Lossless efficient clamp for activating hydrogen production electrode
By designing a non-destructive and efficient fixture, the problems of stability and ease of operation of hydrogen production electrodes during the activation process were solved, thereby improving the stability and production efficiency of the electrode activation process.
Patent Information
- Application Number
- CN202520132304.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing hydrogen production electrodes suffer from problems during activation, such as large size leading to easy deformation, fastening facilities affecting operational efficiency, hydrogen impact causing fixture damage, and obstruction of activation solution flow.
Design a non-destructive and efficient clamp that includes a main frame, a detachable upper stop bar, and a fixed lower stop bar. It is made of 316L stainless steel and features multi-point support and through-hole structure to ensure electrode stability and liquid-gas flow.
This improves the stability and ease of operation of the electrode activation process, avoids product surface defects, and enhances production efficiency and product quality.
Smart Images
Figure CN223763063U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydrogen production technology, specifically to a non-destructive and efficient clamp for activating hydrogen production electrodes. Background Technology
[0002] Hydrogen production through water electrolysis is a clean method that effectively utilizes renewable energy sources such as nuclear power, wind power, photovoltaic power, and hydropower, meeting the large-scale energy storage needs of future power systems with a high proportion of renewable energy. Water electrolysis not only provides new possibilities for large-scale, long-term energy storage and long-distance transportation of electricity, but also helps address the issues of "three abandonments" (wastewater, waste gas, and wastewater).
[0003] This provides a new approach to addressing the issues of curtailment of solar, hydro, and wind power, and opens up new avenues for peak shaving and valley filling in the power grid.
[0004] Among various water electrolysis hydrogen production technologies, alkaline water electrolysis has become the mainstream route due to its mature technology and low cost. In an alkaline electrolyzer, the electrode is its core component, and its performance and cost directly affect the overall application range of the electrolyzer. Currently, electrode preparation commonly employs a process of plasma-spraying a nickel-aluminum coating followed by alkaline activation. This process is widely used in the industry due to its mature technology and safety.
[0005] However, existing hydrogen production electrodes have several technical problems during the activation process: First, the electrodes are relatively large, generally around 2000 mm in size, and the electrode substrate is made of nickel wire mesh, which is not very strong. During activation, it is prone to bending and falling off, resulting in defects such as indentations and creases on the product surface. Second, to ensure safety during the electrode activation process and prevent electrode detachment, existing activation fixtures are usually equipped with numerous fastening devices, making the loading and unloading process extremely inconvenient and seriously affecting production efficiency. Third, a large amount of hydrogen gas is generated instantaneously during electrode activation, and the gas impact can cause the fixture to deform or be damaged. Finally, too many fasteners can affect the flow of the activation solution and the emission of gas, resulting in a large number of black marks on the electrode surface, affecting the appearance quality of the product. Utility Model Content
[0006] The purpose of this invention is to provide a non-destructive and efficient fixture for activating hydrogen production electrodes, which can ensure the stability of the electrode during the activation process, facilitate operation, and ensure good flow of activation liquid and gas, thereby improving the quality and efficiency of the electrode activation process.
[0007] To achieve the above objectives, this utility model employs the following technical solution:
[0008] A non-destructive and efficient clamp for activating hydrogen production electrodes includes a main frame, multiple lower stop bars, multiple upper stop bars, and multiple fastening knobs;
[0009] The main frame is a square frame, the lower stop bar is fixedly installed on the bottom surface of the main frame, and the upper stop bar is detachably installed on the top surface of the main frame;
[0010] The fastening knobs are located at the four corners of the main frame, and the ends of the fastening knobs are provided with contact pieces for contacting the electrodes. The four corners of the main frame are provided with fixing plates that are positioned opposite the ends of the fastening knobs.
[0011] Furthermore, multiple through holes are provided along the edges of the main frame.
[0012] Furthermore: one end of the upper stop lever is rotatably connected to one side of the main frame via a pivot, and the other end of the upper stop lever is provided with an elastic hook. On the other side of the main frame, a hook ring is provided at the location corresponding to the elastic hook, and the elastic hook is detachably hooked into the hook ring.
[0013] Furthermore, the upper stop bar includes multiple horizontally arranged circular crossbars and multiple vertically arranged circular longitudinal bars, with 2-4 crossbars and 4 longitudinal bars in total.
