Electrochemical water treatment device

Abstract

The invention discloses an electrochemical water treatment device which comprises two main supports and upper sliding frames, the two main supports are symmetrically arranged, the multiple upper sliding frames are connected to the main supports in a sliding mode, a frame assembly is arranged below each upper sliding frame, an electrode plate or an ionic membrane is installed in each frame assembly, and each frame assembly is composed of two frames. The relative positions of the two frames can be adjusted to adapt to electrode plates or ionic membranes of different sizes, a positioning assembly is installed on the frame assembly, the positioning assembly is connected to the upper sliding frame, the positioning assembly can enable the position of one frame to be fixed relative to the position of the upper sliding frame, and therefore different flow channel arrangement is achieved. The electrode plates or the ionic membranes with different sizes can be installed by arranging the frame assembly, the electrode plates and the ionic membranes do not need to be independently fixed, the distance between the electrode plates or between the electrode plates and the ionic membranes can be adjusted through the sliding frame, the electrode plates can be controlled to be close to the left or the right by matching with the positioning assembly, and therefore different flow channels are formed through arrangement.

Description

Technical Field

[0001] The invention relates to the field of electrolytic sewage, and in particular to an electrochemical water treatment device. Background Art

[0002] Thermal power plants are large users of industrial water. During normal operation, the circulating cooling water system accounts for almost 70% to 80% of the total water used in thermal power plants. Therefore, in order to reuse the circulating cooling water as much as possible, the concentration multiple of the circulating cooling water system should be increased as much as possible while ensuring that the circulating water does not scale and does not corrode the pipelines, so as to achieve the purpose of saving water resources.

[0003] Increasing the concentration ratio of circulating cooling water can greatly reduce the use of fresh water and the discharge of sewage, and can also reduce the use of scale inhibitors and corrosion inhibitors, thereby reducing the cost of power generation. However, the higher the concentration ratio, the better. As the concentration ratio continues to increase, the salt substances in the circulating cooling water will gradually reach or exceed the saturation level, and eventually scale will form on the surface of the condenser, thereby reducing the cooling effect of the condenser.

[0004] The main characteristics of circulating water and sewage from power plants are as follows: (1) High salt content. Generally, the circulating sewage from cooling towers needs to be highly compressed, which increases the salt ion concentration. (2) High water temperature. Generally, a circulating water sewage discharge is set up before the cooling tower and after the condensation of gas. The high water temperature here can reduce the load on the cooling tower. (3) Contains a lot of organic matter. Because the concentration rate increases during the circulation process, the water treatment time is increased, which will cause a large number of bacteria and algae in the water to grow. (4) High impurity content. When water is cooled, it will carry some impurities in the air, mainly including dust, silt, etc., as well as impurities that fall off due to equipment corrosion. It also contains chemical agents such as scale inhibitors, dispersants, bactericides, and corrosion inhibitors.

[0005] As early as the 1940s, some people proposed to use electrolysis technology to treat wastewater, but due to the lack of electricity and high costs, it developed slowly. In the early 1960s, with the rapid development of the power industry, electrochemical water treatment technology attracted people's attention. Since the 1980s, with the continuous deepening of people's understanding of environmental science and the increasing requirements for the environment, electrochemical treatment technology has aroused great interest among environmental protection workers at home and abroad with its superiority. Electrochemical equipment has five major functions: descaling, scale inhibition, sterilization, algae removal, and corrosion prevention. The hardness and alkalinity in the water can be adsorbed in the electrochemical equipment in the form of solid scale to reduce the hardness of the circulating water. At the same time, the "lattice distortion" and "polarization" effects of the electromagnetic field are used to prevent the residual hardness from scaling and achieve the scale inhibition effect. Electrochemical reactions can also be used to convert chloride ions in water into hypochlorous acid and produce strong oxidizing substances such as hydrogen peroxide and ozone, and then assist the electric field and strong acid and alkali environment to achieve a sterilization effect. At the same time, electrochemical equipment can also reduce the corrosion of chloride ions, microorganisms, etc., and can destroy the "galvanic cell" effect to achieve a corrosion inhibition effect. At present, the application of electrochemical method in treating circulating water and preventing scaling of heat exchangers has made great progress in China, and is gradually moving towards automation, intelligence and large-scale development. It is believed that in the future, electrochemical method for circulating water treatment will also have good application space.

