Electrode plate and electrolysis device
By designing the electrode plates with multiple diversion areas and convex parts, the problem that the electrolyte cannot be effectively dispersed effectively on the surface of the electrode plate, and the more uniform electrolyte dispersed and higher electrolytic efficiency.
Patent Information
- Application Number
- CN202323368891.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-08
AI Technical Summary
The electrolyte of the existing electrolytic cell cannot effectively disperse to each surface area of the electrode plate during the flow of the electrode plate surface, resulting in the effective electrolytic area between the electrolytic solution and the electrode plate is much smaller than the actual area of the electrode plate, affecting the electrolytic efficiency.
Design a kind of electrode board, which forms the first diversion area and the second diversion area. The peripheral setting of fluid guide and the export position of the fluid. Several first convex parts are set up in the first diversion area. In the second convex part, the distribution density of the first convex part is greater than the distribution density of the second convex part to improve the flow and decentralization effect of the electrolyte.
By optimizing the surface structure of the electrode board, the electrolyte can more uniformly disperse to each surface of the electrode plate, effectively reduce the flow blind area of the flow, expand the effective electrolytic area of the electrode board, and improve the electrolytic efficiency of the electrolytic groove.
Smart Images
Figure CN222411876U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrolysis devices, in particular to an electrode plate. Background Art
[0002] In the process of the electrolyte in the existing electrolytic cell flowing on the surface of the electrode plate, it cannot be dispersed to various surface areas of the electrode plate, and even flow blind areas where no liquid flows in will be formed on both sides of the electrode plate. In this way, the effective electrolysis area between the electrolyte and the electrode plate is much smaller than the actual area of the electrode plate, which seriously affects the electrolysis efficiency of the electrolytic cell. Utility Model Content
[0003] The main purpose of the utility model is to provide an electrode plate for use in an electrolysis device, aiming to improve the flow conductivity of the electrode plate, thereby improving the flow distribution effect of the electrolyte on the surface of the electrode plate and increasing the effective electrolysis area of the electrode plate.
[0004] To achieve the above-mentioned purpose, the surface of the electrode plate proposed by the utility model is formed with a first guide area and a second guide area, and the periphery of the electrode plate has a fluid inlet position and a fluid outlet position distributed along a first direction, and the fluid inlet position and the fluid outlet position are respectively arranged on opposite sides of the first guide area and the second guide area, the fluid inlet position is arranged corresponding to the first guide area, and the fluid outlet position is arranged corresponding to the second guide area; the first guide area is convexly provided with a plurality of first convex portions, and the second guide area is convexly provided with a plurality of second convex portions, and the distribution density of the first convex portions is greater than the distribution density of the second convex portions.
[0005] Optionally, the first convex portion is configured in a spherical shape, a cylindrical shape, or a terrace shape.
[0006] Optionally, the first convex portion is configured in a hemispherical shape, a cylindrical shape, an ellipsoidal shape, a prism shape, or a truncated cone shape.
[0007] Optionally, the second convex portion is configured as a strip-shaped convex portion, and an extension direction of the second convex portion is parallel to the first direction.
[0008] Optionally, the second convex portion has a guide surface extending along the first direction, and the guide surface is configured as a cylindrical side surface, a truncated cone side surface, or a prism side surface.
[0009] Optionally, the first protrusions are distributed in multiple rows along the first direction.
[0010] Optionally, the plurality of second protrusions are distributed in multiple rows along the first direction.
[0011] Optionally, a plurality of the first protrusions in any row are correspondingly arranged into multiple columns.
[0012] Optionally, the second protrusions in adjacent rows are staggered.
[0013] Optionally, the first convex portion and / or the second convex portion is formed on the electrode plate by stamping.
[0014] Optionally, any of the aforementioned electrode plates is configured as a bipolar plate, and the first convex portion and the second convex portion are provided on opposite sides of the electrode plate.
[0015] The utility model also provides an electrolysis device, comprising any one of the above-mentioned electrode plates.
