An electrolytic cell and an electrolytic cell plate

Abstract

The utility model discloses an electrolytic bath pole plate and electrolytic bath, including pole frame, the inside of pole frame is equipped with main pole plate, the main pole plate includes a plurality of pole plate subarea, a plurality of pole plate subarea are in turn set up or surround the inside of pole frame and set up, a plurality of pole plate subarea are any two or three of papillary process subarea, elastic net subarea or board net subarea, wherein, the papillary process subarea is papillary process board, the elastic net subarea includes elastic net, and the board net subarea includes board net. The utility model will combine the advantages of papillary process board and board net and / or elastic net, has the advantages of high efficiency, reliable and long life.

Description

Technical Field

[0001] This utility model relates to the field of electrolysis technology, and in particular to an electrolytic cell electrode plate and an electrolytic cell. Background Technology

[0002] Under my country's "3060" and "Chemical Peaking and Carbon Neutrality" goals, the water electrolysis hydrogen production industry has developed rapidly. Electrolyzers are the core equipment in water electrolysis hydrogen production, widely used and significantly impacting the performance, lifespan, and cost of water electrolysis hydrogen production systems. Electrolyzer electrodes are core components, playing a crucial role in the performance, cost, and lifespan of the electrolyzer. Therefore, developing reasonable and reliable electrolyzer electrodes and electrolyzers is of paramount importance.

[0003] Existing electrolytic cell electrode plates generally consist of two parts: an electrode frame and a main electrode plate. The electrode frame is fitted over the main electrode plate, and the two are welded together to form the electrolytic cell electrode plate. The main electrode plate is one of the key components of an alkaline hydrogen production electrolytic cell, primarily serving to conduct electrons and block the alkaline solutions at the cathode and anode. Common main electrode plate structures include nipple plates, mesh plates, and elastic meshes. Nipple plates offer high strength and good support, while mesh plates and elastic meshes offer advantages such as large contact area and high efficiency. Mesh plates (also known as diamond mesh or stretched mesh) also have the advantages of simple processing, low cost, good support, and resistance to deformation. Compared to mesh plates, elastic meshes offer better contact but poorer support and are more prone to deformation. Currently, existing main electrode plates generally only use one of these three types: nipple plates, mesh plates, or elastic meshes. There is currently a lack of electrolytic cell electrode plates and electrolytic cells that combine the advantages of nipple plates, mesh plates, and elastic meshes. Utility Model Content

[0004] The purpose of this invention is to provide an electrolytic cell electrode plate and an electrolytic cell that combine the advantages of nipple plates, mesh plates, and / or elastic meshes, and is highly efficient, reliable, and has a long service life.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, the present invention provides an electrolytic cell electrode plate, including an electrode frame; a main electrode plate is sleeved on the inner side of the electrode frame, the main electrode plate includes multiple electrode plate partitions, the multiple electrode plate partitions are sequentially sleeved or arranged around the inner side of the electrode frame, the multiple electrode plate partitions are at least two of the following: nipple partitions, elastic mesh partitions, and plate mesh partitions, wherein the nipple partitions are nipple plates, the elastic mesh partitions include elastic mesh, and the plate mesh partitions include plate mesh.

[0007] Furthermore, the number of electrode plate partitions is two, namely a papillary partition, an elastic mesh partition, or a plate mesh partition. The elastic mesh partition or plate mesh partition, the papillary partition, and the electrode frame are nested sequentially from the inside out, or the papillary partition, the elastic mesh partition or plate mesh partition, and the electrode frame are nested sequentially from the inside out.

[0008] Furthermore, each of the aforementioned electrode plate partitions is coaxial with the electrode frame.

[0009] Furthermore, the number of electrode plate partitions is three, namely, a papillary partition, an elastic mesh partition, and a plate mesh partition. The papillary partition, elastic mesh partition, and plate mesh partition are arranged in a fan shape, equally or unequally divided, around the inner side of the electrode frame.

[0010] Furthermore, the number of electrode plate partitions is a multiple of 3, and multiple electrode plate partitions are arranged in groups of three, fan-shaped, and equally distributed around the inner side of the electrode frame.

