Alkali alk electrolytic cell test fixture

Abstract

The invention discloses an alkaline alk electrolytic cell test fixture which comprises a bracket, a bottom frame is arranged on the outer side of the bracket, a limiting frame is fixedly connected to the inward side of the bottom frame, a stress adjusting assembly is arranged in the limiting frame, and a cathode end plate and an anode end plate are arranged on the opposite side of the stress adjusting assembly. Cooling assemblies are arranged on the outer sides of the cathode end plate and the anode end plate, and a plurality of auxiliary damping assemblies are arranged on the outer side of the limiting frame. The alkaline alk electrolytic cell test fixture disclosed by the invention has the advantages that the test accuracy is ensured, the problems of polar plate deformation, poor contact and the like caused by non-uniform pressure are avoided, the test data can truly reflect the performance of the electrolytic cell, and the reliability and repeatability of the data are improved.

Description

Technical Field

[0001] This invention relates to the field of test fixture technology, and in particular to a test fixture for an alkaline alkali electrolytic cell. Background Technology

[0002] An alkaline electrolyzer (ALK) is a device that uses an alkaline electrolyte to electrolyze water to produce hydrogen. Its core principle is that hydrogen is generated at the cathode and oxygen at the anode during the water electrolysis process. An alkaline electrolyzer is mainly assembled from components such as end plates, sealing gaskets, electrode plates, electrode plates, and diaphragms. The electrolyte is typically a 30% KOH solution or a 26% NaOH solution.

[0003] Uneven pressure in the test fixture caused severe deformation of the electrode plates and extremely poor contact conditions. As a result, the test data could not accurately reflect the performance of the electrolyzer, and the reliability and repeatability of the data were extremely low. In addition, poor contact occurred frequently, making it difficult for the test data to accurately reflect the performance of the electrolyzer, and the reliability and repeatability of the data were greatly reduced. Summary of the Invention

[0004] The purpose of this invention is to provide a test fixture for alkaline alkali electrolyzers, which aims to solve the technical problems of uneven pressure in the test fixture, resulting in severe deformation and poor contact of the electrode plates, and the inability of the test data to truly reflect the performance of the electrolyzer, as well as extremely low reliability and repeatability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an alkaline alk electrolytic cell test fixture, including a support, a bottom frame provided on the outer side of the support, a limiting frame fixedly connected to the inner side of the bottom frame, a stress adjustment component provided inside the limiting frame, a cathode end plate and an anode end plate provided on the opposite side of the stress adjustment component, a cooling component provided on the outer side of both the cathode end plate and the anode end plate, and multiple auxiliary shock absorption components provided on the outer side of the limiting frame; The stress adjustment assembly includes multiple symmetrical air nozzles, each with an annular cavity fixedly connected to its bottom end, and an air pipe fixedly connected to the outer side of each annular cavity. The cooling assembly includes a spray ring, with symmetrical auxiliary frames fixedly connected to the outer side of the spray ring, and a heat transfer pipe fixedly connected to the outer side of the spray ring, with the outer side of the heat transfer pipe located between the inner sides of one of the auxiliary frames. The auxiliary shock absorption assembly includes symmetrical sliding wheels, and each sliding wheel is movably connected to a connecting rod on its inner side.

[0006] Preferably, the stress adjustment assembly further includes a bidirectional motor, the power output shaft of which is connected to a bidirectional lead screw via a coupling, and the two ends of the bidirectional lead screw are movably connected to the two ends of the inner side of the limiting frame near the bidirectional motor.

[0007] Preferably, a spacer is fixedly connected to the outer side of the bidirectional lead screw, the spacer is located at the center of the bidirectional lead screw, and auxiliary round rods are fixedly connected to both ends of the inner side of the limiting frame away from the bidirectional lead screw.

[0008] Preferably, symmetrical sliding plates are movably connected to the outer sides of both the auxiliary round rod and the bidirectional lead screw. Stress sensors are fixedly connected to the opposite side of each sliding plate, and retaining members are fixedly connected to the opposite side of each sliding plate. A retaining ring is fixedly connected to the front end of each retaining member.

