Solid hydrogen storage and supply system

Abstract

The utility model provides a solid-state hydrogen storage and supply system which comprises a plurality of solid-state hydrogen storage and supply devices, a main gas supply pipeline, a plurality of branch gas supply pipelines, a main hydrogen outlet pipeline, a plurality of branch hydrogen outlet pipelines and hydrogenation guns, and the solid-state hydrogen storage and supply devices, the branch gas supply pipelines and the branch hydrogen outlet pipelines are in one-to-one correspondence. Each solid hydrogen storage and supply device is communicated with one end of a main gas supply pipeline through a corresponding branch gas supply pipeline, the other end of the main gas supply pipeline is used for being communicated with a gas source for supplying inert gas, and each solid hydrogen storage and supply device is communicated with one end of a main hydrogen outlet pipeline through a corresponding branch hydrogen outlet pipeline. The other end of the main hydrogen outlet pipeline is communicated with the hydrogenation gun, each branch gas supply pipeline is provided with a first control valve, and each branch hydrogen outlet pipeline is provided with a second control valve. According to the solid-state hydrogen storage and supply system, the solid-state hydrogen storage and supply devices and the main hydrogen outlet pipeline can be swept by an external gas source at the same time, the safety is high, the plurality of solid-state hydrogen storage and supply devices are arranged, uninterrupted hydrogen supply can be realized, and the solid-state hydrogen storage and supply system is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen energy supply devices, in particular to a solid-state hydrogen storage and supply system. Background Art

[0002] Hydrogen storage is usually divided into three types: gaseous hydrogen storage, liquid hydrogen storage and solid hydrogen storage. Solid hydrogen storage has the advantages of high hydrogen storage density and good safety performance compared to the first two. Solid hydrogen storage currently mainly includes physical adsorption and chemical hydride methods. Due to its high hydrogen storage density and good safety performance, solid hydrogen storage is widely used.

[0003] However, the current traditional hydrogenation mainly includes gas hydrogenation and liquid hydrogenation, and the gas hydrogenation method is more commonly used, generally completed through gas hydrogenation stations. The hydrogenation method carried out through hydrogenation stations requires a large area, many equipments, and large pressure vessels. It requires a larger site and more professionals to carry out maintenance and hydrogenation operations of the hydrogenation stations, which wastes manpower and material resources. Utility Model Content

[0004] In view of this, the utility model aims to provide a solid-state hydrogen storage and supply system, which is safer and more convenient to use.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A solid-state hydrogen storage and supply system comprises a plurality of solid-state hydrogen storage and supply devices, a main gas supply pipeline, a plurality of branch gas supply pipelines, a main hydrogen outlet pipeline, a plurality of branch hydrogen outlet pipelines and a hydrogenation gun; wherein,

[0007] The plurality of solid-state hydrogen storage and supply devices, the plurality of branch gas supply pipelines and the plurality of branch hydrogen outlet pipelines correspond one to one;

[0008] Each of the solid-state hydrogen storage and supply devices is connected to one end of the main gas supply pipeline through the corresponding branch gas supply pipeline, and the other end of the main gas supply pipeline is used to be connected to a gas source for supplying inert gas;

[0009] Each of the solid-state hydrogen storage and hydrogen supply devices is connected to one end of the main hydrogen outlet pipeline through the corresponding branch hydrogen outlet pipeline, and the other end of the main hydrogen outlet pipeline is connected to the hydrogenation gun;

[0010] Each of the branch gas supply pipelines is provided with a first control valve, and each of the branch hydrogen outlet pipelines is provided with a second control valve.

[0011] Furthermore, the main hydrogen outlet pipeline is connected to the main gas supply pipeline through a bypass pipeline, and a third control valve is provided on the bypass pipeline.

[0012] Furthermore, each of the solid-state hydrogen storage and supply devices comprises a solid hydrogen storage container and an electric heating device;

[0013] The solid hydrogen storage container is provided with a receiving cavity, the receiving cavity is used to receive the solid hydrogen storage material, one side of the receiving cavity is provided with an opening for the solid hydrogen storage material to enter and exit, and the solid hydrogen storage container is provided with a plugging cover for opening and closing the opening;

[0014] The electric heating device is arranged on the solid hydrogen storage container, and the electric heating device is used to heat the solid hydrogen storage material;

[0015] The accommodating cavity is communicated with the corresponding branch gas supply pipeline and the branch hydrogen outlet pipeline respectively.

[0016] Furthermore, a first one-way valve is provided on the main gas supply pipeline, and the first one-way valve is used to control the one-way flow of the gas in the main gas supply pipeline to the solid-state hydrogen storage and hydrogen supply device; and / or,

[0017] A breakaway valve is provided at one end of the main hydrogen outlet pipeline connected to the hydrogenation gun, and the hydrogenation gun is connected to the breakaway valve via a hose.

