PEM electrolytic tank test board based on test fixture

Abstract

The utility model relates to the field of energy, and discloses a PEM electrolytic cell test board based on a test fixture, which comprises a test platform, a PEM electrolytic cell, a hydrogen storage tank, a water tank, a visual constant current power supply and a control computer, a groove is arranged at the top end of the middle of the test platform, the PEM electrolytic cell is arranged in the groove, and the hydrogen storage tank is arranged in the groove. A control computer is arranged on one side of the top end of the test platform, and a visual constant-current power supply is arranged on one side, deviating from the control computer, of the top end of the test platform; the water purification filter and the resin are used for filtering, impurities and ions are removed, the water quality is kept, the filtered water enters the PEM electrolytic tank again, recycling is achieved, water resources are saved, a computer is controlled, various parameter data such as current, voltage, the generation amount of hydrogen and oxygen, water quality indexes and the like in the electrolysis process are recorded and analyzed in real time, and through data analysis, the water quality can be accurately measured. Performance and stability of the PEM electrolytic cell are evaluated, a basis is provided for optimization design and improvement, and the whole test bench is provided with necessary safety protection measures.

Description

Technical Field

[0001] The utility model relates to the field of energy, in particular to a PEM electrolytic cell test bench based on a test fixture. Background Art

[0002] PEM electrolyzer is the core equipment for manufacturing hydrogen. To ensure the quality and stable working condition of electrolyzer after shipment, the company producing electrolyzer needs to conduct comprehensive tests on pressure, temperature, voltage, current, etc. before the electrolyzer is shipped. However, there are some shortcomings in the existing machines for testing various data of electrolyzers. Traditional testing equipment can only test a single electrolyzer at the same time, and a testing machine can usually only test two to three data parameters of the electrolyzer. This means that to fully evaluate the performance of the electrolyzer, it is necessary to purchase multiple testing machines of different models for separate testing, which is not only cumbersome to operate, but also increases the procurement cost. Due to the functional limitations of a single testing machine, it is often impossible to fully test all key parameters of the electrolyzer, which may lead to inaccurate and incomplete evaluation of the performance of the electrolyzer. Existing testing equipment often has a single function and it is difficult to achieve integrated testing of multiple parameters. This increases the complexity and difficulty of the test. For this reason, we propose a PEM electrolyzer test bench based on a test fixture. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a PEM electrolytic cell test bench based on a test fixture, which solves the above-mentioned problems.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a PEM electrolytic cell test bench based on a test fixture, comprising a test platform, a PEM electrolytic cell, a hydrogen storage tank, a water tank, a visible constant current power supply and a control computer, a groove is provided at the top of the middle part of the test platform, a PEM electrolytic cell is arranged in the groove, a control computer is arranged on one side of the top of the test platform, a visible constant current power supply is arranged on the side of the top of the test platform away from the control computer, a hydrogen storage tank is arranged on the side of the top of the test platform close to the PEM electrolytic cell, and a water tank is arranged on the side of the top of the test platform away from the visible constant current power supply and the control computer.

[0005] Preferably, a water tank support column is provided at one end of the water tank, and the water tank is fixedly mounted together with the test platform through the water tank support column.

[0006] Preferably, the PEM electrolytic cell includes a first fixture, a second fixture, bolts, nuts, a hydrogen gas outlet, an oxygen gas outlet, a water inlet, a positive electrode, and a negative electrode. The first fixture and the second fixture are fixedly installed together by multiple sets of bolts and multiple sets of nuts. Multiple sets of electrolytic media are provided inside the first fixture and the second fixture. The surface of the first fixture is provided with a hydrogen gas outlet and an oxygen gas outlet. The surface of the second fixture is provided with a water inlet. The hydrogen gas outlet, the oxygen gas outlet, and the water inlet are sealed joints, and the other ends of the joints all penetrate and extend into the inside of the first fixture and the second fixture. The top of the PEM electrolytic cell is further provided with a positive electrode and a negative electrode, and the positive electrode and the negative electrode are connected to the media inside the first fixture and the second fixture.

[0007] Preferably, the oxygen gas outlet on the PEM electrolytic cell is connected to the top of the water tank through a pipeline, and an oxygen content sensor is provided in the middle section of the pipeline connecting the oxygen gas outlet and the water tank.

[0008] Preferably, the hydrogen gas storage tank includes a gas-water separator and a hydrogen gas detection sensor. The hydrogen gas detection sensor is provided at the top of the hydrogen gas storage tank. A gas-water separator is provided on one side of the hydrogen gas storage tank close to the PEM electrolytic cell. One side of the top of the gas-water separator is provided with a sealed joint and is connected to the hydrogen gas storage tank through a pipeline. The other side of the top of the gas-water separator is also provided with a sealed joint and is connected to the hydrogen gas outlet on the PEM electrolytic cell through a pipeline. The bottom end of the gas-water separator is connected to the top of the water tank through a pipeline.

