Main polar plate and alkaline electrolytic bath
By designing aligned first and second mastoid structures on the main plate, the extrusion torque during assembly is offset, the service life of the main plate and the electrolyte is improved, and the uniform flow and contact of the electrolyte is promoted. The reduction in resistance solves the problem of shortening life caused by traditional mastoid structures.
Patent Information
- Application Number
- CN202420124583.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The traditional main plate mastoid structure is subjected to squeeze pressure during the assembly process of the electrolytic cell, forming torque, resulting in a shortening of the service life of the main plate and the electrolytic cell.
Design the first and second mastoids to protrude along the thickness direction of the main plate, with the opposite direction and aligned to offset the squeeze pressure from each other during assembly, reduce the risk of torque, while molding and appropriate size Design reduces processing difficulty and cost.
It effectively reduces the deformation risk of the main electrode plate, improves service life, promotes the uniform flow of the electrolyte and reduces contact resistance, and improves the working stability of the electrolyte cell.
Smart Images
Figure CN222182471U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen production by electrolyzing water, in particular to a main pole plate and an alkaline electrolytic cell. Background Art
[0002] Alkaline electrolyzers are used to produce hydrogen. Electrolyzers are generally composed of dozens to hundreds of electrolytic chambers, which are pressed together by screws and end plates, wherein each electrolytic chamber includes an anode electrode, a cathode electrode, a diaphragm, a sealing gasket, and positive and negative plates. The plates include a main plate and a pole frame. The main plate has nipples arranged at intervals on both sides along the thickness direction of the main plate. The nipples can reduce contact resistance, make the electrolyte evenly distributed, and reduce the energy consumption of the electrolyzer. However, the traditional nipple structure is a spherical protrusion and a spherical concave located on both sides of the thickness direction of the main plate, which are staggered along the length direction of the main plate. During the assembly of the electrolyzer, each nipple is subjected to an extrusion force, and the extrusion force is also staggered along the length direction of the main plate, thereby forming a torque acting on the main plate, reducing the service life of the main plate and the electrolyzer. Utility Model Content
[0003] The present application provides a main pole plate and an alkaline electrolytic cell, in which the extrusion force exerted on the first nipple of the main pole plate and the extrusion force exerted on the second nipple are not staggered and can offset each other, thereby reducing the risk of torque formed by the extrusion force and the risk of deformation of the main pole plate, thereby increasing the service life of the main pole plate in the electrolytic cell.
[0004] In a first aspect, the present application provides a main pole plate, the main pole plate comprising:
[0005] ontology;
[0006] A first mastoid and a second mastoid, along a thickness direction perpendicular to the main pole plate, a plurality of the first mastoids are arranged at intervals, and a plurality of the second mastoids are arranged at intervals;
[0007] Wherein, the first mastoid and the second mastoid protrude along the thickness direction of the main pole plate, and the protrusion directions of the two are opposite, and along the thickness direction of the main pole plate, the first mastoid and the second mastoid are aligned;
[0008] Along the thickness direction of the main pole plate, the first mastoid includes a first end and a second end that are oppositely arranged, the second end is connected to the body, along the thickness direction of the main pole plate, the second mastoid includes a third end and a fourth end that are oppositely arranged, the fourth end is connected to the body, and the first end and the third end are planes perpendicular to the thickness direction of the main pole plate;
[0009] Along the length direction of the main pole plate, the dimension L1 of the first end satisfies 5mm≤L1≤10mm, and the dimension L2 of the third end satisfies 5mm≤L2≤10mm.
[0010] During the process of assembling the main pole plate to the alkaline electrolytic cell, the assembly equipment squeezes the main pole plate along both sides perpendicular to the thickness direction of the main pole plate so that the main pole plate can be installed in the electrolytic cell, and the first mastoid and the second mastoid are both subjected to a squeezing force toward one side of the body, wherein the first mastoid is subjected to a first squeezing force toward one side of the body, and the second mastoid is subjected to a second squeezing force toward one side of the body. The first mastoid and the second mastoid are aligned along the thickness direction of the main pole plate, and the first squeezing force received by the first mastoid and the second squeezing force received by the second mastoid are not staggered, and can offset each other. Compared with the prior art in which the first mastoid and the second mastoid are installed in an offset manner (not aligned along the thickness direction of the main pole plate) on both sides of the body perpendicular to the thickness direction of the main pole plate, the present application can reduce the risk of torque formed by the squeezing force, reduce the risk of deformation of the main pole plate, and thus increase the service life of the main pole plate used in the electrolytic cell.
