Solid state hydrogen storage system

Abstract

The utility model discloses a solid hydrogen storage system, and belongs to the technical field of hydrogen storage module filling. The solid hydrogen storage system comprises a hydrogen filling main pipeline and a hydrogen storage assembly communicated with the hydrogen filling main pipeline, the starting end of the hydrogen charging main pipeline is communicated with a hydrogen source; the hydrogen storage assembly comprises a plurality of hydrogen filling branches, the hydrogen filling branches are connected to the hydrogen filling main pipeline, and each hydrogen filling branch is sequentially connected with a first valve, a plurality of solid hydrogen storage bottles and a second valve; wherein the first valve, the solid hydrogen storage bottle and the second valve are configured as follows: when the first valve is opened, the hydrogen charging branch is used for charging hydrogen into the solid hydrogen storage bottle, and the second valve is closed; or when the first valve is closed, the hydrogen charging branch stops charging hydrogen into the solid hydrogen storage bottle, and the second valve is opened. The number of valves is reduced, space is saved, and operation is convenient.

Description

Technical Field

[0001] This application belongs to the field of hydrogen storage module filling technology, and particularly relates to a solid hydrogen storage system. Background Technology

[0002] With the rapid development of fuel cell systems, hydrogen storage stations, and laboratory hydrogen supply, the safe and efficient storage of hydrogen has become one of the key technologies for realizing hydrogen energy applications.

[0003] Typically, a solid-state hydrogen storage module can have multiple hydrogen cylinder filling main pipelines, with an independent valve on the hydrogen delivery pipeline corresponding to each hydrogen cylinder, controlling one cylinder through each valve. This design, especially for solid-state hydrogen storage modules with a large number of internal hydrogen cylinders, requires a large number of valves. A large number of valves not only incurs high costs and occupies significant space, but also makes operating these valves cumbersome. Utility Model Content

[0004] This application aims to improve the technical problems existing in the prior art, such as the high cost and large space occupation of setting up a large number of valves, and the cumbersome process of operating these valves.

[0005] This application provides a solid-state hydrogen storage system, including: a main hydrogen filling pipeline and a hydrogen storage component connected to the main hydrogen filling pipeline;

[0006] The starting end of the main hydrogen charging circuit is connected to the hydrogen source;

[0007] The hydrogen storage component includes multiple hydrogen filling branches, each of which is connected to the main hydrogen filling branch. Each hydrogen filling branch is sequentially connected to a first valve, multiple solid hydrogen storage cylinders, and a second valve.

[0008] The first valve, the solid hydrogen storage cylinder, and the second valve are configured such that: when the first valve is open, the hydrogen charging branch charges the solid hydrogen storage cylinder with hydrogen, and the second valve is closed; or, when the first valve is closed, the hydrogen charging branch stops charging the solid hydrogen storage cylinder with hydrogen, and the second valve is open.

[0009] According to one embodiment of this application, a third valve and a pressure sensor are connected to the main hydrogen charging pipeline;

[0010] The pressure sensor is used to detect the pressure value inside the hydrogen charging main pipeline;

[0011] The third valve responds to the pressure value and closes when the pressure value reaches the first preset pressure value; or, opens when the pressure value reaches the second preset pressure value.

[0012] According to one embodiment of this application, a pressure sensor is provided on the main hydrogen filling pipeline;

[0013] The pressure sensor is used to detect the pressure value inside the hydrogen charging main pipeline;

[0014] The hydrogen source responds to the pressure value and shuts off when the pressure value reaches the first preset pressure value; or, it turns on when the pressure value reaches the second preset pressure value.

[0015] According to one embodiment of this application, the hydrogen source is a hydrogen production system or a hydrogen storage tank.

[0016] According to one embodiment of this application, a one-way valve is provided on the main hydrogen charging pipeline.

[0017] According to one embodiment of this application, the solid-state hydrogen storage system includes: a temperature control device, the temperature control device including: a temperature sensor and a cooling device;

[0018] The temperature sensor is used to detect the temperature value of the solid hydrogen storage bottle;

[0019] The cooling device responds to the temperature value and dissipates heat from the solid hydrogen storage bottle when the temperature value reaches a first preset temperature value.

