Sealing gasket for water-to-hydrogen electrolytic cell

Abstract

The utility model discloses a sealing gasket for a water hydrogen production electrolytic bath, which comprises a gasket and a through hole, and the gasket is arranged, and an upper reinforcing layer and a lower reinforcing layer are tightly attached to the upper side and the lower side of a silica gel gasket, so that the strength and the wear resistance of the gasket are improved; the upper anti-corrosion layer and the lower anti-corrosion layer have the anti-corrosion protection effect on the upper reinforcing layer, the silica gel gasket and the lower reinforcing layer, the corrosion resistance and the toughness of the silica gel gasket are improved, the upper anti-corrosion layer is arranged, the binding force with the coating layer is enhanced through primer, the binding property of the primer and the coating layer is improved through the binding layer, and the service life of the silica gel gasket is prolonged. Meanwhile, through the binding layer, the characteristics of impact resistance and electric insulation resistance are added between the binding layer and the upper reinforcing layer.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing gaskets, in particular to a sealing gasket for a water hydrogen production electrolyzer. Background Art

[0002] The water electrolysis hydrogen production device uses water as raw material. It is a general term for a combination of water electrolyzers, hydrogen (oxygen) gas-liquid separators, hydrogen (oxygen) gas coolers, hydrogen (oxygen) gas scrubbers and other equipment. During the installation and operation of the equipment, the gasket flow channel holes are subjected to large shear forces, causing large irregular deformations of the gaskets or even damage, thereby affecting the gas-liquid flow rate. There is also a risk of gasket breakage and blocking the flow channel.

[0003] For example, the publication number CN202223477014.1 discloses "A sealing gasket for an electrolyzer and a filter press electrolyzer for producing hydrogen by electrolysis of water". When the sealing gasket for the electrolyzer is subjected to a large shear force, it will bend toward the smaller side of the flow channel, and the magnetic attraction portion will rely on its magnetic attraction to tightly adsorb on the inner surface of the flow channel hole of the end pressure plate, thereby effectively preventing the gasket from being irregularly deformed by shear and blocking the gas-liquid flow channel; at the same time, even if the shear force is large enough to destroy the sealing gasket for the electrolyzer, due to the action of the magnetic attraction, the separated part of the gasket can still be adsorbed on the inner surface of the flow channel hole of the end pressure plate to prevent blocking the flow channel and affecting the gas-liquid flow rate.

[0004] An electrolytic cell is composed of dozens to hundreds of unit cells. After the electrolytic cell has been used for a certain period of time, the gasket will be damaged due to long-term use, which will cause air leakage or liquid leakage, which will cause the electrolytic cell to leak and stop, making the electrolytic cell unusable. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a sealing gasket for a water-to-hydrogen electrolyzer, which solves the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a sealing gasket for a water hydrogen production electrolyzer, comprising a gasket and a through hole, the surface of the gasket being provided with a through hole, the gasket comprising an upper anti-corrosion layer, an upper reinforcement layer, a silicone gasket, a lower reinforcement layer and a lower anti-corrosion layer, the upper anti-corrosion layer covering the outer surface of the upper reinforcement layer, the upper reinforcement layer covering the outer surface of the silicone gasket, the silicone gasket covering the outer surface of the lower reinforcement layer, the lower reinforcement layer covering the outer surface of the anti-corrosion layer, the outer surfaces of the upper anti-corrosion layer, the upper reinforcement layer, the silicone gasket, the lower reinforcement layer and the lower anti-corrosion layer are all provided with through holes.

[0009] Optionally, the upper anti-corrosion layer includes a primer, a coating layer and a wrapping layer, the primer covers the outer surface of the coating layer, the coating layer covers the outer surface of the wrapping layer, the wrapping layer covers the outer surface of the upper reinforcement layer, and the outer surfaces of the primer, coating layer and wrapping layer are all provided with through holes.

[0010] Optionally, the radii of the upper anti-corrosion layer and the lower anti-corrosion layer are equal, and the radii of the upper reinforcement layer and the lower reinforcement layer are equal.