[0011] In the process of assembling the main pole plate to the alkaline electrolytic cell, the first end is subjected to a first extrusion force toward one side of the body, and the third end is subjected to a second extrusion force toward one side of the body. The first end and the third end are planes perpendicular to the thickness direction of the main pole plate, so that when the equipment for assembling the main pole plate is extruded with the first end or the third end, the first extrusion force can be evenly distributed on the first end which is a plane, and the second extrusion force can be evenly distributed on the third end which is a plane, so that the first extrusion force on the first mastoid is along the thickness direction of the main pole plate, and the second extrusion force on the second mastoid is along the thickness direction of the main pole plate, that is, the first extrusion force and the second extrusion force act in opposite directions and can offset each other, thereby further improving the possibility that the first extrusion force and the second extrusion force can offset each other along the thickness direction of the main pole plate, so as to reduce the risk of torque formation between the first mastoid and the second mastoid, thereby improving the life of the main pole plate. At the same time, compared with the first end or the third end being set to other shapes such as a sharp angle or an inclined plane, the plane can increase the contact area with the assembly equipment, which is conducive to reducing the stress concentration and wear of the first end and the third end, thereby improving the life of the first mastoid and the second mastoid, and further improving the life of the main pole plate. In this embodiment, when 5mm≤L1≤10mm and 5mm≤L2≤10mm, the areas of the first end and the third end are moderate, which can reduce the pressure during the assembly process and will not affect the flow of the electrolyte.
[0012] In a possible design, along a direction perpendicular to the thickness of the main pole plate, two ends of the first end are aligned with two ends of the third end respectively.
[0013] In a possible design, a dimension M1 of the second end along the length direction of the main pole plate satisfies 10 mm ≤ M1 ≤ 20 mm, and a dimension M2 of the fourth end along the length direction of the main pole plate satisfies 10 mm ≤ M2 ≤ 20 mm.
[0014] In a possible design, along the thickness direction of the main pole plate, the protrusion dimension D1 of the first mastoid satisfies 3mm≤D1≤8mm, and the protrusion dimension D2 of the second mastoid satisfies 3mm≤D2≤8mm.
[0015] In a possible design, the first mastoid and the second mastoid aligned along the thickness direction of the main pole plate have the same shape, and the first mastoid and the second mastoid aligned along the thickness direction of the main pole plate have the same size.
[0016] In one possible design, the shape of the first mastoid is one or more of a trapezoid, a rectangle, a pentagon, and a hexagon, and the shape of the second mastoid is one or more of a trapezoid, a rectangle, a pentagon, and a hexagon.
[0017] In a possible design, the first mastoid and the second mastoid are solid structures.
[0018] In a possible design, the thickness S of the body satisfies 2mm≤S≤3mm.
[0019] In a possible design, the first mastoid and the second mastoid are formed on the body by 3D printing.
[0020] In a possible design, the body, the first mastoid and the second mastoid are made of stainless steel or titanium.
[0021] The second aspect of the present application provides an alkaline electrolytic cell, which includes the main pole plate described above. When the main pole plate is used in the electrolytic cell, the main pole plate supports the electrolytic cell, and has the functions of promoting the flow of electrolyte, conducting electricity and reducing contact resistance. Along the thickness direction of the main pole plate, the alignment of the first nipple and the second nipple can offset the extrusion force applied to the main pole plate during installation in the electrolytic cell, reduce the risk of deformation or breakage of the main pole plate, and thus help to increase the life of the main pole plate, and thus improve the life of the electrolytic cell. At the same time, the first nipple and the second nipple can facilitate the flow of electrolyte in the electrolytic cell, so as to reduce the electrolyte concentration difference at various locations in the flow channel, thereby making the electrolyte distribution more uniform, and can reduce the contact resistance, which is beneficial to improving the working stability of the electrolytic cell.
