Hydrogen storage bottle refrigerating device and solid hydrogen storage bottle

Abstract

The hydrogen storage bottle refrigerating device comprises an inner barrel body made of heat conduction metal, one end of the inner barrel body is open, and the inner diameter of the inner barrel body is matched with the outer diameter of a hydrogen storage bottle to be refrigerated; a semiconductor chilling plate is laid on the side wall of the inner cylinder body, a cooling fan is arranged at the bottom of the inner cylinder body, and an air outlet of the cooling fan is formed in the axial direction of the inner cylinder body, so that air blown out by the cooling fan flows through the side wall of the inner cylinder body; and the semiconductor chilling plate and the cooling fan are connected with a power supply through a control circuit. The cooling device has the advantages that the structure is simple, the solid hydrogen storage bottle can be cooled, and the hydrogen storage capacity and efficiency can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a hydrogen storage bottle refrigeration device and a solid-state hydrogen storage bottle. Background Art

[0002] The hydrogen fuel cell system directly generates electricity through the catalytic reaction between hydrogen and oxygen, and is highly efficient and environmentally friendly. The hydrogen fuel cell system mainly includes: a stack unit, an air supply unit, a hydrogen supply unit, a thermal management unit, a control unit, and a hydrogen storage unit. Hydrogen fuel cell hydrogen storage methods are divided into high-pressure hydrogen storage, liquid hydrogen storage, and solid-state hydrogen storage. Among them, solid-state hydrogen storage uses special alloys to release heat and absorb and store hydrogen. The hydrogen storage pressure can be as low as 1-5MPa. It has the characteristics of low hydrogenation pressure, high hydrogen storage density, and high safety. When storing hydrogen, solid-state hydrogen storage bottles release heat to the outside. Once the temperature of the bottle body and the surrounding environment is high, it affects the heat exchange between the solid-state hydrogen storage bottle and the outside world, which will reduce the hydrogen storage capacity and efficiency. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a hydrogen storage bottle refrigeration device and a solid-state hydrogen storage bottle with a simple structure that can cool the solid-state hydrogen storage bottle and is conducive to ensuring the hydrogen storage capacity and efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A hydrogen storage bottle refrigeration device is characterized in that it includes an inner cylinder made of heat-conducting metal, one end of the inner cylinder is open, and the inner diameter matches the outer diameter of the hydrogen storage bottle to be refrigerated; semiconductor refrigeration sheets are laid on the side walls of the inner cylinder, and a cooling fan is provided at the bottom of the inner cylinder, and the air outlet of the cooling fan is arranged along the axial direction of the inner cylinder so that the air blown out by the cooling fan flows through the side walls of the inner cylinder; the semiconductor refrigeration sheets and the cooling fan are connected to a power supply through a control circuit.

[0006] In the above structure, semiconductor cooling sheets are laid on the side walls of the inner cylinder. The inner cavity of the inner cylinder is cooled by the semiconductor cooling sheets. In response, the temperature outside the semiconductor cooling sheets increases. As the air blown by the cooling fan flows along the side walls of the inner cylinder, it removes the heat outside the semiconductor cooling sheets, allowing the semiconductor cooling sheets to continuously carry heat from the inner cavity of the inner cylinder. During use, placing the hydrogen storage bottle in the inner cylinder can cool the hydrogen storage bottle, thereby increasing hydrogen storage efficiency, making it easier to fill the hydrogen storage bottle and ensuring hydrogen storage capacity.

[0007] Furthermore, an outer cylinder is coaxially sleeved on the outer side of the inner cylinder, the semiconductor refrigeration plate is arranged in the interlayer between the inner cylinder and the outer cylinder, and the cooling fan is arranged at the bottom of the outer cylinder; the outer cylinder is made of heat-conducting metal.

[0008] Furthermore, the outer side of the outer cylinder has heat dissipation fins extending in the axial direction, and a plurality of the heat dissipation fins are evenly distributed along the circumference of the outer cylinder.

