Electrolysis cell and electrolytic bath

Abstract

The utility model provides a small electrolysis chamber and an electrolytic bath. The small electrolysis chamber comprises a plurality of main electrode plates and a composite diaphragm electrode frame, the composite diaphragm pole frame comprises two opposite sub-pole frames and a plurality of diaphragms, and each diaphragm is connected with the two sub-pole frames; each main electrode plate is partially embedded into the two sub-electrode frames, the plurality of main electrode plates and the plurality of diaphragms are alternately stacked at intervals, each main electrode plate and the adjacent diaphragm form a gas chamber, and the gas chamber comprises a hydrogen chamber or an oxygen chamber. The possibility that hydrogen and oxygen generated on the two sides of the diaphragm run through an assembly gap between the sealing gasket and the diaphragm is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen production by water electrolysis, and in particular to an electrolysis chamber and an electrolysis cell. Background Art

[0002] In the process of generating hydrogen and oxygen by electrolysis of water, the electrolysis chamber refers to the smallest unit composed of cathode and anode electrodes, diaphragm and alkali solution (alkaline solution), which can generate hydrogen and oxygen by electrolysis of water under the action of direct current. It is a conductive material that realizes the process of water electrolysis by causing reduction (or oxidation) electrochemical reaction on its interface under the action of electric field. Based on the electrolysis chamber, an electrolytic cell can be formed. During electrolysis, oxidation reaction occurs on the anode electrode interface of the electrolysis chamber, and reduction reaction occurs on the cathode electrode interface. The diaphragm separates the electrolysis chamber in the electrolytic cell into cathode area and anode area, and separates the generated hydrogen and oxygen to prevent hydrogen and oxygen from penetrating each other, but ions can migrate.

[0003] The electrolytic chamber of a traditional electrolyzer consists of a main electrode plate, a diaphragm, and a sealing gasket in a fixed order. The diaphragm separates the hydrogen chamber from the oxygen chamber. The diaphragm is a woven cloth. If the position is misaligned when stacked, the gas on both sides of the chamber will cross when the equipment is working, which may cause explosion risks. Therefore, in traditional electrolyzers, it is necessary to install flow channel protection gaskets on each flow channel, which has a large number of parts and high assembly requirements. Utility Model Content

[0004] The present application provides a electrolytic chamber and an electrolytic cell, which are used to solve the problem that the fixing method of the main electrode plate and the diaphragm in the existing electrolytic chamber and electrolytic cell requires many parts and has high assembly requirements, which easily causes gas cross-talk between the two sides of the chamber and has the risk of explosion.

[0005] In one aspect, the present application provides an electrolysis chamber, comprising two or more main electrode plates and a composite diaphragm pole frame;

[0006] Wherein, the composite diaphragm pole frame comprises two opposite sub-pole frames and a plurality of diaphragms, and each diaphragm is connected to the two sub-pole frames;

[0007] Each main electrode plate is partially embedded in the two sub-electrode frames, and the plurality of main electrode plates and the plurality of diaphragms are alternately stacked, and each main electrode plate and the adjacent diaphragm form a gas chamber, and the gas chamber includes a hydrogen chamber or an oxygen chamber.

[0008] In a possible implementation, in the electrolysis chamber provided in the present application, an electrode net is attached to the diaphragm.

[0009] In a possible implementation, in the electrolysis chamber provided by the present application, the main electrode plate includes a sealing line, and the sealing line is provided at a portion of the main electrode plate embedded in the two sub-electrode frames.

[0010] In a possible implementation, in the electrolysis chamber provided in the present application, the sealing line is embossed.

[0011] In a possible implementation, in the electrolysis chamber provided in the present application, the main electrode plate further comprises stamped convex points, and the stamped convex points are arranged on the surface of the portion of the main electrode plate that is not embedded in the two sub-polarity frames.

[0012] In a possible implementation, in the electrolysis chamber provided by the present application, the main electrode plate further includes a hydrogen flow channel, an oxygen flow channel, and a liquid inlet flow channel.

[0013] In a possible implementation, in the electrolysis chamber provided in the present application, the main electrode plate is made of stainless steel.

[0014] In a possible implementation, in the electrolysis chamber provided in the present application, the sub-electrode frame is made of plastic.

[0015] On the other hand, the present application provides an electrolytic cell, comprising an electrolytic chamber as described in any one of the implementations of the first aspect.

