Electrode plate, electrolysis device and electrolysis hydrogen and oxygen production system
By designing an accommodating tank with arc-shaped and straight-sided structure on the electrode plate, and combining multiple inlet ports and inlet flow channels, the problem of uneven flow rate of the electrolytic solution is solved, the gas production efficiency and gas discharge efficiency of the electrolytic device are improved, and the practicality and reliability of the electrode plate are enhanced.
Patent Information
- Application Number
- CN202422285098.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-18
AI Technical Summary
In existing electrolytic devices, the flow rate of the electrolytic solution in the small chamber of the electrode plate is uneven, resulting in low overall gas production efficiency, affecting the working efficiency and practicality of the device.
The accommodating tank design adopts arc-shaped and straight-edged structures, combining multiple liquid inlets and liquid inlet runners to ensure that the electrolytic solution is evenly distributed in the electrode plate, and the gas discharge efficiency is improved through the arc-shaped exhaust port.
The uniform flow of the electrolytic solution in the electrode plate is achieved, the electrolytic gas production efficiency and gas flow rate are improved, and the practicality and reliability of the electrode plate is enhanced.
Smart Images
Figure CN223163506U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electrolysis equipment, and particularly relates to an electrode plate, an electrolysis device, and an electrolysis hydrogen and oxygen production system. Background Art
[0002] In the related art, an electrolysis device usually stacks a plurality of electrode plates to form a plurality of electrolysis chambers. By injecting an electrolysis solution into the electrolysis chambers and applying an electric current to the electrolysis plates, the electrolysis solution can react under the promotion of electric energy to generate gas, realizing the stable operation of the electrolysis device.
[0003] However, most of the electrode plates are arranged in a circular plate structure. When the electrolysis solution is injected into the electrolysis chamber through the injection port on one side of the electrode plate, it is easy to cause the flow rate of the electrolysis solution in the central area of the electrolysis chamber to be relatively fast, while the flow rate of the electrolysis solution on both sides of the electrolysis chamber is relatively low. As a result, the flow rate distribution of the electrolysis solution in the electrolysis chamber is uneven, affecting the overall gas production efficiency of the electrolysis device and reducing the working efficiency and practicality of the electrolysis device. Utility Model Content
[0004] The main purpose of the present application is to propose an electrode plate, an electrolysis device, and an electrolysis hydrogen and oxygen production system, aiming to improve the overall structure of the electrode plate, achieve uniform liquid inlet in the electrode plate, and improve the gas production efficiency of the electrolysis device.
[0005] To achieve the above object, the electrode plate proposed by the present application includes a main electrode plate and an electrode frame. The electrode frame surrounds and connects the main electrode plate and encloses a receiving groove with the main electrode plate. The receiving groove has opposite first side walls and second side walls. The first side wall is arc-shaped, and the second side wall is straight or arc-shaped protruding towards the first side wall. The electrode frame is provided with an exhaust channel and a liquid inlet flow channel. The first side wall is provided with an exhaust port communicating with the exhaust channel, and the second side wall is provided with a liquid inlet communicating with the liquid inlet flow channel.
[0006] In one embodiment, the receiving groove further has two opposite third side walls, and the two third side walls connect the first side wall and the second side wall. The third side wall is straight.
[0007] In one embodiment, the second side wall is provided with at least two liquid inlets, and at least two liquid inlets respectively communicate with the liquid inlet flow channel.
[0008] In one embodiment, the electrode frame is provided with at least two liquid inlet flow channels, and one liquid inlet communicates with one liquid inlet flow channel.
[0009] In one embodiment, a partition is provided in the exhaust channel, and the partition divides the exhaust channel into at least two channel units.
[0010] In one embodiment, a plurality of flow guiding structures are provided on the plate surface of the main electrode plate, and the plurality of flow guiding structures are arranged in an array.
[0011] In one embodiment, the flow guiding structure and the main electrode plate are of an integrally formed structure.
