Solid hydrogen storage bottle severe condition testing device and testing method

Abstract

This application provides a testing apparatus and method for testing solid-state hydrogen storage cylinders under harsh operating conditions. The testing apparatus includes an explosion-proof enclosure, a temperature environment simulation system, a monitoring system, a safety assurance system, and an integrated control system. The explosion-proof enclosure includes a housing and inlet / outlet gas pipelines. The temperature environment simulation system includes a constant-temperature medium chamber. The monitoring system includes a hydrogen monitoring probe, a pressure detector, a mass flow meter, and a temperature sensor. The pressure detector and mass flow meter are connected to the inlet / outlet gas pipelines. The safety assurance system includes a ventilation module. The integrated control system has a data transmission interface and is electrically connected to the temperature environment simulation system, the monitoring system, and the safety assurance system for setting test parameters, collecting test data, and controlling the test process. This testing apparatus can comprehensively and accurately simulate the harsh conditions that solid-state hydrogen storage cylinders may encounter in actual use, thereby effectively testing their performance and providing a reliable basis for the quality assessment and safety assurance of solid-state hydrogen storage cylinders.

Description

Technical Field

[0001] This application relates to the field of solid-state hydrogen storage technology, and in particular to a testing device and method for testing solid-state hydrogen storage cylinders under harsh operating conditions. Background Technology

[0002] Hydrogen energy, with its clean, efficient, and sustainable characteristics, is becoming an important component of the future energy system. Solid-state hydrogen storage cylinders utilize the reversible reaction between solid hydrogen storage materials and hydrogen gas to store hydrogen, offering significant advantages such as high hydrogen storage density, low operating pressure, and good safety. They are particularly suitable for hydrogen-powered two-wheeled vehicle scenarios where space is limited and safety requirements are high.

[0003] However, as an emerging technology, solid-state hydrogen storage cylinders face numerous challenges in testing. At the materials level, the hydrogen absorption and desorption performance of solid-state hydrogen storage materials is affected by various factors, and different material systems exhibit significant performance differences, requiring tailored testing solutions. Structurally, solid-state hydrogen storage cylinders integrate hydrogen storage materials, thermal management systems, gas pipelines, and other components within a limited space, making tests on overall sealing and thermal conductivity efficiency challenging. In practical applications, solid-state hydrogen storage cylinders encounter complex conditions such as drastic temperature changes during hydrogen-powered two-wheeled vehicle operation. There are currently no mature testing equipment or methods to simulate these harsh conditions and accurately assess the reliability and safety of hydrogen storage cylinders.

[0004] In view of this, it is necessary to design a testing device and method for the harsh operating conditions of solid hydrogen storage cylinders to solve one of the above problems. Summary of the Invention

[0005] This application provides a testing device and method for testing solid hydrogen storage cylinders under harsh operating conditions. The testing device can effectively evaluate the quality of solid hydrogen storage cylinders under harsh operating conditions.

[0006] To achieve the above objectives, the technical solution provided in this application is as follows: This application provides a testing device for solid hydrogen storage cylinders under harsh operating conditions, wherein the testing device includes: An explosion-proof box, the explosion-proof box including a box body and an inlet and outlet gas pipeline passing through the box body for connecting the bottle valve of a solid hydrogen storage bottle; A temperature environment simulation system is installed inside the box, including a constant temperature medium box for accommodating solid hydrogen storage cylinders and providing them with a set temperature environment; The monitoring system includes a hydrogen monitoring probe for real-time monitoring of hydrogen leakage concentration, a pressure detector for monitoring the pressure inside the cylinder, a mass flow meter for monitoring the flow rate and cumulative flow rate of hydrogen filling or releasing, and a temperature sensor for recording changes in the cylinder temperature. The pressure detector and the mass flow meter are connected to the inlet and outlet gas pipelines. The safety protection system includes a ventilation module installed on the enclosure; The integrated control system has a data transmission interface for exporting test data and is electrically connected to the temperature environment simulation system, monitoring system and safety assurance system. It is used to set test parameters, collect test data and control the test process.