[0009] In this way, the heat dissipation area of ​​the outer cylinder can be increased by the heat dissipation fins, thereby better dissipating heat.

[0010] Furthermore, the heat dissipation fan is coaxially arranged at the bottom of the outer cylinder, and has a diameter greater than that of the outer cylinder.

[0011] Furthermore, the bottom of the outer cylinder has a coaxially arranged protective ring, the diameter of the protective ring is larger than the diameter of the outer cylinder, and the cooling fan is installed in the protective ring.

[0012] Furthermore, the side wall of the protective ring is provided with an air inlet hole which is arranged through it. The air inlet hole is located at one end of the protective ring away from the outer cylinder, and a plurality of the air inlet holes are evenly distributed along the axial direction and the axial direction.

[0013] Furthermore, the protective ring or the outer cylinder has support ribs extending in the radial direction, and the support ribs have connecting holes; the protective ring and the outer cylinder are fixedly connected by bolts fitted on the connecting holes.

[0014] Furthermore, the control circuit is arranged in the protective ring and is located in the middle of the side of the cooling fan away from the outer cylinder; an air intake channel is formed between the control circuit and the protective cover.

[0015] Furthermore, the inner cylinder and the outer cylinder are both made of aluminum alloy.

[0016] A solid-state hydrogen storage bottle is characterized by comprising the hydrogen storage bottle refrigeration device as described above and a hydrogen storage bottle arranged in the inner cylinder.

[0017] In summary, the utility model has the advantages of simple structure, being able to cool the solid-state hydrogen storage bottle, and being beneficial to ensuring the hydrogen storage capacity and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the decomposition structure. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the embodiments.

[0021] When implementing: Figure 1 and Figure 2 As shown, a solid-state hydrogen storage bottle includes a hydrogen storage bottle refrigeration device and a hydrogen storage bottle 7, wherein the hydrogen storage bottle refrigeration device includes an inner cylinder 1 made of heat-conducting metal, one end of the inner cylinder 1 is open, and the inner diameter matches the outer diameter of the hydrogen storage bottle 7, and the hydrogen storage bottle 7 is placed in the inner cylinder 1; a semiconductor refrigeration sheet 2 is laid on the side wall of the inner cylinder 1, and a cooling fan 3 is provided at the bottom of the inner cylinder 1, and the air outlet of the cooling fan 3 is arranged along the axial direction of the inner cylinder 1, so that the air blown out by the cooling fan 3 flows through the side wall of the inner cylinder 1; the semiconductor refrigeration sheet 2 and the cooling fan 3 are connected to a power supply through a control circuit.

[0022] The outer side of the inner cylinder 1 is coaxially sleeved with an outer cylinder 4, the semiconductor refrigeration plate 2 is arranged in the interlayer between the inner cylinder 1 and the outer cylinder 4, the cooling fan 3 is arranged at the bottom of the outer cylinder 4, and the outer side of the outer cylinder 4 has cooling fins 5 extending along the axial direction, and multiple cooling fins 5 are evenly distributed along the circumference of the outer cylinder 4; the inner cylinder 1 and the outer cylinder 4 are both made of aluminum alloy.

[0023] The bottom of the outer cylinder 4 is coaxially mounted with a protective ring 6. The diameter of the protective ring 6 is larger than that of the outer cylinder 4. The cooling fan 3, also larger in diameter than the outer cylinder 4, is mounted within the protective ring 6. The protective ring 6 has radially extending support ribs with connection holes. The cooling fins 5 of the outer cylinder 4 have threaded holes corresponding to the connection holes. The protective ring 6 is secured to the outer cylinder 4 by bolts passing through the connection holes and connected to the bolt holes. The control circuit, comprising a circular circuit board and components integrated thereon, is housed within the protective ring 6 and located in the center of the cooling fan 3 facing away from the outer cylinder 4. The control circuit has a smaller diameter than that of the cooling fan 3 and forms an air intake passageway between the protective ring 6 and the inner wall of the protective cover 6. The sidewalls of the protective ring 6 are provided with air intake holes extending therethrough. These holes are located at the end of the protective ring 6 facing away from the outer cylinder 4 and are evenly distributed along the axial direction.