[0020] According to one embodiment of this application, the detection end of the temperature sensor contacts the solid hydrogen storage cylinder; or, the detection end of the temperature sensor contacts the cooling medium flowing back into the cooling device.

[0021] According to one embodiment of this application, the solid-state hydrogen storage system further includes: a safety branch;

[0022] A safety valve is connected to the safety branch line. One end of the safety branch line is connected to the main hydrogen charging line, and the other end of the safety branch line is connected to the external environment.

[0023] According to one embodiment of this application, a fourth valve is also provided on the safety branch line in parallel with the safety valve. The fourth valve is configured to connect the hydrogen charging main line to the external environment when the pressure value in the safety branch line reaches a third preset pressure value.

[0024] According to one embodiment of this application, the solid hydrogen storage bottle includes a bottle body and a valve body;

[0025] The valve body is installed at the bottle opening of the bottle body, and the valve body is correspondingly connected to the hydrogen charging branch.

[0026] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects:

[0027] In this application, hydrogen from the hydrogen source enters multiple hydrogen charging branches of the hydrogen storage assembly along the main hydrogen charging pipeline. Each charging branch is sequentially connected to a first valve, a solid hydrogen storage cylinder, and a second valve. When the first valve is open, the second valve is closed, and the solid hydrogen storage cylinder is open, allowing hydrogen to be charged into the multiple solid hydrogen storage cylinders on each charging branch. Compared to existing technologies where each hydrogen storage cylinder has an independent valve, this application saves on the number of valves, the space occupied by these valves, and the process of operating these valves.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a schematic diagram of the solid hydrogen storage system provided in Embodiment 1 of this application;

[0031] Figure 2 This is a schematic diagram of the solid hydrogen storage bottle provided in Embodiment 1 of this application;

[0032] Figure 3 This is a schematic diagram of the solid-state hydrogen storage system provided in Embodiment 2 of this application;

[0033] Figure 4 This is a schematic diagram of the cabinet structure of the solid hydrogen storage system provided in Embodiment 2 of this application, with the cabinet door removed.

[0034] Figure label:

[0035] 100. Hydrogen charging main pipeline; 110. Pressure sensor; 120. Third valve; 130. Check valve;

[0036] 200. Hydrogen storage assembly; 210. Hydrogen filling branch; 211. First valve; 212. Solid hydrogen storage cylinder; 2121. Cylinder body; 2122. Valve body; 213. Second valve;

[0037] 300. Hydrogen exhaust pipeline;

[0038] 400, Safety branch; 410, Safety valve; 420, Fourth valve;

[0039] 500, Cabinet body; 510, First interface; 520, Second interface; 530, Cabinet door. Detailed Implementation

[0040] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0041] The following is for reference. Figures 1-2 A solid-state hydrogen storage system according to an embodiment of this application is described.

[0042] Solid-state hydrogen storage systems are used for efficient and safe storage of hydrogen and are suitable for applications such as fuel cell hydrogen supply systems, hydrogen storage stations, laboratory hydrogen supply, and distributed hydrogen supply. The solid-state hydrogen storage system includes: a main hydrogen filling pipeline 100, a hydrogen storage component 200, and a hydrogen discharge pipeline 300.

[0043] Please see Figure 1 The starting end of the hydrogen filling main pipeline 100 is used to connect with a hydrogen source to transport hydrogen from the hydrogen source to the hydrogen storage component 200. The hydrogen source can be a hydrogen production system or a hydrogen storage tank.

[0044] The hydrogen storage assembly 200 includes multiple hydrogen charging branches 210, one end of which is connected to the main hydrogen charging pipeline 100, and the other end of which is connected to the hydrogen discharge pipeline 300; and a first valve 211, a solid hydrogen storage bottle 212, and a second valve 213 are sequentially connected to the hydrogen charging branch 210.

[0045] The filling and retrieval of the solid hydrogen storage cylinder 212 of the hydrogen storage assembly 200 can be implemented in the following two scenarios:

[0046] Scenario 1: Filling solid hydrogen storage cylinder 212 with gas.