[0007] Furthermore, the hydrogen monitoring probe extends to the rupture area of ​​the solid hydrogen storage cylinder valve, and the distance between the probe tip of the hydrogen monitoring probe and the rupture opening of the solid hydrogen storage cylinder valve is 2.5cm to 3.5cm.

[0008] Furthermore, the ventilation module is located at the top of the housing, the hydrogen monitoring probe is located inside the housing and below the ventilation module, and the detection end of the hydrogen monitoring probe faces the burst area of ​​the solid hydrogen storage cylinder valve.

[0009] Furthermore, the safety system includes two explosion-proof cameras with a 360° field of view, which are respectively installed on both sides of the enclosure to monitor the appearance and status of the solid hydrogen storage cylinder without blind spots. Furthermore, the accuracy class of the pressure detector is not lower than 0.5, and the measurement accuracy class of the mass flow meter is not lower than 0.05. This application also provides a method for testing solid hydrogen storage cylinders under harsh operating conditions. This method utilizes the aforementioned testing device for solid hydrogen storage cylinders under harsh operating conditions. The testing method includes at least one of the following modes. In each testing mode, an integrated control system continuously collects information on cylinder pressure, hydrogen flow rate, hydrogen leakage information, temperature data, and the cylinder's external appearance. Pressure boundary test mode: Under a set constant temperature environment, the solid hydrogen storage cylinder is gradually pressurized to the preset pressure boundary value through the inlet and outlet gas pipes, and the hydrogen storage capacity is calculated based on the flow data. Temperature boundary test mode: Set a high temperature or low temperature boundary environment through a constant temperature medium chamber, place the solid hydrogen storage bottle in the environment and maintain it for a first preset time; after the first preset time is reached, the flow rate of hydrogen released is detected by a mass flow meter; Severe temperature change test mode: Control the constant temperature medium box to execute a continuous temperature change program, and at the same time perform hydrogen release operation to test the performance of the solid hydrogen storage bottle under severe changes in ambient temperature. Temperature and pressure combined test mode: First, the solid hydrogen storage bottle is kept in a high temperature boundary environment for a second preset time, then hydrogen release operation is performed and continued for a third preset time, while recording the hydrogen release data; the temperature inside the constant temperature medium chamber is reduced, and the solid hydrogen storage bottle is continuously pressurized at a preset pressure boundary value, while recording the temperature at which the solid hydrogen storage bottle begins to absorb hydrogen and the hydrogen absorption curve.

[0010] Furthermore, in the temperature boundary test mode, the high temperature boundary ambient temperature is 75℃~85℃, and the low temperature boundary ambient temperature is -5℃~5℃.

[0011] Furthermore, the preset pressure boundary value in the pressure boundary test mode is 4MPa~5MPa; the set constant temperature environment is 10℃~30℃.

[0012] Furthermore, the continuous temperature change program includes: setting the temperature to a first preset temperature and maintaining it for a fourth preset duration, then lowering the temperature to a second preset temperature within a fifth preset duration and maintaining it for a sixth preset duration.

[0013] Furthermore, when the hydrogen monitoring probe detects a hydrogen leak concentration of 180ppm to 220ppm, the integrated control system issues an alarm signal and automatically stops the test process.

[0014] Compared with related technologies, the beneficial effects of this application are as follows: the testing device for the harsh working conditions of solid hydrogen storage cylinders provided in this application can comprehensively and accurately simulate the harsh conditions that solid hydrogen storage cylinders may encounter in actual use, thereby effectively testing their performance and providing a reliable basis for the quality assessment and safety assurance of solid hydrogen storage cylinders. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a test apparatus according to one embodiment of the test apparatus for the harsh operating conditions of the solid hydrogen storage cylinder of this application.

[0016] Among them, 1-explosion-proof box, 11-box body, 12-inlet and outlet gas pipelines, 121-inlet connector, 122-solenoid valve, 2-constant temperature medium box, 31-hydrogen monitoring probe, 32-pressure detector, 33-mass flow meter, 34-temperature sensor, 41-ventilation module, 42-explosion-proof camera, 5-solid hydrogen storage cylinder, 51-cylinder valve, 52-rupture port, 6-integrated control system. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0018] It should be noted that the terms "upper" and "lower" in this application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0019] In the various figures of this application, for ease of illustration, certain dimensions of structures or parts are exaggerated relative to other structural parts, and are therefore only used to illustrate the basic structure of the subject matter of this application.

