A cathode module and an electrochemical device

Abstract

The present invention discloses a cathode module, including: a base and a liquid collecting pipe, wherein the base is provided with a plurality of mounting holes, the liquid collecting pipe is embedded in the base and connected to any mounting hole, the water outlet of the liquid collecting pipe extends out of the base, and the base is provided with a liquid inlet and a backwash outlet; a guide tube, wherein the side wall is provided with a plurality of guide holes, and a guide tube is fixedly connected in any mounting hole; an elastic layer, which is spirally made of conductive wire to form an electrolytic cathode, and the elastic layer is sleeved outside the guide tube and the first end is fixed to the base; a clamping plate, wherein the opening is sleeved on the outer wall of the guide tube to compress or stretch the elastic layer, and the elastic layer includes a working position and a cleaning position, and the elastic layer is compressed when it is in the working position and stretched when it is in the cleaning position. The present invention adjusts the degree of compression of the elastic layer on the outer periphery of the guide tube through the clamping plate, so as to filter the fluid to be treated through the elastic layer, and has the dual functions of electrochemical treatment and filtration, and at the same time, the flushing of the elastic layer is convenient and efficient. The present invention also discloses an electrochemical device.

Description

Technical Field

[0001] The present invention relates to the technical field of electrochemical water treatment equipment, and in particular to a cathode module and an electrochemical device. Background Art

[0002] Electrochemical water treatment technology refers to the use of electrode reactions and related processes in a specific electrochemical reactor under the action of an external electric field to effectively remove pollutants such as hardness, heavy metals, suspended matter, colloids, bacteria, algae, color, nitrates, etc. in water through the combined effects of direct and indirect oxidation-reduction, coagulation and flocculation, adsorption degradation and synergistic transformation. There is no need to add chemicals to the water during the reaction process, and the water purification efficiency is high without secondary pollution. Therefore, electrochemical water treatment has incomparable advantages over chemical water treatment.

[0003] In order to optimize the treatment efficiency of the electrochemical water treatment process, the prior art adopts a cathode structure with a composite mesh structure, in which several layers of stainless steel woven meshes with different apertures are stacked, connected and fixed to weave one-dimensional electrodes into two-dimensional and three-dimensional structures, thereby changing the current density and the flow rate of water to optimize the water treatment performance. However, due to the large number of grid points and different aperture types in the above structure, during the water treatment process, attachments of various sizes attach to the cathode mesh structure to form dirt, which is difficult to effectively clean by physical methods. Long-term operation will reduce the treatment efficiency of the cathode structure due to the clogging of the mesh by dirt.

[0004] Therefore, how to improve the treatment efficiency in the electrochemical water treatment process and to conveniently clean the dirt attached near the cathode is an urgent problem to be solved by technicians in this field. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a cathode module to improve the treatment efficiency in the electrochemical water treatment process and to facilitate cleaning of dirt attached to the cathode.

[0006] Another object of the present invention is to provide an electrochemical device comprising the cathode module.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A cathode module, comprising:

[0009] A base and a liquid collecting pipe, wherein the base is provided with a plurality of mounting holes, the liquid collecting pipe is embedded in the base and connected with any of the mounting holes, the water outlet of the liquid collecting pipe extends out of the base, and the base is provided with a liquid inlet and a backwash discharge port;

[0010] A guide tube, the side wall of which is provided with a plurality of guide holes communicating with the inside and outside of the guide tube, the guide tube is clamped and fixed in any of the mounting holes, and the guide tube is communicated with the mounting holes;

[0011] An elastic layer, which is made of a conductive wire wound in a spiral manner to form a cathode in the electrolysis process, wherein the elastic layer is sleeved outside the guide tube, and a first end of the elastic layer is fixedly connected to the base;

[0012] A compression plate, with a hole and sleeved on the outer wall of the guide tube, the compression plate is fixedly connected to the second end of the elastic layer to compress or stretch the elastic layer, the elastic layer at least includes a working position and a cleaning position, the elastic layer is compressed by the compression plate when it is in the working position, and the fluid to be treated passes through the wire gap of the elastic layer to reach the guide hole and enter the guide tube;

[0013] When the elastic layer is located at the cleaning position, it is stretched by the pressing plate, and the cleaning liquid flows through the guide tube and is sprayed out from the guide hole to wash the wire gaps of the elastic layer and the pollutants attached to the wire.