[0047] The first valve 211, the solid hydrogen storage bottle 212, and the second valve 213 are configured such that when the first valve 211 is open and the second valve 213 is closed, the solid hydrogen storage bottle 212 is open, allowing hydrogen to be filled into the multiple solid hydrogen storage bottles 212 on each hydrogen filling branch 210.

[0048] In this embodiment, hydrogen from the hydrogen source enters multiple hydrogen charging branches 210 of the hydrogen storage assembly 200 along the main hydrogen charging pipeline 100, and charges the solid hydrogen storage cylinders 212 of each hydrogen charging branch 210. To improve the hydrogen charging efficiency, each hydrogen charging branch 210 can have multiple solid hydrogen storage cylinders 212, and multiple solid hydrogen storage cylinders 212 can be charged with hydrogen in parallel. In actual implementation, one hydrogen charging branch 210 can be selected for hydrogen charging, and the other hydrogen charging branches 210 can be disconnected. Of course, multiple hydrogen charging branches 210 can also be selected for hydrogen charging. This embodiment does not impose any restrictions.

[0049] To determine whether the solid hydrogen storage cylinder 212 is full, existing technologies often use weighing, i.e., a weighing device is used to detect whether the weight of the solid hydrogen storage cylinder 212 reaches the set full weight. Unlike this, the solid hydrogen storage system of this application does not use a weighing device. Instead, it determines whether the solid hydrogen storage cylinder 212 is full by detecting the hydrogen filling pressure on the main hydrogen filling pipeline 100 using a pressure sensor 110. Specifically, the solid hydrogen storage system has a pressure sensor 110 connected to the main hydrogen filling pipeline 100. The pressure sensor 110 is used to monitor the hydrogen pressure in the pipeline in real time during the filling process. When the pressure value detected by the pressure sensor 110 reaches a first preset pressure value, the hydrogen source is shut off or the third valve 120 located on the main hydrogen filling pipeline 100 is closed to terminate the filling process and ensure that the solid hydrogen storage cylinder 212 does not pose a safety risk due to overfilling.

[0050] It should be noted that the solid-state hydrogen storage cylinder 212 typically uses metal hydrides (such as titanium-iron alloys, magnesium-based alloys, etc.) as the hydrogen storage material. This material absorbs and releases hydrogen through a reversible reaction. When hydrogen is filled into the solid-state hydrogen storage cylinder 212, it is not immediately absorbed entirely, but gradually diffuses and enters the crystal lattice of the hydrogen storage material, releasing heat. Therefore, for a short period of time after the solid-state hydrogen storage cylinder 212 is filled with hydrogen, hydrogen is still being slowly absorbed, which causes a drop in pressure inside the cylinder.

[0051] In some examples, a third valve 120 and a pressure sensor 110 are connected to the hydrogen charging main pipeline 100; the pressure sensor 110 is used to detect the pressure value inside the hydrogen charging main pipeline 100; the third valve 120 responds to the pressure value and closes when the pressure value reaches a first preset pressure value; or, opens when the pressure value reaches a second preset pressure value.

[0052] In other examples, a pressure sensor 110 is provided on the hydrogen source; the pressure sensor 110 is used to detect the pressure value in the hydrogen charging main pipeline 100; the hydrogen source responds to the pressure value and shuts off when the pressure value reaches a first preset pressure value; or, opens when the pressure value reaches a second preset pressure value.

[0053] In both examples above, the pressure sensor 110 is used to monitor and detect the hydrogen pressure in the pipeline in real time during the hydrogen filling process, ensuring that the process of filling hydrogen into the hydrogen storage component 200 is safe and controllable.

[0054] In actual implementation, the third valve 120 is installed on the hydrogen charging main pipeline 100, and the hydrogen charging main pipeline 100 is also equipped with a one-way valve 130. The third valve 120, the one-way valve 130 and the pressure sensor 110 are arranged in sequence along the flow direction of hydrogen in the hydrogen charging main pipeline 100.