[0012] In one embodiment, the flow guiding structure is one or more of a hemispherical papilla, a frustum-shaped papilla, a pyramid-shaped papilla or a prism-shaped papilla.
[0013] In one embodiment, the main electrode plate has a first plate surface and a second plate surface facing each other. The pole frame and the first plate surface enclose a containing groove, and the pole frame and the second plate surface enclose another containing groove. The two containing grooves are independent of each other. The pole frame has a first end face and a second end face facing each other. The exhaust channel and the liquid inlet channel are provided on both the first end face and the second end face. The pole frame is further provided with a first air outlet and a second air outlet. The exhaust channel on the first end face is communicated with the first air outlet, and the exhaust channel on the second end face is communicated with the second air outlet.
[0014] The present application also provides an electrolysis device, which includes a device body and an electrode plate. The electrode plate is the above-mentioned electrode plate, and the electrode plate is installed on the device body.
[0015] The present application also provides an electrolytic hydrogen and oxygen production system, which includes an electrolysis device and a purification device. The electrolysis device is the above-mentioned electrolysis device, and the electrolysis device is connected to the purification device through a pipeline.
[0016] The technical solution of the present application makes the first side wall of the containing groove be arranged in an arc structure, and makes the second side wall of the containing groove be arranged in a straight edge or an arc protruding towards the first side wall, so that the containing groove of the electrode plate can be arranged in a semi-circular groove body structure. Furthermore, liquid can be injected better at the liquid inlet of the relatively flat second side wall to improve the consistency of the liquid injection flow rate in the containing groove, so that the liquid level in the containing groove rises gently, and the overall flow rate distribution of the electrolytic solution in the containing groove is more uniform, which is beneficial to better improving the overall electrolytic gas production efficiency of the electrode plate. At the same time, the first side wall provided with the exhaust port is arranged in an arc shape, so that the gas generated by electrolysis can be more smoothly collected and exhausted from the exhaust port, reducing the generation of bubbles in the containing groove, which is beneficial to better improving the flow rate and air pressure of the gas produced by the electrode plate, and further improving the practicability and reliability of the electrode plate. Description of the Drawings
[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0018] Figure 1 Schematic diagram of the structure of an embodiment of the electrode plate provided by the present application;
[0019] Figure 2 is Figure 1 Cross-sectional view at A-A in
[0020] Figure 3 Schematic diagram of the structure of another embodiment of the electrode plate provided by the present application;
[0021] Figure 4 Schematic diagram of the structure of yet another embodiment of the electrode plate provided by the present application.
[0022] Explanation of the reference numerals in the drawings:
[0023] 100, electrode plate; 10, accommodation groove; 11, first side wall; 13, second side wall; 15, third side wall; 30, main electrode plate; 31, flow guiding structure; 50, electrode frame; 51, liquid inlet flow channel; 53, exhaust channel; 531, partition member; 57, first air outlet; 59, second air outlet. Detailed implementation manners
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.
[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present application, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0026] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0027] In the related art, an electrolysis device can usually stack a plurality of electrode plates to form a plurality of electrolysis chambers. By injecting an electrolytic solution into the electrolysis chamber and energizing the electrolysis plates, the electrolytic solution can react under the promotion of electric energy to generate gas, realizing the stable operation of the electrolysis device. However, most of the electrode plates are arranged in a circular plate structure. When the electrolytic solution is injected into the electrolysis chamber through the injection port on one side of the electrode plate, it is easy to cause the flow rate of the electrolytic solution in the central area of the electrolysis chamber to be relatively fast, while the flow rate of the electrolytic solution on both sides of the electrolysis chamber is relatively low. As a result, the flow rate distribution of the electrolytic solution in the electrolysis chamber is uneven, affecting the overall gas production efficiency of the electrolysis device and reducing the working efficiency and practicability of the electrolysis device. To address the above problems, the present application proposes an electrode plate 100.