[0020] This application provides a testing device for solid hydrogen storage cylinders under harsh operating conditions, such as... Figure 1 As shown, the testing device includes an explosion-proof box 1, a temperature environment simulation system, a monitoring system, a safety assurance system, and an integrated control system 6. Through the collaborative cooperation of each component, the solid hydrogen storage cylinder 5 can be monitored in multiple dimensions, and the simulation and data acquisition of harsh conditions such as temperature and pressure can be realized. The working state of the solid hydrogen storage cylinder 5 under simulated harsh conditions can be completed to evaluate the quality and safety performance of the solid hydrogen storage cylinder 5.

[0021] The explosion-proof box 1 includes a box body 11 and an inlet / outlet gas pipe 12 that passes through the box body 11 and is used to connect the bottle valve 51 of the solid hydrogen storage bottle 5. During the test preparation stage, the box body 11 serves as a basic support and safety protection structure. The solid hydrogen storage bottle 5 is placed inside the box body 11. One end of the inlet / outlet gas pipe 12 is directly connected to the bottle valve 51 of the solid hydrogen storage bottle 5, and the other end extends to the outside of the box body 11, which facilitates the operation of filling or releasing hydrogen from outside the box body 11.

[0022] The inlet and outlet gas pipeline 12 is equipped with an inlet connector 121 for hydrogen gas to enter and a solenoid valve 122 for controlling the flow of hydrogen gas outside the housing. The solenoid valve 122 is communicatively connected to the integrated control system 6 to achieve the purpose of rapid operation of hydrogen gas filling and hydrogen gas release.

[0023] The temperature environment simulation system is set inside the enclosure 11, including a constant temperature medium box 2 for accommodating the solid hydrogen storage bottle 5 and providing it with a set temperature environment. The constant temperature medium box 2 in this application is a water bath, which utilizes the high heat capacity, high thermal conductivity and safe and stable properties of water to accurately simulate thermodynamic boundary conditions and ensure the safety and reliability of the testing process.

[0024] The solid hydrogen storage cylinder 5 includes a cylinder body, a cylinder valve 51 installed at the mouth of the cylinder body, and a burst port 52 provided on the cylinder valve. The area around the burst port 52 is the burst zone. When the pressure inside the cylinder exceeds a set threshold, the burst port 52 will open actively and irreversibly, and high-pressure hydrogen will be discharged rapidly in a predetermined vertical or lateral direction to avoid the cylinder body from bursting.

[0025] The monitoring system includes a hydrogen monitoring probe 31 for real-time monitoring of hydrogen leakage concentration, a pressure detector 32 for monitoring the pressure inside the bottle, a mass flow meter 33 for monitoring the flow rate and cumulative flow of hydrogen being added or released, and a temperature sensor 34 for recording changes in the bottle temperature, to ensure that effective monitoring information is obtained during the test.

[0026] Specifically, the hydrogen monitoring probe 31 is installed inside the explosion-proof enclosure 11 and the detection end of the hydrogen monitoring probe 31 faces the explosion area of ​​the cylinder valve 51.

[0027] Preferably, the hydrogen monitoring probe 31 extends to the rupture zone of the cylinder valve 51, and the distance between the probe tip of the hydrogen monitoring probe 31 and the rupture opening 52 is 2.5cm to 3.5cm, for real-time monitoring of hydrogen leakage. The hydrogen monitoring probe 31 is communicatively connected to the integrated control system 6 to obtain information on whether hydrogen is leaking in real time. The pressure detector 32 is connected to the structure of the inlet and outlet gas pipeline 12 located inside the housing 11. The pressure detector 32 is used to monitor the pressure of hydrogen in the solid hydrogen storage cylinder 5 under different conditions. In this application, the accuracy class of the pressure detector 32 is not lower than 0.5, so as to monitor the pressure of hydrogen in the cylinder in real time and accurately.

