Polar plate and electrolysis device

Abstract

The utility model provides a polar plate and an electrolysis device, and relates to the technical field of electrolysis. In the polar plate, second supporting parts of the polar frame are arranged on the two sides, in the set horizontal direction, of the first supporting part of the polar frame, and partition plates are connected between the first supporting part and the second supporting parts; the direction from the first supporting part to the second supporting part in the horizontal direction is set, and the position of at least part of the plate section of the partition plate in the vertical direction is gradually raised or gradually lowered; at least one side, in the vertical direction, of the partition plate is a set side, the partition plate is used for forming an electrolysis cavity on the set side, an inlet runner of the electrolysis cavity corresponds to the lower end of the partition plate, and an outlet runner of the electrolysis cavity corresponds to the higher end of the partition plate. The electrolysis chamber can form a plurality of sub-electrolysis spaces in the set horizontal direction, the path length of an electrolysis product discharging path can be reduced, electrolyte in each sub-electrolysis space moves from the low end to the high end, the electrolysis products can be rapidly discharged, and the electrolysis efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolysis, in particular to an electrode plate and an electrolysis device. Background Art

[0002] With the advancement of technology, electrolysis technology has gradually been widely used. Taking the electrolytic hydrogen production device as an example, it is generally composed of several to hundreds of electrolytic chambers connected in series, and each electrolytic chamber is composed of components such as plates, electrodes and diaphragms. Among them, the plate is the supporting component of the electrolytic cell, which plays the role of supporting the electrode and diaphragm and conducting electricity. The electrode is divided into a cathode electrode and an anode electrode, which is the place where hydrogen evolution and oxygen evolution reactions occur. When the electrolytic hydrogen production device is working, a driving component such as a driving pump drives the electrolyte to flow through each electrolytic chamber, and when passing through the electrode, a hydrogen evolution or oxygen evolution reaction occurs in the chamber surrounded by the plate and the diaphragm.

[0003] However, the current electrolysis device generally adopts circular plates, and multiple circular plates are distributed in sequence along the horizontal direction. That is to say, the plate surface of the circular plate is arranged vertically. The inlet flow channel of the electrolysis chamber is arranged at the bottom of the pole frame of the plate, and the outlet flow channel is arranged at the top of the pole frame of the plate. The inlet flow channel and the outlet flow channel can only be arranged in a smaller area of ​​the pole frame, so that the flow field distribution at various places in the electrolysis chamber is relatively uneven, which may cause flow dead zone or trapped gas phenomenon, which is not conducive to the rapid discharge of electrolysis products such as hydrogen or oxygen, and affects the electrolysis efficiency. At the same time, the distance between the inlet flow channel and the outlet flow channel is far, and the exhaust path of the electrolysis products such as hydrogen or oxygen at some positions, such as near the inlet flow channel, is long, which is also not conducive to the rapid discharge of electrolysis products, affecting the electrolysis efficiency. In particular, with the increase of the demand for electrolysis products, the power demand for the electrolysis device is also gradually increased, and there is a trend of large-scale electrolysis devices, and the influence of its longer exhaust path on the electrolysis efficiency is more significant. Utility Model Content

[0004] The utility model aims to solve the problem of how to improve the electrolysis efficiency of the electrolysis device in the related art to a certain extent.

[0005] In order to solve at least one aspect of the above-mentioned problems to at least a certain extent, in the first aspect, the utility model provides a pole plate, comprising a pole frame and a partition; the pole frame comprises a first supporting part and a second supporting part, the first supporting part is provided with the second supporting part on both sides of a set horizontal direction, and the partition is connected between the first supporting part and the second supporting part; in the direction from the first supporting part to the second supporting part in the set horizontal direction, the position of at least part of the plate section of the partition in the up and down direction gradually increases or decreases; at least one side of the partition along the up and down direction is a set side, and the partition is used to form an electrolysis chamber on the set side, the inlet flow channel of the electrolysis chamber is arranged corresponding to the lower end of the partition, and the outlet flow channel of the electrolysis chamber is arranged corresponding to the higher end of the partition.

[0006] Optionally, the projection of the partition in the horizontal plane is an annular structure, the first supporting portion is located at an inner end of the annular structure, and the second supporting portion is located at an outer end of the annular structure.

[0007] Optionally, the annular structure is a circular ring or a polygonal ring.

[0008] Optionally, at least part of the plate segment of the partition includes any one of an inclined surface structure and a curved surface structure.

[0009] Optionally, the projection of the partition in the horizontal plane is a ring-shaped structure;

[0010] The annular structure is in the form of a circular ring, and the at least part of the plate segment of the partition is arranged corresponding to the circumferential side surface of the truncated cone;

[0011] Alternatively, the annular structure is a polygonal ring, the at least part of the plate segments of the partition are arranged corresponding to the circumferential side surfaces of the truncated pyramid, and the number of side surfaces of the truncated pyramid is consistent with the number of edges of the polygonal ring.

[0012] Optionally, in a vertical plane parallel to the set horizontal direction, an angle between a line connecting upper and lower ends of at least part of the plate segment of the partition and the set horizontal direction is 10°-15°.

[0013] Optionally, at least one of the inlet flow channels and / or at least one of the outlet flow channels are formed on the pole frame.

