Electrolytic tank structure for hydrogen production through water electrolysis

Abstract

The invention relates to the technical field of hydrogen production, in particular to a water electrolysis hydrogen production electrolytic bath structure which comprises a seat part, a diaphragm part is mounted on the upper side of the seat part, electrolysis areas are arranged on the left side and the right side of the diaphragm part, each electrolysis area comprises an area frame attached to the diaphragm part, and an electrolysis cavity transversely penetrating through the area frame is formed in the inner side of each area frame. A titanium plate attached to the diaphragm piece is installed on the inner side of the electrolysis cavity, a titanium mesh located on the inner side of the electrolysis cavity is attached to the side, away from the diaphragm piece, of the titanium plate, and a plurality of liquid inlet folding channels which are formed in the inner side of the area frame and are arranged in an L-shaped penetrating mode are arranged on the front side and the rear side of the titanium mesh correspondingly; according to the water electrolysis hydrogen production electrolytic tank structure, through the arrangement of the uniform liquid conveying part, the end plate piece, the electrolysis area and other structures, injected alkali liquor can be evenly distributed in the electrolysis cavity through the water electrolysis hydrogen production electrolytic tank structure, and formation of a dead area is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of hydrogen production technology, specifically to a water electrolysis hydrogen production electrolyzer structure. Background Technology

[0002] The water electrolysis hydrogen production electrolyzer is an electrochemical reactor that uses direct current to decompose water into hydrogen and oxygen. Its core structure consists of alternating stacked end plates, electrode plates, diaphragms, and catalytic mesh (titanium mesh). During operation, alkaline liquid is simultaneously fed into the anode and cathode chambers from the lower main inlet. On the anode surface, water is oxidized to generate oxygen, protons, and electrons. Electrons flow to the cathode through the external circuit, while protons pass through the diaphragm and migrate with OH⁻, combining on the cathode surface to generate hydrogen. The gas-alkali mixture is discharged from the upper outlet, and pure hydrogen is obtained after gas-liquid separation.

[0003] Currently, the distribution chamber of an electrolyzer has only a single inlet, and the inlet angle is straight and the number of inlets is insufficient. This causes the alkaline solution to rush directly into the electrolysis chamber in a high-speed jet. Under inertia, the main liquid flow is concentrated towards the opposite wall, while the flow velocity in the sides and corner areas decreases rapidly due to the lack of sufficient driving force, approaching zero. This creates a large area of ​​low flow velocity. In this area, the alkaline solution is hardly renewed, the produced bubbles cannot be carried away in time, and the gas remains stagnant for a long time. Due to the uneven liquid flow field, dead zones are created, which greatly affect the electrolysis performance of the electrolyzer. Therefore, to address the above problems, a water electrolysis hydrogen production electrolyzer structure is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a water electrolysis hydrogen production electrolyzer structure to solve the problem that dead zones are formed due to uneven liquid injection in traditional water electrolysis hydrogen production electrolyzers, which affects the electrolysis performance of the electrolyzer.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An electrolyzer structure for hydrogen production via water electrolysis includes a base. A diaphragm is mounted on the upper side of the base. Electrolysis zones are provided on both the left and right sides of the diaphragm. Each electrolysis zone includes a frame that fits into the diaphragm. An electrolysis chamber is formed by a transversely extending portion inside the frame. A titanium plate that fits into the diaphragm is mounted inside the electrolysis chamber. A titanium mesh located inside the electrolysis chamber is attached to the side of the titanium plate away from the diaphragm. Several L-shaped sections are formed inside the frame on both the front and back sides of the titanium mesh. The liquid inlet channel is arranged through the entire structure. The upper side of the titanium mesh is provided with an L-shaped discharge channel that is opened inside the frame. The side of the electrolysis zone away from the diaphragm is provided with an electrode plate. Sealing gaskets are provided on both the left and right sides of the electrode plate. Several liquid inlet holes corresponding to and connected to the liquid inlet channel are opened on the front and rear sides of the sealing gaskets and the electrode plate. Discharge holes connected to the discharge channel are opened on the upper side of the sealing gaskets and the electrode plate. End plates are provided on the back side of the sealing gaskets on both the left and right sides.

