Carbon paper clamping device for water electrolyser

Abstract

The utility model relates to the technical field of hydrogen energy, and particularly discloses a water electrolyzer carbon paper clamping device which comprises a front end plate and a rear end plate which are respectively positioned at two ends of an electrolyzer, locking components are arranged on the front end plate and the rear end plate, pull rods are connected onto the front end plate and the rear end plate, and the pull rods are connected with the front end plate and the rear end plate. The locking assembly comprises a kidney-shaped gasket and a disc-shaped spring which are in sliding connection with the pull rod, the locking assembly compresses the disc-shaped spring on the pull rod through the kidney-shaped gasket, the front end plate and the rear end plate are made to be close to each other to clamp carbon paper in the electrolytic cell, the carbon paper limited by the pressing piece cannot be dislocated in the small electrolysis chamber, and therefore the carbon paper can be clamped in the small electrolysis chamber. And the hydrogen production efficiency of the water electrolyser is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen energy, in particular to a carbon paper clamping device for a water electrolyzer. Background Art

[0002] The water electrolyzer is a structure formed by stacking and fastening multiple plates with different functions. The water electrolyzer is composed of multiple small electrolysis chambers. The carbon paper placed between the anode plate and the cathode plate in the small electrolysis chamber is easily misaligned, resulting in the carbon paper not being better applied.

[0003] A Chinese patent document CN2188099Y discloses a water electrolyzer, including an end pressure plate, an end plate between two end pressure plates, a plate, an insulating sealing gasket, a tie rod bolt and a nut, wherein the outer end surface of the end pressure plate is provided with a gas outlet, an alkali liquid inlet and a sewage outlet. The advantage is that the installation and maintenance of the electrolyzer are quite convenient, and unsafe factors are eliminated. However, the technical solution for preventing the dislocation of carbon paper is not disclosed.

[0004] Therefore, we provide a carbon paper clamping device for a water electrolyzer, which limits the carbon paper by setting an annular pressing sheet to prevent it from being misplaced and affecting the hydrogen production efficiency of the water electrolyzer. Utility Model Content

[0005] In order to solve the above-mentioned problems existing in the prior art, the utility model provides a carbon paper clamping device for a water electrolyzer. When the nuts at both ends of the pull rod are tightened, the disc spring plays a buffering role, the front end plate and the rear end plate are close to each other, and the anode plate and the cathode plate therebetween are close to each other, so that the pressing sheet presses the carbon paper, and the carbon paper limited by the pressing sheet will not be misplaced in the small electrolysis chamber, thereby ensuring the hydrogen production efficiency of the water electrolyzer.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A carbon paper clamping device for a water electrolyzer comprises a front end plate and a rear end plate respectively located at both ends of the electrolyzer, wherein the front end plate and the rear end plate are both provided with locking assemblies, and pull rods are connected to the front end plate and the rear end plate, and the locking assembly comprises a waist-shaped gasket and a disc spring slidably connected to the pull rod, and the locking assembly compresses the disc spring on the pull rod through the waist-shaped gasket, so that the front end plate and the rear end plate are close to each other to clamp the carbon paper in the electrolyzer.

[0008] Furthermore, the front end plate and the rear end plate are both provided with a plurality of matching holes in a circumferential array, and the front end plate and the rear end plate are slidably connected with the pull rod through the matching holes.

[0009] Furthermore, both ends of the pull rod are threadedly connected with nuts, the nut is located on one side of the waist-shaped gasket, and the disc spring is located on the other side of the waist-shaped gasket.

[0010] Furthermore, a plurality of waist-shaped gaskets are distributed and sleeved on two adjacent pull rods.

[0011] Furthermore, the electrolytic cell is composed of an electrolytic chamber, and the electrolytic chamber includes an anode plate and a cathode plate.

[0012] Furthermore, the anode plate is provided with an anode secondary electrode net, the cathode plate is provided with a cathode secondary electrode net, carbon paper and a pressing sheet are provided between the anode plate and the cathode plate, and the front end plate is provided with an air outlet, an alkali solution inlet and a sewage outlet.

[0013] The diameter of the pressing sheet is larger than the diameter of the carbon paper. When the nuts at both ends of the pull rod are tightened, the front end plate and the rear end plate approach each other, and the anode plate and the cathode plate therebetween approach each other, so that the pressing sheet presses the carbon paper. The carbon paper limited by the pressing sheet will not be misplaced in the small electrolysis chamber, thereby ensuring the hydrogen production efficiency of the water electrolyzer.

[0014] The beneficial effect of the utility model is that when the nuts at both ends of the pull rod are tightened, the front end plate and the rear end plate approach each other, and the anode plate and the cathode plate therebetween approach each other, so that the pressing sheet presses and holds the carbon paper, and the carbon paper limited by the pressing sheet will not be misplaced in the small electrolysis chamber, thereby ensuring the hydrogen production efficiency of the water electrolyzer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is the first stereogram of the utility model;

[0017] Figure 2 It is a second stereoscopic view of the utility model;

[0018] Figure 3 It is an exploded view of the utility model;

[0019] Figure 4 This is a schematic diagram of the front end plate structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the waist-shaped gasket, nut and disc spring structure of the utility model;

[0021] Figure 6 It is an exploded view of the electrolysis chamber in the utility model.

