Anion exchange membrane mounting structure

Abstract

The utility model discloses an anion exchange membrane mounting structure which comprises a mounting frame, the number of the mounting frames is two, anion exchange membranes are arranged in the mounting frames, and an anode catalyst layer and a cathode catalyst layer are arranged on the two sides of each mounting frame respectively; protective plates are arranged on the peripheries of the anode catalyst layer and the cathode catalyst layer; the mounting frame comprises a sub-frame and a mother frame which are integrally formed, the rear sides of the sub-frame and the mother frame are connected, the centers of the sub-frame and the mother frame are respectively provided with a rectangular groove, the edge of the rectangular groove of the sub-frame is provided with an insertion block, the edge of the rectangular groove of the mother frame is provided with an insertion groove, and the insertion blocks and the insertion grooves are arranged in a one-to-one correspondence manner; according to the utility model, the whole membrane electrode is provided with only two positioning through holes, so that the positioning can be realized, most structures are simplified, and the processing workload is reduced.

Description

Technical Field

[0001] The utility model relates to the field of anion exchange membrane water electrolysis, in particular to an anion exchange membrane installation structure. Background Art

[0002] Anion exchange membrane water electrolysis (AEM) is considered to be a highly promising hydrogen production technology due to its unique advantages of low cost and high efficiency. Anion exchange membrane water electrolysis hydrogen production technology combines the simplicity and ease of operation of proton exchange membrane water electrolysis hydrogen production technology, and can use low-cost alkaline compatible electrodes and hydrocarbon membranes.

[0003] For example, the patent with authorization announcement number CN221094299U discloses a membrane electrode for AEM water electrolysis to produce hydrogen, comprising: an anion exchange membrane, an anode catalyst layer and a cathode catalyst layer are respectively provided on two opposite sides of the anion exchange membrane, an anode protection layer is provided on the side of the anode catalyst layer away from the anion exchange membrane, and a cathode protection layer is provided on the side of the cathode catalyst layer away from the anion exchange membrane, the anode protection layer, the anode catalyst layer, the anion exchange membrane, the cathode catalyst layer and the cathode protection layer are sequentially connected to form an integral structure; the outer peripheral dimensions of the anode protection layer and the cathode protection layer are both larger than the outer peripheral dimensions of the anion exchange membrane, the anode catalyst layer and the cathode catalyst layer.

[0004] The membrane electrode of the above patent has the characteristics of low impedance and high catalytic activity. It can significantly improve the efficiency of hydrogen production by electrolysis of water when used in AEM electrolyzer. The installation structure of the exchange membrane in the above patent is relatively simple. The exchange membrane is installed on the connecting block, and its fixing effect is poor.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide an anion exchange membrane installation structure to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An anion exchange membrane installation structure comprises an installation frame; two installation frames are provided, an anion exchange membrane is provided in the installation frame, and an anode catalyst layer and a cathode catalyst layer are provided on both sides of the installation frame respectively; protective plates are provided on the periphery of the anode catalyst layer and the cathode catalyst layer; the installation frame comprises an integrally formed sub-frame and a main frame, the rear sides of the sub-frame and the main frame are connected, wherein a rectangular groove is provided at the center of the sub-frame and the main frame, and a plug-in block is provided at the edge of the rectangular groove of the sub-frame, and a plug-in groove is opened at the edge of the rectangular groove of the main frame, and the plug-in block and the plug-in groove are provided in a one-to-one correspondence; rectangular slots adapted to the protective plates are provided on the outer sides of the sub-frame and the main frame, and the anode catalyst layer and the cathode catalyst layer are accurately assembled in the rectangular slots through the protective plates.

[0009] Furthermore, the thickness of the plug-in block is smaller than the thickness of the mother frame.

[0010] Furthermore, connecting plates are extended upward and downward from the rear sides of the sub-frame and the main frame, and the extending directions of the two connecting plates are away from each other.

[0011] Furthermore, a fold line is provided at the connection of the connection plates of the sub-frame and the main frame, wherein the width of the connection of the two connection plates is smaller than the width of the connection plates.

[0012] Furthermore, positioning through holes are provided at the ends of the connecting plates of the sub-frame and the main frame.

[0013] Furthermore, the anion exchange membrane is provided with a positioning hole at the corresponding plug-in block.

[0014] Furthermore, the plug-in block passes through the positioning hole and the plug-in slot in sequence, and there are at least three plug-in blocks, and there are at least three corresponding positioning holes and plug-in slots.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The anode catalyst layer and the cathode catalyst layer are positioned by rectangular slots, and the anion exchange membrane is positioned by positioning holes; at the same time, positioning through holes are provided at the ends of the connecting plates. This arrangement allows the entire membrane electrode to be positioned with only two positioning through holes, which simplifies most of the structure and reduces the processing workload. The locations where the positioning through holes were opened in the original technology are all solid structures, which increases the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the anion exchange membrane installation structure.

[0018] Figure 2 It is a front view of the anion exchange membrane mounting structure.

[0019] Figure 3 for Figure 2 Sectional view along AA direction.