[0011] Furthermore, the pole frame has several air outlets and liquid inlets on both its front and back sides, and each air outlet and liquid inlet is symmetrical about the vertical center line of the pole frame.

[0012] Furthermore, the elastic mesh partition and the plate mesh partition are symmetrical about the vertical center line of the pole frame, and the papillary partition itself is symmetrical about the vertical center line of the pole frame.

[0013] Furthermore, the electrode plates of the electrolytic cell are circular or square.

[0014] On the other hand, this utility model also provides an electrolytic cell, including a plurality of the above-mentioned electrolytic cell plates, wherein the plurality of electrolytic cell plates are stacked to form an electrolytic cell in series or in parallel, and the electrolytic cell is a circular or square electrolytic cell.

[0015] Due to the adoption of the above structure, the beneficial effects of this utility model are as follows:

[0016] This invention features an electrode frame and a main electrode plate. The main electrode plate includes multiple electrode plate partitions, which are sequentially nested or arranged around the inner side of the electrode frame. Each electrode plate partition is at least one of three types: nipple partitions, elastic mesh partitions, and plate mesh partitions. This allows one or more nipple partitions to be combined with one or more elastic mesh partitions and / or plate mesh partitions to form the main electrode plate. The combination is flexible and diverse, and the combination can combine the advantages of nipple plates, plate meshes, and elastic meshes to obtain an efficient, reliable, and long-life electrolytic cell electrode plate and electrolytic cell.

[0017] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the elastic mesh partition or plate mesh partition in Embodiment 1 of this utility model when it is located inside the mastoid partition;

[0020] Figure 2 This is a front view of the main electrode plate when the elastic mesh partition or plate mesh partition of Embodiment 1 of this utility model is located inside the mastoid partition;

[0021] Figure 3 This is a cross-sectional view (AA) of the present invention;

[0022] Figure 4 This is a front view of the elastic mesh partition or plate mesh partition in Embodiment 1 of this utility model when it is located outside the mastoid partition;

[0023] Figure 5 This is a front view of the main electrode plate when the elastic mesh partition or plate mesh partition of Embodiment 1 of this utility model is located outside the mastoid partition;

[0024] Figure 6 This is a BB cross-sectional view of the present invention;

[0025] Figure 7 This is a front view of Embodiment 2 of the present invention;

[0026] Figure 8 This is a front view of the main electrode plate in Embodiment 2 of this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of the pole frame of this utility model;

[0028] Figure 10 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0029] Figure reference numerals: pole frame-1, papillary zone-2, elastic mesh zone-3, plate mesh zone-4, elastic mesh zone or plate mesh zone-5, air outlet-6, liquid inlet-7. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Implementation 1

[0032] Please refer to Figures 1 to 6 This embodiment provides an electrolytic cell electrode plate, including an electrode frame 1; a main electrode plate is sleeved on the inner side of the electrode frame 1, the main electrode plate including multiple electrode plate partitions, the multiple electrode plate partitions being sequentially sleeved or surrounding the inner side of the electrode frame 1, the multiple electrode plate partitions being at least two of the following: nipple partition 2, elastic mesh partition 3, and plate mesh partition 4, so that one or more nipple partitions 2 can be combined with one or more elastic mesh partitions 3 and / or plate mesh partitions 4 to form the main electrode plate; wherein, the nipple partition 2 is a nipple plate, the elastic mesh partition 3 includes an elastic mesh, and the plate mesh partition 4 includes a plate mesh. Specifically, the nipple protrusion section 2 and the elastic mesh section 3 or the plate mesh section 4 are processed from the same circular or square deep-drawing plate. The nipple protrusion section 2 is processed by stamping, while the elastic mesh section 3 and the plate mesh section 4 are not stamped. The main electrode plate is formed by installing the elastic mesh and the plate mesh at the corresponding positions. The combination is flexible and diverse. After combination, the advantages of the nipple plate (high strength and good support) and the elastic mesh and plate mesh (large contact area and high efficiency) can be utilized, thereby obtaining an efficient, reliable and long-life electrolytic cell electrode plate and electrolytic cell.

