Polar plate of hydrogen production electrolytic cell
Through multi-plate stacking and press stamping technology, the plate structure of liquid channels is formed, which solves the problems of low utilization rate of existing plate materials and time-consuming and cost-consuming production process, and achieves efficient and low-cost plate manufacturing .
Patent Information
- Application Number
- CN202420496203.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing hydrogen electrolytic cells have low utilization rate of plate materials, which consumes time and costs, resulting in low output.
Multiple plates are stacked to make the pole plates, and liquid channels are formed by stamping by pressing the press, and fixed with sealing gaskets and tension bolts, replacing the traditional pole frame structure and eliminating the turning and milling welding process.
It improves the production efficiency and output of the plate, reduces production costs, and simplifies the manufacturing process.
Smart Images
Figure CN222139311U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a polar plate of a hydrogen production electrolytic cell. Background Art
[0002] Alkaline water electrolysis is a common water electrolysis hydrogen production technology. Its basic principle is to decompose water into hydrogen and oxygen through water electrolysis. In hydrogen production equipment, the electrolyzer is its core equipment. In the process of alkaline water electrolysis hydrogen production, alkaline electrolyte is usually used as the electrolyte. The electrolyte in the hydrogen production electrolyzer provides ion conductivity.
[0003] The two circular plates are used as the anode plate and cathode plate respectively. The nipple structure on the plate is formed by stamping, and a channel is formed in the middle to allow the electrolyte to pass through. The pole frame set on the outside of the plate is circular and made of carbon steel. It has a large volume and weight. The thickness of the pole frame is more than 10mm. The single section size is large and heavy, and the material utilization rate is not high. In addition, the process of turning, milling, welding, and leveling the plate and pole frame is time-consuming and costly, resulting in low output. Therefore, it takes a lot of cost and time to make a set of pole frames and plates. Summary of the invention
[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a polar plate for a hydrogen production electrolyzer with low cost, high production efficiency and convenient production.
[0005] The purpose of the utility model is achieved in this way:
[0006] A polar plate for a hydrogen production electrolyzer, the polar plate is mainly formed by stacking multiple plates up and down, two adjacent plates are placed front and back, each plate is circular, and a corrugation is provided in the middle of the plate. The plate is punched once by a press, and the corrugation between the two adjacent plates forms a liquid channel for allowing electrolyte to pass through. After the plates are stacked, sealing gaskets are added, and then tension bolts are used to vertically pass through the edges of the plates to fix all the plates together.
[0007] Compared with the prior art, the beneficial effects of the utility model are:
[0008] The plate of this type of hydrogen production electrolyzer is punched out into a complete plate by a press, and the plates are matched with each other. At least one sealing groove is opened on the edge of the plate, and a protruding sealing ring is placed in the sealing groove, so that it can replace the pole frame and play a sealing role. In this way, there is no need to make a pole frame, and the processes of turning, milling, welding, and leveling are omitted, which improves the production efficiency of the plate, reduces the production cost, and thus increases the output. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 The utility model is a schematic diagram of the structure of a pole plate of a hydrogen production electrolyzer.
[0010] Figure 2 for Figure 1 Schematic diagram of the surface structure of the middle plate.
[0011] Figure 3 for Figure 1 Cross-section view between the plates.
[0012] Among them: plate 1, corrugation 2, liquid channel 3, tightening bolt 4, sealing groove 5. DETAILED DESCRIPTION
[0013] See also Figure 1 and Figure 3 The utility model relates to a plate of a hydrogen production electrolyzer, which is mainly composed of a plurality of plate sheets 1 stacked up and down, two adjacent plate sheets 1 are placed front and back, each plate sheet 1 is circular, a corrugation 2 is provided in the middle of the plate sheet 1, at least one circle of sealing grooves 5 is opened on the edge of the plate sheet 1, and a protruding sealing ring is placed in the sealing groove 5.
[0014] The plates 1 are punched out by a press machine at one time, and the corrugations 2 between two adjacent plates 1 form liquid channels 3 for electrolyte to pass through. After all the plates 1 are stacked, sealing gaskets are added, and then tension bolts 4 are vertically passed through the edges of the plates 1 to fix all the plates 1 together.
[0015] The electrode plates of this type of hydrogen production electrolyzer do not require the production of electrode frames, thus eliminating the processes of turning, milling, welding, and leveling, thereby improving the production efficiency of the electrode plates, reducing production costs, and thereby increasing output.
Claims
1. A plate for a hydrogen production electrolyzer, characterized in that: The electrode plate is mainly formed by stacking a plurality of plates (1) up and down, wherein two adjacent plates (1) are placed front and back, and a corrugation (2) is provided in the middle of the plate (1). The plate (1) is formed by one-time stamping by a press, and the corrugation (2) between the two adjacent plates (1) forms a liquid channel (3) for allowing electrolyte to pass through. After the plates (1) are stacked, a sealing gasket is added, and then a tension bolt (4) is vertically passed through the edge of the plate (1) to fix all the plates (1) together.
2. The electrode plate of a hydrogen production electrolyzer according to claim 1, characterized in that: Each plate (1) is circular.
3. The electrode plate of a hydrogen production electrolyzer according to claim 1, characterized in that: The edge of the plate (1) is provided with at least one circle of sealing groove (5), and a protruding sealing ring is placed in the sealing groove (5).