[0009] Preferably, an air pump is fixedly connected to the inner side of each of the fixed ring members, and the top end of the air pump is fixedly connected to the end of the air pipe away from the annular cavity. An annular member is fixedly connected to the outer side of each of the fixed members, and the front end of the annular member is fixedly connected to the rear side of the annular cavity. The opposite side of each of the multiple symmetrical air nozzles is fixedly connected to the opposite side of the negative end plate and the positive end plate.

[0010] By incorporating a stress adjustment component, during electrolytic cell testing, a bidirectional motor is activated to rotate the bidirectional lead screw. As the lead screw rotates, spacers on the screw divide it into two parts, causing the threads at both ends to rotate in opposite directions. Driven by the lead screw, the sliding plate moves along the auxiliary rod and the bidirectional lead screw towards either end or the middle of the lead screw (depending on the motor's rotation direction). Simultaneously, the auxiliary rod provides support and guidance, ensuring smooth movement of the sliding plate. After the sliding plate moves towards and contacts the cathode and anode end plates, it begins to clamp and compress the plates. At this time, a stress sensor on the sliding plate continuously senses the pressure and feeds the pressure signal back to the control system. When the stress sensor detects relatively high pressure in the middle section, the control system issues a command to activate the air pump. The air pump delivers gas through an air pipe into the annular cavity, which then distributes the gas to various nozzles. The nozzles spray gas towards the opposite sides of the cathode and anode end plates, generating additional pressure on the outer side of the plates. The pressure increases to balance the pressure difference between the middle and outer sides. As the gas volume delivered by the air pump increases, the pressure generated by the air nozzle increases, gradually achieving precise adjustment of the pressure on the outer side of the electrode plate. The stress sensor continuously monitors pressure changes and feeds the data back to the control system in real time. Based on the feedback data, the control system adjusts the working state of the air pump in real time to maintain a dynamic balance between the middle and outer pressures, ensuring that the electrode plates of the electrolytic cell are subjected to uniform and compliant pressure throughout the entire test process. Once the pressure is adjusted to the set range and remains stable, the stress adjustment component maintains its current state, allowing the electrolytic cell to be tested under stable pressure conditions. During the test, if pressure fluctuations occur due to external factors or internal reactions within the electrolytic cell, the stress sensor will promptly detect the changes, and the control system will make corresponding adjustments to ensure that the pressure remains within the appropriate range. This process ensures test accuracy and avoids problems such as electrode plate deformation and poor contact caused by uneven pressure, ensuring that the test data accurately reflects the performance of the electrolytic cell and improving the reliability and repeatability of the data.

[0011] Preferably, the cooling component further includes symmetrical fixing frames, one end of which is fixedly connected to the front end of the sliding plate, and a telescopic electric rod is fixedly connected to the front end of the fixing frame away from the bidirectional motor, and the front end of the telescopic electric rod is fixedly connected to the front end of the auxiliary frame away from the bidirectional motor.

[0012] Preferably, a telescopic rod is fixedly connected to the front end of the mounting bracket near the bidirectional motor, and a compression spring is fixedly connected to the front end of the mounting bracket near the bidirectional motor. The compression spring is located outside the telescopic rod, and one end of the telescopic rod and the compression spring are fixedly connected to the front end of the auxiliary bracket near the bidirectional motor.

[0013] Preferably, a telescopic tube is fixedly connected to the end of the heat transfer pipe away from the spray ring, a protective box is fixedly connected to the front end of the telescopic tube, an annular copper tube is fixedly connected to the inner side of the protective box, a condenser tube is fixedly connected to the outer side of the annular copper tube, a heat dissipation fan is fixedly connected between the front end and the inner wall of the protective box, a base frame is fixedly connected to the outer side of the protective box, and the bottom end of the base frame is fixedly connected to the top end of the bottom frame.

