Performance test platform for high-density solid hydrogen storage device

Abstract

The invention relates to a high-density solid hydrogen storage device performance test platform which comprises a hydrogen source device and a hydrogen storage device, a gas inlet pressure sensor is arranged between the hydrogen source device and the hydrogen storage device, a first electric control valve is arranged between the gas inlet pressure sensor and the hydrogen source device, and a second electric control valve is arranged between the gas inlet pressure sensor and the hydrogen storage device. An electric control pressure relief device is arranged between the first electric control valve and the second electric control valve; a vacuumizing device and a gas flow controller are arranged between the hydrogen storage device and the second electric control valve, before hydrogenation of the hydrogen storage device, if the gas inlet pressure sensor detects that the pressure in the pipeline exceeds the standard, the electric control pressure relief device is controlled to discharge excess gas, the vacuumizing device vacuumizes the hydrogen storage device, and the gas flow controller is controlled to discharge the excess gas. And the first electric control valve and the second electric control valve are both opened, and hydrotreatment of the hydrogen storage device is carried out. The performance test platform for the high-density solid hydrogen storage device realizes large-scale application of medium-capacity and high-capacity solid hydrogen storage, tests the hydrogen absorption and desorption amount of the device, and monitors flow data and the total hydrogen absorption and desorption amount.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage systems, and in particular to a performance testing platform for a high-density solid-state hydrogen storage device. Background Art

[0002] Hydrogen energy, as a clean and efficient new energy source, is receiving attention from all over the world. Its uses cover all energy fields. Among them, solid-state hydrogen storage can solve the two difficult problems of high-density storage and safe application of hydrogen. Solid-state hydrogen storage refers to the use of materials to store hydrogen in solid materials through physical adsorption and chemical adsorption. It has the advantages of low storage pressure, good safety, high volume hydrogen storage density, and high hydrogen supply purity. Hydrogen storage materials will release or absorb a large amount of heat during the process of hydrogen absorption and desorption. If the heat cannot be removed / replenished in time, it will lead to a decline in hydrogen storage performance, such as reduced hydrogen storage capacity and slower hydrogen storage and supply rates. Therefore, the large-scale application of solid-state hydrogen storage is the main research and development direction. Therefore, a solid-state hydrogen storage system is needed that can realize the large-scale application of medium and large-capacity solid-state hydrogen storage and monitor flow data at the same time. Summary of the Invention

[0003] The embodiments of the present invention provide a high-density solid-state hydrogen storage device performance testing platform to solve the problems in the prior art.

[0004] In order to achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0005] A high-density solid-state hydrogen storage device performance testing platform, comprising:

[0006] A hydrogen source device, used for supplying hydrogen gas and capable of adjusting the gas supply pressure;

[0007] A hydrogen storage device, wherein a hydrogen storage medium for storing hydrogen is provided;

[0008] An air pressure regulating device, connected to the hydrogen source device and the hydrogen storage device, respectively, for regulating the internal air pressure of the hydrogen storage device;

[0009] A vacuum pumping device connected to the hydrogen storage device for vacuuming the hydrogen storage device;

[0010] Hot water device, used to provide hot circulating water;

[0011] Chilled water device, used to provide cold circulating water;

[0012] The circulating water circuit is connected to the hot water device and the cold water device respectively, which can open and close the cold water circulation and the hot water circulation, and measure the water temperature and water flow, which are used to heat the hot water or cool the cold water for the hydrogen storage device.

[0013] Furthermore, the hydrogen source device includes an external gas source assembly grid, and the external gas source assembly grid is connected to a hydrogen source electronic pressure controller and a hydrogen source pneumatic valve in sequence.

[0014] Furthermore, the air pressure regulating device includes an inlet air pressure sensor, a pressure relief sub-device, an air pressure regulating sub-device and a hydrogen storage device air pressure sensor. One end of the air pressure regulating sub-device is connected to the inlet air pressure sensor and the pressure relief sub-device in sequence, and the other end of the air pressure regulating sub-device is connected to the hydrogen storage device air pressure sensor and the hydrogen storage device in sequence; the air pressure regulating sub-device is arranged in parallel with multiple air paths, one of which is provided with a first pneumatic valve, another is provided with a flow controller and a second pneumatic valve, and the third is provided with an electronic pressure controller and a third pneumatic valve.