[0022] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic structural diagram of a main electrode plate provided in this application in a specific embodiment;
[0024] Figure 2 for Figure 1 A partial enlarged view of part A;
[0025] Figure 3 for Figure 1 A partial enlarged view of part B;
[0026] Figure 4 for Figure 1 A partial enlarged view of part C.
[0027] Description of reference numerals:
[0028] 1- Main plate;
[0029] 2-Ontology;
[0030] 3-first mastoid;
[0031] 31 - first end;
[0032] 32 - second end;
[0033] 4-second mastoid;
[0034] 41 - third end;
[0035] 42-the fourth end;
[0036] 5- Accommodation cavity.
[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION
[0038] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0039] In a specific embodiment, the present application is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.
[0040] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0041] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0042] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0043] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.
[0044] The traditional main pole plates are distributed with convex and concave shaped mastoids on both sides, and the mastoids are staggered along the length direction of the main pole plates. During the assembly of the electrolytic cell, each mastoid is subjected to extrusion pressure, and the extrusion pressure is also staggered along the length direction of the main pole plates, thereby forming a torque acting on the main pole plates, reducing the service life of the main pole plates and the electrolytic cell. The traditional convex and concave shaped mastoid structures are generally prepared by stamping process. In order to ensure the supporting strength of the main pole plates, the thickness of the main pole plates is usually increased. Generally, stainless steel is used with a thickness of about 2mm, which puts higher requirements on the tonnage of the stamping machine. On the other hand, in order to reduce large bubbles in the electrolyte and reduce the contact resistance between the main pole plates and the electrodes, the number of mastoids is required to be as large as possible, which further increases the stamping cost.
[0045] In order to solve the above technical problems, the present application embodiment provides a main electrode plate 1, such as Figure 1 As shown, the main pole plate 1 includes a body 2, a first mastoid 3 and a second mastoid 4. A plurality of first mastoids 3 are arranged at intervals along a thickness direction perpendicular to the main pole plate 1, and a plurality of second mastoids 4 are arranged at intervals. The first mastoid 3 and the second mastoid 4 are raised along the thickness direction of the main pole plate 1, and the raised directions of the two are opposite. Along the thickness direction of the main pole plate 1, the first mastoid 3 and the second mastoid 4 are aligned.
[0046] During the process of assembling the main pole plate 1 to the alkaline electrolytic cell, the assembly equipment squeezes the main pole plate 1 along both sides perpendicular to the thickness direction of the main pole plate 1 so that the main pole plate 1 can be installed in the alkaline electrolytic cell, and the first mastoid 3 and the second mastoid 4 are both subjected to a squeezing force toward one side of the body 2, wherein the first mastoid 3 is subjected to a first squeezing force toward one side of the body 2, and the second mastoid 4 is subjected to a second squeezing force toward one side of the body 2. In this embodiment, the first mastoid 3 and the second mastoid 4 are aligned along the thickness direction of the main pole plate 1, and the first squeezing force received by the first mastoid 3 and the second squeezing force received by the second mastoid 4 are not staggered, and can offset each other. Compared with the prior art in which the spherical concave mastoid and the spherical convex mastoid are staggered (not aligned along the thickness direction of the main pole plate 1) on both sides of the body 2 perpendicular to the thickness direction of the main pole plate 1, this embodiment can reduce the risk of torque formed by the squeezing force, reduce the risk of deformation of the main pole plate 1, and thus increase the service life of the main pole plate 1 in the alkaline electrolytic cell.
[0047] In addition, along the thickness direction perpendicular to the main pole plate 1, multiple first nipples 3 are arranged at intervals, and multiple second nipples 4 are arranged at intervals, so that a receiving cavity 5 can be formed between each first nipple 3 and each second nipple 4, and the electrolyte can flow in the receiving cavity 5. The receiving cavity 5 can form a circulation channel for the electrolyte, so that the electrolyte cannot flow directly upward when entering the flow channel between the main pole plates 1 and the main pole plates 1, and needs to pass through the receiving cavity 5 between multiple first nipples 3 or multiple second nipples 4, which is beneficial to enhance the disturbance degree of the electrolyte flow, so as to reduce the electrolyte concentration difference at various points in the flow channel, thereby making the electrolyte distribution more uniform, thereby reducing the energy consumption of the electrolytic cell, and is beneficial to improving the stability of the long-term operation of the electrolytic cell.
