Square electrolytic bath sealing gasket composite structure

Abstract

The utility model discloses a square electrolytic bath sealing gasket composite structure, which relates to the technical field of water electrolysis hydrogen production equipment, and comprises a gasket main body, a sealing area is arranged in the gasket main body, positioning areas are arranged at two ends of the sealing area, the cross section of the sealing area is rectangular, a positioning bulge is arranged at the top of each positioning area, and a rubber sheet is arranged on the outer side of each positioning bulge. Bayonets are distributed on the side, away from the positioning protrusions, of the positioning area. According to the square electrolytic bath sealing gasket composite structure, the gasket main body is inserted in the position of a cathode plate in an electrolytic bath through the protruding positioning protrusions on the positioning area, the gasket main body and the position of an anode plate in the electrolytic bath are increased through the inwards-sunken clamping openings in the positioning area, and the contact area between the gasket main body and the anode plate is increased; the friction force between the pad body and the anode plate is increased, so that when the pad body and the anode plate are mounted, the position of the pad body on the anode plate and the cathode plate is not easy to deviate, the mounting precision is ensured, and electrolyte or gas leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water electrolysis hydrogen production equipment, in particular to a square electrolytic cell sealing gasket composite structure. Background Art

[0002] Hydrogen production through water electrolysis is a common method. This process involves splitting water into hydrogen and oxygen. This process typically takes place in an electrolyzer, which typically consists of an electrolyte and two electrodes (an anode and a cathode). The electrodes are typically made of conductive materials such as palladium, platinum, or carbon. When an external current passes through the electrolyzer, water molecules at the cathode are reduced to hydrogen, while those at the anode are oxidized to oxygen.

[0003] The sealing gasket is placed on the sealing surface between the anode and cathode to ensure complete sealing of this area. The existing Chinese patent with authorization announcement number CN218951512U discloses a flat electrolytic cell gasket. The gasket is detachably connected to the ion selective membrane. When the ion selective membrane is damaged, it can be directly replaced with a new one and the gasket can be recycled.

[0004] In an electrolytic cell, the gap between the anode (usually a metal plate) and the cathode (which may be a metal plate or other material) needs to be sealed to prevent electrolyte leakage or external impurities from entering. To avoid leakage, a sealing gasket is usually made of corrosion-resistant rubber and is set in the gap between the cathode and cathode. The surface of existing sealing gaskets is relatively flat and lacks positioning. During installation, deviations between the anode and cathode in the motor slot are prone to occur, resulting in insufficient sealing and causing electrolyte or gas leakage. Utility Model Content

[0005] In view of the fact that the surfaces of the above-mentioned existing sealing gaskets are relatively flat and lack positioning, they are prone to deviation in the anode and cathode of the motor slot during installation, resulting in insufficient sealing and causing leakage of electrolyte or gas, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a square electrolytic cell sealing gasket composite structure, the purpose of which is to: by providing a positioning protrusion on the gasket body that is plugged into the cathode plate and a clip that increases the friction with the anode plate, the position of the gasket body on the anode and cathode plates is not easily offset, thereby ensuring installation accuracy.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a square electrolytic cell sealing gasket composite structure, which includes a gasket body, a sealing area is provided in the gasket body, and positioning areas are provided at both ends of the sealing area;

[0008] The cross-section of the sealing area is rectangular, and the positioning areas are symmetrically distributed on both sides of the sealing area. A positioning protrusion is provided on the top of the positioning area, and one end of the positioning protrusion protrudes from the surface of the positioning area. A rubber is provided on the outside of the positioning protrusion, and the rubber covers the surfaces of the sealing area and the positioning area. A bayonet is arranged on the side of the positioning area away from the positioning protrusion, and one end of the bayonet is recessed toward the side close to the positioning area.

[0009] As a preferred solution of the square electrolytic cell sealing gasket composite structure of the utility model, the bayonet is in a structure that is wide outside and narrow inside, and the outer angle of the bayonet is sixty degrees.

[0010] As a preferred solution of the square electrolytic cell sealing gasket composite structure of the utility model, wherein: a docking section is provided in the positioning area, the positioning protrusion is located at the top of the docking section, a connecting section is provided at one end of the docking section, and the docking section is connected to the sealing area through the connecting section.

[0011] As a preferred solution of the square electrolytic cell sealing gasket composite structure of the utility model, a closed section is provided at one end of the docking section away from the connecting section, a positioning groove is provided on the top of the closed section, and one end of the positioning groove is recessed toward the side close to the positioning area.

[0012] As a preferred solution of the square electrolytic cell sealing gasket composite structure of the utility model, an inner gasket is provided in the sealing area, and the outer side of the inner gasket is also covered with rubber.

[0013] As a preferred solution of the square electrolytic cell sealing gasket composite structure of the utility model, the outer side of the inner gasket is provided with through holes, the through holes are distributed along the contour line of the inner gasket, and the rubber is installed on the outer side of the inner gasket through the through holes.

[0014] As a preferred solution of the square electrolytic cell sealing gasket composite structure of the utility model, a diaphragm is provided on the inner side of the inner gasket, and the diaphragm is located on the inner side of the sealing area through the inner gasket.