[0028] The mass flow meter 33 is connected to the inlet and outlet gas pipeline 12. The mass flow meter 33 is located downstream of the pressure detector 32 away from the bottle valve 51 and is used to detect the hydrogen release rate. In this application, the measurement accuracy class of the mass flow meter 33 is not lower than 0.05 class so as to accurately monitor the hydrogen flow rate. The safety system includes a ventilation module 41 mounted on the housing 11 to ensure the safety of the testing process. The ventilation module 41 is located at the top of the housing 11, and the hydrogen monitoring probe 31 is located below the ventilation module 41. That is, the rupture port 52 is located below the ventilation module 41. If hydrogen leaks from the valve 51 of the solid hydrogen storage cylinder, the hydrogen can be discharged as quickly as possible through the ventilation module 41.

[0029] To increase the rate of hydrogen emission, the safety system also includes a fan, which is located adjacent to the ventilation module 41, and both the fan and the ventilation module 41 are electrically connected to the integrated control system 6.

[0030] The safety protection system includes two explosion-proof cameras 42 with a 360° field of view, which are respectively installed on both sides inside the housing 11. They are used to monitor the appearance of the solid hydrogen storage cylinder without blind spots during the test. The use of explosion-proof cameras 42 in this application can ensure that the cylinder status can still be reliably recorded under dangerous conditions such as simulated hydrogen leakage, so as to achieve the purpose of safe remote monitoring. The integrated control system 6 integrates a data transmission interface for exporting test data and is electrically connected to the temperature environment simulation system, monitoring system, and safety assurance system for setting test parameters, collecting test data, and controlling the test process.

[0031] Specifically, the integrated control system 6 includes a control panel and a data transmission module located on the outside of the enclosure. The control panel integrates a USB-to-serial chip (such as CP2102 or CH340) or an RS-485 transceiver (such as MAX485 chip) for setting test parameters, controlling the test process, and displaying monitoring data in real time. The data transmission module is electrically connected to the control panel and integrates solenoid valve control, temperature and pressure parameter setting and monitoring functions, and fan control, etc., for exporting test data to external devices to realize the test data output function.

[0032] The testing device for the harsh operating conditions of the solid hydrogen storage cylinder of this application can provide the following test modes for the solid hydrogen storage cylinder 5 through the coordinated cooperation of various components: temperature boundary test mode, pressure boundary test mode, severe temperature change test mode, and temperature-pressure composite test mode. The above test modes can comprehensively and accurately simulate the extreme conditions that the solid hydrogen storage cylinder 5 may encounter in actual use, thereby effectively testing its performance and providing a reliable basis for the quality assessment and safety assurance of the solid hydrogen storage cylinder 5.

[0033] This application also provides a test method for the harsh operating conditions of a solid hydrogen storage cylinder, wherein the method is implemented using the aforementioned test device for the harsh operating conditions of the solid hydrogen storage cylinder 5, and the test method includes at least one of the aforementioned test modes.

[0034] The purpose of the pressure boundary test mode is to quantitatively evaluate the hydrogen absorption performance of the solid hydrogen storage cylinder 5 under extreme pressure conditions, thereby verifying the hydrogen absorption capacity and hydrogen absorption efficiency of the solid hydrogen storage cylinder 5 under extreme pressure.

[0035] Specifically, under a constant temperature environment, the solid hydrogen storage bottle 5 is gradually pressurized to a preset pressure boundary value through the inlet and outlet gas pipes 12. During the test, the pressure and flow data inside the bottle, hydrogen leakage information, temperature data, and information on the appearance of the bottle are continuously collected. When the gas flow rate is less than 100 mL / min, the hydrogen filling operation is stopped, and the hydrogen storage capacity of the solid hydrogen storage bottle 5 is calculated based on the flow data curve to accurately determine the actual hydrogen storage capacity of the solid hydrogen storage bottle 5 under the ultimate pressure.

[0036] The preset pressure boundary value in the pressure boundary test mode is 4MPa~5MPa; the set constant temperature environment is 10℃~30℃.