[0048] In a specific embodiment, Figure 1 As shown, the first mastoid 3 and the second mastoid 4 are formed on the body 2 by 3D printing. Therefore, compared with the process of stamping the spherical convex and spherical concave mastoid structures, the 3D printing method can reduce the processing difficulty of the first mastoid 3 and the second mastoid 4, thereby reducing the production cost and better meeting the actual production needs.
[0049] like Figure 1 As shown, the shape of the first mastoid 3 is one or more of a trapezoid, a rectangle, a pentagon, and a hexagon, and the shape of the second mastoid 4 is one or more of a trapezoid, a rectangle, a pentagon, and a hexagon. The shapes of the first mastoid 3 and the second mastoid 4 are not limited in the embodiment of the present application.
[0050] In one possible embodiment, the first mastoid 3 aligned along the thickness direction of the main pole plate 1 has the same shape as the second mastoid 4, and the first mastoid 3 aligned along the thickness direction of the main pole plate 1 has the same size as the second mastoid 4, so that the first extrusion force exerted on the first mastoid 3 aligned along the thickness direction of the main pole plate 1 and the second extrusion force exerted on the second mastoid 4 can be offset along the thickness direction of the main pole plate 1, further reducing the risk of torque generated by the main pole plate 1 and reducing the processing difficulty of the first mastoid 3 and the second mastoid 4.
[0051] In a specific embodiment, Figure 2 and Figure 3 As shown, along the thickness direction of the main pole plate 1, the first mastoid 3 includes a first end 31 and a second end 32 that are arranged oppositely, and the second end 32 is connected to the body 2. Along the thickness direction of the main pole plate 1, the second mastoid 4 includes a third end 41 and a fourth end 42 that are arranged oppositely, and the fourth end 42 is connected to the body 2. The first end 31 and the third end 41 are planes perpendicular to the thickness direction of the main pole plate 1.
[0052] During the process of assembling the main pole plate 1 to the alkaline electrolytic cell, the first end 31 is subjected to a first extrusion force toward one side of the body 2, and the third end 41 is subjected to a second extrusion force toward one side of the body 2. The first end 31 and the third end 41 are planes perpendicular to the thickness direction of the main pole plate 1, so that when the equipment for assembling the main pole plate 1 is extruded with the first end 31 or the third end 41, the first extrusion force can be evenly distributed on the first end 31 which is a plane, and the second extrusion force can be evenly distributed on the third end 41 which is a plane, so that the first extrusion force on the first mastoid 3 is along the thickness direction of the main pole plate 1, and the second extrusion force on the second mastoid 4 is along the thickness direction of the main pole plate 1, that is, the first extrusion force and the second extrusion force act in opposite directions and can offset each other, thereby further improving the possibility that the first extrusion force and the second extrusion force can offset each other along the thickness direction of the main pole plate 1, so as to reduce the risk of torque formed between the first mastoid 3 and the second mastoid 4, and thus improve the life of the main pole plate 1. At the same time, compared with the first end 31 or the third end 41 being set as other shapes such as a sharp angle or a bevel, the plane can increase the contact area with the assembly equipment, which is beneficial to reduce the stress concentration and wear of the first end 31 and the third end 41, thereby increasing the life of the first mastoid 3 and the second mastoid 4, and further increasing the life of the main pole plate 1.
[0053] The second end 32 is fixedly connected to the body 2 , and the fourth end 42 is fixedly connected to the body 2 .
[0054] In such Figure 1 In the illustrated embodiment, the first mastoid 3 and the second mastoid 4 are both structures with a trapezoidal cross-section, in which the first end 31 of the first mastoid 3 is a plane, and the third end 41 of the second mastoid 4 is a plane, and the first mastoid 3 and the second mastoid 4 with a trapezoidal cross-section have the advantage of easy processing.