[0018] Furthermore, it also includes a control device, which is electrically connected to each of the electric heating devices, each of the first control valves, each of the second control valves, and the third control valve, respectively, and each of the first control valves, each of the second control valves, and the third control valve is a solenoid valve.

[0019] Furthermore, a temperature detection device is provided on the main hydrogen outlet pipeline, and the temperature detection device is used to detect the temperature of the air flow flowing through the main hydrogen outlet pipeline; the temperature detection device is electrically connected to the control device; and / or,

[0020] A pressure detection device is provided on the main hydrogen outlet pipeline, and the pressure detection device is used to detect the pressure of the air flow flowing through the main hydrogen outlet pipeline; the pressure detection device is electrically connected to the control device.

[0021] Furthermore, a compressor is provided on the main hydrogen outlet pipeline, and the compressor is electrically connected to the control device.

[0022] Furthermore, a filter is provided on the main hydrogen outlet pipeline, the filter is provided upstream of the compressor, and the filter is used to filter the airflow flowing to the compressor;

[0023] The solid-state hydrogen storage and supply system further comprises a pressure relief pipeline, one end of which is connected to the main hydrogen outlet pipeline, the connecting portion between the pressure relief pipeline and the main hydrogen outlet pipeline is located upstream of the filter, and the other end of the pressure relief pipeline is connected to the atmosphere;

[0024] The pressure relief pipeline is provided with a safety valve and a second one-way valve, wherein the safety valve is arranged upstream of the second one-way valve, and the second one-way valve is used to control the one-way flow of the airflow in the pressure relief pipeline toward the atmosphere.

[0025] Furthermore, the solid-state hydrogen storage and supply system further comprises a cooling device, which comprises a coolant circulation pipeline, and a coolant circulation pump, a hydrogen cooler, and a radiator connected through the coolant circulation pipeline;

[0026] The hydrogen cooler is arranged on the main hydrogen outlet pipeline, and the hydrogen cooler is arranged downstream of the compressor; a cooling fan is arranged on one side of the radiator;

[0027] The coolant circulation pump and the cooling fan are electrically connected to the control device respectively.

[0028] Furthermore, a flow meter is provided on the main hydrogen outlet pipeline, and the flow meter is provided downstream of the compressor;

[0029] The flow meter is used to detect the gas flow rate flowing through the main hydrogen outlet pipeline, and the flow meter is electrically connected to the control device.

[0030] Compared with the prior art, the utility model has the following advantages:

[0031] The solid-state hydrogen storage and supply system of the utility model can make an external gas source clean the solid-state hydrogen storage and supply device and the main hydrogen outlet pipeline at the same time, so the safety is relatively high, and multiple solid-state hydrogen storage and supply devices can realize uninterrupted hydrogen supply, which is more convenient to use. The solid-state hydrogen storage and supply system can be prepared into a smaller hydrogen charging pile setting, which occupies a small area and does not require a large pressure vessel. It can be operated by one person, which is easy to operate and saves manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0033] Figure 1 This is a structural schematic diagram of a solid-state hydrogen storage and supply system according to an embodiment of the utility model;

[0034] Figure 2 This is a principle block diagram of the solid-state hydrogen storage and supply system described in an embodiment of the utility model.

[0035] Description of reference numerals:

[0036] 1. Solid-state hydrogen storage and supply device; 2. Main gas supply pipeline; 3. Branch gas supply pipeline; 4. Main hydrogen outlet pipeline; 5. Branch hydrogen outlet pipeline; 6. Hydrogenation gun; 7. First control valve; 8. Breakaway valve; 9. Hose; 10. Control device; 11. Temperature detection device; 12. Pressure detection device; 13. Compressor; 14. Filter; 15. Cooling device; 16. Flow meter; 17. Hydrogen concentration sensor; 18. Flame probe; 19. Gas source; 20. Third control valve; 21. Pressure relief pipeline; 22. Bypass pipeline; 23. Second control valve;

[0037] 101. solid hydrogen storage container; 102. electric heating device; 103. solid hydrogen storage material;

[0038] 201, first one-way valve;

[0039] 1501, coolant circulation pump; 1502, hydrogen cooler; 1503, radiator; 1504, cooling fan;

[0040] 2101. Safety valve. 2102. Second one-way valve. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0044] The upstream and downstream mentioned in the present invention, taking A being located upstream of B as an example, means that the fluid first flows through A and then flows through B. Taking A being located downstream of B as an example, means that the fluid first flows through B and then flows through A. A and B refer to components in the present invention.