[0015] Furthermore, the pressure relief sub-device includes a pressure relief pneumatic valve, which is sequentially connected to the flame arrester and the vent.

[0016] Furthermore, the vacuum pumping device includes a vacuum pumping electric control valve and a vacuum pump, and the vacuum pumping electric control valve is used to control the on-off between the vacuum pump and the hydrogen storage device.

[0017] Furthermore, the hot water circulation device includes a hot water tank, a hot water pump group, a hot water outlet pneumatic valve and a hot water return pneumatic valve. One end of the hot water pump group is connected to the hot water tank, the other end of the hot water pump group is connected to the hot water outlet pneumatic valve, and the hot water tank is connected to the hot water return pneumatic valve.

[0018] Furthermore, the cold water circulation device includes a cold water tank, a cold water pump group, a cold water outlet pneumatic valve and a cold water return pneumatic valve. One end of the cold water pump group is connected to the cold water tank, the other end of the cold water pump group is connected to the cold water outlet pneumatic valve, and the cold water tank is connected to the cold water return pneumatic valve.

[0019] Furthermore, the circulating water circuit includes a main water circuit respectively connected to the hot water device and the cold water device, and the main water circuit is provided with a water pressure sensor, a water temperature sensor, and a water flow meter.

[0020] Furthermore, it also includes a thermal oil circulation device, which includes a thermal oil storage tank, a thermal oil pump group, a thermal oil pneumatic valve, a thermal oil pressure sensor, a thermal oil temperature sensor, and a thermal oil flow meter. The thermal oil pump group is respectively connected to the thermal oil storage tank and the thermal oil pneumatic valve, and the liquid outlet side of the thermal oil pneumatic valve is provided with a thermal oil pressure sensor, a thermal oil temperature sensor, and a thermal oil flow meter. The pipeline of the thermal oil device passes through the high-temperature hydrogen storage device and then flows back to the thermal oil storage tank.

[0021] The embodiments of the present invention have the following advantages:

[0022] The high-density solid-state hydrogen storage device performance testing platform of the present invention enables the large-scale application of medium- and large-capacity solid-state hydrogen storage, meeting the needs of solid-state hydrogen storage device performance testing and device system activation, filling a gap in this field. It can test the device's hydrogen absorption and release capacity, monitor flow data, and test the total hydrogen absorption and release capacity. Furthermore, multiple hydrogen storage stations can be set up, enabling hydrogen charging and discharge between different stations. After completing external hydrogen charging at one station, subsequent operations do not require an external gas supply, saving costs.

[0023] The high-density solid-state hydrogen storage device performance testing platform of the present invention provides different pressure and temperature environments for the hydrogen storage device, completes the testing requirements under different conditions, can activate different test modes with one click, automatically completes the test, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0025] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0026] Figure 1 This is a system schematic diagram of a high-density solid-state hydrogen storage device performance testing platform provided by an embodiment of the present invention.

[0027] In the picture:

[0028] 1. External gas source container; 2. Hydrogen source electronic pressure controller; 3. Hydrogen source pneumatic valve; 4. Inlet gas pressure sensor; 5. Pressure relief pneumatic valve;

[0029] 6. First pneumatic valve; 7. Flow controller; 8. Second pneumatic valve; 9. Electronic pressure controller; 10. Third pneumatic valve;

[0030] 11. Vacuum electric control valve; 12. Vacuum pump;

[0031] 13. Hydrogen storage device; 14. High-temperature hydrogen storage device; 15. Hydrogen storage device pressure sensor; 16. Hydrogen storage device temperature sensor;

[0032] 17. Hot water tank; 18. Hot water pump unit; 19. Hot water outlet pneumatic valve; 20. Hot water return pneumatic valve;

