Electrolytic tank device based on spatial structure electrode in PEM hydrogen production system
By using foam nickel space structure electrodes in the electrolytic cell device and clamping the proton exchange membrane through tight fit, the efficiency reduction and instability problems caused by loose contact between the electrode plate and the proton exchange membrane are solved, and more efficient hydrogen gas is achieved Generate and more stable electrolytic cell operation.
Patent Information
- Application Number
- CN202420476448.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-03-12
AI Technical Summary
In existing electrolytic cell devices, loose contact between the electrode plate and the proton exchange membrane leads to a decrease in the electrocatalytic reaction efficiency, slowing down the rate of hydrogen production, and may lead to gas leakage and increased electrolytic cell instability.
The foam nickel space structure electrode is adopted to clamp the proton exchange membrane between the positive electrode sheet and the negative electrode sheet through tight bonding, enhancing the physical connection between the electrode plate and the proton exchange membrane to ensure close contact.
It improves the efficiency of electrocatalytic reaction, increases the rate of hydrogen production, enhances the physical connection between the electrode plate and the proton exchange membrane, reduces the possibility of gas leakage, and improves the long-term stability and reliability of the electrolytic cell.
Smart Images
Figure CN222512976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electrolyzer devices, in particular to an electrolyzer device based on space structure electrodes in a PEM hydrogen production system. Background Art
[0002] The space structure electrode is a specially designed electrode structure used in the electrode area of the electrochemical reaction or electrolysis process. The space structure electrode is widely used in many fields, such as electrolysis of water to produce hydrogen, batteries, capacitors, etc. By making full use of its high surface area, mass transfer efficiency and electronic conductivity, the space structure electrode can provide higher performance and efficiency. The nickel foam electrode is a kind of space structure electrode. It is made of metal nickel into a foam sponge through high-tech deep processing. It has a three-dimensional fully through-mesh structure. At the same time, the porous structure has wide-frequency sound absorption characteristics, can be cut, bent, and simply pasted, and has strong thermal conductivity.
[0003] However, the electrode plates and proton exchange membranes installed in some electrolyzer devices are not in contact. The loose contact between the electrode plates and the proton exchange membrane will reduce the effective electrode surface and proton exchange area, resulting in a decrease in the efficiency of the electrocatalytic reaction, which will reduce the rates of redox reactions and water decomposition reactions, thereby affecting the hydrogen production rate. The loose contact may cause the physical connection between the electrode plates and the proton exchange membrane to be loose, which may easily cause gaps or separations between the electrode plates and the membrane, which may lead to gas leakage and increased instability of the electrolyzer, affecting its long-term operating reliability.
[0004] Therefore, those skilled in the art provide an electrolyzer device based on a spatial structure electrode in a PEM hydrogen production system to solve the problems raised in the above background technology. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an electrolyzer device based on a space structure electrode in a PEM hydrogen production system. Compared with some existing electrolyzer devices, the positive electrode sheet and the negative electrode sheet provided in the electrolyzer device are foam nickel space structure electrodes, and the proton exchange membrane is clamped between the positive electrode sheet and the negative electrode sheet in a tightly fitting manner. The close contact between the electrode plate and the proton exchange membrane can increase the area of the electrode surface and the proton exchange, improve the efficiency of the electrocatalytic reaction, thereby more effectively promoting the redox reaction and the decomposition reaction of water, and increasing the hydrogen production rate. The close contact can enhance the physical connection between the electrode plate and the proton exchange membrane, making it more firm and stable, thereby more effectively preventing the loosening or falling off between the electrode plate and the proton exchange membrane, thereby reducing the possibility of gas leakage, and improving the long-term stability and reliability of the electrolyzer.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrolyzer device based on a spatial structure electrode in a PEM hydrogen production system, comprising a main body, observation glasses are fixedly connected to both sides of the upper part of the front end outer wall of the main body, a placement groove is opened at the center of the upper surface of the main body, and the inner walls of the placement groove are fixedly connected with an isolation layer, a positive electrode sheet, a proton exchange membrane and a negative electrode sheet are fixedly connected at the front end of the placement groove and the center of the fixed inner wall, respectively, fixing rings are fixedly connected to the upper ends of the two sides of the main body and the rear end outer wall, a sealing gasket is fixedly connected to the periphery of the upper surface of the main body, a first flange is fixedly connected to the upper end of the outer wall of the main body, a top cover is fixedly connected to the upper surface of the main body, exhaust ports are fixedly connected to the middle parts of both sides of the upper surface of the top cover, a second flange is fixedly connected to the lower end of the outer wall of the top cover, and a plurality of second bolts are threadedly connected to the upper surface of the second flange.