[0016] In a possible implementation, the electrolysis chamber provided in the present application further includes: two rivet members, a negative terminal plate, a positive terminal plate, an insulating plate, and a positive terminal pressure plate;

[0017] The negative terminal plate and the positive terminal plate are arranged on both sides of the electrolysis chamber, and the negative terminal plate and the positive terminal plate are parallel to the main electrode plate in the electrolysis chamber;

[0018] The insulating plate is arranged between the positive terminal plate and the positive terminal pressure plate;

[0019] The rivet member includes a tensioning screw and a lock nut, one tensioning screw is inserted through the negative terminal plate and the sub-pole frame of the electrolysis chamber, and the other tensioning screw is inserted through the positive terminal pressure plate, the insulating plate, the positive terminal plate and the sub-pole frame of the electrolysis chamber.

[0020] The electrolytic chamber and electrolytic cell provided in the present application include multiple main electrode plates and a composite diaphragm pole frame; the composite diaphragm pole frame includes two opposite sub-pole frames and multiple diaphragms, each diaphragm is connected to the two sub-pole frames; each main electrode plate is partially embedded in the two sub-pole frames, and the multiple main electrode plates and the multiple diaphragms are alternately stacked, each main electrode plate and the adjacent diaphragms form a gas chamber, the gas chamber includes a hydrogen chamber or an oxygen chamber, and by providing a composite diaphragm pole frame, the possibility of hydrogen and oxygen generated on both sides of the diaphragm interpenetrating through the assembly gap between the sealing gasket and the diaphragm is eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0022] Figure 1 A schematic cross-sectional view of components of an electrolysis chamber provided in an embodiment of the present application;

[0023] Figure 2 A schematic front view of a main electrode plate provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the embossed sealing line of the main electrode plate provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of a front view of a composite diaphragm pole frame provided in an embodiment of the present application;

[0026] Figure 5 A schematic cross-sectional view of a composite diaphragm pole frame provided in an embodiment of the present application;

[0027] Figure 6 A schematic cross-sectional view of an electrolytic cell provided in an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1-main electrode plate; 2-attached electrode net; 3-composite diaphragm electrode frame; 4-stamping convex points; 5-liquid inlet channel; 6-hydrogen flow channel; 7-oxygen flow channel; 8-sealing line; 9-sub-electrode frame; 10-diaphragm; 11-tension screw; 12-lock nut; 13-negative terminal plate; 14-electrolysis chamber assembly; 15-positive terminal plate; 16-insulating plate; 17-positive terminal pressure plate.

[0030] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0032] Secondly, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] Then, it should be noted that, in the description of the present application, the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] As shown in the background technology, the electrolytic chamber of a traditional electrolytic cell is composed of a main electrode plate, a diaphragm, and a sealing gasket in a fixed order. The electrolytic chamber is separated from the hydrogen chamber and the oxygen chamber by a diaphragm. The diaphragm is a woven cloth. If the position is deviated when stacked, the gas on both sides of the chamber will cross when the equipment is working, which may cause explosion risks. On this basis, the main body of the electrolytic cell is composed of an electrode net, a diaphragm, a polytetrafluoroethylene sealing gasket, an electrode plate, a flow channel protection gasket, an end pressure plate, etc. Depending on the specifications of the equipment, the number of each part ranges from dozens to hundreds. The assembly work is labor-intensive and has high labor and time costs.

[0036] Based on this, the electrolysis chamber and method provided by the present application eliminate the possibility of hydrogen and oxygen generated on both sides of the diaphragm from mutual leakage through the assembly gap between the sealing gasket and the diaphragm through the integrated composite diaphragm pole frame, and the main electrode plate and the diaphragm composite pole plate are stacked at intervals and can be sealed by extrusion of the corrugated line and the plastic pole frame, without the need for additional sealing gasket parts.

[0037] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0038] Figure 1 The schematic cross-sectional view of the components of the electrolysis chamber provided in the embodiment of the present application is shown in FIG. Figure 1 As shown, the electrolysis chamber provided by the present application comprises two or more main electrode plates 1 and a composite diaphragm pole frame 3; wherein the composite diaphragm pole frame 3 comprises two opposite sub-pole frames 9 (combined Figure 5 ) and a plurality of diaphragms 10, each diaphragm 10 is connected to the two sub-pole frames 9; each main electrode plate 1 is partially embedded in the two sub-pole frames 9, and the plurality of main electrode plates 1 and the plurality of diaphragms 10 are alternately stacked, and each main electrode plate 1 forms a gas chamber with adjacent diaphragms 10, and the gas chamber includes a hydrogen chamber or an oxygen chamber.