[0033] 21. Cold water tank; 22. Cold water pump unit; 23. Cold water outlet pneumatic valve; 24. Cold water return pneumatic valve;

[0034] 25. Main water channel; 26. Water pressure sensor; 27. Water temperature sensor; 28. Water flow meter;

[0035] 29. Thermal oil storage tank; 30. Thermal oil pump unit; 31. Thermal oil pneumatic valve; 32. Thermal oil pressure sensor; 33. Thermal oil temperature sensor; 34. Thermal oil flow meter. DETAILED DESCRIPTION

[0036] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0037] like Figure 1 As shown, a high-density solid-state hydrogen storage device 13 performance testing platform includes:

[0038] A hydrogen source device is used to supply hydrogen gas and has adjustable supply pressure. The hydrogen source device includes an external gas source container 1, which is sequentially connected to a hydrogen source electronic pressure controller 2 and a hydrogen source pneumatic valve 3. The electronic pressure controller 9 is used to adjust the supply pressure of the external gas source container 1, thereby adjusting the supply flow rate. The hydrogen source pneumatic valve 3 is used to open or close the gas supply to the external gas source container 1.

[0039] The hydrogen storage device 13 contains a hydrogen storage medium for storing hydrogen. In this technology, the primary materials used in the hydrogen storage device 13 are metal hydrides, such as AB2-type titanium-based hydrogen storage alloys, AB-type hydrogen storage alloys, AB5-type hydrogen storage alloys, metal nitrides, and magnesium-based hydrogen storage alloys. In this technology, each hydrogen storage device 13 and high-temperature hydrogen storage device 14 is equipped with a hydrogen storage device pressure sensor 15 and a hydrogen storage device temperature sensor 16 to monitor the hydrogen storage device 13's pressure and temperature in real time.

[0040] The air pressure regulating device is connected to the hydrogen source device and the hydrogen storage device 13, respectively, and is used to regulate the internal air pressure of the hydrogen storage device 13. The air pressure regulating device includes an inlet air pressure sensor 4, a pressure relief sub-device, an air pressure regulating sub-device, and a hydrogen storage device air pressure sensor 15. The inlet air pressure sensor 4 is connected to the hydrogen source device and is used to detect the gas supply pressure of the hydrogen source device.

[0041] One end of the air pressure regulating sub-device is connected in sequence to the inlet air pressure sensor 4 and the pressure relief sub-device, and the pressure relief sub-device includes a pressure relief pneumatic valve 5, which is connected in sequence to the flame arrester and the vent. The pressure relief pneumatic valve 5 can also be connected in parallel with the pressure relief valve to actively regulate excess pressure. The other end of the air pressure regulating sub-device is connected in sequence to the hydrogen storage device air pressure sensor 15 and the hydrogen storage device 13. The hydrogen storage device air pressure sensor 15 is used to detect the air pressure of the hydrogen storage device 13. If there are multiple hydrogen storage devices 13, the air outlet side of the air pressure regulating sub-device is divided into multiple branches, each branch is connected to a hydrogen storage device 13, so that one air pressure regulating sub-device can regulate the air pressure of multiple hydrogen storage devices 13.

[0042] The air pressure regulating sub-device is arranged in parallel with multiple air paths, one of which is provided with a first pneumatic valve 6, which can turn the air pressure regulating sub-device on and off; another is provided with a flow controller 7 and a second pneumatic valve 8, and the flow controller 7 is used to regulate the gas flow in the path; the third is provided with an electronic pressure controller 9 and a third pneumatic valve 10, which are used to regulate the air pressure in the pipeline.

[0043] A vacuum pumping device is connected to the hydrogen storage device 13 and is used to vacuum the hydrogen storage device 13. The vacuum pumping device includes a vacuum electric control valve 11 and a vacuum pump 12. The vacuum electric control valve 11 is used to control the connection between the vacuum pump 12 and the hydrogen storage device 13. The gas outlet of the vacuum pump 12 is equipped with a flame arrester and a vent. The vacuum pump 12 is equipped with a hydrogen storage device pressure sensor 15 for detecting the air pressure in the hydrogen storage device 13 to determine the vacuum status.