[0006] Preferably, the end plate includes a pressure plate that fits against the sealing gasket. A distribution cavity is formed on the side of the pressure plate away from the sealing gasket. Several flow channels are formed on the inner side of the pressure plate on both the front and rear sides of the distribution cavity, and each flow channel corresponds to and communicates with an inlet hole. A discharge channel communicating with a discharge hole is formed on the upper side of the pressure plate. A discharge head communicating with the discharge channel is fixedly connected to the side of the pressure plate away from the sealing gasket. Four positioning elements are provided on the upper side of the seat. The positioning components are all located at the corner holes of the pressure plate. Each positioning component includes a positioning bolt whose right end passes through the pressure plate, sealing gasket, electrode plate, zone frame, and diaphragm. The right end of the positioning bolt is threaded with a bolt, and the left end face of the bolt is tightly fitted with the right end face of the right pressure plate. A sealing spacer is fitted on the outside of the positioning bolt between the left and right pressure plates. The sealing spacer passes through the corner holes of the sealing gasket, electrode plate, zone frame, and diaphragm. A uniform infusion section is installed on the inner side of each distribution chamber.

[0007] Preferably, the uniform infusion section includes a guide shell fixed inside the distribution chamber. The guide shell has several mating through holes on both its front and rear sides, which correspond one-to-one with and communicate with the diversion channels. A vent hole is provided on the upper side of the guide shell. An inlet head is fixedly connected to the side of the guide shell away from the sealing gasket and is connected to the guide shell. A piston block is slidably connected to the inner side of the guide shell. Valve plates are fixedly connected to both sides of the lower end face of the piston block. Several valve holes are provided on the inner side of the valve plates at equal intervals. A spring is provided between the upper end face of the piston block and the upper inner wall of the guide shell.

[0008] Preferably, the left and right side electrode plates are divided into anode and cathode, the diaphragm is composed of an outer frame and an inner diaphragm, there are no gaps between the pressure plate, sealing gasket, electrode plate, zone frame and the outer frame of the diaphragm, the upper and lower side liquid inlet channels near the electrolysis chamber are all set at an inclined angle, and the inner diameter of the electrolysis chamber is the same as the diameter of the titanium plate.

[0009] Preferably, the back-facing end faces of the front and rear valve plates are slidably connected to the front and rear inner walls of the guide shell, the valve holes and the mating through holes are staggered, the valve holes are all located on the lower side of the mating through holes, and a gap is provided between the upper end face of the guide shell and the upper inner wall of the distribution cavity.

[0010] Preferably, the seat includes a seat shell disposed on the lower side of a pair of end plates. A support groove is provided on the upper side of the seat shell, and a guide groove is provided on the inner side of the seat shell below the support groove. Support legs are fixedly connected to the lower corners of the seat shell. A liquid collection groove communicating with the guide groove is provided in the left rear support leg. A liquid sensor fixed to the support leg is installed at the rear hole of the liquid collection groove. A drain head fixed to the support leg is installed at the left hole of the liquid collection groove. A warning light is installed on the left side of the seat shell.