[0033] Optionally, the nipple partition 2 has multiple protrusions and concave points; the nipple partition 2 and the elastic mesh partition 3 or the plate mesh partition 4 form a main electrode plate, and the electrode frame 1 is welded to the main electrode plate to form an electrolytic cell electrode plate.

[0034] In this embodiment, there are two electrode plate partitions: a nipple partition 2 and an elastic mesh partition or a plate mesh partition 5. The elastic mesh partition or plate mesh partition 5, the nipple partition 2, and the electrode frame 1 are nested sequentially from the inside out. Alternatively, the nipple partition 2, the elastic mesh partition or plate mesh partition 5, and the electrode frame 1 are nested sequentially from the inside out. The relative positions of the nipple partition 2 and the elastic mesh partition or plate mesh partition 5 can be changed as needed, and their combination is flexible, thus adaptable to various types and specifications of electrolytic cells.

[0035] In this embodiment, each of the electrode plate partitions is coaxial with the electrode frame 1, which can effectively improve the uniformity of electrolyte flow rate, temperature, bubble distribution, etc. during electrolysis, making the electrolysis reaction more stable and reliable.

[0036] Please refer to Figure 9 In this embodiment, the electrode frame 1 has several gas outlets 6 and liquid inlets 7 on both its front and back sides. Each gas outlet 6 and each liquid inlet 7 is symmetrical about the vertical center line of the electrode frame 1. The electrolyte enters the chamber through the liquid inlet 7 to react, and the gas generated after the electrolysis reaction is discharged through the gas outlet 6.

[0037] Preferably, the plurality of gas outlets 6 include hydrogen gas outlets and oxygen gas outlets, which are respectively located on the left and right sides of the electrode frame 1. The hydrogen and oxygen generated after the electrolysis reaction are discharged from the hydrogen gas outlets and oxygen gas outlets, respectively.

[0038] As a further improvement to this embodiment, the number of electrode plate partitions can be a multiple of two, such as four, six, eight, etc. Multiple electrode plate partitions are arranged in pairs and sequentially nested inside the electrode frame 1. Each group of electrode plate partitions includes a papillary partition 2, an elastic mesh partition or a plate mesh partition 5. Multiple papillary partitions 2 and multiple elastic mesh partitions or plate mesh partitions 5 are nested in pairs or alternately nested inside the electrode frame 1, further improving the flexibility and diversity of the combination form.

[0039] Example 2

[0040] Please refer to Figure 7 and Figure 8 The difference between this embodiment and Embodiment 1 is that:

[0041] In this embodiment, there are three electrode plate partitions, namely, the nipple partition 2, the elastic mesh partition 3, and the plate mesh partition 4. The nipple partition 2, the elastic mesh partition 3, and the plate mesh partition 4 are arranged in a fan shape, equally or unequally divided, around the inner side of the electrode frame 1.

[0042] The nipple-shaped partition 2 has the advantages of high strength and good support. The plate mesh partition 4, also known as diamond mesh or stretched mesh, has the advantages of simple processing, low cost, good support, and resistance to deformation. The elastic mesh partition 3 has good contact but poor support and is easily deformed. Combining the nipple-shaped partition 2 with the elastic mesh partition 3 and the plate mesh partition 4 can combine the advantages of the nipple-shaped partition 2, the elastic mesh partition 3, and the plate mesh partition 4 to form an electrolytic cell electrode plate with a simple structure, high efficiency, reliability, and long service life.

[0043] In this embodiment, the elastic mesh partition 3 and the plate mesh partition 4 are symmetrical about the vertical center line of the pole frame 1, and the nipple partition 2 itself is symmetrical about the vertical center line of the pole frame 1.