[0039] It can be understood that the composite diaphragm pole frame 3 is composed of two opposite sub-pole frames 9 and a diaphragm 10. Each diaphragm is connected to two sub-pole frames 9, and such a design ensures a stable position and a tight fit of the diaphragm in the pole frame. Furthermore, each main electrode plate 1 is partially embedded in the two sub-pole frames 9, and such an embedded design makes the connection between the main electrode plate 1 and the sub-pole frame 9 tighter, reducing possible gaps.

[0040] Since the main electrode plates 1 and the diaphragms 10 are stacked alternately, each main electrode plate 1 forms an independent gas chamber with the adjacent diaphragms 10. This stacking method is not only compact in structure, but also can effectively isolate different gas chambers. Since each main electrode plate 1 forms an independent gas chamber with the adjacent diaphragms 10, the hydrogen chamber and the oxygen chamber are clearly distinguished. The design of the composite diaphragm pole 3 ensures the independence of these gas chambers and prevents the gas from passing through the assembly gap. At the same time, since the connection between the diaphragm 10 and the sub-pole frame 9 is very tight, and the main electrode plate 1 is partially embedded in the sub-pole frame 9, this design reduces the assembly gap, thereby eliminating the possibility of hydrogen and oxygen passing through these gaps.

[0041] In a possible implementation, a pole-attaching net 2 is attached to the diaphragm 10 .

[0042] It is understandable that the electrode net 2 is usually made of conductive material, and attached to the diaphragm 10 to increase the overall conductivity of the electrolysis chamber, and help to form a uniform electric field distribution on the surface of the diaphragm, thereby improving the uniformity and stability of the electrolysis process, thereby reducing resistance losses and improving electrolysis efficiency. And the electrode net 2 can help better separate hydrogen and oxygen, reduce the possibility of gas mixing, and thus improve gas purity. Furthermore, the electrode net 2 can provide additional mechanical support for the diaphragm 10 to prevent the diaphragm 10 from deformation or rupture due to gas pressure or other factors during the electrolysis process.

[0043] It should be noted that in the present application, some alternative solutions can also be adopted for the electrode net 2, such as using a diaphragm material with high conductivity itself, which can replace the conductivity enhancement effect of the electrode net to a certain extent, or coating a layer of conductive nanomaterial on the surface of the diaphragm, which can improve the conductivity and mechanical strength of the diaphragm and replace part of the function of the electrode net.

[0044] Figure 2 This is a schematic diagram of the front view of the main electrode plate provided in the embodiment of the present application, see Figure 2 As shown, the main electrode plate 1 further includes a sealing line 8 , and the sealing line 8 is arranged at the portion of the main electrode plate 1 embedded in the two sub-pole frames 9 .

[0045] It is understandable that the presence of the sealing line 8 can increase the embedding stability of the main electrode plate 1 in the sub-electrode frame 9, and prevent the main electrode plate 1 from loosening or displacement due to gas pressure or other factors during the electrolysis process. In addition, the sealing performance and structural stability enhanced by the sealing line 8 can reduce the maintenance frequency and failure rate of the equipment, thereby extending the service life of the electrolysis chamber.

[0046] Further, Figure 3 This is a schematic diagram of the embossed sealing line of the main electrode plate 1 provided in the embodiment of the present application, see Figure 3 As shown, the sealing line 8 is embossed.

[0047] The sealing line 8 produced by the embossing process can be formed by machining or die stamping.

[0048] The corrugated design of the sealing line 8 can increase the contact area and friction between the main electrode plate 1 and the sub-electrode frame 9, thereby enhancing the sealing effect and preventing gas leakage. In addition, the corrugated sealing line 8 can effectively fill the small gap between the main electrode plate 1 and the sub-electrode frame 9, further eliminating the possibility of hydrogen and oxygen passing through these gaps.

[0049] It should be noted that, in addition to the embossed sealing line 8 between the main electrode plate 1 and the sub-pole frame 9, an annular groove can be processed in the sealing area of ​​the plastic sub-pole frame 9, and an O-ring or sealing gasket can be added for sealing. Specifically, a highly elastic sealing material (such as silicone, rubber, etc.) can be used between the main electrode plate 1 and the sub-pole frame 9. These materials can deform under pressure, fill the gap, and enhance the sealing effect; or, an O-ring or sealing gasket can be set at the part where the main electrode plate 1 is embedded in the sub-pole frame 9. These sealing elements can provide good sealing performance and are easy to install; a layer of sealant can also be applied to the contact surface between the main electrode plate 1 and the sub-pole frame 9. After curing, the sealant can form a tight sealing layer to prevent gas leakage.