[0045] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0046] The present embodiment relates to a solid-state hydrogen storage and supply system, which aims to provide a new method of hydrogen filling. By replacing the storage of gaseous hydrogen with solid hydrogen storage materials, the number and volume of equipment required in the hydrogen filling process can be reduced, no large pressure vessels are required, the footprint is small, and the hydrogen filling process is safer.

[0047] Based on the above design concept, an exemplary structure of the solid-state hydrogen storage and supply system of this embodiment is as follows: Figure 1 and Figure 2 As shown, it mainly includes multiple solid-state hydrogen storage and supply devices 1, a main gas supply pipeline 2, multiple branch gas supply pipelines 3, a main hydrogen outlet pipeline 4, multiple branch hydrogen outlet pipelines 5 and a hydrogenation gun 6.

[0048] Among them, multiple solid-state hydrogen storage and hydrogen supply devices 1, multiple branch gas supply pipelines 3 and multiple branch hydrogen outlet pipelines 5 correspond to each other one by one. Each solid-state hydrogen storage and hydrogen supply device 1 is connected to one end of the main gas supply pipeline 2 through the corresponding branch gas supply pipeline 3, and the other end of the main gas supply pipeline 2 is used to connect with the gas source 19 for supplying inert gas. Each solid-state hydrogen storage and hydrogen supply device 1 is connected to one end of the main hydrogen outlet pipeline 4 through the corresponding branch hydrogen outlet pipeline 5, and the other end of the main hydrogen outlet pipeline 4 is connected to the hydrogenation gun 6. Each branch gas supply pipeline 3 is provided with a first control valve 7, and each branch hydrogen outlet pipeline 5 is provided with a second control valve 23.

[0049] The solid-state hydrogen storage and hydrogen supply system of this embodiment controls the first control valve 7 on the branch gas supply pipeline 3 connected to each solid-state hydrogen storage and hydrogen supply device 1 and the second control valve 23 on the branch hydrogen outlet pipeline 5. The inert gas such as nitrogen generated by the external gas source 19 can pass through the main gas supply pipeline 2, the branch gas supply pipeline 3, the solid-state hydrogen storage and hydrogen supply device 1, the branch hydrogen outlet pipeline 5 and the main hydrogen outlet pipeline 4 in sequence, so that the solid-state hydrogen storage and hydrogen supply device 1 and the main hydrogen outlet pipeline 4 can be purged, which is beneficial to ensure the safety of the hydrogenation process. It should be understood that the inert gas can be other gases besides nitrogen, such as helium.

[0050] As a preferred embodiment, the main hydrogen outlet pipeline 4 is connected to the main gas supply pipeline 2 through a bypass pipeline 22, and a third control valve 20 is provided on the bypass pipeline 22. In this arrangement, the control device 10 controls each first control valve 7 and each second control valve 23 to be closed, and the third control valve 20 to be opened, so that the inert gas generated by the gas source 19 does not pass through the solid hydrogen storage and hydrogen supply device 1, but is directly blown out through the main gas supply pipeline 2, the bypass pipeline 22 and the main hydrogen outlet pipeline 4, so that only the main hydrogen outlet pipeline 4 is purged, and the safety of hydrogenation can also be ensured.

[0051] As a preferred embodiment, each solid-state hydrogen storage and hydrogen supply device 1 includes a solid hydrogen storage container 101 and an electric heating device 102. A accommodating cavity is provided in the solid hydrogen storage container 101, and the accommodating cavity is used to accommodate a solid hydrogen storage material 103. An opening for the solid hydrogen storage material 103 to enter and exit is provided on one side of the accommodating cavity. A blocking cover for opening and closing the opening is provided on the solid hydrogen storage container 101.

[0052] The plugging cover is opened to extract the solid hydrogen storage material 103 in the solid hydrogen storage container 101 , and a new solid hydrogen storage material 103 is installed. Then, the plugging cover is used to seal the opening, and the solid hydrogen storage material 103 is replaced.

[0053] For example, in this embodiment, there are three groups of solid-state hydrogen storage and hydrogen supply devices 1. When one group of solid-state hydrogen storage and hydrogen supply devices 1 needs to replace the solid hydrogen storage material 103, the remaining solid-state hydrogen storage and hydrogen supply devices 1 can still achieve normal hydrogen supply, thereby achieving uninterrupted hydrogen supply. It should be understood that it is also feasible to set the number of groups of solid-state hydrogen storage and hydrogen supply devices 1 to other numbers, such as two groups, three groups, four groups, etc.