[0028] Please refer to Figures 1 to 3 , in an embodiment of the present application, the electrode plate 100 includes a main electrode plate 30 and an electrode frame 50. The electrode frame 50 surrounds and connects the main electrode plate 30, and encloses a receiving groove 10 with the main electrode plate 30. The receiving groove 10 has opposite first side walls 11 and second side walls 13. The first side wall 11 is arranged in an arc shape, and the second side wall 13 is arranged in a straight edge or an arc shape protruding towards the first side wall 11. The electrode frame 50 is provided with an exhaust passage 53 and a liquid inlet passage 51. The first side wall 11 is provided with an exhaust port communicating with the exhaust passage 53, and the second side wall 13 is provided with a liquid inlet port communicating with the liquid inlet passage 51.
[0029] It can be understood that the electrode plate 100 can be formed by a pole frame 50 that is connected around the outer periphery of the main pole plate 30. The thickness of the pole frame 50 is set to be greater than the thickness of the main pole plate 30, so that the pole frame 50 and the main pole plate 30 can be enclosed to form a accommodating groove 10 with an open notch. At this time, the inner wall of the pole frame 50 can be formed as the side wall of the accommodating groove 10, and the plate surface of the main pole plate 30 can be formed as the bottom wall of the accommodating groove 10. When the electrolysis device stacks multiple electrode plates 100 in the electrolytic cell, the pole frames 50 of the multiple electrode plates 100 can be tightly connected in sequence in the electrolytic cell, so that the stacking and sealing of the multiple electrode plates 100 in the electrolysis device are realized, and the accommodating grooves 10 of two adjacent electrode plates 100 are closed to form a relatively closed electrolysis chamber. By conducting electricity to the electrodes arranged in the electrolysis chamber, the electrolytic solution can be stably electrolyzed in the electrolysis chamber to produce hydrogen and oxygen, and the electrolysis device can collect the gases produced in the accommodating tanks 10 of the two electrode plates 100 respectively. Then, by connecting the gas output end of the electrolysis device and the input end of the purification device through a pipeline, the purification device can be used to purify the gas produced and output by the electrolysis device, ensuring that the electrolysis hydrogen and oxygen production system can stably and reliably output hydrogen and oxygen with purity that meets the requirements. Among them, the main pole plate 30 and the pole frame 50 can be an integrally formed structure, which can be produced as a whole by 3D printing technology or integral casting technology, so that the electrode plate 100 can have good overall structural strength. Alternatively, the main pole plate 30 and the pole frame 50 can be connected into one by welding or bonding, so that the electrode plate 100 can be produced by separately processing each component and then integrated and installed, which is conducive to better reducing the production and processing difficulty of the electrode plate 100.
[0030] In the present application, by making the first side wall 11 of the accommodation groove 10 arc-shaped and the second side wall 13 of the accommodation groove 10 straight-sided, the overall shape of the accommodation groove 10 can be set as a semi-circular groove structure. In this way, the overall flow rate of the electrolytic solution after being injected into the accommodation groove 10 is more uniform on the straight second side wall 13, better realizing the gentle rise of the liquid level in the two closed accommodation grooves 10, and further improving the electrolysis operation efficiency and structural reliability of the electrolysis device; alternatively, the second side wall 13 of the accommodation groove 10 can be arc-shaped and convex towards the first side wall 11. At this time, the linear distance between each liquid inlet provided on the second side wall 13 and the first side wall 11 can be better kept consistent, so that the liquid flow injected from the liquid inlet can better fill the accommodation groove 10 at the same time, realizing the uniform flow of the electrolytic solution in the accommodation groove 10, and further improving the working efficiency of the electrolysis device. Compared with the electrode plate 100 with an accommodation groove 10 similar to a circle, adopting the structure of the electrode plate 100 in the present application can effectively avoid the excessive flow rate of the electrolytic solution in the central area of the accommodation groove 10 after flowing into the accommodation groove 10 and the too small flow rate in the two side areas of the accommodation groove 10, preventing the existence of dead zones in the accommodation groove 10 where the electrolytic solution does not flow, reducing the energy consumption waste caused by the dead zones, and being beneficial to better improving the overall electrolytic gas production efficiency of the electrode plate 100. At the same time, by making the first side wall 11 provided with the exhaust port adopt an arc-shaped wall structure, the characteristic that the arc-shaped wall has a certain drainage effect can be utilized, so that the gas generated in the electrode plate 100 can flow more smoothly along the first side wall 11 to the exhaust port and be discharged from the exhaust channel 53 in a centralized manner, which is beneficial to reducing the obstructive effect of the inner wall of the accommodation groove 10 on the generated gas, better reducing the bubbles formed by the retention of the gas generated in the electrode plate 100, so that the gas generated by the electrolysis device can be output at a relatively high flow rate, better realizing the high-pressure gas production effect of the electrode plate 100, and further improving the practicality and reliability of the electrode plate 100.