[0006] Scale prevention and descaling principle.

[0007] Strong reduction reaction at the cathode: Under the action of the electric field, a reduction reaction occurs near the cathode of the electrochemical device, causing calcium ions, magnesium ions, etc. to precipitate in the form of solids, reducing the hardness and alkalinity of the water and achieving a descaling effect. The main cathode reaction equation is: ① Generation of cathode alkaline environment 2H2O + 2e - -→ 2OH - + H2↑ ② Carbonate ion generation CO2 + OH - -→HCO3 - HCO3 - + OH - -→CO3 2- + H2O ③ Calcium carbonate and magnesium hydroxide precipitation: Ca 2+ + CO3 2- -→CaCO3↓ Mg 2+ + 2OH - -→Mg(OH)2↓ Electric field polarization: Under the action of the electric field, water molecules become polarized and break up from large molecular clusters (molecular groups) into small molecular reduced water, which enhances the solubility and permeability of the water body and plays a role in scale inhibition and dissolution.

[0008] Lattice distortion: Under the action of electric field, the crystallization process of CaCO3 is changed, so that it forms loose foamy aragonite structure soft scale, which inhibits the formation of dense calcite structure hard scale. It has good scale inhibition effect.

[0009] However, most of the existing electrode plates are fixed in the electrolytic cell, and it is difficult to remove the electrode plates to clean the soft scale on them. In the long run, the soft scale covering the electrode plates will affect the efficiency of the electrolytic cell. Some existing patents, such as the Chinese patent with patent number CN108557962A, disclose an electrochemical water treatment device. Although the electrode plate can be loosened, the electrode plate cannot be taken out and sent to the side of the electrolytic cell, making maintenance difficult. The position of the electrode plate and the ion membrane is fixed, and it is impossible to make targeted adjustments according to different sewage, decide whether to use the ion membrane, and adjust the flow channel arrangement, so it is not universal. Summary of the invention

[0010] The object of the present invention is to provide an electrochemical water treatment device to solve the problems raised in the above background technology.

[0011] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrochemical water treatment device, comprising a main support and an upper slide, wherein two main supports are symmetrically arranged, a plurality of upper slides are slidably connected to the main support, a frame assembly is arranged under each upper slide, an electrode plate or an ion membrane is installed in the frame assembly, each frame assembly is composed of two frames, and the two frames can adjust relative positions to adapt to electrode plates or ion membranes of different sizes, a positioning assembly is installed on the frame assembly, the positioning assembly is connected to the upper slide, and the positioning assembly can make one of the frames relatively fixed with the upper slide, thereby realizing different flow channel arrangements; The upper slide is provided with walking parts at both ends, which drive the upper slide to slide on the main support, and the upper slide is also provided with a translation part, which drives the frame assembly to move for maintenance; The translation part includes a translation spline shaft and a translation spiral shaft. The translation spline shaft is slidably connected to a translation slider, and the lower end of the translation slider is connected to a positioning component. The translation spiral shaft cooperates with the translation spline shaft to enable the translation slider to drive the electrode plate to move to the side of the electrolytic cell.

[0012] Preferably, the frame is U-shaped, and a frame slider is fixedly connected at both ends of each frame. A frame slide groove is provided next to the frame slider, and the frame slider is slidably connected to the frame slide groove of another frame in the same frame assembly. The frame slider is fixedly connected to one end of the frame spring, and the other end of the frame spring is fixedly connected to the wall of the frame slide groove.

[0013] Preferably, a baffle is also provided on the frame, which prevents the electrode plate or the ion membrane from slipping off to ensure that it can be stably installed on the frame assembly.

[0014] Preferably, the positioning assembly includes an adjusting part and a locking part, the adjusting part is connected to the upper slide, and two locking parts are arranged below the adjusting part, and each locking part is connected to a frame.

[0015] Preferably, the adjustment part includes a positioning shaft, the upper end of the positioning shaft is rotatably connected to the translation slider, the middle part is rotatably connected to the positioning box, and the lower end is fixedly connected to two shaft sprockets, each shaft sprocket is connected to an acceleration sprocket through a chain, and two mutually meshing steering bevel teeth are arranged under the acceleration sprocket, one of the steering bevel teeth is fixedly connected to the acceleration sprocket, and the other steering bevel tooth is fixedly connected to the large sprocket, and the acceleration sprocket, steering bevel teeth and large sprocket are rotatably connected in the positioning box.

