Electrolytic cell for hydrogen production by electrolysis of water

Abstract

The application relates to the technical field of electrolytic tanks for hydrogen production by electrolysis of water, in particular to an electrolytic tank for hydrogen production by electrolysis of water, which comprises a first end plate and a bolt arranged in the first end plate, the other end of the bolt is connected with a second end plate in a penetrating mode, an electrolytic tank body is arranged between the first end plate and the second end plate, an electrolyte inlet is arranged in the second end plate in a penetrating mode, the electrolytic tank body is composed of multiple electrolytic cells, each electrolytic cell is composed of a first cylinder frame, a cathode plate, an anode plate, a second cylinder frame and a diaphragm body, and the outer sides of the first cylinder frame and the second cylinder frame are both fixedly provided with a first fixed pipe. The electrolytic tank for hydrogen production by electrolysis of water can well stir the surrounding electrolyte through the cooperation of the stirring block and the stirring plate, the stirring range is increased, the gas bubbles are prevented from being retained on the cathode plate and the anode plate, and therefore the electrolysis efficiency of the electrolytic tank body and the hydrogen production efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of electrolytic cells for hydrogen production through water electrolysis, specifically an electrolytic cell for hydrogen production through water electrolysis. Background Technology

[0002] Hydrogen energy is a clean, efficient and sustainable secondary energy source. It can be used in industries, transportation, power generation and energy storage. Therefore, hydrogen production technology is particularly important. In the process of producing hydrogen through water electrolysis, the electrolyzer is the key equipment for producing hydrogen. By applying direct current, water molecules are decomposed into hydrogen and oxygen, thus producing hydrogen effectively.

[0003] For example, the prior art patent with publication number "CN117107267A" entitled "A pressure filter electrolyzer and control method for hydrogen production by decoupled supercapacitor electrolysis of water" discloses a circumferential electrode frame that penetrates the end plate, supercapacitor electrode plate, and conductive flow channel plate along the axial direction of the cylinder, and provides an electrolyte inlet channel, a hydrogen-side gas-liquid outlet channel, and an oxygen-side gas-liquid outlet channel through a sealing gasket. Each channel, together with the external pipelines of the electrolyzer, the gas-liquid separation tank, the pump, and the flow meter, constitutes an electrolyte circulation system. The hydrogen production chamber of each electrolysis chamber is connected to the hydrogen-side gas-liquid outlet channel, and the oxygen production chamber of each electrolysis chamber is connected to the oxygen-side gas-liquid outlet channel. Another example is the prior art patent with publication number "CN216". The patent disclosed in "738564U" is titled "A Novel Electrolyzer for Alkaline Water Electrolysis to Produce Hydrogen." It discloses that a drive motor is started by a drive motor switch, which drives a first helical gear to rotate. The first helical gear drives a second helical gear to rotate, which in turn drives a transmission rod to rotate. The rotation of the transmission rod drives a connecting pipe to rotate, and the rotation of the connecting pipe drives a stirring blade to rotate. The two connecting pipes are respectively placed on one side of the anode and the other side of the cathode. When the stirring blade rotates, it agitates the alkaline electrolyte, which washes the surfaces of the anode and cathode, causing bubbles attached to the anode and cathode to overflow, increasing the working surface area of ​​the anode and cathode, and improving the working efficiency of alkaline water electrolysis to produce hydrogen.

[0004] In the existing electrolyzers described above, although the alkaline electrolyte is stirred by the stirring blades, causing the bubbles attached to the anode and cathode to overflow, the stirring range of the blades is fixed because their position is fixed. This results in poor stirring effect, causing some bubbles to remain on the anode and cathode, thus affecting the electrolysis efficiency of the electrolyzer and consequently the hydrogen production efficiency. Therefore, we propose an electrolyzer for water electrolysis to produce hydrogen, in order to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an electrolyzer for hydrogen production through water electrolysis, in order to solve the problem mentioned in the background art. In current electrolyzers on the market, although the alkaline electrolyte is stirred by the stirring blades, causing the bubbles attached to the anode and cathode to overflow, the stirring blades are fixed in position, resulting in a fixed stirring range. This leads to poor stirring effect, causing some bubbles to remain on the cathode and anode, thereby affecting the electrolysis efficiency of the electrolyzer and thus the hydrogen production efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electrolytic cell for hydrogen production through water electrolysis, comprising a first end plate and bolts installed inside it, with the other end of the bolts being connected through a second end plate. An electrolytic cell body is installed between the first end plate and the second end plate, and an electrolyte inlet is installed through the interior of the second end plate. The electrolytic cell body is composed of multiple electrolytic cells, and each electrolytic cell is composed of a first cylinder frame, a cathode plate, an anode plate, a second cylinder frame, and a diaphragm body. A first fixing pipe is fixed through the outer sides of both the first cylinder frame and the second cylinder frame, and an agitation assembly connected to the first fixing pipe is provided inside both the first cylinder frame and the second cylinder frame.