[0007] Through the above technical solution, compared with some existing electrolytic cell devices, the electrolytic cell device is provided with multiple clamping plates in the placement tank, and the rubber gasket is used to clamp and fix the proton exchange membrane through the first bolt, and then the positive electrode sheet and the negative electrode sheet are fixed on both sides of the proton exchange membrane in the same way, so that the user can quickly and easily disassemble and install the positive and negative electrode sheets and the proton exchange membrane, and then the user can easily maintain the positive and negative electrode sheets or replace the proton exchange membrane. Maintenance can help remove accumulations such as dirt, salts or impurities, and keep the proton exchange membrane and electrode plates clean, thereby improving the efficiency and performance of the electrolytic cell.
[0008] Furthermore, two clamping plates are fixedly connected to the middle of the inner wall at the front end and the rear end of the placement groove, a plurality of rubber gaskets are fixedly connected to the inner wall of the clamping plate, and a plurality of first bolts are threadedly connected to the outer wall of the clamping plate;
[0009] Through the above technical solution, the user can conveniently perform maintenance on the positive electrode sheet and the negative electrode sheet or replace the proton exchange membrane by turning the first bolt.
[0010] Furthermore, a control cabinet is fixedly connected to one side of the lower part of the front outer wall of the main body, a power interface is fixedly connected to the middle part of the outer wall of one side of the control cabinet, and an electric wire is fixedly connected to the front end inside the main body;
[0011] Through the above technical solution, the control cabinet can transmit the power connected to the power interface to the positive electrode sheet and the negative electrode sheet through the wires.
[0012] Furthermore, a water tank is fixedly connected to the lower end of the outer wall on one side of the main body, and a slot is provided in the middle of the upper surface of the water tank away from the main body;
[0013] Through the above technical solution, the user can inject electrolyte into the water tank through the card slot.
[0014] Furthermore, a cover plate is hingedly connected to the side of the upper surface of the water tank away from the main body, and a handle is fixedly connected to the side of the upper surface of the cover plate away from the main body;
[0015] Through the above technical solution, the user can open and close the cover by the handle.
[0016] Furthermore, a chamber is provided inside the water tank, and a water pump is fixedly connected to the center of the inner bottom surface of the chamber;
[0017] Through the above technical solution, the electrolyte in the water tank can be transported to the placement tank through the water pump.
[0018] Furthermore, the water outlet of the water pump is fixedly connected to a first fluid delivery pipe, and the water inlet of the water pump is fixedly connected to a second fluid delivery pipe;
[0019] Through the above technical solution, the water pump can transport the electrolyte in the water tank to the shunt pipe through the second flow pipe and the first flow pipe.
[0020] Furthermore, a shunt pipe is fixedly connected to the upper surface of the first fluid delivery pipe, and a valve is fixedly connected to the outer wall of the shunt pipe;
[0021] Through the above technical solution, the user can control the flow rate of the shunt pipe through the valve.