[0016] In the technical solution of the utility model, the electrode plate is provided with a first guide area and a second guide area, the first guide area is provided with a plurality of first protrusions, and the second guide area is provided with a plurality of second protrusions. When the electrolyte flows through the electrolytic plate, the electrolyte is diverted under the action of the first protrusions and the second protrusions, so that the electrolyte can flow to the surface of each area of the electrolytic plate, effectively reducing the fluid blind area of the electrolytic plate; in addition, the density of the protrusions distributed in the two guide areas is different, the diversion capacity of the first guide area is greater than the diversion capacity of the second guide area, and the electrolyte flowing through the first guide area can be effectively reduced in flow velocity, so the flow The dispersion effect of the electrolyte passing through the first guide area is greater than the dispersion effect of the electrolyte flowing through the second guide area, so that the electrolyte can be more evenly dispersed and flow to various surfaces of the electrolytic plate; in the flow direction of the electrolyte, the electrolyte first flows through the first guide area and then flows through the second guide area, that is, the electrolyte first passes through the first guide area for one diversion and then passes through the second guide area for a second diversion, so that the electrolyte is more evenly dispersed on the surface of various areas of the electrolytic plate. In this way, the electrolytic plate and the electrolyte can fully contact each other, that is, the effective electrolysis area of the electrolytic plate is expanded, thereby improving the electrolysis efficiency of the electrolytic cell to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0018] Figure 1 It is a front view of an embodiment of an electrode plate of the utility model;
[0019] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0020] Figure 3 for Figure 1 Rear view of the center electrode plate.
[0021] Description of Figure Numbers:
[0022] Label name Label name 10 Electrode Plate 200 frame 100 Electrolytic plate 210 First liquid inlet 110 The first flow area 220 First gas outlet 111 first convex part 230 Second liquid inlet 120 The second flow diversion area 240 Second gas outlet 121 second convex portion
[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or abutment, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0028] The utility model provides an electrode plate applied to an electrolysis device.
[0029] Reference Figures 1 to 3 In one embodiment of the utility model, the surface of the electrode plate 10 is formed with a first flow guide area 110 and a second flow guide area 120, and the periphery of the electrode plate 10 has fluid introduction positions distributed along a first direction (i.e. Figure 1 The fluid introduction position and the fluid outlet position are respectively arranged on opposite sides of the first flow guide area 110 and the second flow guide area 120, the fluid introduction position is arranged corresponding to the first flow guide area 110, and the fluid outlet position is arranged corresponding to the second flow guide area 120; the first flow guide area 110 is convexly provided with a plurality of first convex portions 111, and the second flow guide area 120 is convexly provided with a plurality of second convex portions 121, and the distribution density of the first convex portions 111 is greater than the distribution density of the second convex portions 121.
[0030] For reference Figure 1It should be understood that the electrode plate 10 is installed in the electrolytic chamber of the electrolytic cell. The electrode plate 10 includes an electrolytic plate 100 and a frame 200. The frame 200 is provided with a liquid inlet and a gas outlet. After the electrolyte enters the electrolytic chamber from the liquid inlet, an electrolytic reaction occurs on the surface of the electrolytic plate 100, thereby generating gas accordingly. The gas generated by the electrolytic reaction is precipitated from the gas outlet and flows to the gas collection container. In the present technical solution, the electrode plate 10 is provided with a fluid inlet position and a fluid outlet position, wherein the fluid inlet position is arranged corresponding to the first flow guide area 110, and the fluid outlet position is arranged corresponding to the second flow guide area 120. It should be noted that the fluid in the fluid inlet position refers to liquid, and the fluid in the fluid outlet position refers to gas. Thus, the above technical solution can be understood as follows: when the electrolyte flows into the electrolysis chamber from the liquid inlet, it needs to first pass through the fluid inlet position, and then flow to the first flow guide area 110; the gas generated by the electrolysis reaction between the electrolyte and the electrolysis plate 100 needs to first pass through the fluid outlet position, and then precipitate out of the electrolysis chamber from the gas outlet.
