A hydrogen-temperature-load synchronized damage test platform

Abstract

This invention relates to the field of damage testing platforms, specifically disclosing a hydrogen-temperature-load synchronous damage testing platform, comprising a hydraulic rod, a support platform, a hydrogen tank, a heating sleeve, and a test cylinder. The test cylinder is mounted on the support platform, and the hydrogen tank is mounted on one side of the support platform via a clamp. The heating sleeve is located on the outer side of the test cylinder. A top cover is provided on the top of the test cylinder, and a punch rod is located inside the top cover. The top end of the punch rod is connected to the telescopic end of the hydraulic rod. A hydrogen supply cylinder is located at the bottom of the test cylinder, and an inlet pipe and a pressure detection pipe are respectively located on both sides of the hydrogen supply cylinder. A pressure gauge is mounted on the pressure detection pipe. This invention's small punch rod method only requires the preparation of small circular samples and can be carried out in special environments such as high and low temperatures. Due to the small size of the device, the required hydrogen loading is small, improving hydrogen safety. The top cover of the test cylinder is assembled with the test cylinder by a pin.

Description

Technical Field

[0001] This invention relates to the field of damage testing platforms, specifically a hydrogen-temperature-loading synchronous damage testing platform. Background Technology

[0002] Austenitic stainless steel is widely used in the manufacturing of critical equipment such as high-pressure hydrogen storage containers, hydrogenation reactors, and liquid hydrogen transportation pipelines. The diffusion and accumulation of hydrogen atoms within the material significantly reduces its plastic deformation capacity and fracture toughness, leading to hydrogen embrittlement failure. Austenitic stainless steel operating in hydrogen environments for extended periods faces unavoidable hydrogen damage. The core influencing factor of hydrogen damage is the coupling effect of hydrogen partial pressure, temperature, and strain. Hydrogen partial pressure directly determines the amount of hydrogen adsorbed and dissolved on the material surface; the higher the partial pressure, the higher the concentration of hydrogen dissolved in the material. High hydrogen partial pressure accelerates the enrichment of hydrogen towards defects (such as cracks and dislocations), reducing the binding energy at defect sites and providing a material basis for hydrogen damage (such as hydrogen-induced cracking). At low temperatures, the hydrogen diffusion rate is low, and hydrogen tends to accumulate at defects in atomic or molecular form, easily leading to hydrogen-induced embrittlement. At medium to high temperatures, hydrogen diffusion is active and may react chemically with elements in the material (such as carbon and nitrogen) to generate gases such as methane and ammonia, leading to internal bubbling or cracking. Excessive temperature may exacerbate the synergistic destruction of material oxidation and hydrogen. Strain will generate new defects (such as dislocations and microcracks), which are preferential enrichment sites for hydrogen, reducing the fracture toughness of the material. Tensile strain will amplify the harmful effects of hydrogen, making cracks easier to nucleate and propagate. Dynamic strain (such as fatigue load) will repeatedly generate new defects, continuously providing enrichment channels for hydrogen and accelerating hydrogen-induced fatigue failure.

[0003] Traditional research methods simulate hydrogen damage by electrochemically charging austenitic stainless steel with hydrogen, but this differs from actual high-pressure hydrogen environments. Recent studies have also investigated hydrogen damage in materials under high-pressure hydrogen conditions, but the test samples used are mostly standard samples, which have significant limitations. Firstly, the size of standard samples (decimeter-scale) makes it difficult to accurately characterize the hydrogen damage features of local micro-regions in the material, and cannot effectively analyze the influence of microscopic structural features on the mechanical properties after hydrogen damage. Secondly, large samples require large hydrogen environment devices, and under high pressure, the hydrogen loading increases significantly, greatly increasing the requirements for hydrogen safety. Summary of the Invention