[0022] The utility model has the following beneficial effects:
[0023] 1. The utility model proposes an electrolyzer device based on a space structure electrode in a PEM hydrogen production system. Compared with some existing electrolyzer devices, the positive electrode sheet and the negative electrode sheet provided in the electrolyzer device are nickel foam space structure electrodes. The proton exchange membrane is clamped between the positive electrode sheet and the negative electrode sheet in a tightly fitting manner. The close contact between the electrode plate and the proton exchange membrane can increase the area of the electrode surface and the proton exchange, improve the efficiency of the electrocatalytic reaction, thereby more effectively promoting the redox reaction and the water decomposition reaction, and increasing the hydrogen production rate. The close contact can enhance the physical connection between the electrode plate and the proton exchange membrane, making it more firm and stable, thereby more effectively preventing the loosening or falling off between the electrode plate and the proton exchange membrane, thereby reducing the possibility of gas leakage, and improving the long-term stability and reliability of the electrolyzer.
[0024] 2. The utility model proposes an electrolyzer device based on a spatial structure electrode in a PEM hydrogen production system. Compared with some existing electrolyzer devices, the electrolyzer device is provided with multiple clamping plates in the placement tank. The rubber gasket is clamped and fixed to the proton exchange membrane by the first bolt, and the positive electrode sheet and the negative electrode sheet are fixed to the two sides of the proton exchange membrane in the same way, so that the user can quickly and easily disassemble and install the positive and negative electrode sheets and the proton exchange membrane, and then the user can easily maintain the positive and negative electrode sheets or replace the proton exchange membrane. Maintenance can help remove accumulations such as dirt, salts or impurities, and keep the proton exchange membrane and electrode plates clean, thereby improving the efficiency and performance of the electrolyzer.
[0025] 3. The utility model proposes an electrolyzer device based on a spatial structure electrode in a PEM hydrogen production system. Compared with some existing electrolyzer devices, the electrolyzer device is provided with a top cover on the main body. The user can disassemble the cover by turning the second bolt, so that the placement tank can be cleaned more conveniently, thereby improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a structural schematic diagram of an electrolyzer device based on a space structure electrode in a PEM hydrogen production system proposed by the utility model;
[0027] Figure 2 This is a schematic diagram of the main structure of an electrolyzer device based on a space structure electrode in a PEM hydrogen production system proposed by the utility model;
[0028] Figure 3 This is a schematic diagram of the water tank structure of an electrolyzer device based on a space structure electrode in a PEM hydrogen production system proposed by the utility model;
[0029] Figure 4 This is a main cross-sectional view of an electrolyzer device based on a space structure electrode in a PEM hydrogen production system proposed by the utility model;
[0030] Figure 5 This is a schematic diagram of the clamping plate structure of an electrolyzer device based on a spatial structure electrode in a PEM hydrogen production system proposed by the utility model.
[0031] Legend:
[0032] 1. Main body; 2. Control cabinet; 3. Power interface; 4. Observation glass; 5. Water tank; 6. Card slot; 7. Cover; 8. Handle; 9. Chamber; 10. Water pump; 11. First fluid delivery pipe; 12. Second fluid delivery pipe; 13. Diverter pipe; 14. Valve; 15. Placement groove; 16. Isolation layer; 17. Clamping plate; 18. Rubber gasket; 19. Positive electrode sheet; 20. Proton exchange membrane; 21. Negative electrode sheet; 22. First bolt; 23. Fixing ring; 24. First flange; 25. Sealing gasket; 26. Top cover; 27. Exhaust port; 28. Second flange; 29. Second bolt; 30. Wires. