A polar plate for producing hydrogen by electrolysis of water

Abstract

The invention relates to the technical field of hydrogen production by electrolysis of water, and specifically to an electrode plate for hydrogen production by electrolysis of water. A hose penetrating an outer ring is arranged at the other end of a microtube, the hose extends to the outside of the outer ring and is connected to an annular outer ring tube, an extension tube connected to an electrolytic cell is arranged at the lower end of the outer ring tube, a temperature sensor is arranged on the extension tube, and the temperature sensor is used to detect the temperature of the electrolyte in the electrolytic cell and the extension tube. The beneficial effect is as follows: by adding an outer ring tube connected to the microtube to the existing electrode plate, and cooperating with the temperature sensor, the temperature of the electrolytic cell is monitored in real time. Initially, the purpose of preheating is achieved by injecting liquid into the electrolytic cell and the microtube at the same time. As the hydrogen production reaction proceeds, the temperature of the electrolytic cell increases or the electrolysis water level decreases. At this time, the reaction efficiency decreases, and it is necessary to replenish the electrolyte in real time or pump out the high-temperature electrolyte and then replenish it with the low-temperature electrolyte for temperature neutralization and regulation, thereby improving the efficiency and purity of hydrogen production.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen production by electrolysis of water, and in particular to a polar plate for hydrogen production by electrolysis of water. Background Art

[0002] In the prior art, in the process of hydrogen production, the electrolysis of water is the best method for producing hydrogen, and the two most common methods of water electrolysis are alkaline solution electrolysis and proton membrane. Among them, the proton membrane method has high purity and fast speed in producing hydrogen, but its preparation cost is high and it is difficult to achieve large-scale mass production. Therefore, existing factories actually still use alkaline solution electrolysis.

[0003] Existing patent: CN202410113852.5 A plate for producing hydrogen by electrolysis of water is intended to solve the problem of waste of electric energy and time in the existing hydrogen production electrolyzer during heat engine. The key points of its technical solution are: including a main plate, a plurality of microchannels are opened inside the main plate, the plurality of microchannels penetrate the side wall of the main plate and are connected to the outside, a liquid inlet hole is opened at both ends of the main plate, and the surface of the main plate is provided with an anode reaction area or a cathode reaction area that is mutually connected with the liquid inlet hole. After water / alkali solution is injected into the main plate along the microchannel, the temperature of the main plate will be directly increased by heat conduction, thereby accelerating the reaction of the water / alkali solution subsequently injected into the electrolyzer to the main plate, thereby increasing the overall temperature of the electrolyzer, and the microchannel is separated from the anode reaction area and the cathode reaction area, and hydrogen production can be carried out while the temperature of the main plate is increased by using the microchannel, without interfering with each other, so the temperature of the main plate can be adjusted in the same way later, thereby controlling the temperature of the electrolyzer.

[0004] Therefore, the prior art discloses a technology for setting up microchannels on the electrode plate for rapid preheating, but it can only perform preheating and cannot achieve the purpose of real-time temperature regulation, resulting in a single regulation direction, inability to accurately regulate the temperature of the electrolysis process, and inability to accurately control the electrolyte, resulting in poor hydrogen production efficiency. In addition, the inner diameter of the microchannel is limited, and rapid temperature regulation cannot be achieved. Increasing the inner diameter will cause the thickness of the electrode plate to grow geometrically. Summary of the invention

[0005] The purpose of the present invention is to provide a plate for producing hydrogen by electrolyzing water to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A polar plate for producing hydrogen by electrolyzing water, the polar plate comprising an anode plate assembly and a cathode plate assembly, the anode plate assembly and the cathode plate assembly are fixedly connected and separated by a diaphragm, the anode plate assembly and the cathode plate assembly are both composed of a pole piece and an outer ring, wherein the outer edge of the pole piece is fixed with the outer ring, the pole piece is provided with a functional hole, the pole piece is provided with a plurality of groups of microtubes, and the multi-mouth microtubes are externally connected to a water inlet pipe assembly,

[0008] A stepped annular groove is provided on the inner side of the outer ring, and a first annular wing ring is provided on the outer edge of one side of the pole piece, the first wing ring is fixed in the stepped annular groove, the microtube extends through the first wing ring, an inner annular groove is provided in the middle of the first wing ring, a heat conducting plate fitted to the pole piece is provided in the inner annular groove, a reflux box is provided in the middle of the inner annular groove, multiple groups of microtubes penetrate the heat conducting plate and are connected to the reflux box, the reflux box is externally connected to a circulating pump, a hose penetrating the outer ring is provided at the other end of the microtube, the hose extends to the outside of the outer ring and is connected to the annular outer ring tube, an extension tube connected to the electrolytic cell is provided at the lower end of the outer ring tube, a temperature sensor is provided on the extension tube, and the temperature sensor is used to detect the temperature of the electrolyte in the electrolytic cell and the extension tube.