[0044] A hot water device is used to provide hot circulating water; the hot water circulation device includes a hot water tank 17, a hot water pump group 18, a hot water outlet pneumatic valve 19 and a hot water return pneumatic valve 20. One end of the hot water pump group 18 is connected to the hot water tank 17, and the other end of the hot water pump group 18 is connected to the hot water outlet pneumatic valve 19, and the hot water tank 17 is connected to the hot water return pneumatic valve 20.

[0045] A cold water device is used to provide cold circulating water; the cold water circulation device includes a cold water tank 21, a cold water pump group 22, a cold water outlet pneumatic valve 23 and a cold water return pneumatic valve 24, one end of the cold water pump group 22 is connected to the cold water tank 21, the other end of the cold water pump group 22 is connected to the cold water outlet pneumatic valve 23, and the cold water tank 21 is connected to the cold water return pneumatic valve 24.

[0046] The circulating water circuit connects the hot water unit and the cold water unit, enabling and disabling cold water circulation and hot water circulation. It also measures water temperature and flow rate, used to heat the hot water or cool the cold water for the hydrogen storage unit 13. The circulating water circuit includes a main water circuit 25 connecting the hot water unit and the cold water unit, respectively. This main water circuit 25 is equipped with a water pressure sensor 26, a water temperature sensor 27, and a water flow meter 28. If there are multiple hydrogen storage units 13, the circulating water circuits are connected in parallel, with the number of circulating water circuits corresponding to the number of hydrogen storage units 13. Each of these parallel circulating water circuits connects the hot water unit and the cold water unit.

[0047] A high-density solid-state hydrogen storage device 13 performance test platform also includes a thermal oil circulation device for high-temperature treatment of a high-temperature hydrogen storage device 14, such as a magnesium-based (high-temperature material) hydrogen storage device 13, with a hydrogen absorption and desorption temperature between 150 and 350°C. The thermal oil device includes a thermal oil storage tank 29, a thermal oil pump group 30, a thermal oil pneumatic valve 31, a thermal oil pressure sensor 32, a thermal oil temperature sensor 33, and a thermal oil flow meter 34. The thermal oil pump group 30 is respectively connected to the thermal oil storage tank 29 and the thermal oil pneumatic valve 31. The liquid outlet side of the thermal oil pneumatic valve 31 is provided with a thermal oil pressure sensor 32, a thermal oil temperature sensor 33, and a thermal oil flow meter 34. The pipeline of the thermal oil device passes through the high-temperature hydrogen storage device 14 and then flows back to the thermal oil storage tank 29.

[0048] A high-density solid-state hydrogen storage device 13 performance test platform of this embodiment can realize the following functions:

[0049] 1. Activation of the hydrogen storage device 13; 2. Hydrogenation test of the hydrogen storage device 13; 3. Hydrogen desorption test of the hydrogen storage device 13; 4. Hydrogen absorption and desorption test of the high-temperature hydrogen storage device 14.

[0050] Before testing, the equipment is prepared: the external gas source container 1 is connected to the platform, and the hydrogen source pneumatic valve 3 is opened; then the system is powered on and started; then the hot water device, cold water device, and thermal oil circulation device are turned on, and the hot water storage tank, cold water storage tank and thermal oil storage tank 29 reach the preset temperature; finally, the hydrogen storage device 13 to be tested (the number of hydrogen storage devices 13 to be connected depends on actual needs) is connected to the platform, and the air pressure regulating device and the circulating water circuit are connected.

[0051] Function 1: After the equipment is prepared, the solid-state hydrogen storage device 13 is activated.

[0052] If a pneumatic valve is provided between the hydrogen storage device 13 and the air pressure regulating device, that is, a pneumatic valve of the hydrogen storage device 13 itself, the pneumatic valve will automatically open to ensure that the air path between the two is unobstructed.