[0054] In a preferred embodiment, the electric heating device 102 is provided on the solid hydrogen storage container 101, and the electric heating device 102 is used to heat the solid hydrogen storage material 103. The solid hydrogen storage material 103 releases hydrogen when a certain temperature is reached, that is, the solid hydrogen storage material 103 can generate hydrogen when heated, and the electric heating device 102 stops working, and the solid hydrogen storage material 103 no longer generates hydrogen. The accommodating cavity is respectively connected to the corresponding branch gas supply pipeline 3 and the branch hydrogen outlet pipeline 5, so as to facilitate the external gas source 19 to purge and supply hydrogen. In this embodiment, the solid hydrogen storage material 103 can be specifically referred to the prior art.

[0055] As a preferred embodiment, a first one-way valve 201 is provided on the main gas supply pipeline 2. The first one-way valve 201 is used to control the one-way flow of the gas in the main gas supply pipeline 2 toward the solid-state hydrogen storage and hydrogen supply device 1, thereby preventing the gas from flowing toward the gas source 19, thereby facilitating the purging of the solid-state hydrogen storage and hydrogen supply device 1.

[0056] As a preferred embodiment, a breakaway valve 8 is provided at one end of the main hydrogen outlet pipeline 4 connected to the hydrogenation gun 6 , and the hydrogenation gun 6 is connected to the breakaway valve 8 via a hose 9 .

[0057] In specific settings, the solid-state hydrogen storage and supply system can be set as a hydrogen filling pile, which includes a box with a storage space, and the solid-state hydrogen storage and supply device 1, the main gas supply pipeline 2, multiple branch gas supply pipelines 3, the main hydrogen outlet pipeline 4, and multiple branch hydrogen outlet pipelines 5 can all be set in the storage space of the box, and the break valve 8 is installed on the side wall of the box. The hose 9 and the hydrogenation gun 6 are exposed outside the box for hydrogenation. In a preferred embodiment, a hanging part is also provided on the outer wall of the box, and the hydrogenation gun 6 can be hung on the hanging part for easy holding.

[0058] As a preferred embodiment, the solid-state hydrogen storage and supply system further includes a control device 10, which is disposed in the accommodating space of the box body and is electrically connected to each electric heating device 102, each first control valve 7, each second control valve 23, and the third control valve 20, respectively, so that the opening and closing of each electric heating device 102, each first control valve 7, each second control valve, and the third control valve 20 can be controlled by the control device 10. The first control valve 7, each second control valve 23, and the third control valve 20 are preferably existing solenoid valves.

[0059] As a preferred embodiment, a temperature detection device 11 is provided on the main hydrogen outlet pipeline 4, and the temperature detection device 11 is used to detect the temperature of the air flow flowing through the main hydrogen outlet pipeline 4. The temperature detection device 11 is electrically connected to the control device 10, and the temperature detection device 11 can adopt an existing temperature transmitter or temperature sensor, for example. When the hydrogen outlet temperature is high, the control device 10 controls the electric heating device 102 and the corresponding first control valve 7 to close, so as to ensure the safety of hydrogenation.

[0060] As a preferred embodiment, a pressure detection device 12 is provided on the main hydrogen outlet pipeline 4, and the pressure detection device 12 is used to detect the air flow pressure flowing through the main hydrogen outlet pipeline 4. The pressure detection device 12 is electrically connected to the control device 10, and the pressure detection device 12 can be, for example, an existing pressure transmitter or pressure sensor, so as to detect the gas pressure in the main hydrogen outlet pipeline 4, thereby facilitating the control of the hydrogen addition amount.

[0061] As a preferred embodiment, a compressor 13 is provided on the main hydrogen outlet pipeline 4, and the compressor 13 is electrically connected to the control device 10. The compressor 13 is mainly used to increase the pressure of the hydrogen outlet to facilitate the supply of hydrogen to hydrogen-using devices such as vehicle-mounted hydrogen storage bottles.

[0062] As a preferred embodiment, a filter 14 is provided on the main hydrogen outlet pipeline 4. The filter 14 is provided upstream of the compressor 13. The filter 14 is used to filter the airflow flowing to the compressor 13, so as to prevent small particles in the process of hydrogen generation by the solid-state hydrogen storage and hydrogen supply device 1 from entering the hydrogen-using device through the compressor 13, thereby purifying the hydrogen and improving the purity of the hydrogen output, which is conducive to ensuring the safe and reliable operation of the hydrogen-using device.

