Diaphragm gasket for water electrolysis hydrogen production

Abstract

The diaphragm gasket comprises a base plate, a mounting groove is formed in the front side of the base plate, a circular groove is formed in the rear side of the inner wall of the mounting groove, a plurality of first through holes are formed in the rear side of the inner wall of the circular groove, and a circular plate is movably mounted in an inner cavity of the mounting groove; the device comprises a circular plate, the front side and the rear side of the circular plate are both arranged in a concave mode, an abutting ring is movably installed on the rear side of the inner wall of the circular plate, and a diaphragm body is attached to the rear side of the abutting ring. Through threaded connection between a circular plate and a mounting groove, the circular plate slowly moves towards the interior of the mounting groove, at the moment, an abutting ring on the circular plate extrudes the edge of a diaphragm body, the diaphragm body can be stably mounted in the circular groove, under cooperation of a base plate and the circular plate, deformation of the diaphragm body can be avoided, and the service life of the diaphragm body is prolonged. And the sealing effect is damaged.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen production by water electrolysis, and specifically relates to a diaphragm gasket for hydrogen production by water electrolysis. Background Technique

[0002] Hydrogen production by water electrolysis is a relatively convenient method for producing hydrogen. Direct current is passed through an electrolytic cell filled with electrolyte, and water molecules undergo an electrochemical reaction on the electrodes, decomposing into hydrogen and oxygen. In this process, the cooperation of a diaphragm is usually required. The diaphragm is used to separate the anode and cathode, prevent direct contact, and promote the electrolysis reaction of water to increase the hydrogen production.

[0003] The diaphragm gaskets of the prior art usually have a relatively simple structure. When applied inside the electrolytic cell for hydrogen production by water electrolysis, the single diaphragm gasket has a poor partitioning effect. Moreover, over time, the diaphragm gasket is prone to bending and deformation, resulting in sealing problems, and then the two separated spaces are re-fused together, seriously affecting the total amount of hydrogen produced subsequently.

[0004] Therefore, this application proposes a diaphragm gasket for hydrogen production by water electrolysis here. Content of the Utility Model

[0005] The purpose of the utility model is to provide a diaphragm gasket for hydrogen production by water electrolysis, so as to solve the problems proposed in the above background technique. This technical solution can fix the diaphragm body and achieve a better sealing effect and partitioning effect.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A diaphragm gasket for hydrogen production by water electrolysis, including a backing plate. An installation groove is opened on the front side of the backing plate. A circular groove is opened on the rear side of the inner wall of the installation groove. A plurality of first through holes are opened on the rear side of the inner wall of the circular groove. And a circular plate is movably installed in the inner cavity of the installation groove. Both the front and rear sides of the circular plate are recessed. And a pressing ring is movably installed on the rear side of the inner wall of the circular plate. The rear side of the pressing ring is attached to a diaphragm body. The diaphragm body is installed in the inner cavity of the circular groove. A plurality of second through holes are opened on the front side of the inner wall of the circular plate.

[0007] Preferably, internal threads are opened on the inner wall of the installation groove, external threads are opened on the outer wall of the circular plate, and the circular plate is threadedly connected to the inner cavity of the installation groove.

[0008] Preferably, a plurality of arc-shaped grooves are opened on the front side of the inner wall of the circular plate.

[0009] Preferably, a plurality of arc-shaped pads are arranged in the inner cavity of the front side of the circular plate, and the plurality of arc-shaped pads are respectively fixedly installed in the inner cavities of the corresponding arc-shaped grooves.

[0010] Preferably, a plurality of cylinders are provided on the front side of the pressing ring. The plurality of cylinders are fixedly connected to the inner wall of the circular plate, and a spring is fixedly connected to one side of the inner wall of each of the plurality of cylinders. One end of the spring is fixedly connected to a round rod, and one end of the round rod extends to the outside of the cylinder and is fixedly connected to the side wall of the pressing ring.

[0011] Preferably, the number of the plurality of arc-shaped grooves and the number of the plurality of arc-shaped pads are both set to six.