[0037] Meanwhile, the pressure boundary test mode evaluates the hydrogen absorption capacity and structural stability of hydrogen storage materials under high pressure by analyzing the flow rate change curve during the hydrogen charging process. It can also determine whether the hydrogen storage material has reached saturation by monitoring the flow rate approaching zero, avoiding the traditional judgment method of determining that hydrogen absorption has reached saturation when the pressure reaches a threshold.

[0038] The temperature boundary test mode mainly simulates the working conditions of the solid hydrogen storage cylinder 5 under extreme heat or cold conditions. In order to evaluate the dynamic hydrogen supply capability of the solid hydrogen storage cylinder 5 under the most severe ambient temperature, and to ensure that the solid hydrogen storage cylinder 5 can reliably provide power to the terminal under all weather and all geographical conditions, in actual application scenarios, it can ensure the starting performance, climbing ability and range stability of hydrogen-powered two-wheeled vehicles.

[0039] The specific process is as follows: a high temperature or low temperature boundary environment is set through the constant temperature medium box 2, and then the solid hydrogen storage bottle 5 is placed in the environment and kept for a first preset time. During this period, the integrated control system 6 continuously collects information on the pressure inside the bottle, hydrogen leakage, temperature parameters and the appearance of the bottle. After the preset time is reached, the flow rate of hydrogen released is detected by the mass flow meter.

[0040] That is, the temperature boundary test mode includes an extremely low temperature test mode and an extremely high temperature test mode. The high temperature boundary environment temperature is 75℃~85℃, the low temperature boundary environment temperature is -5℃~5℃, and the first preset duration is 1~4 hours.

[0041] The temperature boundary test mode also includes setting the switching logic of solenoid valve 122 before hydrogen release, such as controlling solenoid valve 122 to open for 8 seconds and close for 0.2 seconds. The switching logic of solenoid valve 122 is set after extreme cold or heat. In order to verify the dynamic hydrogen supply response speed and stability of solid hydrogen storage cylinder 5, as well as pulsed hydrogen supply, the matching between solid hydrogen storage cylinder 5 and fuel cell can also be verified. That is, the static extreme temperature test is transformed into a dynamic extreme working condition simulation.

[0042] The severe temperature change test mode simulates the rapid and large temperature changes that the solid hydrogen storage cylinder 5 may encounter in real-world use environments, such as a vehicle suddenly entering an underground garage from direct sunlight or being subjected to a sudden downpour. This verifies the comprehensive performance and reliability of the solid hydrogen storage cylinder 5, especially the hydrogen storage material inside the solid hydrogen storage cylinder 5, under thermal shock and unsteady thermodynamic conditions.

[0043] Specifically: The constant temperature medium box 2 executes a continuous temperature change program, and hydrogen release is performed during the temperature change process. At the same time, the integrated control system 6 continuously collects information on the pressure inside the bottle, hydrogen leakage, temperature parameters, and the appearance of the bottle, and fully records the changes of various parameters during the hydrogen release process, providing data support for evaluating the performance of the hydrogen storage material of the solid hydrogen storage bottle 5 under complex working conditions.

[0044] The continuous temperature change program includes: setting the temperature to a first preset temperature and maintaining it for a fourth preset duration; lowering the temperature to a second preset temperature within a fifth preset duration and maintaining it for a sixth preset duration; wherein the first preset temperature is 50℃~55℃, the second preset temperature is 35℃~40℃, the fourth preset duration is 5~15 minutes, the fifth preset duration is 25~35 minutes, and the sixth preset duration is 25~35 minutes.

[0045] The purpose of the temperature-pressure composite test mode is to simulate the process of releasing hydrogen from the solid hydrogen storage cylinder 5 under high temperature, then shutting down the equipment for natural cooling or forced cooling, and then refilling it with hydrogen. This simulates various extreme working scenarios of the solid hydrogen storage cylinder 5 in actual operation, and thus evaluates the real performance and long-term reliability of the solid hydrogen storage cylinder 5 under multi-field coupling conditions.