[0016] Preferably, the locking part includes a positioning block, the positioning box is fixedly connected to the extension rod, both sides of the extension rod are fixedly connected to a fixed shaft, the fixed shaft is slidably connected to the positioning block, the fixed shaft is rotatably connected to the auxiliary wheel, the auxiliary wheel rolls in the positioning groove, the positioning groove is arranged on the frame, the large sprocket drives the small sprocket to rotate through the chain, the small sprocket is fixedly connected to the middle part of the positioning screw, the two ends of the positioning screw are respectively threadedly connected to a positioning block, the small sprocket and the positioning screw are rotatably connected to the extension rod.

[0017] Preferably, the walking part comprises a cylinder and a slide wheel, both ends of the upper slide are fixedly connected to the cylinder, and the output end of the cylinder is rotatably connected to the slide wheel.

[0018] Preferably, the translation part also includes a translation guide block, one side of the translation slider is slidably connected to one end of the translation guide block, and the other end of the translation guide block is slidably connected to the spiral groove on the translation screw shaft, the translation guide block is fixedly connected to one end of the guide block spring, and the other end of the guide block spring is fixedly connected to the translation slider, the translation spline shaft and the translation screw shaft are rotatably connected in the upper slide, and driving caps are provided at both ends of the upper slide, and the translation spline shaft and the translation screw shaft are controlled to rotate by the driving caps.

[0019] Preferably, the drive cap includes a translation sleeve, the middle part of which is rotatably connected to the upper slide, and one end of the translation sleeve extending into the upper slide is fixedly connected to the translation gear. A translation spring is arranged between the translation gear and the upper slide, and the translation gear and the translation sleeve are arranged outside the translation spline shaft. The translation spiral shaft is fixedly connected to the spiral shaft gear, and the spiral shaft gear can engage with the translation gear.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can install electrode plates or ion membranes of different sizes by setting a frame assembly, and there is no need to fix the electrode plates and ion membranes separately. The distance between the electrode plates or between the electrode plates and the ion membranes can be adjusted by the slide, and the electrode plates can be controlled to be to the left or to the right in conjunction with the positioning assembly, thereby arranging and forming different flow channels. When the electrode plate is as wide as the electrolytic cell, the height of the main bracket or the water level can also be adjusted to meet the electrolysis requirements of different sewage. The electrode plates and ion membranes can be fully inspected by lifting the main bracket, and a single electrode plate can be taken out and sent to the side of the electrolytic cell by the translation part of the upper slide, thereby facilitating subsequent inspection and maintenance work such as descaling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a structural schematic diagram of the frame assembly of the present invention; Figure 3 It is a structural schematic diagram of the framework of the present invention; Figure 4 It is a structural schematic diagram of the positioning assembly of the present invention; Figure 5 It is a schematic diagram of the internal structure of the positioning box of the present invention; Figure 6 It is a structural schematic diagram of the translation part of the present invention; Figure 7 It is a structural schematic diagram of the driving cap of the present invention; Figure 8 It is a structural schematic diagram of the translational screw shaft of the present invention; Fig. 9 It is a structural schematic diagram of the walking part of the present invention.

