Multi-channel PEM water electrolysis hydrogen production test equipment

Abstract

The utility model provides multi-channel PEM water electrolysis hydrogen production test equipment, which relates to the technical field of water electrolysis, and comprises an electrolytic bath main body, an electrolysis unit main body is arranged on the inner wall of the electrolytic bath main body, the surface of the electrolytic bath main body is communicated with a connecting pipe, and one end of the connecting pipe is communicated with a vertical pipe. Through the linkage mechanism of the buoy and the blocking column, automatic drainage control in the pure water injection process is achieved, when the pure water is added too much, the buoy ascends and drives the top plate and the blocking column to move, redundant pure water is automatically drained through the connecting pipe and the liquid drainage pipe, manual intervention is avoided, and the safety is improved. The device can effectively prevent pure water in the electrolytic bath from being excessive, ensure the stability and safety of the water level in the electrolysis process, prevent overflow and equipment damage caused by excessive water injection, realize water level control through linkage of a pure mechanical buoy, a top plate, a disc and a blocking column, do not need an electric control device, reduce the complexity and maintenance cost, and improve the working efficiency. And the reliability and the durability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water electrolysis, in particular to a multi-channel PEM water electrolysis hydrogen production testing device. Background Art

[0002] The electrolyzer consists of a cell body, an anode and a cathode. Most of them use a diaphragm to separate the anode chamber and the cathode chamber. According to the different electrolytes, they are divided into three categories: aqueous solution electrolyzer, molten salt electrolyzer and non-aqueous solution electrolyzer. When direct current passes through the electrolyzer, an oxidation reaction occurs at the interface between the anode and the solution, and a reduction reaction occurs at the interface between the cathode and the solution to produce the desired product. At present, the more mature PEM electrolyzer plates at home and abroad are generally made of metal (titanium) materials. In electrolysis technology, PEM electrolyzer is an important equipment for pure water electrolysis to produce hydrogen, and plays an indispensable and important role.

[0003] Publication No. CN220926965U discloses a pure water hydrogen production PEM electrolyzer, comprising: an electrolyzer body and an electrolysis unit body, and also comprising an installation adjustment structure installed between the electrolysis unit body and the electrolyzer body; the installation adjustment structure comprises: a slider, the slider is provided with two groups, respectively installed on both sides of the electrolysis unit body, the bottom end of the slider is provided with a slide groove, and the inner wall of the slide groove is slidably connected to the top of the side wall of the electrolyzer body. Although this kind of PEM electrolyzer drives the electrolysis unit body to move through the insertion frame, adjusts the distance between two adjacent electrolysis unit bodies, and expands the scope of use. However, in the operation of this kind of PEM electrolyzer, excessive water injection will cause pure water to overflow, which not only causes a waste of precious water resources, but also may cause serious damage to the electrolysis equipment. Specifically, the overflowed pure water will penetrate into the internal components of the equipment, causing problems such as short circuit, electrical failure or corrosion, thereby shortening the service life of the equipment. In addition, after the pure water overflows, it will flow to the ground around the equipment, increasing the difficulty and complexity of the cleaning work. Operators need to spend extra time and effort to clean up these spills. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a multi-channel PEM water electrolysis hydrogen production testing equipment, including an electrolytic cell main body, an electrolytic unit main body is installed on the inner wall of the electrolytic cell main body, a connecting pipe is connected to the surface of the electrolytic cell main body, one end of the connecting pipe is connected to a vertical pipe, the surface of the vertical pipe is connected to a drainage pipe, a blocking column is slidably connected to the inner wall of the vertical pipe, a disc is fixedly installed on the top of the blocking column, a top plate is fixedly installed on the top surface of the disc, and a buoy is fixedly installed on the bottom surface of the top plate.

[0006] Preferably, the electrolysis unit bodies are arranged at equal distances on the inner wall of the electrolytic cell body, and a proton exchange membrane is installed on the surface of the electrolysis unit bodies.

[0007] Preferably, the buoy is located inside the electrolytic cell body.

[0008] Preferably, a drainage mechanism is provided on the side of the electrolytic cell body, and the drainage mechanism includes a mounting block, the mounting block is fixedly mounted on the side of the electrolytic cell body, a vertical rod is fixedly mounted on the top surface of the mounting block, a threaded rod is rotatably connected to the top surface of the mounting block, a movable plate is sleeved on the surface of the threaded rod and the vertical rod, a rotating shaft is rotatably connected to the side of the electrolytic cell body, a connecting plate is fixedly mounted on one end of the rotating shaft, a telescopic plate is slidably connected to one end of the connecting plate, a side rod is fixedly mounted on the other end of the connecting plate, and a support frame is fixedly mounted on one end of the side rod. Here, the drainage effect can be improved.

