Testing equipment for detecting adhesive force of water electrolysis hydrogen production electrode

Abstract

The invention provides test equipment for detecting the adhesive force of a water electrolysis hydrogen production electrode, and relates to the technical field of material test.The test equipment comprises a frame, a box is fixedly installed on the inner wall of the frame, an electrode body is arranged in the box, and a plurality of nozzles are arranged in the electrode body and located on one side of the electrode body; the hydraulic rod and the gear rack drive the clamping plate to synchronously clamp the electrode, so that the electrode is uniformly stressed and does not deviate; the rubber pads on the inner sides of the clamping plates can protect the electrode from being scratched and can also prevent displacement during impact, the clamping frame is stable, follow-up adjustment is facilitated, the first servo motor can drive the electrode to rotate, the angle and the speed are adjusted, high-pressure water flow flushes all the faces of the electrode, and one face is prevented from being detected. The water flow system can simulate the impact condition during real hydrogen production, so that the detection result is more effective, misjudgment is reduced, and waste and waste water pollution are reduced; the filter element can filter impurities, the second servo motor drives the brush to automatically clean the filter element, the bottom valve can directly discharge the impurities, and the overall detection efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of material testing, more specifically, it relates to a kind of test equipment for detecting the adhesion of water electrolysis hydrogen electrode. BACKGROUND

[0002] Water electrolysis hydrogen electrode is the core functional component of water electrolysis hydrogen production equipment, mainly divided into anode and cathode, usually with metal or conductive composite material as matrix, surface coated with high catalytic activity coating, some will also be matched with conductive layer, diffusion layer to optimize electron conduction, electrolyte and gas transmission efficiency. In the electrolysis process, hydrogen evolution reaction occurs at the cathode, and the catalytic activity, electronic conductivity, electrolyte wettability and adhesion of the coating and the matrix directly determine the efficiency of water electrolysis hydrogen production, energy consumption level and long-term operation stability of the equipment.

[0003] At present, a kind of test equipment for detecting the adhesion of water electrolysis hydrogen electrode, at least has the following technical problems:

[0004] The mainstream electrode adhesion detection technology in the industry is difficult to meet the efficient, accurate and environmentally friendly detection requirements in actual application. First, in the electrode body fixing process, the existing equipment adopts simple mechanical clamping structure, and the electrode body is prone to uneven stress and position deviation during clamping. Some clamping devices do not have buffer protection structure, and directly contact with the surface of the electrode body, which may cause scratches and coating damage on the surface of the electrode, affecting the accuracy of the test results, and may also cause electrode displacement due to unstable clamping in subsequent impact test, further reducing the detection reliability. At the same time, the stability of traditional clamping frame structure is insufficient, which is difficult to support the multi-angle adjustment requirement of electrode body in the detection process, limiting the flexibility of subsequent detection operation. At the same time, in terms of resource utilization and environmental protection, the existing detection equipment generally lacks effective water recycling mechanism, and the water flow after impact test carries electrode debris, impurities and other direct emissions, which not only causes a lot of water waste, increases the detection cost, but also produces industrial wastewater, pollutes the environment. A few devices with water recycling function have obvious defects in the filter system, the filter core is easy to be blocked by impurities, and the cleaning and maintenance need to disassemble the equipment cover plate, which is complicated and time-consuming, seriously affecting the detection efficiency. At the same time, the filtered impurities are difficult to discharge conveniently, and long-term accumulation will further reduce the filtering effect, affecting the accuracy of subsequent detection. SUMMARY

[0005] To address the aforementioned technical problems, this invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. This addresses the shortcomings of mainstream electrode adhesion testing technologies in practical applications, which often fail to meet the demands for efficient, accurate, and environmentally friendly testing. Firstly, in the electrode fixing stage, existing devices mostly employ simple mechanical clamping structures. During clamping, uneven force distribution and positional shifts on the electrode body are common. Some clamping devices lack buffer protection structures, directly and rigidly contacting the electrode surface. This can cause scratches and coating damage, affecting the accuracy of the test results. Furthermore, unstable clamping during subsequent impact tests can lead to electrode displacement, further reducing testing reliability. Simultaneously, traditional clamping frame structures lack stability, making it difficult to support multi-angle adjustments of the electrode body during testing, limiting the flexibility of subsequent testing operations. Moreover, in terms of resource utilization and environmental protection, existing testing equipment generally lacks effective water recycling mechanisms. Water flowing after impact testing carries electrode debris and impurities directly into the water, resulting in significant water waste, increased testing costs, and the generation of industrial wastewater, causing environmental pollution. The few devices with water circulation functions also have obvious defects in their filtration systems. The filter cartridges are easily clogged by impurities, and cleaning and maintenance require disassembling the equipment cover, which is cumbersome and time-consuming, seriously affecting the testing efficiency. At the same time, the filtered impurities are difficult to remove easily, and long-term accumulation will further reduce the filtration effect, leading to a decline in the quality of the circulating water and affecting the accuracy of subsequent tests.