[0022] In the figure: 1, main bracket, 2, upper slide, 201, cylinder, 202, slide wheel, 203, translation spline shaft, 204, translation spiral shaft, 205, spiral shaft gear, 206, translation gear, 207, translation sleeve, 208, translation spring, 209, translation slider, 210, translation guide block, 211, guide block spring, 3, positioning assembly, 301, positioning shaft, 302, positioning box, 303, shaft sprocket, 304, acceleration sprocket, 305, steering bevel gear, 306, large sprocket, 307, small sprocket, 308, positioning screw, 309, positioning block, 310, extension rod, 311, fixed shaft, 312, auxiliary wheel, 4, frame, 401, baffle, 402, frame slider, 403, frame spring, 404, frame slide, 405, positioning groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-9 In order to solve the problem that the electrode plates and ion membranes in the existing electrolytic cells are mostly fixed, such installation method is not convenient for inspection and maintenance, and cannot be adjusted according to different sewage, the frame assembly can be used to install electrode plates or ion membranes of different sizes, without the need to fix the electrode plates and ion membranes separately, and the distance between the electrode plates or the electrode plates and the ion membranes can be adjusted by the slide 2, and the electrode plates can be controlled to be on the left or on the right with the positioning assembly 3, so as to form different flow channels. When the electrode plates are the same width as the electrolytic cell, the height of the main bracket 1 or the water level can also be adjusted to meet the electrolysis requirements of different sewage. The electrode plates and ion membranes can be fully inspected by lifting the main bracket 1, and a single electrode plate can be taken out and sent to the side of the electrolytic cell by the translation part of the upper slide 2, so as to facilitate subsequent inspection and maintenance work such as descaling. The present invention provides a technical solution: an electrochemical water treatment device, comprising a main support 1 and an upper slide 2, wherein two main supports 1 are symmetrically arranged, and the two main supports 1 are installed above the electrolytic cell, which can be lifted and lowered by means of a cylinder gantry crane or the like, and a plurality of upper slides 2 are slidably connected to the main support 1, and a frame assembly is arranged under each upper slide 2, wherein an electrode plate or an ion membrane is installed in the frame assembly, and each frame assembly is composed of two frames 4, and the two frames 4 can adjust relative positions to adapt to electrode plates or ion membranes of different sizes, and a positioning assembly 3 is installed on the frame assembly, and the positioning assembly 3 is connected to the upper slide 2, and the positioning assembly 3 can make one of the frames 4 relatively fixed with the position of the upper slide 2, thereby realizing different flow channel arrangements. In this application, electrical components such as motor cylinder push rods all adopt existing models. When in use, install the electrode plates and ion membranes into the frame assembly, use the upper slide 2 to slide on the main bracket 1 to adjust the spacing between the electrode plates, use the positioning component 3 in conjunction with the flow channel shape to determine the sewage conditions, and after the adjustment is completed, lower the main bracket 1 to complete the installation; when a single electrode plate needs to be replaced and repaired, use the upper slide 2 to flip the frame assembly where the corresponding electrode plate is located and then move it out for inspection and maintenance; when overall inspection and maintenance is required at the end of the year, lift the main bracket 1 to lift all the electrode plates and ion membranes for inspection and maintenance.

[0025] For the convenience of installing different electrode plates, the frame 4 is U-shaped, and both ends of each frame 4 are fixedly connected to a frame slider 402, and the frame 4 is provided with a frame slide 404 beside the frame slider 402, and the frame slider 402 is slidably connected to the frame slide 404 of another frame 4 in the same frame assembly, and the frame slider 402 is fixedly connected to one end of the frame spring 403, and the other end of the frame spring 403 is fixedly connected to the wall of the frame slide 404. The frame 4 is also provided with a baffle 401, and the baffle 401 prevents the electrode plate or ion membrane from slipping off to ensure that it can be firmly installed on the frame assembly. When it is necessary to install, push the two frames 4 to separate and open them back to back, and the two frames 4 drive the frame slider 402 to slide, and the frame slider 402 stretches the frame spring 403, and the motor plate or ion membrane is installed therein, and then the two frames 4 are released, and the two frames 4 are close to each other under the action of the spring, thereby clamping the electrode plate or ion membrane, achieving the purpose of adapting different electrode plates and ion membranes, and facilitating the subsequent replacement of the electrode plate or ion membrane.