[0014] Optionally, one of the first supporting portion and the second supporting portion corresponding to the lower end of the partition is a first setting portion, and the other is a second setting portion;

[0015] When the inlet flow channel is formed in the pole frame, the inlet flow channel includes at least one first internal communication port and at least one first external communication port that are connected to each other, the first internal communication port is formed on the first side wall of the first setting portion close to the partition and is located on the setting side of the partition, and the inlet flow channel penetrates at least one end surface of the first setting portion in the up-down direction and forms the first external communication port;

[0016] When the outlet flow channel is formed in the pole frame, the outlet flow channel includes at least one second internal connecting port and at least one second external connecting port that are connected to each other. The second internal connecting port is formed on the second side wall of the second setting part close to the partition and is located on the set side of the partition. The outlet flow channel penetrates at least one end surface of the second setting part in the up and down direction and forms the second external connecting port.

[0017] Optionally, the same inlet flow channel corresponds to a plurality of first internal communication ports, and the plurality of first internal communication ports are evenly distributed along the circumference of the partition plate on the first setting portion;

[0018] and / or, the same outlet flow channel corresponds to a plurality of second internal communication ports, and the plurality of second internal communication ports are equidistantly distributed along the circumference of the partition plate on the second set portion;

[0019] And / or, a plurality of the inlet flow channels are evenly distributed on the first setting portion along the circumference of the partition;

[0020] And / or, a plurality of the outlet flow channels are evenly distributed on the second setting portion along the circumference of the partition.

[0021] In a second aspect, the utility model provides an electrolysis device, which further includes a plurality of pole plates distributed up and down, wherein the plurality of pole plates include at least one setting plate, and the setting plate is the pole plate as described in the first aspect above.

[0022] Optionally, the electrolysis device further comprises an electrode, the electrode being located on the setting side of the partition of the setting plate;

[0023] The partition is provided with a spoiler support structure, which is used to support the electrode on the set side through contact; and / or the electrolysis device also includes a spoiler support member, which is arranged between the partition and the electrode, and the partition is supported by the spoiler support member.

[0024] Compared with the related prior art, in the pole plate and the electrolysis device of the utility model, the pole frame is configured to include a first support part and a second support part, the first support part is provided with the second support part on both sides of the set horizontal direction, and the partition is connected between the first support part and the second support part, that is, the pole frame has a second support part, a first support part and another second support part in sequence in the set horizontal direction, such as the left and right direction, and there is a partition between the first support part and the adjacent second support part in the left and right direction, that is, partitions are provided on both sides of the first support part in the left and right direction, and in the direction from the first support part to the second support part in the left and right direction, at least part of the plate segments of the partition gradually rise or gradually fall in the up and down direction, so that in a set vertical section parallel to the set horizontal direction, such as the left and right direction, at least part of the plate segments of the left side partition of the first support part and at least part of the plate segments of the right side partition are generally distributed in, for example, an inverted eight-shaped shape (for example, corresponding to the aforementioned gradually rising scheme, and the partitions on both sides of the first support part The plates are symmetrical in the left-right direction) or are generally distributed in an eight-shaped shape; at the same time, the set side of the partition along the up-down direction is used to form an electrolysis chamber, the inlet flow channel of the electrolysis chamber on the set side is arranged corresponding to the lower end of the partition, and the outlet flow channel of the electrolysis chamber is arranged corresponding to the higher end of the partition, so that the electrolysis chamber is formed with sub-electrolysis spaces on the left and right sides of the first supporting part respectively (the description of the sub-electrolysis space is only for the convenience of understanding, and does not represent the separation to form an actual cavity), and the electrolyte in the sub-electrolysis space moves from the lower end to the higher end, For example, when at least part of the plate segments of the left side partition of the first supporting part and at least part of the plate segments of the right side partition are roughly distributed in an inverted eight shape, that is, the lower end of the partition is connected to the first supporting part and the higher end is connected to the second supporting part, the electrolyte will flow into the electrolysis chamber at the first supporting part through the inlet flow channel, and the electrolyte in the left and right sub-electrolysis spaces will flow to the corresponding second supporting part through the gradually rising parts of the corresponding partitions, and the electrolysis products will flow out of the electrolysis chamber at the second supporting part through the outlet flow channel, so as to facilitate the discharge of electrolysis products such as hydrogen or oxygen.

[0025] In general, the utility model enables the electrolysis chamber to form multiple sub-electrolysis spaces in a set horizontal direction, which can reduce the path length of the electrolysis product discharge path during the electrolysis process. In addition, the electrolyte in each sub-electrolysis space moves from the low end to the high end, which is conducive to the rapid discharge of the electrolysis product, and can improve the electrolysis efficiency and the gas production. On this basis, the space occupation of the electrolysis device can be reduced to a certain extent. The compact design of the electrolysis device is utilized. The utility model can be used for small and large electrolysis devices, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a structural schematic diagram of a first embodiment of the present invention when the electrode plate is a circular bipolar plate;

[0027] Figure 2 for Figure 1 Schematic cross-sectional view at section AA;

[0028] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the corresponding electrode plate;

[0029] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0030] Figure 5 for Figure 1 The exploded structure diagram of the bipolar plate shown is used in an electrolysis device;

[0031] Figure 6 It is a schematic structural diagram of the pole plate when the pole frame includes support bars in the second embodiment of the utility model;

[0032] Figure 7 for Figure 6 Schematic diagram of the cross section at the CC section;

[0033] Figure 8 for Figure 6 Schematic diagram of the cross section at the middle DD section;

[0034] Fig. 9 It is a schematic structural diagram of the electrode plate in the third embodiment of the utility model;

[0035] Fig.10 for Fig. 9 Schematic diagram of the cross section at the middle EE section;

[0036] Fig.11 It is a schematic structural diagram of the electrode plate in the fourth embodiment of the present utility model.

