Exchange membrane electrolytic cell

Abstract

The utility model discloses an exchange membrane electrolyzer, including: electrolyzing part, electrolyzing part includes metal frame, membrane body, electrode, tight part, tight part includes support plate, internal groove, elastic block, transverse plate, spring and support rod, the support plate is located the both ends of metal frame external surface, internal groove is opened on the external surface of electrode, elastic block, transverse plate, spring and support rod, the elastic block is opened on the external surface of metal frame. The transverse plates movably penetrate through the interiors of the supporting plates, the supporting rods are fixed to one ends of the supporting plates, the springs are wound around the outer surfaces of the supporting rods, and the elastic blocks are fixed between one ends of the two transverse plates and embedded into the inner grooves. The electrode and the exchange membrane are difficult to form close contact, a certain gap exists between the electrode and the exchange membrane due to microscopic unevenness of the surface of the electrode and tiny deformation of the exchange membrane in the assembly process, the gap can cause remarkable negative effects in the electrolysis process, the resistance can be increased due to the non-close contact, and the electrolysis efficiency is improved. Therefore, the energy consumption in the electrolysis process is increased, and the resistance of current conduction is greatly increased.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to an exchange membrane electrolyzer. Background Technology

[0002] In many industrial fields such as chemical engineering, metallurgy, and energy, ion exchange membrane electrolyzers are a key piece of equipment. By leveraging the selective permeability of ion exchange membranes, they enable the directional movement of anions and cations, thereby achieving the efficient electrolytic preparation or precise separation of specific substances.

[0003] It is difficult to form a tight contact between the electrode and the exchange membrane. The microscopic unevenness of the electrode surface and the slight deformation of the exchange membrane during assembly result in a certain gap between the two. This gap will have a significant negative impact on the electrolysis process. This loose contact will increase the resistance, leading to increased energy consumption during electrolysis and greatly increasing the resistance to current conduction. Utility Model Content

[0004] The purpose of this invention is to provide an exchange membrane electrolyzer to solve the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution:

[0005] This utility model relates to an exchange membrane electrolyzer, comprising:

[0006] An electrolysis unit, comprising a metal frame, a membrane, and electrodes, wherein the membrane is disposed in the middle of the inner surface of the metal frame, and the electrodes surround the two ends of the outer surface of the membrane.

[0007] The tight component includes a support plate, an inner groove, an elastic block, a cross plate, a spring, and a support rod. The support plate is located at both ends of the outer surface of the metal frame. The inner groove is opened on the outer surface of the electrode. The cross plate moves through the inside of the support plate. The support rod is fixed to one end of the support plate. The spring is wrapped around the outer surface of the support rod. The elastic block is fixed between one end of the two cross plates and is embedded in the inside of the inner groove.

[0008] Furthermore, the support component includes a rotating shaft and a drive rod. The drive rod is fixed to both ends of the outer surface of the metal frame, and the rotating shaft is located at both ends of the outer surface of the support plate and rotates outside the drive rod.

[0009] Furthermore, limit plates are welded to both ends of the outer surface of the metal frame, and the limit plates are supported at the bottom of the support plate.

[0010] Furthermore, a support groove is provided on the top of the limiting plate, and a support block is fixed at one end of the top and bottom of the support plate, with the support block snapping into the inside of the support groove.

[0011] Furthermore, the electrolysis component also includes a separator, which surrounds one end of the outer surface of the electrode and is located inside the metal frame. The separator has a groove inside.

[0012] Furthermore, it also includes a sealing component, which includes an inner groove, a sealing ring, a baffle, and a limiting strip. The inner groove is formed on the outer surface of the electrode, the sealing ring is bonded to one end of the partition and embedded inside the inner groove, the baffle extends through both sides of the metal frame and blocks the other end of the partition, and the limiting strip is fixed to one side of the baffle.

[0013] Furthermore, the inner wall of the metal frame is provided with a snap-fit ​​groove, and snap-fit ​​blocks are fixed at the top and bottom of the partition, with the snap-fit ​​blocks inserted into the inside of the snap-fit ​​groove.

[0014] This utility model has the following beneficial effects:

[0015] This invention features a metal frame with a support plate, an inner groove, an elastic block, a horizontal plate, a spring, and a support rod. Electrodes are tightly mounted and attached to both ends of the outer surface of the membrane. The electrodes rotate flexibly outside the drive rod via a rotating shaft. When the elastic block rotates to the position corresponding to the inner groove, the elastic force of the spring is a stable and continuous force, evenly distributed on the contact surface between the electrode and the membrane. Through the elastic force of the spring, the electrode is pressed tightly against the membrane. This tight fit effectively eliminates any possible tiny gaps between the two, significantly reducing the contact resistance between the electrode and the membrane. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0017] Figure 1 This is a schematic diagram of the overall metal frame of this utility model;

[0018] Figure 2 This is a schematic diagram of the metal frame after the electrodes and separators of this utility model are separated.