[0014] Preferably, in the cathode module, when the elastic layer is in the working position, the compression degree of the elastic layer is adjusted by the pressing plate to adjust the wire gap of the elastic layer.

[0015] Preferably, in the cathode module, the first ends of the plurality of elastic layers are fixed to the conductor area on the base, and one end of the conductor area of ​​the base extending out of the electrolytic cell is conductively connected to a terminal.

[0016] Preferably, in the cathode module, an elastic bag is provided in the guide tube, and the elastic bag is sealed with an inflation device or a water injection device. When the elastic layer is located at the working position, the elastic bag is inflated or injected with water to expand and block the guide holes without the elastic layer on the periphery.

[0017] Preferably, in the above-mentioned cathode module, an inner elastic layer and an outer elastic layer with different diameters are sleeved on the outer periphery of a single guide tube, the gap between the inner and outer elastic layers is 1 / 6 to 1 / 2 of the gap of the wires of the outer elastic layer, the compression degrees of the inner elastic layer and the outer elastic layer are different, when the inner elastic layer is compressed, the gap of the wires of the outer elastic layer is 2-6 times the wire diameter distance of the outer elastic layer wires.

[0018] Preferably, in the cathode module, the guide holes are evenly arranged in the circumferential direction of the side wall of the guide tube, and are sparsely arranged downward and densely arranged upward in the axial direction of the side wall of the guide tube.

[0019] Preferably, in the cathode module, the guide rods of the plurality of pressing plates are driven by a single drive shaft, and the drive shaft is driven by a cylinder, a screw or a hydraulic cylinder.

[0020] Preferably, in the above cathode module, the diameter of the conductive wire is 0.02 mm-2.00 mm.

[0021] Preferably, in the cathode module, the wire material is carbon steel, stainless steel, titanium, nickel or copper.

[0022] An electrochemical device comprises an anode module and a cathode module as described in any one of the above embodiments.

[0023] Preferably, in the above electrochemical device, the plurality of elastic layers in the cathode module are arranged in a circular shape, and the anode module is disposed at the center of the plurality of elastic layers.

[0024] Preferably, in the above electrochemical device, the plurality of elastic layers in the cathode module are arranged in a straight line, and the anode module is arranged in parallel with the plurality of elastic layers.