[0031] In the technical solution of the utility model, the electrode plate 10 is provided with a first guide area 110 and a second guide area 120, the first guide area 110 is provided with a plurality of first protrusions, and the second guide area 120 is provided with a plurality of second protrusions. When the electrolyte flows through the electrolytic plate 100, the electrolyte is diverted under the action of the first protrusions and the second protrusions, so that the electrolyte can flow to the surface of each area of the electrolytic plate 100, effectively reducing the fluid blind area of the electrolytic plate 100; in addition, the density of the protrusions distributed in the two guide areas is different, the diversion capacity of the first guide area 110 is greater than the diversion capacity of the second guide area 120, and the electrolyte flowing through the first guide area 110 can be effectively reduced in flow velocity, so The dispersion effect of the electrolyte flowing through the first guide area 110 is greater than the dispersion effect of the electrolyte flowing through the second guide area 120, so that the electrolyte can be more evenly dispersed and flow to various surfaces of the electrolytic plate 100; in the flow direction of the electrolyte, the electrolyte first flows through the first guide area 110, and then flows through the second guide area 120, that is, the electrolyte first passes through the first guide area 110 for a split, and then passes through the second guide area 120 for a second split, so that the electrolyte is more evenly dispersed on the surface of various areas of the electrolytic plate 100, so that the electrolytic plate 100 and the electrolyte can be fully contacted, that is, the effective electrolysis area of the electrolytic plate 100 is expanded, thereby improving the electrolysis efficiency of the electrolytic cell to a certain extent.
[0032] It should be noted that the effective electrolysis area refers to the area of the electrolytic plate 100 that the electrolyte can contact, and the electrolyte can undergo an electrolytic reaction on the electrolytic plate 100 corresponding to the effective electrolysis area.
[0033] In an optional embodiment, the first protrusion 111 is configured to be spherical, cylindrical or table-shaped. Specifically, when the electrolyte flows through the first flow-conducting area 110, the electrolyte is blocked by the first protrusion 111 in the original flow path, thereby forming a plurality of shunt branches, wherein, when the first protrusion 111 is configured to be spherical, cylindrical or truncated table-shaped, at least part of the contact surface between the electrolyte and the first protrusion 111 is streamlined, and when the first protrusion 111 shunts the electrolyte, the flow resistance between the electrolyte and the first protrusion 111 is small, and the first protrusion 111 will not affect the actual flow effect of the electrolyte; when the first protrusion 111 is configured to be a prism or a prism, when the electrolyte flows through the first protrusion 111, the various corrugations of the first protrusion 111 can better shunt the electrolyte, so that the electrolyte can be more evenly dispersed to various surfaces of the electrolytic plate 100.
[0034] Optionally, the first protrusion 111 can be configured as a triangular prism. In this way, the first protrusion 111 can effectively divert the electrolyte and reduce the flow resistance between the electrolyte and the first protrusion 111 to a certain extent, thereby ensuring the flow effect of the electrolyte in the first guide area 110.
[0035] Optionally, the first protrusion 111 is configured in a hemispherical shape, a cylindrical shape, an elliptical cylindrical shape, a prism shape, or a truncated cone shape to ensure the diversion effect of the first guide area 110 on the electrolyte and the flow effect of the electrolyte in the first guide area 110 .
[0036] In an optional embodiment, the second protrusion 121 is configured as a strip-shaped protrusion, and the extension direction of the second protrusion 121 is parallel to the first direction. In this way, the second guide area 120 can realize the diversion of the electrolyte and can also guide the subsequent flow direction of the electrolyte to a certain extent; in addition, the gas generated by the electrolysis reaction of the electrolyte on the electrolysis plate 100 can also flow to the fluid outlet position under the guidance of the second protrusion 121, and then precipitate out of the electrolysis chamber from the first gas outlet 220.
[0037] It should be noted that several second protrusions 121 can perform diversion operations and form multiple liquid flow channels. However, since the second protrusions 121 are arranged at intervals, when the fluid flows along any liquid flow channel, it can be diverted by any second protrusion 121 arranged on both sides of the flow channel, thereby being diverted to form multiple fluid paths. In this way, the second guide area 120 can achieve both the guide effect and the diversion effect, thereby further improving the flow effect of the electrolyte in the electrolytic plate 100.
[0038] In other embodiments, the first protrusion 111 and the second protrusion 121 have the same structure.