[0050] Furthermore, the main electrode plate 1 further comprises a stamped convex point 4 , and the stamped convex point 4 is arranged on the surface of the portion of the main electrode plate 1 that is not embedded in the two sub-pole frames 9 .

[0051] It is understandable that the stamped convex point 4 increases the surface area of ​​the main electrode plate 1, which helps to improve the efficiency of the electrolysis reaction, because the larger surface area can provide more reaction sites, and the convex point structure can promote the release of gases (such as hydrogen and oxygen) and reduce the retention of bubbles on the electrode surface, thereby improving the electrolysis efficiency and stability. Further, the stamped convex point 4 can increase the mechanical strength and rigidity of the main electrode plate 1, and prevent the electrode from being deformed due to gas pressure or other factors during the electrolysis process. On the other hand, the convex point can destroy the gas film on the electrode surface, reduce the electrode polarization phenomenon, and improve the electrolysis efficiency, thereby helping to form a more uniform current distribution on the electrode surface, thereby improving the uniformity and stability of the electrolysis process.

[0052] It should be noted that the stamped bumps 4 in the present application can also be replaced by other concave-convex structures. For example, through microstructural processing techniques such as laser etching and photolithography, tiny concave-convex structures can be formed on the electrode surface to increase the surface area and reaction sites; or a corrugated or other complex geometric electrode design can be used to increase the surface area and mechanical strength, while helping to release gas and evenly distribute current.

[0053] Furthermore, the main electrode plate 1 further includes a hydrogen flow channel 6 , an oxygen flow channel 7 and a liquid inlet flow channel 5 .

[0054] It is understood that by providing the hydrogen flow channel 6 and the oxygen flow channel 7, the generated hydrogen and oxygen can be effectively guided out of the electrolysis chamber, the retention of gas in the electrolysis chamber can be reduced, and the electrolysis efficiency can be improved. In addition, by providing independent hydrogen flow channels 6 and oxygen flow channels 7, the mixing of hydrogen and oxygen in the electrolysis chamber can be effectively prevented, ensuring the purity and safety of the gas.

[0055] The provision of the liquid inlet channel 5 can ensure that the electrolyte is evenly distributed in the electrolysis chamber, avoiding excessively high or low local electrolyte concentration, thereby improving the uniformity and stability of the electrolysis process. Furthermore, the liquid inlet channel 5 can help introduce coolant to take away the heat generated during the electrolysis process, prevent the electrolysis chamber from overheating, and thus extend the service life of the equipment.

[0056] Figure 4 This is a schematic diagram of a front view of a composite diaphragm pole frame provided in an embodiment of the present application. Figure 5 This is a schematic cross-sectional view of the composite diaphragm pole frame 3 provided in the embodiment of the present application, see Figures 4 to 5 As shown, a hydrogen flow channel 6, an oxygen flow channel 7 and a liquid inlet flow channel 5 are also provided in the composite diaphragm pole frame 3, and these flow channels correspond to the gas-liquid flow channels on the main electrode plate.

[0057] It is understandable that the alkali solution in the electrolytic cell enters each electrolytic cell through the liquid inlet channel 5 on the composite diaphragm pole frame 8. After the electrolysis reaction, the hydrogen and oxygen generated on the electrode net 2 in the hydrogen and oxygen chambers on both sides enter the aggregate oxygen flow channel and aggregate hydrogen flow channel of the electrolytic cell through the hydrogen flow channel 6 and oxygen flow channel 7 on the upper side of the electrolytic chamber, respectively, and are finally discharged from the electrolytic cell through the circulation action.

[0058] Integrating the gas and liquid flow channels into the main electrode plate 1 and the composite diaphragm pole frame 3 can simplify the overall structural design of the electrolysis chamber, reduce the use of external pipelines and connectors, and improve the reliability and compactness of the system.

[0059] Furthermore, each gas-liquid flow channel of the electrolytic chamber can adopt a chamber flow channel hole with an inclined structure, without the need for a flow channel protection gasket, and the number of parts is only 1 / 5 of that of a traditional alkaline electrolytic cell.