[0014] Equipped with a cooling component, during electrolytic cell testing, when the cathode and anode plates generate heat and require temperature adjustment, the sliding plate moves towards and clamps the plates. The fixing frame then moves to the designated position, and the telescopic electric rod extends, pushing the auxiliary frame and spray ring away from the bidirectional motor towards the plates. Simultaneously, the telescopic rod and compression spring near the bidirectional motor extend to ensure the spray ring is stably close to the plates, effectively cooling them. Inside the protective chamber, the condenser tubes operate, reducing the temperature inside the annular copper tube. The cooling fan accelerates airflow, delivering the cool air from the annular copper tube to the spray ring via a heat pipe. The air is then sprayed from the nozzles on the spray ring, directly acting on the surfaces of the cathode and anode plates, thus reducing their temperature. Throughout the electrolytic cell testing process, if the plate temperature changes, the distance between the spray ring and the plates can be adjusted by regulating the telescopic electric rod's extension, thereby adjusting the cooling effect and achieving precise dynamic control of the cathode and anode plate temperatures.

[0015] Preferably, the shock absorption auxiliary component further includes a retaining frame, the bottom end of which is fixedly connected to the outer side of the limiting frame, and a fixing rod fixedly connected to the top end of the retaining frame. A movable component is movably connected to the outer side of the fixing rod, and buffer springs are fixedly connected to both ends of the movable component. The opposite ends of the buffer springs are fixedly connected to the inner side of the retaining frame. Multiple spring rods are fixedly connected to the outer side of the movable component, and a connecting frame is fixedly connected to the top end of each spring rod. The inner side of the connecting frame is fixedly connected to both ends of the connecting rod.

[0016] By incorporating vibration damping auxiliary components, during electrolytic cell testing, the sliding wheel contacts the outside of the electrolytic cell. The vibration generated during equipment operation is transmitted through the sliding wheel and connecting rod to the connecting frame. The connecting frame drives the spring rod, which absorbs some of the vibration energy. The remaining energy is transmitted through the moving parts to the buffer spring. The buffer spring deforms to further absorb and disperse the energy. The moving parts, in conjunction with the buffer spring, reduce vibrations in different directions. Throughout the testing process, the auxiliary vibration damping components work continuously. The sliding wheel, spring rod, and buffer spring work together to absorb and buffer vibrations, ensuring stable operation of the testing equipment and reducing the impact of vibration on the test results.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the alkaline alkali electrolyzer test fixture provided by the present invention ensures test accuracy, avoids problems such as electrode plate deformation and poor contact caused by uneven pressure, ensures that the test data can truly reflect the performance of the electrolyzer, and improves the reliability and repeatability of the data. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an alkaline alk electrolytic cell test fixture proposed in this invention.

[0019] Figure 2 This is a schematic diagram of the left side of a test fixture for an alkaline alkane electrolyzer proposed in this invention.

[0020] Figure 3 This is a schematic diagram of the rear structure of the cathode end plate of an alkaline alk electrolytic cell test fixture proposed in this invention.

[0021] Figure 4 This is a schematic diagram of the auxiliary shock absorption component structure of an alkaline alkane electrolysis cell test fixture proposed in this invention.

[0022] Figure 5 This is a schematic diagram of the stress adjustment component structure of an alkaline alkane electrolytic cell test fixture proposed in this invention.

[0023] Figure 6 This is a schematic diagram of the stress adjustment component of an alkaline alkane electrolytic cell test fixture proposed in this invention.

[0024] Figure 7 This is a schematic diagram of the stress adjustment component structure of an alkaline alkane electrolytic cell test fixture proposed in this invention.

[0025] Figure 8 This is a schematic diagram of the stress adjustment component of an alkaline alkane electrolytic cell test fixture proposed in this invention.