[0004] The purpose of this invention is to provide a hydrogen-temperature-loading synchronous damage testing platform to address the issue raised in the background section regarding the use of electrochemical hydrogen charging to simulate hydrogen damage in austenitic stainless steel. However, this method differs from actual high-pressure hydrogen environments. While recent studies have investigated hydrogen damage in materials under high-pressure hydrogen conditions, the test samples used are mostly standard samples, which have significant limitations. Firstly, the size of standard samples (decimeter-scale) makes it difficult to accurately characterize the hydrogen damage features of local micro-regions in the material, and it cannot effectively analyze the influence of microscopic structural features on the mechanical properties after hydrogen damage. Secondly, large samples require large hydrogen environment devices, and under high pressure, the increased hydrogen loading significantly raises the requirements for hydrogen safety.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen-temperature-load synchronous damage testing platform, comprising a hydraulic rod, a support platform, a hydrogen tank, a heating sleeve, and a test cylinder. The test cylinder is mounted on the support platform. The hydrogen tank is mounted on one side of the support platform via a clamp. The heating sleeve is mounted on the outer side of the test cylinder. The top of the test cylinder is provided with a top cover. A punch rod is provided inside the top cover, and the top end of the punch rod is connected to the telescopic end of the hydraulic rod. A hydrogen supply cylinder is provided at the bottom of the test cylinder. An inlet pipe and a pressure detection pipe are respectively provided on both sides of the hydrogen supply cylinder, and a pressure gauge is provided on the pressure detection pipe.

[0006] In a further embodiment, the top cover is assembled with the test cylinder by means of a pin at its bottom, and also includes a workpiece, which is embedded in the middle of the top cover and its two ends are inserted into the slots of the top cover. The top cover is provided with two pads, and the two pads cooperate with the workpiece.

[0007] In a further embodiment, the test cylinder has a hydrogen guiding cavity in the middle, which is directly opposite to the hydrogen supply cylinder. The heating sleeve has a mounting bracket on the outside, and a temperature sensing panel is provided in the center of the front of the mounting bracket. The heating sleeve has an electric heating layer in the inner layer, and a temperature sensing head is provided on the inner sidewall of the heating sleeve near the port.

[0008] In a further embodiment, the bottom end of the punch is provided with a pressure ball, which is positioned directly opposite the center of the workpiece.

[0009] In a further embodiment, the bottom of the hydrogen tank is provided with a gas delivery head, which is connected to the gas inlet pipe through a gas delivery pipe, and a control valve is provided on the gas delivery pipe.

[0010] In a further embodiment, the support platform is provided with support legs on both sides of the bottom, and the support legs are provided with support bases at the bottom. A limiting top plate is provided above the support platform via a support frame, and the hydraulic rod is located in the middle of the limiting top plate.

[0011] In a further embodiment, a cooling component is provided on the outer side of the heating jacket. The cooling component includes a semiconductor cooling chip and heat dissipation fins. The semiconductor cooling chip is attached to the outer wall of the heating jacket, and the heat dissipation fins are connected to the heat dissipation end of the semiconductor cooling chip. The temperature sensing panel is electrically connected to the cooling component to realize dual control and adjustment of the heating jacket for both cooling and heating.

[0012] In a further embodiment, the hydraulic rod is connected to a servo control system, which includes a displacement sensor, a force sensor, and a servo driver. The displacement sensor is connected to the punch rod to detect its displacement, the force sensor is located at the connection end between the hydraulic rod and the punch rod to detect the applied force, and the servo driver is electrically linked to the hydraulic rod, the temperature sensing panel, and the control valve of the hydrogen tank.

[0013] In a further embodiment, the inner wall of the test cylinder is provided with a hydrogen permeation-proof coating, which is a nickel-based alloy coating or a ceramic coating with a thickness of 50-200 μm; the inner walls of the hydrogen supply cylinder, the inlet pipe, and the gas delivery pipe are all passivated and coated with a polytetrafluoroethylene anti-corrosion layer.

[0014] In a further embodiment, the support platform is equipped with a hydrogen leak detection module and an emergency exhaust module. The hydrogen leak detection module includes a hydrogen sensor located at the connection between the test cylinder and the hydrogen supply cylinder, and the hydrogen sensor is electrically connected to an audible and visual alarm. The emergency exhaust module includes an emergency exhaust pipe connected to the test cylinder and an explosion-proof exhaust valve. The explosion-proof exhaust valve is electrically linked to the hydrogen sensor. When the detected hydrogen leak concentration exceeds the threshold, the explosion-proof exhaust valve automatically opens and discharges the hydrogen in the test cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The small punch method of this invention only requires the preparation of small circular samples and can be carried out in special environments such as high temperature and low temperature. Due to the small size of the device, the required amount of hydrogen is small, which improves hydrogen safety.