[0037] Description of reference numerals:

[0038] 1-polar plate; 11-polar frame; 111-first supporting part; 112-second supporting part; 11A-first setting part; 11B-second setting part; S1-first side wall; S2-second side wall; 12-partition plate; 121-arc surface structure; 122-slope structure; 13-inlet flow channel; 131-first internal connecting port; 132-first external connecting port; 13A-anode chamber inlet flow channel; 13B-cathode chamber inlet flow channel; 14-outlet flow channel; 141-second internal connecting port; 142-second external connecting port; 14A-anode chamber outlet flow channel; 14B-cathode chamber outlet flow channel; 2-spoiler support; 3-diaphragm; 4-electrode; 4A-anode electrode; 4B-cathode electrode; 5-sealing structure; 51-first sealing part; 52-second sealing part. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0042] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0043] In the accompanying drawings, the Z axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis (that is, the direction of the arrow of the Z axis) represents the up, and the negative direction of the Z axis represents the down; the X axis in the accompanying drawings represents the front and back position, and the positive direction of the X axis (that is, the direction of the arrow of the X axis) represents the front side, and the negative direction of the X axis represents the back side; the Y axis in the accompanying drawings represents the horizontal direction and is designated as the left and right position, and the positive direction of the Y axis (that is, the direction of the arrow of the Y axis) represents the right side, and the negative direction of the Y axis represents the left side; it should be noted that the aforementioned Z axis, Y axis and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0044] like Figures 1 to 11 As shown, an embodiment of the utility model provides a plate 1, which includes a pole frame 11 and a partition 12; the pole frame 11 includes a first support portion 111 and a second support portion 112, the first support portion 111 is provided with a second support portion 112 on both sides of a set horizontal direction, and a partition 12 is connected between the first support portion 111 and the second support portion 112; in the direction from the first support portion 111 to the second support portion 112 in the set horizontal direction, at least part of the plate segments of the partition 12 gradually increase or decrease in the up and down directions; at least one side of the partition 12 along the up and down directions is a set side, and the partition 12 is used to form an electrolysis chamber on the set side, the inlet flow channel 13 of the electrolysis chamber is arranged corresponding to the lower end of the partition 12, and the outlet flow channel 14 of the electrolysis chamber is arranged corresponding to the higher end of the partition 12.

[0045] Specifically, at least one of the upper side and the lower side of the partition 12 along the up and down direction is a set side. When only the lower side is the set side, the lower surface of the partition 12 is used to enclose an electrolysis chamber with other structures such as a bipolar plate. At this time, the electrode plate 1 is an upper end electrode plate. When only the upper side is the set side, the upper surface of the partition 12 is used to enclose an electrolysis chamber with other structures such as a bipolar plate. At this time, the electrode plate 1 can be a lower end electrode plate. When both the upper side and the lower side are the set sides, the upper surface of the partition 12 is used to enclose an electrolysis chamber, and the lower surface of the partition 12 is used to enclose another electrolysis chamber. At this time, the electrode plate 1 can be used as a bipolar plate. In other words, the set side is a side of the partition 12 used to form an electrolysis chamber.

[0046] It should be understood that the inlet flow channel 13 of the electrolysis chamber corresponding to the set side is used to supply electrolyte to the corresponding electrolysis chamber, which can be understood as a flow channel forming the inlet of the electrolysis chamber, and the inlet flow channel 13 is formed with a communication port on the inner wall of the electrolysis chamber, such as the first internal communication port 131 described later, which is the inlet of the electrolysis chamber. The outlet flow channel 14 of the electrolysis chamber corresponding to the set side is used to discharge the electrolysis product from the electrolysis chamber, which can be understood as a flow channel forming the outlet of the electrolysis chamber, and the outlet flow channel 14 is formed with a communication port on the inner wall of the electrolysis chamber, such as the second internal communication port 141 described later, which is the outlet of the electrolysis chamber.

[0047] The inlet flow channel 13 of the electrolysis chamber is arranged corresponding to the lower end of the partition 12, and the outlet flow channel 14 of the electrolysis chamber is arranged corresponding to the higher end of the partition 12, that is, the connecting opening formed on the inner wall of the inlet flow channel 13, such as the first internal connecting opening 131, corresponds to the lower end of the partition 12, and the connecting opening formed on the inner wall of the electrolysis chamber, such as the second internal connecting opening 141, corresponds to the higher end of the partition 12.

[0048] The method of forming the electrolysis chamber on the set side of the electrode plate 1 can adopt relevant technologies, which will be described in conjunction with specific embodiments later in this specification.

[0049] This manual Figures 1 to 11 The description is made by taking the electrode plate 1 as a bipolar electrode plate as an example. In this case, the upper side and the lower side of the separator 12 respectively form electrolytic chambers, for example, the electrolytic chambers on the upper side and the lower side are respectively the cathode chamber and the anode chamber. The inlet flow channels 13 corresponding to the anode chamber and the cathode chamber are respectively the anode chamber inlet flow channel 13A and the cathode chamber inlet flow channel 13B, and the outlet flow channels 14 corresponding to the anode chamber and the cathode chamber are respectively the anode chamber outlet flow channel 14A and the cathode chamber outlet flow channel 14B.