[0015] Beneficial effects of the utility model:

[0016] 1. The pad body is inserted into the cathode plate of the electrolytic cell through the protruding positioning protrusions on the positioning area. The pad body is increased to the anode plate in the electrolytic cell through the inwardly recessed bayonet on the positioning area. By increasing the contact area with the anode plate, the friction between the pad body and the anode plate is increased, so that when the pad body is installed with the anode and cathode plates, the position of the pad body on the anode and cathode plates is not easily offset, thereby ensuring installation accuracy and avoiding leakage of electrolyte or gas.

[0017] 2. Provide better sealing effect with the cathode plate in the electrolytic cell through the positioning groove, so that the pad body can fit more closely on the surface of the cathode plate, and cooperate with the bayonet to prevent electrolyte or gas from leaking from the edge of the electrolytic cell.

[0018] 3. The through holes allow the rubber to form a correspondingly installed composite structure on the outside of the inner gasket, reducing the corrosion of the electrolyte on the gasket body and allowing any gas or liquid accumulated around the sealing area to be released freely, avoiding the formation of bubbles or liquid accumulation around the sealing area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the square electrolytic cell sealing gasket composite structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the square electrolytic cell sealing gasket composite structure of the present invention.

[0022] Figure 3 This is a schematic structural diagram of the positioning area of ​​the square electrolytic cell sealing gasket composite structure of the present invention.

[0023] Figure 4 The utility model is a square electrolytic cell sealing gasket composite structure Figure 2 Schematic diagram of the enlarged structure of part A.

[0024] Figure 5 This is a schematic diagram of the sealing area structure of the square electrolytic cell sealing gasket composite structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the assembly structure of the square electrolytic cell sealing gasket composite structure of the present invention.

[0026] Description of reference numerals:

[0027] 1. Gasket body; 2. Sealing area; 3. Positioning area; 4. Positioning protrusion; 5. Rubber; 6. Bayonet; 7. Docking section; 8. Connecting section; 9. Sealed section; 10. Positioning groove; 11. Inner gasket; 12. Through hole; 13. Diaphragm. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings. Example

[0029] Reference Figure 1-6 , which is the first embodiment of the present utility model, provides a square electrolytic cell sealing gasket composite structure, which includes a gasket body 1, a sealing area 2 is provided in the gasket body 1, and positioning areas 3 are provided at both ends of the sealing area 2. The cross section of the sealing area 2 is rectangular, and the positioning areas 3 are symmetrically distributed on both sides of the sealing area 2. A positioning protrusion 4 is provided on the top of the positioning area 3, and one end of the positioning protrusion 4 protrudes from the surface of the positioning area 3. A rubber 5 is provided on the outside of the positioning protrusion 4, and the rubber 5 covers the surfaces of the sealing area 2 and the positioning area 3. The positioning area 3 is arranged on the side away from the positioning protrusion 4. The bayonet 6 has one end recessed toward the side close to the positioning area 3. The surface of the sealing area 2 is relatively flat, which is convenient for fitting the plates in the electrolytic cell. The pad body 1 is inserted into the cathode plate in the electrolytic cell through the protruding positioning protrusion 4 on the positioning area 3. The pad body 1 is increased with the anode plate in the electrolytic cell through the inwardly recessed bayonet 6 on the positioning area 3. By increasing the contact area with the anode plate, the friction between the pad body 1 and the anode plate is increased, so that when the pad body 1 is installed with the anode and cathode plates, the position of the pad body 1 on the anode and cathode plates is not easily offset, thereby ensuring installation accuracy and avoiding leakage of electrolyte or gas.

[0030] The bayonet 6 is a structure that is wide outside and narrow inside, and the outer angle of the bayonet 6 is sixty degrees. The bayonet 6 can provide a better sealing effect with the anode plate in the electrolytic cell, so that the pad body 1 can fit more closely on the surface of the anode plate to prevent the electrolyte or gas from leaking from the edge of the electrolytic cell.

[0031] A docking section 7 is provided in the positioning area 3, the positioning protrusion 4 is located at the top of the docking section 7, and a connecting section 8 is provided at one end of the docking section 7. The docking section 7 is connected to the sealing area 2 through the connecting section 8. When the positioning area 3 in the pad body 1 is connected with the anode and cathode plates in the electrolytic cell through the positioning protrusion 4, the sealing area 2 is pressed into the gap between the anode and cathode plates in the electrolytic cell through the connecting section 8.

[0032] A sealed section 9 is provided at the end of the docking section 7 away from the connecting section 8, and a positioning groove 10 is provided on the top of the sealed section 9. One end of the positioning groove 10 is recessed toward the side close to the positioning area 3. The positioning groove 10 can provide a better sealing effect with the cathode plate in the electrolytic cell, so that the pad body 1 can fit more closely on the surface of the cathode plate, and cooperate with the bayonet 6 to prevent the electrolyte or gas from leaking from the edge of the electrolytic cell.