[0009] Preferably, the water tank includes a water purification filter, a circulation water pump, an oxygen outlet, a water filling port, a first conductivity sensor, and a second conductivity sensor. The oxygen outlet and the water filling port are provided at the top of the water tank. The water purification filter and the circulation water pump are provided at the bottom end of the water tank. One end of the circulation water pump is connected to the bottom end of the water tank through a pipeline. The other end of the circulation water pump is connected to the water purification filter through a pipeline. A first conductivity sensor is provided in the middle section of the pipeline connecting the circulation water pump and the water purification filter. A second conductivity sensor is provided at one end of the water purification filter. The other end of the water purification filter is connected to the water inlet on the PEM electrolytic cell through a pipeline.

[0010] Preferably, the inside of the water purification filter is filled with resin for filtration.

[0011] Compared with the prior art, the present utility model provides a PEM electrolytic cell test bench based on a test fixture, having the following beneficial effects:

[0012] 1. For the PEM electrolyzer test bench based on a test fixture, a water purification filter filters the resin to remove impurities and ions, maintain water quality, and the filtered water re-enters the PEM electrolyzer to achieve recycling and save water resources.

[0013] 2. For the PEM electrolyzer test bench based on a test fixture, a control computer records and analyzes various parameter data during the electrolysis process in real time, such as current, voltage, production amounts of hydrogen and oxygen, water quality indicators, etc. Through data analysis, the performance and stability of the PEM electrolyzer are evaluated to provide a basis for optimized design and improvement. The entire test bench is equipped with necessary safety protection measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a structural schematic diagram of the PEM electrolyzer of the present utility model;

[0016] Figure 3 is a side three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 4 is a rear three-dimensional structural schematic diagram of the present utility model.

[0018] In the figure: 1. Test platform; 2. PEM electrolyzer; 3. First fixture; 4. Second fixture; 5. Bolt; 6. Nut; 7. Hydrogen gas outlet; 8. Oxygen gas outlet; 9. Water inlet; 10. Positive electrode; 11. Negative electrode; 12. Gas-water separator; 13. Hydrogen gas storage tank; 14. Hydrogen gas detection sensor; 15. Water purification filter; 16. Circulating water pump; 17. Water tank; 18. Oxygen outlet; 19. Water filling port; 20. Oxygen content sensor; 21. First conductivity sensor; 22. Second conductivity sensor; 23. Visual constant current power supply; 24. Control computer; 25. Water tank support column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4, A PEM electrolyzer test bench based on a test fixture, comprising a test platform 1, a PEM electrolyzer 2, a hydrogen gas storage tank 13, a water tank 17, a visual constant current power supply 23 and a control computer 24. A groove is formed at the top of the middle of the test platform 1, and the PEM electrolyzer 2 is arranged in the groove. A control computer 24 is arranged on one side of the top of the test platform 1. A visual constant current power supply 23 is arranged on the side of the top of the test platform 1 away from the control computer 24. A hydrogen gas storage tank 13 is arranged on the side of the top of the test platform 1 close to the PEM electrolyzer 2. A water tank 17 is arranged on the side of the top of the test platform 1 away from the visual constant current power supply 23 and the control computer 24. The control computer 24 records and analyzes various parameter data during the electrolysis process in real time, such as current, voltage, production amounts of hydrogen and oxygen, water quality indicators, etc. Through data analysis, the performance and stability of the PEM electrolyzer are evaluated, providing a basis for optimizing the design and improvement. The entire test bench is equipped with necessary safety protection measures.

[0021] Furthermore, one end of the water tank 17 is provided with a water tank support column 25, and the water tank 17 is fixedly installed on the test platform 1 through the water tank support column 25.

[0022] Furthermore, the PEM electrolyzer 2 includes a first fixture 3, a second fixture 4, bolts 5, nuts 6, a hydrogen gas outlet 7, an oxygen gas outlet 8, a water inlet 9, a positive electrode 10 and a negative electrode 11. The first fixture 3 and the second fixture 4 are fixedly installed together through multiple groups of bolts 5 and multiple groups of nuts 6. Multiple groups of electrolytic media are arranged inside the first fixture 3 and the second fixture 4. A hydrogen gas outlet 7 and an oxygen gas outlet 8 are arranged on the surface of the first fixture 3. A water inlet 9 is arranged on the surface of the second fixture 4. The hydrogen gas outlet 7, the oxygen gas outlet 8 and the water inlet 9 are sealed joints, and the other ends of the joints all penetrate and extend into the inside of the first fixture 3 and the second fixture 4. A positive electrode 10 and a negative electrode 11 are further arranged at the top of the PEM electrolyzer 2, and the positive electrode 10 and the negative electrode 11 are connected to the media inside the first fixture 3 and the second fixture 4.

