Electrode for producing hydrogen by electrolyzing water
By setting up ring convex and milk convex structures on the main plate of the electrolytic hydrogen-making electrode, the problems of difficult processing and reduced strength of the main plate in the existing electrolytic hydrogen-making device are solved, and the effects of reducing contact resistance, improving safety and extending service life are achieved.
Patent Information
- Application Number
- CN202420628001.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In the existing electrolytic hydrogen production device, the hemispherical concave and convex structure of the main electrode plate is processed through cold rolling, making the processing difficult and the strength reduced, and the service life is shortened.
Design a hydrogen-making electrode for electrolytic water to maintain the original structure of the main electrode plate. By setting an annular and a milk convex structure on the main electrode plate, the contact surface is increased, the contact resistance is reduced, and the strength is increased through the symmetric annular and a milk convex.
By increasing the contact surface and increasing the strength, the contact resistance is reduced, safety is improved, and service life is extended, while machining is facilitated.
Smart Images
Figure CN222893265U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen energy production, in particular to an electrode for producing hydrogen by electrolyzing water. Background Art
[0002] Hydrogen electrolysis is a technology that decomposes water into hydrogen and oxygen through an electrochemical process. The process of hydrogen electrolysis is to electrolyze water molecules into hydrogen ions and hydroxide ions under the action of direct current. The hydrogen ions further combine to form hydrogen, while the hydroxide ions lose electrons at the anode to form oxygen.
[0003] At present, in the process of electrolytic hydrogen production, the commonly used plates are generally made of materials with good conductivity and corrosion resistance. Common plate materials are: platinum plate and palladium plate. In order to ensure the ionization effect and gas production of the plate, a hemispherical concave-convex structure is arranged in an array on the main board on the power supply side of the plate, thereby reducing the contact resistance on the basis of multi-point electrical contact.
[0004] However, the conventional electrolytic hydrogen production device still has the following shortcomings:
[0005] 1. The hemispherical concave-convex structure on the main plate is processed by cold rolling, which is difficult to process;
[0006] 2. The strength of the main electrode plate will be reduced after processing, thus shortening the service life of the main electrode plate. Utility Model Content
[0007] In order to solve the technical problems existing in the background technology, the utility model provides an electrode for producing hydrogen by electrolyzing water, which maintains the original structure of the main electrode plate, thereby ensuring its strength and service life.
[0008] The technical solution adopted by the utility model is:
[0009] A water electrolysis hydrogen production electrode, comprising:
[0010] The sealing clamp is arranged in an annular pole frame between the film frames, a main pole plate is arranged in the ring of the pole frame, an electrical seat electrically connected to the main pole plate is arranged on the outer ring wall of the pole frame, an annular protrusion and a nipple electrically connected to the main pole plate are protruding on the main pole plate, the annular protrusion and the nipple are electrically connected to the pole plate, and the upper and lower edges of the pole plate are respectively provided with a second through groove and a first through groove;
[0011] The lower part of the pole frame is provided with a liquid inlet through hole along its axial direction, and the lower part of the radial end surface of the pole frame is provided with a concave liquid inlet through groove, which is arranged directly below the first through groove and is connected with the inner ring of the pole frame and the liquid inlet through groove;
[0012] The upper part of the pole frame is provided with a first drainage hole and a second drainage hole along its axial direction, and the upper part of the radial end surface of the pole frame is provided with an inwardly concave drainage groove, which is arranged directly above the second groove and is connected with the inner ring of the pole frame and the first drainage hole.
[0013] Furthermore, a concave sealing groove is provided at the edge of the pole frame for accommodating an annular sealing gasket.
[0014] Furthermore, the annular protrusion is arranged as a concentric ring with the center of the main pole plate as a circle.
[0015] Furthermore, the upper and lower parts of the annular protrusion are provided with separation gaps to facilitate the circulation of electrolyte.
[0016] Furthermore, the nipple is arranged in the ring of the annular bulge, and a plurality of nipples are distributed in a circular array along the center of the main pole plate.
[0017] Furthermore, one side of the pole plate is electrically connected to the annular protrusion and the nipple protrusion, and the other side is flush with the radial end surface of the pole frame.
[0018] Furthermore, two groups of the liquid inlet through holes are symmetrically arranged along the central axis of the pole frame.
[0019] Furthermore, two groups of the liquid inlet grooves are provided and are respectively located at two ends of the liquid inlet through hole.
[0020] Furthermore, the first liquid drainage through hole and the second liquid drainage through hole are symmetrically arranged along the central axis of the pole frame.