[0009] Preferably, the movable plate interferes with the motion of the disc, and the telescopic plate is rotatably connected to the movable plate.

[0010] Preferably, the movable plate is provided with threads inside, and the threads are meshed with the threaded rod.

[0011] Preferably, the vertical rod is slidably connected to the movable plate, and the movable plate is an "L"-shaped structure.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. The utility model realizes automatic drainage control during the pure water injection process through the linkage mechanism of the buoy and the plugging column. When the amount of pure water added is too much, the buoy rises and drives the top plate and the plugging column to move, so that the excess pure water is automatically discharged through the connecting pipe and the drain pipe, avoiding human intervention, and can effectively prevent excessive pure water in the electrolytic cell, ensure the stability and safety of the water level during the electrolysis process, and prevent overflow and equipment damage caused by excessive water injection. The water level control is achieved through the linkage of the purely mechanical buoy, top plate, disc and plugging column, without the need for an electronic control device, reducing complexity and maintenance costs, and improving reliability and durability.

[0014] 2. The utility model realizes automatic drainage control of pure water through the linkage mechanism of threaded rod, movable plate, disc and blocking column. The drain pipe can be automatically opened by twisting the threaded rod, and the upward movement of the movable plate can also drive the inclination of the electrolytic cell body, so that the electrolytic cell body is inclined toward the drain pipe. This design can make full use of gravity, speed up the emptying speed of pure water, improve the emptying effect, ensure that there is no residual liquid in the cell, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A schematic diagram of a multi-channel PEM water electrolysis hydrogen production test device is proposed for the utility model;

[0016] Figure 2 A cross-sectional view of a multi-channel PEM water electrolysis hydrogen production test device is proposed for the utility model;

[0017] Figure 3 The utility model provides a rear view of a multi-channel PEM water electrolysis hydrogen production test device;

[0018] Figure 4 A multi-channel PEM water electrolysis hydrogen production test equipment is proposed for this utility model Figure 3 Enlarged view of point A in the middle.

[0019] Legend:

[0020] 1. Electrolytic cell body; 2. Electrolytic unit body; 3. Connecting pipe; 4. Vertical pipe; 5. Drain pipe; 6. Blocking column; 7. Disc; 8. Top plate; 9. Float; 10. Mounting block; 11. Threaded rod; 12. Vertical rod; 13. Moving plate; 14. Rotating shaft; 15. Connecting plate; 16. Telescopic plate; 17. Side rod; 18. Support frame. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] See also Figure 1-4 The utility model provides a technical solution: a multi-channel PEM water electrolysis hydrogen production test device, including an electrolytic cell body 1, an electrolytic unit body 2 is installed on the inner wall of the electrolytic cell body 1, and the electrolytic unit body 2 is arranged at equal distances on the inner wall of the electrolytic cell body 1. A proton exchange membrane is installed on the surface of the electrolytic unit body 2. The proton exchange membrane is made of high-strength, corrosion-resistant fluorinated polymer material to ensure efficient proton conduction during electrolysis and has excellent chemical resistance and mechanical strength. The electrolytic unit body 2 is fixed to the inner wall of the electrolytic cell body 1 by bolts. This connection method can ensure the stability of the electrolytic unit body 2 in the electrolytic cell and is easy to disassemble and maintain.