[0050] The pole frame 11 serves as the installation base of the partition 12. When the pole plate is used in an electrolytic device, the pole frame 11 serves as the main supporting base for connecting the pole plate with other components. The pole frame 11 is generally surrounded by an installation cavity for installing the partition 12. The edge of the partition 12 is on the inner wall of the installation cavity (the inner wall of the installation cavity includes, for example, the first side wall S1 and the second side wall S2 described later, refer to Figure 4 ) is connected to the pole frame 11, and the portion of the mounting cavity of the pole frame 11 located on the set side of the partition 12 and the partition 12 are used to form an electrolysis chamber corresponding to the set side.

[0051] The structural form of the pole frame 11 is not limited, and it is sufficient that the first support part 111 is provided with a second support part 112 on both sides of the set horizontal direction. The content of the utility model is explained below by taking the horizontal direction as the left and right direction as an example, but it should be understood that it is not limited to this, and an exemplary explanation will be given in conjunction with the embodiments below.

[0052] Figures 1 to 8 It shows a situation in which, in a setting horizontal direction from the first supporting part 111 to the second supporting part 112, the position of at least part of the plate section of the partition 12 in the vertical direction gradually rises (hereinafter referred to as the first implementation scheme). Specifically, the lower end of the partition 12 in the horizontal direction is set to be connected to the first supporting part 111, and the higher end of the partition 12 in the horizontal direction is set to be connected to the second supporting part 112. The inlet flow channel 13 of the electrolysis chamber is arranged corresponding to the lower end of the upper partition 12, that is, corresponding to the first supporting part 111, and the outlet flow channel 14 of the electrolysis chamber is arranged corresponding to the higher end of the upper partition 12, that is, corresponding to the second supporting part 112. Therefore, when the electrode plate is used in an electrolysis device, the electrolyte flows into the electrolysis chamber on the set side through the inlet flow channel 13 at the first support part 111, and the electrolysis product flows out of the electrolysis chamber on the set side through the outlet flow channel 14 at the second support part 112. In this process, due to the direction from the first support part 111 to the second support part 112, the position of at least part of the plate section of the partition 12 in the up and down direction gradually rises, which is conducive to the rapid discharge of the electrolysis product.

[0053] Fig. 9 and Fig.10 It shows that, in a set horizontal direction from the first supporting part 111 to the second supporting part 112, the position of at least part of the plate section of the partition 12 in the up and down direction gradually decreases. Specifically, the lower end of the partition 12 in the horizontal direction is set to be connected to the second supporting part 112, and the higher end of the partition 12 in the horizontal direction is set to be connected to the first supporting part 111. The inlet flow channel 13 of the electrolysis chamber is arranged corresponding to the lower end of the upper partition 12, that is, corresponding to the second supporting part 112, and the outlet flow channel 14 of the electrolysis chamber is arranged corresponding to the higher end of the upper partition 12, that is, corresponding to the first supporting part 111. Therefore, when the electrode plate is used in an electrolysis device, the electrolyte flows into the electrolysis chamber on the set side through the inlet flow channel 13 at the second support part 112, and the electrolysis product flows out of the electrolysis chamber on the set side through the outlet flow channel 14 at the first support part 111. In this process, due to the direction from the second support part 112 to the first support part 111, the position of at least part of the plate section of the partition 12 in the up and down direction gradually rises, which is conducive to the rapid discharge of the electrolysis product.

[0054] In this way, the pole frame 11 is configured to include a first support portion 111 and a second support portion 112, the first support portion 111 is provided with the second support portion 112 on both sides of the set horizontal direction, and the first support portion 111 and the second support portion 112 are connected with a partition 12, that is, the pole frame 11 has a second support portion 112, a first support portion 111 and another second support portion 112 in the set horizontal direction, for example, in the left and right directions, and there is a partition 12 between the first support portion 111 and the adjacent second support portion 112 in the left and right directions, that is, the left and right directions The first support portion 111 is provided with a partition plate 12 on both sides, and in the left-right direction from the first support portion 111 to the second support portion 112, at least part of the plate segments of the partition plate 12 are gradually raised or lowered in the up-down direction, so that in a set vertical cross section parallel to a set horizontal direction, such as the left-right direction, at least part of the plate segments of the left partition plate 12 of the first support portion 111 and at least part of the plate segments of the right partition plate 12 are generally distributed in, for example, an inverted figure eight shape (for example, corresponding to the aforementioned gradually rising scheme, and the partition plates 12 on the left and right sides of the first support portion 111 are symmetrical in the left-right direction, for details, refer to Figure 7 and Figure 8 ) or roughly in the shape of a figure eight (corresponding to the above-mentioned gradually decreasing scheme, refer to Fig. 9 and Fig.10); at the same time, the set side of the partition 12 along the up-down direction is used to form an electrolysis chamber, the inlet flow channel 13 of the electrolysis chamber on the set side is set corresponding to the lower end of the partition 12, and the outlet flow channel 14 of the electrolysis chamber is set corresponding to the higher end of the partition 12, so that the electrolysis chamber is formed with sub-electrolysis spaces on the left and right sides of the first support part 111 respectively (the description of the sub-electrolysis space is only for the convenience of understanding, and does not represent the separation to form an actual cavity), and the electrolyte in the sub-electrolysis space moves from the lower end to the higher end. For example, when at least part of the partition 12 on the left side of the first support part 111 is When the partition plate segment and at least part of the plate segment of the right partition 12 are roughly distributed in an inverted eight shape, that is, the lower end of the partition 12 is connected to the first support part 111 and the higher end is connected to the second support part 112, the electrolyte will flow into the electrolysis chamber at the first support part 111 through the inlet flow channel 13, and the electrolyte in the left and right sub-electrolysis spaces will flow to the corresponding second support part 112 through the gradually rising parts of the corresponding partition 12, and the electrolysis product will flow out of the electrolysis chamber at the second support part 112 through the outlet flow channel 14, so as to facilitate the discharge of the electrolysis products such as hydrogen or oxygen. In general, the utility model enables the electrolysis chamber to form multiple sub-electrolysis spaces in a set horizontal direction, which can reduce the path length of the electrolysis product discharge path during the electrolysis process. In addition, the electrolyte in each sub-electrolysis space moves from the low end to the high end, which is conducive to the rapid discharge of the electrolysis product, and can improve the electrolysis efficiency and the gas production. On this basis, the space occupation of the electrolysis device can be reduced to a certain extent. The compact design of the electrolysis device is utilized. The utility model can be used for small and large electrolysis devices, which will not be described in detail here.