[0016] 2. The test cylinder of this invention is provided with a top cover, which is assembled with the test cylinder by means of a pin, making it easy to install and disassemble. A slot is provided inside the top cover to facilitate the installation and disassembly of the workpiece. A hydrogen supply cylinder is provided at the bottom of the test cylinder, and an inlet pipe and a pressure detection pipe are respectively provided on both sides of the hydrogen supply cylinder. A pressure gauge is provided on the pressure detection pipe to detect the hydrogen pressure. The inlet pipe is connected to the gas delivery head at the bottom of the hydrogen tank through a gas delivery pipe, so that hydrogen can be continuously supplied, which is convenient for continuous gas supply.

[0017] 3. The support platform of this invention is provided with a hoop on one side, which facilitates the installation and fixation of the hydrogen tank. The bottom of the support platform is connected to the support base through the support legs, which facilitates the support and installation of the test cylinder. A heating sleeve is provided on the outside of the test cylinder, and a mounting bracket is provided on the outside of the heating sleeve. The mounting bracket facilitates the installation of the temperature sensing panel, which facilitates intelligent control of the heating sleeve and intelligent heating control of the test cylinder.

[0018] 4. The outer side of the heating jacket is also equipped with a cooling component, which includes a thermoelectric cooler and heat dissipation fins. The thermoelectric cooler is attached to the outer wall of the heating jacket, and the heat dissipation fins are connected to the heat dissipation end of the thermoelectric cooler. The temperature sensing panel is electrically connected to the cooling component, realizing dual control and regulation of the heating jacket's cooling and heating functions. It achieves precise control over a wide temperature range from below room temperature to 200°C, and can simulate hydrogen damage under different temperature conditions such as low temperature and medium-high temperature. It is suitable for the temperature simulation requirements of austenitic stainless steel in various hydrogen-related service environments, eliminating the need for additional low-temperature testing equipment and improving the platform's scenario adaptability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a hydrogen-temperature-loading synchronous damage testing platform according to the present invention; Figure 2 This is a schematic diagram of the structure of the test cylinder of the present invention; Figure 3 This is a cross-sectional view of the test tube of the present invention; Figure 4 This is a schematic diagram of the heating jacket of the present invention; Figure 5 This is the front view of the present invention; Figure 6 This is a schematic diagram of the structure of part A of the present invention.

[0020] In the diagram: 1. Hydraulic rod; 2. Support frame; 3. Limiting top plate; 4. Top cover; 5. Support platform; 6. Support leg; 7. Hydrogen tank; 8. Hoop; 9. Gas delivery head; 10. Gas delivery pipe; 11. Control valve; 12. Support base; 13. Punch rod; 14. Mounting bracket; 15. Temperature sensor panel; 16. Gas inlet pipe; 17. Pressure gauge; 18. Pressure detection tube; 19. Hydrogen supply cylinder; 20. Heating jacket; 21. Heating layer; 22. Temperature sensor head; 23. Test cylinder; 24. Hydrogen delivery chamber; 25. Pressure ball; 26. Workpiece; 27. Slot; 28. Pad; 29. ​​Pin. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Please see Figure 1-6 This invention provides an embodiment of a hydrogen-temperature-load synchronous damage testing platform, comprising a hydraulic rod 1, a support platform 5, a hydrogen tank 7, a heating sleeve 20, and a test cylinder 23. The test cylinder 23 is mounted on the support platform 5, which facilitates the installation of the test cylinder 23. The hydrogen tank 7 is mounted on one side of the support platform 5 via a clamp 8, which also facilitates the installation of the hydrogen tank 7. The heating sleeve 20 is located on the outer side of the test cylinder 23, allowing for temperature control of the test cylinder 23. The top of the test cylinder 23 is equipped with an upper... The cover 4 facilitates the installation of the workpiece 26. The inside of the cover 4 is equipped with a punch 13, and the top of the punch 13 is connected to the telescopic end of the hydraulic rod 1. The workpiece 26 is subjected to damage test by punch 13. The bottom of the test cylinder 23 is equipped with a hydrogen supply cylinder 19. The hydrogen supply cylinder 19 is equipped with an air inlet pipe 16 and a pressure detection pipe 18 on both sides. The pressure detection pipe 18 is equipped with a pressure gauge 17. Hydrogen is introduced into the hydrogen supply cylinder 19 through the air inlet pipe 16, and the pressure of the hydrogen is detected through the pressure detection pipe 18.

