A solid-state hydrogen storage bottle unit device and a hydrogen release control method

Abstract

The application belongs to the technical field of hydrogen storage, and discloses a solid-state hydrogen storage bottle unit device and a hydrogen release control method. The device comprises a barrel-shaped shell main body structure, one end of the barrel is sealed, the other end is always open, a guide rail is arranged at the bottom of the barrel, heat insulation cotton is arranged on the inner surface of the guide rail, a heating sheet is attached to the inner side of the heat insulation cotton, a guide groove is arranged at the edge of the guide rail of the always open end of the barrel, a base is arranged at the bottom of the guide rail, and a head clamp is arranged at the always open end of the barrel. The device is designed for air duct integrated heat recovery of fuel cells under different working conditions; can be used alone, can be applied in large quantities, and is integrated and modularized; and the device structure is simple and convenient to process.

Description

Technical Field

[0001] This invention belongs to the field of hydrogen storage technology, specifically relating to a solid hydrogen storage cylinder unit device and a hydrogen release control method. Background Technology

[0002] Currently, hydrogen energy, as an efficient and clean energy form, is gradually gaining widespread attention. However, the storage and transportation of hydrogen energy has always been a key issue restricting its commercial application. Against this backdrop, solid-state hydrogen storage technology, with its high hydrogen storage density and reliable safety performance, has become one of the most effective ways to overcome the bottlenecks in hydrogen storage and transportation. Solid-state hydrogen storage technology refers to the use of solid materials to physically or chemically adsorb hydrogen, thereby achieving hydrogen storage. Compared with traditional gaseous storage technologies, solid-state hydrogen storage technology has significant advantages. First, the hydrogen storage density of solid-state hydrogen storage is much higher than that of gaseous storage, meaning that more hydrogen can be stored in the same volume, thus improving storage efficiency. Second, solid-state hydrogen storage operates at lower pressures, reducing safety risks during storage and transportation. Finally, solid-state hydrogen storage materials generally possess good stability and safety, ensuring the long-term safe storage of hydrogen. Among these, metal hydride hydrogen storage is currently the most promising and fastest-developing solid-state hydrogen storage method. Solid-state hydrogen storage includes various technical routes such as magnesium-based hydrogen storage materials, titanium-based hydrogen storage materials, and rare-earth-based hydrogen storage materials. Titanium-based / rare-earth hydrogen storage materials exhibit good hydrogen absorption and desorption performance and stability at room temperature, making them widely used. However, due to the need for pressure resistance, solid-state hydrogen storage is currently mostly bottled.

[0003] Since solid hydrogen storage materials typically generate heat during charging / discharging, they require air or water cooling to remove or transfer heat through the cylinder. While most solutions utilize water bath cooling or heating, these methods are more suitable for indoor or well-equipped environments and cannot be widely applied in mobile scenarios. Furthermore, the inability to extract hydrogen laterally under a water bath necessitates significant space requirements and vertical space constraints, making operation inconvenient. Additionally, solid hydrogen storage cylinders are quite heavy, with a hydrogen density of approximately 1.4-2%. Therefore, it is crucial to consider how to securely fasten the cylinders in mobile environments without hindering disassembly, refilling, or charging, which is also critical for cylinder replacement and maintenance. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a solid-state hydrogen storage cylinder unit device and a hydrogen release control method, which integrates heat recovery design for fuel cells under different operating conditions; it can be used independently or expanded in large quantities, and can be integrated and modularized; the device has a simple structure and is easy to manufacture.

[0005] The above-mentioned objective of the present invention is achieved through the following technical solution: a solid hydrogen storage cylinder unit device, comprising: a cylindrical outer shell main structure, one end of the cylinder is sealed and the other end is normally open, a guide rail is provided at the bottom of the cylinder, the inner surface of the guide rail is covered with heat insulation cotton, a heating element is attached to the inner side of the heat insulation cotton, a guide groove is provided on the edge of the guide rail at the normally open end of the cylinder, a base is provided at the bottom of the guide rail, and a head clamp is provided at the normally open end of the cylinder.

[0006] Furthermore, the heating element is also equipped with a temperature sensor.

[0007] Furthermore, the main structure of the outer shell is made of metal, and the diameter of the cylinder is larger than the sum of the diameter of the hydrogen storage bottle and the thickness of the insulation cotton, which facilitates the unobstructed insertion of the hydrogen storage bottle to the bottom.