[0055] like Figures 6 to 8 As shown, optionally, the pole frame 11 includes an outer frame and a support bar, the outer frame encloses a cavity, the support bar is located in the cavity, the support bar extends along the front-to-back direction, and the two ends of the support bar are connected to the inner wall of the outer frame along the front-to-back direction. At this time, in the left-right direction and the above-mentioned set water direction, the support bar is used to form the first support part 111, and the two opposite parts of the outer frame along the left-right direction are used to form the second support part 112. It should be understood that Figures 6 to 8 Only one support bar is shown, in which case the electrolysis chamber on the set side includes two sub-electrolysis spaces. However, it should be understood that the support bars can also be arranged in multiple intervals in the left and right directions, in which case the sub-electrolysis spaces will not be limited to two.

[0056] like Figures 1 to 5 As shown, optionally, the projection of the partition 12 in the horizontal plane is an annular structure, the first supporting portion 111 is located at the inner end of the annular structure, and the second supporting portion 112 is located at the outer end of the annular structure.

[0057] Different from the above-mentioned solution of "the pole frame 11 includes an outer frame and support bars", at this time, the outer frame is located on the outside of the first support part 111 and is spaced apart from the first support part 111. In this case, setting the horizontal direction can include any direction in the horizontal plane, that is, the two parts of the outer frame opposite to each other in any horizontal direction can constitute the second support part 112.

[0058] When the electrode plate 1 is used in an electrolysis device, the first supporting portion 111 fixes and supports the inner end of the partition 12, and the second supporting portion 112 fixes and supports the outer end of the partition 12. When the electrode plate is a bipolar plate, the space surrounded by the lower surface of the partition 12, the bottom surface of the first supporting portion 111 and the bottom surface of the second supporting portion 112 is used to form an electrolysis chamber on the lower side of the partition 12, and the space surrounded by the upper surface of the partition 12, the top surface of the first supporting portion 111 and the top surface of the second supporting portion 112 is used to form an electrolysis chamber on the upper side of the partition 12.

[0059] The projection of the partition 12 in the horizontal plane is an annular structure, which means that the projection of the inner end of the partition 12 in the horizontal plane and the projection of the outer end of the partition 12 in the horizontal plane together form an annular structure. The width of the annular structure at all places in the circumference is not limited.

[0060] In this way, the electrolysis chambers on the set side of the separator 12 can be distributed along the circumference of the first supporting portion 111, thereby increasing the space occupancy rate of the electrolysis chambers in the electrode plate and further improving the electrolysis efficiency.

[0061] Furthermore, the annular structure is a circular ring or a polygonal ring.

[0062] like Figures 1 to 5 As shown, it shows the case where the annular structure is a circular ring, in which case the outer frame is also circular. When the annular structure is a polygonal ring, the outer frame is also a polygonal structure.

[0063] In this way, the shapes of the partition 12 and the outer frame are relatively regular, which facilitates structural forming.

[0064] In the above embodiment, optionally, at least part of the plate section of the partition plate 12 includes an inclined surface structure 122 (refer to Figures 6 to 8 ) and curved surface structure 121 (reference Figures 1 to 5 )

[0065] In this way, the inclined surface structure 122 or the curved surface structure 121 is easy to manufacture and can achieve a better guiding effect on the electrolyte.

[0066] Furthermore, when the annular structure is a circular ring, at least part of the plate segment of the partition 12 is arranged corresponding to the circumferential side surface of the frustum.

[0067] At this time, the arc surface structure 121 corresponds to the circumferential side surface of the truncated cone. If the axial direction of the truncated cone is set vertically, at this time, the outer circle and the inner circle of the circular ring corresponding to the partition 12 are both located on the circumferential side surface of the truncated cone. Here, the truncated cone is a virtual structure. For example, if the partition 12 is made of a smooth flat plate, the space surrounded by the formed partition 12 is filled to obtain the above-mentioned truncated cone. In this way, the processing and forming of the partition 12 is facilitated.

[0068] Furthermore, when the annular structure is a polygonal ring, at least part of the plate segments of the partition 12 are arranged corresponding to the circumferential side surfaces of the truncated pyramid, and the number of the side surfaces of the truncated pyramid is consistent with the number of the edges of the polygonal ring.