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0034] Reference Figure 1-5 The utility model provides an embodiment: an electrolyzer device based on a space structure electrode in a PEM hydrogen production system, comprising a main body 1, both sides of the upper part of the front end outer wall of the main body 1 are fixedly connected with an observation glass 4, a placement groove 15 is opened at the center of the upper surface of the main body 1, and the inner wall of the placement groove 15 is fixedly connected with an isolation layer 16, and the front end of the placement groove 15 and the center of the fixed inner wall are respectively fixedly connected with a positive electrode sheet 19, a proton exchange membrane 20 and a negative electrode sheet 21, both sides of the main body 1 and the upper end of the rear end outer wall are fixedly connected with a fixing ring 23, the periphery of the upper surface of the main body 1 is fixedly connected with a sealing gasket 25, and the upper end of the outer wall of the main body 1 is fixedly connected with a first flange 2 4. A top cover 26 is fixedly connected to the upper surface of the main body 1, and exhaust ports 27 are fixedly connected to the middle of both sides of the upper surface of the top cover 26. A second flange 28 is fixedly connected to the lower end of the outer wall of the top cover 26, and a plurality of second bolts 29 are threadedly connected to the upper surface of the second flange 28. Two clamping plates 17 are fixedly connected to the middle of the inner wall of the front end and the rear end of the placement groove 15, and a plurality of rubber gaskets 18 are fixedly connected to the inner wall of the clamping plate 17, and a plurality of first bolts 22 are threadedly connected to the outer wall of the clamping plate 17, so that the user can conveniently maintain the positive electrode sheet 19 and the negative electrode sheet 21 or replace the proton exchange membrane 20 by turning the first bolts 22.
[0035] Compared with some existing electrolyzer devices, the positive electrode sheet 19 and the negative electrode sheet 21 provided in this electrolyzer device are nickel foam space structure electrodes. The proton exchange membrane 20 is clamped between the positive electrode sheet 19 and the negative electrode sheet 21 in a tightly fitting manner. The close contact between the electrode plate and the proton exchange membrane 20 can increase the area of the electrode surface and the proton exchange, improve the efficiency of the electrocatalytic reaction, thereby more effectively promoting the redox reaction and the water decomposition reaction, and increasing the hydrogen production rate. The close contact can enhance the physical connection between the electrode plate and the proton exchange membrane 20, making it more firm and stable, thereby more effectively preventing the loosening or falling off between the electrode plate and the proton exchange membrane 20, thereby reducing the possibility of gas leakage, and improving the long-term stability and reliability of the electrolyzer.
[0036] A control cabinet 2 is fixedly connected to one side of the lower part of the front end outer wall of the main body 1, a power interface 3 is fixedly connected to the middle part of the outer wall of one side of the control cabinet 2, and a wire 30 is fixedly connected to the front end inside the main body 1, so that the control cabinet 2 can transmit the power connected to the power interface 3 to the positive electrode sheet 19 and the negative electrode sheet 21 through the wire 30, and a water tank 5 is fixedly connected to the lower end of the outer wall of one side of the main body 1, and a card slot 6 is provided in the middle part of the upper surface of the water tank 5 away from the main body 1, so that the user can inject electrolyte into the water tank 5 through the card slot 6, and a cover plate 7 is hingedly connected to the side of the upper surface of the water tank 5 away from the main body 1, and a handle 8 is fixedly connected to the side of the upper surface of the cover plate 7 away from the main body 1, so that the user can pass The handle 8 is used to open and close the cover 7. A chamber 9 is provided inside the water tank 5. A water pump 10 is fixedly connected to the center of the bottom surface of the chamber 9, so that the electrolyte in the water tank 5 can be transported to the placement groove 15 through the water pump 10. The water outlet of the water pump 10 is fixedly connected to a first flow pipe 11, and the water inlet of the water pump 10 is fixedly connected to a second flow pipe 12, so that the water pump 10 can transport the electrolyte in the water tank 5 to the shunt pipe 13 through the second flow pipe 12 and the first flow pipe 11. The upper surface of the first flow pipe 11 is fixedly connected to the shunt pipe 13, and the outer wall of the shunt pipe 13 is fixedly connected to a valve 14, so that the user can control the flow rate of the shunt pipe 13 through the valve 14.