[0008] Furthermore, the head clamp has a hemispherical structure surrounding the opening of the hydrogen storage bottle. One end is connected to a hinge and can rotate, while the other end is equipped with a locking mechanism. When rotated open, the hydrogen storage bottle can be pulled out; when rotated closed, the hydrogen storage bottle can be locked axially.

[0009] Furthermore, the base is welded to the main body structure of the outer shell and is used to support and fix the main body structure of the outer shell. The base has mounting holes and can be fixed to a mobile vehicle.

[0010] Another objective of this invention is to protect the hydrogen release control method using the aforementioned solid hydrogen storage cylinder unit device. The steps are as follows: The head clamp is rotated open, and the hydrogen storage cylinder is slid into the device along the guide groove of the outer shell structure. The head clamp is then rotated to tighten the hydrogen storage cylinder. Simultaneously, the hydrogen storage cylinder presses against the heating element to achieve tight contact. During actual hydrogen release, the heating element continuously heats, and a temperature sensor monitors the temperature in real time. When the temperature exceeds a certain value, the power supply to the heating element is disconnected. If the hydrogen storage cylinder and the heating element are not in close contact, the heating element can quickly heat up and disconnect the heating output to ensure system safety.

[0011] The advantages of this invention compared to existing technologies are as follows: This invention can effectively secure the hydrogen storage tank on a mobile device and provide heating, hydrogen release, and temperature monitoring. It can also be used with quick-connect fittings for rapid disassembly of the hydrogen storage tank and separate water bath hydrogen filling. The device surface can be perforated or fully sealed, and the air duct integrated heat recovery design is designed for fuel cells under different operating conditions. It can be used independently or expanded in large quantities for integrated and modular applications. The device has a simple structure and is easy to process. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1 This is a schematic diagram of the solid hydrogen storage bottle unit device of the present invention; Figure 2 This is a three-dimensional schematic diagram of the solid hydrogen storage bottle unit device of the present invention; Figure 3 This is a schematic diagram of the hydrogen release control process of the solid hydrogen storage bottle unit device of the present invention; Figure 4 This is a schematic diagram illustrating multiple integrated applications of the solid hydrogen storage bottle unit device of the present invention.

[0013] In the diagram: 1. Main shell structure; 2. Guide rail; 3. Insulation cotton; 4. Heating element; 5. Base; 6. Head clamp; 7. Guide groove. Detailed Implementation

[0014] The present invention is described in detail below through specific embodiments, but this does not limit the scope of protection of the present invention. Unless otherwise specified, the experimental methods used in the present invention are all conventional methods, and the experimental equipment, materials, reagents, etc. used can all be obtained commercially. Example

[0015] A unit device for a solid hydrogen storage cylinder ( Figure 1 The feature of the device includes a main shell structure 1, a head clamp 6, insulation cotton 3, a heating element 4, a temperature sensor, and a base 5.

[0016] The main body structure 1 of the outer shell should be a cylindrical metal shell, with one end sealed and the other end normally open. Except for one side of the cylinder serving as a guide groove 7, the main body of the outer shell (including the cylindrical end face) can be largely perforated or not perforated, depending on the actual application conditions (only the perforated design is shown here). The diameter of the cylindrical tube is slightly larger than the sum of the diameter of the hydrogen storage cylinder and the thickness of the insulation cotton 3, facilitating unobstructed insertion of the hydrogen storage cylinder to the bottom. If the fuel cell hot air needs to be utilized, a perforated design can be used; if the fuel cell is far away and hot air cannot be utilized, a non-perforated design can be used.

[0017] The main body structure 1 of the outer shell should be equipped with a guide rail 2, insulation cotton 3, a heating element 4, and a temperature sensor. The guide rail 2 supports the hydrogen storage bottle and ensures that the hydrogen storage bottle is smoothly inserted into the main body of the cylinder. The insulation cotton 3 is attached to the inner side of the main body structure, and the heating element 4 is attached to the inner side of the insulation cotton 3 and located at the bottom, so that the hydrogen storage bottle can fit tightly against the heating element 4 when inserted. The power of the heating element 4 is determined according to the actual hydrogen release. The heating element 4 should be equipped with a temperature sensor to monitor the temperature of the heating element 4 and ensure that it does not exceed 60°C.