[0055] like Figure 4 As shown, along the thickness direction perpendicular to the main pole plate 1, the two ends of the first end 31 and the two ends of the third end 41 are aligned respectively, that is, the first end 31 and the third end 41 have the same size along the length direction of the main pole plate 1, that is, the first mastoid 3 and the second mastoid 4 can be structures with the same structure and shape. Therefore, during the assembly process, the first extrusion force acting on the first end 31 and the second extrusion force acting on the third end 41 can be offset one by one along the thickness direction of the main pole plate 1, that is, the direction of the first extrusion force is opposite to the direction of the second extrusion force and can be offset along the same horizontal line, so as to reduce the possibility of torque generated by the first mastoid 3 and the second mastoid 4 during the installation process, and reduce the risk of deformation of the main pole plate 1. In addition, when the first mastoid 3 and the second mastoid 4 are formed by 3D printing, the three-dimensional model structure of the first mastoid 3 and the second mastoid 4 is the same, which can simplify the steps of 3D printing.
[0056] like Figure 2 and Figure 3 As shown, along the length direction of the main pole plate 1, the dimension L1 of the first end 31 satisfies 5mm≤L1≤10mm, and the dimension L2 of the third end 41 satisfies 5mm≤L2≤10mm. The dimension L1 can be 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc., and the dimension L2 can be 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc.
[0057] When the main pole plate 1 is used in an alkaline electrolytic cell, the electrolyte flows around the periphery of the first nipple 3 and the second nipple 4. Therefore, when L1 is too small, the area of the first end 31 is reduced, and the pressure of the extrusion force acting on the first end 31 during assembly is relatively large, causing the main pole plate 1 to be easily damaged; when L1 is too large, the area of the first end 31 is too large, resulting in the space between adjacent first nipples 3 being too small, which is not conducive to the flow of electrolyte and reduces the stability of the electrolytic cell operation. When L2 is too small, the area of the third end 41 is reduced, and the pressure of the extrusion force acting on the third end 41 during assembly is relatively large, causing the main pole plate 1 to be easily damaged; when L2 is too large, the area of the third end 41 is too large, resulting in the space between adjacent second nipples 4 being too small, which is not conducive to the flow of electrolyte and reduces the stability of the electrolytic cell operation. Therefore, in this embodiment, 5mm≤L1≤10mm,
[0058] When 5 mm ≤ L2 ≤ 10 mm, the areas of the first end 31 and the third end 41 are moderate, which can reduce the pressure during the assembly process and will not affect the flow of the electrolyte.
[0059] like Figure 2 and Figure 3As shown, the dimension M1 of the second end 32 along the length direction of the main pole plate 1 satisfies 10 mm ≤ M1 ≤ 20 mm.
[0060] The dimension M2 of the fourth end 42 along the length direction of the main pole plate 1 satisfies 10mm≤M2≤20mm. The dimension M1 can be 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, 17.5mm, 18mm, 18.5mm, 19mm, 19.5mm, 20mm. The dimension M2 can be 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, 17.5mm, 18mm, 18.5mm, 19mm, 19.5mm, 20mm.
[0061] Therefore, when M1 is too small, the area where the second end 32 is connected to the body 2 is too small, which reduces the reliability of the connection between the first mastoid 3 and the body 2. In the process of assembling the electrolytic cell, there is a possibility that the first mastoid 3 falls off the body 2 under the action of external force; when M1 is too large, the length of the second end 32 along the length direction of the main pole plate 1 is too large, resulting in excessive weight and volume of the first mastoid 3, causing material waste, and at the same time, it is not conducive to the flow of the electrolyte, and the energy consumption of the electrolytic cell is increased. When M2 is too small, the area where the fourth end 42 is connected to the body 2 is too small, which reduces the reliability of the connection between the second mastoid 4 and the body 2. In the process of assembling the electrolytic cell, there is a possibility that the second mastoid 4 falls off the body 2 under the action of external force; when M2 is too large, the length of the second end 32 along the length direction of the main pole plate 1 is too large, resulting in excessive weight and volume of the second mastoid 4, causing material waste, and at the same time, it is not conducive to the flow of the electrolyte, and the energy consumption of the electrolytic cell is increased. In this embodiment, when 10mm≤M1≤20mm, 10mm≤M2≤20mm, the areas of the second end 32 and the fourth end 42 are moderate, so that the connection reliability between the first nipple 3 and the body 2, and the second nipple 4 and the body 2 is high. At the same time, waste of materials is avoided and the impact on the flow of electrolyte is reduced.