[0011] Preferably, the lower end face of the pressure plate is in contact with the lower inner wall of the support groove, the guide groove is a groove structure with a higher front and a lower back, the drain head consists of a through pipe and a plug installed in the through pipe, and the liquid sensor and the warning light are electrically connected.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, through the structure of the uniform liquid delivery section, end plate, and electrolysis zone, the uniform liquid delivery section can simultaneously deliver alkaline solution to each branch channel of the end plate. The alkaline solution in each branch channel passes through the sealing gasket and the liquid inlet hole on the electrode plate in sequence, and flows into each liquid inlet channel in the electrolysis zone frame. It is injected into the electrolysis chamber at different angles and in multiple directions and positions, making full contact with the surface of the titanium mesh. This forms a stable and uniform liquid flow field between the titanium mesh and the diaphragm, completely eliminating the low flow rate dead zone and completing uniform liquid injection. This structure of the water electrolysis hydrogen production electrolyzer allows the injected alkaline solution to be evenly distributed in the electrolysis chamber, effectively avoiding the formation of dead zones. It solves the problem of dead zone formation caused by uneven liquid injection in traditional water electrolysis hydrogen production electrolyzers, which affects the electrolysis performance of the electrolyzer. 2. In this invention, the structure of the seat, end plate, and electrolysis zone allows the seat to support the diaphragm, electrolysis zone, sealing gasket, electrode plate, end plate, and uniform liquid delivery section. Furthermore, when leakage occurs between the diaphragm, electrolysis zone, sealing gasket, electrode plate, and end plate, the seat can detect and warn of the leakage, indicating a failure in the electrolysis cell's seal and requiring immediate shutdown for repair. This prevents the accumulation of leaked liquid inside the equipment, thus preventing further electrical short circuits, corrosion spread, and safety accidents. Attached Figure Description

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the disassembled and unfolded structure of the seat part; Figure 3 This is a schematic diagram of the split structure of the electrolysis zone of the present invention; Figure 4 For the present invention Figure 3 A partial sectional view of the oblique upward view of the structure; Figure 5 This is a schematic diagram of the end plate component of the present invention; Figure 6 For the present invention Figure 5 A partial sectional view of the structure; Figure 7 This is a partial cross-sectional view of the uniform infusion section of the present invention; Figure 8 This is a schematic diagram of the piston block structure of the present invention; Figure 9 This is a schematic diagram of the positioning component of the present invention; Figure 10 This is a schematic diagram of the structure of the base portion of the present invention; Figure 11 For the present invention Figure 10 A partial cross-sectional structural diagram.

[0014] In the diagram: 1. Base; 11. Housing; 12. Support groove; 13. Guide groove; 14. Support leg; 15. Liquid collection tank; 16. Liquid sensor; 17. Drain head; 18. Warning light; 2. Diaphragm component; 3. Electrolysis zone; 31. Zone frame; 32. Electrolysis chamber; 33. Liquid inlet channel; 34. Discharge channel; 35. Titanium mesh; 36. Titanium plate; 4. Sealing gasket; 5. Electrode plate; 6. Liquid inlet through hole; 7. 8. Discharge through hole; 9. End plate; 10. Pressure plate; 11. Distribution chamber; 12. Diversion channel; 13. Discharge straight channel; 14. Discharge head; 15. Discharge head; 16. Uniform infusion section; 17. Guide shell; 18. Fitting through hole; 19. Vent hole; 10. Inlet head; 11. Piston block; 12. Spring; 13. Valve plate; 14. Valve hole; 15. Positioning component; 16. Positioning bolt; 17. Bolt; 18. Sealing spacer. Detailed Implementation