[0006] A testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production includes:

[0007] The frame has a box fixedly installed on its inner wall. An electrode body is installed inside the box. Several nozzles are installed inside the electrode body and on one side of the electrode body. A funnel is fixedly installed at the bottom of the box. A connecting pipe is fixedly installed at the bottom of the funnel. A tank is installed on one side of the box. A filter element is fixedly installed inside the tank. Hard brushes are symmetrically rotated inside the filter element. A drain valve is installed at the bottom of the tank.

[0008] A water delivery assembly, located on the tank, is used to deliver filtered water from the tank to several nozzles.

[0009] A clamping assembly, located inside the housing, is used to clamp the electrode body.

[0010] A first drive assembly is located on the housing and is used to drive the clamping assembly to rotate.

[0011] The second drive assembly is located on the tank and is used to drive the two stiff brushes to rotate.

[0012] Preferably, the water delivery assembly includes a first support plate, which is fixedly installed on one side of the tank. A pressurized water pump is fixedly installed on the tank. A water inlet pipe is fixedly installed on the inlet end of the pressurized water pump. One end of the water inlet pipe passes through the tank and extends into its interior. A water outlet pipe is fixedly installed on the outlet end of the pressurized water pump. One end of the water outlet pipe passes through the tank and is fixedly installed with a diversion pipe. A plurality of the nozzles are connected to the diversion pipe.

[0013] Preferably, a protective shell is fixedly installed on the top of the first bearing plate, the pressurized water pump is located inside the protective shell, and the water outlet pipe is connected to the diversion pipe.

[0014] Preferably, the clamping assembly includes two clamping plates, each with a rubber pad fixedly installed on one side of the clamping plates that are close to each other. The electrode body is located between the two rubber pads. A second fixing plate is provided on one side of the two clamping plates. A fixing block is fixedly installed on the side of the second fixing plate that is close to the two clamping plates. A gear is rotatably installed on one side of the fixing block. Racks are provided on both the left and right sides of the gear. Sliding buckles are fitted on both the upper and lower sides of the gear and on the two racks. Baffles are symmetrically fixedly installed on the second fixing plate and on both sides of the fixing block. A cylinder is symmetrically fixedly installed between two corresponding baffles. A slider is slidably installed on two corresponding cylinders. The two sliders are tightly welded to the two sliding buckles respectively. A hydraulic rod is fixedly installed on the other side of the second fixing plate. One side of one of the sliders passes through the second fixing plate and is tightly welded to the output end of the hydraulic rod. A first fixing plate is provided on the other side of the second fixing plate. The first fixing plate is fixed to the second fixing plate by four fixing posts.

[0015] Preferably, one of the sliding buckles is tightly welded to one of the racks, another sliding buckle is slidably connected to one of the racks, another sliding buckle is tightly welded to another rack, and one of the sliding buckles is slidably connected to another rack. The rubber pad has anti-slip texture on one side, and the gear meshes with the two racks.

[0016] Preferably, the first drive assembly includes a second support plate, which is fixedly mounted on the housing. A first servo motor is fixedly mounted on the second support plate, and the output shaft of the first servo motor passes through the housing and is fixed to the first fixed plate.

[0017] Preferably, the output shaft of the first servo motor is rotatably connected to the housing, and the output shaft of the first servo motor is tightly welded to the first fixed plate.

[0018] Preferably, the second drive assembly includes a second servo motor, which is fixedly mounted on the top of the tank. A slide bar is provided between the two hard brushes. The output shaft of the second servo motor extends through the tank into the filter element and is tightly welded to the connecting rod. Springs are symmetrically arranged inside the connecting rod. Slide bars are provided on the side of the connecting rod where the two springs are far apart from each other. Both slide bars pass through the connecting rod and are fixed to one side of the two hard brushes respectively.

[0019] Preferably, the slide rod is slidably connected to the connecting rod, the two springs are respectively tightly welded to the two slide rods, and the two slide rods are respectively tightly welded to the two hard brushes.