[0025] It can be seen from the above technical scheme that the cathode module provided by the present invention includes a base, a liquid collecting pipe, a guide tube, an elastic layer and a clamping plate, wherein a plurality of mounting holes are opened on the base, and the liquid collecting pipe is embedded and installed in the base, and the liquid collecting pipe is connected to any mounting hole, that is, the liquid collecting pipe is used as a main pipe, and a plurality of mounting holes are connected as branch pipes to form a pipe network structure. At the same time, the water outlet of the liquid collecting pipe extends out of the base to facilitate the liquid collecting pipe to discharge the fluid. During backwashing, the fluid can be input into the liquid collecting pipe so that the fluid reaches the position of each mounting hole. Correspondingly, a liquid inlet and a backwash discharge port are opened on the base to cooperate with the liquid collecting pipe. The water inlet works; the guide tube is used for fluid to pass through, specifically, the guide tube is provided with a plurality of guide holes connecting the inner and outer areas of the guide tube on the side wall, and a guide tube is fixedly arranged in each mounting hole on the base, and the side of the guide tube inserted into the mounting hole is connected with the mounting hole, that is, the inner area of ​​the guide tube is connected with the liquid collecting pipe, in particular, the cathode module provided by the present invention is also provided with an elastic layer on the outside of the guide tube, the elastic layer is made of a spirally wound conductive wire and is connected to a power supply to form a cathode end, the elastic layer is made in a manner that enables it to have elastic deformation ability in the axial direction, and the first end of the elastic layer is connected to the bottom The seat is fixedly connected to fix the position of the elastic layer, and a compression plate is also provided corresponding to the elastic layer. The compression plate has a hole and is sleeved on the outer wall of the guide tube. At the same time, the compression plate is fixedly connected to the second end of the elastic layer to compress or stretch the elastic layer. The elastic layer will pass through at least two positions, the working position and the cleaning position, under the drive of the compression plate. Specifically, when the elastic layer is in the working position, the elastic layer is compressed by the compression plate. At this time, the fluid to be treated will pass through the wire gap of the elastic layer, and then enter the guide tube through the guide hole, and be collected and transported through the liquid collecting pipe and discharged from the water outlet of the liquid collecting pipe. All the liquid to be treated is in the belt While the surface of the polar elastic layer is electrochemically treated, impurities are filtered out through the wire gaps of the elastic layer. Compared with the simple electrochemical treatment method, the physical removal method of impurities is added, and the treatment process is more efficient. When the elastic layer is in the cleaning position, the elastic layer is stretched by the clamping plate, and the cleaning liquid is input from the water inlet of the liquid collecting pipe and sprayed through the guide hole of the guide cylinder to flush the wire gaps of the elastic layer. Since the elastic layer is in a stretched state, the wire gaps are larger, and the cleaning liquid can completely flush any wire gap. Compared with the existing technology, the impurities attached to the elastic layer can be removed more fully. The cathode module provided by the present invention is structured by arranging a base, a guide tube and a liquid collecting pipe, so as to conveniently collect the treated liquid and inject the flushing liquid through the water outlet of the liquid collecting pipe. At the same time, an elastic layer made of wound wire is sleeved on the outside of the guide tube, and the wire gap of the elastic layer is controlled by a clamping plate, so that the liquid to be treated can be filtered with a preset accuracy through the elastic layer, and at the same time, the impurities to be treated are forced to flow through the polarity treatment area in a parallel current direction, or the elastic layer is completely flushed of the attached impurities, so that the treatment process of the liquid to be treated is more efficient, and the cleaning is convenient and sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the cathode module structure provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the structure of an electrochemical device provided in an embodiment of the present invention;

[0029] Among them, 10 is a base, 110 is a liquid inlet, 20 is a liquid collecting pipe, 210 is a water inlet, 30 is a guide tube, 310 is a guide hole, 40 is an elastic layer, 50 is a pressing plate, 510 is a guide rod, 520 is a driving shaft, 60 is a backwash discharge port, 610 is a terminal, and 70 is an elastic bag;

[0030] 100 is a cathode module, and 200 is an anode module. DETAILED DESCRIPTION

[0031] The core of the present invention is to disclose a cathode module to improve the treatment efficiency in the electrochemical water treatment process and to conveniently clean the dirt attached near the cathode.

[0032] Another object of the present invention is to disclose an electrochemical device comprising the cathode module.

[0033] In order to make the technical personnel in this field better understand the scheme of the present invention, the embodiments of the present invention are described below with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the content of the invention recorded in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to the solutions required as the solutions of the invention recorded in the claims.