[0015] Please see Figure 1-11 , the present invention provides a technical solution: An electrolyzer structure for hydrogen production via water electrolysis includes a base 1. A diaphragm 2 is mounted on the upper side of the base 1. Electrolysis zones 3 are provided on both the left and right sides of the diaphragm 2. Each electrolysis zone 3 includes a frame 31 that is attached to the diaphragm 2. An electrolysis chamber 32 is opened on the inner side of the frame 31 and is arranged horizontally. A titanium plate 36 that is attached to the diaphragm 2 is mounted on the inner side of the electrolysis chamber 32. A titanium mesh 35 located inside the electrolysis chamber 32 is attached to the side of the titanium plate 36 away from the diaphragm 2. Several L-shaped liquid inlet channels 33 are provided on both the front and rear sides of the titanium mesh 35, which are opened on the inner side of the frame 31 and are arranged through the entire structure. The upper side of the 35 is provided with an L-shaped discharge channel 34 that runs through the inner side of the frame 31. Electrode plates 5 are provided on the side of the electrolysis zone 3 away from the diaphragm 2. Sealing gaskets 4 are provided on both the left and right sides of the electrode plates 5. Several inlet holes 6, corresponding one-to-one with and connected to the inlet channels 33, are provided on the front and rear sides of the sealing gaskets 4 and the electrode plates 5. Discharge holes 7, connected to the discharge channels 34, are provided on the upper side of both the sealing gaskets 4 and the electrode plates 5. End plates 8 are provided on the back side of the left and right sealing gaskets 4. The end plates 8 include pressure plates 81 that fit against the sealing gaskets 4, with the pressure plates 81 located away from the sealing gaskets. A distribution cavity 82 is provided on one side of ring 4. Several diversion channels 83 are provided on both the front and rear sides of the distribution cavity 82, located inside the pressure plate 81. Each diversion channel 83 corresponds to and communicates with the inlet hole 6. A discharge straight channel 84, communicating with the discharge hole 7, is provided on the upper side of the pressure plate 81. A discharge head 85, communicating with the discharge straight channel 84, is fixedly connected to the side of the pressure plate 81 away from the sealing gasket 4. Four positioning members 10 are provided on the upper side of the seat 1. Each positioning member 10 is located at a corner hole of the pressure plate 81. Each positioning member 10 includes a right end that passes through the pressure plate 81, the sealing gasket 4, the electrode plate 5, and the area... The positioning bolt 101 of the frame 31 and the diaphragm 2 is threaded with a bolt 102 at the right end, and the left end face of the bolt 102 is tightly fitted with the right end face of the right pressure plate 81. A sealing sleeve 103 is sleeved on the outside of the positioning bolt 101 between the left and right pressure plates 81. The sealing sleeve 103 passes through the corner holes of the sealing gasket 4, the electrode plate 5, the frame 31 and the diaphragm 2. The diaphragm 2, the electrolysis zone 3, the sealing gasket 4 and the electrode plate 5 can be pressed and fixed by a pair of end plates 8 and several positioning parts 10. The inner side of the distribution cavity 82 is equipped with a uniform infusion section 9.The uniform infusion unit 9 includes a guide shell 91 fixed inside the distribution chamber 82. Several mating through holes 92, corresponding one-to-one with and communicating with the diversion channels 83, are provided on both the front and rear sides of the guide shell 91. A vent hole 93 is provided on the upper side of the guide shell 91. An inlet head 94 is fixedly connected to the side of the guide shell 91 away from the sealing gasket 4, and the inlet head 94 is connected to the guide shell 91. A piston block 95 is slidably connected to the inner side of the guide shell 91, and both sides of the lower end face of the piston block 95 are fixed. A valve plate 97 is connected, and several valve holes 98 are equally spaced and penetrate each other on the inner side of the valve plate 97. A spring 96 is provided between the upper end face of the piston block 95 and the upper inner wall of the guide shell 91. The uniform liquid delivery section 9 can simultaneously deliver alkaline solution to each diversion channel 83 of the end plate 8. The left and right electrode plates 5 are divided into anode and cathode. The diaphragm component 2 consists of an outer frame and an inner diaphragm. The pressure plate 81, sealing gasket 4, electrode plate 5, zone frame 31 and diaphragm component are also included. There are no gaps between the outer frames of component 2 to prevent leakage. The channels of the upper and lower liquid inlet channels 33 near the electrolysis chamber 32 are all inclined, allowing the alkali solution to be injected into the electrolysis chamber 32 from multiple directions and positions at different angles to achieve uniform injection. The inner diameter of the electrolysis chamber 32 is the same as the diameter of the titanium plate 36, preventing the alkali solution from passing through the titanium plate 36 and contacting the diaphragm component 2. The back-facing end faces of the front and rear valve plates 97 are slidably connected to the front and rear inner walls of the guide shell 91. The valve holes 98 and the mating through holes 92 are staggered, with the valve holes 98 all located below the mating through holes 92. This design prevents the uniform infusion section 9 from injecting liquid into the distribution channel 83 under normal conditions. A gap is provided between the upper end face of the guide shell 91 and the upper inner wall of the distribution chamber 82, allowing gas on the upper side of the piston block 95 to be discharged through the vent hole 93.