[0022] Description of main component symbols:

[0023] In the figure: 1, front end plate; 2, rear end plate; 3, pull rod; 4, electrolytic cell; 5, disc spring; 6, nut; 7, waist-shaped gasket; 8, matching hole; 9, anode plate; 901, anode and secondary electrode mesh; 10, cathode plate; 1011, cathode and secondary electrode mesh; 11, carbon paper; 12, pressing sheet. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation methods, structures, features and effects of the utility model are clearly and completely described below in combination with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0025] In the description of the present application, it should be understood that the orientation or position relationship indicated by "inside" or "outside" etc. is based on the orientation or position described in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present application.

[0026] See also Figures 1 to 6 , which is a carbon paper clamping device for a water electrolyzer disclosed in the utility model, includes a front end plate 1 and a rear end plate 2 respectively located at both ends of an electrolytic cell 4, a locking assembly is provided on the front end plate 1 and the rear end plate 2, a pull rod 3 is connected to the front end plate 1 and the rear end plate 2, the locking assembly includes a waist-shaped gasket 7 and a disc spring 5 slidably connected to the pull rod 3, the locking assembly compresses the disc spring 5 on the pull rod 3 through the waist-shaped gasket 7, so that the front end plate 1 and the rear end plate 2 are close to each other to clamp the carbon paper 11 in the electrolytic cell 4.

[0027] See also Figure 3 to Figure 4 A plurality of matching holes 8 are arranged in a circumferential array on the front end plate 1 and the rear end plate 2 , and the front end plate 1 and the rear end plate 2 are slidably connected with the pull rod 3 through the matching holes 8 .

[0028] In this embodiment, it should be noted that: ten matching holes 8 are arranged on both the front end plate 1 and the rear end plate 2 , and the matching holes 8 are arranged at the flanges of the front end plate 1 and the rear end plate 2 .

[0029] See also Figure 2 and Figure 5 Both ends of the pull rod 3 are threadedly connected with nuts 6, the nut 6 is located on one side of the waist-shaped gasket 7, and the disc spring 5 is located on the other side of the waist-shaped gasket 7. Multiple waist-shaped gaskets 7 are distributed and sleeved on two adjacent pull rods 3.

[0030] In this embodiment, it should be noted that the waist-shaped gasket 7 is provided to facilitate the connection of the two tie rods 3 and to facilitate the operator to adjust the nut 6 on the tie rod 3 .

[0031] See also Figure 3 and Figure 6 The electrolytic cell 4 is composed of an electrolytic chamber, which includes an anode plate 9 and a cathode plate 10. The anode plate 9 is provided with an anode secondary electrode net 901, and the cathode plate 10 is provided with a cathode secondary electrode net 1011. A pressing sheet 12 is provided between the anode plate 9 and the cathode plate 10, and the front end plate 1 is provided with an air outlet, an alkali solution inlet and a sewage outlet.

[0032] In this embodiment, it should be noted that the diameter of the pressing sheet 12 is greater than the diameter of the carbon paper 11 . This configuration enables the pressing sheet 12 to press the edge of the carbon paper 11 .

[0033] The working principle and use process of the utility model are as follows: when the nuts 6 at both ends of the pull rod 3 are tightened, the front end plate 1 and the rear end plate 2 approach each other, and the anode plate 9 and the cathode plate 10 therebetween approach each other, so that the pressing sheet 12 presses and holds the carbon paper 11, and the carbon paper 11 limited by the pressing sheet 12 will not be misplaced in the small electrolysis chamber, thereby ensuring the hydrogen production efficiency of the water electrolysis cell 4.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A carbon paper clamping device for a water electrolyzer, comprising a front end plate (1) and a rear end plate (2) respectively located at two ends of an electrolyzer (4), characterized in that: The front end plate (1) and the rear end plate (2) are both provided with locking assemblies, and the front end plate (1) and the rear end plate (2) are connected with a pull rod (3). The locking assembly comprises a waist-shaped gasket (7) and a disc spring (5) which are slidably connected to the pull rod (3). The locking assembly compresses the disc spring (5) on the pull rod (3) through the waist-shaped gasket (7), so that the front end plate (1) and the rear end plate (2) are brought close to each other to clamp the carbon paper (11) in the electrolytic cell (4).

2. A carbon paper clamping device for a water electrolyzer according to claim 1, characterized in that: The front end plate (1) and the rear end plate (2) are both provided with a plurality of matching holes (8) in a circumferential array, and the front end plate (1) and the rear end plate (2) are slidably connected to the pull rod (3) via the matching holes (8).

3. The carbon paper clamping device for a water electrolyzer according to claim 1, characterized in that: Both ends of the pull rod (3) are threadedly connected with nuts (6), the nut (6) is located on one side of the waist-shaped gasket (7), and the disc spring (5) is located on the other side of the waist-shaped gasket (7).

4. The carbon paper clamping device for a water electrolyzer according to claim 1, characterized in that: A plurality of waist-shaped gaskets (7) are distributed and sleeved on two adjacent pull rods (3).

5. The carbon paper clamping device for a water electrolyzer according to claim 1, characterized in that: The electrolytic cell (4) is composed of an electrolysis chamber, which includes an anode plate (9) and a cathode plate (10).

6. A carbon paper clamping device for a water electrolyzer according to claim 5, characterized in that: The anode plate (9) is provided with an anode secondary electrode net (901), the cathode plate (10) is provided with a cathode secondary electrode net (1011), a pressing sheet (12) is provided between the anode plate (9) and the cathode plate (10), and the front end plate (1) is provided with an air outlet, an alkali solution inlet and a sewage outlet.

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