[0063] As a preferred embodiment, the solid-state hydrogen storage and hydrogen supply system further includes a pressure relief pipeline 21, one end of which is connected to the main hydrogen outlet pipeline 4, and the connecting portion of the pressure relief pipeline 21 and the main hydrogen outlet pipeline 4 is located upstream of the filter 14, and the other end of the pressure relief pipeline 21 is connected to the atmosphere. In this way, when there are too many particles in the filter 14 and the pipeline is blocked, since the solid-state hydrogen storage and hydrogen supply device 1 may still be generating hydrogen, the generated hydrogen can enter the atmosphere through the pressure relief pipeline 21 to prevent danger caused by excessive pressure.

[0064] As a preferred embodiment, a safety valve 2101 and a second one-way valve 2102 are provided on the pressure relief pipeline 21. The safety valve 2101 is provided upstream of the second one-way valve 2102. When there are too many particles in the filter 14 and the pipeline is blocked, the safety valve 2101 can discharge part of the gas, thereby effectively protecting the safety of the solid-state hydrogen storage and hydrogen supply system. The second one-way valve 2102 is used to control the one-way flow of the gas flow in the pressure relief pipeline 21 to the atmosphere, which can prevent the atmosphere from entering the solid-state hydrogen storage and hydrogen supply system through the pressure relief pipeline 21, which is conducive to ensuring the safe and reliable operation of the solid-state hydrogen storage and hydrogen supply system.

[0065] As a preferred embodiment, the solid-state hydrogen storage and supply system further includes a cooling device 15, which is disposed in the accommodating space of the box body, and includes a coolant circulation pipeline, and a coolant circulation pump 1501, a hydrogen cooler 1502, and a radiator 1503 connected by the coolant circulation pipeline. The coolant is preferably cooling water, which has a lower cost.

[0066] The hydrogen cooler 1502 is disposed on the main hydrogen outlet pipeline 4, and the hydrogen cooler 1502 is disposed downstream of the compressor 13. Specifically, the hydrogen cooler 1502 has a first pipeline serially connected to the main hydrogen outlet pipeline 4, and a second pipeline serially connected to the coolant circulation pipeline. The first pipeline and the second pipeline exchange heat to cool the supplied hydrogen, which is beneficial to ensure the safety of hydrogenation.

[0067] In a preferred embodiment, a cooling fan 1504 is provided on one side of the radiator 1503, and the air outlet direction of the cooling fan 1504 is toward the radiator 1503, so as to improve the heat dissipation speed. The coolant circulation pump 1501 and the cooling fan 1504 are electrically connected to the control device 10 respectively, so as to control the power of the coolant circulation pump 1501 and the cooling fan 1504 through the control device 10, thereby adjusting the rate of cooling the hydrogen.

[0068] As a preferred embodiment, a flow meter 16 is provided on the main hydrogen outlet pipeline 4 . The flow meter 16 is provided downstream of the compressor 13 . The flow meter 16 is used to detect the gas flow rate flowing through the main hydrogen outlet pipeline 4 . The flow meter 16 is electrically connected to the control device 10 .

[0069] As a preferred embodiment, the solid-state hydrogen storage and supply system also includes a hydrogen concentration sensor 17, which is arranged in the accommodating space of the box body. The hydrogen concentration sensor 17 is electrically connected to the control device 10. When the hydrogen concentration sensor 17 detects hydrogen leakage, the control device 10 controls the following alarm device to alarm, and the control device 10 controls the electric heating device 102 to stop working, so as to prevent danger.

[0070] As a preferred embodiment, the solid-state hydrogen storage and supply system also includes a flame probe 18, which is arranged in the accommodating space of the box body. The flame probe 18 is electrically connected to the control device 10. When the flame probe 18 detects a flame, the control device 10 controls the following alarm device to alarm, and the control device 10 controls the electric heating device 102 to stop working, so as to prevent the danger from increasing.

[0071] As a preferred embodiment, the solid-state hydrogen storage and supply system further includes a display device, which is arranged on the outer wall of the box body and is electrically connected to the control device 10. The display device can display alarm information, gas temperature, pressure, flow rate, etc. in the main hydrogen pipeline. The display device can also be a touch screen, and when hydrogenation is required, the staff can input the required amount of hydrogenation through the touch screen.

[0072] As a preferred embodiment, the solid-state hydrogen storage and supply system also includes an alarm device, which may be, for example, a speaker or an alarm light. When the gas temperature or pressure in the main hydrogen pipeline is abnormal, or when there is a hydrogen leak or flame, the alarm device will sound an alarm in time to remind the staff in time.

[0073] As a preferred embodiment, a remote communication module is provided on the control device 10, and the remote communication module is connected to the mobile device network. The mobile device can be, for example, a mobile phone. The alarm information of the solid-state hydrogen storage and supply system, the information reminding the replacement of the solid hydrogen storage material 103, etc. can be remotely transmitted to the mobile device, so that the staff can understand the working status of the solid-state hydrogen storage and supply system in a timely manner.