[0020] Preferably, the top of the housing is provided with a cover plate, and the top of the cover plate is symmetrically provided with handles. An installation plate is fixedly installed on the inner wall of the housing, and a plurality of the nozzles are fixedly installed on the installation plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. First, the electrode body is fixed by the clamping assembly to ensure that the electrode body is stable and uniformly stressed during the test. The hydraulic rod outputs power to push one of the welded sliders to slide along the cylinder. Since the slider and the sliding buckle are tightly welded, the sliding of the slider drives the corresponding sliding buckle to move. The sliding buckle and the rack adopt a "partial welding and partial sliding" cooperation method, and the rack meshes with the gear. Therefore, the movement of a single sliding buckle will drive the gear to rotate on the fixed block, thereby driving the rack on the other side to move in the opposite direction. Finally, the two sliding buckles move closer to each other synchronously. The movement of the sliding buckles drives the two clamping plates to move closer to each other until the rubber pad on the inner side of the clamping plate is tightly attached to the electrode body, completing the clamping and fixing of the electrode body. The rubber pad can prevent the clamping plate from damaging the surface of the electrode body, and at the same time enhance the friction to prevent the electrode body from shifting during the subsequent impact test. In addition, the second fixing plate is connected to the first fixing plate by four fixing columns to form a stable clamping structure, which provides a structural basis for the subsequent rotation of the electrode body. After the electrode body is fixed, the equipment enters the adhesion detection stage. The core is to observe whether the coating of the electrode body is peeled off by impacting the surface of the electrode body with pressurized water flow, so as to judge the strength of the adhesion. At the same time, the first driving component can realize the electrode body being subjected to force from multiple angles. The pressurized water pump on the first bearing plate is started, and water is drawn from the tank through the water pump pipe. After the pressurized water pump pressurizes the water, the high-pressure water is delivered to the distribution pipe in the tank through the water outlet pipe. The distribution pipe evenly distributes the water flow to several nozzles installed on the mounting plate. The nozzles spray high-pressure water flow onto the surface of the electrode body to simulate the impact of water flow on the electrode body during the water electrolysis hydrogen production process.

[0023] 2. To avoid biased test results due to impact from a single angle, the first servo motor on the second support plate is activated. Its output shaft passes through the housing and is tightly welded to the first fixed plate, driving the first fixed plate, the second fixed plate, and the clamped electrode body to rotate synchronously. By controlling the speed and direction of the first servo motor, the rotation angle and speed of the electrode body can be adjusted, allowing the high-pressure water jet from the nozzle to cover different surface areas of the electrode body, comprehensively testing the adhesion performance of the electrode body under different orientations. If the electrode body adhesion is insufficient, phenomena such as coating peeling and separation of the substrate and coating will occur under the impact of water flow. Operators can judge whether the adhesion of the electrode body meets the standard by observing these phenomena. The water flow after impacting the electrode body will carry electrode debris and impurities that may have detached. The equipment realizes water resource recycling and reuse through a water circulation filtration system, reducing testing costs and wastewater discharge. The water flow inside the housing and Impurities, under the influence of gravity, collect in the funnel at the bottom and flow into the connecting pipe, eventually reaching the tank. Inside the tank, the filter element performs preliminary filtration, intercepting large particles of impurities. Simultaneously, the second drive assembly activates, and the second servo motor outputs power. Its output shaft extends through the tank into the filter element, driving the connecting rod to rotate. Symmetrically arranged springs inside the connecting rod push the sliding rod outwards, ensuring the hard brush at the end of the sliding rod makes close contact with the inner wall of the filter element. The rotation of the connecting rod drives the hard brush to rotate synchronously, cleaning the impurities adhering to the inner wall of the filter element and preventing clogging that could affect filtration efficiency. The cleaned impurities separate from the filtered water and can be drawn back by the water supply assembly's pump pipe for the next testing cycle. When impurities accumulate to a certain level at the bottom of the tank, the drain valve at the bottom of the tank can be opened to directly discharge the impurities and a small amount of wastewater without removing the cover, making operation more convenient and efficient. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the box body structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0027] Figure 4 This is a schematic diagram of the box structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the tank structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the connecting rod structure of the present invention;

[0030] Figure 7 This is one of the schematic diagrams of the clamping component structure of the present invention;

[0031] Figure 8 This is the second schematic diagram of the clamping component structure of the present invention;

[0032] Figure 9 This is one of the schematic diagrams of the internal structure of the second fixing plate of the present invention;

[0033] Figure 10 This is the second schematic diagram of the internal structure of the second fixing plate of the present invention;

[0034] Figure 11 This is the third schematic diagram of the internal structure of the second fixing plate of the present invention.

[0035] In the diagram, the correspondence between component names and attached drawing numbers is as follows: 1. Box body; 2. Electrode body; 3. Nozzle; 4. Funnel; 5. Connecting pipe; 6. Tank; 7. Filter element; 8. Hard brush; 9. Cover plate; 10. Handle; 11. Water outlet pipe; 12. Pressurized water pump; 13. First support plate; 14. Water suction pipe; 15. Second support plate; 16. First servo motor; 17. Mounting plate; 18. Diverter pipe; 19. Second servo motor; 20. Connecting rod; 21. Spring; 22. Slide rod; 23. Clamping plate; 24. Protective shell; 25. Rubber pad; 26. Fixing column; 27. First fixing plate; 28. Second fixing plate; 29. ​​Baffle; 30. Hydraulic rod; 31. Fixing block; 32. Gear; 33. Slider; 34. Cylinder; 35. Rack; 36. Sliding buckle; 37. Drain valve; 38. Frame. Detailed Implementation