[0034] like Figure 1As shown, the cathode module provided by the embodiment of the present invention includes a base 10, a liquid collecting pipe 20, a guide tube 30, an elastic layer 40 and a pressing plate 50, wherein a plurality of mounting holes are provided on the base 10, and the liquid collecting pipe 20 is embedded and installed in the base 10, and the liquid collecting pipe 20 is connected to any mounting hole, that is, the liquid collecting pipe 20 is used as a main pipe, and a plurality of mounting holes are used as branch pipes to be connected to form a pipe network structure, and at the same time, the water inlet 210 of the liquid collecting pipe 20 is extended out of the base 10 to facilitate the liquid collecting pipe 20 to discharge fluid, or to input fluid into the liquid collecting pipe 20, and the corresponding base 10 is provided with a liquid inlet 110 and a backwash discharge port 60 to cooperate with the water inlet 210 of the liquid collecting pipe 20 to operate, and the fluid to be treated is input from the liquid inlet 110 and discharged from the water inlet 210 to complete the electrochemical treatment process, and the cleaning fluid for cleaning the equipment is discharged from the water inlet 210. 0 is input and discharged from the backwash discharge port 60 to clean the equipment parts; the guide tube 30 is used for fluid to pass through, specifically, the guide tube 30 is provided with a plurality of guide holes 310 connecting the inner and outer areas of the guide tube 30 on the side wall, and a guide tube 30 is fixedly arranged in each mounting hole on the base 10, and the side of the guide tube 30 that is inserted into the mounting hole is connected to the mounting hole, that is, the internal area of ​​the guide tube 30 is connected to the liquid collecting pipe 20. In particular, the cathode module provided in the embodiment of the present invention is also provided with an elastic layer 40 on the outside of the guide tube 30, the elastic layer 40 is made of spirally wound conductive wire and connected to a power supply to form a cathode end, the elastic layer 40 is manufactured in such a way that it has elastic deformation ability in the axial direction, and the first end of the elastic layer 40 is fixedly connected to the base 10 to fix the position of the elastic layer 40.

[0035] It should be noted that the elastic layer 40 is wound with wires. Therefore, when the fluid passes through each layer of wires of the elastic layer 40, each layer of wires is approximately regarded as an electrode with a one-dimensional structure relative to the fluid. The adhesion of the sediment in the treated liquid to each layer of wires is weak. The bubbles generated during the electrolysis process further reduce the adhesion of the sediment on the one-dimensional electrode. Compared with three-dimensional electrodes such as shavings iron, sponge nickel, and carbon fiber, the elastic layer 40 provided in the embodiment of the present invention is easier to clean.

[0036] It should be further explained that the elastic layer 40 is formed by spirally winding a conductive wire into a spring or tension spring structure.

[0037] A compression plate 50 is also provided corresponding to the elastic layer 40. The compression plate 50 has a hole and is sleeved on the outer wall of the guide tube 30. The hole of the compression plate 50 allows the guide tube 30 to pass through but will block the limiting elastic layer 40. At the same time, the compression plate 50 is fixedly connected to the second end of the elastic layer 40 to compress or stretch the elastic layer 40. The elastic layer 40, driven by the compression plate 50, will pass through at least two positions, the working position and the cleaning position. Specifically, when the elastic layer 40 is in the working position, the elastic layer 40 is compressed by the compression plate 50. At this time, the fluid to be treated will pass through the wire gap of the elastic layer 40, and then pass through the guide hole 310 to enter the guide tube 30, and be collected and transported through the collecting pipe 20 and discharged from the water outlet 210 of the collecting pipe 20. The liquid to be treated is While the surface of the elastic layer 40 with polarity is electrochemically treated, impurities are filtered out through the wire gaps of the elastic layer 40. Compared with the simple electrochemical treatment method, the physical removal method of impurities is added, and the treatment process is more efficient; when the elastic layer 40 is located in the cleaning position, the liquid inlet 110 is closed, the elastic layer 40 is stretched by the clamping plate 50, and the cleaning liquid is input from the water inlet 210 of the liquid collecting pipe 20, and is sprayed out through the guide hole 310 of the guide tube 30 to flush the wire gaps of the elastic layer 40, and discharged from the backwash discharge port 60. Since the elastic layer 40 is in a stretched state, the wire gaps are larger, and the cleaning liquid can completely flush any wire gap. Compared with the prior art, the impurities attached to the elastic layer 40 can be removed more fully.