[0074] In the solid-state hydrogen storage system of this embodiment, during initial installation, the control device 10 controls all the first control valves 7, the second control valves 23 and the third control valves 20 in the hydrogenation pile system to be closed, and the compressor 13, the cooling fan 1504 and the coolant circulation pump 1501 are all in a closed state. At this time, the solid hydrogen storage material 103 is manually installed into the solid hydrogen storage container 101, and the plugging cover of the solid hydrogen storage container 101 is manually sealed to seal the opening of the receiving cavity of the solid hydrogen storage container 101, and the installation of the solid hydrogen storage material 103 is completed.

[0075] After the solid hydrogen storage material 103 is installed, the control device 10 controls the inert gas to enter the main gas supply pipeline 2, and the inert gas flows through the first one-way valve 201. The control device 10 controls the first control valve 7 on the branch gas supply pipeline 3 connected to the top solid hydrogen storage hydrogen supply device 1 and the second control valve 23 on the branch hydrogen outlet pipeline 5 to open, and the other first control valves 7, second control valves 23 and third control valves 20 are closed. Preferably, the external gas source 19 is electrically connected to the control device 10. When the gas source 19 is turned on, the inert gas can be purged from the top solid hydrogen storage container 101 and the main hydrogen outlet pipeline 4 to prevent residual air in the solid hydrogen storage container 101 and the main hydrogen outlet pipeline 4, which is conducive to improving the safety of hydrogenation.

[0076] The control device 10 controls the first control valve 7 on the branch gas supply pipeline 3 connected to the middle solid hydrogen storage and hydrogen supply device 1 and the second control valve 23 on the branch hydrogen outlet pipeline 5 to open, and the other first control valves 7, second control valves 23 and third control valves 20 are closed, so that the inert gas can be purged from the middle solid hydrogen storage container 101 and the main hydrogen outlet pipeline 4.

[0077] The first control valve 7 on the branch gas supply pipeline 3 and the second control valve 23 on the branch hydrogen outlet pipeline 5 connected to the solid hydrogen storage and hydrogen supply device 1 below are controlled to be opened, and the other first control valves 7, second control valves 23 and third control valves 20 are closed, so that the inert gas can be purged from the solid hydrogen storage container 101 below and the main hydrogen outlet pipeline 4.

[0078] After the inert gas replacement is completed, hydrogen replacement is carried out. The control device 10 controls the second control valve 23 on the branch hydrogen outlet pipeline 5 connected to the top solid-state hydrogen storage and hydrogen supply device 1 and the electric heating device 102 of the solid hydrogen storage container 101 to open, and the remaining first control valve 7, second control valve 23 and third control valve 20 are closed to purge hydrogen from the solid hydrogen storage container 101 and the main hydrogen outlet pipeline 4.

[0079] The control device 10 controls the second control valve 23 on the branch hydrogen outlet pipeline 5 connected to the middle solid-state hydrogen storage and hydrogen supply device 1 and the electric heating device 102 of the solid hydrogen storage container 101 to open, and the remaining first control valve 7, second control valve 23 and third control valve 20 are closed to purge hydrogen from the solid hydrogen storage container 101 and the main hydrogen outlet pipeline 4.

[0080] The control device 10 controls the second control valve 23 on the branch hydrogen outlet pipeline 5 connected to the bottom solid-state hydrogen storage and hydrogen supply device 1 and the electric heating device 102 of the solid hydrogen storage container 101 to open, and the remaining first control valve 7, second control valve 23 and third control valve 20 are closed to purge hydrogen from the solid hydrogen storage container 101 and the main hydrogen outlet pipeline 4.

[0081] After the hydrogen replacement process is completed, the solid-state hydrogen storage and filling system can fill the on-board hydrogen storage bottle with hydrogen.

[0082] When hydrogen is specifically charged, when the vehicle enters the vicinity of the solid-state hydrogen storage charging system, the hydrogenation gun 6 is connected to the hydrogen receiving port of the on-board hydrogen storage bottle, and after confirming that the connection is safe, the control device 10 starts to charge hydrogen. The control device 10 controls the electric heating device 102 of the solid hydrogen storage container 101 to start, and the solid hydrogen storage material 103 heats up to release hydrogen (when the hydrogen of a solid hydrogen storage material 103 is exhausted, if the on-board hydrogen storage bottle does not reach the set pressure, the electric heating device 102 of the next solid hydrogen storage container 101 starts to work), the solid hydrogen storage material 103 releases hydrogen into the main hydrogen outlet pipeline 4, and the hydrogen flows through the filter 14, the compressor 13, the hydrogen cooler 1502, the flowmeter 16, the break valve 8, the hose 9 in sequence, and then enters the on-board hydrogen storage bottle through the hydrogenation gun 6, thereby realizing the hydrogen filling process of the vehicle.