[0026] In the diagram: 1. Support; 2. Cathode end plate; 3. Anode end plate; 4. Bottom frame; 5. Limiting frame; 6. Stress adjustment assembly; 601. Bidirectional motor; 602. Bidirectional lead screw; 603. Spacer; 604. Auxiliary round rod; 605. Sliding plate; 606. Stress sensor; 607. Fixing component; 608. Annular component; 609. Fixing ring component; 610. Air pump; 611. Air pipe; 612. Annular cavity; 613. Air nozzle; 7. Cooling assembly; 701. Fixing bracket; 70 2. Compression spring; 703. Telescopic rod; 704. Auxiliary frame; 705. Spray ring; 706. Temperature conveying pipe; 707. Telescopic electric rod; 708. Telescopic tube; 709. Protective box; 710. Condenser pipe; 711. Annular copper tube; 712. Base frame; 713. Cooling fan; 8. Auxiliary shock absorption assembly; 801. Fixing frame; 802. Fixed rod; 803. Moving part; 804. Buffer spring; 805. Spring rod; 806. Connecting frame; 807. Connecting rod; 808. Sliding wheel. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] The alkaline ALK electrolytic cell test fixture disclosed in this invention is mainly used in scenarios where uneven pressure in the test fixture leads to severe deformation and poor contact of the electrode plates, and the test data cannot truly reflect the performance of the electrolytic cell, resulting in extremely low reliability and repeatability.

[0029] Reference Figures 1-8 An alkaline alkane electrolytic cell test fixture includes a support 1, a bottom frame 4 on the outer side of the support 1, a limiting frame 5 fixedly connected to the bottom frame 4 on one side, a stress adjustment component 6 inside the limiting frame 5, a cathode end plate 2 and an anode end plate 3 on the opposite side of the stress adjustment component 6, a cooling component 7 on the outer side of both the cathode end plate 2 and the anode end plate 3, and multiple auxiliary shock absorption components 8 on the outer side of the limiting frame 5. The stress adjustment assembly 6 includes multiple symmetrical air nozzles 613. The bottom end of each air nozzle 613 is fixedly connected to an annular cavity 612, and an air pipe 611 is fixedly connected to the outside of each annular cavity 612. The cooling component 7 includes a spray ring 705, with symmetrical auxiliary frames 704 fixedly connected to the outer side of the spray ring 705, and a heat transfer pipe 706 fixedly connected to the outer side of the spray ring 705, with the outer side of the heat transfer pipe 706 located between the inner sides of one of the auxiliary frames 704. The auxiliary shock absorption component 8 includes symmetrical sliding wheels 808, and each sliding wheel 808 is movably connected to a connecting rod 807 on its inner side.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 In a preferred embodiment, the stress adjustment assembly 6 further includes a bidirectional motor 601. The power output shaft of the bidirectional motor 601 is connected to a bidirectional lead screw 602 via a coupling. Both ends of the bidirectional lead screw 602 are movably connected to the inner ends of the limiting frame 5 near the bidirectional motor 601. A spacer 603 is fixedly connected to the outer side of the bidirectional lead screw 602. The spacer 603 is located at the center of the bidirectional lead screw 602. Auxiliary round rods 604 are fixedly connected to both ends of the inner side of the limiting frame 5 away from the bidirectional lead screw 602. Symmetrical sliding plates 605 are movably connected to the outer sides of both the auxiliary round rods 604 and the bidirectional lead screw 602. The sliding plates 605 are opposite in direction. A stress sensor 606 is fixedly connected to one side of each sliding plate 605, and a retaining member 607 is fixedly connected to the opposite side of each sliding plate 605. A retaining ring 609 is fixedly connected to the front end of each retaining member 607. An air pump 610 is fixedly connected to the inner side of each retaining ring 609. The top end of the air pump 610 is fixedly connected to the end of the air pipe 611 away from the annular cavity 612. An annular member 608 is fixedly connected to the outer side of each retaining member 607. The front end of the annular member 608 is fixedly connected to the rear side of the annular cavity 612. The opposite sides of multiple symmetrical air nozzles 613 are fixedly connected to the opposite sides of the negative end plate 2 and the positive end plate 3.

