogen is input into the interior of the tank body through the air guide channel, and after being filtered by the filter element, the hydrogen is absorbed by the hydrogen storage alloy block inside the tank body, and the hydrogen in the tank body reacts with the hydrogen storage alloy block to generate metal hydride, completing the hydrogen charging process. During the hydrogen charging process, a large amount of heat is released due to the reaction between hydrogen and the alloy, resulting in an increase in the alloy platform pressure. At this time, the heat exchange fluid medium for cooling is input from each first confluence interface to the heat exchange straight tube in the corresponding tank body through a confluence pipe. The heat released by the hydrogen storage alloy block is heat-conducted by contact with the metal wall of the heat exchange straight tube. The coolant in the tube flows through the heat exchange straight tube to perform heat conduction, and the heat of the hydrogen storage alloy block is efficiently taken away by the cooperation of the heat exchange insulation layer, the heat exchange cylinder and the heat exchange straight tube, thereby achieving a cooling effect. During the dehydrogenation process, the hydrogen storage alloy block begins to dehydrogenate under the action of the internal and external pressure difference. The reaction process absorbs a large amount of heat, the temperature in the hydrogen storage tank drops, and the dehydrogenation rate decreases. At this time, the heat exchange fluid medium for heating is input from each first confluence interface into the heat exchange straight tube in the corresponding tank body through the confluence pipe. The hydrogen storage alloy block is internally heated through the cooperation of the heat exchange insulation layer, the heat exchange cylinder and the heat exchange straight tube to increase the dehydrogenation rate.

[0037] As described above, the embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model. Therefore, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the protection scope of the utility model.

Claims

1. A solid-state hydrogen storage tank, characterized in that: The invention comprises a tank body (1), wherein a plurality of hydrogen storage alloy blocks (2) are arranged at intervals in the axial direction inside the tank body (1), and a heat exchange straight pipe (3) passing through each hydrogen storage alloy block (2) is provided in the tank body (1), and a heat exchange fluid medium input port and a heat exchange fluid medium output port are respectively formed at two ends of the heat exchange straight pipe (3), and the heat exchange fluid medium is configured to enter the heat exchange straight pipe (3) through the heat exchange fluid medium input port and exchange heat with each hydrogen storage alloy block (2) in the tank body (1) before being output through the heat exchange fluid medium output port, and an air guide channel (11) communicating with the internal cavity of the tank body (1) is provided on the tank body (1).

2. The solid-state hydrogen storage tank according to claim 1, characterized in that: Each hydrogen storage alloy block (2) is provided with an axial through hole matching the outer diameter of the heat exchange straight tube (3), and each hydrogen storage alloy block (2) is tightly sleeved and matched with the heat exchange straight tube (3) through its own axial through hole.

3. The solid-state hydrogen storage tank according to claim 1, characterized in that: A plurality of straight heat exchange tubes (3) are arranged in the tank body (1) and pass through the hydrogen storage alloy blocks (2) in sequence.

4. The solid-state hydrogen storage tank according to claim 1, characterized in that: A heat exchange insulation layer (4) is provided between two adjacent hydrogen storage alloy blocks (2) inside the tank body (1), and the two sides of each heat exchange insulation layer (4) are configured to be tightly fitted with the corresponding side surfaces of the two adjacent hydrogen storage alloy blocks (2), and each heat exchange insulation layer (4) is provided with an axial through hole that matches the outer diameter of the heat exchange straight tube (3), and each heat exchange insulation layer (4) is tightly sleeved and matched with the heat exchange straight tube (3) through its own axial through hole.

5. The solid-state hydrogen storage tank according to claim 4, characterized in that: A heat exchange tube (5) is arranged in the tank body (1), and each hydrogen storage alloy block (2) and heat exchange insulation layer (4) are stacked and embedded in the heat exchange tube (5) in sequence, and the outer peripheral wall of each hydrogen storage alloy block (2) and heat exchange insulation layer (4) is fitted with the inner peripheral wall of the heat exchange tube (5).

6. The solid-state hydrogen storage tank according to any one of claims 1 to 5, characterized in that: The tank body (1) comprises a hollow tank body (12) and a first tank cover (13) and a second tank cover (14) respectively sealed and connected to the two ends of the tank body (12); a first confluence cavity (131) and a second confluence cavity (141) are respectively formed inside the first tank cover (13) and the second tank cover (14); the two ends of the heat exchange straight pipe (3) are configured to be respectively connected to the first confluence cavity (131) and the second confluence cavity (141); and a first confluence interface (132) connected to the first confluence cavity (131) and a second confluence interface (142) connected to the second confluence cavity (141) are respectively formed on the first tank cover (13) and the second tank cover (14).

7. The solid-state hydrogen storage tank according to claim 6, characterized in that: The air guide channel (11) is arranged on the first tank cover (13), the air guide channel (11) and the first confluence chamber (131) are independent of each other and do not communicate with each other, and a filter element (6) corresponding to the inner side of the first tank cover (13) is arranged inside the tank body (1), the filter element (6) has a filtering accuracy of 0.5 to 1 μm and a thickness of 0.5 to 5 mm.

8. The solid-state hydrogen storage tank according to claim 6, characterized in that: The first can cover (13) and the second can cover (14) are detachably connected to the two ends of the can body (12) via flange structures.

9. The solid-state hydrogen storage tank according to claim 6, characterized in that: The first tank cover (13) is provided with a safety pressure relief passage (15) communicating with the internal cavity of the tank body (1); the safety pressure relief passage (15) and the first confluence chamber (131) are independent of each other and do not communicate with each other; and a pressure relief valve for adjusting the pressure relief of the tank body (1) is installed on the safety pressure relief passage (15).

10. An integrated hydrogen storage device, characterized in that: It comprises a frame (7), on which a plurality of solid-state hydrogen storage tanks according to any one of claims 1 to 9 are fixedly mounted, and the frame (7) is provided with a plurality of axial flow explosion-proof fans (8) arranged corresponding to the solid-state hydrogen storage tanks.

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