[0025] See also Figure 1-4 The surface of the electrolyzer body 1 is connected with a connecting pipe 3, one end of the connecting pipe 3 is connected with a vertical pipe 4, and the surface of the vertical pipe 4 is connected with a drain pipe 5. The connecting pipe 3, the vertical pipe 4, and the drain pipe 5 are connected by flange connection or welding to ensure stability and sealing under high pressure environment and prevent liquid leakage. The inner wall of the vertical pipe 4 is slidably connected with a blocking column 6, and a disc 7 is fixedly installed on the top of the blocking column 6. A top plate 8 is fixedly installed on the top surface of the disc 7, and a buoy 9 is fixedly installed on the bottom surface of the top plate 8. The buoy 9 is located in the electrolyzer body 1. The buoy 9 is made of high-density polyethylene material, has good buoyancy and corrosion resistance, and ensures its stable floating in pure water. In the actual working process, pure water is injected into the electrolyzer body 1, and then electrolysis is performed through the electrolysis unit body 2. The proton exchange membrane of the electrolysis unit body 2 can effectively separate hydrogen and oxygen during the electrolysis process to ensure the generation of high-purity hydrogen. The electrolytic cell body 1 is designed with the injection and discharge of pure water in mind, and automatic drainage control is achieved through the linkage mechanism of the buoy 9 and the plugging column 6. When too much pure water is added, the buoy 9 will rise, driving the top plate 8 and the disc 7 to move upward, and then pushing the plugging column 6 away from the connecting pipe 3, so that the excess pure water is automatically discharged through the vertical pipe 4 and the drainage pipe 5. The drainage pipe 5 is made of stainless steel or corrosion-resistant plastic material to ensure its durability and corrosion resistance in long-term use.

[0026] Embodiment 2

[0027] See also Figure 3-4, a drainage mechanism is arranged on the side of the electrolytic cell body 1, and the drainage mechanism includes a mounting block 10, and the mounting block 10 is fixed on the side of the electrolytic cell body 1 by welding to ensure the firmness and durability of its installation. A vertical rod 12 is fixedly installed on the top surface of the mounting block 10, and the vertical rod 12 is made of stainless steel material and has good corrosion resistance. A threaded rod 11 is rotatably connected to the top surface of the mounting block 10, and the threaded rod 11 is made of high-strength steel and has wear resistance and corrosion resistance. The surface of the threaded rod 11 and the vertical rod 12 is sleeved with a moving plate 13, and the moving plate 13 is made of high-strength plastic or aluminum alloy material, which is light and durable. The moving plate 13 is an "L"-shaped structure, with a threaded interior, and the threaded thread is meshed with the threaded rod 11 to ensure its stability and accuracy during rotation. The moving plate 13 interferes with the movement of the disc 7. Such a design ensures that when it is necessary to drain pure water, the moving plate 13 can be driven to move upward by rotating the threaded rod 11, thereby pushing the disc 7 and the blocking column 6 away from the connecting pipe 3 to achieve the drainage function. The side of the electrolytic cell body 1 is rotatably connected with a rotating shaft 14, which is made of high-strength alloy steel material and has high strength and wear resistance. A connecting plate 15 is fixedly installed at one end of the rotating shaft 14, and the connecting plate 15 is fixed to the rotating shaft 14 by bolts to ensure its stability and reliability during rotation. A telescopic plate 16 is slidably connected to one end of the connecting plate 15, and the telescopic plate 16 is made of aluminum alloy material and has good strength and corrosion resistance. The telescopic plate 16 is rotatably connected to the movable plate 13 to ensure that when the movable plate 13 moves upward, it can drive the telescopic plate 16 to move synchronously. A side rod 17 is fixedly installed at the other end of the connecting plate 15, and the side rod 17 is fixed to the connecting plate 15 by welding to ensure its stability during movement. A support frame 18 is fixedly installed at one end of the side rod 17, and the support frame 18 is made of high-strength steel and has good bearing capacity and stability.