[0031] Specifically, during the electrolytic cell test, the bidirectional motor 601 is started to drive the bidirectional lead screw 602 to rotate. The spacer 603 divides the lead screw into two parts, so that the threads at both ends rotate in opposite directions. This drives the sliding plate 605 to move along the auxiliary round rod 604 and the bidirectional lead screw 602. The auxiliary round rod 604 provides auxiliary support and guidance. After the sliding plate 605 contacts the electrode plate, it begins to clamp and compress. The stress sensor 606 on the plate senses the pressure in real time and feeds it back to the control system. When the intermediate pressure is high, the control system instructs the air pump 610 to supply air to the annular cavity 612 through the air pipe 611. Then, the air nozzle 613 sprays air to the outside of the electrode plate to increase the pressure and balance the pressure difference. The pressure can be precisely adjusted as the air volume increases. The stress sensor 606 continuously monitors the pressure. The control system adjusts the working state of the air pump 610 in real time according to the feedback to maintain the dynamic balance of the pressure. After the pressure stabilizes within the set range, the component is tested in the same state. If the pressure fluctuates, the sensor detects the change, and the control system readjusts to ensure that the pressure is appropriate.

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8In a preferred embodiment, the cooling assembly 7 further includes symmetrical fixing frames 701, one end of each fixing frame 701 being fixedly connected to the front end of the sliding plate 605. A telescopic electric rod 707 is fixedly connected to the front end of the fixing frame 701 furthest from the bidirectional motor 601. The front end of the telescopic electric rod 707 is fixedly connected to the front end of an auxiliary frame 704 furthest from the bidirectional motor 601. A telescopic rod 703 is fixedly connected to the front end of the fixing frame 701 closest to the bidirectional motor 601. A compression spring 702 is fixedly connected to the front end of the fixing frame 701 closest to the bidirectional motor 601, and the compression spring 702 is located on the telescopic rod 703. On the outside, one end of the telescopic rod 703 and the compression spring 702 are fixedly connected to the front end of the auxiliary frame 704 near the bidirectional motor 601. The end of the heat transfer pipe 706 away from the spray ring 705 is fixedly connected to the telescopic tube 708. The front end of the telescopic tube 708 is fixedly connected to the protective box 709. The inner side of the protective box 709 is fixedly connected to the annular copper tube 711. The outer side of the annular copper tube 711 is fixedly connected to the condenser tube 710. The front inner wall of the protective box 709 is fixedly connected to the heat dissipation fan 713. The outer side of the protective box 709 is fixedly connected to the base frame 712. The bottom end of the base frame 712 is fixedly connected to the top end of the bottom frame 4.

[0033] Specifically, during the electrolytic cell test, after the sliding plate 605 clamps and positions the electrode plate, the fixing frame 701 is in place. At this time, the telescopic electric rod 707 extends, pushing the auxiliary frame 704 and the spray ring 705 closer to the electrode plate. The telescopic rod 703 cooperates with the compression spring 702 to stably position the spray ring 705. Inside the protection box 709, the condenser pipe 710 cools the air, and the heat dissipation fan 713 accelerates the airflow. The cold air passes through the temperature transmission pipe 706 to the spray ring 705, and the nozzle sprays air to cool the electrode plate. During the test, if the electrode plate temperature changes, the telescopic electric rod 707 is adjusted to change the distance between the spray ring 705 and the electrode plate to achieve precise temperature control.

[0034] Reference Figure 1 and Figure 4 In a preferred embodiment, the shock absorption auxiliary component further includes a retaining frame 801. The bottom end of the retaining frame 801 is fixedly connected to the outer side of the limiting frame 5, and a fixing rod 802 is fixedly connected to the top end of the retaining frame 801. A movable member 803 is movably connected to the outer side of the fixing rod 802. Buffer springs 804 are fixedly connected to both ends of the movable member 803. The opposite end of the buffer spring 804 is fixedly connected to the inner side of the retaining frame 801. A plurality of spring rods 805 are fixedly connected to the outer side of the movable member 803. A connecting frame 806 is fixedly connected to the top end of each spring rod 805. The inner side of the connecting frame 806 is fixedly connected to both ends of the connecting rod 807.