[0007] Preferably, the left side of the diaphragm body is connected to the cathode plate via a sealing gasket, and the left side of the cathode plate is connected to the first cylinder frame via a sealing gasket. The right side of the diaphragm body is connected to the second cylinder frame via a sealing gasket, and the right side of the second cylinder frame is connected to the anode plate via a sealing gasket. A cathode terminal is installed above the cathode plate, and an anode terminal is connected above the anode plate.

[0008] Preferably, a hydrogen outlet is installed above the first cylinder frame, and the top of the row of hydrogen outlets is connected to a hydrogen discharge pipe; an oxygen outlet is fixed above the second cylinder frame, and the top of the row of oxygen outlets is connected to an oxygen discharge pipe.

[0009] Preferably, the agitation assembly includes a first push column that penetrates the interior of the first fixed tube, and an arc-shaped agitation block is connected to the inner end of the first push column. A first sealing piston fixed to the outside of the first push column is tightly fitted and connected to the inner wall of the first fixed tube, and a return spring is sleeved on the outside of the first push column.

[0010] Preferably, a gear ring and a transmission gear are rotatably mounted on the inner side of the first end plate, and the transmission gear meshes with the gear ring. A convex plate is fixed on one side of the gear ring, and a row of protrusions is installed on the inner side of the convex plate. The protrusions are arranged in an arc shape. A bolt is provided on the outer side of the gear ring, and the rotation angle of the gear ring is less than 180°.

[0011] Preferably, the first push post has a sliding structure formed by protrusions.

[0012] Preferably, a horizontal plate is installed on one side of the horizontally arranged stirring block, and stirring plates are fixed on both the upper and lower sides of the horizontal plate.

[0013] Preferably, a second fixing tube is fixed inside both the first cylinder frame and the second cylinder frame, and a second sealing piston is fitted inside the second fixing tube. One side of the second sealing piston is connected to the second push column. The second push column is fixed above the side of the horizontal plate away from the stirring block. A liquid inlet pipe is fixed through the left side of one end of the second fixing tube, and a spray pipe is fixed through the right side of one end of the second fixing tube. A one-way valve is installed inside both the liquid inlet pipe and the spray pipe.

[0014] Preferably, a rectangular guide plate is fixed on the left side of the second end plate, and a connecting block is fixed above the first cylinder frame, cathode plate, anode plate, second cylinder frame and diaphragm body. The upper part of the connecting block is connected to the guide block by a fixing screw, and the guide plate is provided through the inside of the guide block.

[0015] Preferably, the interiors of the first pushing column and the stirring block are hollow, and the interiors of the first pushing column and the stirring block are connected.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the electrolytic cell for hydrogen production by electrolysis of water effectively agitates the surrounding electrolyte through the cooperation of the stirring block and stirring plate, increasing the agitation range and preventing air bubbles from being trapped on the cathode and anode plates, thereby improving the electrolysis efficiency of the electrolytic cell body and the hydrogen production efficiency. The specific details are as follows:

[0017] (1) The first push column drives the stirring block and stirring plate to move intermittently back and forth, thereby making the stirring block and stirring plate work together to stir the surrounding electrolyte, increasing the stirring range, avoiding bubbles from being stuck on the cathode plate and anode plate, thereby improving the electrolysis efficiency of the electrolyzer body and improving the hydrogen production efficiency.

[0018] Furthermore, the horizontal plate drives the second push column to move back and forth, allowing some electrolyte to enter the second fixed pipe through the inlet pipe, and then be sprayed onto the cathode plate and anode plate through the spray pipe. This can further remove the air bubbles stuck on the cathode plate and anode plate, increase the effective reaction area of ​​the cathode plate and anode plate, and further improve the electrolysis efficiency of the electrolyzer body and the hydrogen production efficiency.