[0012] Preferably, the plurality of first through holes and the plurality of second through holes are both arranged in a uniformly distributed circular pattern.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By providing a pressing ring, a circular plate and a mounting groove, after placing the diaphragm body inside the circular groove, the circular plate is made to slowly move towards the inside of the mounting groove by means of the threaded connection between the circular plate and the mounting groove. At this time, the pressing ring on the circular plate squeezes the edge of the diaphragm body, enabling the diaphragm body to be stably installed inside the circular groove. Moreover, with the cooperation of the backing plate and the circular plate, it is possible to prevent the diaphragm body from deforming and causing damage to the sealing effect.

[0015] 2. By providing arc-shaped grooves and arc-shaped pads, it is convenient to apply force to the circular plate subsequently, enabling the circular plate to be conveniently threadedly connected inside the mounting groove and also enabling it to be conveniently disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an external structural schematic diagram of the front side view of the present utility model;

[0017] Figure 2 is an external structural schematic diagram of the rear side view of the present utility model;

[0018] Figure 3 is a sectional structural schematic diagram of the present utility model;

[0019] Figure 4 is a structural schematic diagram of the backing plate of the present utility model;

[0020] Figure 5 is a rear side structural schematic diagram of the circular plate of the present utility model.

[0021] In the figure: 1, backing plate; 2, mounting groove; 3, circular groove; 4, first through hole; 5, internal thread; 6, circular plate; 7, arc-shaped groove; 8, arc-shaped pad; 9, second through hole; 10, diaphragm body; 11, cylinder; 12, spring; 13, round rod; 14, pressing ring; 15, external thread. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a diaphragm gasket for hydrogen production by electrolysis of water and electricity, including a backing plate 1. An installation groove 2 is provided on the front side of the backing plate 1. A circular groove 3 is provided on the rear side of the inner wall of the installation groove 2. A plurality of first through holes 4 are provided on the rear side of the inner wall of the circular groove 3. And a circular plate 6 is movably installed in the inner cavity of the installation groove 2. Both the front and rear sides of the circular plate 6 are recessed. And a pressing ring 14 is movably installed on the rear side of the inner wall of the circular plate 6. The rear side of the pressing ring 14 is attached to a diaphragm body 10. The diaphragm body 10 is installed in the inner cavity of the circular groove 3. A plurality of second through holes 9 are provided on the front side of the inner wall of the circular plate 6. The plurality of first through holes 4 and the plurality of second through holes 9 are both arranged in a circular and evenly distributed manner.

[0024] Please refer to Figure 4 and Figure 5 , internal threads 5 are provided on the inner wall of the installation groove 2, external threads 15 are provided on the outer wall of the circular plate 6, and the circular plate 6 is threadedly connected to the inner cavity of the installation groove 2. Through this setting, the installation between the circular plate 6 and the installation groove 2 is more reliable, and the sealing effect after installation can be ensured.

[0025] Please refer to Figure 1 and Figure 3 , a plurality of arc-shaped grooves 7 are provided on the front side of the inner wall of the circular plate 6. Through this setting, when the circular plate 6 is rotated to achieve threaded connection with the installation groove 2, it is more convenient to apply force to the circular plate 6.

[0026] Please refer to Figure 1 and Figure 3 , a plurality of arc-shaped pads 8 are provided in the inner cavity of the front side of the circular plate 6. The plurality of arc-shaped pads 8 are respectively fixedly installed in the inner cavities of the corresponding arc-shaped grooves 7. The number of both the plurality of arc-shaped grooves 7 and the plurality of arc-shaped pads 8 is six. Through this setting, the comfort of the staff's fingers when inserted into the arc-shaped grooves 7 can be increased, and at the same time, the generation of barbs inside the arc-shaped grooves 7 can be avoided, which may cause harm to the hands of the staff.