[0053] The hydrogen storage device's air pressure sensor 15 measures the current pressure in the hydrogen storage device 13. If the current pressure is greater than 0.15 MPa, 9, the first pneumatic valve 6 automatically opens, and the pressure relief pneumatic valve 5 opens to relieve the pressure in the hydrogen storage device 13. When the value detected by the hydrogen storage device 13's pressure sensor is less than 0.15 MPa, 37, meaning the pressure in the hydrogen storage device 13 approaches the ambient pressure of 0.1 MPa, venting stops, and the pressure relief pneumatic valve 5, the first pneumatic valve 6, and the pneumatic valve in the hydrogen storage device 13 itself close. If a pneumatic valve is installed between the hydrogen storage device 13 and the air pressure regulating device, i.e., the pneumatic valve in the hydrogen storage device 13 itself, the pneumatic valve automatically opens to ensure an unobstructed air path between the two.

[0054] The hot water device is turned on, the hot water outlet pneumatic valve 19, the return hot water pneumatic valve 20, and the hot water pump group 18 are turned on, the water pressure sensor 26 detects the hot water pressure entering the hydrogen storage device 13, the water temperature sensor 27 detects the inlet temperature and outlet temperature, and the water flow meter 28 detects the water flow value. The upper computer can set the current hot water flow rate and calculate the energy consumption required for the current activation of the hydrogen storage device 13 based on the current inlet and outlet temperature difference and the total amount of water passed during the activation time.

[0055] After the set activation time is over, the pressure value of the hydrogen storage device pressure sensor 15 should be maintained below 10Pa. After the system determines that the activation is completed, all valves are automatically closed and the hydrogenation test can be started.

[0056] Function 2: hydrogen storage device 13 hydrogenation test.

[0057] Turn off the hot water device and start the cold water device. Specifically, first close the hot water outlet pneumatic valve 19, open the return hot water pneumatic valve 20, open the cold water outlet pneumatic valve 23, and return the hot water in the circulating water circuit to the hot water storage tank. When the temperature detected by the water temperature sensor 27 drops significantly, it means that the hot water in the hydrogen storage device 13 has become cold water. Then close the return hot water pneumatic valve 20, open the return cold water pneumatic valve 24, and return the cold water in the circulating water circuit to the cold water storage tank, realizing the replacement of hot and cold water in the hydrogen storage device 13.

[0058] The hydrogen source electronic pressure controller 2 is turned on, the hydrogen source pneumatic valve 3 is opened, the intake pressure is automatically set, the second pneumatic valve 8 is opened, the flow controller 7 intakes air at a preset flow rate, the pneumatic valve of the hydrogen storage device 13 itself is opened, the hydrogen storage device 13 starts to add hydrogen, and the system starts to record the inlet and outlet water temperature and flow rate of the hydrogen storage device 13, as well as the hydrogenation flow rate.

[0059] During the hydrogenation process, the hydrogen storage device pressure sensor 15 detects the pressure change of the hydrogen storage device 13, and the pressure value will continue to increase. Based on the pressure difference between the inlet gas pressure sensor 4 and the hydrogen storage device pressure sensor 15, the system automatically determines whether the flow controller 7 meets the working state. When the pressure difference is too small, the flow of the flow controller 7 will decrease. At the same time, the system automatically adjusts the hydrogen source electronic pressure controller 2 to increase the gas supply pressure and increase the working pressure difference. The flow controller 7 continues to meet the required working pressure difference and maintains the hydrogen filling flow until the pressure value of the hydrogen storage device pressure sensor 15 reaches the preset pressure and the flow value of the flow controller 7 decreases. At this time, the hydrogenation of the hydrogen storage device 13 is completed. During this process, the system records the cumulative flow of the flow controller 7. The cumulative flow is the total amount of hydrogenation of the hydrogen storage device 13. Based on the inlet and outlet temperature difference of the hydrogen storage device 13 and the total amount of water passed during the activation time, the energy consumption required for the current hydrogenation of the hydrogen storage device 13 is calculated.