[0036] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0037] Please see Figures 1-11 This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production, comprising:

[0038] The system comprises a frame 38, a housing 1 fixedly mounted on the inner wall of the frame 38, an electrode body 2 disposed inside the housing 1, several nozzles 3 disposed inside the electrode body 2 and on one side thereof, a funnel 4 fixedly mounted on the bottom of the housing 1, a connecting pipe 5 fixedly mounted on the bottom of the funnel 4, a tank 6 disposed on one side of the housing 1, a filter element 7 fixedly mounted inside the tank 6, hard brushes 8 symmetrically rotated inside the filter element 7, and a drain valve 37 disposed at the bottom of the tank 6; a water delivery assembly located on the housing 1, used to deliver filtered water from the tank 6 to the several nozzles 3; a clamping assembly located inside the housing 1, used to clamp the electrode body 2; a first drive assembly located on the housing 1, used to drive the clamping assembly to rotate; and a second drive assembly located on the tank 6, used to drive the two hard brushes 8 to rotate.

[0039] First, the electrode body 2 is fixed by the clamping assembly to ensure that the electrode body 2 is stable and uniformly stressed during the testing process. The hydraulic rod 30 outputs power to push one of the welded sliders 33 to slide along the cylinder 34. Since the slider 33 is tightly welded to the sliding buckle 36, the sliding of the slider 33 drives the corresponding sliding buckle 36 to move. The sliding buckle 36 and the rack 35 adopt a "partial welding and partial sliding" cooperation method, and the rack 35 meshes with the gear 32. Therefore, the movement of a single sliding buckle 36 will drive the gear 32 to rotate on the fixed block 31, thereby driving the rack 35 on the other side to move in the opposite direction. Finally, the two sliding buckles 36 move closer to each other synchronously. The movement of the sliding buckles 36 drives the two clamping plates 23 to move closer to each other until the rubber pad 25 on the inner side of the clamping plate 23 is tightly attached to the electrode body 2, completing the clamping and fixing of the electrode body 2. The setting of the rubber pad 25 can avoid the clamping plate 23 from damaging the surface of the electrode body 2, and at the same time enhance the friction to prevent the electrode body 2 from shifting in the subsequent impact test.Furthermore, the second fixing plate 28 is connected to the first fixing plate 27 by four fixing posts 26, forming a stable clamping structure, which provides a structural basis for the subsequent rotation of the electrode body 2. After the electrode body 2 is fixed, the equipment enters the adhesion testing stage. The core is to observe whether the coating of the electrode body 2 peels off by impacting the surface of the electrode body 2 with pressurized water flow, thereby judging the strength of the adhesion. At the same time, the first driving component can realize the electrode body 2 under multi-angle force. The pressurized water pump 12 on the first bearing plate 13 is started, and water is drawn from the tank 6 through the water pumping pipe 14. After the pressurized water pump 12 pressurizes the water, the high-pressure water is delivered to the diversion pipe 18 in the box 1 through the water outlet pipe 11. The diversion pipe 18 evenly distributes the water flow to Several nozzles 3 are mounted on the mounting plate 17. The nozzles 3 spray high-pressure water jets onto the surface of the electrode body 2 to simulate the impact of water flow on the electrode body 2 during the water electrolysis hydrogen production process. To avoid biased test results due to impact from a single angle, the first servo motor 16 on the second support plate 15 is activated. Its output shaft passes through the housing 1 and is tightly welded to the first fixing plate 27, driving the first fixing plate 27, the second fixing plate 28, and the clamped electrode body 2 to rotate synchronously. By controlling the speed and direction of the first servo motor 16, the rotation angle and speed of the electrode body 2 can be adjusted so that the high-pressure water jets sprayed by the nozzles 3 can cover different surface areas of the electrode body 2, comprehensively testing the adhesion of the electrode body 2 under force from different directions. If the adhesion of electrode body 2 is insufficient, phenomena such as coating peeling and separation of the substrate and coating will occur under the impact of water flow. The staff can judge whether the adhesion of electrode body 2 meets the standard by observing these phenomena. The water flow after impacting electrode body 2 will carry electrode debris and impurities that may fall off. The equipment realizes water resource recycling and reuse through water circulation filtration system, reducing testing costs and wastewater discharge. The water flow and impurities in the tank 1 are collected in the funnel 4 at the bottom under the action of gravity, and then guided into the connecting pipe 5 through the funnel 4, and finally transported to the tank 6. The filter element 7 inside the tank 6 performs preliminary filtration of the water flow, intercepting large particulate impurities in the water. At the same time, the second drive component is started, and the second servo motor 19 outputs power. Its output shaft extends through the tank 6 into the filter element 7, driving the connecting rod 20 to rotate. The springs 21 symmetrically arranged inside the connecting rod 20 push the slide rod 22 outward, so that the hard brush 8 at the end of the slide rod 22 makes close contact with the inner wall of the filter element 7. The rotation of the connecting rod 20 drives the hard brush 8 to rotate synchronously, cleaning the impurities attached to the inner wall of the filter element 7, preventing the impurities from clogging the filter element 7 and affecting the filtration efficiency. The cleaned impurities are separated from the filtered water and can be drawn again by the water supply component's pumping pipe 14 to enter the next round of testing cycle. When the impurities at the bottom of the tank 6 accumulate to a certain extent, the drain valve 37 at the bottom of the tank 6 can be opened to directly discharge the impurities and a small amount of wastewater without removing the cover plate 9, making the operation more convenient and efficient.