[0009] Preferably, a plurality of groups of screw holes distributed in a circular array are provided on the side wall of the outer ring, and a pressure ring is provided on the outer ring, the outer side of the pressure ring is pressed on the side wall of the outer ring, the inner side of the pressure ring is inserted in the step ring groove and pressed on the first wing ring, the pressure ring is fixed by a fastening screw inserted in the screw hole, and the pressure ring is pressed on the side wall of the outer ring.

[0010] Preferably, an annular gap groove is left between the pressure ring and the pole piece, and a plurality of densely distributed grooves are arranged on the end face of the pole piece. The gap grooves are connected to the grooves, and the functional holes on the pole piece are connected to the gap grooves and the grooves. The functional holes include exhaust holes and water inlet holes.

[0011] Preferably, a second wing plate is provided on the outer outer edge of the outer ring, the outer rings on the anode plate assembly and the cathode plate assembly are fixedly connected by a sealing ring fixed between the second wing plates, the diaphragm is provided on the sealing ring, and ears distributed in a circumferential array are provided on the second wing plate, and the ears on the anode plate assembly and the cathode plate assembly correspond to each other and are fixedly connected by screws.

[0012] Preferably, the anode plate assembly and the cathode plate assembly are both provided with a reflux box, and the reflux box is provided with a connecting port on one side close to the sealing ring, and adjacent connecting ports are respectively connected to ports distributed on the left and right sides of the lower end of the three-way water pipe, and the extension direction of the three-way water pipe is opposite to the direction of the extension pipe. The three-way water pipe slides through the sealing ring and extends to the outside, the heat conduction plate is arranged in a circular ring shape, and a plurality of groups of through holes distributed in a circular array are arranged on the heat conduction plate, and the middle section of the microtube slides through and is inserted in the through hole.

[0013] Preferably, the outer ring tube is provided with multiple groups of liquid-collecting balls corresponding to the microtubes one by one, the liquid-collecting balls are configured as hollow spheres, the multiple groups of liquid-collecting balls are distributed in a circular array, the liquid-collecting balls are connected to the hose through a connecting tube, and the middle section of the hose runs through the outer ring.

[0014] Preferably, the outer ring is provided with a plurality of groups of arc grooves corresponding one to one with the microtubes, a vibration motor is provided in the arc groove, the upper end of the vibration motor is located in the arc groove, the lower end of the vibration motor is fixed on the outer wall of the microtube, and a spring is provided between the two sides of the vibration motor and the inner wall of the arc groove, and the spring is in a compressed state.

[0015] Preferably, telescopic grooves are provided on the inner walls on both sides of the arc groove, and plug rods are symmetrically provided on both sides of the vibration motor. One end of the plug rod is provided with an end plate that fits the vibration motor, and the other end of the plug rod is slidably inserted in the telescopic groove. The spring is sleeved on the plug rod, and a gap is left between the end of the plug rod and the inner wall of the end of the telescopic groove.

[0016] Preferably, the insert rod is slidably sleeved with a retaining ring, the outer diameter of the retaining ring is larger than the inner diameter of the port of the telescopic slot, one end of the spring rests on the retaining ring, the other end of the spring rests on the end plate, and the other side of the retaining ring is pressed against the outside of the port of the telescopic slot.