[0031] The technical solution of the present application makes the first side wall 11 of the accommodation groove 10 adopt an arc-shaped structure, and the second side wall 13 of the accommodation groove 10 adopt a straight side or an arc-shaped structure convex towards the first side wall 11, so that the accommodation groove 10 of the electrode plate 100 can be set as a semi-circular groove structure. Furthermore, injecting liquid at the liquid inlet of the relatively flat second side wall 13 can better improve the consistency of the liquid injection flow rate in the accommodation groove 10, so that the liquid level in the accommodation groove 10 rises gently, and the overall flow rate distribution of the electrolytic solution in the accommodation groove 10 is more uniform, which is beneficial to better improving the overall electrolytic gas production efficiency of the electrode plate 100. At the same time, making the first side wall 11 provided with the exhaust port arc-shaped can make the gas generated by electrolysis flow more smoothly from the exhaust port for centralized exhaust, reducing the generation of bubbles in the accommodation groove 10, which is beneficial to better improving the flow rate and air pressure of the gas produced by the electrode plate 100, and further improving the practicality and reliability of the electrode plate 100.
[0032] Referring to Figure 1 、 Figure 3 and Figure 4 In an embodiment of the present application, at least two liquid inlets are provided on the second side wall 13, and the at least two liquid inlets are respectively communicated with the liquid inlet channels 51.
[0033] In this embodiment, by providing at least two liquid inlets on the second side wall 13 and connecting the at least two liquid inlets to the liquid inlet channels 51, the electrolyte flowing in the liquid inlet channels 51 can flow out from the at least two liquid inlets, and then the electrolytic solution can be injected into the accommodation groove 10 simultaneously by using the at least two liquid inlets. The liquid level in the accommodation groove 10 can rise smoothly by injecting liquid from multiple liquid inlets on the second side wall 13 at the same time, and the difference in the liquid flow velocity of the liquid inlet in the accommodation groove 10 can be reduced, so that the flow velocity distribution of the electrolytic solution in the accommodation groove 10 is more uniform, enabling the accommodation groove 10 to be better filled with the electrolytic solution for electrolysis reaction, and further improving the practicability and structural reliability of the electrode plate 100.
[0034] Among them, the number of liquid inlets on the second side wall can be set to three as shown in Figure 1 、 Figure 3 and Figure 4 By arranging three liquid inlets at intervals on the second side wall 13, the electrolytic solution can be injected into the accommodation groove 10 from the three liquid inlets at the same time, so that the electrolytic solution can better flow into the accommodation groove 10 from the entire second side wall 13, better reducing the difference in the liquid flow velocity of the liquid inlet in the accommodation groove 10, effectively reducing the dead zone where the electrolytic solution does not flow to in the accommodation groove 10, enabling the electrolytic solution to more stably fill the entire accommodation groove 10, and further improving the structural stability and reliability of the electrode plate 100.