[0060] It is understandable that the inclined flow channel holes of the chamber can utilize gravity and fluid dynamics effects to more effectively separate gas and liquid, reduce gas retention in the electrolyte, and improve electrolysis efficiency, and the inclined flow channel design can promote the flow of electrolyte, reduce dead corners and retention areas, and ensure the uniform distribution of electrolyte in the electrolysis chamber, thereby improving the uniformity and stability of the electrolysis process. Furthermore, the inclined flow channel holes help to quickly discharge bubbles and reduce the retention of bubbles on the electrode surface, thereby reducing electrode polarization and improving electrolysis efficiency.

[0061] Furthermore, by directly integrating the inclined flow channel holes into the main electrode plate 1 and the composite diaphragm pole frame 3, an integrated design is achieved, which reduces the need for flow channel protection gaskets, thereby reducing the number of parts, and the simplified flow channel design reduces the need for external pipes and connectors, thereby further reducing the number of parts.

[0062] In a possible implementation, the main electrode plate 1 is made of stainless steel. The main electrode plate 1 is formed by stamping and corrugating a stainless steel sheet, and does not require subsequent processes, thereby reducing processing difficulty and cost.

[0063] It is understandable that the main electrode plate 1 is made of stainless steel sheet, and the surface can resist alkali corrosion without nickel plating. The convex point structure of the inner ring is stamped, and the sealing fold line of the outer ring is embossed by an embossing machine. The main electrode plate 1 and the diaphragm composite plate are stacked at intervals, and can be sealed by squeezing the embossing line and the plastic pole frame, without the need for additional sealing gasket parts.

[0064] Furthermore, the sub-electrode frame 9 is made of plastic. The sub-electrode frame 9 uses engineering plastics, and after the injection molding process, the pole frame is covered on the outer edge of the diaphragm 10 to form an integrated diaphragm pole frame structure, which prevents hydrogen and oxygen from interpenetrating in the electrolysis chamber, improves gas purity, and reduces the risk of explosion in the electrolysis chamber. In addition, the main material of the electrolysis chamber is engineering plastic, which can reduce the amount of steel used, reduce manufacturing costs, and reduce the weight of the equipment.

[0065] Based on the electrolysis chamber of the present application, the integrated composite diaphragm pole frame 3 prevents the possibility of hydrogen and oxygen generated on both sides of the diaphragm 10 from flowing into each other through the assembly gap between the sealing gasket 8 and the diaphragm 10 .

[0066] The present application also provides an electrolytic cell, the main body of which is composed of positive and negative electrode plates, end pressure plates and a plurality of electrolytic chamber assemblies 14, and the whole is fastened and fixed using a plurality of screws and nuts, wherein the electrolytic chamber assembly 14 includes any one of the electrolytic chambers described in the above embodiments.

[0067] Specifically, the electrolytic cell includes two rivet parts, a negative terminal plate 13, a positive terminal plate 15, an insulating plate 16 and a positive terminal pressure plate 17; the negative terminal plate 13 and the positive terminal plate 15 are arranged on both sides of the electrolytic chamber assembly 14, and the negative terminal plate 13 and the positive terminal plate 15 are parallel to the main electrode plate 1 in the electrolytic chamber assembly 14; the insulating plate 16 is arranged between the positive terminal plate 15 and the positive terminal pressure plate 17; the rivet part includes a tightening screw 11 and a lock nut 12, one tightening screw 11 is passed through the negative terminal plate 13 and the sub-pole frame 9 of the electrolytic chamber, and the other tightening screw 11 is passed through the positive terminal pressure plate 17, the insulating plate 16, the positive terminal plate 15 and the sub-pole frame 9 of the electrolytic chamber.

[0068] It can be understood that the negative terminal plate 13 and the positive terminal plate 15 are respectively arranged on both sides of the electrolytic chamber assembly 14 and are parallel to the main electrode plate in the electrolytic chamber assembly 14. Their function is to provide the electrode surface required in the electrolysis process; the insulating plate 16 mainly functions as electrical insulation to prevent short circuit between the positive terminal plate 14 and the positive terminal pressure plate 17; and the positive terminal pressure plate 17 is used to fix and press the entire electrolytic cell assembly to ensure that all parts are in close contact, reduce resistance, and improve electrolysis efficiency.