[0024] In the solid-state hydrogen storage bottle of this embodiment, semiconductor cooling sheets are installed on the sidewalls of the inner cylinder. These sheets cool the inner cavity of the inner cylinder, which in turn increases the temperature outside the sheets. Air from the cooling fan flows along the sidewalls of the inner cylinder, removing heat from the outer surface of the sheets, allowing the sheets to continuously transport heat from the inner cylinder cavity. When in use, placing the hydrogen storage bottle within the inner cylinder cools it, thereby increasing hydrogen storage efficiency, making it easier to fill the bottle, and ensuring hydrogen storage capacity.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A hydrogen storage bottle refrigeration device, characterized in that: The invention comprises an inner cylinder (1) made of heat-conducting metal, one end of the inner cylinder (1) is open, and the inner diameter matches the outer diameter of the hydrogen storage bottle to be refrigerated; a semiconductor refrigeration sheet (2) is laid on the side wall of the inner cylinder (1), and a heat dissipation fan (3) is provided at the bottom of the inner cylinder (1), and the air outlet of the heat dissipation fan (3) is arranged along the axial direction of the inner cylinder (1) so that the air blown out by the heat dissipation fan (3) flows through the side wall of the inner cylinder (1); the semiconductor refrigeration sheet (2) and the heat dissipation fan (3) are connected to a power supply through a control circuit.

2. The hydrogen storage bottle refrigeration device according to claim 1, characterized in that: An outer cylinder (4) is coaxially sleeved on the outer side of the inner cylinder (1); the semiconductor refrigeration plate (2) is arranged in the interlayer between the inner cylinder (1) and the outer cylinder (4); and the heat dissipation fan (3) is arranged at the bottom of the outer cylinder (4); and the outer cylinder (4) is made of heat-conducting metal.

3. The hydrogen storage bottle refrigeration device according to claim 2, characterized in that: The outer side of the outer cylinder (4) is provided with heat dissipation fins (5) extending in the axial direction, and a plurality of the heat dissipation fins (5) are evenly distributed along the circumference of the outer cylinder (4).

4. The hydrogen storage bottle refrigeration device according to claim 2 or 3, characterized in that: The heat dissipation fan (3) is coaxially arranged at the bottom of the outer cylinder (4), and has a diameter greater than that of the outer cylinder (4).

5. The hydrogen storage bottle refrigeration device according to claim 4, characterized in that: The bottom of the outer cylinder (4) has a coaxially arranged protective ring (6), the diameter of the protective ring (6) is larger than the diameter of the outer cylinder (4), and the cooling fan (3) is installed in the protective ring (6).

6. The hydrogen storage bottle refrigeration device according to claim 5, characterized in that: The side wall of the protective ring (6) is provided with an air inlet hole which is arranged through it. The air inlet hole is located at an end of the protective ring (6) away from the outer cylinder (4), and a plurality of the air inlet holes are evenly distributed along the axial direction and the axial direction.

7. The hydrogen storage bottle refrigeration device according to claim 5, characterized in that: The protective ring (6) or the outer cylinder (4) has support ribs extending in the radial direction, and the support ribs have connecting holes; the protective ring (6) and the outer cylinder (4) are fixedly connected by bolts fitted in the connecting holes.

8. The hydrogen storage bottle refrigeration device according to claim 5, characterized in that: The control circuit is arranged in the protective ring (6) and is located in the middle of the side of the cooling fan (3) facing away from the outer cylinder (4); an air intake channel is formed between the control circuit and the protective ring (6).

9. The hydrogen storage bottle refrigeration device according to claim 2, characterized in that: The inner cylinder (1) and the outer cylinder (4) are both made of aluminum alloy.

10. A solid-state hydrogen storage bottle, characterized in that: It comprises a hydrogen storage bottle refrigeration device as claimed in any one of claims 1 to 9 and a hydrogen storage bottle arranged in the inner cylinder (1).

Images