[0021] Furthermore, the drainage grooves are provided in two groups and are respectively located at two ends of the first drainage through hole;
[0022] The liquid inlet through hole, the first liquid discharge through hole, and the liquid passing holes on the second liquid discharge through hole membrane frame are connected;
[0023] The liquid inlet groove and the liquid discharge groove are arranged in a semicircular tube shape and are matched with the liquid passage grooves at the liquid passage holes on the membrane frame respectively.
[0024] The advantages of the water electrolysis hydrogen production electrode of the utility model are:
[0025] 1. Through the ring convexity and nipple convexity on the main board, the contact surface is increased, the contact resistance is reduced, and the safety is improved;
[0026] 2. The symmetrical ring convexity and nipple convexity increase the strength, so it will not be deformed due to the extrusion of the plates on both sides, thus extending the service life;
[0027] 3. The semi-circular shape of the liquid inlet and outlet grooves facilitates the placement of the pole frame and makes it easier to perform mechanical processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the specific implementation of the utility model, the drawings required in the specific implementation are briefly introduced below. The drawings in the following description are implementations of the utility model.
[0029] Figure 1 This is a general three-dimensional explosion diagram of an electrode for producing hydrogen by electrolysis of water provided by the utility model example;
[0030] Figure 2 This utility model example Figure 1 An enlarged three-dimensional schematic diagram of part A in the middle;
[0031] Figure 3 This utility model example Figure 1 An enlarged stereoscopic schematic diagram of part B;
[0032] Figure 4 This utility model example Figure 1 An enlarged stereoscopic schematic diagram of the middle C part;
[0033] Figure 5 This utility model example Figure 1 An enlarged three-dimensional schematic diagram of part D in the middle.
[0034] In the figure:
[0035] 10. Pole frame, 11. Main pole plate, 12. Sealing tank, 13. Electrical seat,
[0036] 21. Ring convexity, 22. Nipple convexity,
[0037] 30. Liquid inlet hole, 31. Liquid inlet slot,
[0038] 41. The first liquid discharge through hole, 42. The second liquid discharge through hole, 43. The liquid discharge through slot,
[0039] 50. Polar plate, 51. First through groove, 52. Second through groove. DETAILED DESCRIPTION
[0040] In order to more clearly and explicitly illustrate the specific implementation purpose and implementation method of the utility model, the technical solution of the utility model will be fully described below. The described embodiment is a part of the embodiment of the utility model, not all the embodiments. Without making creative work, all other embodiments based on the embodiment described in the utility model belong to the protection scope of the utility model.
[0041] The utility model discloses an electrode for producing hydrogen by electrolyzing water, such as Figure 1 As shown, including:
[0042] The sealing clamp is provided in an annular pole frame 10 between the film frames, and a main pole plate 11 is provided in the ring of the pole frame 10. An inwardly concave sealing groove 12 is provided at the edge of the pole frame 10 for accommodating an annular sealing gasket. An electrical seat 13 electrically connected to the main pole plate 11 is provided on the outer ring wall of the pole frame 10; an annular protrusion 21 and a nipple 22 electrically connected to the main pole plate 11 are provided protrudingly on the main pole plate 11, and the annular protrusion 21 is provided in a concentric ring shape with the center of the main pole plate 11 as a circle. Separation notches are provided at the upper and lower parts of the annular protrusion 21 to facilitate the circulation of electrolyte, and the nipple 22 is provided in the ring of the annular protrusion 21, and a plurality of nipples 22 are provided along the central circular array of the main pole plate 11; the annular protrusion 21 and the nipple 22 are electrically connected to the pole plate 50, such as Figure 4 , Figure 5 As shown, the upper and lower edges of the pole plate 50 are respectively provided with a second through groove 52 and a first through groove 51 . One side of the pole plate 50 is electrically connected to the annular protrusion 21 and the nipple 22 , and the other side is flush with the radial end surface of the pole frame 10 .
[0043] The lower part of the pole frame 10 is provided with a liquid inlet through hole 30 along its axial direction. The liquid inlet through hole 30 is symmetrically provided in two groups along the central axis of the pole frame 10. Figure 2 As shown, a concave liquid inlet groove 31 is provided at the lower part of the radial end surface of the pole frame 10. Two groups of liquid inlet grooves 31 are provided and are respectively located at the two ends of the liquid inlet through hole 30. The liquid inlet groove 31 is provided directly below the first groove 51 and is connected to the inner ring of the pole frame 10 and the liquid inlet groove 31.