[0023] The upper cover 4 is assembled with the test cylinder 23 by inserting the pin 29 at its bottom. It also includes a workpiece 26. The pin 29 facilitates the insertion and assembly of the upper cover 4 with the top of the test cylinder 23. The workpiece 26 is inserted in the middle of the upper cover 4, and its two ends are inserted into the slots 27 of the upper cover 4. The upper cover 4 is provided with two pads 28, and the two pads 28 cooperate with the workpiece 26. The slots 27 facilitate the installation of the workpiece 26, and the pads 28 are used to support the workpiece 26.

[0024] The test cylinder 23 has a hydrogen guiding cavity 24 in the middle, which is directly opposite to the hydrogen supply cylinder 19. The heating jacket 20 has a mounting bracket 14 on the outside, and a temperature sensing panel 15 is provided in the center of the front of the mounting bracket 14. The heating jacket 20 has an electric heating layer 21 in the inner layer, and a temperature sensing head 22 is provided on the inner side wall of the heating jacket 20 near the port. Hydrogen is transported through the hydrogen guiding cavity 24. The mounting bracket 14 facilitates the installation of the temperature sensing panel 15. The temperature sensing panel 15 is used for intelligent control of the heating jacket 20.

[0025] The bottom end of the punch 13 is provided with a pressure ball 25, which is positioned directly opposite the middle of the workpiece 26. The workpiece 26 is punched by the pressure ball 25.

[0026] The bottom of the hydrogen tank 7 is equipped with a gas delivery head 9. The gas delivery head 9 is connected to the inlet pipe 16 through a gas delivery pipe 10. The gas delivery pipe 10 is equipped with a control valve 11. Hydrogen is delivered to the gas delivery pipe 10 through the gas delivery head 9. The control valve 11 controls the opening and closing of the gas delivery pipe 10 to deliver hydrogen to the inlet pipe 16.

[0027] Support legs 6 are provided on both sides of the bottom of the support platform 5. Support base 12 is provided at the bottom of the support legs 6. A limiting top plate 3 is provided above the support platform 5 through the support frame 2. The hydraulic rod 1 is located in the middle of the limiting top plate 3. The support legs 6 provide support for the support platform 5, the support base 12 is used to provide stable support for the equipment, and the limiting top plate 3 facilitates the installation of the hydraulic rod 1.

[0028] The outer side of the heating jacket 20 is also equipped with a cooling component, which includes a semiconductor cooling chip and heat dissipation fins. The semiconductor cooling chip is attached to the outer wall of the heating jacket 20, and the heat dissipation fins are connected to the heat dissipation end of the semiconductor cooling chip. The temperature sensing panel 15 is electrically connected to the cooling component, realizing dual control and regulation of cooling and heating of the heating jacket 20. It can achieve precise control over a wide temperature range from below room temperature to 200°C, and can simulate hydrogen damage under different temperature conditions such as low temperature (e.g., liquid hydrogen transportation scenarios) and medium and high temperature. It is suitable for the temperature simulation requirements of austenitic stainless steel in various hydrogen-related service environments, without the need for additional low temperature testing equipment, thus improving the platform's scenario adaptability.

[0029] The hydraulic rod is connected to a servo control system, which includes a displacement sensor, a force sensor, and a servo driver. The displacement sensor is connected to the punch 13 to detect its displacement, and the force sensor is located at the connection end between the hydraulic rod and the punch 13 to detect the applied force. The servo driver is electrically linked to the hydraulic rod, the temperature sensing panel 15, and the control valve 11 of the hydrogen tank 7. Multiple loading modes, such as constant load, stepped load, and fatigue cyclic load, can be set to simulate different strain conditions, such as static tension and dynamic fatigue, accurately matching the mechanical stress state of austenitic stainless steel in actual service. A coupling program for hydrogen partial pressure, temperature, and loading can be preset (e.g., synchronously adjusting the loading rate when hydrogen partial pressure increases, matching the corresponding load when temperature changes), automatically simulating multi-factor dynamic coupling damage under complex conditions, replacing manual adjustment, and improving test accuracy and automation.