[0040] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0041] The water delivery assembly includes a first support plate 13, which is fixedly installed on one side of the tank 1. A pressurized water pump 12 is fixedly installed on the tank 1. A water inlet pipe 14 is fixedly installed on the water inlet end of the pressurized water pump 12. One end of the water inlet pipe 14 passes through the tank 6 and extends into it. A water outlet pipe 11 is fixedly installed on the water outlet end of the pressurized water pump 12. One end of the water outlet pipe 11 passes through the tank 1 and is fixedly installed with a diversion pipe 18. Several nozzles 3 are connected to the diversion pipe 18.

[0042] The pressurized water pump 12 on the first support plate 13 is started and draws water from the tank 6 through the water pumping pipe 14. After the pressurized water pump 12 pressurizes the water, it delivers the high-pressure water to the diversion pipe 18 in the box 1 through the water outlet pipe 11. The diversion pipe 18 distributes the water flow evenly to several nozzles 3 installed on the mounting plate 17. The nozzles 3 spray high-pressure water flow onto the surface of the electrode body 2 to simulate the impact of water flow on the electrode body 2 during the water electrolysis hydrogen production process.

[0043] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0044] A protective shell 24 is fixedly installed on the top of the first bearing plate 13. The pressurized water pump 12 is located inside the protective shell 24, and the water outlet pipe 11 is connected to the diversion pipe 18.

[0045] This ensures that the booster pump 12 is not exposed and can be better protected, and ensures that the water in the booster pump 12 can enter the diversion pipe 18 through the outlet pipe 11.

[0046] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0047] The clamping assembly includes two clamping plates 23. Rubber pads 25 are fixedly installed on the sides of the two clamping plates 23 that are close to each other. The electrode body 2 is located between the two rubber pads 25. A second fixing plate 28 is provided on one side of the two clamping plates 23. A fixing block 31 is fixedly installed on the side of the second fixing plate 28 close to the two clamping plates 23. A gear 32 is rotatably mounted on one side of the fixing block 31. Racks 35 are provided on both the left and right sides of the gear 32. Sliding buckles 36 are fitted on the upper and lower sides of the gear 32 and on the two racks 35. The second fixing plate 28 and the fixing block 31... Both sides are symmetrically fixedly installed with baffles 29, and cylinders 34 are symmetrically fixedly installed between the two corresponding baffles 29. Sliders 33 are slidably installed on the two corresponding cylinders 34. The two sliders 33 are tightly welded to the two sliding buckles 36 respectively. A hydraulic rod 30 is fixedly installed on the other side of the second fixed plate 28. One side of one of the sliders 33 passes through the second fixed plate 28 and is tightly welded to the output end of the hydraulic rod 30. A first fixed plate 27 is provided on the other side of the second fixed plate 28. The first fixed plate 27 is fixed to the second fixed plate 28 by four fixed posts 26.

[0048] The hydraulic rod 30 outputs power to push one of the welded sliders 33 to slide along the cylinder 34. Since the slider 33 is tightly welded to the sliding buckle 36, the sliding of the slider 33 causes the corresponding sliding buckle 36 to move. The sliding buckle 36 and the rack 35 adopt a "partial welding and partial sliding" cooperation method, and the rack 35 meshes with the gear 32. Therefore, the movement of a single sliding buckle 36 will drive the gear 32 to rotate on the fixed block 31, thereby driving the rack 35 on the other side to move in the opposite direction. Finally, the two sliding buckles 36 move closer to each other synchronously. The movement of the sliding buckles 36 causes the two clamping plates 23 to move closer to each other until the rubber pad 25 on the inner side of the clamping plate 23 is tightly attached to the electrode body 2, completing the clamping and fixing of the electrode body 2. The setting of the rubber pad 25 can avoid the clamping plate 23 from damaging the surface of the electrode body 2, and at the same time enhance the friction to prevent the electrode body 2 from shifting in subsequent impact tests. In addition, the second fixing plate 28 and the first fixing plate 27 are connected by four fixing columns 26 to form a stable clamping structure, which provides a structural basis for the subsequent rotation of the electrode body 2. After the electrode body 2 is fixed, the equipment enters the adhesion detection stage. The core is to observe whether the coating of the electrode body 2 is peeled off by impacting the surface of the electrode body 2 with pressurized water flow, so as to judge the strength of the adhesion. At the same time, the first driving component can realize the electrode body 2 to be subjected to force from multiple angles.