[0019] Figure 3 This utility model Figure 1 Enlarged schematic diagram of part A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 100. Metal frame; 101. Membrane; 102. Electrode; 103. Separator;

[0022] 200. Support plate; 201. Inner groove; 202. Elastic block; 203. Horizontal plate; 204. Spring; 205. Support rod;

[0023] 300. Limiting plate; 301. Support block; 302. Support groove; 303. Groove body; 304. Rotating shaft; 305. Drive rod;

[0024] 400. Inner groove; 401. Sealing ring; 402. Baffle; 403. Limiting strip; 404. Snap-fit ​​block; 405. Snap-fit ​​groove. Detailed Implementation

[0025] 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.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this utility model is an exchange membrane electrolyzer, comprising:

[0028] An electrolysis unit, comprising a metal frame 100, a membrane 101, and electrodes 102, wherein the membrane 101 is disposed in the middle of the inner surface of the metal frame 100, and the electrodes 102 surround the two ends of the outer surface of the membrane 101.

[0029] The tight-fitting component includes a support plate 200, an inner groove 201, an elastic block 202, a horizontal plate 203, a spring 204, and a support rod 205. The support plate 200 is located at both ends of the outer surface of the metal frame 100. The inner groove 201 is opened on the outer surface of the electrode 102. The horizontal plate 203 moves through the inside of the support plate 200. The support rod 205 is fixed to one end of the support plate 200. The spring 204 is wrapped around the outer surface of the support rod 205. The elastic block 202 is fixed between one end of the two horizontal plates 203 and is embedded in the inside of the inner groove 201.

[0030] Electrode 102 is tightly mounted and attached to both ends of the outer surface of membrane 101. It rotates flexibly outside the drive rod 305 with the help of rotating shaft 304. When elastic block 202 rotates to the position corresponding to inner groove 201, the elastic force of spring 204 is a stable and continuous force, which is evenly distributed on the contact surface between electrode 102 and membrane 101. Through the elastic force of spring 204, electrode 102 is pressed tightly against membrane 101.

[0031] It also includes a support component, which includes a rotating shaft 304 and a drive rod 305. The drive rod 305 is fixed to both ends of the outer surface of the metal frame 100, and the rotating shaft 304 is disposed at both ends of the outer surface of the support plate 200 and rotates outside the drive rod 305.

[0032] The rotating shaft 304 can rotate outside the drive rod 305 to rotate and adjust the elastic block 202, ensuring that the elastic block 202 can be fixed inside the inner groove 201.

[0033] Limiting plates 300 are welded to both ends of the outer surface of the metal frame 100, and the limiting plates 300 are supported on the bottom of the support plate 200;

[0034] The rotating support plate 200 is supported by the limiting plate 300.

[0035] The top of the limiting plate 300 is provided with a support groove 302, and a support block 301 is fixed at one end of the top and bottom of the support plate 200. The support block 301 is snapped into the inside of the support groove 302.

[0036] The support block 301 is snapped into the inside of the support groove 302 to fix the rotated support plate 200.

[0037] The electrolysis component also includes a partition 103, which surrounds one end of the outer surface of the electrode 102 and is located inside the metal frame 100. A groove 303 is formed inside the partition 103.

[0038] Working principle: First, the electrode 102 is tightly installed and attached to both ends of the outer surface of the membrane 101. Through the elastic force generated by the spring 204, the horizontal plate 203 is pulled by hand. Then, with the help of the rotating shaft 304, it rotates flexibly outside the drive rod 305. When the elastic block 202 rotates to the position corresponding to the inner groove 201, the elastic force of the spring 204 is a stable and continuous force. Through the rebound, the elastic block 202 is fixed inside the inner groove 201, so that it is evenly distributed on the contact surface between the electrode 102 and the membrane 101. Through the elastic force of the spring 204, the electrode 102 is pressed tightly against the membrane 101. This tight fit effectively eliminates any possible small gaps between the two and greatly reduces the contact resistance between the electrode 102 and the membrane 101. Support blocks 301 are distributed at the top and bottom of the support plate 200. By rotating, the support blocks 301 can be locked inside the support groove 302 to support the rotated support plate 200.