[0037] Working principle: When the device needs to be used, firstly, the proton exchange membrane 20, the positive electrode sheet 19 and the negative electrode sheet 21 are clamped and fixed on the clamping plate 17 by the first bolt 22 and the rubber gasket 18, and then the water pump 10 is controlled by the control cabinet 2 to inject electrolyte into the placement tank 15, and then the electrolyte height on both sides of the placement tank 15 is adjusted by the observation glass 4 and the valve 14, and the positive electrode sheet 19 and the negative electrode sheet 21 are started by the control cabinet 2 to react with the electrolyte in the placement tank 15.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An electrolyzer device based on a spatial structure electrode in a PEM hydrogen production system, comprising a main body (1), characterized in that: Observation glasses (4) are fixedly connected to both sides of the upper part of the front end outer wall of the main body (1); a placement groove (15) is opened at the center of the upper surface of the main body (1); the inner wall of the placement groove (15) is fixedly connected to an isolation layer (16); the front end of the placement groove (15) and the center of the fixed inner wall are respectively fixedly connected to a positive electrode sheet (19), a proton exchange membrane (20) and a negative electrode sheet (21); both sides of the main body (1) and the upper end of the rear end outer wall are fixedly connected to a fixing ring (23); the periphery of the upper surface of the main body (1) is fixedly connected to a sealing gasket (25); the upper end of the outer wall of the main body (1) is fixedly connected to a first flange (24); the upper surface of the main body (1) is fixedly connected to a top cover (26); the middle parts of both sides of the upper surface of the top cover (26) are fixedly connected to exhaust ports (27); the lower end of the outer wall of the top cover (26) is fixedly connected to a second flange (28); the upper surface of the second flange (28) is threadedly connected to a plurality of second bolts (29).
2. The electrolyzer device based on a space structure electrode in a PEM hydrogen production system according to claim 1, characterized in that: Two clamping plates (17) are fixedly connected to the middle of the inner wall of the front end and the rear end of the placement groove (15), a plurality of rubber gaskets (18) are fixedly connected to the inner wall of the clamping plate (17), and a plurality of first bolts (22) are threadedly connected to the outer wall of the clamping plate (17).
3. The electrolyzer device based on a space structure electrode in a PEM hydrogen production system according to claim 1, characterized in that: A control cabinet (2) is fixedly connected to one side of the lower portion of the front outer wall of the main body (1), a power supply interface (3) is fixedly connected to the middle portion of the outer wall of one side of the control cabinet (2), and an electric wire (30) is fixedly connected to the front end inside the main body (1).
4. The electrolyzer device based on a space structure electrode in a PEM hydrogen production system according to claim 1, characterized in that: A water tank (5) is fixedly connected to the lower end of the outer wall of one side of the main body (1), and a slot (6) is provided in the middle of the upper surface of the water tank (5) away from the main body (1).
5. The electrolyzer device based on space structure electrodes in a PEM hydrogen production system according to claim 4, characterized in that: A cover plate (7) is hingedly connected to the side of the upper surface of the water tank (5) away from the main body (1), and a handle (8) is fixedly connected to the side of the upper surface of the cover plate (7) away from the main body (1).
6. The electrolyzer device based on space structure electrodes in a PEM hydrogen production system according to claim 4, characterized in that: A chamber (9) is provided inside the water tank (5), and a water pump (10) is fixedly connected to the center of the bottom surface of the chamber (9).
7. The electrolyzer device based on a space structure electrode in a PEM hydrogen production system according to claim 6, characterized in that: The water outlet of the water pump (10) is fixedly connected to a first fluid delivery pipe (11), and the water inlet of the water pump (10) is fixedly connected to a second fluid delivery pipe (12).
8. The electrolyzer device based on space structure electrodes in a PEM hydrogen production system according to claim 7, characterized in that: A shunt pipe (13) is fixedly connected to the upper surface of the first fluid delivery pipe (11), and a valve (14) is fixedly connected to the outer wall of the shunt pipe (13).