[0030] The inner wall of the test cylinder 23 is coated with a hydrogen permeation-resistant coating, which is a nickel-based alloy coating or a ceramic coating with a thickness of 50-200 μm. The inner walls of the hydrogen supply cylinder 19, the inlet pipe 16, and the delivery pipe 10 are all passivated and coated with a polytetrafluoroethylene anti-corrosion layer. The hydrogen permeation-resistant coating on the inner wall of the test cylinder can prevent hydrogen from diffusing into the test cylinder body, avoid distortion of test parameters caused by hydrogen leakage, and prevent the test cylinder from failing due to hydrogen embrittlement, thereby improving the structural safety of the test chamber under high-pressure hydrogen conditions. The anti-corrosion layer and passivation treatment of the hydrogen delivery pipeline can prevent trace impurities in the hydrogen from corroding the pipeline, and at the same time prevent the pipeline material from reacting with hydrogen to generate impurity gases, ensuring the purity of the hydrogen used in the test and ensuring the accuracy of the hydrogen damage test results.

[0031] The support platform 5 is equipped with a hydrogen leak detection module and an emergency exhaust module. The hydrogen leak detection module includes a hydrogen sensor located at the connection between the test cylinder 23 and the hydrogen supply cylinder 19, and the hydrogen sensor is electrically connected to an audible and visual alarm. The emergency exhaust module includes an emergency exhaust pipe connected to the test cylinder 23 and an explosion-proof exhaust valve. The explosion-proof exhaust valve is electrically linked to the hydrogen sensor. When the detected hydrogen leak concentration exceeds the threshold, the explosion-proof exhaust valve automatically opens and discharges the hydrogen in the test cylinder. The hydrogen sensor accurately detects the hydrogen concentration at key connection points of the test chamber. When a leak occurs, the audible and visual alarm sounds immediately, reminding the test personnel to handle the situation promptly and reducing the safety risk of hydrogen leaks. When the leak concentration exceeds the threshold, the emergency exhaust module automatically opens and quickly discharges the high-pressure hydrogen in the test cylinder, minimizing the risk of hydrogen explosion and combustion, and significantly improving the platform's safety protection level in high-pressure hydrogen tests.

[0032] Working principle: During use, hydrogen is delivered from the gas delivery pipe 10 to the inlet pipe 16 through the gas delivery head 9. The gas delivery pipe 10 can be opened and closed by the control valve 11, allowing hydrogen to be delivered to the hydrogen supply cylinder 19. The hydrogen pressure is detected by the pressure detection pipe 18 and the pressure gauge 17 on it. The hydrogen is then delivered to the test cylinder 23 through the hydrogen delivery chamber 24 and acts on the workpiece 26. At the same time, the heating jacket 20 is intelligently controlled by the temperature sensing panel 15, and the temperature sensing head 22 inside the panel further controls the heating process. Temperature detection is performed to control the heating of the test cylinder 23. The workpiece 26 can be installed inside the upper cover 4 by embedding, and both ends of the workpiece 26 are embedded in the slots 27. The upper cover 4 is assembled with the test cylinder 23 by inserting pins 29. Hydrogen is introduced into the test cylinder 23 through the hydrogen guiding cavity 24 and acts on the workpiece 26. At the same time, the synchronous loading of the punch 13 is controlled by the hydraulic rod 1, so that the punch 13 acts on the workpiece 26 through the pressure ball 25 at its bottom, so that the synchronous damage test of the workpiece is carried out.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hydrogen-temperature-load synchronous damage testing platform, comprising a hydraulic rod (1), a support platform (5), a hydrogen tank (7), a heating jacket (20), and a test cylinder (23), characterized in that: The test cylinder (23) is mounted on the support platform (5). The hydrogen tank (7) is mounted on one side of the support platform (5) via a hoop (8). The heating sleeve (20) is mounted on the outside of the test cylinder (23). The top of the test cylinder (23) is provided with a top cover (4). The inside of the top cover (4) is provided with a punch (13), and the top of the punch (13) is connected to the telescopic end of the hydraulic rod (1). The bottom of the test cylinder (23) is provided with a hydrogen supply cylinder (19). The two sides of the hydrogen supply cylinder (19) are respectively provided with an inlet pipe (16) and a pressure detection pipe (18). The pressure detection pipe (18) is provided with a pressure gauge (17).