[0026] In order to facilitate the adjustment of the electrode plate position to form different flow channels, a positioning assembly 3 is provided. The positioning assembly 3 includes an adjustment part and a locking part. The adjustment part is connected to the upper slide 2. Two locking parts are provided below the adjustment part, and each locking part is connected to a frame 4. The adjustment part includes a positioning shaft 301. The upper end of the positioning shaft 301 is rotatably connected to the translation slider 209, the middle part is rotatably connected to the positioning box 302, and the lower end is fixedly connected to two shaft sprockets 303. The positioning shaft 301 is positioned by a ball spring provided in the positioning box 302. In order to facilitate rotation and position determination, a handle is provided on the positioning shaft 301. Each shaft sprocket 303 is connected to an accelerating sprocket 304 through a chain. Two mutually meshing steering bevel teeth 305 are provided below the accelerating sprocket 304. One steering bevel tooth 305 is fixedly connected to the accelerating sprocket 304, and the other steering bevel tooth 305 is fixedly connected to the large sprocket 306. The accelerating sprocket 304, the steering bevel tooth 305, and the large sprocket 306 are rotatably connected in the positioning box 302. The locking part includes a positioning block 309, a positioning box 302 is fixedly connected to the extension rod 310 at the bottom, a fixed shaft 311 is fixedly connected to both sides of the extension rod 310, the positioning block 309 is slidably connected in the fixed shaft 311, the fixed shaft 311 is rotatably connected to the auxiliary wheel 312, the auxiliary wheel 312 rolls in the positioning groove 405, the positioning groove 405 is set on the frame 4, the large sprocket 306 drives the small sprocket 307 to rotate through the chain, the small sprocket 307 is fixedly connected to the middle of the positioning screw 308, and the two ends of the positioning screw 308 are respectively threadedly connected to a positioning block 309, the small sprocket 307 and the positioning screw 308 are rotatably connected in the extension rod 310. When the electrode plate needs to be brought close to one side of the electrolytic cell, the positioning shaft 301 is first rotated so that both locking parts are not in a locked state. At this time, the frame 4 that needs to be close to the cell wall is slid under the locking part on the side closest to the U-shaped opening, and then the extension rod 310 is continued to be rotated to lock the position of the frame 4. During this process, the positioning shaft 301 drives the shaft sprocket 303 to rotate, the shaft sprocket 303 drives the acceleration sprocket 304 to rotate, the acceleration sprocket 304 drives the steering bevel gear 305 to rotate, the two steering bevel gears 305 rotate synchronously, the steering bevel gear 305 drives the large sprocket 306 to rotate, and the large sprocket 306 drives the small sprocket 307 to rotate. The small sprocket 307 drives the positioning screw 308 to rotate, and the positioning screw 308 rotates to make the positioning block 309 slide in the extension rod 310. When the positioning block 309 is fully extended, it just abuts against the inner wall surface of the positioning groove 405, thereby forming a positioning. In order to achieve a better positioning effect, a rubber block can be provided on the positioning block 309 to increase the friction force, or a positioning hole can be provided at the corresponding position of the positioning groove 405 so that the positioning block 309 can be inserted therein. The two locking parts cannot be locked at the same time. If one side is in a locked state, the other side must be in an unlocked state. In the unlocked state, the frame 4 is difficult to launch and is assisted in sliding by the auxiliary wheel 312 when sliding relative to each other.

[0027] In order to facilitate the movement of the upper slide 2, a walking part is provided at both ends of the upper slide 2, and the walking part drives the upper slide 2 to slide on the main support 1. A translation part is also provided in the upper slide 2, and the translation part drives the frame assembly to move for maintenance. The walking part includes a cylinder 201 and a slide wheel 202. Both ends of the upper slide 2 are fixedly connected to the cylinder 201, and the output end of the cylinder 201 is rotatably connected to the slide wheel 202. When it is necessary to adjust the spacing between the electrode plates, the cylinder 201 is started, and the cylinder 201 drives the slide wheel 202 to extend until the slide wheel 202 touches the main support 1, and the cylinder 201 is continued to be started to lift the upper slide 2 away from the main support 1. At this time, the upper slide 2 can be moved. After moving to a suitable position, the cylinder 201 is retracted until the slide wheel 202 leaves the main support 1. At this time, the upper slide 2 is stably placed on the main support 1, and the adjustment is completed.