[0018] The head clamp 6 is hemispherical in shape around the opening of the hydrogen storage bottle. One end is connected to a hinge and can rotate, while the other end should have a locking mechanism. When rotated open, the hydrogen storage bottle can be pulled out, and when rotated closed, the hydrogen storage bottle can be locked axially.

[0019] The base 5 and the outer shell main structure 1 should be welded together as one piece, mainly used to support and fix the outer shell main structure, and has mounting holes on it, which can be fixed on a mobile vehicle. Example

[0020] The device is the same as in Example 1, and its working principle is as follows: Figure 2 As shown, rotate the head clamp 6 to open it, slide the hydrogen storage bottle into the device along the guide groove 7 of the outer shell main structure 1, and rotate the head clamp 6 to tighten the hydrogen storage bottle. At the same time, the hydrogen storage bottle will press against the heating element 4 (including the temperature sensor) to achieve a tight contact. In terms of control, during the actual hydrogen release process, the heating element 4 continuously heats, and the temperature sensor monitors in real time. When the temperature exceeds (a certain value of 50-60℃), the power supply to the heating element 4 is disconnected. If the hydrogen storage bottle and the heating element 4 are not in tight contact, the heating element 4 can also quickly heat up and disconnect the heating output to ensure system safety. The specific strategy is as follows: Figure 3 This strategy can address the uneven hydrogen release from multiple solid hydrogen storage cylinders in multi-integrated hydrogen storage systems, thereby improving the practicality of multi-cylinder solid hydrogen storage.

[0021] For multiple integrated hydrogen storage applications, an additional frame can be added to arrange and fix all the devices. The frame can be designed according to the actual situation. This fully demonstrates the integration, convenience, and high flexibility of this invention. Figure 4 .

[0022] The embodiments described above are merely preferred embodiments of the present invention, and not all feasible embodiments of the present invention. Any obvious modifications made by those skilled in the art without departing from the principles and spirit of the present invention should be considered to be included within the scope of protection of the claims of the present invention.

Claims

1. A solid hydrogen storage cylinder unit device, characterized in that, include: The main structure of the cylindrical shell (1) is sealed at one end and open at the other end. The bottom of the cylindrical shell is provided with a guide rail (2). The inner surface of the guide rail (2) is covered with insulation cotton (3). The heating element (4) is attached to the inner side of the insulation cotton (3). The edge of the guide rail (2) at the open end of the cylindrical shell is provided with a guide groove (7). The bottom of the guide rail (2) is provided with a base (5). The open end of the cylindrical shell is provided with a head clamp (6).

2. The solid hydrogen storage cylinder unit device according to claim 1, characterized in that, The heating element (4) is also equipped with a temperature sensor.

3. The solid hydrogen storage cylinder unit device according to claim 1, characterized in that, The outer shell main structure (1) is made of metal material, and the diameter of the cylinder is larger than the sum of the diameter of the hydrogen storage bottle and the thickness of the insulation cotton (3), so that the hydrogen storage bottle can be inserted into the bottom without obstruction.

4. The solid hydrogen storage cylinder unit device according to claim 1, characterized in that, The head clamp (6) is hemispherical around the opening of the hydrogen storage bottle. One end is connected to a hinge and can rotate, while the other end is equipped with a locking mechanism. When rotated open, the hydrogen storage bottle can be pulled out, and when rotated closed, the hydrogen storage bottle can be locked from the axial direction.

5. The solid hydrogen storage cylinder unit device according to claim 1, characterized in that, The base (5) is welded to the outer shell main structure (1) and is used to support and fix the outer shell main structure (1). The base (5) has mounting holes and can be fixed on a mobile vehicle.

6. The hydrogen release control method using the solid hydrogen storage cylinder unit device according to claim 1, characterized in that, The steps are as follows: Rotate the head clamp (6) to open it, slide the hydrogen storage bottle into the device along the guide groove (7) of the outer shell main structure (1), rotate the head clamp (6) to tighten the hydrogen storage bottle, and at the same time, the hydrogen storage bottle will press the heating plate (4) to achieve close contact. During the actual hydrogen release process, the heating plate (4) continues to heat, and the temperature sensor monitors it in real time. When the temperature exceeds a certain value, the power supply of the heating plate (4) is disconnected. If the hydrogen storage bottle and the heating plate (4) are not tightly attached, the heating plate (4) can also heat up quickly and disconnect the heating output to ensure system safety.

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