[0039] In a specific embodiment, the second protrusion 121 has a guide surface extending along the first direction, and the guide surface is configured as a cylindrical side surface, a truncated cone side surface, or a prism side surface to enhance the effective guiding effect on the fluid so that the fluid can flow along the first direction.
[0040] In an optional embodiment, reference may be made to Figure 2 A plurality of first protrusions 111 are distributed in multiple rows along the first direction. Thus, in the first flow guide area 110, when the electrolyte flows in the first direction, the multiple rows of first protrusions 111 can divert the electrolyte multiple times. Thus, the diversion effect of the first flow guide area 110 on the electrolyte is improved, and the formation of a flow dead zone on the surface of the electrode plate 10 is further reduced.
[0041] Furthermore, any row of first protrusions 111 are correspondingly arranged into multiple columns, so that the flow speed of the electrolyte on each surface in the first guide area 110 is similar, the flow equalization effect of the first guide area 110 is improved, and the flow dead zone formed on the surface of the electrode plate 10 is further reduced.
[0042] In an optional embodiment, a plurality of second protrusions 121 are distributed in multiple rows along the first direction. Thus, in the second flow guide area 120, during the flow of the electrolyte in the first direction, the multiple rows of second protrusions 121 can divert the electrolyte multiple times. This improves the diversion effect of the second flow guide area 120 on the electrolyte, and further reduces the formation of flow dead zones on the surface of the electrode plate 10.
[0043] In an optional embodiment, adjacent rows of second protrusions 121 are staggered, so that the second guide area 120 can divert and guide the flowing electrolyte on any surface of the electrode plate 10 at multiple angles, and the flow speed of the electrolyte on each surface in the second guide area 120 is similar, thereby enhancing the guiding and flow balancing effect of the second guide area 120, and further improving the guiding capacity of the electrode plate 10.
[0044] In an optional embodiment, the first protrusion 111 and / or the second protrusion 121 are formed on the electrode plate 10 by stamping. Thus, in the actual processing, the electrolytic plate 100 to be processed can be directly placed on the stamping template, and then the stamping operation can be performed to form the above-mentioned first protrusion 111 and the second protrusion 121 on the electrode plate 10. Since the stamping process is simple to operate, the stamping template can be reused, and no additional consumables are required to form the first protrusion 111 and / or the second protrusion 121, the use of the stamping process to process the electrolytic plate 100 can effectively reduce the production cost of the electrode plate 10, and to a certain extent alleviate the production burden of the electrode plate 10 manufacturer.
[0045] In other embodiments, the first protrusion 111 and / or the second protrusion 121 are welded to the electrolytic plate 100 .
[0046] Further, when the first protrusion 111 is configured as a hemispherical shape, the height of the hemispherical protrusion is less than or equal to the radius of the sphere. If the height of the hemispherical protrusion is greater than the radius of the sphere, after the electrolytic plate 100 is stamped, the mouth radius of the first protrusion 111 is less than the radius of the spherical center section of the protrusion module on the template. Therefore, in the process of demolding the electrolytic plate 100, the mouth of the first protrusion 111 will interfere with the corresponding protrusion module on the template, thereby causing the mouth of the first protrusion 111 to be stretched and deformed, thereby causing the electrolytic plate 100 to deform. In order to enable the electrolytic plate 100 to be smoothly separated from the stamping template, the height of the hemispherical protrusion is set to be less than or equal to the radius of the sphere. In this way, in the process of demolding, the mouth radius of the first protrusion 111 is always greater than or equal to the radius of any cross section of the protrusion module, and the first protrusion 111 and the protrusion module do not interfere with each other during the demolding process.
[0047] In an optional embodiment, any of the aforementioned electrode plates 10 is configured as a bipolar plate, and the first convex portion 111 and the second convex portion 121 are disposed on opposite sides of the electrode plate 10 .