[0023] Furthermore, the oxygen gas outlet 8 on the PEM electrolyzer 2 is connected to the top of the water tank 17 through a pipeline, and an oxygen content sensor 20 is arranged in the middle section of the pipeline connecting the oxygen gas outlet 8 and the water tank 17.

[0024] Further, the hydrogen storage tank 13 includes a gas-water separator 12 and a hydrogen detection sensor 14. The hydrogen detection sensor 14 is provided at the top of the hydrogen storage tank 13. The gas-water separator 12 is provided on one side of the hydrogen storage tank 13 close to the PEM electrolyzer 2. One side of the top of the gas-water separator 12 is provided with a sealing joint connected to the hydrogen storage tank 13 through a pipeline. The other side of the top of the gas-water separator 12 is also provided with a sealing joint connected to the hydrogen outlet 7 on the PEM electrolyzer 2 through a pipeline. The bottom end of the gas-water separator 12 is connected to the top end of the water tank 17 through a pipeline.

[0025] Further, the water tank 17 includes a water purification filter 15, a circulation water pump 16, an oxygen outlet 18, a water filling port 19, a first conductivity sensor 21 and a second conductivity sensor 22. The oxygen outlet 18 and the water filling port 19 are provided at the top of the water tank 17. The water purification filter 15 and the circulation water pump 16 are provided at the bottom end of the water tank 17. One end of the circulation water pump 16 is connected to the bottom end of the water tank 17 through a pipeline. The other end of the circulation water pump 16 is connected to the water purification filter 15 through a pipeline. The first conductivity sensor 21 is provided in the middle section of the pipeline connecting the circulation water pump 16 and the water purification filter 15. One end of the water purification filter 15 is provided with the second conductivity sensor 22. The other end of the water purification filter 15 is connected to the water inlet 9 on the PEM electrolyzer 2 through a pipeline.

[0026] Further, the inside of the water purification filter 15 is filled with resin for filtration; the circulation water pump 16 sends the water in the water tank 17 into the water purification filter 15 through a pipeline for filtration to remove impurities and ions, maintain the water quality, and the filtered water enters the PEM electrolyzer 2 again to achieve recycling and save water resources.

[0027] Working principle: First, fill the water tank 17 with water. Set the test parameters such as current, voltage, test time, etc. through the control computer 24. The resin in the water purification filter 15 starts to work to ensure that the water quality entering the PEM electrolytic cell 2 meets the test requirements. The PEM electrolytic cell 2 consists of a first fixture 3 and a second fixture 4, with an electrolytic medium filled in the middle. The fixtures are tightly fixed by bolts 5 and nuts 6 to ensure the sealing during the electrolysis process. The positive electrode 10 and the negative electrode 11 are connected to the power supply through a visible constant current power supply 23 to provide a stable electrolysis current. When electrolyzing water, the visible constant current power supply 23 provides a stable current to the PEM electrolytic cell 2 according to the parameters set by the control computer 24. Water enters the PEM electrolytic cell 2 through the water inlet 9 and undergoes an electrolysis reaction under the action of the electrolytic medium, generating hydrogen and oxygen. The hydrogen is discharged through the hydrogen outlet 7, and after removing the possible carried moisture through the gas-liquid separator 12, it enters the hydrogen storage tank 13 for storage. The oxygen is sent into the water tank 17 through the oxygen outlet 18. The hydrogen detection sensor 14 on the top of the hydrogen storage tank 13 monitors the concentration of the stored hydrogen to ensure safety. The oxygen content sensor 20 monitors the water and oxygen content separated from the PEM electrolytic cell 2. The first conductivity sensor 21 and the second conductivity sensor 22 respectively monitor the conductivity of the water entering and leaving the water purification filter 15 to evaluate the water quality and the filtering effect of the resin. The circulating water pump 16 sends the water in the water tank 17 through the pipeline into the water purification filter 15 for filtration to remove impurities and ions and maintain the water quality. The filtered water enters the PEM electrolytic cell 2 again to achieve recycling and save water resources. The control computer 24 records and analyzes various parameter data during the electrolysis process in real time, such as current, voltage, the production amounts of hydrogen and oxygen, water quality indicators, etc. Through data analysis, it evaluates the performance and stability of the PEM electrolytic cell and provides a basis for optimizing the design and improvement. The entire test bench is equipped with necessary safety protection measures such as current overload protection and gas leakage alarm to ensure the safety and reliability of the test process. Through functions such as providing stable electrolysis conditions, real-time monitoring and feedback, circulating purification and data analysis, a comprehensive evaluation and optimization of the performance of the PEM electrolytic cell are achieved.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PEM electrolytic cell test bench based on a test fixture, comprising a test platform (1), a PEM electrolytic cell (2), a hydrogen gas storage tank (13), a water tank (17), a visual constant current power supply (23) and a control computer (24), wherein a groove is provided at the top of the middle portion of the test platform (1), and the PEM electrolytic cell (2) is arranged in the groove, characterized in that: A control computer (24) is arranged on one side of the top of the test platform (1), a visible constant current power supply (23) is arranged on the side of the top of the test platform (1) facing away from the control computer (24), a hydrogen storage tank (13) is arranged on the side of the top of the test platform (1) close to the PEM electrolytic cell (2), and a water tank (17) is arranged on the side of the top of the test platform (1) facing away from the visible constant current power supply (23) and the control computer (24).