2. The hydrogen-temperature-loading synchronous damage testing platform according to claim 1, characterized in that: The upper cover (4) is assembled with the test cylinder (23) by the pin (29) at its bottom, and also includes a workpiece (26). The workpiece (26) is embedded in the middle of the upper cover (4), and its two ends are inserted into the slots (27) of the upper cover (4). The upper cover (4) is provided with two pads (28), and the two pads (28) cooperate with the workpiece (26).

3. The hydrogen-temperature-loading synchronous damage testing platform according to claim 1, characterized in that: The test tube (23) has a hydrogen conduction cavity (24) in the middle, which is directly opposite to the hydrogen supply tube (19). The heating sleeve (20) has a mounting bracket (14) on the outside, and a temperature sensing panel (15) is provided in the center of the front of the mounting bracket (14). The heating sleeve (20) has an electric heating layer (21) in the inner layer, and a temperature sensing head (22) is provided on the inner side wall of the heating sleeve (20) near the port.

4. The hydrogen-temperature-loading synchronous damage testing platform according to claim 2, characterized in that: The bottom end of the punch (13) is provided with a pressure ball (25), which is positioned directly opposite the middle of the workpiece (26).

5. The hydrogen-temperature-loading synchronous damage testing platform according to claim 1, characterized in that: The bottom of the hydrogen tank (7) is provided with a gas delivery head (9), which is connected to the gas inlet pipe (16) through a gas delivery pipe (10). A control valve (11) is provided on the gas delivery pipe (10).

6. The hydrogen-temperature-loading synchronous damage testing platform according to claim 1, characterized in that: The support platform (5) has support legs (6) on both sides of its bottom. The support legs (6) have a support base (12) at their bottom. The support platform (5) has a limiting top plate (3) above it via a support frame (2). The hydraulic rod (1) is located in the middle of the limiting top plate (3).

7. The hydrogen-temperature-loading synchronous damage testing platform according to claim 1, characterized in that: The outer side of the heating sleeve (20) is also provided with a cooling component, which includes a semiconductor cooling chip and heat dissipation fins. The semiconductor cooling chip is attached to the outer wall of the heating sleeve (20), and the heat dissipation fins are connected to the heat dissipation end of the semiconductor cooling chip. The temperature sensing panel (15) is electrically connected to the cooling component to realize the dual control adjustment of cooling and heating of the heating sleeve (20).

8. The hydrogen-temperature-loading synchronous damage testing platform according to claim 1, characterized in that: The hydraulic rod (1) is connected to a servo control system, which includes a displacement sensor, a force sensor and a servo driver. The displacement sensor is connected to the punch rod (13) to detect its displacement. The force sensor is located at the connection end between the hydraulic rod (1) and the punch rod (13) to detect the loading force. The servo driver is electrically linked to the control valve (11) of the hydraulic rod (1), the temperature sensing panel (15) and the hydrogen tank (7).

9. The hydrogen-temperature-loading synchronous damage testing platform according to claim 1, characterized in that: The inner wall of the test cylinder (23) is provided with a hydrogen permeation-proof coating, which is a nickel-based alloy coating or a ceramic coating with a thickness of 50-200μm; the inner walls of the hydrogen supply cylinder (19), the inlet pipe (16), and the gas delivery pipe (10) are all passivated and coated with a polytetrafluoroethylene anti-corrosion layer.

10. The hydrogen-temperature-loading synchronous damage testing platform according to claim 1, characterized in that: The support platform (5) is equipped with a hydrogen leak detection module and an emergency exhaust module. The hydrogen leak detection module includes a hydrogen sensor located at the connection between the test cylinder (23) and the hydrogen supply cylinder (19). The hydrogen sensor is electrically connected to the audible and visual alarm. The emergency exhaust module includes an emergency exhaust pipe connected to the test cylinder (23) and an explosion-proof exhaust valve. The explosion-proof exhaust valve is electrically linked to the hydrogen sensor. When the hydrogen leak concentration is detected to exceed the threshold, the explosion-proof exhaust valve automatically opens and discharges the hydrogen in the test cylinder.

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