[0083] Since the solid hydrogen storage container 101 is heated by the electric heating device 102 to generate hydrogen, the temperature of the generated hydrogen is relatively high, and the temperature continues to rise after passing through the compressor 13. Therefore, the hydrogen can be cooled by the hydrogen cooler 1502. The cooled hydrogen flows through the temperature detection device 11, and the temperature signal is converted into an electrical signal and transmitted to the control device 10. The control device 10 changes the power of the coolant circulation pump 1501 and the power of the cooling fan 1504 based on the feedback of the temperature signal, so that the temperature at the outlet of the hydrogen cooler 1502 reaches the set requirement, and the hydrogen filling process of the vehicle is completed, which is conducive to ensuring the safety of hydrogenation.

[0084] After the hydrogen filling is completed, the control device 10 automatically controls the second control valve 23 of the corresponding pipeline to close. At the same time, the control device 10 charges the hydrogen filling customer online according to the electrical signal fed back by the flow meter 16.

[0085] It should be noted here that if the temperature of the hydrogen cannot be lowered to the set temperature, the control device 10 controls the alarm device to alarm and stop the hydrogen filling process. The hydrogen filling gun 6 connected to the hydrogen filling vehicle can be unplugged and the vehicle can be driven away.

[0086] Next, the process of replacing the solid hydrogen storage material 103 is described. When all the hydrogen in the solid hydrogen storage container 101 is released or the remaining hydrogen is insufficient to charge the next vehicle, the control device 10 displays the insufficient remaining hydrogen on the display device and remotely notifies the service personnel to replace the solid hydrogen storage material 103.

[0087] When the solid hydrogen storage material 103 needs to be replaced, the control device 10 purges the inert gas through the solid hydrogen storage container 101 of the material to be replaced. The purge process is the same as the inert gas replacement process during the initial installation. When the hydrogen content in the solid hydrogen storage container 101 drops to the set value, the control device 10 notifies the service personnel to replace the solid hydrogen storage material 103.

[0088] It should be noted that after the solid hydrogen storage material 103 is replaced, the solid hydrogen storage container 101 needs to be sealed, and the control device 10 controls the process of inert gas replacement and hydrogen replacement. This process is exactly the same as the nitrogen replacement and hydrogen replacement process during the initial installation. When the replacement reaches the set value, for example, when the set time is reached, the replacement process is ended, and the overall replacement of the hydrogen storage material process is completed.

[0089] The solid-state hydrogen storage and supply system of this embodiment can make the external gas source 19 clean the solid-state hydrogen storage and supply device 1 and the main hydrogen outlet pipeline 4 at the same time, so the hydrogenation safety is relatively high, and multiple solid-state hydrogen storage and supply devices 1 can realize uninterrupted hydrogen supply, which is more convenient to use. The solid-state hydrogen storage and supply system can be prepared into a smaller volume of hydrogen filling pile setting with high integration. Compared with traditional hydrogen filling stations, it occupies a small area and saves space. It does not require a large pressure vessel and can be operated by one person. It does not require professional personnel to perform filling operations. Only specific personnel are required to replace the solid hydrogen storage material 103. The operation is simple, which can reduce labor costs and save manpower and material resources.

[0090] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid-state hydrogen storage and supply system, characterized in that: It comprises a plurality of solid-state hydrogen storage and supply devices (1), a main gas supply pipeline (2), a plurality of branch gas supply pipelines (3), a main hydrogen outlet pipeline (4), a plurality of branch hydrogen outlet pipelines (5) and a hydrogenation gun (6); The plurality of solid-state hydrogen storage and supply devices (1), the plurality of branch gas supply pipelines (3) and the plurality of branch hydrogen outlet pipelines (5) correspond to each other one by one; Each of the solid-state hydrogen storage and supply devices (1) is connected to one end of the main gas supply pipeline (2) through the corresponding branch gas supply pipeline (3), and the other end of the main gas supply pipeline (2) is used to be connected to a gas source (19) for supplying inert gas; Each of the solid-state hydrogen storage and supply devices (1) is connected to one end of the main hydrogen outlet pipeline (4) through the corresponding branch hydrogen outlet pipeline (5), and the other end of the main hydrogen outlet pipeline (4) is connected to the hydrogenation gun (6); Each of the branch gas supply pipelines (3) is provided with a first control valve (7), and each of the branch hydrogen outlet pipelines (5) is provided with a second control valve (23).