[0035] Referring to Figure 1 、 Figure 3 and Figure 4 In an embodiment of the present application, the electrode frame 50 is provided with at least two liquid inlet channels 51, and one liquid inlet is communicated with one liquid inlet channel 51.
[0036] In this embodiment, by using at least two liquid inlet channels 51 to communicate with two liquid inlets respectively for liquid injection, the flow rate difference of the liquid flows injected from the two liquid inlets can be better reduced, so that the electrode plate 100 can achieve a more uniform liquid inlet effect in terms of the overall flow rate, ensure sufficient electrolysis operation in the accommodation groove 10, and better improve the overall gas production efficiency of the electrode plate 100. The electrode plate 100 can determine the number of liquid inlets according to the overall length of the second side wall 13, so that the electrode plate 100 can achieve a more uniform liquid inlet effect; at the same time, the distance between two adjacent liquid inlets can be set according to the flow rate of the liquid flow diffusion after the electrolytic solution is injected, so that the flow rate of the liquid flows converging at this position after the two liquid inlets diffuse can be the same as the flow rate of the liquid flow flowing vertically out of the liquid inlet, further improving the overall flow rate consistency of the electrolytic solution in the accommodation groove 10, realizing a more stable and reliable electrolysis operation of the electrode device, and further improving the practicability and reliability of the electrode plate 100.
[0037] Among them, as Figure 1 , Figure 3 and Figure 4 shown, three liquid inlets can be provided on the second side wall 13. At this time, three liquid inlet channels 51 can be correspondingly provided in the electrode frame 50, so that the three liquid inlet channels 51 communicate with the three liquid inlets respectively. Furthermore, a certain amount of electrolytic solution can be input at each of the three liquid inlets, and at the same time, the three liquid inlets can independently inject the electrolytic solution into the accommodation groove 10, which is beneficial to better reducing the flow rate and flow volume differences of the liquid flows injected from the three liquid inlets into the accommodation groove 10, ensuring the stability of liquid injection at the three liquid inlets, so that the electrolytic solution can flow into the accommodation groove 10 more stably from the entire second side wall 13, better realizing the stable rise of the liquid level in the accommodation groove 10, realizing a more stable and reliable electrolysis operation of the electrode device, and further improving the practicability and reliability of the electrode plate 100.
[0038] Referring to Figure 1 and Figure 3 , in the embodiment of the present application, the accommodation groove 10 further has two opposite third side walls 15. The two third side walls 15 connect the first side wall 11 and the second side wall 13, and the third side wall 15 is provided with a straight edge.
[0039] In this embodiment, the first side wall 11 can be provided with a semi-circular arc structure. By using the third side wall 15 with a straight edge to connect the first side wall 11 and the second side wall 13, a certain direct current space can be formed in the accommodation groove 10 after liquid inlet, so that the electrolytic solution can perform a certain balanced flow rate between the two third side walls 15 and then flow gently towards the first side wall 11, which is beneficial to better improving the uniform distribution of the flow rate of the electrolytic solution in the accommodation groove 10, better reducing the formation of dead zones in the accommodation groove 10 where no electrolytic solution flows, and further improving the electrolysis operation efficiency and reliability of the electrode plate 100.
[0040] Referring toFigure 1 and Figure 3 In an embodiment of the present application, a partition member 531 is provided in the exhaust passage 53, and the partition member 531 divides the exhaust passage 53 into at least two channel units.
[0041] In this embodiment, by providing the partition member 531 in the exhaust passage 53, the partition member 531 can be a baffle, a stopper, etc. protruding in the exhaust passage 53. The partition member 531 can be used to divide the entire exhaust passage 53 into at least two side-by-side channel units. Furthermore, the gas generated in the accommodation groove 10 can be exhausted evenly through the at least two channel units, which is beneficial to using the multiple channel units to better increase the overall exhaust efficiency of the electrode plate 100. At the same time, the channel units with a smaller width can be used to achieve centralized exhaust of the gas, reducing the chance of gas flow disorder when flowing through the exhaust passage 53 with a larger width, and reducing the gas flow rate and pressure to a certain extent, better ensuring the high-pressure exhaust effect of the electrolysis device, and further improving the practicability and reliability of the electrode plate 100.