[0060] After the hydrogenation test is completed, the cold water device and each pneumatic valve are automatically closed, and the first pneumatic valve 6 and the pressure relief pneumatic valve 5 are opened to discharge the residual hydrogen in the pipeline. At this time, the hydrogen discharge test can be started.

[0061] Function 3: hydrogen storage device 13 hydrogen release test.

[0062] In one way, the discharged hydrogen can be directly discharged into the air.

[0063] Another method is unique to this technology, that is, multiple parallel hydrogen storage devices 13 are provided, including a hydrogenated hydrogen storage device 13 and an empty hydrogen storage device 13, and hydrogen is introduced from the hydrogenated hydrogen storage device 13 into another set or two sets of empty hydrogen storage devices 13. There is no need to refill hydrogen externally, and multiple hydrogen storage devices 13 can be tested, thereby greatly saving costs.

[0064] The specific steps are: according to the above method, the hot water device of the hydrogen storage device 13 after hydrogenation is turned on and the relevant hot water parameters are recorded, and the cold water device of the empty hydrogen storage device 13 is turned on and the relevant cold water parameters are recorded, so as to increase the temperature in the hydrogen storage device 13 after hydrogenation and reduce the temperature in the empty hydrogen storage device 13.

[0065] The third pneumatic valve 10 opens, the electronic pressure controller 9 is activated, and the electronic pressure control automatically adjusts the outlet pressure. The second pneumatic valve 8 opens, the flow controller 7 opens, and the inlet pneumatic valve of the empty hydrogen storage device 13 opens. At this time, the hydrogen in the hydrogen storage device 13 after hydrogenation is introduced into the empty hydrogen storage device 13 at the set pressure and flow rate. During this process, if the pressure differential between the hydrogen source electronic pressure controller 2 and the hydrogen storage device pressure sensor 15 is greater than 0.2-0.5 MPa, the system automatically adjusts the output pressure of the hydrogen source electronic pressure controller 2 to stabilize the operating pressure differential of the flow controller 7, ensuring stable hydrogen discharge from the hydrogen storage device 13 after hydrogenation and maintaining stable operation of the flow controller 7.

[0066] When the pressure values ​​detected by the hydrogen storage device air pressure sensor 15 between the hydrogen storage device 13 after hydrogenation and the empty hydrogen storage device 13 are close, the flow value of the flow controller 7 also drops significantly. At this time, the pressure between the empty hydrogen storage device 13 and the hydrogen storage device 13 after hydrogenation is close to equilibrium, and the empty hydrogen storage device 13 has no hydrogen absorption capacity. The various pneumatic valves are closed, and the hydrogen absorption of the empty hydrogen storage device 13 ends. Then the first pneumatic valve 6 and the pressure relief pneumatic valve 5 are opened to empty the small amount of hydrogen in the hydrogen storage device 13 after hydrogenation. When the flow value of the flow controller 7 is close to zero, the hydrogen release test ends. During this process, the system records the accumulated amount of the flow controller 7 as the total amount of hydrogen released by the hydrogen storage device 13; the system calculates the energy consumption required for the current hydrogen release of the hydrogen storage device 13 based on the temperature difference between the inlet and outlet of the hydrogen storage device 13 and the total amount of water passed during the activation time.

[0067] Function 4: High-temperature hydrogen storage device 14 hydrogen absorption and desorption test.

[0068] a. High-temperature hydrogen storage device 14 hydrogenation mode: the external gas source container 1 or the hydrogen storage device 13 after hydrogenation is used as the gas supply device. In the following, the hydrogen storage device 13 after hydrogenation is used as the gas supply device.

[0069] According to the above method, the hot water device of the hydrogen storage device 13 after hydrogenation is turned on and the relevant hot water parameters are recorded.

[0070] The thermal oil circulation device of the high-temperature hydrogen storage device 14 is turned on, that is, the thermal oil pump group 30 and the thermal oil pneumatic valve 31 are turned on, and thermal oil is introduced into the high-temperature hydrogen storage device 14. The thermal oil storage tank 29 is set to the required temperature.