[0046] The specific process is as follows: First, the solid hydrogen storage bottle 5 is continuously subjected to a high-temperature boundary environment for a second preset time. Then, hydrogen release is performed and continued for a third preset time, while recording the hydrogen release data. This is used to simulate riding under extreme high-temperature conditions after summer sun exposure, and to detect how much hydrogen the solid hydrogen storage bottle 5 can still effectively output. The hydrogen release data detected by the mass flow meter 33 is integrated to accurately calculate the total amount of hydrogen released by the solid hydrogen storage bottle 5 under the high-temperature environment. If the release amount is significantly lower than the room temperature level, it indicates that the high temperature has caused material performance degradation or a decrease in reversible capacity. The high-temperature boundary environment is 75℃~85℃, the second preset time is 1~4 hours, and the third preset time is 5~15 minutes.

[0047] Subsequently, the solid hydrogen storage cylinder 5 was continuously pressurized at a preset pressure boundary value, and the temperature of the constant temperature medium chamber 2 was changed to a low temperature range. Due to the intrinsic characteristics of the solid hydrogen storage material, hydrogen cannot be added to the hydrogen storage material under high temperature boundary conditions. As the temperature gradually decreases, when the temperature drops to a certain value, the hydrogen storage material gradually begins to absorb hydrogen. The test system will record the temperature at which hydrogen absorption begins. This temperature is the critical temperature at which the hydrogen storage material begins to absorb hydrogen. This critical temperature is not only a core parameter of the material's intrinsic characteristics, but also the starting point for the design of the thermal management system. It is an important reference temperature for judging whether the hydrogen storage material is healthy and whether the test process is effective.

[0048] During the pressurized hydrogen filling operation, the integrated control system 6 continuously collects information on the pressure inside the bottle, flow rate, hydrogen leakage, temperature parameters, and the appearance of the bottle. Based on the flow rate data, it obtains the hydrogen absorption curve under low temperature conditions to verify the working efficiency of the solid hydrogen storage bottle 5 after temperature changes.

[0049] This hydrogen release-cooling-refilling mode is the norm in daily use. The test examines whether the solid hydrogen storage cylinder 5 can reduce the temperature of the cylinder to the critical temperature for effective hydrogen absorption within a reasonable time after releasing hydrogen at high temperature, relying on natural cooling or forced cooling, thus providing data support for the design of the thermal management system.

[0050] The temperature of the constant temperature medium chamber 2 can be changed to the low temperature range by replacing the medium in the constant temperature medium chamber 2 or by quickly changing the temperature through the circulation system. The low temperature range is between 5℃ and 15℃.

[0051] In all the above test modes, when the hydrogen monitoring probe 31 detects a hydrogen leakage concentration of 180ppm to 220ppm, the integrated control system 6 issues an alarm signal and automatically stops the test process to ensure the safety of the entire test process.

[0052] In summary, the testing device for the harsh operating conditions of the solid hydrogen storage cylinder of this application can comprehensively and accurately simulate the harsh conditions that the solid hydrogen storage cylinder 5 may encounter in actual use through the coordinated cooperation of its various components, thereby effectively testing its performance and providing a reliable basis for the quality assessment and safety assurance of the solid hydrogen storage cylinder 5.

[0053] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0054] The detailed descriptions listed above are merely specific illustrations of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent embodiments or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this application.

Claims

1. A testing device for severe operating conditions of a solid hydrogen storage cylinder, characterized in that, The testing apparatus includes: An explosion-proof box, the explosion-proof box including a box body and an inlet and outlet gas pipeline passing through the box body for connecting the bottle valve of a solid hydrogen storage bottle; A temperature environment simulation system is installed inside the box, including a constant temperature medium box for accommodating solid hydrogen storage cylinders and providing them with a set temperature environment; The monitoring system includes a hydrogen monitoring probe for real-time monitoring of hydrogen leakage concentration, a pressure detector for monitoring the pressure inside the cylinder, a mass flow meter for monitoring the flow rate and cumulative flow rate of hydrogen filling or releasing, and a temperature sensor for recording changes in the cylinder temperature. The pressure detector and the mass flow meter are connected to the inlet and outlet gas pipelines. The safety protection system includes a ventilation module installed on the enclosure; The integrated control system has a data transmission interface for exporting test data and is electrically connected to the temperature environment simulation system, monitoring system and safety assurance system. It is used to set test parameters, collect test data and control the test process.