[0014] Furthermore, the lower stop bar includes multiple horizontally arranged circular crossbars and multiple vertically arranged circular longitudinal bars, with each crossbar and longitudinal bar having a quantity of 3-7.
[0015] Furthermore, the upper and lower stop levers have a diameter of 5-15mm and are made of 316L stainless steel.
[0016] Furthermore, the number of the fastening knobs is 4-8.
[0017] Furthermore, the diameter of the contact piece is 30-50 mm.
[0018] Furthermore, the diameter of the through hole is 10-15 mm.
[0019] Furthermore, the height of the main frame is not less than 30mm.
[0020] Compared with the prior art, the present invention has the following advantages:
[0021] I. This utility model provides multi-point support and fixation for the electrodes by setting a detachable upper stop bar and a fixed lower stop bar on the main frame, and setting fastening knobs with contact pieces of specific sizes around the main frame. This effectively prevents the electrodes from falling off or bending during the activation process, and avoids quality defects such as indentations and creases on the product surface.
[0022] Second, the main frame of this utility model adopts a hollow square frame with multiple through holes on the top and bottom edges. On the one hand, it reduces the weight of the clamp and facilitates operation, and on the other hand, it ensures the rapid flow of activation liquid and gas, preventing liquid stagnation from causing water stains or alkali stains on the product surface and other quality abnormalities.
[0023] Third, by setting the height of the main frame to be no less than 30mm, this utility model ensures that there is an appropriate distance between the electrode and the stop bar, thus avoiding quality abnormalities such as black marks on the product surface caused by direct contact between the electrode and the stop bar during the activation process.
[0024] Fourth, this utility model adopts a detachable upper stop bar structure design, which makes the electrode loading and unloading operations more convenient and significantly improves production efficiency. At the same time, by reasonably setting the number of fastening knobs and the size of the contact pieces, the electrode fixing effect is guaranteed without affecting the flow of the activation liquid and the emission of gas. Attached Figure Description
[0025] Figure 1 This is a front view schematic diagram of a non-destructive and efficient fixture for activating a hydrogen production electrode in this device;
[0026] Figure 2 for Figure 1 Enlarged view of region A in the middle;
[0027] Figure 3 for Figure 1 Enlarged view of region B in the middle;
[0028] Figure 4 This is a bottom view schematic diagram of a non-destructive and efficient clamp for activating a hydrogen production electrode in this device;
[0029] Figure 5 for Figure 4 Enlarged view of region C in the middle;
[0030] In the picture:
[0031] 1. Main frame; 1.1. Through hole; 2. Upper stop bar; 2.1. Rotating shaft; 2.2. Elastic hook; 2.3. Hook ring; 3. Lower stop bar; 4. Fixing plate; 5. Fastening knob; 5.1. Contact piece. Detailed Implementation
[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0034] The present invention provides a non-destructive and efficient clamp for activating hydrogen production electrodes, comprising a main frame 1, multiple lower stop bars 3, multiple upper stop bars 2, and multiple fastening knobs 5. The main frame 1 adopts a square frame structure. The lower stop bars 3 are fixedly mounted on the bottom surface of the main frame 1, the upper stop bars 2 are detachably mounted on the top surface of the main frame 1, and the fastening knobs 5 are located at the four corners of the main frame 1. Each fastening knob 5 has a contact piece 5.1 at its end for contacting the electrode. Fixing plates 4 are located at the four corners of the main frame 1, corresponding to the ends of the fastening knobs 5.
[0035] To facilitate the rapid flow of activation liquid and gas, multiple through holes 1.1 are provided along the edges of the main frame 1. Specifically, these through holes 1.1 have a diameter of 10-15mm. These through holes 1.1 allow the liquid generated during activation to flow out quickly, preventing liquid stagnation that could lead to water stains or alkali stains on the product surface and other quality defects. Simultaneously, the height of the main frame 1 is designed to be no less than 30mm. This design ensures an appropriate distance between the electrode and the stop bar, preventing black marks from forming on the product surface due to direct contact during activation.