[0071] After hydrogenation, the pneumatic valves at the inlet and outlet of the hydrogen storage device 13 are opened, the electronic pressure controller 9 adjusts the outlet pressure, the third pneumatic valve 10 is opened, the second pneumatic valve 8 is opened, the flow controller 7 automatically adjusts the hydrogen flow rate, the pneumatic valves at the inlet and outlet of the high-temperature hydrogen storage device 14 are opened, hydrogen is passed into the high-temperature hydrogen storage device 14, the thermal oil pressure sensor 32, the thermal oil temperature sensor 33, and the thermal oil flowmeter 34 respectively record the thermal oil pressure, thermal oil temperature, and thermal oil flow rate, and the hydrogenation test of the high-temperature hydrogen storage device 14 begins.

[0072] When the pressure value of the hydrogen storage device pressure sensor 15 reaches the preset hydrogenation pressure of the high-temperature hydrogen storage device 14, the hydrogenation test of this device is completed. The system records the accumulated amount of the flow controller 7 as the total amount of hydrogen released by the hydrogen storage device 13. According to the temperature difference of the thermal oil of the high-temperature hydrogen storage device 14 and the total amount of thermal oil passing through during the activation time, the energy consumption required for the current hydrogenation of the hydrogen storage device 13 is calculated.

[0073] b Hydrogen release test of high-temperature hydrogen storage device 14: The high-temperature hydrogen storage device 14 is released and emptied, or the empty hydrogen storage device 13 is selected as the hydrogen recovery device. In the following, the empty hydrogen storage device 13 is used as the hydrogen recovery device.

[0074] According to the above method, the cooling water device is turned on for the empty hydrogen storage device 13 and the relevant cooling water parameters are recorded, so that the temperature inside the hydrogen storage device 13 increases after hydrogenation, while the temperature inside the empty hydrogen storage device 13 decreases.

[0075] The thermal oil circulation device of the high-temperature hydrogen storage device 14 is turned on, that is, the thermal oil pump group 30 and the thermal oil pneumatic valve 31 are turned on, and thermal oil is introduced into the high-temperature hydrogen storage device 14. The thermal oil storage tank 29 is set to the required temperature.

[0076] The pneumatic valves at the inlet and outlet of the high-temperature hydrogen storage device 14 are opened, the electronic pressure controller 9 automatically adjusts the outlet pressure, the third pneumatic valve 10 is opened, the second pneumatic valve 8 is opened, the flow controller 7 automatically adjusts the hydrogen flow rate, and hydrogen is passed from the high-temperature hydrogen storage device 14 into the empty hydrogen storage device 13. The system records the flow value of the flow controller 7, the temperature sensor parameters, and the flow meter parameters, and starts the hydrogen release test of the high-temperature hydrogen storage device 14.

[0077] When the two pressure values ​​detected by the pressure sensor of the hydrogen storage device 13 between the high-temperature hydrogen storage device 14 and the empty hydrogen storage device 13 are close, the flowmeter of the flow controller 7 also drops significantly. At this time, the two pressures between the empty hydrogen storage device 13 and the high-temperature hydrogen storage device 14 are close to equilibrium, and the device has no hydrogen absorption capacity. The various pneumatic valves are closed, and the empty hydrogen storage device 13 ends hydrogen absorption.

[0078] The first pneumatic valve 6 and the pressure relief pneumatic valve 5 are then opened to discharge the small amount of hydrogen from the hydrogen storage device 13 after refueling. The hydrogen release test ends when the flow rate on the flow controller 7 approaches zero. The accumulated flow rate on the flow controller 7 is recorded as the total amount of hydrogen released from the hydrogen storage device 13. The system calculates the energy consumption required for refueling the hydrogen storage device 13 based on the temperature difference between the inlet and outlet temperatures of the thermal oil in the high-temperature hydrogen storage device 14 and the total amount of thermal oil flowing during the activation period.