[0028] In order to facilitate the inspection and maintenance of a single electrode plate, a translation part is provided, which includes a translation spline shaft 203 and a translation screw shaft 204. The translation spline shaft 203 is slidably connected to a translation slider 209, one side of the translation slider 209 is slidably connected to one end of a translation guide block 210, and the other end of the translation guide block 210 is slidably connected to a spiral groove on the translation screw shaft 204. The translation guide block 210 is fixedly connected to one end of a guide block spring 211, and the other end of the guide block spring 211 is fixedly connected to the translation slider 209. The translation spline shaft 203 and the translation screw shaft 204 are rotatably connected to the upper slide 2. Drive caps are provided at both ends of the upper slide 2, and the rotation of the translation spline shaft 203 and the translation screw shaft 204 is controlled by the drive caps. The driving cap includes a translation sleeve 207, the middle part of which is rotatably connected to the upper slide 2, and one end of the translation sleeve 207 extending into the upper slide 2 is fixedly connected to the translation gear 206. A translation spring 208 is arranged between the translation gear 206 and the upper slide 2. One end of the translation spring 208 is always rotatably connected to the translation gear 206, and the other end is fixedly connected to the upper slide 2, so that the translation gear 206 is meshed with the spiral shaft gear 205 in a state without being subjected to force. The translation gear 206 and the translation sleeve 207 are sleeved on the translation gear 206. In addition to the spline shaft 203, the splines on the spline shaft 203 are divided into three sections. The two sections at both ends are respectively slidably connected to the translation gears 206 and the translation sleeves 207 on the left and right sides. The middle spline is slidably connected to the translation slider 209. A bracket is provided between the two adjacent sections of the spline to lift the spline shaft 203 so that the spline shaft 203 can only rotate but not slide in the upper slide 2. The spiral shaft gear 205 is fixedly connected to the translation spiral shaft 204, and the spiral shaft gear 205 can engage with the translation gear 206.When in use, first press the translation sleeve 207, the translation sleeve 207 drives the translation gear 206 to move, and the translation gear 206 stretches the translation spring 208. During this process, the translation gear 206, the spline sleeve in the translation sleeve 207 and the spline sleeve at the end of the spline shaft 203, the translation gear 206 does not mesh with the spiral shaft gear 205. At this time, the translation sleeve 207 is rotated, the translation sleeve 207 drives the translation gear 206 to rotate, the translation gear 206 drives the spline shaft 203 to rotate, the spline shaft 203 drives the translation slider 209 to rotate, the translation slider 209 drives the positioning assembly 3 to rotate, the positioning assembly 3 drives the frame assembly to rotate, the frame assembly drives the electrode plate to rotate, the electrode plate rotates 180° around the spline shaft 203, that is, the electrode plate rotates from the bottom of the upper slide 2 to the top of the upper slide 2, and the translation guide block 210 on the translation slider 209 encounters an obstacle and is retracted by force during this process, thereby compressing the guide block spring. 211. When the electrode plate has completed its rotation, the translation guide block 210 is inserted into the spiral groove on the translation screw shaft 204. At this time, the translation sleeve 207 is loosened, and the translation sleeve 207 is reset under the action of the spring. The translation sleeve 207 is rotated forward or reversed as needed, so that the electrode plate moves to one side. The translation sleeve 207 drives the translation gear 206 to rotate, and the translation gear 206 drives the spiral shaft gear 205 to rotate. The rotation of the spiral shaft gear 205 causes the translation guide block 210 to move. The translation guide block 210 drives the translation slider 209 to move, and the translation slider 209 drives the electrode plate to move to a suitable position for maintenance. When the maintenance is completed, the reverse translation sleeve 207 first moves the electrode plate to its original position and then flips the electrode plate back to the electrolytic cell. In this process, in order to ensure that the electrode plates on both sides will not be hit, the position of the upper slide 2 on the main bracket 1 can be moved to ensure sufficient flipping distance.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrochemical water treatment device, comprising a main support (1) and an upper slide (2), characterized in that: The main brackets (1) are symmetrically arranged with two of them. A plurality of upper slides (2) are slidably connected to the main brackets (1). A frame assembly is arranged under each upper slide (2). An electrode plate or an ion membrane is installed in the frame assembly. Each frame assembly is composed of two frames (4). The two frames (4) can adjust their relative positions to accommodate electrode plates or ion membranes of different sizes. A positioning assembly (3) is installed on the frame assembly. The positioning assembly (3) is connected to the upper slide (2). The positioning assembly (3) can fix the position of one of the frames (4) relative to the upper slide (2), thereby realizing different flow channel arrangements. The upper slide (2) is provided with walking parts at both ends, and the walking parts drive the upper slide (2) to slide on the main support (1); the upper slide (2) is also provided with a translation part, and the translation part drives the frame assembly to move for maintenance; The translation part comprises a translation spline shaft (203) and a translation spiral shaft (204); the translation spline shaft (203) is slidably connected to a translation slider (209); the lower end of the translation slider (209) is connected to a positioning assembly (3); the translation spiral shaft (204) cooperates with the translation spline shaft (203) to enable the translation slider (209) to drive the electrode plate to move to the edge of the electrolytic cell.