[0035] Specifically, during electrolytic cell testing, the sliding wheel 808 contacts the outside of the electrolytic cell. When the equipment operates and vibrates, the vibration is transmitted through the sliding wheel 808 and connecting rod 807 to the connecting frame 806. The connecting frame 806 drives the spring rod 805 to move. The spring rod 805 absorbs some of the vibration energy, and the remaining energy is transmitted through the moving part 803 to the buffer spring 804. The buffer spring 804 deforms to further absorb and disperse the energy. The moving part 803, in conjunction with the buffer spring 804, weakens vibrations in different directions. Throughout the testing process, the auxiliary vibration damping component 8 continuously operates. The sliding wheel 808, spring rod 805, and buffer spring 804 work together to absorb and buffer vibrations, ensuring the stability of the testing equipment and reducing the impact of vibration on the testing results.

[0036] Working principle: During electrolytic cell testing, the bidirectional motor 601 drives the bidirectional lead screw 602 to rotate, which in turn drives the sliding plate 605 to move along the auxiliary round rod 604 and clamp the electrode plate. The stress sensor 606 provides real-time pressure feedback. When the intermediate pressure is high, the air pump 610 injects air to increase the pressure. The pressure is adjusted in real time according to the feedback to maintain the pressure balance. After stabilization, the component maintains its state. Adjustments are made again when the pressure fluctuates. During cooling, after the sliding plate 605 is positioned, the telescopic electric rod 707 pushes the spray ring 705 closer to the electrode plate. The telescopic rod 703 and the compression spring 702 work together to stabilize the spray ring 705. The protection box 709 is cooled, and the cold air passes through the temperature transmission pipe 706 to the spray ring 705 to cool the electrode plate. When the temperature changes, the telescopic electric rod 707 is adjusted to precisely control the temperature. During vibration testing, the vibration is transmitted to the connecting frame 806 via the sliding wheel 808 and the connecting rod 807. The spring rod 805 absorbs part of the energy, and the remainder is transmitted to the buffer spring 804 for further absorption and dispersion. The moving part 803 works in conjunction with the buffer spring 804 to reduce vibration. Throughout the testing process, the auxiliary vibration damping component 8 works continuously to ensure equipment stability and reduce the impact on the test results.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An alkaline alk electrolyser test rig comprising a cradle (1) characterised in that, The outer side of the bracket (1) is provided with a bottom frame (4), the inner side of the bottom frame (4) is fixedly connected with a limiting frame (5), the inside of the limiting frame (5) is provided with a stress adjusting assembly (6), the opposite side of the stress adjusting assembly (6) is provided with a cathode end plate (2) and an anode end plate (3), the outer side of the cathode end plate (2) and the anode end plate (3) is provided with a cooling assembly (7), and the outer side of the limiting frame (5) is provided with a plurality of auxiliary damping assemblies (8). The stress adjusting assembly (6) comprises a plurality of symmetrical air spray heads (613), the bottom end of each air spray head (613) is fixedly connected with an annular cavity (612), and the outer side of the annular cavity (612) is fixedly connected with an air pipe (611); The cooling assembly (7) comprises a spray ring (705), the outer side of the spray ring (705) is fixedly connected with symmetrical auxiliary frames (704), the outer side of the spray ring (705) is fixedly connected with a temperature conveying pipe (706), and the outer side of the temperature conveying pipe (706) is located between the inner sides of the auxiliary frames (704); The auxiliary damping assembly (8) comprises symmetrical sliding wheels (808), and the inner side of each sliding wheel (808) is movably connected with a connecting rod (807).

