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CN-224227231-U - Sealing gasket for electrolytic tank

CN224227231UCN 224227231 UCN224227231 UCN 224227231UCN-224227231-U

Abstract

The utility model discloses a sealing gasket for an electrolytic tank, which comprises a gasket, an opening, a plurality of runner holes, a plurality of positioning holes and a plurality of stress release grooves, wherein the gasket is of a soft sheet-shaped structure, the opening is arranged at the center of the gasket, the runner holes, the positioning holes and the stress release grooves are arranged at the periphery of the opening, each positioning hole is arranged on a ring body in a group of three, at least one central line of a triangle formed by connecting lines of the same group of positioning Kong Zhongdian passes through the center of the ring body, the runner holes are uniformly arranged on the gasket, the runner holes are provided with a flexible stable structure for stabilizing a runner, the stress release grooves are uniformly arranged on the sealing gasket, and the stress release grooves are groove bodies with the same shape and size as the runner holes. The utility model adopts the stress release structure to release the stress of the sealing gasket caused by directional deformation after installation, thereby avoiding the damage of the sealing gasket. The device adopts the stress release groove structure to release the stress of the sealing gasket caused by directional deformation after installation, so as to avoid the damage of the sealing gasket.

Inventors

  • LI CHAOYANG

Assignees

  • 北京汉氢科技有限公司

Dates

Publication Date
20260512
Application Date
20250311

Claims (5)

  1. 1. The sealing gasket for the electrolytic tank is characterized by comprising a gasket (1), an opening (2), a plurality of runner holes (3), a plurality of positioning holes (4) and a plurality of stress release grooves (5), wherein the gasket (1) is of a soft sheet-shaped structure, the opening (2) is arranged at the center of the gasket (1), the runner holes (3), the positioning holes (4) and the stress release grooves (5) are arranged at the periphery of the opening (2), each three positioning holes (4) are arranged on a ring body in a group, at least one center line of a triangle formed by connecting points of the positioning holes (4) in the same group passes through the center of the ring body, the runner holes (3) are uniformly arranged on the gasket (1), the runner holes (3) are provided with flexible and stable structures for stabilizing the runner, the stress release grooves (5) are uniformly arranged on the gasket (1), and the stress release grooves (5) are groove bodies with the same shape and size as the runner holes (3).
  2. 2. The gasket for an electrolytic cell according to claim 1, wherein the flow passage hole (3) comprises a flow passage opening (31), a slope angle (32) and a reverse grooving (33), the opening (2) is a slotted hole, the slope angle (32) is arranged on the plate surface of the gasket (1) on one side of the circle of the periphery of the flow passage opening (31), the slope surface of the slope angle (32) is intersected with the plane of the gasket (1) at the position of the flow passage opening (31), and the reverse grooving (33) is arranged at the intersection line position of the top of the slope angle (32) and the plate surface of the gasket (1).
  3. 3. The gasket for an electrolytic cell according to claim 2, wherein the flow passage hole (3) further comprises a hard skeleton, the hard skeleton is of a hard annular sheet structure, the hard skeleton is arranged in the gasket (1) at the periphery of the opening (2), the hard skeleton is parallel to the upper and lower plate surfaces of the gasket (1), and the shape of the inner and outer rings of the hard skeleton is the same as that of the flow passage hole (31).
  4. 4. A gasket for an electrolytic cell according to claim 2, wherein the surface of the gasket (1) in which the stress relief groove (5) is formed and the surface of the gasket (1) in which the reverse groove (33) is formed are two opposed plate surfaces.
  5. 5. A gasket for an electrolytic cell according to claim 1, wherein the gasket (1) is made of rubber.

Description

Sealing gasket for electrolytic tank Technical Field The utility model relates to the field of hydrogen production by water electrolysis, in particular to a sealing gasket for an electrolytic tank. Background The electrolytic water hydrogen production is a process that water molecules are decomposed into hydrogen and oxygen under the action of direct current, and the whole water electrolysis reaction generating device is an electrolytic tank. The electrolytic cell is formed by a plurality of electrolytic cells in series, wherein each cell comprises a polar plate, a sealing gasket, a polar frame, an electrode and a diaphragm structure. In the prior art, the novel polar plate for the alkaline electrolytic tank is composed of a plate body and a polar frame, a sealing gasket made of PTFE (polytetrafluoroethylene) material is used between the plate body and the polar frame for sealing, the sealing gasket made of the PTFE material needs to be customized by special factories, the cost is high, the elasticity and the compressibility of the PTFE material are poor, the PTFE material tends to flow under high load, even the PTFE material breaks, and the sealing effect is weakened and potential safety hazards exist. In addition, in order to achieve a better sealing effect, after the assembly of the electrolytic cell is completed, pressurization is needed to seal each cell of the electrolytic cell. After pressurization, the sealing gasket between the electrode frame of the electrolytic tank and the electrode frame can be extruded to deform, and the deformation allowance can exceed the boundary part of the electrode frame, so that the smoothness of the flow of electrolyte in the flow channel of the electrolytic tank can be affected to a certain extent. There is a need for a gasket for an electrolytic cell that solves the above-described problems. Disclosure of utility model The utility model aims to solve the problems that in the prior art, PTFE materials of sealing gaskets are poor in elasticity and compressibility, tend to flow under high load and even break, so that the sealing effect is weakened and potential safety hazards exist. The utility model provides a sealing gasket for an electrolytic tank, which comprises a gasket, an opening, a plurality of runner holes, a plurality of positioning holes and a plurality of stress release grooves, wherein the gasket is of a soft sheet-shaped structure, the opening is arranged at the center of the gasket, the runner holes, the positioning holes and the stress release grooves are arranged at the periphery of the opening, each positioning hole is arranged on a ring body in a group of three, at least one central line of a triangle formed by connecting lines of the same group of positioning Kong Zhongdian passes through the center of the ring body, the runner holes are uniformly arranged on the gasket, the runner holes are provided with a flexible stable structure for stabilizing a runner, the stress release grooves are uniformly arranged on the sealing gasket, and the stress release grooves are groove bodies with the same shape and size as the runner holes. The sealing gasket for the electrolytic tank, which is disclosed by the utility model, is used as a preferable mode, the runner hole comprises a runner opening, a slope angle and a reverse grooving, the runner opening is a slotted hole, the slope angle is arranged on the plate surface of a gasket at one side of the periphery of the runner opening, the slope surface of the slope angle is intersected with the gasket plane at the position of the runner opening, and the reverse grooving is arranged at the intersection line position of the top of the slope angle and the plate surface of the gasket. According to the sealing gasket for the electrolytic tank, as an optimal mode, the runner hole further comprises a hard framework, the hard framework is of a hard annular sheet structure, the hard framework is arranged in the gasket at the periphery of the runner opening, the hard framework is parallel to the upper plate surface and the lower plate surface of the gasket, and the shape of the inner ring and the outer ring of the hard framework is the same as that of the runner opening. According to the sealing gasket for the electrolytic tank, as an optimal mode, the surface of the gasket where the stress relief groove is formed and the surface of the gasket where the reverse groove is formed are two opposite plate surfaces. According to the sealing gasket for the electrolytic tank, rubber materials are adopted as the gasket in an optimal mode. The utility model has the following beneficial effects: (1) The device adopts the stress release groove structure to release the stress of the sealing gasket caused by directional deformation after installation, thereby avoiding the damage of the sealing gasket; (2) The device sets up fluting and slope angle through runner hookup location for the contact deformation that the runner caused reduces,