[0079] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A high-density solid-state hydrogen storage device performance testing platform, characterized in that: include: A hydrogen source device, used for supplying hydrogen gas and capable of adjusting the gas supply pressure; A hydrogen storage device, wherein a hydrogen storage medium for storing hydrogen is provided; An air pressure regulating device, connected to the hydrogen source device and the hydrogen storage device, respectively, for regulating the internal air pressure of the hydrogen storage device; A vacuum pumping device connected to the hydrogen storage device for vacuuming the hydrogen storage device; Hot water device, used to provide hot circulating water; Chilled water device, used to provide cold circulating water; The circulating water circuit is connected to the hot water device and the cold water device respectively, and can open and close the cold water circulation and the hot water circulation through the hydrogen storage device, and measure the water temperature and water flow rate to heat up the hot water or cool down the cold water for the hydrogen storage device.

2. A high-density solid-state hydrogen storage device performance testing platform according to claim 1, characterized in that: The hydrogen source device includes an external gas source assembly grid, and the external gas source assembly grid is connected to a hydrogen source electronic pressure controller and a hydrogen source pneumatic valve in sequence.

3. A high-density solid-state hydrogen storage device performance testing platform according to claim 1, characterized in that: The air pressure regulating device includes an inlet air pressure sensor, a pressure relief sub-device, an air pressure regulating sub-device and a hydrogen storage device air pressure sensor, one end of the air pressure regulating sub-device is connected to the inlet air pressure sensor and the pressure relief sub-device in sequence, and the other end of the air pressure regulating sub-device is connected to the hydrogen storage device air pressure sensor and the hydrogen storage device in sequence; The air pressure regulating sub-device is a parallel multi-air circuit arrangement, one of which is provided with a first pneumatic valve, another is provided with a flow controller and a second pneumatic valve, and the third is provided with an electronic pressure controller and a third pneumatic valve.

4. A high-density solid-state hydrogen storage device performance testing platform according to claim 3, characterized in that: The pressure relief sub-device includes a pressure relief pneumatic valve, which is sequentially connected to the flame arrester and the vent.

5. A high-density solid-state hydrogen storage device performance testing platform according to claim 1, characterized in that: The vacuum pumping device includes a vacuum pumping electric control valve and a vacuum pump, and the vacuum pumping electric control valve is used to control the connection and disconnection between the vacuum pump and the hydrogen storage device.

6. A high-density solid-state hydrogen storage device performance testing platform according to claim 1, characterized in that: The hot water circulation device includes a hot water tank, a hot water pump group, a hot water outlet pneumatic valve and a hot water return pneumatic valve. One end of the hot water pump group is connected to the hot water tank, the other end of the hot water pump group is connected to the hot water outlet pneumatic valve, and the hot water tank is connected to the hot water return pneumatic valve.

7. A high-density solid-state hydrogen storage device performance testing platform according to claim 1, characterized in that: The cold water circulation device includes a cold water tank, a cold water pump group, a cold water outlet pneumatic valve and a cold water return pneumatic valve. One end of the cold water pump group is connected to the cold water tank, the other end of the cold water pump group is connected to the cold water outlet pneumatic valve, and the cold water tank is connected to the cold water return pneumatic valve.

8. The high-density solid-state hydrogen storage device performance testing platform according to claim 1, characterized in that: The circulating water circuit includes a main water circuit connected to the hot water device and the cold water device respectively, and a water pressure sensor, a water temperature sensor, and a water flow meter are provided on the main water circuit.

9. A high-density solid-state hydrogen storage device performance testing platform according to claim 1, characterized in that: It also includes a thermal oil circulation device, which includes a thermal oil storage tank, a thermal oil pump group, a thermal oil pneumatic valve, a thermal oil pressure sensor, a thermal oil temperature sensor, and a thermal oil flow meter. The thermal oil pump group is respectively connected to the thermal oil storage tank and the thermal oil pneumatic valve. The liquid outlet side of the thermal oil pneumatic valve is provided with a thermal oil pressure sensor, a thermal oil temperature sensor, and a thermal oil flow meter. The pipeline of the thermal oil device passes through the high-temperature hydrogen storage device and then flows back to the thermal oil storage tank.

Images