[0048] Specifically, please refer to Figure 3 Two electrolytic plates 100 are mounted on the frame 200 of the electrode plate 10, and the working surfaces of the two electrolytic plates 100 are arranged opposite to each other; an electrolytic chamber is correspondingly arranged on each side of the electrode plate 10, and a second liquid inlet 230 and a second gas outlet 240 are relatively opened on the frame 200, wherein the first liquid inlet 210 and the second liquid inlet 230 are arranged opposite to each other, and the first gas outlet 220 and the second gas outlet 240 are arranged opposite to each other, and the electrolyte flows into the second electrolytic chamber from the second liquid inlet 230 and flows toward the second gas outlet 240 along the surface of the electrolytic plate 100, and the gas generated by the electrolysis of the electrolyte leaves the second electrolytic chamber from the second gas outlet 240. It should be noted that since the gases (hydrogen and oxygen) generated by the electrolysis reaction in the electrolytic chambers on both sides of the electrode plate 10 are different, the two gases need to be isolated and collected to avoid safety hazards caused by gas mixing.
[0049] In one embodiment, the frame 200 is provided with a plurality of parallel liquid-passing incisions so that the first liquid inlet 210 and the second liquid inlet 230 are connected to their corresponding electrolytic chambers. The plurality of parallel liquid-passing incisions can perform preliminary diversion operations on the liquid to a certain extent, so as to assist the electrolyte to flow more evenly to various surfaces of the electrolytic plate 100.
[0050] In one embodiment, the frame 200 is further provided with a plurality of parallel ventilation cutouts so that the first gas outlet 220 and the second gas outlet 240 are connected to their corresponding electrolytic chambers. When the gas is released from the electrolytic chamber, the plurality of parallel ventilation cutouts can divert the gas to prevent the gas from converging and causing excessive local gas pressure at the gas outlet, thereby affecting the connection stability of the gas collecting structure connected to the gas outlet. If the connection of the gas collecting structure becomes loose, the collection effect of the gas after it is released from the electrolytic chamber will be seriously affected.
[0051] The utility model also proposes an electrolysis device, which includes an electrode plate. The specific structure of the electrode plate refers to the above embodiment. Since the electrolysis device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
[0052] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An electrode plate, used in an electrolysis device, characterized in that: The surface of the electrode plate is formed with a first flow guide area and a second flow guide area, and the periphery of the electrode plate is provided with a fluid introduction position and a fluid outlet position distributed along a first direction, the fluid introduction position and the fluid outlet position are respectively arranged on opposite sides of the first flow guide area and the second flow guide area, the fluid introduction position is arranged correspondingly to the first flow guide area, and the fluid outlet position is arranged correspondingly to the second flow guide area; The first flow guiding area is provided with a plurality of first convex parts, the second flow guiding area is provided with a plurality of second convex parts, and the distribution density of the first convex parts is greater than the distribution density of the second convex parts.
2. The electrode plate according to claim 1, characterized in that: The first convex portion is configured in a spherical shape, a cylindrical shape, or a terrace shape.
3. The electrode plate according to claim 2, characterized in that: The first convex portion is configured in a hemispherical shape, a cylindrical shape, an ellipsoidal cylinder shape, a prism shape, or a truncated cone shape.
4. The electrode plate according to claim 1, characterized in that: The second convex portion is configured as a strip-shaped convex portion, and an extending direction of the second convex portion is parallel to the first direction.
5. The electrode plate according to claim 4, characterized in that: The second convex portion has a guide surface extending along the first direction, and the guide surface is configured as a cylindrical side surface, a truncated cone side surface, or a prism side surface.
6. The electrode plate according to claim 1, characterized in that: The first protrusions are distributed in multiple rows along the first direction; And / or, a plurality of the second protrusions are distributed in multiple rows along the first direction.
7. The electrode plate according to claim 6, characterized in that: A plurality of the first protrusions in any row are correspondingly arranged into a plurality of columns; And / or, the second protrusions in adjacent rows are arranged in a staggered manner.
8. The electrode plate according to any one of claims 1 to 7, characterized in that: The first convex portion and / or the second convex portion are formed on the electrode plate by stamping.
9. The electrode plate according to any one of claims 1 to 7, characterized in that: The electrode plate is configured as a bipolar plate, and the first convex portion and the second convex portion are disposed on opposite sides of the electrode plate.
10. An electrolysis device, characterized in that: The electrode plate comprises the electrode plate described in any one of claims 1 to 9.