[0019] (2) By fitting the guide block on the outside of the rectangular guide plate, it is not only convenient to stack and assemble the first cylinder frame, cathode plate, anode plate, second cylinder frame and diaphragm body in a guiding and limiting manner, but also convenient to suspend and place multiple first cylinder frames, cathode plates, anode plates, second cylinder frames and diaphragm bodies in the later stage through the guide plate. This facilitates the maintenance or replacement of the first cylinder frame, cathode plate, anode plate, second cylinder frame or diaphragm body in the later stage, and avoids the random placement of multiple first cylinder frames, cathode plates, anode plates, second cylinder frames and diaphragm bodies. Therefore, it is convenient to improve the efficiency of stacking and assembly in the later stage. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the right side of the electrolytic cell body of the present invention;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the first cylinder frame of the present invention;

[0023] Figure 4 This is a schematic cross-sectional view of the first cylinder frame structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the right side of the first cylinder frame structure of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0026] Figure 7 This is a cross-sectional view of the first and second fixing tubes of the present invention.

[0027] Figure 8 This is a schematic cross-sectional view of the first pushing column of the present invention;

[0028] Figure 9 This is a schematic diagram of the bolt separation structure from the second end plate of the present invention.

[0029] In the diagram: 1. First end plate; 2. Electrolyte inlet; 3. Bolt; 4. Electrolytic cell body; 5. Hydrogen exhaust pipe; 6. Transmission gear; 7. Gear ring; 71. Protruding plate; 72. Protrusion; 8. First cylinder frame; 81. Hydrogen exhaust port; 9. Cathode plate; 91. Cathode terminal; 10. Sealing gasket; 11. Second cylinder frame; 111. Oxygen exhaust port; 12. Anode plate; 121. Anode terminal; 13. Oxygen exhaust pipe; 4. Guide block; 141. Fixing screw; 142. Connecting block; 15. Guide plate; 16. Second end plate; 17. Diaphragm body; 18. First push column; 181. First sealing piston; 182. Return spring; 19. First fixing tube; 20. Second fixing tube; 21. Second push column; 211. Second sealing piston; 22. Stirring block; 23. Horizontal plate; 24. Stirring plate; 25. Liquid inlet pipe; 26. Spray pipe. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-9 The present invention provides the following technical solution:

[0032] Example 1: The electrolytic cell for hydrogen production via water electrolysis in this example increases the range of electrolyte agitation through the reciprocating moving stirring block 22 and stirring plate 24. This prevents air bubbles from accumulating on the cathode plate 9 and anode plate 12, thereby improving the electrolysis efficiency of the electrolytic cell body 4 and increasing hydrogen production efficiency. For the specific structure, please refer to the attached diagram. Figures 1-5 and appendix Figure 7 -Appendix Figure 8As shown, the system includes a first end plate 1 and bolts 3 installed inside it, with the other end of bolts 3 penetratingly connected to a second end plate 16. An electrolytic cell body 4 is installed between the first end plate 1 and the second end plate 16. An electrolyte inlet 2 is penetratingly installed inside the second end plate 16. The electrolytic cell body 4 consists of multiple electrolytic cells, each composed of a first cylinder frame 8, a cathode plate 9, an anode plate 12, a second cylinder frame 11, and a diaphragm body 17. First fixing pipes 19 are fixedly installed through the outer sides of both the first cylinder frame 8 and the second cylinder frame 11. A stirring assembly connected to the first fixing pipe 19 is installed inside both the first cylinder frame 8 and the second cylinder frame 11. The left side of the diaphragm body 17 is connected to the cathode plate 9 via a sealing gasket 10, and the left side of the cathode plate 9 is connected to the first cylinder frame 8 via a sealing gasket 10. The right side of the diaphragm body 17 is connected to the first cylinder frame 8 via a sealing gasket 10. A second cylinder frame 11 is connected to the first cylinder frame 8, and an anode plate 12 is connected to the right side of the second cylinder frame 11 through a sealing gasket 10. A cathode terminal 91 is installed above the cathode plate 9, and an anode terminal 121 is connected above the anode plate 12. A hydrogen outlet 81 is installed above the first cylinder frame 8, and the top of a row of hydrogen outlets 81 is connected to a hydrogen discharge pipe 5. An oxygen outlet 111 is fixed above the second cylinder frame 11, and the top of a row of oxygen outlets 111 is connected to an oxygen discharge pipe 13. The stirring assembly includes a first push column 18 that penetrates the interior of the first fixed pipe 19, and an arc-shaped stirring block 22 is connected to the inner end of the first push column 18. A first sealing piston 181 fixed to the outside of the first push column 18 is tightly fitted to the inner wall of the first fixed pipe 19, and a return spring 182 is sleeved on the outside of the first push column 18.