[0017] Preferably, the first wing ring is fixedly welded on the pole piece, the second wing plate is integrally formed with the outer ring, the inner diameter of the stepped ring groove is larger than the inner diameter of the inner ring groove, and the stepped ring groove is connected to the inner ring groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention realizes real-time monitoring of the temperature of the electrolytic cell by adding an outer ring tube connected to the microtube on the existing electrode plate and cooperating with a temperature sensor. Initially, the purpose of preheating is achieved by injecting liquid into the electrolytic cell and the microtube at the same time. As the hydrogen production reaction proceeds, the temperature of the electrolytic cell increases or the electrolysis water level decreases. At this time, the reaction efficiency decreases, and it is necessary to replenish the electrolyte in real time or pump out the high-temperature electrolyte and then replenish it with the low-temperature electrolyte to neutralize the temperature and adjust the temperature. In this way, accurate temperature control is achieved during the processing, thereby improving the efficiency and purity of hydrogen production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a front view of the present invention;

[0022] Figure 3 for Figure 1 A magnified view of the structure at center;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the pole piece of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the pole piece of the present invention installed on the outer ring;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the pole piece installation of the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the outer ring of the present invention;

[0028] Fig. 9 It is a schematic diagram of the back structure of the pole piece of the present invention.

[0029] In the figure: 1. pole piece; 2. first wing ring; 3. outer ring; 4. second wing plate; 5. ear seat; 6. heat conducting plate; 7. outer ring pipe; 8. three-way water pipe; 9. reflux box; 10. screw hole; 11. micro tube; 12. connecting pipe; 13. extension pipe; 14. temperature sensor; 15. gap ring groove; 16. fastening screw; 17. pressure ring; 18. functional hole; 19. arc groove; 20. vibration motor; 21. telescopic groove; 22. plug rod; 23. step ring groove; 24. retaining ring; 25. spring; 26. end plate; 27. hose; 28. connection port; 29. ​​inner ring groove; 30. through hole; 31. liquid collecting ball; 32. sealing ring; 33. diaphragm. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 9 , the present invention provides a technical solution:

[0032] Embodiment 1: A plate for producing hydrogen by electrolysis of water, the plate comprising an anode plate assembly and a cathode plate assembly, the anode plate assembly and the cathode plate assembly being fixedly connected and separated by a diaphragm 33, the anode plate assembly and the cathode plate assembly both being composed of a pole piece 1 and an outer ring 3, wherein the outer ring 3 is fixed to the outer edge of the pole piece 1, a functional hole 18 is arranged on the pole piece 1, a plurality of groups of microtubes 11 are arranged on the pole piece 1, the multi-mouth microtubes 11 are externally connected to a water inlet pipe assembly, an annular gap ring groove 15 is left between the pressure ring 17 and the pole piece 1, a plurality of groups of grooves densely distributed are arranged on the end face of the pole piece 1, the gap ring groove 15 is connected to the groove, the functional hole 18 on the pole piece 1 is connected to the gap ring groove 15 and the groove, and the functional hole 18 comprises an exhaust hole and a water inlet hole.

[0033] The gap ring groove 15 and the groove are provided to achieve full contact between the electrolyte and the contact point, thereby improving the efficiency of electrolysis, and the functional hole 18 is utilized to achieve precise exhaust and water intake.

[0034] A stepped annular groove 23 is provided on the inner side of the outer ring 3, and a circular first wing ring 2 is provided on the outer edge of one side of the pole piece 1. The first wing ring 2 is fixed in the stepped annular groove 23. A plurality of groups of screw holes 10 distributed in a circumferential array are provided on the side wall of the outer ring 3. A pressing ring 17 is provided on the outer ring 3. The outer side of the pressing ring 17 is pressed on the side wall of the outer ring 3, and the inner side of the pressing ring 17 is inserted in the stepped annular groove 23 and pressed on the first wing ring 2. The pressing ring 17 is fixed by a fastening screw 16 inserted in the screw hole 10, and the pressing ring 17 is pressed on the side wall of the outer ring 3.

[0035] By providing the stepped annular groove 23 , the pole piece 1 is installed on the outer ring 3 in a limited position. By providing the pressure ring 17 , the fastening screw 16 and the screw hole 10 , the pole piece 1 is fixed on the outer ring 3 .

[0036] The microtube 11 extends through the first wing ring 2, and an inner ring groove 29 is provided in the middle of the first wing ring 2. A heat conducting plate 6 that fits the pole piece 1 is provided in the inner ring groove 29. The heat conducting plate 6 is provided in a circular ring shape, and a plurality of groups of through holes 30 distributed in a circumferential array are provided on the heat conducting plate 6. The middle section of the microtube 11 slides through and is inserted into the through hole 30. The first wing ring 2 is fixedly welded to the pole piece 1, and the second wing plate 4 is integrally formed with the outer ring. The inner diameter of the stepped ring groove 23 is larger than the inner diameter of the inner ring groove 29, and the stepped ring groove 23 is connected to the inner ring groove 29.