[0044] As a further improvement to this embodiment, the number of electrode plate partitions is a multiple of 3, such as six, nine, twelve, etc., and multiple electrode plate partitions are arranged in groups of three, fan-shaped, and equally distributed around the inner side of the electrode frame 1. Each group of electrode plate partitions includes a nipple partition 2, an elastic mesh partition 3, and a plate mesh partition 4, thereby combining the advantages of high strength and good support of the nipple partition 2 with the advantages of large contact area and high efficiency of the elastic mesh partition 3 and the plate mesh partition 4, and effectively improving the flexibility and diversity of the combination form, making it suitable for more types and specifications of electrolytic cells.

[0045] Optionally, the proportions of the papillary partition 2, elastic mesh partition 4, and plate mesh partition 5 in each group of electrode plate partitions are equal or unequal, and the relative positions of the papillary partition 2, elastic mesh partition 4, and plate mesh partition 5 in different groups of electrode plate partitions are the same or different, further improving the flexibility and diversity of the combination forms.

[0046] Example 3

[0047] Please refer to Figure 10 This embodiment provides an electrolytic cell comprising multiple electrolytic cell plates as described in Embodiment 1 or Embodiment 2. These multiple electrolytic cell plates are stacked to form an electrolytic cell in series or parallel connection. The electrolytic cell provided in this embodiment has the advantages of high efficiency, reliability, and long lifespan.

[0048] It should be noted that the electrode plates of the electrolytic cell are circular, square, or other shapes, so that they can be applied to electrolytic cells of various forms and specifications, such as circular and square.

[0049] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. An electrolytic cell electrode plate, comprising an electrode frame (1); characterized in that: The inner side of the pole frame (1) is fitted with a main pole plate. The main pole plate includes multiple pole plate partitions. The multiple pole plate partitions are sequentially fitted or arranged around the inner side of the pole frame (1). The multiple pole plate partitions are at least two of the following: a papillary partition (2), an elastic mesh partition (3), and a plate mesh partition (4). The papillary partition (2) is a papillary plate, the elastic mesh partition (3) includes an elastic mesh, and the plate mesh partition (4) includes a plate mesh.

2. The electrolytic cell electrode plate according to claim 1, characterized in that: The number of electrode plate partitions is two, namely, the papillary partition (2), the elastic mesh partition (3) or the plate mesh partition (4). The elastic mesh partition (3) or the plate mesh partition (4), the papillary partition (2) and the electrode frame (1) are nested from the inside out. Alternatively, the papillary partition (2), the elastic mesh partition (3) or the plate mesh partition (4) and the electrode frame (1) are nested from the inside out.

3. An electrolytic cell electrode plate according to claim 1 or 2, characterized in that: Each of the aforementioned electrode plate partitions is coaxial with the electrode frame (1).

4. An electrolytic cell electrode plate according to claim 1, characterized in that: The number of electrode plate partitions is three, namely, the papillary partition (2), the elastic mesh partition (3), and the plate mesh partition (4). The papillary partition (2), the elastic mesh partition (3), and the plate mesh partition (4) are arranged in a fan shape, equally or unequally divided, around the inner side of the electrode frame (1).

5. An electrolytic cell electrode plate according to claim 1, characterized in that: The number of electrode plate partitions is a multiple of 3, and multiple electrode plate partitions are arranged in groups of three in a fan shape around the inner side of the electrode frame (1).

6. An electrolytic cell electrode plate according to claim 1, 2, 4, or 5, characterized in that: The pole frame (1) has several air outlets (6) and liquid inlets (7) on both sides. Each air outlet (6) and each liquid inlet (7) is symmetrical about the vertical center line of the pole frame (1).

7. An electrolytic cell electrode plate according to claim 4, characterized in that: The elastic mesh partition (3) and the plate mesh partition (4) are symmetrical about the vertical center line of the pole frame (1), and the nipple partition (2) itself is symmetrical about the vertical center line of the pole frame (1).

8. An electrolytic cell electrode plate according to claim 1, 2, 4, 5, or 7, characterized in that: The electrode plates of the electrolytic cell are circular or square.

9. An electrolytic cell, characterized in that: It includes a plurality of electrolytic cell plates as described in any one of claims 1 to 8, wherein the plurality of electrolytic cell plates are stacked to form an electrolytic cell in series or in parallel, and the electrolytic cell is a circular or square electrolytic cell.

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