[0044] The upper part of the pole frame 10 is provided with a first liquid discharge through hole 41 and a second liquid discharge through hole 42 along its axial direction. Figure 3 As shown, the first drainage hole 41 and the second drainage hole 42 are symmetrically arranged along the central axis of the pole frame 10, and an inwardly concave drainage groove 43 is arranged on the upper part of the radial end surface of the pole frame 10. There are two groups of drainage grooves 43, which are respectively located at the two ends of the first drainage hole 41. The drainage grooves 43 are arranged directly above the second grooves 52 and are connected to the inner ring of the pole frame 10 and the first drainage hole 41.
[0045] The liquid inlet through hole 30, the first liquid discharge through hole 41 and the second liquid discharge through hole 42 are connected to the liquid passage hole on the membrane frame; the liquid inlet through groove 31 and the liquid discharge through groove 43 are set to be semicircular tubes and respectively match the liquid passage grooves at the liquid passage hole on the membrane frame.
[0046] Based on the above, the embodiment of the utility model of a water electrolysis hydrogen production electrode is inspired. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A water electrolysis hydrogen production electrode, characterized in that: include: A ring-shaped pole frame (10) is sealed and clamped between the membrane frames, a main pole plate (11) is arranged inside the ring of the pole frame (10), an electrical seat (13) electrically connected to the main pole plate (11) is arranged on the outer ring wall of the pole frame (10), an annular protrusion (21) and a nipple (22) electrically connected to the main pole plate (11) are protruded on the main pole plate (11), a pole plate (50) is electrically connected to the annular protrusion (21) and the nipple (22), and a second through groove (52) and a first through groove (51) are respectively arranged at the upper and lower edges of the pole plate (50); A liquid inlet through hole (30) is provided in the lower part of the pole frame (10) along its axial direction, and a concave liquid inlet through groove (31) is provided in the lower part of the radial end surface of the pole frame (10). The liquid inlet through groove (31) is arranged directly below the first through groove (51) and is connected to the inner ring of the pole frame (10) and the liquid inlet through groove (31); The upper part of the pole frame (10) is provided with a first liquid drainage through hole (41) and a second liquid drainage through hole (42) along its axial direction, and the upper part of the radial end surface of the pole frame (10) is provided with an inwardly concave liquid drainage through groove (43), the liquid drainage through groove (43) is arranged directly above the second through groove (52), and is connected to the inner ring of the pole frame (10) and the first liquid drainage through hole (41).
2. The water electrolysis hydrogen production electrode according to claim 1, characterized in that: An inwardly concave sealing groove (12) is provided at the edge of the pole frame (10) for accommodating an annular sealing gasket.
3. The water electrolysis hydrogen production electrode according to claim 1, characterized in that: The annular protrusion (21) is arranged in a concentric ring shape with the center of the main pole plate (11) as a circle.
4. The water electrolysis hydrogen production electrode according to claim 3, characterized in that: The upper and lower parts of the annular protrusion (21) are provided with separation gaps to facilitate the circulation of electrolyte.
5. The water electrolysis hydrogen production electrode according to claim 4, characterized in that: The nipple (22) is arranged in the ring of the annular protrusion (21), and a plurality of nipples (22) are arranged in a distributed circular array along the center of the main pole plate (11).
6. The water electrolysis hydrogen production electrode according to claim 1, characterized in that: One side of the pole plate (50) is electrically connected to the annular protrusion (21) and the nipple protrusion (22), and the other side is flush with the radial end surface of the pole frame (10).
7. The water electrolysis hydrogen production electrode according to claim 1, characterized in that: The liquid inlet through holes (30) are symmetrically arranged in two groups along the central axis of the pole frame (10).
8. The water electrolysis hydrogen production electrode according to claim 7, characterized in that: The liquid inlet grooves (31) are provided in two groups and are respectively located at the two ends of the liquid inlet through hole (30).
9. The water electrolysis hydrogen production electrode according to claim 8, characterized in that: The first liquid drainage through hole (41) and the second liquid drainage through hole (42) are symmetrically arranged along the central axis of the pole frame (10).
10. The water electrolysis hydrogen production electrode according to claim 9, characterized in that: The liquid drainage grooves (43) are provided in two groups and are respectively located at two ends of the first liquid drainage hole (41); The liquid inlet through hole (30), the first liquid discharge through hole (41), and the second liquid discharge through hole (42) are connected to the liquid passage holes on the membrane frame; The liquid inlet groove (31) and the liquid discharge groove (43) are arranged in a semicircular tube shape and are matched with the liquid passage grooves at the liquid passage holes on the membrane frame respectively.