[0069] At this time, if the partition 12 is made of a smooth flat plate, the above-mentioned truncated pyramid is obtained after the space surrounded by the partition 12 after molding is filled, which is also convenient for the processing and molding of the partition 12.

[0070] Optionally, in a vertical plane parallel to the set horizontal direction, an angle between a line connecting upper and lower ends of at least part of the plate segments of the partition 12 and the set horizontal direction is 10°-15°.

[0071] When the partition 12 includes the inclined surface structure 122, the angle between the inclined surface structure 122 and the set horizontal direction is the above angle, that is, the angle is 10°-15°, for example, the angle is 12°-14°. In this way, it can be avoided that the angle is too large, which affects the utilization rate of the installation space of the electrolysis device when the plate is used in the electrolysis device, and it can also ensure that the electrolyte flows upward as a whole, meeting the demand for improving the electrolysis efficiency.

[0072] like Figures 1 to 11 As shown, in the above embodiment, optionally, at least one inlet flow channel 13 and / or at least one outlet flow channel 14 are formed on the pole frame 11 .

[0073] Specifically, one of the first supporting portion 111 and the second supporting portion 112 corresponding to the lower end of the partition 12 is defined as the first setting portion 11A, and the other is defined as the second setting portion 11B. The inlet flow channel 13 and the outlet flow channel 14 are described below by taking the first supporting portion 111 as the first setting portion 11A and the second supporting portion 112 as the second setting portion 11B as an example.

[0074] The inlet flow channel 13 can be formed in the first setting part 11A, and the inlet flow channel 13 generally includes at least one first internal connecting port 131 and at least one first external connecting port 132 that are connected to each other. The first internal connecting port 131 is formed on the first side wall S1 of the first setting part 11A close to the partition 12 and is located on the setting side of the partition 12. The first external connecting port 132 is formed at a position outside the first side wall S1 on the first setting part 11A.

[0075] The outlet flow channel 14 can be formed in the second setting part 11B, and the outlet flow channel 14 generally includes at least one second internal connecting port 141 and at least one second external connecting port 142 that are connected to each other. The second internal connecting port 141 is formed on the second side wall S2 of the second setting part 11B close to the partition 12 and is located on the setting side of the partition 12. The second external connecting port 142 is formed at a position outside the second side wall S2 on the second setting part 11B.

[0076] In this way, the pole frame 11 can be used to form the inlet flow channel 13 or the outlet flow channel 14 of the electrolysis chamber, which facilitates the structural arrangement of the inlet flow channel 13 and the outlet flow channel 14 .

[0077] Furthermore, the inlet flow channel 13 penetrates through at least one end surface of the first setting portion 11A in the up-down direction and forms a first external communication port 132 .

[0078] For example, the inlet flow channel 13 passes through the two end surfaces of the first setting part 11A in the up and down directions to form two upper and lower first external connecting ports 132. At this time, the portion between the upper and lower first external connecting ports 132 can be used to form a main liquid inlet channel for supplying electrolyte to each electrolytic chamber.

[0079] Furthermore, the outlet flow channel 14 penetrates at least one end surface of the second setting portion 11B in the up-down direction and forms a second external communication port 142 .

[0080] For example, the outlet flow channel 14 passes through the two end surfaces of the second setting portion 11B in the vertical direction and forms two upper and lower second external communication ports 142. At this time, the portion between the upper and lower second external communication ports 142 can be used to form the main exhaust channel for the electrolysis product of the electrolysis chamber. Here, the outlet flow channels 14 corresponding to the anode chamber and the cathode chamber are usually not connected to each other, that is, the outlet flow channel 14A of the anode chamber and the outlet flow channel 14B of the cathode chamber are not connected to each other (refer to Figures 1 to 8 ), to avoid cross-gas between hydrogen and oxygen. The corresponding inlet flow channels 13 of the anode chamber and the cathode chamber may not be connected to each other (refer to Figures 6 to 8 , Figures 6 to 8 ), of course, it can also be designed as a shared liquid inlet channel (reference Figures 1 to 5 ).

[0081] like Figure 1 and Fig. 9 As shown, further, the same inlet flow channel 13 corresponds to a plurality of first internal communication openings 131 , and the plurality of first internal communication openings 131 are sequentially distributed along the circumferential direction of the partition plate 12 at the first setting portion 11A.

[0082] Exemplarily, a plurality of first internal connecting ports 131 are equidistantly distributed on the first setting portion 11A, and the plurality of first internal connecting ports 131 extend along the circumference of the partition 12 in the direction of the equidistant distribution of the first setting portion 11A, where the circumference of the partition 12 refers to the circumference of the connection between it and the first setting portion 11A.

[0083] As a result, the electrolyte flowing into the electrolytic chamber at the inlet flow channel 13 is more uniform, and the influence of the inlet flow channel 13 on the supporting performance of the pole frame 11 in the first setting part 11A can be reduced.

[0084] like Fig.11 As shown, further, the same outlet flow channel 14 corresponds to a plurality of second internal communication ports 141 , and the plurality of second internal communication ports 141 are sequentially distributed along the circumference of the partition plate 12 at the second set portion 11B.

[0085] Similarly, a plurality of second internal communication ports 141 are equidistantly arranged on the second setting portion 11B, and the plurality of second internal communication ports 141 extend along the circumference of the partition 12 in the direction of equidistant distribution of the second setting portion 11B. Here, the circumference of the partition 12 refers to the circumference of the connection between the partition 12 and the second setting portion 11B.