[0036] One end of the upper stop rod 2 is rotatably connected to one side of the main frame 1 via a pivot 2.1, and the other end is equipped with an elastic hook 2.2. A hook ring 2.3 is located on the other side of the main frame 1 at a position corresponding to the elastic hook 2.2, and the elastic hook 2.2 is detachably hooked into the hook ring 2.3. This design makes the assembly and disassembly of the upper stop rod 2 more convenient, which is beneficial to improving the efficiency of electrode loading and unloading. The upper stop rod 2 includes multiple horizontally arranged circular crossbars and multiple vertically arranged circular rods, with 2-4 crossbars and 4 vertical rods in each position. Similarly, the lower stop rod 3 includes two horizontal bars and two vertical bars, with 3-7 of each. All crossbars, horizontal bars, and vertical bars are 5-15mm in diameter and made of 316L stainless steel to prevent corrosion in alkaline environments.
[0037] The number of fastening knobs 5 is 4-8, and the diameter of the contact piece 5.1 at its end is 30-50mm. This design ensures effective fixation of the electrode without affecting the flow of the activation solution and the discharge of gas due to excessive contact area. If the diameter of the contact piece 5.1 is less than 30mm, the electrode may deform due to excessive local force; if it is greater than 50mm, it will affect the flow of activation solution and gas.
[0038] Specific Embodiment: A non-destructive and efficient clamp for activating a hydrogen production electrode has a main frame 1 with dimensions of 2100mm (length) × 2100mm (width) × 40mm (height). A lower stop bar 3 is fixedly connected to the bottom of the main frame 1, and an upper stop bar 2 is detachably connected to the upper part of the main frame 1. Six fastening knobs 5 are arranged around the main frame 1, four at the top and two at the bottom, with contact pieces 5.1 at the ends of the knobs having a diameter of 40mm. Four drainage holes with a diameter of 12mm are opened around the main frame 1 for rapid solution outflow. Both the upper stop bar 2 and the lower stop bar 3 are made of 316L stainless steel round rods with a diameter of 10mm. The upper stop bar 2 has three horizontal and three vertical bars, while the lower stop bar 3 has five horizontal and five vertical bars.
[0039] In use, lay the clamp flat, loosen the elastic hook 2.2 to open the upper stop 2, place the electrode on the lower stop 3, and secure the electrode around its perimeter with the fastening knob 5. Then, rotate the upper stop 2 back to its original position and secure it with the elastic hook 2.2 to perform the activation treatment. Electrode products activated using this clamp show no quality abnormalities such as detachment, creases, or black marks.
[0040] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A non-destructive and efficient clamp for activation of a hydrogen production electrode, characterized by, The utility model relates to a kind of electrode holder, including main body frame, multiple lower rods, multiple upper rods and multiple fastening knobs; The main body frame is a square frame, the lower rods are fixedly arranged on the bottom surface of the main body frame, and the upper rods are detachably arranged on the top surface of the main body frame; The fastening knobs are arranged at the four corners of the main body frame, and the end of the fastening knob is provided with a contact sheet for contacting the electrode.
2. The non-destructive and high efficient clamp for activating a hydrogen production electrode according to claim 1, characterized in that, The edges of the main body frame are provided with a plurality of through holes.
3. The non-destructive and high efficient clamp for activating a hydrogen production electrode according to claim 1, characterized in that, One end of the upper rod is rotatably connected to one side of the main body frame through a rotating shaft, and the other end of the upper rod is provided with an elastic hook.
4. The non-destructive and high efficient clamp for activating a hydrogen production electrode according to claim 1, characterized in that, The upper rod includes a plurality of horizontally arranged circular horizontal rods and a plurality of vertically arranged circular vertical rods.
5. The non-destructive and high efficient clamp for activating a hydrogen production electrode according to claim 1, characterized in that, The lower rod includes a plurality of horizontally arranged circular horizontal rods and a plurality of vertically arranged circular vertical rods.
6. The non-destructive and high efficient clamp for activating a hydrogen production electrode according to claim 1, characterized in that, The diameter of the upper rod and the lower rod is 5-15 mm, and the material is 316L stainless steel.
7. The non-destructive and high efficient clamp for activating a hydrogen production electrode according to claim 1, characterized in that, The number of the fastening knobs is 4-8.
8. The non-destructive and efficient clamp for activating a hydrogen production electrode according to claim 1, characterized by, The diameter of the contact sheet is 30-50 mm.
9. The non-destructive and high efficient clamp for activating a hydrogen production electrode according to claim 2, characterized in that, The diameter of the through hole is 10-15 mm.
10. The non-destructive and efficient clamp for activating a hydrogen production electrode according to claim 1, wherein The height of the main body frame is not less than 30 mm.