[0033] A gear ring 7 and a transmission gear 6 are rotatably mounted on the inner side of the first end plate 1, and the transmission gear 6 meshes with the gear ring 7. A protruding plate 71 is fixed on one side of the gear ring 7, and a row of protrusions 72 are installed on the inner side of the protruding plate 71. The protrusions 72 are arc-shaped. A bolt 3 is installed on the outer side of the gear ring 7. The rotation angle of the gear ring 7 is less than 180°. The first push column 18 forms a sliding structure through the protrusions 72. A horizontal plate 23 is installed on one side of the horizontally arranged stirring block 22, and stirring plates are fixed on both the upper and lower sides of the horizontal plate 23. 24. A second fixed tube 20 is fixed inside both the first cylinder frame 8 and the second cylinder frame 11, and a second sealing piston 211 is fitted inside the second fixed tube 20. One side of the second sealing piston 211 is connected to the second push column 21. The second push column 21 is fixed above the side of the horizontal plate 23 away from the stirring block 22. A liquid inlet pipe 25 is fixed through the left side of one end of the second fixed tube 20, and a spray pipe 26 is fixed through the right side of one end of the second fixed tube 20. A one-way valve is installed inside both the liquid inlet pipe 25 and the spray pipe 26.

[0034] First, electrolyte is injected into the electrolytic cell body 4 through electrolyte inlet 2. The electrolyte flows well into the multiple first cylinder frames 8 and second cylinder frames 11 through the electrolyte channel holes opened inside the cathode plate 9, anode plate 12 and diaphragm body 17. Then, the cathode terminal 91 and anode terminal 121 are connected to an external power source, so that the cathode plate 9 and anode plate 12 are energized with direct current. Hydrogen gas is then generated at the cathode plate 9 and discharged through the hydrogen outlet 81 and hydrogen discharge pipe 5. Oxygen gas is generated at the anode plate 12 and discharged through the oxygen outlet 111 and oxygen discharge pipe 13. Since this part is prior art, it will not be described in detail here.

[0035] During electrolysis, the left end of the transmission gear 6 is connected to an external servo motor. The servo motor drives the transmission gear 6 to rotate clockwise and counterclockwise in a reciprocating motion. The transmission gear 6 drives the gear ring 7 to rotate clockwise and counterclockwise in a reciprocating motion of less than 180°, as shown in the attached diagram. Figure 2 As shown, when the gear ring 7 rotates counterclockwise, it drives the outer convex plate 71 and convex block 72 to rotate. When the convex block 72 rotates to contact the first push post 18 at the corresponding position, the arc-shaped convex block 72 applies an inward thrust to the first push post 18 at the corresponding position. This causes multiple sets of first push posts 18 to drive the stirring block 22 and the first sealing piston 181 to move into the first cylinder frame 8 and the second cylinder frame 11 respectively. At the same time, one end of the horizontally arranged stirring block 22 drives the horizontal plate 23 and the stirring plate 24 to move inward together. Therefore, the arc-shaped stirring block 22 and the wave-shaped stirring plate 24 cooperate with each other and move back and forth to stir the electrolyte in the first cylinder frame 8 and the second cylinder frame 11. This can improve the stirring efficiency and increase the stirring range, and prevent air bubbles from being trapped on the cathode plate 9 and the anode plate 12, thereby improving the electrolysis efficiency of the electrolytic cell body 4.