[0011] Optionally, the upper reinforcement layer and the lower reinforcement layer are both made of glass fiber, which has excellent specific strength, corrosion resistance and durability.

[0012] Optionally, the upper anti-corrosion layer and the upper reinforcement layer are tightly fitted with the lower anti-corrosion layer and the lower reinforcement layer on the upper and lower sides of the silicone gasket respectively, thereby enhancing the corrosion resistance and toughness of the silicone gasket through the tight fit.

[0013] Optionally, the radii of the primer, coating layer and wrapping layer are all equal.

[0014] Optionally, the coating layer is made of epoxy resin material, which has excellent adhesion and toughness.

[0015] (III) Beneficial effects

[0016] The utility model provides a sealing gasket for a water hydrogen production electrolyzer. It has the following beneficial effects: by setting the gasket, the upper and lower reinforcing layers are closely fitted with the upper and lower sides of the silicone gasket, thereby improving the strength and wear resistance of the gasket, and the upper and lower anti-corrosion layers have an anti-corrosion protection effect on the upper reinforcing layer, the silicone gasket and the lower reinforcing layer, and increase the corrosion resistance and toughness of the silicone gasket.

[0017] The utility model provides a sealing gasket for a water hydrogen production electrolyzer, which has the following beneficial effects: by setting an upper anti-corrosion layer, the adhesion between the primer and the coating layer is enhanced, and the adhesion between the primer and the coating layer is increased by the wrapping layer, and at the same time, the wrapping layer increases the impact resistance and electrical insulation properties between the upper reinforcement layer and the upper reinforcement layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the plane structure of the gasket of the utility model;

[0021] Figure 4 It is a schematic diagram of the planar structure of the upper anti-corrosion layer of the utility model.

[0022] In the figure: gasket-1, through hole-2, upper anti-corrosion layer-11, upper reinforcement layer-12, silicone gasket-13, lower reinforcement layer-14, lower anti-corrosion layer-15, primer-111, coating layer-112, wrapping layer-113. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 and 2 The utility model provides a technical solution for a sealing gasket for a water-hydrogen electrolyzer: a sealing gasket for a water-hydrogen electrolyzer, comprising a gasket 1 and a through hole 2, wherein the through hole 2 is opened on the surface of the gasket 1.

[0025] See also Figure 3 The utility model provides a technical solution for a sealing gasket for a water-hydrogen electrolyzer: a sealing gasket for a water-hydrogen electrolyzer, the gasket 1 comprises an upper anti-corrosion layer 11, an upper reinforcing layer 12, a silicone gasket 13, a lower reinforcing layer 14 and a lower anti-corrosion layer 15, the upper anti-corrosion layer 11 covers the outer surface of the upper reinforcing layer 12, the upper reinforcing layer 12 covers the outer surface of the silicone gasket 13, the silicone gasket 13 covers the outer surface of the lower reinforcing layer 14, the lower reinforcing layer 14 covers the outer surface of the anti-corrosion layer 15, the upper anti-corrosion layer 11, the upper reinforcing layer 12, the silicone gasket 13, the lower reinforcing layer 14 The outer surfaces of the upper anti-corrosion layer 14 and the lower anti-corrosion layer 15 are both provided with through holes 2, the radii of the upper anti-corrosion layer 11 and the lower anti-corrosion layer 15 are equal, the radii of the upper reinforcement layer 12 and the lower reinforcement layer 14 are equal, the materials of the upper reinforcement layer 12 and the lower reinforcement layer 14 are both made of glass fiber, which has excellent specific strength, corrosion resistance and durability. The upper anti-corrosion layer 11 and the upper reinforcement layer 12 and the lower anti-corrosion layer 15 and the lower reinforcement layer 14 are respectively tightly fitted to the upper and lower sides of the silicone gasket 13, thereby enhancing the corrosion resistance and toughness of the silicone gasket 13 through the tight fitting characteristics.

