End pressing plate of water electrolysis equipment

Abstract

The utility model relates to a water electrolysis equipment end pressing plate which comprises a plate body, a sealing ring is arranged at one end of the plate body in the thickness direction, a plurality of penetrating holes are formed in the position, outside the sealing ring, of the plate body and penetrate through the two ends of the plate body in the thickness direction, a plurality of end holes are formed in the position, inside the sealing ring, of the plate body, and the end holes penetrate through the two ends of the plate body in the thickness direction. A plurality of side holes are formed in the side wall of the plate body, one ends of the side holes penetrate through the side wall of the plate body, and the other ends of the side holes penetrate through gaps between the penetrating holes in the sealing ring and penetrate through the end, provided with the sealing ring, of the plate body. The method has the effect of reducing the influence of interface position replacement on the production efficiency.

Description

Technical Field

[0001] This application relates to the field of water electrolysis hydrogen production technology, and in particular to an end plate of a water electrolysis device. Background Technology

[0002] The electrolyzer is the core component of the water electrolysis hydrogen production equipment. Its main structure consists of alternating stacked electrode plates and gaskets, with end plates at both ends for external power connection. End plates are provided outside the end plates for clamping, and tension bolts or hydraulic devices are used to clamp the end plates at both ends. The electrolyzer has interfaces such as electrolyte inlet, hydrogen (oxygen) and electrolyte outlet, which allow the electrolyte to enter and exit, as well as the hydrogen and oxygen to exit.

[0003] Existing interface settings are generally divided into two categories. One type has the interface located on the end face of the electrode plate. Interfaces located on the end face of the electrode plate can be used without welding pipes, but the pipes connected to the interface need to pass between two tension bolts, which limits the pipe diameter. The other type has the interface located on the side of the electrode plate. Interfaces located on the side of the electrode plate need to be welded to the electrode plate. The pipe diameter is not limited by the tension bolts, but the weld is prone to corrosion and damage. Both types of interfaces have their own advantages and disadvantages. In actual production, it is necessary to select an electrode plate with an appropriate interface position according to production needs. When changing production needs, it takes a lot of time to disassemble the electrolytic cell and replace the electrode plates, which greatly affects production efficiency. Utility Model Content

[0004] To reduce the impact of interface location changes on production efficiency, this application provides an end pressure plate for a water electrolysis device.

[0005] The technical solution for the end pressure plate of a water electrolysis device provided in this application is as follows:

[0006] An end pressure plate for a water electrolysis device includes a plate body. A sealing ring is provided at one end of the plate body in the thickness direction. A plurality of through holes are formed on the plate body outside the sealing ring, and the through holes penetrate both ends of the plate body in the thickness direction. A plurality of end holes are formed in the plate body inside the sealing ring, and the end holes penetrate both ends of the plate body in the thickness direction. A plurality of side holes are formed on the side wall of the plate body. One end of each side hole penetrates the side wall of the plate body, and the other end passes through the gap between the through holes and penetrates the sealing ring at one end of the plate body where the sealing ring is located.

[0007] By adopting the above technical solution, by simultaneously opening end holes and side holes in the plate, the pipeline can be connected to one of the end holes or side holes according to actual needs, and the other can be sealed, thereby realizing the rapid replacement of pipeline installation positions without disassembling the entire electrolytic cell to replace the end pressure plate, reducing the impact of interface position replacement on production efficiency.

[0008] Optionally, bolt holes are provided at the side wall of the plate where the side hole penetrates the plate and at the end of the end hole opposite to the sealing ring.

[0009] By adopting the above technical solution, the bolt holes can be easily installed and fixed to the pipeline using bolts.

[0010] Optionally, the plate body has annular grooves at the side wall where the side hole penetrates the plate body and at the end of the end hole away from the sealing ring. The number of annular grooves is the same as the number of end holes and side holes, and the annular grooves are opened around the end holes and side holes respectively.

[0011] By adopting the above technical solution, the annular groove is used to install the sealing ring side, thereby improving the sealing performance of the pipeline after installation and reducing the probability of gas or liquid leakage.

[0012] Optionally, a reinforcing block is integrally formed on the plate, and the reinforcing block has reinforcing holes.

[0013] By adopting the above technical solution, the reinforcing block and reinforcing hole can reinforce the entire electrolytic cell and improve the structural stability of the electrolytic cell.

[0014] Optionally, the body is provided with a sealing ring and a waist-shaped hole at one end, the waist-shaped hole being connected to a side hole.

[0015] By adopting the above technical solution, the opening of the waist-shaped hole can increase the drainage and air venting capacity of the side hole.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] By simultaneously opening end holes and side holes in the plate, the pipeline can be connected to one of the end holes or the side holes according to actual needs, and the other one can be sealed, thereby realizing the quick replacement of the pipeline installation position without disassembling the entire electrolytic cell to replace the end pressure plate, reducing the impact of interface position replacement on production efficiency.

[0018] The bolt holes facilitate the installation and fixing of pipes using bolts;

[0019] The annular groove is used to install the sealing ring side, thereby improving the sealing performance of the pipeline after installation and reducing the probability of gas or liquid leakage.

[0020] The reinforcing blocks, together with the reinforcing holes, can reinforce the entire electrolytic cell and improve its structural stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application from another perspective.