[0038] At the same time, it should be noted that, since the cathode module provided by the embodiment of the present invention uses the elastic layer 40 supported by the spirally wound conductive wire as the cathode reaction end, and the elastic layer 40 is sleeved on the outer periphery of the guide tube 30, when the fluid to be treated enters the guide tube 30 through the guide hole 310, its flow direction is approximately parallel to the wound wire of the elastic layer 40, and the fluid to be treated will pass through the elastic layer 40 and enter the guide tube 30. In the above structure, the flow direction of the fluid to be treated is approximately parallel to the direction of the electric field current, and all the fluid to be treated will be forced to pass through the elastic layer 40, so that the reactants, especially bicarbonate (repelled from the cathode), have a greater chance of reacting with the cathode product hydroxyl, and a relatively smaller chance of reacting with the anode product hydrogen ion, and also reduce the chance of neutralization of the anode product hydrogen ion and the cathode product hydroxide, thereby improving the current efficiency and reducing energy consumption.

[0039] In addition, in the cathode module provided by the embodiment of the present invention, the surface area of ​​the elastic layer 40 is large, making it easier for scale to precipitate. At the same time, after the scale is attached to the surface of the elastic layer 40, its specific surface area and the number of crystal nuclei will be increased, making it easier for subsequent scale to crystallize and precipitate, thereby increasing the deposition rate of scale in the fluid to be treated and facilitating the treatment of scale. The cathode module provided by the embodiment of the present invention is provided with a structure of a base 10, a guide tube 30 and a liquid collecting pipe 20, so as to conveniently collect the treated liquid through the water inlet 210 of the liquid collecting pipe 20 and inject the flushing liquid. At the same time, an elastic layer 40 made of wire winding is sleeved on the outside of the guide tube 30, and the wire gap of the elastic layer 40 is controlled by the clamping plate 50, so that the liquid to be treated can be filtered with a preset accuracy through the elastic layer 40, or the elastic layer 40 can be completely flushed of attached impurities, so that the treatment process of the liquid to be treated is more efficient, and the cleaning is convenient and sufficient.

[0040] In order to further optimize the above technical solution, in the cathode module provided in the embodiment of the present invention, the compression amount of the elastic layer 40 when it is in the working position is adjustable. Specifically, by driving the clamping plate 50 to adjust the compression degree of the elastic layer 40 in the working position, the wire gap of the elastic layer 40 is adjusted to achieve the adjustment of the filtration accuracy of the elastic layer 40 for the treated fluid, so that the cathode module provided in the embodiment of the present invention is suitable for a variety of water treatment conditions.

[0041] Furthermore, several elastic layers 40 can be connected to the power supply individually or indirectly. In order to simplify the structure of the cathode module, in a specific embodiment of the present invention, the first ends of the multiple elastic layers 40 are fixedly arranged on the same conductor area on the base 10, and the end of the conductor area extending out of the electrolytic cell is conductively connected to the terminal 610, so that there will be no problem of confusing wiring of the elastic layer 40 in the base 10.

[0042] Considering that the elastic layer 40 is in a stretched state when it is in the cleaning position and in a compressed state when it is switched to the working position, if the guide hole 310 is fully opened along the axial direction of the guide tube 30, there will be some guide holes 310 that are not blocked by the elastic layer 40 in a compressed state, thereby weakening the filtering effect of the elastic layer 40 on the treated fluid. Therefore, in a preferred embodiment of the present invention, an elastic bag 70 is provided in the guide tube 30. The elastic bag 70 is specifically arranged at one end of the guide tube 30 away from the fixed point of the elastic layer 40, and the elastic bag 70 is sealed and connected to an inflation device or a water injection device. When the elastic layer 40 is in the working position, the elastic bag 70 is inflated or expanded with water to block the guide holes 310 wrapped by the elastic layer 40 in a non-compressed state on the periphery, so that the treated fluid can only pass through the wire gaps of the elastic layer 40 in a compressed state, and enter the guide tube 30 through the guide holes 310 after being filtered.