[0016] like Figure 1 , Figure 5 , Figures 10-11As shown, the seat 1 includes a seat shell 11 disposed on the lower side of a pair of end plates 8. A support groove 12 is provided on the upper side of the seat shell 11, and a guide groove 13 is provided on the inner side of the seat shell 11 below the support groove 12. Support legs 14 are fixedly connected to the lower end corners of the seat shell 11. A liquid collection groove 15 communicating with the guide groove 13 is provided in the left rear support leg 14. A liquid sensor 16 fixed to the support leg 14 is installed at the rear hole of the liquid collection groove 15. A drain head 17 fixed to the support leg 14 is installed at the left hole of the liquid collection groove 15. A warning light 18 is installed on the left side of the seat shell 11. The lower end face of the pressure plate 81 is in contact with the lower inner wall of the support groove 12. The guide groove 13 has a groove structure that is higher in the front and lower in the back. This arrangement makes the seat 1 On the one hand, it can support the diaphragm 2, electrolysis zone 3, sealing gasket 4, electrode 5, end plate 8, and uniform liquid delivery section 9. On the other hand, when leakage occurs between the diaphragm 2, electrolysis zone 3, sealing gasket 4, electrode 5, and end plate 8, it can detect and warn of the leakage, indicating that the electrolytic cell mechanism has failed to seal and that the machine needs to be stopped immediately for maintenance. The drain head 17 consists of a through pipe and a plug installed in the through pipe. This setting allows the operator to remove the plug and drain the liquid in the collection tank 15 through the through pipe of the drain head 17 for the next test. The liquid sensor 16 and the warning light 18 are electrically connected. This setting allows the warning light 18 to be activated when the liquid sensor 16 detects liquid.