2. An electrochemical water treatment device according to claim 1, characterized in that: The frame (4) is U-shaped, and both ends of each frame (4) are fixedly connected to a frame slider (402). The frame (4) is provided with a frame slide groove (404) next to the frame slider (402). The frame slider (402) is slidably connected to the frame slide groove (404) of another frame (4) in the same frame assembly. The frame slider (402) is fixedly connected to one end of a frame spring (403), and the other end of the frame spring (403) is fixedly connected to the wall surface of the frame slide groove (404).

3. An electrochemical water treatment device according to claim 2, characterized in that: The frame (4) is also provided with a baffle (401), which prevents the electrode plate or the ion membrane from slipping off, so as to ensure that they can be stably mounted on the frame assembly.

4. The electrochemical water treatment device according to claim 1, characterized in that: The positioning assembly (3) comprises an adjusting part and a locking part, the adjusting part is connected to the upper slide (2), two locking parts are arranged below the adjusting part, and each locking part is connected to a frame (4).

5. An electrochemical water treatment device according to claim 4, characterized in that: The adjustment portion comprises a positioning shaft (301), the upper end of the positioning shaft (301) is rotatably connected to a translation slider (209), the middle part is rotatably connected to a positioning box (302), and the lower end is fixedly connected to two shaft sprockets (303), each shaft sprocket (303) is connected to an accelerating sprocket (304) via a chain, and two mutually meshing steering bevel teeth (305) are arranged under the accelerating sprocket (304), one steering bevel tooth (305) is fixedly connected to the accelerating sprocket (304), and the other steering bevel tooth (305) is fixedly connected to a large sprocket (306), and the accelerating sprocket (304), the steering bevel teeth (305), and the large sprocket (306) are rotatably connected in the positioning box (302).

6. An electrochemical water treatment device according to claim 5, characterized in that: The locking portion comprises a positioning block (309); the positioning box (302) is fixedly connected to the extension rod (310) at the bottom; a fixed shaft (311) is fixedly connected to both sides of the extension rod (310); the positioning block (309) is slidably connected in the fixed shaft (311); the fixed shaft (311) is rotatably connected to the auxiliary wheel (312); the auxiliary wheel (312) rolls in the positioning groove (405); the positioning groove (405) is arranged on the frame (4); the large sprocket (306) drives the small sprocket (307) to rotate through a chain; the small sprocket (307) is fixedly connected to the middle of the positioning screw (308); the two ends of the positioning screw (308) are respectively threadedly connected to a positioning block (309); the small sprocket (307) and the positioning screw (308) are rotatably connected to the extension rod (310).

7. The electrochemical water treatment device according to claim 1, characterized in that: The walking part comprises a cylinder (201) and a carriage wheel (202); both ends of the upper carriage (2) are fixedly connected to the cylinder (201); and the output end of the cylinder (201) is rotatably connected to the carriage wheel (202).

8. The electrochemical water treatment device according to claim 1, characterized in that: The translation part also includes a translation guide block (210), one side of the translation slider (209) is slidably connected to one end of the translation guide block (210), and the other end of the translation guide block (210) is slidably connected to the spiral groove on the translation screw shaft (204), the translation guide block (210) is fixedly connected to one end of the guide block spring (211), and the other end of the guide block spring (211) is fixedly connected to the translation slider (209), the translation spline shaft (203) and the translation screw shaft (204) are rotatably connected to the upper slide (2), and driving caps are provided at both ends of the upper slide (2), and the translation spline shaft (203) and the translation screw shaft (204) are controlled to rotate by the driving caps.

9. An electrochemical water treatment device according to claim 8, characterized in that: The driving cap comprises a translation sleeve (207), the middle part of the translation sleeve (207) is rotatably connected to the upper slide (2), one end of the translation sleeve (207) extending into the upper slide (2) is fixedly connected to the translation gear (206), a translation spring (208) is arranged between the translation gear (206) and the upper slide (2), the translation gear (206) and the translation sleeve (207) are sleeved outside the translation spline shaft (203), the translation spiral shaft (204) is fixedly connected to the spiral shaft gear (205), and the spiral shaft gear (205) can mesh with the translation gear (206).

Images