2. An alkaline alk electrolyzer test fixture according to claim 1, wherein, The stress adjusting assembly (6) further comprises a bidirectional motor (601), the power output shaft of the bidirectional motor (601) is connected with a bidirectional screw rod (602) through a shaft coupling, and the two ends of the bidirectional screw rod (602) are movably connected with the inner sides of the limiting frame (5) close to the bidirectional motor (601).

3. An alkaline alk electrolyser test rig according to claim 2, characterised in that, The outer side of the bidirectional screw rod (602) is fixedly connected with a spacing piece (603), the spacing piece (603) is located at the center position of the bidirectional screw rod (602), and the inner sides of the limiting frame (5) away from the bidirectional screw rod (602) are fixedly connected with auxiliary round rods (604).

4. An alkaline alk electrolyser test rig according to claim 3, wherein, The outer sides of the auxiliary round rods (604) and the bidirectional screw rod (602) are movably connected with symmetrical sliding plates (605), the opposite sides of the sliding plates (605) are fixedly connected with stress sensors (606), and the opposite sides of the sliding plates (605) are fixedly connected with retaining members (607), the front ends of the retaining members (607) are fixedly connected with fixed ring members (609).

5. An alkaline alk electrolyser test rig according to claim 4, wherein, The inner sides of the fixed ring members (609) are fixedly connected with air pumps (610), the top ends of the air pumps (610) are fixedly connected between the air pipes (611) away from the annular cavities (612), the outer sides of the retaining members (607) are fixedly connected with annular members (608), the front ends of the annular members (608) are fixedly connected with the rear sides of the annular cavities (612), and the opposite sides of the plurality of symmetrical air spray heads (613) are fixedly connected with the opposite sides of the cathode end plate (2) and the anode end plate (3).

6. An alkaline alk electrolyzer test fixture according to claim 1, wherein, The cooling assembly (7) further comprises symmetrical fixed frames (701), one end of the fixed frame (701) is fixedly connected with the front end of the sliding plate (605), and the front end of the fixed frame (701) away from the bidirectional motor (601) is fixedly connected with an extension electric rod (707), and the front end of the extension electric rod (707) is fixedly connected with the front end of the auxiliary frame (704) away from the bidirectional motor (601).

7. An alkaline alk electrolyser test rig according to claim 6, wherein, The front end of the fixed frame (701) close to the bidirectional motor (601) is fixedly connected with an extension rod (703), the front end of the fixed frame (701) close to the bidirectional motor (601) is fixedly connected with a compression spring (702), and the compression spring (702) is located outside the extension rod (703), and one end of the extension rod (703) and the compression spring (702) is fixedly connected with the front end of the auxiliary frame (704) close to the bidirectional motor (601).

8. An alkaline alk electrolyser test rig according to claim 7, characterised in that, The extension tube (708) is fixedly connected with a protection box (709) at the front end, the inner side of the protection box (709) is fixedly connected with an annular copper pipe (711), the outer side of the annular copper pipe (711) is fixedly connected with a condenser pipe (710), and the front end inner wall of the protection box (709) is fixedly connected with a cooling fan (713), the outer side of the protection box (709) is fixedly connected with a bottom frame (712), and the bottom end of the bottom frame (712) is fixedly connected with the top end of the bottom frame (4).

9. An alkaline alk electrolyzer test fixture according to claim 1, wherein, The damping auxiliary assembly further comprises a retaining frame (801), the bottom end of the retaining frame (801) is fixedly connected with the outer side of the limiting frame (5), and the top end of the retaining frame (801) is fixedly connected with a fixed rod (802), and the outer side of the fixed rod (802) is movably connected with a movable piece (803).

10. An alkaline alk electrolyser test rig according to claim 9, wherein, The two ends of the movable piece (803) are fixedly connected with buffer springs (804), and the opposite ends of the buffer springs (804) are fixedly connected with the inner side of the retaining frame (801), the outer side of the movable piece (803) is fixedly connected with a plurality of spring rods (805), the top end of the spring rod (805) is fixedly connected with a connecting frame (806), and the inner side of the connecting frame (806) is fixedly connected with the two ends of the connecting rod (807).

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