[0017] Workflow: The operation of the water electrolysis hydrogen production electrolyzer is as follows: Note 1: All electrical appliances in this invention are externally powered; Note 2: The external liquid delivery pipeline must be connected to the inlet head 94 of the uniform liquid delivery section 9 on both sides; Liquid delivery operation: Through the external liquid delivery pipeline, the alkaline solution is continuously injected into the inlet head 94 and then flows into the guide shell 91. As the guide shell 91 gradually fills, the liquid that cannot be discharged in time generates static pressure, pushing the piston block 95 upward. When the piston block 95 moves upward, it first compresses the spring 96, and at the same time, the gas trapped above it is completely discharged to the outside of the guide shell 91 through the vent hole 93; Secondly, the piston block 95 drives the valve plates 97 on both sides to move upward synchronously, so that the valve holes 98 on the valve plates 97 and the corresponding mating through holes 92 on the guide shell 91 are connected. The initial misalignment is corrected to complete alignment, forming multiple parallel connecting channels. At this time, the alkaline solution in the guide shell 91 is simultaneously diverted through each valve hole 98 and the mating through hole 92 under uniform pressure, entering the symmetrically arranged diversion channels 83 on both sides. Subsequently, the alkaline solution in each diversion channel 83 passes through the sealing gasket 4 and the liquid inlet through hole 6 on the electrode plate 5 in sequence, and flows into the liquid inlet bend channel 33 in the frame 31 of the electrolysis zone 3. It is injected into the electrolysis chamber 32 at multiple directions and positions at different angles, making full contact with the surface of the titanium mesh 35, thereby forming a stable and uniform liquid flow field between the titanium mesh 35 and the diaphragm 2, completely eliminating the low flow rate dead zone. After the uniform liquid injection is completed, a DC voltage is applied to the two electrode plates 5: an oxygen evolution reaction occurs at the anode electrode plate 5, and water molecules are oxygenated. The process generates oxygen, protons, and electrons. Electrons flow through the external circuit to the cathode plate 5, while protons migrate with hydroxide ions through the diaphragm 2 to the cathode side. At the cathode plate 5, protons combine with electrons to generate hydrogen gas. The generated oxygen and hydrogen gas flow upwards with the alkaline solution, passing sequentially through the discharge channel 34, discharge through-hole 7, and discharge straight channel 84, and are finally discharged through the discharge head 85. After purification by the gas-liquid separation device, high-purity hydrogen gas is obtained. This structure, through multiple flow splitting and multi-angle liquid injection, enables the injected alkaline solution to be evenly distributed within the electrolysis chamber 32, effectively avoiding the formation of dead zones. This solves the problem of dead zones caused by uneven liquid injection in traditional water electrolysis hydrogen production electrolyzers, which affects the electrolysis performance of the electrolyzer. (Detection operation...) The base 11, support groove 12, and support legs 14 of the base 1 provide stable support for the diaphragm 2, electrolysis zone 3, sealing gasket 4, electrode 5, end plate 8, and uniform liquid delivery section 9. Furthermore, in the event of leakage between the diaphragm 2, electrolysis zone 3, sealing gasket 4, electrode 5, and end plate 8, the leaked liquid can fall into the guide groove 13. The guide groove 13, along its inclined direction, concentrates and guides the liquid into the collection tank 15. When the liquid sensor 16 detects liquid in the collection tank 15, it immediately controls the warning light 18 to illuminate, issuing a clear alarm to the personnel, indicating that the electrolytic cell mechanism's seal has failed and that immediate shutdown and repair are necessary. This prevents the leaked liquid from accumulating inside the equipment, thus preventing further electrical short circuits, corrosion expansion, and safety accidents.

[0018] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A water electrolysis hydrogen production electrolyzer structure, comprising a base (1), characterized in that: A diaphragm (2) is installed on the upper side of the seat (1). Electrolysis zones (3) are provided on both the left and right sides of the diaphragm (2). Each electrolysis zone (3) includes a frame (31) that is attached to the diaphragm (2). An electrolysis chamber (32) is opened on the inner side of the frame (31) and is arranged horizontally. A titanium plate (36) that is attached to the diaphragm (2) is installed on the inner side of the electrolysis chamber (32). A titanium mesh (35) located inside the electrolysis chamber (32) is attached to the side of the titanium plate (36) away from the diaphragm (2). Several liquid inlet folds that are opened on the inner side of the frame (31) and are arranged in an L-shape are provided on both the front and back sides of the titanium mesh (35). The upper side of the titanium mesh (35) is provided with an L-shaped discharge channel (34) that is opened inside the frame (31). The side of the electrolysis zone (3) away from the diaphragm (2) is provided with an electrode plate (5). The left and right sides of the electrode plate (5) are provided with sealing gaskets (4). The front and rear sides of the sealing gaskets (4) and the electrode plate (5) are provided with several liquid inlet holes (6) that correspond one-to-one with and are connected to the liquid inlet channel (33). The upper side of the sealing gaskets (4) and the electrode plate (5) is provided with a discharge through hole (7) that is connected to the discharge channel (34). The back side of the left and right sealing gaskets (4) is provided with an end plate (8).