[0069] It is understandable that the tightening screw 11 and the lock nut 12 are used to fix and tighten the various parts of the electrolytic cell. One tightening screw 11 passes through the negative terminal plate 13 and the sub-pole frame 9 of the electrolytic chamber, and the other tightening screw 11 passes through the positive terminal pressure plate 17, the insulating plate 16, the positive terminal plate 15 and the sub-pole frame 9 of the electrolytic chamber. The screw is locked by the lock nut 12 to ensure the stability and tightness of the entire structure. It should be noted that in this application, other fasteners, such as bolts and nuts, or even clamps, etc., can also be used to achieve the same fixing and tightening effects.

[0070] During operation, the alkali solution enters the electrolytic cell through the liquid inlet channels processed on the main electrode plate 1 and the composite diaphragm pole frame 3. These liquid inlet channels ensure that the alkali solution can be evenly distributed to various parts of the electrolytic cell. Then it enters the electrolytic cells through the gas-liquid inlet and outlet channels of the cells on the pole frame, and the electrolysis reaction begins in these electrolytic cells. During the electrolysis reaction, the current is conducted to the electrode net 2 through the main electrode plate 1, causing the water molecules to decompose and generate hydrogen and oxygen. Hydrogen is generated in the cell on the negative electrode side of the electrolytic cell, while oxygen is generated in the cell on the positive electrode side. These gases enter the specially designed hydrogen flow channel 6 and oxygen flow channel 7 through the gas-liquid inlet and outlet channels of the cells set on the upper side of the cells. Hydrogen and oxygen gather in the flow channels and are led out of the electrolytic cell through these flow channels. During the whole process, the generation and discharge of gas are carried out continuously to ensure that the pressure and reaction conditions in the electrolytic cell remain stable. Finally, through the circulation effect, the generated hydrogen and oxygen are effectively discharged from the electrolytic cell, completing the entire electrolysis process. This design not only improves the electrolysis efficiency, but also ensures the safe discharge of gas and the stable operation of the system.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0073] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. An electrolysis chamber, characterized in that: It includes two or more main electrode plates and a composite diaphragm pole frame; Wherein, the composite diaphragm pole frame comprises two opposite sub-pole frames and a plurality of diaphragms, and each diaphragm is connected to the two sub-pole frames; Each main electrode plate is partially embedded in the two sub-electrode frames, and the plurality of main electrode plates and the plurality of diaphragms are alternately stacked, and each main electrode plate and the adjacent diaphragm form a gas chamber, and the gas chamber includes a hydrogen chamber or an oxygen chamber.

2. The electrolysis chamber according to claim 1, characterized in that The diaphragm is attached with an electrode net.

3. The electrolysis chamber according to claim 1 or 2, characterized in that: The main electrode plate comprises a sealing line, and the sealing line is arranged at a portion of the main electrode plate embedded in the two sub-polarity frames.

4. The electrolysis chamber according to claim 3, characterized in that The sealing line is embossed.

5. The electrolysis chamber according to claim 1 or 2, characterized in that: The main electrode plate further comprises a stamped convex point, and the stamped convex point is arranged on the surface of the portion of the main electrode plate that is not embedded in the two sub-polarity frames.

6. The electrolysis chamber according to claim 1 or 2, characterized in that: The main electrode plate also includes a hydrogen flow channel, an oxygen flow channel and a liquid inlet flow channel.

7. The electrolysis chamber according to claim 1 or 2, characterized in that: The main electrode plate is made of stainless steel.

8. The electrolysis chamber according to claim 1 or 2, characterized in that: The sub-pole frame is made of plastic.

9. An electrolytic cell, characterized in that: Comprising the electrolysis chamber according to any one of claims 1 to 8.

10. The electrolytic cell according to claim 9, characterized in that The electrolytic cell also includes: Two rivet parts, a negative terminal plate, a positive terminal plate, an insulating plate and a positive terminal pressure plate; The negative terminal plate and the positive terminal plate are arranged on both sides of the electrolysis chamber, and the negative terminal plate and the positive terminal plate are parallel to the main electrode plate in the electrolysis chamber; The insulating plate is arranged between the positive terminal plate and the positive terminal pressure plate; The rivet member includes a tensioning screw and a lock nut, one tensioning screw is inserted through the negative terminal plate and the sub-pole frame of the electrolysis chamber, and the other tensioning screw is inserted through the positive terminal pressure plate, the insulating plate, the positive terminal plate and the sub-pole frame of the electrolysis chamber.

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