[0042] Among them, the electrode plate 100 can be provided with a corresponding number of partition members 531 according to the gas production and exhaust volume requirements, so that the electrode plate 100 can be stably divided into n + 1 side-by-side channel units under the action of n partition members 531, where n is an integer. This is beneficial to enabling the electrode plate 100 to better meet the user's usage requirements and better ensure the stable operation of the electrolysis device.
[0043] Refer to Figure 1 and Figure 3 In an embodiment of the present application, a plurality of flow guiding structures 31 are provided on the plate surface of the main electrode plate 30, and the plurality of flow guiding structures 31 are arranged in an array.
[0044] In this embodiment, a plurality of flow guiding structures 31 can be protrudingly provided on the plate surface of the main electrode plate 30 of the electrode plate 100, so that the plurality of flow guiding structures 31 can be arranged on the bottom wall of the accommodation groove 10 at intervals in an array. The material of the flow guiding structure 31 can be the same as that of the main electrode plate 30, so that when the electrode plate 100 is energized, the flow guiding structure 31 can be used to increase the conductive area of the electrode plate 100. At the same time, the plurality of flow guiding structures 31 can be used to fully contact the electrolytic solution in the accommodation groove 10, effectively increasing the contact area between the electrolytic solution and the electrode plate 100. Furthermore, under the action of the flow guiding structure 31, the sites of the electrolytic reaction of the electrolytic solution can be better increased, so that the electrolytic solution can achieve a more sufficient electrolytic reaction in the accommodation groove 10, which is beneficial to better improving the electrolysis efficiency of the electrolytic solution, and then increasing the rate of hydrogen or oxygen generation of the electrode plate 100, and further improving the practicability and reliability of the electrode plate 100.
[0045] In addition, the flow guiding structure 31 can increase the area where the electrolytic solution undergoes the electrolysis reaction, which is beneficial to avoiding the slow electrolysis reaction of the part of the electrolytic solution that does not contact the inner wall of the accommodating tank 10, enabling better electrolysis operations to be achieved throughout the accommodating tank 10 and better improving the overall electrolysis reaction efficiency in the accommodating tank 10. Moreover, under the action of the convex flow guiding structure 31, the flow guiding structure 31 can also play a certain role in blocking and bursting the bubbles formed by the airflow staying in the electrolytic solution, which is beneficial to better reducing the bubbles in the accommodating tank 10, enabling the electrode plate 100 to achieve a more stable and reliable exhaust effect, and further improving the practicability and reliability of the electrode plate 100.
[0046] In the embodiment of the present application, the flow guiding structure 31 and the main electrode plate 30 are of an integrally formed structure.
[0047] In this embodiment, the flow guiding structure 31 can be integrally formed with the main electrode plate 30 by stamping technology, or the flow guiding structure 31 can be integrally formed with the main electrode plate 30 by 3D printing technology, or the flow guiding structure 31 can be integrally formed on the plate surface of the main electrode plate 30 by integral casting technology, which is beneficial to better improving the processing convenience and overall structural strength of the electrode plate 100.
[0048] In addition, referring to Figure 1 and Figure 3 , in the embodiment of the present application, the flow guiding structure 31 is one or more of a hemispherical papilla, a frustum-shaped papilla, a pyramid-shaped papilla, or a prism-shaped papilla.