[0027] Please refer to Figure 3 and Figure 5, several cylinders 11 are arranged on the front side of the pressing ring 14. The several cylinders 11 are all fixedly connected to the inner wall of the circular plate 6. One side of the inner wall of each of the several cylinders 11 is fixedly connected with a spring 12. One end of the spring 12 is fixedly connected with a round rod 13. One end of the round rod 13 extends to the outside of the cylinder 11 and is fixedly connected to the side wall of the pressing ring 14. Through this setting, the diaphragm body 10 can be pressed, so that the installation of the diaphragm body 10 can be more secure.

[0028] Working principle: When this application is in use, first place the diaphragm body 10 inside the circular groove 3, then align the circular plate 6 with the installation groove 2, and use the external threads 15 on the outside of the circular plate 6 and the internal threads 5 on the inner wall of the installation groove 2 to achieve threaded connection between the circular plate 6 and the installation groove 2. As the circular plate 6 gradually enters the installation groove 2, the pressing ring 14 provided on the inner side of the circular plate 6 will come into contact with the placed diaphragm body 10 in advance. As the circular plate 6 continues to rotate and move, the pressing ring 14 will push a plurality of round rods 13 to move, thereby causing the round rods 13 to compress the springs 12 inside the corresponding cylinders 11. The springs 12 exert elastic force and cooperate with the circular plate 6 to improve the installation stability of the diaphragm body 10. The first through holes 4 on the inner wall of the circular groove 3 and the second through holes 9 on the circular plate 6 can ensure the permeability of the diaphragm body 10. At the same time, the circular plate 6 cooperates with the backing plate 1 to avoid the problem that the diaphragm body 10 is deformed and the sealing effect is damaged, ensuring the hydrogen production.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diaphragm gasket for producing hydrogen by water electrolysis, comprising a gasket (1), characterized in that: The backing plate (1) is provided with a mounting groove (2) on the front side, a circular groove (3) is provided on the rear side of the inner wall of the mounting groove (2), a plurality of No. 1 through holes (4) are provided on the rear side of the inner wall of the circular groove (3), and a circular plate (6) is movably installed in the inner cavity of the mounting groove (2), the front and rear sides of the circular plate (6) are both recessed, and a pressure ring (14) is movably installed on the rear side of the inner wall of the circular plate (6), a diaphragm body (10) is attached to the rear side of the pressure ring (14), and the diaphragm body (10) is installed in the inner cavity of the circular groove (3), and a plurality of No. 2 through holes (9) are provided on the front side of the inner wall of the circular plate (6).

2. A diaphragm gasket for producing hydrogen by water electrolysis according to claim 1, characterized in that: An internal thread (5) is provided on the inner wall of the installation groove (2), an external thread (15) is provided on the outer wall of the circular plate (6), and the circular plate (6) is threadedly connected to the inner cavity of the installation groove (2).

3. The diaphragm gasket for producing hydrogen by water electrolysis according to claim 1, characterized in that: A plurality of arc-shaped grooves (7) are provided on the front side of the inner wall of the circular plate (6).

4. A diaphragm gasket for producing hydrogen by water electrolysis according to claim 3, characterized in that: The front inner cavity of the circular plate (6) is provided with a plurality of arc-shaped pads (8), and the plurality of arc-shaped pads (8) are respectively fixedly mounted in the inner cavities of the corresponding arc-shaped grooves (7).

5. The diaphragm gasket for producing hydrogen by water electrolysis according to claim 1, characterized in that: A plurality of cylinders (11) are arranged on the front side of the pressure ring (14), and the plurality of cylinders (11) are fixedly connected to the inner wall of the circular plate (6), and a spring (12) is fixedly connected to one side of the inner wall of the plurality of cylinders (11), and one end of the spring (12) is fixedly connected to a round rod (13), and one end of the round rod (13) extends to the outside of the cylinder (11) and is fixedly connected to the side wall of the pressure ring (14).

6. A diaphragm gasket for producing hydrogen by water electrolysis according to claim 3, characterized in that: The number of the plurality of arc-shaped grooves (7) and the number of the plurality of arc-shaped pads (8) are both six.

7. The diaphragm gasket for producing hydrogen by water electrolysis according to claim 1, characterized in that: The plurality of No. 1 through holes (4) and the plurality of No. 2 through holes (9) are evenly distributed in a ring shape.

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