[0037] By providing the first wing ring 2 and the through hole 30, the microtube 11 can be extended through the electrode 1 without increasing the thickness of the electrode 1. The heat conducting plate 6 bonded to the electrode 1 can be used to quickly adjust the temperature of the electrode 1, thereby improving the efficiency of heat conduction.

[0038] A reflux box 9 is arranged in the middle of the inner ring groove 29, and multiple groups of microtubes 11 penetrate the heat conducting plate 6 and are connected to the reflux box 9. The reflux box 9 is externally connected to a circulation pump. A hose 27 penetrating the outer ring 3 is arranged at the other end of the microtube 11. The hose 27 extends to the outside of the outer ring 3 and is connected to the annular outer ring tube 7. An extension tube 13 connected to the electrolytic cell is arranged at the lower end of the outer ring tube 7. A temperature sensor 14 is arranged on the extension tube 13. The temperature sensor 14 is used to detect the temperature of the electrolyte in the electrolytic cell and the extension tube 13.

[0039] By providing the reflux box 9 and the extension tube 13, and then using the temperature sensor 14 to detect the temperature of the electrolytic cell, it is convenient to perform two-way temperature adjustment of water injection or water absorption, which greatly improves the convenience of adjustment.

[0040] Working principle: First, by setting the first wing ring 2 and the through hole 30, the microtube 11 can be extended through without increasing the thickness of the pole piece 1, and the heat conducting plate 6 that is in contact with the pole piece 1 can be used to quickly adjust the temperature of the pole piece 1. By setting the stepped annular groove 23, the pole piece 1 can be limitedly installed on the outer ring 3. By setting the pressure ring 17, the fastening screws 16 and the screw holes 10, the pole piece 1 can be fixed on the outer ring 3.

[0041] During the initial electrolysis, it is necessary to quickly increase the temperature of the electrode 1, so liquid is injected into the reflux box 9 and the electrolytic cell at the same time to achieve the purpose of increasing the temperature of the electrode 1. As the reaction proceeds, the temperature of the electrolytic cell increases or the electrolysis water level decreases. At this time, the reaction efficiency decreases, and it is necessary to replenish the electrolyte in real time or pump out the high-temperature electrolyte and then replenish it with low-temperature electrolyte for temperature neutralization and adjustment. In this way, precise temperature control can be achieved during the processing, thereby improving the efficiency and purity of hydrogen production.

[0042] Example 2: On the basis of Example 1, a second wing plate 4 is provided on the outer outer edge of the outer ring 3, the outer rings 3 on the anode plate assembly and the cathode plate assembly are fixedly connected by a sealing ring 32 fixed between the second wing plates 4, the diaphragm 33 is provided on the sealing ring 32, and the second wing plate 4 is provided with ears 5 distributed in a circumferential array, the ears 5 on the anode plate assembly and the cathode plate assembly correspond to each other and are fixedly connected by screws.

[0043] The sealing ring 32 and the diaphragm 33 are provided to separate the positive and negative electrodes in the plate, and the ear seat 5 is used to achieve a fixed connection between the anode plate assembly and the cathode plate assembly.

[0044] A reflux box 9 is provided on both the anode plate assembly and the cathode plate assembly. A connection port 28 is provided on one side of the reflux box 9 close to the sealing ring 32. Adjacent connection ports 28 are respectively connected to ports distributed on the left and right sides of the lower end of the three-way water pipe 8. The extension direction of the three-way water pipe 8 is opposite to the direction of the extension pipe 13. The three-way water pipe 8 slides through the sealing ring 32 and extends to the outside.

[0045] By arranging the three-way water pipe 8 and the connection port 28, synchronous adjustment of the anode plate assembly and the cathode plate assembly is achieved.

[0046] The outer ring tube 7 is provided with multiple groups of liquid-collecting balls 31 corresponding to the microtubes 11 one by one. The liquid-collecting balls 31 are configured as hollow spheres and are distributed in a circular array. The liquid-collecting balls 31 are connected to the hose 27 through the connecting tube 12, and the middle section of the hose 27 runs through the outer ring 3.

[0047] By providing the liquid collecting ball 13, the flow velocity impact of the water flow is reduced.