[0033] An inner gasket 11 is provided in the sealing area 2, and the outer side of the inner gasket 11 is also covered with a rubber 5. The inner gasket 11 can cooperate with the positioning area 3 to completely fill the gap between the cathode and anode plates. The rubber 5 on the inner gasket 11 can make the sealing area 2 more stable when working in the electrolyte, reducing the possibility of it being chemically corroded.

[0034] A through hole 12 is provided on the outside of the inner gasket 11, and the through holes 12 are distributed along the contour line of the inner gasket 11. The rubber 5 is installed on the outside of the inner gasket 11 through the through holes 12. The through holes 12 can enable the rubber 5 to form a corresponding installation on the outside of the inner gasket 11 and allow any gas or liquid accumulated around the sealing area 2 to be released freely, thereby avoiding the formation of bubbles or liquid accumulation around the sealing area 2, which affects the sealing effect.

[0035] A diaphragm 13 is provided on the inner side of the inner gasket 11. The diaphragm 13 is located on the inner side of the sealing area 2 through the inner gasket 11. The diaphragm 13 can effectively isolate the medium between the outside of the pad body 1 and its surrounding environment, preventing the electrolyte or gas from leaking from one side of the pad body 1 to the other side.

[0036] When in use, the sealing area 2 with a relatively flat surface is fitted with the plate in the electrolytic cell. During this process, the pad body 1 is inserted into the cathode plate in the electrolytic cell through the protruding positioning protrusion 4 on the positioning area 3. The pad body 1 is increased with the anode plate in the electrolytic cell through the inwardly recessed bayonet 6 on the positioning area 3. By increasing the contact area with the anode plate, the friction between the pad body 1 and the anode plate is increased, so that when the pad body 1 is installed with the anode and cathode plates, the position of the pad body 1 on the anode and cathode plates is not easily offset, thereby ensuring installation accuracy and avoiding leakage of electrolyte or gas, and through the positioning groove 10 with the cathode plate in the electrolytic cell Provide a better sealing effect, so that the pad body 1 can fit more closely on the surface of the cathode plate, cooperate with the bayonet 6 to prevent the electrolyte or gas from leaking from the edge of the electrolytic cell, and at the same time, through the through hole 12, the rubber 5 forms a correspondingly installed composite structure on the outside of the inner gasket 11, reducing the corrosion of the electrolyte on the pad body 1, and allowing any gas or liquid accumulated around the sealing area 2 to be released freely, avoiding the formation of bubbles or liquid accumulation around the sealing area 2, thereby affecting the sealing effect, and effectively isolating the medium between the outside of the pad body 1 and its surrounding environment through the diaphragm 13, preventing the electrolyte or gas from leaking from one side of the pad body 1 to the other side.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A square electrolytic cell sealing gasket composite structure, comprising a gasket body (1), characterized in that: A sealing area (2) is provided in the pad body (1), and positioning areas (3) are provided at both ends of the sealing area (2); The sealing area (2) has a rectangular cross-section. The positioning areas (3) are symmetrically distributed on both sides of the sealing area (2). A positioning protrusion (4) is provided on the top of the positioning area (3). One end of the positioning protrusion (4) protrudes from the surface of the positioning area (3). A rubber sheet (5) is provided on the outer side of the positioning protrusion (4). The rubber sheet (5) covers the surfaces of the sealing area (2) and the positioning area (3). A bayonet (6) is arranged on the side of the positioning area (3) away from the positioning protrusion (4). One end of the bayonet (6) is recessed toward the side close to the positioning area (3).

2. A square electrolytic cell sealing gasket composite structure according to claim 1, characterized in that: The bayonet (6) is of a structure that is wide on the outside and narrow on the inside, and the outer side angle of the bayonet (6) is sixty degrees.

3. A square electrolytic cell sealing gasket composite structure according to claim 2, characterized in that: A docking section (7) is provided in the positioning area (3), the positioning protrusion (4) is located at the top of the docking section (7), a connecting section (8) is provided at one end of the docking section (7), and the docking section (7) is connected to the sealing area (2) via the connecting section (8).

4. A square electrolytic cell sealing gasket composite structure according to claim 3, characterized in that: A sealed section (9) is provided at one end of the docking section (7) away from the connecting section (8), a positioning groove (10) is provided at the top of the sealed section (9), and one end of the positioning groove (10) is recessed towards a side close to the positioning area (3).

5. A square electrolytic cell sealing gasket composite structure according to claim 4, characterized in that: An inner gasket (11) is provided in the sealing area (2), and the outer side of the inner gasket (11) is also covered with rubber (5).

6. A square electrolytic cell sealing gasket composite structure according to claim 5, characterized in that: The outer side of the inner gasket (11) is provided with through holes (12), the through holes (12) are distributed along the contour line of the inner gasket (11), and the rubber (5) is installed on the outer side of the inner gasket (11) through the through holes (12).

7. A square electrolytic cell sealing gasket composite structure according to claim 6, characterized in that: A diaphragm (13) is provided on the inner side of the inner gasket (11), and the diaphragm (13) is located on the inner side of the sealing area (2) through the inner gasket (11).

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