[0049] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0050] One of the sliding buckles 36 is tightly welded to one of the racks 35, and the other sliding buckle 36 is slidably connected to one of the racks 35. The other sliding buckle 36 is tightly welded to another rack 35. One of the sliding buckles 36 is slidably connected to another rack 35. Anti-slip texture is provided on one side of the rubber pad 25. The gear 32 meshes with the two racks 35.

[0051] Since the slider 33 and the sliding buckle 36 are tightly welded, the slider 33 slides and drives the corresponding sliding buckle 36 to move. The sliding buckle 36 and the rack 35 adopt a "partial welding and partial sliding" cooperation method, and the rack 35 meshes with the gear 32. Therefore, the movement of a single sliding buckle 36 will drive the gear 32 to rotate on the fixed block 31, thereby driving the rack 35 on the other side to move in the opposite direction. Finally, the two sliding buckles 36 move closer to each other synchronously, ensuring that the surface of the rubber pad 25 has a large friction force to better fix the electrode body 2.

[0052] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0053] The first drive assembly includes a second support plate 15, which is fixedly mounted on the housing 1. A first servo motor 16 is fixedly mounted on the second support plate 15. The output shaft of the first servo motor 16 passes through the housing 1 and is fixed to the first fixing plate 27.

[0054] The first servo motor 16 on the second support plate 15 is started, and its output shaft passes through the housing 1 and is tightly welded to the first fixing plate 27, driving the first fixing plate 27, the second fixing plate 28 and the clamped electrode body 2 to rotate synchronously. By controlling the speed and direction of the first servo motor 16, the rotation angle and speed of the electrode body 2 can be adjusted so that the high-pressure water jet from the nozzle 3 can cover different surface areas of the electrode body 2, and comprehensively test the adhesion performance of the electrode body 2 under different orientations. If the adhesion of the electrode body 2 is insufficient, the coating will peel off and the substrate will separate from the coating under the impact of the water flow. The staff can judge whether the adhesion of the electrode body 2 meets the standard by observing these phenomena.

[0055] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0056] The output shaft of the first servo motor 16 is rotatably connected to the housing 1, and the output shaft of the first servo motor 16 is tightly welded to the first fixed plate 27.

[0057] Specifically, it is ensured that the output shaft of the first servo motor 16 can rotate normally within the housing 1 and drive the clamping assembly to rotate, thus ensuring the structural stability of the output shaft of the first servo motor 16 and the first fixed plate 27.

[0058] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0059] The second drive assembly includes a second servo motor 19, which is fixedly installed on the top of the tank 6. A slide bar 22 is provided between the two hard brushes 8. The output shaft of the second servo motor 19 extends through the tank 6 into the filter element 7 and is tightly welded to the connecting rod 20. Springs 21 are symmetrically arranged inside the connecting rod 20. A slide bar 22 is provided on the side of the connecting rod 20 where the two springs 21 are far apart from each other. Both slide bars 22 pass through the connecting rod 20 and are fixed to one side of the two hard brushes 8 respectively.

[0060] The second servo motor 19 outputs power, and its output shaft extends through the tank 6 into the filter element 7, driving the connecting rod 20 to rotate. The springs 21 symmetrically arranged inside the connecting rod 20 push the slide rod 22 to extend outward, so that the hard brush 8 at the end of the slide rod 22 is in close contact with the inner wall of the filter element 7. The rotation of the connecting rod 20 drives the hard brush 8 to rotate synchronously, cleaning the impurities attached to the inner wall of the filter element 7, preventing the impurities from clogging the filter element 7 and affecting the filtration efficiency. The cleaned impurities are separated from the filtered water and can be drawn again by the water pumping pipe 14 of the water supply component.

[0061] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0062] The slide rod 22 is slidably connected to the connecting rod 20, and the two springs 21 are tightly welded to the two slide rods 22 respectively. The two slide rods 22 are tightly welded to the two hard brushes 8 respectively.

[0063] Specifically, it ensures that the slide bar 22 can slide normally within the connecting rod 20, enabling the two hard brushes 8 to press against the filter element 7, and ensures that the two springs 21 and the two slide bars 22 are structurally stable, and that the two slide bars 22 and the two hard brushes 8 are structurally stable.

[0064] This invention provides a testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production. In addition to the above-mentioned technical solutions, it also has the following technical features.

[0065] The top of the housing 1 is provided with a cover plate 9, and the top of the cover plate 9 is symmetrically provided with handles 10. An installation plate 17 is fixedly installed on the inner wall of the housing 1, and several nozzles 3 are fixedly installed on the installation plate 17.

[0066] The cover plate 9 can be closed during testing to prevent water splashing, while facilitating the clamping of the electrode body 2 before testing and the maintenance of the equipment after testing. In addition, the two handles 10 make it convenient for personnel to use and ensure the stability of several nozzles 3.