[0028] Working principle: pure water is injected into the electrolytic cell body 1, and then electrolysis can be carried out through the electrolytic unit body 2. At the same time, when adding pure water, if the amount of pure water added is too much, it will drive the buoy 9 to float upward, and the buoy 9 can then drive the top plate 8 to move, and the top plate 8 then drives the disc 7 and the blocking column 6 to move upward until the blocking column 6 leaves the connecting pipe 3. At this time, the connecting pipe 3 is connected with the vertical pipe 4 and the drainage pipe 5, and then the excess pure water flows out. After the pure water is discharged, the buoy 9 can be synchronously lowered until the blocking column 6 blocks the connecting pipe 3 again. The utility model realizes the linkage mechanism of the buoy 9 and the blocking column 6. Automatic drainage control during pure water injection. When too much pure water is added, the buoy 9 rises and drives the top plate 8 and the plugging column 6 to move, so that the excess pure water is automatically discharged through the connecting pipe 3 and the drainage pipe 5, avoiding manual intervention, and can effectively prevent excessive pure water in the electrolytic cell, ensure the stability and safety of the water level during the electrolysis process, and prevent overflow and equipment damage caused by excessive water injection. The water level control is achieved through the linkage of the purely mechanical buoy 9, the top plate 8, the disc 7 and the plugging column 6, without the need for an electronic control device, reducing complexity and maintenance costs, and improving reliability and durability. When the pure water needs to be drained, the worker The operator only needs to twist the threaded rod 11. At this time, since the movable plate 13 is provided with a thread, the threaded rod 11 can drive the movable plate 13 to move upward. When the movable plate 13 moves upward, it can push the disc 7 upward to move. The disc 7 can then drive the blocking column 6 to leave the connecting pipe 3. At this time, the water can be discharged through the vertical pipe 4 and the drainage pipe 5. At the same time, during the upward movement of the movable plate 13, it can also drive the connecting plate 15 to rotate. The connecting plate 15 itself can rotate counterclockwise through the rotating shaft 14. The connecting plate 15 can then drive the supporting frame 18 to rotate counterclockwise through the side rod 17. The supporting frame 18 rotates counterclockwise. When the hour hand rotates, it can prop up the back of the electrolytic cell body 1, so that the electrolytic cell body 1 can be tilted toward the drain pipe 5, thereby improving the emptying effect. The utility model realizes automatic drainage control of pure water through the linkage mechanism of the threaded rod 11, the movable plate 13, the disc 7 and the blocking column 6. Only by twisting the threaded rod 11 can the drain pipe 5 be automatically opened, and the upward movement of the movable plate 13 can also drive the inclination of the electrolytic cell body 1, so that the electrolytic cell body 1 is tilted toward the drain pipe 5. This design can make full use of gravity, speed up the emptying speed of pure water, improve the emptying effect, and ensure that there is no residual liquid in the tank.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A multi-channel PEM water electrolysis hydrogen production test device, comprising an electrolyzer body (1), characterized in that: An electrolytic cell body (2) is installed on the inner wall of the electrolytic cell body (1); The surface of the electrolytic cell body (1) is connected to a connecting pipe (3); One end of the connecting pipe (3) is connected to a vertical pipe (4); The surface of the vertical pipe (4) is connected to a liquid discharge pipe (5); The inner wall of the vertical pipe (4) is slidably connected with a blocking column (6); A disc (7) is fixedly mounted on the top of the blocking column (6); A top plate (8) is fixedly mounted on the top surface of the disc (7); A buoy (9) is fixedly mounted on the bottom surface of the top plate (8).

2. The multi-channel PEM water electrolysis hydrogen production test equipment according to claim 1, characterized in that: The electrolytic unit bodies (2) are arranged at equal distances on the inner wall of the electrolytic cell body (1); A proton exchange membrane is installed on the surface of the electrolysis unit body (2).

3. The multi-channel PEM water electrolysis hydrogen production test equipment according to claim 1, characterized in that: The buoy (9) is located inside the electrolytic cell body (1).

4. The multi-channel PEM water electrolysis hydrogen production test equipment according to claim 1, characterized in that: A drainage mechanism is provided on the side of the electrolytic cell body (1); The drainage mechanism comprises a mounting block (10), wherein the mounting block (10) is fixedly mounted on a side of the electrolytic cell body (1); A vertical rod (12) is fixedly mounted on the top surface of the mounting block (10); The top surface of the mounting block (10) is rotatably connected to a threaded rod (11); The surfaces of the threaded rod (11) and the vertical rod (12) are sleeved with a movable plate (13); A rotating shaft (14) is rotatably connected to the side of the electrolytic cell body (1); A connecting plate (15) is fixedly mounted on one end of the rotating shaft (14); One end of the connecting plate (15) is slidably connected to a telescopic plate (16); A side rod (17) is fixedly mounted on the other end of the connecting plate (15); A support frame (18) is fixedly mounted on one end of the side rod (17).

5. The multi-channel PEM water electrolysis hydrogen production test equipment according to claim 4, characterized in that: The moving plate (13) interferes with the movement of the disc (7); The telescopic plate (16) is rotatably connected to the movable plate (13).

6. The multi-channel PEM water electrolysis hydrogen production test equipment according to claim 4, characterized in that: The movable plate (13) is provided with a thread inside, and the thread is meshed with the threaded rod (11).

7. The multi-channel PEM water electrolysis hydrogen production testing equipment according to claim 4, characterized in that: The vertical rod (12) is slidably connected to the movable plate (13); The movable plate (13) is an "L"-shaped structure.

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