2. The solid-state hydrogen storage and supply system according to claim 1, characterized in that: The main hydrogen outlet pipeline (4) is connected to the main gas supply pipeline (2) via a bypass pipeline (22), and a third control valve (20) is provided on the bypass pipeline (22).

3. The solid-state hydrogen storage and supply system according to claim 2 is characterized in that: Each of the solid-state hydrogen storage and supply devices (1) comprises a solid hydrogen storage container (101) and an electric heating device (102); The solid hydrogen storage container (101) is provided with a receiving cavity, the receiving cavity is used to receive the solid hydrogen storage material (103), one side of the receiving cavity is provided with an opening for the solid hydrogen storage material (103) to enter and exit, and the solid hydrogen storage container (101) is provided with a blocking cover for opening and closing the opening; The electric heating device (102) is arranged on the solid hydrogen storage container (101), and the electric heating device (102) is used to heat the solid hydrogen storage material (103); The accommodating chamber is respectively connected to the corresponding branch gas supply pipeline (3) and the branch hydrogen output pipeline (5).

4. The solid-state hydrogen storage and supply system according to claim 3 is characterized in that: The main gas supply pipeline (2) is provided with a first one-way valve (201), and the first one-way valve (201) is used to control the one-way flow of the gas in the main gas supply pipeline (2) to the solid-state hydrogen storage and hydrogen supply device (1); and / or, One end of the main hydrogen outlet pipeline (4) connected to the hydrogenation gun (6) is provided with a breakaway valve (8), and the hydrogenation gun (6) is connected to the breakaway valve (8) via a hose (9).

5. The solid-state hydrogen storage and supply system according to claim 3 or 4, characterized in that: It also includes a control device (10), wherein the control device (10) is electrically connected to each of the electric heating devices (102), each of the first control valves (7), each of the second control valves (23), and the third control valve (20), respectively, and each of the first control valves (7), each of the second control valves (23), and the third control valve (20) is a solenoid valve.

6. The solid-state hydrogen storage and supply system according to claim 5, characterized in that: The main hydrogen outlet pipeline (4) is provided with a temperature detection device (11), the temperature detection device (11) is used to detect the temperature of the airflow flowing through the main hydrogen outlet pipeline (4), and the temperature detection device (11) is electrically connected to the control device (10); and / or, The main hydrogen outlet pipeline (4) is provided with a pressure detection device (12), the pressure detection device (12) is used to detect the pressure of the air flow flowing through the main hydrogen outlet pipeline (4), and the pressure detection device (12) is electrically connected to the control device (10).

7. The solid-state hydrogen storage and supply system according to claim 5, characterized in that: The main hydrogen outlet pipeline (4) is provided with a compressor (13), and the compressor (13) is electrically connected to the control device (10).

8. The solid-state hydrogen storage and supply system according to claim 7, characterized in that: The main hydrogen outlet pipeline (4) is provided with a filter (14), the filter (14) is arranged upstream of the compressor (13), and the filter (14) is used to filter the airflow flowing to the compressor (13); The solid-state hydrogen storage and supply system further comprises a pressure relief pipeline (21), one end of the pressure relief pipeline (21) is connected to the main hydrogen outlet pipeline (4), the connecting portion between the pressure relief pipeline (21) and the main hydrogen outlet pipeline (4) is located upstream of the filter (14), and the other end of the pressure relief pipeline (21) is connected to the atmosphere; The pressure relief pipeline (21) is provided with a safety valve (2101) and a second one-way valve (2102); the safety valve (2101) is arranged upstream of the second one-way valve (2102); the second one-way valve (2102) is used to control the one-way flow of the airflow in the pressure relief pipeline (21) toward the atmosphere.

9. The solid-state hydrogen storage and supply system according to claim 7, characterized in that: The solid-state hydrogen storage and supply system further comprises a cooling device (15), wherein the cooling device (15) comprises a coolant circulation pipeline, and a coolant circulation pump (1501), a hydrogen cooler (1502), and a radiator (1503) connected through the coolant circulation pipeline; The hydrogen cooler (1502) is arranged on the main hydrogen outlet pipeline (4), and the hydrogen cooler (1502) is arranged downstream of the compressor (13); a cooling fan (1504) is arranged on one side of the radiator (1503); The coolant circulation pump (1501) and the cooling fan (1504) are electrically connected to the control device (10) respectively.

10. The solid-state hydrogen storage and supply system according to claim 7, characterized in that: The main hydrogen outlet pipeline (4) is provided with a flow meter (16), and the flow meter (16) is arranged downstream of the compressor (13); The flow meter (16) is used to detect the gas flow rate flowing through the main hydrogen outlet pipeline (4), and the flow meter (16) is electrically connected to the control device (10).

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