[0067] Working principle: First, the electrode body 2 is fixed by the clamping assembly, ensuring that the electrode body 2 is stable and uniformly stressed during the detection process. The hydraulic rod 30 outputs power to push one of the welded sliders 33 to slide along the cylinder 34. Since the slider 33 is tightly welded to the sliding buckle 36, the sliding of the slider 33 drives the corresponding sliding buckle 36 to move. The sliding buckle 36 and the rack 35 adopt a "partial welding, partial sliding" method. The rack 35 meshes with the gear 32, so the movement of a single sliding buckle 36 will cause the gear 32 to rotate on the fixed block 31, thereby driving the rack 35 on the other side to move in the opposite direction. This ultimately allows the two sliding buckles 36 to move closer together synchronously. The movement of the sliding buckles 36 causes the two clamping plates 23 to move closer together until the rubber pad 25 on the inner side of the clamping plate 23 is tightly fitted with the electrode body 2, completing the clamping and fixing of the electrode body 2. The rubber pad 25 prevents the clamping plate 23 from damaging the surface of the electrode body 2, while also increasing friction to prevent displacement of the electrode body 2 during subsequent impact tests. Furthermore, the second fixing plate 28 and the first fixing plate 27 are connected by four fixing posts 26, forming a stable clamping structure, which facilitates the subsequent rotation of the electrode body 2. After the electrode body 2 is fixed, the equipment enters the adhesion testing stage. The core is to observe whether the coating of the electrode body 2 is peeled off by impacting the surface of the electrode body 2 with pressurized water flow, so as to judge the strength of the adhesion. At the same time, the first drive component can realize the electrode body 2 under multi-angle force. The pressurized water pump 12 on the first support plate 13 is started, and water is drawn from the tank 6 through the water pumping pipe 14. After the pressurized water pump 12 pressurizes the water, it is delivered to the diversion pipe 18 in the box 1 through the water outlet pipe 11. The diversion pipe 18 evenly distributes the water flow to several nozzles 3 installed on the mounting plate 17. The nozzles 3 spray high-pressure water flow onto the surface of the electrode body 2 to simulate the impact of water flow on the electrode body 2 during the water electrolysis hydrogen production process.

[0068] To avoid biased test results due to impact from a single angle, the first servo motor 16 on the second support plate 15 is activated. Its output shaft passes through the housing 1 and is tightly welded to the first fixing plate 27, driving the first fixing plate 27, the second fixing plate 28, and the clamped electrode body 2 to rotate synchronously. By controlling the speed and direction of the first servo motor 16, the rotation angle and speed of the electrode body 2 can be adjusted, so that the high-pressure water jet from the nozzle 3 can cover different surface areas of the electrode body 2, comprehensively testing the adhesion performance of the electrode body 2 under different orientations. If the adhesion of the electrode body 2 is insufficient, phenomena such as coating peeling and separation of the substrate and coating will occur under the impact of water flow. The operator can judge whether the adhesion of the electrode body 2 meets the standard by observing these phenomena. The water flow after impacting the electrode body 2 will carry electrode debris and impurities that may fall off. The equipment realizes water resource recycling and reuse through a water circulation filtration system, reducing testing costs and wastewater discharge. The water flow and impurities in the housing 1 are removed under the influence of gravity. The water collected at the bottom of the funnel 4 flows into the connecting pipe 5 and is finally delivered into the tank 6. The filter element 7 inside the tank 6 performs preliminary filtration of the water flow, intercepting large particles of impurities. At the same time, the second drive component is activated, and the second servo motor 19 outputs power. Its output shaft extends through the tank 6 into the filter element 7, driving the connecting rod 20 to rotate. The springs 21 symmetrically arranged inside the connecting rod 20 push the slide rod 22 to extend outward, so that the hard brush 8 at the end of the slide rod 22 makes close contact with the inner wall of the filter element 7. The rotation of the connecting rod 20 drives the hard brush 8 to rotate synchronously, cleaning the impurities attached to the inner wall of the filter element 7, preventing impurities from clogging the filter element 7 and affecting the filtration efficiency. The cleaned impurities are separated from the filtered water and can be drawn again by the water supply component's pumping pipe 14 to enter the next round of testing cycle. When the impurities at the bottom of the tank 6 accumulate to a certain extent, the drain valve 37 at the bottom of the tank 6 can be opened to directly discharge the impurities and a small amount of wastewater without removing the cover plate 9, making the operation more convenient and efficient.