[0036] When the horizontal plate 23 moves inward, it drives the second pushing column 21 and the second sealing piston 211 to move inward as well. At this time, some of the electrolyte in the periphery enters the second fixed tube 20 through the inlet pipe 25, which is equipped with a one-way valve. When the horizontal plate 23 moves outward to reset, the second pushing column 21 and the second sealing piston 211 move inward, spraying the electrolyte in the second fixed tube 20 onto one side of the cathode plate 9 and the anode plate 12 through the spray pipe 26. This further removes the air bubbles stuck on the cathode plate 9 and the anode plate 12, increases the effective reaction area of ​​the cathode plate 9 and the anode plate 12, and further improves the electrolysis efficiency of the electrolytic cell body 4, and further improves the hydrogen production efficiency.

[0037] Example 2: The electrolytic cell for hydrogen production via water electrolysis in this example, based on Example 1, not only facilitates the guided and constrained stacking assembly of the first cylinder frame 8, the second cylinder frame 11, the cathode plate 9, the anode plate 12, and the diaphragm body 17, but also facilitates the replacement of the first cylinder frame 8, the second cylinder frame 11, the cathode plate 9, the anode plate 12, or the diaphragm body 17 without them being scattered. For the specific structure, please refer to the attached diagram. Figure 6 and Figure 9 As shown, a rectangular guide plate 15 is fixed on the left side of the second end plate 16. A connecting block 142 is fixed above the first cylinder frame 8, the cathode plate 9, the anode plate 12, the second cylinder frame 11, and the diaphragm body 17. The upper part of the connecting block 142 is connected to the guide block 14 by a fixing screw 141, and the guide plate 15 is provided through the interior of the guide block 14.

[0038] When it is necessary to replace the first cylinder frame 8, the second cylinder frame 11, the cathode plate 9, the anode plate 12, or the diaphragm body 17, firstly, use tools to separate the bolt 3 from the second end plate 16, then separate the oxygen exhaust pipe 13 from the multiple oxygen exhaust ports 111, and separate the hydrogen exhaust pipe 5 from the multiple hydrogen exhaust ports 81. At this time, the multiple first cylinder frames 8, second cylinder frames 11, cathode plates 9, anode plates 12, and diaphragm bodies 17 are suspended on the outside of the rectangular guide plate 15 by the guide block 14. Then, locate one of the first cylinder frames. Remove the corresponding fixing screws 141 from the first cylinder frame 8, second cylinder frame 11, cathode plate 9, anode plate 12, or diaphragm body 17, so that the connecting block 142 is separated from the guide block 14. Thus, one of the first cylinder frame 8, second cylinder frame 11, cathode plate 9, anode plate 12, or diaphragm body 17 can be disassembled and replaced. At the same time, multiple first cylinder frames 8, second cylinder frames 11, cathode plates 9, anode plates 12, and diaphragm bodies 17 are not scattered among each other and do not need to be sorted later, thereby improving the efficiency of later stacking and assembly.

[0039] Example 3: The electrolyzer for hydrogen production via water electrolysis in this example, based on Example 1, can further improve the efficiency of cooling or heating the electrolyzer body 4. The specific structure is shown in the attached diagram. Figure 8 As shown, the interiors of the first push column 18 and the stirring block 22 are both hollow, and the interiors of the first push column 18 and the stirring block 22 are connected.