[0039] Please see Figure 1 , Figure 2 As shown, this embodiment, based on the above embodiment, further includes:

[0040] The sealing component includes an inner groove 400, a sealing ring 401, a baffle 402, and a limiting strip 403. The inner groove 400 is formed on the outer surface of the electrode 102. The sealing ring 401 is bonded to one end of the partition 103 and embedded in the inner groove 400. The baffle 402 extends through both sides of the metal frame 100 and blocks the other end of the partition 103. The limiting strip 403 is fixed to one side of the baffle 402.

[0041] To prevent electrolyte leakage, a sealing ring 401 is installed at one end of the partition 103. The sealing ring 401 is made of chemically resistant rubber material to ensure the sealing of the entire electrolytic cell.

[0042] The inner wall of the metal frame 100 is provided with a snap-fit ​​groove 405, and the top and bottom of the partition 103 are fixed with snap-fit ​​blocks 404, which are inserted into the inside of the snap-fit ​​groove 405.

[0043] After the baffle 402 is pulled out, the snap-fit ​​block 404 is inserted into the snap-fit ​​groove 405, which facilitates the disassembly of the partition 103.

[0044] Working principle: The sealing ring 401 is made of chemically resistant rubber material. In complex electrolytic environments, electrolytes are often highly corrosive. This chemically resistant rubber material can resist the erosion of the electrolyte, ensuring that the performance of the sealing ring 401 is not affected during long-term use. Embedding the sealing ring 401 inside the inner groove 400 can effectively prevent the sealing ring 401 from shifting during use. Pushing the baffle 402 to block it at the outer end of the partition 103 provides additional external support for the sealing ring 401. When the baffle 402 is in place, it will apply a uniform pressure to the sealing ring 401, so that the sealing ring 401 can be more tightly fixed inside the inner groove 400, preventing the sealing ring 401 from deforming or shifting due to pressure.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An exchange membrane electrolyzer, characterized in that, include: An electrolysis component, comprising a metal frame (100), a membrane (101), and electrodes (102), wherein the membrane (101) is disposed in the middle of the inner surface of the metal frame (100), and the electrodes (102) surround the two ends of the outer surface of the membrane (101); The tight component includes a support plate (200), an inner groove (201), an elastic block (202), a horizontal plate (203), a spring (204), and a support rod (205). The support plate (200) is located at both ends of the outer surface of the metal frame (100). The inner groove (201) is opened on the outer surface of the electrode (102). The horizontal plate (203) moves through the inside of the support plate (200). The support rod (205) is fixed to one end of the support plate (200). The spring (204) is wrapped around the outer surface of the support rod (205). The elastic block (202) is fixed between one end of the two horizontal plates (203) and is embedded in the inside of the inner groove (201).

2. The membrane electrolyzer according to claim 1, characterized in that: It also includes a support component, which includes a rotating shaft (304) and a drive rod (305). The drive rod (305) is fixed at both ends of the outer surface of the metal frame (100), and the rotating shaft (304) is located at both ends of the outer surface of the support plate (200) and rotates outside the drive rod (305).

3. The membrane electrolyzer according to claim 2, characterized in that: Limiting plates (300) are welded to both ends of the outer surface of the metal frame (100), and the limiting plates (300) are supported on the bottom of the support plate (200).

4. The membrane electrolyzer according to claim 3, characterized in that: The top of the limiting plate (300) is provided with a support groove (302), and a support block (301) is fixed at one end of the top and bottom of the support plate (200). The support block (301) is snapped into the inside of the support groove (302).

5. The membrane electrolyzer according to claim 1, characterized in that: The electrolysis component also includes a partition (103), which surrounds one end of the outer surface of the electrode (102) and is located inside the metal frame (100). A groove (303) is formed inside the partition (103).

6. The membrane electrolyzer according to claim 1, characterized in that: It also includes a sealing component, which includes an inner groove (400), a sealing ring (401), a baffle (402), and a limiting strip (403). The inner groove (400) is formed on the outer surface of the electrode (102). The sealing ring (401) is bonded to one end of the partition (103) and embedded in the inner groove (400). The baffle (402) extends through both sides of the metal frame (100) and blocks the other end of the partition (103). The limiting strip (403) is fixed to one side of the baffle (402).

7. The membrane electrolyzer according to claim 6, characterized in that: The inner wall of the metal frame (100) is provided with a snap-fit ​​groove (405), and snap-fit ​​blocks (404) are fixed at the top and bottom of the partition (103). The snap-fit ​​blocks (404) are inserted into the inside of the snap-fit ​​groove (405).

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