[0069] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production, characterized in that, include: A frame (38) is provided with a box (1) fixedly installed on the inner wall of the frame (38). An electrode body (2) is provided inside the box (1). Several nozzles (3) are provided inside the electrode body (2) and on one side of the electrode body (2). A funnel (4) is fixedly installed at the bottom of the box (1). A connecting pipe (5) is fixedly installed at the bottom of the funnel (4). A tank (6) is provided on one side of the box (1). A filter element (7) is fixedly installed inside the tank (6). A hard brush (8) is symmetrically rotated inside the filter element (7). A drain valve (37) is provided at the bottom of the tank (6). A water delivery assembly located on the housing (1) and used to deliver filtered water from the tank (6) to a plurality of nozzles (3); A clamping assembly located inside the housing (1) and used to clamp the electrode body (2); The first driving component is located on the housing (1) and is used to drive the clamping component to rotate; The second drive assembly is located on the tank (6) and is used to drive the two hard brushes (8) to rotate.

2. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 1, characterized in that: The water delivery assembly includes a first support plate (13), which is fixedly installed on one side of the housing (1). A pressurized water pump (12) is fixedly installed on the housing (1). A water inlet pipe (14) is fixedly installed on the inlet end of the pressurized water pump (12). One end of the water inlet pipe (14) passes through the tank (6) and extends into it. A water outlet pipe (11) is fixedly installed on the outlet end of the pressurized water pump (12). One end of the water outlet pipe (11) passes through the housing (1) and is fixedly installed with a diversion pipe (18). Several nozzles (3) are connected to the diversion pipe (18).

3. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 2, characterized in that: A protective shell (24) is fixedly installed on the top of the first bearing plate (13), the pressurized water pump (12) is located inside the protective shell (24), and the water outlet pipe (11) is connected to the diversion pipe (18).

4. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 1, characterized in that: The clamping assembly includes two clamping plates (23). Rubber pads (25) are fixedly installed on the side of the two clamping plates (23) that are close to each other. The electrode body (2) is located between the two rubber pads (25). A second fixing plate (28) is provided on one side of the two clamping plates (23). A fixing block (31) is fixedly installed on the side of the second fixing plate (28) that is close to the two clamping plates (23). A gear (32) is rotatably installed on one side of the fixing block (31). A rack (35) is provided on both the left and right sides of the gear (32). A sliding buckle (36) is sleeved on the upper and lower sides of the gear (32) and on the two racks (35). The second fixing plate (28) and the fixed buckle (36) are mounted on the second fixing plate (28). Both sides of the block (31) are symmetrically fixed with baffles (29), and the corresponding two baffles (29) are symmetrically fixed with cylinders (34). The two corresponding cylinders (34) are slidably mounted with sliders (33). The two sliders (33) are tightly welded to the two sliding buckles (36). The other side of the second fixed plate (28) is fixed with a hydraulic rod (30). One side of one of the sliders (33) passes through the second fixed plate (28) and is tightly welded to the output end of the hydraulic rod (30). The other side of the second fixed plate (28) is provided with a first fixed plate (27). The first fixed plate (27) is fixed to the second fixed plate (28) by four fixed columns (26).

5. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 4, characterized in that: One of the sliding buckles (36) is tightly welded to one of the racks (35), the other sliding buckle (36) is slidably connected to one of the racks (35), the other sliding buckle (36) is tightly welded to another rack (35), one of the sliding buckles (36) is slidably connected to another rack (35), one side of the rubber pad (25) is provided with anti-slip texture, and the gear (32) meshes with the two racks (35).

6. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 1, characterized in that: The first drive assembly includes a second support plate (15), which is fixedly mounted on the housing (1). A first servo motor (16) is fixedly mounted on the second support plate (15). The output shaft of the first servo motor (16) passes through the housing (1) and is fixed to the first fixing plate (27).

7. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 6, characterized in that: The output shaft of the first servo motor (16) is rotatably connected to the housing (1), and the output shaft of the first servo motor (16) is tightly welded to the first fixed plate (27).

8. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 1, characterized in that: The second drive assembly includes a second servo motor (19), which is fixedly installed on the top of the tank (6). A slide bar (22) is provided between the two hard brushes (8). The output shaft of the second servo motor (19) extends through the tank (6) into the filter element (7) and is tightly welded to the connecting rod (20). Springs (21) are symmetrically arranged inside the connecting rod (20). A slide bar (22) is provided inside the connecting rod (20) on the side where the two springs (21) are far apart from each other. Both slide bars (22) pass through the connecting rod (20) and are fixed to one side of the two hard brushes (8) respectively.

9. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 8, characterized in that: The slide rod (22) is slidably connected to the connecting rod (20), the two springs (21) are tightly welded to the two slide rods (22) respectively, and the two slide rods (22) are tightly welded to the two hard brushes (8) respectively.

10. The testing device for detecting the adhesion of electrodes used in water electrolysis hydrogen production as described in claim 1, characterized in that: The top of the box (1) is provided with a cover plate (9), and the top of the cover plate (9) is symmetrically provided with handles (10). An installation plate (17) is fixedly installed on the inner wall of the box (1), and several nozzles (3) are fixedly installed on the installation plate (17).

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