[0023] Figure 3 yes Figure 2 A magnified view of section A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Plate; 2. Sealing ring; 3. Through hole; 4. End hole; 5. Side hole; 6. Bolt hole; 7. Annular groove; 8. Reinforcing block; 9. Reinforcing hole; 10. Waist-shaped hole. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] First, it should be noted that in the description of this application, the use of directional terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for descriptive purposes and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of numerical quantifiers such as "first," "second," and "third" is for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] This application discloses an end pressure plate for a water electrolysis device, referring to... Figure 1 and Figure 2 The system includes a circular plate 1 with a sealing ring 2 at one end along its thickness. Several through holes 3 are formed on the plate 1 outside the sealing ring 2, penetrating both ends of the plate 1 along its thickness. These through holes 3 are used to insert bolts for fixing the electrolytic cell. Several end holes 4 are formed inside the sealing ring 2, penetrating both ends of the plate 1 along its thickness. Several side holes 5 are formed on the side wall of the plate 1, with one end of each side hole penetrating the side wall and the other end passing through the gap between the through holes 3 and penetrating the sealing ring 2 at one end of the plate 1. By simultaneously forming end holes 4 and side holes 5 on the plate 1, a pipe can be connected to either end hole 4 or side hole 5 according to actual needs, while the other is sealed. This allows for rapid replacement of the pipe installation position without disassembling the entire electrolytic cell to replace the end pressure plate, reducing the impact of interface position changes on production efficiency.

[0028] Reference Figure 1 , Figure 2 and Figure 3 Bolt holes 6 are provided at the side hole 5 penetrating the side wall of the plate 1 and at the end hole 4 opposite to the sealing ring 2. Annular grooves 7 are provided at the side hole 5 penetrating the side wall of the plate 1 and at the end hole 4 opposite to the sealing ring 2. The number of annular grooves 7 is the same as the number of end holes 4 and side holes 5. The annular grooves 7 are provided around the end holes 4 and side holes 5. Bolt holes 6 are provided outside the annular grooves. The provision of bolt holes 6 facilitates the installation and fixing of the pipeline with bolts. The annular grooves 7 are used to install the sealing ring, thereby improving the sealing performance of the pipeline after installation and reducing the probability of gas or liquid leakage.

[0029] Reference Figure 1 and Figure 2 A reinforcing block 8 is integrally formed on the plate 1. In this embodiment, four reinforcing blocks 8 are respectively set around the plate 1. The reinforcing blocks 8 are provided with reinforcing holes 9 for bolts to be inserted. The reinforcing blocks 8 and the reinforcing holes 9 can reinforce the entire electrolytic cell and improve the structural stability of the electrolytic cell.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The main body is equipped with a sealing ring 2 and a waist-shaped hole 10 at one end. The waist-shaped hole 10 is connected to the side hole 5. The opening of the waist-shaped hole 10 can increase the drainage and air release of the side hole 5.

[0031] The implementation principle of this application embodiment is as follows: two plates 1 with sealing rings 2 are respectively abutted against the two ends of the electrolytic cell electrode plates after they are stacked. Then, the two electrode plates are fixed to the two ends of the electrolytic cell electrode plates by bolts and nuts. After reinforcement by inserting bolts into the reinforcement holes 9 and tightening nuts, a sealing gasket rubber ring is placed in the annular groove 7 and then one of the side holes 5 or end holes 4 is sealed according to actual needs. Then, a pipe is connected to the other side hole 5 or end hole 4 to complete the assembly of the electrolytic cell.

[0032] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A pressure plate for a water electrolysis device, comprising a plate body (1), wherein a sealing ring (2) is provided at one end of the plate body (1) in the thickness direction, and a plurality of through holes (3) are provided on the plate body (1) outside the sealing ring (2), wherein the through holes (3) penetrate both ends of the plate body (1) in the thickness direction, characterized in that: The plate (1) has several end holes (4) inside the sealing ring (2). The end holes (4) penetrate both ends of the plate (1) in the thickness direction. The side wall of the plate (1) has several side holes (5). One end of the side hole (5) penetrates the side wall of the plate (1) and the other end passes through the gap between the through holes (3) and enters the sealing ring (2) inside the sealing ring (2). The sealing ring (2) is provided at one end of the plate (1).

2. A water electrolysis device end plate according to claim 1, characterized in that: The plate (1) has bolt holes (6) at the side wall through which the side hole (5) penetrates the plate (1) and at the end of the end hole (4) away from the sealing ring (2).

3. A water electrolysis device end plate according to claim 2, characterized in that: The plate (1) has annular grooves (7) at the side wall through which the side hole (5) penetrates the plate (1) and at the end of the end hole (4) away from the sealing ring (2). The number of annular grooves (7) is the same as the number of end holes (4) and side holes (5). The annular grooves (7) are opened around the end holes (4) and side holes (5) respectively.

4. A water electrolysis device end plate according to claim 3, characterized in that: A reinforcing block (8) is integrally formed on the plate (1), and a reinforcing hole (9) is provided on the reinforcing block (8).

5. A water electrolysis device end plate according to claim 4, characterized in that: The plate (1) is provided with a sealing ring (2) and a waist-shaped hole (10) is opened at one end, and the waist-shaped hole (10) is connected to the side hole (5).

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