[0049] In this embodiment, the flow guiding structure 31 can be a papilla structure protruding on the plate surface of the main electrode plate 30 and having a certain concave space on the reverse side. When the accommodating tanks 10 are formed on the two opposite plate surfaces of the main electrode plate 30 respectively, the flow guiding structure 31 can be arranged in an array with concave and convex shapes in turn on the two opposite plate surfaces of the main electrode plate 30, which is beneficial to forming a larger number of flow guiding structures 31 in a limited area, enabling the flow guiding structure 31 to better contact the electrolytic solution fully, and further improving the working efficiency and practicability of the electrode plate 100. Among them, the multiple flow guiding structures 31 on the main electrode plate 30 can adopt one of the single-shaped hemispherical papilla, frustum-shaped papilla, pyramid-shaped papilla, or prism-shaped papilla, or the flow guiding structure 31 can be arranged in a combined pattern of multiple shapes of hemispherical papilla, frustum-shaped papilla, pyramid-shaped papilla, or prism-shaped papilla, better ensuring the electrolytic gas production efficiency of the electrode plate 100 and further improving the practicability and reliability of the electrode plate 100.
[0050] Referring to Figures 1 to 3, in an embodiment of the present application, the main electrode plate 30 has a first plate surface and a second plate surface facing each other. The electrode frame 50 and the first plate surface enclose a containing groove 10, and the electrode frame 50 and the second plate surface enclose another containing groove 10. The two containing grooves 10 are independent of each other. The electrode frame 50 has a first end face and a second end face facing each other. An exhaust passage 53 and a liquid inlet passage 51 are provided on both the first end face and the second end face. The electrode frame 50 is further provided with a first air outlet hole 57 and a second air outlet hole 59. The exhaust passage 53 on the first end face is communicated with the first air outlet hole 57, and the exhaust passage 53 on the second end face is communicated with the second air outlet hole 59.
[0051] In this embodiment, the periphery of the main electrode plate 30 can be connected and fixed at the central area of the inner wall of the electrode frame 50, so that the distance between the first plate surface of the main electrode plate 30 and the first end face of the electrode frame 50 is the same as the distance between the second plate surface of the main electrode plate 30 and the second end face of the electrode frame 50. Furthermore, a part of the inner wall of the electrode frame 50 and the first plate surface can enclose a containing groove 10, and another part of the inner wall of the electrode frame 50 and the second plate surface can enclose another containing groove 10. Thus, an independent containing groove 10 can be formed on each of the opposite sides of an electrode plate 100, enabling the electrode plate 100 to be configured as a bipolar plate. In this way, when the electrode plates 100 are arranged and installed in the electrolytic cell, multiple electrode plates 100 in the form of the bipolar plate structure can be arranged and stacked in sequence, so that the containing grooves 10 on both sides of the multiple electrode plates 100 can be more conveniently closed to form multiple electrolytic chambers. This is conducive to electrolyzing to generate hydrogen and oxygen respectively in the two independent containing grooves 10 of the electrode plate 100 by adjusting the current direction of the electrode, ensuring that the operations of preparing hydrogen and preparing oxygen can be simultaneously performed on one electrode plate 100, and further improving the practicability and reliability of the electrode plate 100.
[0052] At this time, by providing liquid inlet channels 51 on both the first end face and the second end face of the pole frame 50, when the electrolytic solution is input into the electrode plate 100, it can flow into the accommodating grooves 10 on both sides of the two electrode plates 100 respectively through the liquid inlet channels 51 on the first end face and the second end face for electrolysis operation, ensuring the stable delivery of the electrolytic solution in the two accommodating grooves 10. The two accommodating grooves 10 in the same electrode plate 100 can be provided with the same shape structure, that is, both are provided with a structure similar to a semi-circle. At the same time, at least two liquid inlets can be provided on the second side wall 13 of each accommodating groove 10, so that the overall flow rate of the electrolytic solution injected into each accommodating groove 10 is kept consistent, reducing the dead zone in the accommodating groove 10, so that the electrolytic solution can flow better and evenly fill the accommodating groove 10, further improving the overall electrolytic gas production efficiency of the electrode plate 100. And by providing independent first air outlet holes 57 and second air outlet holes 59 on the pole frame 50, the first air outlet holes 57 can be communicated with the exhaust channel 53 on the first end face, and the second air outlet holes 59 can be communicated with the exhaust channel 53 on the second end face, so that the produced hydrogen and oxygen can be independently discharged and collected from the first air outlet holes 57 and the second air outlet holes 59 respectively, effectively avoiding the mixing of the gases generated by the electrolysis device, ensuring the stable and reliable operation of the electrolysis device, and further improving the practicability and reliability of the electrode plate 100.