2. The structure of a water electrolysis hydrogen production electrolyzer according to claim 1, characterized in that: The end plate (8) includes a pressure plate (81) that fits against the sealing gasket (4). A distribution cavity (82) is provided on the side of the pressure plate (81) away from the sealing gasket (4). Several diversion channels (83) are provided on both the front and rear sides of the distribution cavity (82) and are located inside the pressure plate (81). Each diversion channel (83) corresponds to and is connected to the liquid inlet hole (6). A discharge straight channel (84) connected to the discharge through hole (7) is provided on the upper side of the pressure plate (81). A discharge head (85) connected to the discharge straight channel (84) is fixedly connected to the side of the pressure plate (81) away from the sealing gasket (4). Four positioning members (10) are provided on the upper side of the seat (1). Each positioning member (10) is provided with At each corner hole of the pressure plate (81), the positioning element (10) includes a positioning bolt (101) whose right end passes through the pressure plate (81), sealing gasket (4), electrode plate (5), zone frame (31) and diaphragm (2). The right end of the positioning bolt (101) is threaded with a bolt (102), and the left end face of the bolt (102) is tightly fitted with the right end face of the right pressure plate (81). The outer side of the positioning bolt (101) is fitted with a sealing spacer (103) between the left and right pressure plates (81). The sealing spacer (103) passes through the corner holes of the sealing gasket (4), electrode plate (5), zone frame (31) and diaphragm (2). The inner side of the distribution chamber (82) is equipped with a uniform infusion part (9).

3. The structure of a water electrolysis hydrogen production electrolyzer according to claim 2, characterized in that: The uniform infusion unit (9) includes a guide shell (91) fixed inside the distribution chamber (82). The guide shell (91) has several mating through holes (92) on both the front and rear sides, which correspond one-to-one with and communicate with the diversion channel (83). The guide shell (91) has a vent hole (93) on its upper side. The guide shell (91) is fixedly connected to an inlet head (94) on the side away from the sealing gasket (4), and the inlet head (94) is connected to the guide shell (91). The guide shell (91) is slidably connected to a piston block (95). The piston block (95) has valve plates (97) fixedly connected to both sides of its lower end face. The valve plates (97) have several valve holes (98) that are equidistantly arranged through the inner side. A spring (96) is provided between the upper end face of the piston block (95) and the upper inner wall of the guide shell (91).

4. The structure of a water electrolysis hydrogen production electrolyzer according to claim 3, characterized in that: The left and right side electrode plates (5) are divided into anode and cathode. The diaphragm (2) is composed of an outer frame and an inner diaphragm. There are no gaps between the pressure plate (81), sealing gasket (4), electrode plate (5), zone frame (31) and the outer frame of the diaphragm (2). The channels of the liquid inlet folding channel (33) on the upper and lower sides near the electrolysis chamber (32) are all set at an inclined angle. The inner diameter of the electrolysis chamber (32) is the same as the diameter of the titanium plate (36).

5. The structure of a water electrolysis hydrogen production electrolyzer according to claim 3, characterized in that: The back side end faces of the valve plates (97) on the front and rear sides are slidably connected to the front and rear inner walls of the guide shell (91). The valve holes (98) and the mating through holes (92) are staggered. The valve holes (98) are all located on the lower side of the mating through holes (92). There is a gap between the upper end face of the guide shell (91) and the upper inner wall of the distribution cavity (82).

6. The structure of a water electrolysis hydrogen production electrolyzer according to claim 3, characterized in that: The seat (1) includes a seat shell (11) disposed on the lower side of a pair of end plates (8). A support groove (12) is provided on the upper side of the seat shell (11). A guide groove (13) is provided on the inner side of the seat shell (11) and located below the support groove (12). Support legs (14) are fixedly connected to the lower corner of the seat shell (11). A liquid collection groove (15) communicating with the guide groove (13) is provided in the left rear support leg (14). A liquid sensor (16) fixed to the support leg (14) is installed at the rear hole of the liquid collection groove (15). A drain head (17) fixed to the support leg (14) is installed at the left hole of the liquid collection groove (15). A warning light (18) is installed on the left side of the seat shell (11).

7. The structure of a water electrolysis hydrogen production electrolyzer according to claim 6, characterized in that: The lower end face of the pressure plate (81) is in contact with the lower inner wall of the support groove (12). The guide groove (13) is a groove structure with a high front and a low back. The drain head (17) consists of a through pipe and a plug installed in the through pipe. The liquid sensor (16) and the warning light (18) are electrically connected.

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