[0040] Temperature is detected by a temperature sensor installed on the electrolytic cell body 4. When the temperature inside the electrolytic cell body 4 is low, a certain amount of hot water is injected into the hollow first push column 18 and stirring block 22. Similarly, when the temperature inside the electrolytic cell body 4 is high, a certain amount of cold water is injected into the hollow first push column 18 and stirring block 22. The reciprocating movement of the first push column 18 and stirring block 22 facilitates the regulation of the temperature inside the electrolytic cell body 4, allowing the electrolytic cell body 4 to be used at an appropriate temperature. This controls the viscosity of the electrolyte, accelerates the movement of ions, and improves the conductivity of the electrolyte. At the same time, by controlling the temperature of the electrolytic cell body 4, the electrochemical reaction activity can be reduced, the oxidation reaction rate can be lowered, and the hydrogen yield can be increased, thereby further improving the electrolysis efficiency, the performance and lifespan of the electrolytic cell body 4, and thus completing a series of tasks.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrolytic cell for hydrogen production by water electrolysis, comprising a first end plate (1) and bolts (3) installed inside it, wherein the other end of the bolts (3) is connected through a second end plate (16), and an electrolytic cell body (4) is installed between the first end plate (1) and the second end plate (16), wherein an electrolyte inlet (2) is installed through the interior of the second end plate (16), characterized in that: The electrolytic cell body (4) is composed of multiple electrolytic cells, and each electrolytic cell is composed of a first cylinder frame (8), a cathode plate (9), an anode plate (12), a second cylinder frame (11), and a diaphragm body (17). A first fixing tube (19) is fixedly inserted through the outer sides of both the first cylinder frame (8) and the second cylinder frame (11). Furthermore, an agitation assembly connected to the first fixing tube (19) is provided inside both the first cylinder frame (8) and the second cylinder frame (11). The agitation assembly includes a component that penetrates the first fixing tube (19). The first push column (18) of the part is connected to the inner end of the first push column (18) with an arc-shaped stirring block (22). The first sealing piston (181) fixed on the outside of the first push column (18) is tightly connected to the inner wall of the first fixed tube (19). A reset spring (182) is sleeved on the outside of the first push column (18). A horizontal plate (23) is installed on one side of the horizontally arranged stirring block (22), and stirring plates (24) are fixed on both the upper and lower sides of the horizontal plate (23).

2. The electrolytic cell for hydrogen production via water electrolysis according to claim 1, characterized in that: The left side of the diaphragm body (17) is connected to the cathode plate (9) through a sealing gasket (10), and the left side of the cathode plate (9) is connected to the first cylinder frame (8) through a sealing gasket (10). The right side of the diaphragm body (17) is connected to the second cylinder frame (11) through a sealing gasket (10), and the right side of the second cylinder frame (11) is connected to the anode plate (12) through a sealing gasket (10). A cathode terminal (91) is installed above the cathode plate (9), and an anode terminal (121) is connected above the anode plate (12).

3. The electrolytic cell for hydrogen production via water electrolysis according to claim 1, characterized in that: A hydrogen outlet (81) is installed above the first cylinder frame (8), and the top of a row of hydrogen outlets (81) is connected to a hydrogen discharge pipe (5). An oxygen outlet (111) is fixed above the second cylinder frame (11), and the top of a row of oxygen outlets (111) is connected to an oxygen discharge pipe (13).

4. The electrolytic cell for hydrogen production via water electrolysis according to claim 1, characterized in that: The inner side of the first end plate (1) is rotatably mounted with a gear ring (7) and a transmission gear (6), and the transmission gear (6) meshes with the gear ring (7). A protruding plate (71) is fixed on one side of the gear ring (7), and a row of protrusions (72) is installed on the inner side of the protruding plate (71). The protrusions (72) are arranged in an arc shape. A bolt (3) is provided on the outer side of the gear ring (7), and the rotation angle of the gear ring (7) is less than 180°.

5. The electrolytic cell for hydrogen production via water electrolysis according to claim 4, characterized in that: The first push post (18) forms a sliding structure through the protrusion (72).

6. The electrolytic cell for hydrogen production via water electrolysis according to claim 1, characterized in that: The first cylinder frame (8) and the second cylinder frame (11) are both fixed with a second fixed tube (20), and the second fixed tube (20) is fitted with a second sealing piston (211). One side of the second sealing piston (211) is connected to the second push column (21). The second push column (21) is fixed above the side of the horizontal plate (23) away from the stirring block (22). The left side of one end of the second fixed tube (20) is fixed with an inlet pipe (25), and the right side of one end of the second fixed tube (20) is fixed with a spray pipe (26). The inlet pipe (25) and the spray pipe (26) are both equipped with one-way valves.

7. The electrolytic cell for hydrogen production via water electrolysis according to claim 1, characterized in that: A rectangular guide plate (15) is fixed on the left side of the second end plate (16). A connecting block (142) is fixed on the top of the first cylinder frame (8), the cathode plate (9), the anode plate (12), the second cylinder frame (11), and the diaphragm body (17). The top of the connecting block (142) is connected to the guide block (14) by a fixing screw (141), and the guide plate (15) is provided through the inside of the guide block (14).

8. The electrolytic cell for hydrogen production via water electrolysis according to claim 1, characterized in that: The interiors of the first push column (18) and the stirring block (22) are hollow, and the interiors of the first push column (18) and the stirring block (22) are connected.

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