[0053] The present application also proposes an electrolysis device, which includes a device body and an electrode plate 100. The specific structure of the electrode plate 100 refers to the above embodiments. Since this electrolysis device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.
[0054] The present application also proposes an electrolytic hydrogen and oxygen production system, which includes an electrolysis device and a purification device. The specific structure of the electrolysis device refers to the above embodiments. Since this electrolytic hydrogen and oxygen production system adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.
[0055] The above description is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made under the technical concept of the present application by using the content of the specification and drawings of the present application, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present application.
Claims
1. An electrode plate, characterized in that, Comprising: Main electrode plate; An electrode frame that surrounds and connects to the main electrode plate and encloses a receiving groove with the main electrode plate. The receiving groove has opposite first side walls and second side walls. The first side walls are arc-shaped, and the second side walls are straight or arc-shaped protruding towards the first side walls; The electrode frame is provided with an exhaust passage and a liquid inlet flow passage. The first side wall is provided with an exhaust port communicating with the exhaust passage, and the second side wall is provided with a liquid inlet port communicating with the liquid inlet flow passage.
2. The electrode plate according to claim 1, characterized in that, The receiving groove further has two opposite third side walls that connect the first side walls and the second side walls. The third side walls are straight.
3. The electrode plate according to claim 1, characterized in that, The second side wall is provided with at least two liquid inlet ports, and at least two liquid inlet ports respectively communicate with the liquid inlet flow passage.
4. The electrode plate according to claim 3, wherein The electrode frame is provided with at least two liquid inlet flow passages, and one liquid inlet port communicates with one liquid inlet flow passage.
5. The electrode plate according to claim 1, wherein A partition member is provided in the exhaust passage, and the partition member divides the exhaust passage into at least two channel units.
6. The electrode plate according to claim 1, characterized in that, A plurality of flow guiding structures are provided on the plate surface of the main electrode plate, and the plurality of flow guiding structures are arranged in an array.
7. The electrode plate according to claim 6, characterized in that The flow guiding structure and the main electrode plate are of an integrally formed structure.
8. The electrode plate according to claim 6, characterized in that, The flow guiding structure is one or more of a hemispherical papilla, a frustum-shaped papilla, a pyramid-shaped papilla, or a prism-shaped papilla.
9. The electrode plate according to claim 6, characterized in that, The main electrode plate has a first plate surface and a second plate surface facing away from each other. The electrode frame and the first plate surface enclose a receiving groove, and the electrode frame and the second plate surface enclose another receiving groove. The two receiving grooves are independent of each other; The electrode frame has a first end face and a second end face facing away from each other. The first end face and the second end face are both provided with the exhaust passage and the liquid inlet flow passage. The electrode frame is further provided with a first air outlet hole and a second air outlet hole. The exhaust passage on the first end face communicates with the first air outlet hole, and the exhaust passage on the second end face communicates with the second air outlet hole.
10. An electrolysis device, characterized in that, The electrolysis device includes a device body and an electrode plate. The electrode plate is any one of the electrode plates in claims 1 to 9, and the electrode plate is installed on the device body.
11. An electrolytic hydrogen and oxygen production system, characterized in that, The electrolytic hydrogen and oxygen production system includes an electrolysis device and a purification device. The electrolysis device is the electrolysis device according to claim 10, and the electrolysis device is connected to the purification device through a pipeline.