[0020] Figure 4 Exploded view of the anion exchange membrane installation structure. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0022] See also Figure 1-4 , an anion exchange membrane installation structure, including an installation frame 1;

[0023] An anion exchange membrane 2 is arranged in the installation frame 1, and an anode catalyst layer 3 and a cathode catalyst layer 4 are arranged on both sides of the installation frame 1; and a protective plate 5 is arranged on the periphery of the anode catalyst layer 3 and the cathode catalyst layer 4;

[0024] Specifically, the installation frame 1 includes an integrally formed sub-frame 6 and a mother frame 7, the rear sides of the sub-frame 6 and the mother frame 7 are connected, wherein a rectangular groove 8 is provided at the center of each of the sub-frame 6 and the mother frame 7, and a plug-in block 9 is provided at the edge of the rectangular groove 8 of the sub-frame 6, and a plug-in groove 11 is provided at the edge of the rectangular groove 8 of the mother frame 7, and the plug-in block 9 is provided in a one-to-one correspondence with the plug-in groove 11, and the thickness of the plug-in block is less than the thickness of the mother frame 7;

[0025] This arrangement can ensure that after the hot pressing of the entire anion exchange membrane installation structure, the plug-in block will not pierce the protective plate 5 of the anode catalyst layer 3 and the cathode catalyst layer 4;

[0026] Specifically, connecting plates 10 are extended from the upper and lower rear sides of the sub-frame 6 and the main frame 7, and the extending directions of the two connecting plates 10 are away from each other; a fold line is provided at the connection of the two connecting plates 10, and the width of the connection of the two connecting plates 10 is smaller than the width of the connecting plates 10;

[0027] At the same time, the ends of the two connecting plates 10 are both provided with positioning through holes 13. This arrangement enables the entire membrane electrode to have only two positioning through holes, which can achieve positioning. Compared with the background technology in which through holes are opened around the anode protection layer and the cathode protection layer for positioning, most of the structures are simplified and the processing workload is reduced;

[0028] When the sub-frame 6 and the main frame 7 are folded in half along the connection of the connecting plate 10, the plug-in block 9 is plugged into the plug-in slot 11; this ensures that the sub-frame 6 and the main frame 7 are aligned when the anion exchange membrane 2 is installed;

[0029] At the same time, the outer sides of the sub-frame 6 and the main frame 7 are both provided with rectangular slots 12 adapted to the protective plate 5, and the anode catalyst layer 3 and the cathode catalyst layer 4 are both accurately assembled in the rectangular slots 12 through the protective plate 5;

[0030] As some embodiments of the present scheme, in order to ensure the accuracy of the installation of the anion exchange membrane 2, the anion exchange membrane 2 is provided with a positioning groove 14 at the corresponding plug-in block 9; the plug-in block 9 passes through the positioning groove 14 and the plug-in groove 11 in sequence, and the plug-in block 9 is provided with at least three, and the corresponding positioning grooves 14 and the plug-in grooves 11 are also provided with at least three;

[0031] When the utility model is used, the anion exchange membrane 2 is installed in the sub-frame 6 and the main frame 7 of the installation frame 1, the sub-frame 6 and the main frame 7 are folded along the fold line of the connecting plate 10, the plug-in block 9 passes through the positioning groove 14 and is plugged into the plug-in groove 11, and the anode catalyst layer 3 and the cathode catalyst layer 4 are clamped on the outside of the sub-frame 6 and the main frame 7 through the protective plate 5, and then are composited by hot pressing.

[0032] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment 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 of the present utility model. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

Claims

1. Anion exchange membrane installation structure, characterized in that: It comprises an installation frame; two installation frames are provided, an anion exchange membrane is provided in the installation frame, and an anode catalyst layer and a cathode catalyst layer are provided on both sides of the installation frame respectively; protective plates are provided on the peripheries of the anode catalyst layer and the cathode catalyst layer; the installation frame comprises an integrally formed sub-frame and a main frame, the rear sides of the sub-frame and the main frame are connected, wherein a rectangular groove is provided at the center of the sub-frame and the main frame, and a plug-in block is provided at the edge of the rectangular groove of the sub-frame, and a plug-in groove is opened at the edge of the rectangular groove of the main frame, and the plug-in block and the plug-in groove are provided in a one-to-one correspondence; rectangular card slots adapted to the protective plates are provided on the outer sides of the sub-frame and the main frame, and the anode catalyst layer and the cathode catalyst layer are accurately assembled in the rectangular card slots through the protective plates.

2. The anion exchange membrane installation structure according to claim 1, characterized in that: The thickness of the plug-in block is smaller than the thickness of the mother frame.

3. The anion exchange membrane installation structure according to claim 1, characterized in that: Connecting plates are extended upward and downward from the rear sides of the sub-frame and the main frame, and the extending directions of the two connecting plates are away from each other.

4. The anion exchange membrane installation structure according to claim 3, characterized in that: A fold line is provided at the connection of the connection plates of the sub-frame and the main frame, wherein the width of the connection of the two connection plates is smaller than the width of the connection plates.

5. The anion exchange membrane installation structure according to claim 3, characterized in that: The ends of the connecting plates of the sub-frame and the main frame are both provided with positioning through holes.

6. The anion exchange membrane installation structure according to claim 1, characterized in that: The anion exchange membrane is provided with positioning holes at corresponding plug-in blocks.

7. The anion exchange membrane installation structure according to claim 6, characterized in that: The plug-in blocks pass through the positioning holes and the plug-in slots in sequence, and there are at least three plug-in blocks, and there are at least three corresponding positioning holes and plug-in slots.

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