[0043] In order to further optimize the above technical solution, in a specific embodiment of the present invention, the outer periphery of a single flow guide tube 30 is sleeved with an inner elastic layer and an outer elastic layer with different diameters, and the compression degrees of the inner elastic layer and the outer elastic layer can be adjusted separately to perform multi-stage filtration on the fluid to be treated during the electrochemical treatment. Preferably, the gap between the inner and outer elastic layers is 1 / 6 to 1 / 2 of the gap between the wires of the outer elastic layer. The compression degrees of the inner elastic layer and the outer elastic layer are different. When the inner elastic layer is compressed, the gap between the wires of the outer elastic layer is 2-6 times the wire diameter of the outer elastic layer. At the same time, the compression degree of the outer layer is weak, and it will be in a vibrating state under the impact of the fluid. The electrolysis product is easier to diffuse in the fluid, and at the same time, the collision probability between the substance to be treated and the electrode is increased, thereby improving the treatment efficiency.

[0044] Furthermore, in order to improve the uniformity of the flow of the treated fluid into the guide tube 30, in a specific embodiment of the present invention, the guide holes 310 are evenly arranged on the side wall of the guide tube 30. Specifically, a plurality of guide holes 310 are evenly arranged in the circumferential direction of the side wall of the guide tube 30, and the guide holes 310 on the axial side wall of the guide tube 30 are arranged in a sparse lower and dense upper arrangement. It should be noted that since the cleaning fluid is introduced into the guide tube 30 from the bottom, the flow rate at the top of the guide tube 30 will be smaller than the flow rate at the bottom. The axial guide holes 310 on the side wall of the guide tube 30 are arranged in a sparse lower and dense upper manner, which can improve the uniformity of water flow in various areas of the guide tube 30.

[0045] Furthermore, each guide tube 30 is correspondingly provided with a clamping plate 50. For the convenience of driving, the guide rods 510 of the plurality of clamping plates 50 are driven by a single driving shaft 520, and the driving shaft 520 is driven by a cylinder, a screw rod or a hydraulic cylinder.

[0046] Furthermore, the diameter of the conductive wire provided in the embodiment of the present invention is 0.02 mm-2.00 mm, so as to ensure that the single-layer wire has an approximately one-dimensional structure, thereby reducing the adhesion of impurities to be processed.

[0047] Furthermore, in the cathode module provided in the embodiment of the present invention, the material of the wire is carbon steel, stainless steel, titanium, nickel or copper, or it can be plastic with carbon steel, stainless steel, titanium, nickel or copper as the base material and a special coating on the surface.

[0048] like Figure 2 As shown, an embodiment of the present invention further provides an electrochemical device, which includes an anode module and a cathode module provided by any of the above embodiments.

[0049] Furthermore, in a specific embodiment of the present invention, the multiple elastic layers in the cathode module are arranged in a circular shape, and the corresponding anode is disposed at the center of the multiple elastic layers to form an electrochemical treatment module.

[0050] Furthermore, in another specific embodiment of the present invention, the plurality of elastic layers in the cathode module are arranged in a straight line, and the anode module and the plurality of elastic layers are arranged in parallel to form an electrochemical treatment module.