[0062] like Figure 2 and Figure 3As shown, along the thickness direction of the main pole plate 1, the protrusion dimension D1 of the first mastoid 3 satisfies 3mm≤D1≤8mm, and the protrusion dimension D2 of the second mastoid 4 satisfies 3mm≤D2≤8mm. The dimension D1 can be 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, etc. The dimension D2 can be 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, etc.
[0063] Therefore, when M1 is too small, the protruding size of the first nipple 3 along the thickness direction of the main pole plate 1 is too small, which is not conducive to the formation of the accommodating cavity 5 between the first nipples 3, is not conducive to enhancing the degree of disturbance to the flow of the electrolyte, is not conducive to reducing the electrolyte concentration difference at various locations in the flow channel, and there is a possibility of uneven distribution of the electrolyte; when M1 is too large, the protruding size of the first nipple 3 along the thickness direction of the main pole plate 1 is too large, which in turn leads to an increase in the spacing between the electrolytic chambers, making the overall structure of the electrolytic cell less compact, resulting in an increase in the resistance of the chambers, and increasing production costs. When M2 is too small, the protrusion size of the second nipple 4 along the thickness direction of the main pole plate 1 is too small, which is not conducive to the formation of the accommodating cavity 5 between the first nipples 3, and is not conducive to enhancing the disturbance degree of the electrolyte flow, and is not conducive to reducing the electrolyte concentration difference at various locations in the flow channel, and there is a possibility of uneven electrolyte distribution; when M2 is too large, the protrusion size of the second nipple 4 along the thickness direction of the main pole plate 1 is too large, which leads to an increase in the spacing between the electrolytic chambers, making the overall structure of the electrolytic cell less compact, resulting in an increase in the resistance of the chambers and an increase in production costs. In this embodiment, when 3mm≤D1≤8mm, 3mm≤D2≤8mm, the protrusion heights of the first nipple 3 and the second nipple 4 are moderate, which can enhance the disturbance degree of the electrolyte, make the flow of the electrolyte more uniform, and will not cause the distance between adjacent electrolytic chambers to be too large.
[0064] In the above embodiments, Figure 1 As shown, the first mastoid 3 and the second mastoid 4 are solid structures, which is beneficial to improving the stiffness of the first mastoid 3 and the second mastoid 4, reducing the risk of deformation of the first mastoid 3 under the action of the first extrusion force, and the risk of deformation of the second mastoid 4 under the action of the second extrusion force, which is beneficial to improving the reliability and stability of the first mastoid 3 and the second mastoid 4 during the assembly process, and further beneficial to improving the service life of the electrolytic cell.
[0065] like Figure 1 As shown, the materials of the main body 2 , the first nipple 3 and the second nipple 4 are stainless steel or titanium. Stainless steel and titanium have good corrosion resistance, which reduces the risk of the main pole plate 1 being corroded by the electrolyte and is beneficial to increasing the service life of the main pole plate 1 .
[0066] In a possible implementation, the body 2 , the first mastoid 3 , and the second mastoid 4 may be made of the same material, which is beneficial to reducing the processing steps in the production of the main pole plate 1 , thereby improving production efficiency and better meeting actual production needs.
[0067] like Figure 4 As shown, the thickness S of the body 2 satisfies 2mm≤S≤3mm. S can be 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, etc.
[0068] When S is too small, the thickness of the body 2 is too small, resulting in a smaller hardness of the body 2, and there is a risk that the main plate 1 is easily deformed or broken during installation, which reduces the reliability of the body 2 installed in the electrolytic cell; when S is too large, the thickness of the body 2 is too large, resulting in excessive weight and volume of the body 2, which is not conducive to achieving lightweight of the body 2, causing material waste and increasing the cost of the body 2. In this embodiment, when 2mm≤S≤3mm, the thickness of the body 2 is moderate, so that the body 2 has better rigidity, reduces the possibility of deformation, and at the same time, avoids waste of materials, which is conducive to reducing costs.