[0055] In some embodiments, when the hydrogen source is a pressurized hydrogen storage tank, the third valve 120 can be controlled by the controller to open when the pressure value detected by the pressure sensor 110 is lower than a second preset pressure value, and to close when the pressure value detected by the pressure sensor 110 is higher than a first preset pressure value. The one-way valve 130 ensures that hydrogen can only flow in one direction, that is, only from the main hydrogen filling pipeline 100 to each hydrogen filling branch 210.

[0056] In some embodiments, when the hydrogen source is a hydrogen production system, the hydrogen production system can respond to feedback from the pressure sensor 110. When the pressure value detected by the pressure sensor 110 is lower than a second preset pressure value, the hydrogen production system starts producing hydrogen and supplies hydrogen to the solid hydrogen storage system. When the pressure value detected by the pressure sensor 110 is higher than a first preset pressure value, the hydrogen production system stops producing hydrogen and does not need to supply hydrogen to the solid hydrogen storage system. In actual implementation, the first and second preset pressure values ​​can be defined according to the characteristics of the selected solid hydrogen storage cylinder 212. For example, if the pressure value of the hydrogen filling main pipeline 100 is 1 MPa when a solid hydrogen storage cylinder 212 is full, the first preset pressure value can be set to 1.05 MPa and the second preset pressure value can be set to 0.995 MPa. By limiting the first and second preset pressure values, the start-up frequency of the hydrogen production system can be reduced, and the service life of the hydrogen production system can be extended.

[0057] In actual implementation, the third valve 120 can be a solenoid valve.

[0058] Scenario 2: Remove the inflated solid hydrogen storage cylinder 212 for use.

[0059] The first valve 211, the solid hydrogen storage cylinder 212, and the second valve 213 are configured such that when the first valve 211 is closed, hydrogen charging of the solid hydrogen storage cylinder 212 stops, and the second valve 213 opens. Specifically, the solid hydrogen storage cylinder 212 includes a cylinder body 2121 and a valve body 2122; the valve body 2122 is installed at the opening of the cylinder body 2121, and the valve body 2122 is correspondingly connected to the hydrogen charging branch 210 (see...). Figure 2 ).

[0060] In this embodiment, when the solid hydrogen storage cylinder 212 needs to be removed for use, the first valve 211 is closed and the second valve 213 is opened. After the hydrogen in the hydrogen charging branch 210 is discharged, the valve body 2122 of the solid hydrogen storage cylinder 212 disconnects the solid hydrogen storage cylinder 212 from the hydrogen charging branch 210.

[0061] It should be noted that the relevant technology connects multiple solid hydrogen storage cylinders 212 in parallel to the hydrogen filling main pipeline 100. Each branch of the solid hydrogen storage cylinder 212 is equipped with an independent control valve. Although the filling of a single solid hydrogen storage cylinder 212 can be controlled, this method results in a complicated pipeline, numerous valves, and inconvenient disassembly and assembly of the solid hydrogen storage cylinder 212.

[0062] In the above embodiments of this application, multiple hydrogen charging branches 210 are connected in parallel to the main hydrogen charging branch 100. Each hydrogen charging branch 210 is provided with a first valve 211, multiple solid hydrogen storage cylinders 212 and a second valve 213 in sequence. The first valve 211 and the second valve 213 on each hydrogen charging branch 210 enable the solid hydrogen storage cylinders 212 on the hydrogen charging branch 210 to be independently controlled and monitored for hydrogen charging. This simplifies the hydrogen charging process, saves independent control valves, and improves the gas filling consistency of the solid hydrogen storage cylinders 212.

[0063] When the pressure on the main hydrogen filling line 100 is between the second preset pressure value and the first preset pressure value, it can be determined that the hydrogen filling of the solid hydrogen storage cylinder 212 is basically complete. When the solid hydrogen storage cylinder 212 can be removed for use as needed, first close the first valve 211 and open the second valve 213 to discharge the hydrogen in the hydrogen filling branch 210. The valve body 2122 of the solid hydrogen storage cylinder 212 disconnects the solid hydrogen storage cylinder 212 from the hydrogen filling branch 210, ensuring that the hydrogen in the hydrogen filling branch 210 is completely discharged and no residual hydrogen remains, thus avoiding safety hazards. Of course, when the solid hydrogen storage cylinder 212 is not needed, hydrogen filling can continue within the filling pressure range between the preset second pressure value and the preset first pressure value.