[0051] The terms "first" and "second" in the specification and claims of the present invention and the above drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0052] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cathode module, characterized in that: include: A base (10) and a liquid collecting pipe (20), wherein the base (10) is provided with a plurality of mounting holes, the liquid collecting pipe (20) is embedded in the base (10) and connected to any of the mounting holes, a water outlet (210) of the liquid collecting pipe (20) extends out of the base (10), and the base (10) is provided with a liquid inlet (110) and a backwash discharge port (60); A flow guide tube (30) has a side wall provided with a plurality of flow guide holes (310) communicating with the inside and outside of the flow guide tube (30); the flow guide tube (30) is clamped and fixed in any of the mounting holes, and the flow guide tube (30) is communicated with the mounting holes; An elastic layer (40) is made of a conductive wire wound in a spiral manner to form a cathode in the electrolysis process, the elastic layer (40) is sleeved outside the guide tube (30), and a first end of the elastic layer (40) is fixedly connected to the base (10); A compression plate (50) having a hole therein and being sleeved on the outer wall of the guide tube (30); the compression plate (50) being fixedly connected to the second end of the elastic layer (40) to compress or stretch the elastic layer (40); the elastic layer (40) at least comprising a working position and a cleaning position; when the elastic layer (40) is located at the working position, it is compressed by the compression plate (50); the fluid to be treated passes through the wire gap of the elastic layer (40) to reach the guide hole (310) and enters the guide tube (30); When the elastic layer (40) is located at the cleaning position, it is stretched by the pressing plate (50), and the cleaning liquid flows through the guide tube (30) and is sprayed out from the guide hole (310) to flush the wire gaps of the elastic layer (40) and the pollutants attached to the wires.

2. The cathode module according to claim 1, characterized in that When the elastic layer (40) is in the working position, the compression degree of the elastic layer (40) is adjusted by the pressing plate (50) to adjust the wire gap of the elastic layer (40).

3. The cathode module according to claim 1, characterized in that: The first ends of the plurality of elastic layers (40) are fixed to a conductor area on the base (10), and one end of the conductor area of ​​the base (10) extending out of the electrolytic cell is conductively connected to a terminal post (610).

4. The cathode module according to claim 1, characterized in that: An elastic bag (70) is arranged inside the guide tube (30), and the elastic bag (70) is sealedly connected to an inflation device or a water injection device. When the elastic layer (40) is located at the working position, the elastic bag (70) is inflated or injected with water to expand and block the guide hole (310) without the elastic layer (40) on the periphery.

5. The cathode module according to claim 1, characterized in that: An inner elastic layer and an outer elastic layer with different diameters are sleeved on the outer circumference of a single guide tube (30); the gap between the inner and outer elastic layers is 1 / 6 to 1 / 2 of the gap between the wires of the outer elastic layer; the compression degrees of the inner elastic layer and the outer elastic layer are different; when the inner elastic layer is compressed, the gap between the wires of the outer elastic layer is 2 to 6 times the diameter of the wires of the outer elastic layer.

6. The cathode module according to claim 1, characterized in that: The guide holes (310) are evenly arranged in the circumferential direction of the side wall of the guide tube (30), and are sparsely arranged downward and densely arranged upward in the axial direction of the side wall of the guide tube (30).

7. The cathode module according to claim 1, characterized in that: The guide rods (510) of the plurality of pressing plates (50) are driven by a single driving shaft (520), and the driving shaft (520) is driven by a cylinder, a screw rod or a hydraulic cylinder.

8. The cathode module according to claim 1, characterized in that: The diameter of the conductive wire is 0.02mm-2.00mm.

9. The cathode module according to claim 1, characterized in that: The conductive wire is made of carbon steel, stainless steel, titanium, nickel or copper.

10. An electrochemical device, characterized in that: It comprises an anode module (200) and a cathode module (100) according to any one of claims 1 to 9.

11. The electrochemical device according to claim 10, characterized in that The plurality of elastic layers (40) in the cathode module (100) are arranged in a circular shape, and the anode module (200) is arranged at the center of the plurality of elastic layers (40).

12. The electrochemical device according to claim 10, characterized in that The plurality of elastic layers (40) in the cathode module (100) are arranged in a straight line, and the anode module (200) is arranged in parallel with the plurality of elastic layers (40).

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