2. A PEM electrolytic cell test bench based on a test fixture according to claim 1, characterized in that: A water tank support column (25) is provided at one end of the water tank (17), and the water tank (17) is fixedly mounted together with the test platform (1) via the water tank support column (25).

3. A PEM electrolytic cell test bench based on a test fixture according to claim 1, characterized in that: The PEM electrolytic cell (2) comprises a first clamp (3), a second clamp (4), bolts (5), nuts (6), a hydrogen outlet (7), an oxygen outlet (8), a water inlet (9), a positive electrode (10) and a negative electrode (11); the first clamp (3) and the second clamp (4) are fixed together by multiple groups of bolts (5) and multiple groups of nuts (6); multiple groups of electrolytic media are arranged inside the first clamp (3) and the second clamp (4); the surface of the first clamp (3) is provided with a hydrogen outlet ( The surface of the second fixture (4) is provided with a water inlet (9), the hydrogen outlet (7), the oxygen outlet (8) and the water inlet (9) are sealed joints, and the other ends of the joints extend through the inside of the first fixture (3) and the second fixture (4), and the top of the PEM electrolytic cell (2) is also provided with a positive electrode (10) and a negative electrode (11), and the positive electrode (10) and the negative electrode (11) are connected to the medium inside the first fixture (3) and the second fixture (4).

4. A PEM electrolytic cell test bench based on a test fixture according to claim 3, characterized in that: The oxygen outlet (8) on the PEM electrolytic cell (2) is connected to the top of the water tank (17) via a pipeline, and an oxygen content sensor (20) is provided in the middle section of the pipeline connecting the oxygen outlet (8) and the water tank (17).

5. A PEM electrolytic cell test bench based on a test fixture according to claim 1 or 3, characterized in that: The hydrogen storage tank (13) comprises a gas-water separator (12) and a hydrogen detection sensor (14); the top of the hydrogen storage tank (13) is provided with a hydrogen detection sensor (14); the side of the hydrogen storage tank (13) close to the PEM electrolytic cell (2) is provided with a gas-water separator (12); one side of the top of the gas-water separator (12) is provided with a sealing joint connected to the hydrogen storage tank (13) through a pipeline; the other side of the top of the gas-water separator (12) is also provided with a sealing joint connected to the hydrogen outlet (7) on the PEM electrolytic cell (2) through a pipeline; the bottom of the gas-water separator (12) is connected to the top of a water tank (17) through a pipeline.

6. A PEM electrolytic cell test bench based on a test fixture according to claim 2, characterized in that: The water tank (17) comprises a water purification filter (15), a circulating water pump (16), an oxygen outlet (18), a water inlet (19), a first conductivity sensor (21), and a second conductivity sensor (22). The top of the water tank (17) is provided with an oxygen outlet (18) and a water inlet (19), the bottom of the water tank (17) is provided with a water purification filter (15) and a circulating water pump (16), one end of the circulating water pump (16) is connected to the bottom of the water tank (17) through a pipeline, the other end of the circulating water pump (16) is connected to the water purification filter (15) through a pipeline, the middle section of the connecting pipeline between the circulating water pump (16) and the water purification filter (15) is provided with a first conductivity sensor (21), one end of the water purification filter (15) is provided with a second conductivity sensor (22), and the other end of the water purification filter (15) is connected to a water inlet (9) on a PEM electrolytic cell (2) through a pipeline.

7. A PEM electrolytic cell test bench based on a test fixture according to claim 6, characterized in that: The interior of the water purification filter (15) is filled with resin for filtering.

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