[0069] The present application also provides an electrolytic cell, such as Figure 1 As shown, the electrolytic cell includes the main electrode plate 1 involved in any of the above embodiments.
[0070] When the main pole plate 1 is used in an alkaline electrolytic cell, the main pole plate 1 supports the alkaline electrolytic cell and has the functions of promoting the flow of electrolyte, conducting electricity and reducing contact resistance. Along the thickness direction of the main pole plate 1, the alignment of the first nipple 3 and the second nipple 4 can offset the extrusion force on the main pole plate 1 during installation in the electrolytic cell, reduce the risk of deformation or breakage of the main pole plate 1, and thus help to increase the life of the main pole plate 1, and thus improve the life of the electrolytic cell. At the same time, the first nipple 3 and the second nipple 4 can facilitate the flow of electrolyte in the electrolytic cell to reduce the electrolyte concentration difference at various locations in the flow channel, thereby making the electrolyte distribution more uniform, and can reduce the contact resistance, which is beneficial to improving the working stability of the electrolytic cell.
[0071] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed in the embodiment of the present application should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.
Claims
1. A main plate, characterized in that: The main plate comprises: ontology; A first mastoid and a second mastoid, along a thickness direction perpendicular to the main pole plate, a plurality of the first mastoids are arranged at intervals, and a plurality of the second mastoids are arranged at intervals; Wherein, the first mastoid and the second mastoid protrude along the thickness direction of the main pole plate, and the protrusion directions of the two are opposite, and along the thickness direction of the main pole plate, the first mastoid and the second mastoid are aligned; Along the thickness direction of the main pole plate, the first mastoid includes a first end and a second end that are oppositely arranged, the second end is connected to the body, along the thickness direction of the main pole plate, the second mastoid includes a third end and a fourth end that are oppositely arranged, the fourth end is connected to the body, and the first end and the third end are planes perpendicular to the thickness direction of the main pole plate; Along the length direction of the main pole plate, the size (L1) of the first end satisfies 5mm≤L1≤10mm, and the size (L2) of the third end satisfies 5mm≤L2≤10mm.
2. The main pole plate according to claim 1, characterized in that: Along a direction perpendicular to the thickness of the main pole plate, two ends of the first end are aligned with two ends of the third end.
3. The main pole plate according to claim 1, characterized in that: A dimension (M1) of the second end along the length direction of the main pole plate satisfies 10mm≤M1≤20mm, and a dimension (M2) of the fourth end along the length direction of the main pole plate satisfies 10mm≤M2≤20mm.
4. The main pole plate according to claim 1, characterized in that: Along the thickness direction of the main pole plate, the protrusion dimension (D1) of the first mastoid satisfies 3mm≤D1≤8mm, and the protrusion dimension (D2) of the second mastoid satisfies 3mm≤D2≤8mm.
5. The main pole plate according to claim 1, characterized in that: The first mastoid and the second mastoid aligned along the thickness direction of the main pole plate have the same shape, and the first mastoid and the second mastoid aligned along the thickness direction of the main pole plate have the same size.
6. The main pole plate according to claim 1, characterized in that: The shape of the first mastoid is one or more of a trapezoid, a rectangle, a pentagon, and a hexagon; the shape of the second mastoid is one or more of a trapezoid, a rectangle, a pentagon, and a hexagon.
7. The main pole plate according to any one of claims 1 to 6, characterized in that: The first mastoid and the second mastoid are solid structures.
8. The main pole plate according to any one of claims 1 to 6, characterized in that: The thickness (S) of the body satisfies 2mm≤S≤3mm.
9. The main pole plate according to any one of claims 1 to 6, characterized in that: The first mastoid and the second mastoid are formed on the body by 3D printing.
10. The main pole plate according to any one of claims 1 to 6, characterized in that: The body, the first mastoid and the second mastoid are made of stainless steel or titanium.
11. An alkaline electrolytic cell, characterized in that: The alkaline electrolytic cell comprises the main electrode plate according to any one of claims 1-10.