[0064] In actual implementation, the first valve 211 and the second valve 213 can be manual valves or automatic control valves. This embodiment does not impose any restrictions.

[0065] Please see Figure 1 In some embodiments, the solid-state hydrogen storage system further includes: a safety branch 400;

[0066] A safety valve 410 is connected to the safety branch 400. One end of the safety branch 400 is connected to the hydrogen charging main line 100, and the other end of the safety branch 400 is connected to the hydrogen discharge line 300.

[0067] During the hydrogen charging process, if the pressure of the main hydrogen charging line 100 exceeds the safe range, the safety valve 410 will automatically open to release the pressure of the main hydrogen charging line 100, preventing the pressure of the main hydrogen charging line 100 from rising further and causing an accident.

[0068] Furthermore, a fourth valve 420 is connected to the safety branch 400. The fourth valve 420 is configured to connect the hydrogen charging main line 100 and the hydrogen discharge line 300 when the pressure value in the safety branch 400 reaches a third preset pressure value. In actual implementation, the fourth valve 420 can be a solenoid valve.

[0069] It should be noted that the combined use of safety valve 410 and fourth valve 420 provides dual safety assurance. Safety valve 410, as a mechanical, automatically activated protection device, ensures pressure relief in extreme overpressure conditions. Fourth valve 420 can react to real-time pressure changes in the hydrogen charging main pipeline 100, providing pressure relief.

[0070] In some embodiments, the solid-state hydrogen storage system further includes a temperature control device, which includes a temperature sensor and a cooling device.

[0071] When the solid hydrogen storage cylinder 212 is filled with hydrogen, it releases a large amount of heat. The detection end of the temperature sensor comes into contact with the solid hydrogen storage cylinder 212 or with the cooling medium flowing back in the cooling device to detect the surface temperature of the solid hydrogen storage cylinder 212. The temperature or flow rate of the cooling medium is adjusted by the temperature control device to achieve the effect of temperature control.

[0072] The cooling device can be an air-cooled device or a liquid-cooled device. Specifically, the air-cooled device can be a refrigeration fan, with the detection end of the temperature sensor in contact with the solid hydrogen storage cylinder 212 or located at the return air inlet of the refrigeration fan to detect the temperature of the gas returning to the return air inlet of the refrigeration fan and obtain the surface temperature of the solid hydrogen storage cylinder 212. The liquid-cooled device can be a liquid cooling plate or a water bath. When the temperature control device is a water bath, the detection end of the temperature sensor is located in the cooling medium returning to the water bath to obtain the surface temperature of the solid hydrogen storage cylinder 212.

[0073] In this embodiment, an exothermic reaction occurs when hydrogen is filled into the solid hydrogen storage cylinder 212. If the temperature is too high, it will affect the hydrogen storage efficiency of the solid hydrogen storage cylinder 212. A temperature sensor monitors the temperature change in real time during the hydrogen filling process. When the temperature reaches the set first preset temperature value, a signal is sent to the controller, which then controls the activation of the cooling device to dissipate heat.

[0074] In some embodiments, the solid-state hydrogen storage system further includes: a cabinet 500;

[0075] Multiple solid hydrogen storage cylinders 212 on each hydrogen charging branch 210 are arranged side-by-side inside the cabinet 500. The solid hydrogen storage cylinders 212 on different hydrogen charging branches 210 are set at different heights inside the cabinet 500, which can effectively utilize the internal space of the cabinet 500. Specifically, the cabinet 500 is provided with a first interface 510 and a second interface 520; the first interface 510 is connected to the starting end of the main hydrogen charging pipeline 100 and is used to connect to the hydrogen outlet end of the hydrogen source; the second interface 520 is connected to the end of the hydrogen discharge pipeline 300.