[0048] Example 3: On the basis of Example 2, a plurality of arc grooves 19 corresponding to the microtubes 11 are provided on the outer ring 3, a vibration motor 20 is provided in the arc groove 19, the upper end of the vibration motor 20 is located in the arc groove 19, the lower end of the vibration motor 20 is fixed on the outer wall of the microtube 11, and springs 25 are provided between the two sides of the vibration motor 20 and the inner wall of the arc groove 19, and the springs 25 are in a compressed state.

[0049] By setting the arc slot 19 and the vibration motor 20, the hose 27 is driven by vibration, and the microtube 11, the heat conducting plate 6 and the electrode 1 are simultaneously driven to vibrate with a small amplitude. The spring 25 is adapted to the position offset caused by the vibration, and then with the vibration of the electrode 1, the airflow generated by the electrolysis is quickly discharged upward to avoid the bubbles generated from agglomerating to form large bubbles and causing obstruction, thereby improving the electrolysis efficiency.

[0050] Telescopic grooves 21 are provided on the inner walls on both sides of the arc groove 19, and rods 22 are symmetrically provided on both sides of the vibration motor 20. One end of the rod 22 is provided with an end plate 26 that fits with the vibration motor 20, and the other end of the rod 22 is slidably inserted in the telescopic groove 21. The spring 25 is sleeved on the rod 22, and a gap is left between the end of the rod 22 and the inner wall of the end of the telescopic groove 21. The rod 22 is slidably sleeved with a retaining ring 24, and the outer diameter of the retaining ring 24 is larger than the inner diameter of the port of the telescopic groove 21. One end of the spring 25 is against the retaining ring 24, and the other end of the spring 25 is against the end plate 26. The other side of the retaining ring 24 is pressed against the outside of the port of the telescopic groove 21.

[0051] By setting the insertion rod 22 and the telescopic slot 21, the position of the spring 25 is limited to ensure its directional offset, and the spring 25 is pressed together with the extrusion of the retaining ring 24, thereby realizing convenient installation of the insertion rod 22 and the spring 25 on the telescopic slot 21.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate for producing hydrogen by electrolyzing water, the plate comprising an anode plate assembly and a cathode plate assembly, the anode plate assembly and the cathode plate assembly being fixedly connected and separated by a diaphragm (33), the anode plate assembly and the cathode plate assembly both being composed of a pole piece (1) and an outer ring (3), wherein the outer edge of the pole piece (1) is fixed with the outer ring (3), the pole piece (1) is provided with a functional hole (18), the pole piece (1) is provided with a plurality of groups of microtubes (11), the multi-mouth microtubes (11) are externally connected to a pipe assembly for inlet water, Features: The inner side of the outer ring (3) is provided with a stepped annular groove (23); the outer edge of one side of the pole piece (1) is provided with a circular first wing ring (2); the first wing ring (2) is fixed in the stepped annular groove (23); the microtube (11) extends through the first wing ring (2); an inner annular groove (29) is provided in the middle of the first wing ring (2); a heat conducting plate (6) that fits the pole piece (1) is provided in the inner annular groove (29); a reflux box (9) is provided in the middle of the inner annular groove (29); and a plurality of groups of the microtubes (11) are provided. ) penetrates the heat conducting plate (6) and is connected to the reflux box (9), the reflux box (9) is externally connected to a circulation pump, the other end of the microtube (11) is provided with a hose (27) that penetrates the outer ring (3), the hose (27) extends to the outside of the outer ring (3) and is connected to the annular outer ring tube (7), the lower end of the outer ring tube (7) is provided with an extension tube (13) that is connected to the electrolytic cell, the extension tube (13) is provided with a temperature sensor (14), the temperature sensor (14) is used to detect the temperature of the electrolyte in the electrolytic cell and the extension tube (13).

2. The electrode plate for producing hydrogen by electrolysis of water according to claim 1, characterized in that: A plurality of groups of screw holes (10) distributed in a circumferential array are provided on the side wall of the outer ring (3); a pressure ring (17) is provided on the outer ring (3); the outer side of the pressure ring (17) is pressed onto the side wall of the outer ring (3); the inner side of the pressure ring (17) is inserted into the stepped ring groove (23) and pressed onto the first wing ring (2); the pressure ring (17) is fixed by a fastening screw (16) inserted into the screw hole (10), and the pressure ring (17) is pressed onto the side wall of the outer ring (3).