[0086] Therefore, the outlet flow channel 14 can cover a larger area in the electrolysis chamber, which is beneficial to the discharge of gas produced in the electrolysis chamber, and can also reduce the impact of the outlet flow channel 14 on the supporting performance of the pole frame 11 in the second set part 11B.

[0087] like Figure 6 As shown, further, a plurality of inlet flow channels 13 are evenly distributed along the circumference of the partition plate 12 on the first setting portion 11A.

[0088] Specifically, the plurality of inlet flow channels 13 are distributed in the first setting portion 11A, for example, equidistantly distributed in the first setting portion 11A, and the plurality of inlet flow channels 13 are distributed in the first setting portion 11A, for example, equidistantly distributed, in a direction extending along the circumference of the partition 12. Here, the circumference of the partition 12 refers to the circumference of the portion where it is connected to the first setting portion 11A.

[0089] Thus, a larger area of ​​the electrolysis chamber can be covered by the multiple inlet flow channels 13, so that the electrolyte can flow into the electrolysis chamber quickly.

[0090] like Figure 1 As shown, further, a plurality of outlet flow channels 14 are evenly distributed along the circumference of the partition plate 12 on the second setting portion 11B.

[0091] Specifically, the plurality of outlet channels 14 are distributed in the second setting portion 11B, for example, equidistantly distributed in the second setting portion 11B, and the distribution direction of the plurality of outlet channels 14 in the second setting portion 11B extends along the circumference of the partition 12. Here, the circumference of the partition 12 refers to the circumference of the connection between the partition 12 and the second setting portion 11B.

[0092] Thus, a large area of ​​the electrolysis chamber can be covered by the multiple outlet flow channels 14, so that electrolysis products such as hydrogen or oxygen can be quickly discharged from the electrolysis chamber.

[0093] The second aspect of the present invention provides an electrolysis device, which further includes a plurality of pole plates distributed up and down, wherein the plurality of pole plates include at least one setting plate, and the setting plate is the pole plate 1 of the first aspect of the above-mentioned embodiment.

[0094] Specifically, all the electrode plates sequentially distributed along the up-down direction generally include an upper electrode plate, a lower electrode plate, and a plurality of bipolar plates located between the upper electrode plate and the lower electrode plate.

[0095] When the upper electrode plate is a setting plate, the lower side of the partition 12 of the electrode plate 1 in the embodiment of the first aspect is used to form an electrolysis chamber, and the electrode plate 1 is used as the upper electrode plate.

[0096] When the lower electrode plate is a setting plate, the upper side of the separator 12 of the electrode plate 1 in the implementation of the first aspect is used to form an electrolysis chamber, and the electrode plate 1 is used as the lower electrode plate.

[0097] When the bipolar plate is a set plate, the upper side and the lower side of the separator 12 of the electrode plate 1 in the implementation of the first aspect are respectively used to form an electrolysis chamber, and the electrode plate 1 is used as a bipolar plate.

[0098] like Figure 5 As shown, the electrolysis device provided by the embodiment of the second aspect has the beneficial effects of the electrode plate 1 provided by the embodiment of the first aspect, which will not be described in detail here.

[0099] Optionally, the electrolysis device further comprises an electrode 4 , which is located on a set side of the separator 12 of the electrode plate 1 .

[0100] like Figure 5As shown, taking the electrolysis device as a bipolar plate electrolysis device as an example, the electrolysis device also includes a diaphragm 3 and a sealing structure 5. The diaphragm 3 is arranged between the two bipolar plates, and the diaphragm 3 separates the space surrounded by the two bipolar plates into an anode chamber and a cathode chamber. The electrode 4 includes an anode electrode 4A and a cathode electrode 4B. The anode chamber is provided with the anode electrode 4A, and the cathode chamber is provided with the cathode electrode 4B. The sealing structure 5 is used to achieve the sealing between the pole frames 11 of the bipolar plates. For example, the sealing structure 5 includes a first sealing portion 51 and a second sealing portion 52. The first sealing portion 51 is arranged corresponding to the first support portion 111, and the second sealing portion 52 is arranged corresponding to the second support portion 112.

[0101] The lower side of the bipolar plate located at the top needs to directly or indirectly support the adjacent electrode 4, such as the cathode electrode 4B, and the upper side of the bipolar plate located at the bottom needs to directly or indirectly support the adjacent electrode 4, such as the anode electrode 4A.

[0102] like Figure 5 As shown, optionally, the partition 12 is provided with a spoiler support structure (not shown in the figure), which is used to support the electrode 4 on the set side through contact, and / or the electrolysis device also includes a spoiler support 2, which is arranged between the partition 12 and the electrode 4, and the partition 12 is supported by the spoiler support 2.

[0103] Take the support of the anode electrode 4A by the bipolar plate located below as an example. The separator 12 is provided with a spoiler support structure such as a concave-convex structure, especially a convex part of a nipple structure to support the anode electrode 4A (in this case, it should be understood that the "at least part of the plate segments of the separator 12 gradually increase or decrease in the up and down directions" described in the embodiment of the first aspect above can be understood as ignoring the concave-convex part of the separator 12). The spoiler support 2 may include a support mesh or a nipple plate, etc., and the spoiler support 2 may be fixed to the separator 12 and / or the pole frame 11 by welding or other connection methods.