[0026] See also Figure 4The utility model provides a technical solution for a sealing gasket for a water-to-hydrogen electrolyzer: a sealing gasket for a water-to-hydrogen electrolyzer, an upper anti-corrosion layer 11 includes a primer 111, a coating layer 112 and a wrapping layer 113, the primer 111 covers the outer surface of the coating layer 112, the coating layer 112 covers the outer surface of the wrapping layer 113, the wrapping layer 113 covers the outer surface of the upper reinforcement layer 12, the outer surfaces of the primer 111, the coating layer 112 and the wrapping layer 113 are all provided with through holes 2, the radii of the primer 111, the coating layer 112 and the wrapping layer 113 are equal, the coating layer 112 is made of epoxy resin material, and has excellent adhesion and toughness.

[0027] When in use, the upper reinforcing layer 12 and the lower reinforcing layer 14 are closely attached to the upper and lower sides of the silicone gasket 13, thereby improving the strength and wear resistance of the gasket, and the primer 111 is enhanced to enhance the bonding force with the coating layer 112, and the wrapping layer 113 is used to increase the adhesion between the primer 111 and the coating layer 112, and at the same time, the wrapping layer 113 is used to increase the impact resistance and electrical insulation properties between the upper reinforcing layer 12;

[0028] Furthermore, the upper anti-corrosion layer 11 and the lower anti-corrosion layer 15 provide anti-corrosion protection for the upper reinforcing layer 12, the silicone gasket 13 and the lower reinforcing layer 14, and increase the corrosion resistance and toughness of the silicone gasket 13, thereby improving the durability of the silicone gasket 13 to the electrolytic cell and preventing it from being easily damaged.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing gasket for a water-to-hydrogen electrolyzer, comprising a gasket (1) and a through hole (2); Features: The surface of the gasket (1) is provided with a through hole (2), and the gasket (1) comprises an upper anti-corrosion layer (11), an upper reinforcement layer (12), a silicone gasket (13), a lower reinforcement layer (14) and a lower anti-corrosion layer (15), wherein the upper anti-corrosion layer (11) covers the outer surface of the upper reinforcement layer (12), the upper reinforcement layer (12) covers the outer surface of the silicone gasket (13), the silicone gasket (13) covers the outer surface of the lower reinforcement layer (14), and the lower reinforcement layer (14) covers the outer surface of the anti-corrosion layer (15), and the outer surfaces of the upper anti-corrosion layer (11), the upper reinforcement layer (12), the silicone gasket (13), the lower reinforcement layer (14) and the lower anti-corrosion layer (15) are all provided with a through hole (2).

2. A sealing gasket for a water-to-hydrogen electrolyzer according to claim 1, characterized in that: The upper anti-corrosion layer (11) comprises a primer (111), a coating layer (112) and a wrapping layer (113), wherein the primer (111) covers the outer surface of the coating layer (112), the coating layer (112) covers the outer surface of the wrapping layer (113), and the wrapping layer (113) covers the outer surface of the upper reinforcing layer (12), and the outer surfaces of the primer (111), the coating layer (112) and the wrapping layer (113) are all provided with through holes (2).

3. The sealing gasket for a water-to-hydrogen electrolyzer according to claim 1, characterized in that: The radii of the upper anti-corrosion layer (11) and the lower anti-corrosion layer (15) are equal, and the radii of the upper reinforcement layer (12) and the lower reinforcement layer (14) are equal.

4. The sealing gasket for a water-to-hydrogen electrolyzer according to claim 1, characterized in that: The upper reinforcement layer (12) and the lower reinforcement layer (14) are both made of glass fiber.

5. The sealing gasket for a water-to-hydrogen electrolyzer according to claim 1, characterized in that: The upper anti-corrosion layer (11) and the upper reinforcement layer (12) and the lower anti-corrosion layer (15) and the lower reinforcement layer (14) are respectively arranged in close contact with the upper and lower sides of the silicone gasket (13).

6. A sealing gasket for a water-to-hydrogen electrolyzer according to claim 2, characterized in that: The radii of the primer (111), the coating layer (112) and the wrapping layer (113) are all equal.

7. The sealing gasket for a water-to-hydrogen electrolyzer according to claim 2, characterized in that: The coating layer (112) is made of epoxy resin material.

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