3. The electrode plate for producing hydrogen by electrolysis of water according to claim 2, characterized in that: An annular gap ring groove (15) is left between the pressure ring (17) and the pole piece (1), and a plurality of groups of densely distributed grooves are provided on the end surface of the pole piece (1), the gap ring groove (15) is connected to the groove, and the functional hole (18) on the pole piece (1) is connected to the gap ring groove (15) and the groove, and the functional hole (18) includes an exhaust hole and a water inlet hole.

4. The electrode plate for producing hydrogen by electrolysis of water according to claim 3, characterized in that: A second wing plate (4) is provided at the outer edge of the outer side of the outer ring (3); the outer rings (3) on the anode plate assembly and the cathode plate assembly are fixedly connected via a sealing ring (32) fixed between the second wing plates (4); the diaphragm (33) is provided on the sealing ring (32); and ear seats (5) distributed in a circumferential array are provided on the second wing plate (4); the ear seats (5) on the anode plate assembly and the cathode plate assembly correspond to each other and are fixedly connected via screws.

5. The electrode plate for producing hydrogen by electrolysis of water according to claim 4, characterized in that: The anode plate assembly and the cathode plate assembly are both provided with a reflux box (9), and a connection port (28) is provided on one side of the reflux box (9) close to the sealing ring (32), and adjacent connection ports (28) are respectively connected to ports distributed on the left and right sides of the lower end of the three-way water pipe (8), and the extension direction of the three-way water pipe (8) is opposite to the direction of the extension pipe (13). The three-way water pipe (8) slides through the sealing ring (32) and extends to the outside, the heat conducting plate (6) is set to be annular, and a plurality of groups of through holes (30) distributed in a circumferential array are provided on the heat conducting plate (6), and the middle section of the microtube (11) slides through and is inserted into the through hole (30).

6. The electrode plate for producing hydrogen by electrolysis of water according to claim 1, characterized in that: The outer ring tube (7) is provided with a plurality of groups of liquid-collecting balls (31) corresponding one to one with the microtubes (11); the liquid-collecting balls (31) are configured as hollow spheres; the plurality of groups of liquid-collecting balls (31) are distributed in a circular array; the liquid-collecting balls (31) are connected to the hose (27) via the connecting tube (12); and the middle section of the hose (27) passes through the outer ring (3).

7. The electrode plate for producing hydrogen by electrolysis of water according to claim 5, characterized in that: The outer ring (3) is provided with a plurality of groups of arc grooves (19) corresponding one to one with the microtubes (11), and a vibration motor (20) is provided in the arc groove (19), the upper end of the vibration motor (20) is located in the arc groove (19), and the lower end of the vibration motor (20) is fixed on the outer wall of the microtube (11), and springs (25) are provided between the two sides of the vibration motor (20) and the inner wall of the arc groove (19), and the springs (25) are in a compressed state.

8. The electrode plate for producing hydrogen by electrolysis of water according to claim 7, characterized in that: Telescopic grooves (21) are arranged on the inner walls on both sides of the arc groove (19), and plug rods (22) are symmetrically arranged on both sides of the vibration motor (20), one end of the plug rod (22) is provided with an end plate (26) that fits the vibration motor (20), and the other end of the plug rod (22) is slidably inserted into the telescopic groove (21), and the spring (25) is sleeved on the plug rod (22), and a gap is left between the end of the plug rod (22) and the inner wall of the end of the telescopic groove (21).

9. The electrode plate for producing hydrogen by electrolysis of water according to claim 8, characterized in that: The insert rod (22) is slidably sleeved with a retaining ring (24), the outer diameter of the retaining ring (24) being larger than the inner diameter of the end of the telescopic slot (21), one end of the spring (25) abuts against the retaining ring (24), the other end of the spring (25) abuts against the end plate (26), and the other side of the retaining ring (24) is pressed against the outside of the end of the telescopic slot (21).

10. The electrode plate for producing hydrogen by electrolysis of water according to claim 1, characterized in that: The first wing ring (2) is fixedly welded to the pole piece (1), the second wing plate (4) is integrally formed with the outer ring, the inner diameter of the stepped annular groove (23) is greater than the inner diameter of the inner annular groove (29), and the stepped annular groove (23) is connected to the inner annular groove (29).

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