[0076] More specifically, the cabinet 500 is equipped with an openable cabinet door 530, and the valve bodies 2122 of the first valve 211, the multiple solid hydrogen storage cylinders 212, and the second valve 213 are all positioned facing the cabinet door 530. The design of the cabinet door 530 not only facilitates daily operation but also allows for regular inspection and maintenance of the first valve 211, the valve bodies 2122 of the multiple solid hydrogen storage cylinders 212, and the second valve 213 when needed.

[0077] This invention utilizes multiple hydrogen charging branches 210 on the main hydrogen charging pipeline 100. Each hydrogen charging branch 210 is equipped with a first valve 211, multiple solid hydrogen storage cylinders 212, and a second valve 213 along the direction of hydrogen flow. By opening and closing the first valve 211 and the second valve 213, the hydrogen filling of multiple solid hydrogen storage cylinders 212 can be controlled simultaneously, reducing the use of valves, simplifying pipeline design, and facilitating operation.

[0078] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0079] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0080] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0081] In the description of this application, "multiple" means two or more.

[0082] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0083] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0085] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A solid-state hydrogen storage system, characterized in that, include: Hydrogen charging main pipeline and hydrogen storage components connected to the hydrogen charging main pipeline; The starting end of the main hydrogen charging circuit is connected to the hydrogen source; The hydrogen storage component includes multiple hydrogen filling branches, each of which is connected to the main hydrogen filling branch. Each hydrogen filling branch is sequentially connected to a first valve, multiple solid hydrogen storage cylinders, and a second valve. The first valve, the solid hydrogen storage cylinder, and the second valve are configured such that: when the first valve is open, the hydrogen charging branch charges the solid hydrogen storage cylinder with hydrogen, and the second valve is closed; or, when the first valve is closed, the hydrogen charging branch stops charging the solid hydrogen storage cylinder with hydrogen, and the second valve is open.

2. The solid-state hydrogen storage system according to claim 1, characterized in that, A third valve and a pressure sensor are connected to the main hydrogen charging line. The pressure sensor is used to detect the pressure value inside the hydrogen charging main pipeline; The third valve responds to the pressure value and closes when the pressure value reaches a first preset pressure value; or, opens when the pressure value reaches a second preset pressure value.

3. The solid-state hydrogen storage system according to claim 1, characterized in that, A pressure sensor is installed on the main hydrogen charging line; The pressure sensor is used to detect the pressure value inside the hydrogen charging main pipeline; The hydrogen source responds to the pressure value and shuts off when the pressure value reaches a first preset pressure value; or, it turns on when the pressure value reaches a second preset pressure value.

4. The solid-state hydrogen storage system according to claim 2 or 3, characterized in that, The hydrogen source is either a hydrogen production system or a hydrogen storage tank.

5. The solid-state hydrogen storage system according to claim 2 or 3, characterized in that, A one-way valve is installed on the main hydrogen charging pipeline.

6. The solid-state hydrogen storage system according to claim 1, characterized in that, The solid-state hydrogen storage system includes a temperature control device, which includes a temperature sensor and a cooling device. The temperature sensor is used to detect the temperature value of the solid hydrogen storage bottle; The cooling device responds to the temperature value and dissipates heat from the solid hydrogen storage bottle when the temperature value reaches a first preset temperature value.

7. The solid-state hydrogen storage system according to claim 6, characterized in that, The detection end of the temperature sensor contacts the solid hydrogen storage cylinder; or, the detection end of the temperature sensor contacts the cooling medium flowing back into the cooling device.

8. The solid-state hydrogen storage system according to claim 1, characterized in that, The solid-state hydrogen storage system also includes: a safety branch; A safety valve is connected to the safety branch line. One end of the safety branch line is connected to the main hydrogen charging line, and the other end of the safety branch line is connected to the external environment.

9. The solid-state hydrogen storage system according to claim 8, characterized in that, The safety branch is also equipped with a fourth valve connected in parallel with the safety valve. The fourth valve is configured to connect the hydrogen charging main branch to the external environment when the pressure value in the safety branch reaches a third preset pressure value.

10. The solid-state hydrogen storage system according to claim 1, characterized in that, The solid hydrogen storage cylinder includes a cylinder body and a valve body; The valve body is installed at the bottle opening of the bottle body, and the valve body is correspondingly connected to the hydrogen charging branch.

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