[0104] It should be understood that, while the separator 12 supports the electrode 4, it can also have a spoiler support structure, which can adopt relevant technologies and will not be described in detail here.

[0105] Illustratively, in the above embodiment, the pole frame 11 and the partition 12 are both made of carbon steel material, and the surface is nickel-plated, the pole frame 11 and the partition 12 are welded and connected as a whole, the electrode 4 can be a nickel mesh, and the catalytic component is sprayed on the surface, which can adopt relevant technology and will not be described in detail here.

[0106] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A plate, characterized in that: The invention comprises a pole frame (11) and a partition (12); the pole frame (11) comprises a first supporting part (111) and a second supporting part (112); the first supporting part (111) is provided with the second supporting part (112) on both sides of a set horizontal direction; the partition (12) is connected between the first supporting part (111) and the second supporting part (112); in the direction from the first supporting part (111) to the second supporting part (112) in the set horizontal direction, at least part of the plate sections of the partition (12) are gradually raised or lowered in the vertical direction; at least one side of the partition (12) along the vertical direction is a set side, and the partition (12) is used to form an electrolysis chamber on the set side; the inlet flow channel (13) of the electrolysis chamber is arranged corresponding to the lower end of the partition (12), and the outlet flow channel (14) of the electrolysis chamber is arranged corresponding to the higher end of the partition (12).

2. The electrode plate according to claim 1, characterized in that: The projection of the partition (12) in the horizontal plane is an annular structure, the first supporting portion (111) is located at the inner end of the annular structure, and the second supporting portion (112) is located at the outer end of the annular structure.

3. The electrode plate according to claim 2, characterized in that: The annular structure is in the form of a circular ring or a polygonal ring.

4. The electrode plate according to claim 1, characterized in that: The at least part of the plate section of the partition plate (12) comprises any one of an inclined surface structure (122) and a curved surface structure (121).

5. The electrode plate according to claim 4, characterized in that: The projection of the partition (12) in the horizontal plane is an annular structure; The annular structure is in the form of a circular ring, and at least part of the plate segment of the partition plate (12) is arranged corresponding to the circumferential side surface of the truncated cone; Alternatively, the annular structure is a polygonal ring, the at least part of the plate segments of the partition (12) are arranged corresponding to the circumferential side surfaces of the truncated pyramid, and the number of side surfaces of the truncated pyramid is consistent with the number of edges of the polygonal ring.

6. The electrode plate according to claim 4, characterized in that: In a vertical plane parallel to the set horizontal direction, the angle between the connecting line of the upper and lower ends of the at least part of the plate section of the partition (12) and the set horizontal direction is 10°-15°.

7. The electrode plate according to any one of claims 1 to 6, characterized in that: At least one inlet flow channel (13) and / or at least one outlet flow channel (14) is formed on the pole frame (11).

8. The electrode plate according to claim 7, characterized in that: One of the first supporting portion (111) and the second supporting portion (112) which is arranged corresponding to the lower end of the partition (12) is a first setting portion (11A), and the other is a second setting portion (11B); When the inlet flow channel (13) is formed in the pole frame (11), the inlet flow channel (13) comprises at least one first internal communication port (131) and at least one first external communication port (132) which are connected to each other, the first internal communication port (131) being formed on a first side wall (S1) of the first setting portion (11A) close to the partition (12) and located on the setting side of the partition (12), and the inlet flow channel (13) passes through at least one end surface of the first setting portion (11A) in the up-down direction and forms the first external communication port (132); When the outlet flow channel (14) is formed on the pole frame (11), the outlet flow channel (14) includes at least one second internal connecting port (141) and at least one second external connecting port (142) that are connected to each other. The second internal connecting port (141) is formed on the second side wall (S2) of the second setting part (11B) close to the partition (12) and is located on the setting side of the partition (12). The outlet flow channel (14) passes through at least one end face of the second setting part (11B) in the up and down direction and forms the second external connecting port (142).

9. The electrode plate according to claim 8, characterized in that: There are a plurality of first internal communication ports (131) corresponding to the same inlet flow channel (13), and the plurality of first internal communication ports (131) are evenly distributed along the circumference of the partition plate (12) on the first setting portion (11A); and / or, the same outlet flow channel (14) corresponds to a plurality of second internal communication ports (141), and the plurality of second internal communication ports (141) are equidistantly distributed along the circumference of the partition plate (12) on the second setting portion (11B); And / or, a plurality of the inlet flow channels (13) are equidistantly distributed on the first setting portion (11A) along the circumference of the partition (12); And / or, a plurality of the outlet flow channels (14) are equidistantly distributed on the second setting portion (11B) along the circumference of the partition plate (12).

10. An electrolysis device, characterized in that: The electrolysis device further comprises a plurality of pole plates distributed vertically, wherein the plurality of pole plates comprises at least one setting plate, and the setting plate is the pole plate as claimed in any one of claims 1 to 9.

11. The electrolysis device according to claim 10, characterized in that The electrolysis device further comprises an electrode (4), wherein the electrode (4) is located on the setting side of the partition (12) of the setting plate; The partition (12) is provided with a spoiler support structure, and the spoiler support structure is used to support the electrode (4) on the set side through contact; and / or the electrolysis device also includes a spoiler support member (2), and the spoiler support member (2) is arranged between the partition (12) and the electrode (4), and the partition (12) supports the partition (12) through the spoiler support member (2).

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