2. The testing apparatus for the harsh operating conditions of a solid hydrogen storage cylinder as described in claim 1, characterized in that, The hydrogen monitoring probe extends to the rupture area of ​​the solid hydrogen storage cylinder valve, and the distance between the probe tip and the rupture opening of the solid hydrogen storage cylinder valve is 2.5cm to 3.5cm.

3. The testing apparatus for the harsh operating conditions of a solid hydrogen storage cylinder as described in claim 1, characterized in that, The ventilation module is located at the top of the enclosure, and the hydrogen monitoring probe is located inside the enclosure and below the ventilation module, with the detection end of the hydrogen monitoring probe facing the rupture zone of the solid hydrogen storage cylinder valve.

4. The testing apparatus for the harsh operating conditions of a solid hydrogen storage cylinder as described in claim 1, characterized in that, The safety system includes two explosion-proof cameras with a 360° field of view, which are respectively installed on both sides of the enclosure to monitor the appearance and condition of the solid hydrogen storage cylinder without blind spots.

5. The testing apparatus for the harsh operating conditions of a solid hydrogen storage cylinder as described in claim 1, characterized in that, The pressure detector has an accuracy class of not less than 0.5, and the mass flow meter has a measurement accuracy class of not less than 0.

05.

6. A test method for solid hydrogen storage cylinders under harsh operating conditions, characterized in that, The test is conducted using the harsh operating conditions testing apparatus for solid hydrogen storage cylinders as described in any one of claims 1 to 5. The testing method includes at least one of the following modes. In each test mode, an integrated control system continuously collects information on cylinder pressure, hydrogen flow rate, hydrogen leakage information, temperature data, and the appearance of the cylinder. Pressure boundary test mode: Under a set constant temperature environment, the solid hydrogen storage cylinder is gradually pressurized to the preset pressure boundary value through the inlet and outlet gas pipes, and the hydrogen storage capacity is calculated based on the flow data. Temperature boundary test mode: Set a high temperature or low temperature boundary environment through a constant temperature medium chamber, place the solid hydrogen storage bottle in the environment and maintain it for a first preset time; after the first preset time is reached, the flow rate of hydrogen released is detected by a mass flow meter; Severe temperature change test mode: Control the constant temperature medium box to execute a continuous temperature change program, and at the same time perform hydrogen release operation to test the performance of the solid hydrogen storage bottle under severe changes in ambient temperature. Temperature and pressure combined test mode: First, the solid hydrogen storage bottle is kept in a high temperature boundary environment for a second preset time, then hydrogen release operation is performed and continued for a third preset time, while recording the hydrogen release data; the temperature inside the constant temperature medium chamber is reduced, and the solid hydrogen storage bottle is continuously pressurized at a preset pressure boundary value, while recording the temperature at which the solid hydrogen storage bottle begins to absorb hydrogen and the hydrogen absorption curve.

7. The test method for solid hydrogen storage cylinders under harsh operating conditions as described in claim 6, characterized in that, In the temperature boundary test mode, the high temperature boundary ambient temperature is 75℃~85℃, and the low temperature boundary ambient temperature is -5℃~5℃.

8. The test method for solid hydrogen storage cylinders under harsh operating conditions as described in claim 6, characterized in that, The preset pressure boundary value in the pressure boundary test mode is 4MPa~5MPa; the set constant temperature environment is 10℃~30℃.

9. The test method for solid hydrogen storage cylinders under harsh operating conditions as described in claim 6, characterized in that, The continuous temperature change program includes: setting the temperature to a first preset temperature and maintaining it for a fourth preset duration, then lowering the temperature to a second preset temperature within a fifth preset duration and maintaining it for a sixth preset duration.

10. The test method for solid hydrogen storage cylinders under harsh operating conditions as described in claim 6, characterized in that, When the hydrogen monitoring probe detects a hydrogen leak concentration of 180ppm to 220ppm, the integrated control system issues an alarm signal and automatically stops the test process.

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