Electrochemical water treatment device

Abstract

The application is suitable for the technical field of electrochemical wastewater treatment, and provides an electrochemical circulating water treatment device.The device comprises a device main body, a plurality of cathode units and anode units are arranged in the device main body, the cathode units and the anode units are arranged at intervals in the device main body, the cathode units and the anode units are arranged along the length direction of the device main body, the cathode units and the anode units are plate-shaped structures, a plurality of flow channels are arranged on the cathode units and the anode units, the flow channels on the cathode units are arranged staggeredly with the flow channels on the adjacent anode units, and the plurality of cathode units are reciprocally slidably arranged in the device main body along the width direction of the device main body; a filter screen channel is arranged above the device main body and is used for inputting filtered wastewater into the device main body; a sludge removal tank is arranged at the bottom of the device main body and is used for removing sludge generated in the treatment process of the device main body; and a bubble removal mechanism is installed on the device main body.

Description

Technical Field

[0001] This invention relates to the field of electrochemical wastewater treatment technology, specifically to an electrochemical circulating water treatment device. Background Technology

[0002] Wastewater treatment is the process of separating pollutants from wastewater or converting them into harmless substances, thereby purifying the wastewater. Wastewater treatment is mainly divided into four methods: physical wastewater treatment, chemical wastewater treatment, physicochemical wastewater treatment, and biological wastewater treatment.

[0003] With the development of global industry and the scarcity of water resources, industrial circulating water treatment has become an important part of production in industries such as petrochemicals, energy, metallurgy, power, coal chemical industry, and food hygiene. Compared with chemical treatment technology for circulating water, electrochemical water treatment technology is relatively better and can solve problems such as scaling, corrosion, and microorganisms in circulating water.

[0004] Existing technologies generate foam during wastewater treatment, but these technologies do not address the foaming process, requiring manual cleaning. To address this issue, an electrochemical circulating water treatment device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an electrochemical circulating water treatment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An electrochemical circulating water treatment device includes: a device body, wherein a plurality of cathode units and anode units are disposed inside the device body, the cathode units and anode units are arranged at intervals inside the device body, the cathode units and anode units are arranged along the length direction inside the device body, and both the cathode units and anode units are plate-shaped structures, and a plurality of flow channels are arranged on the cathode units and anode units, the flow channels on the cathode units are staggered from the flow channels on the adjacent anode units, and the plurality of cathode units are reciprocally slidably disposed inside the device body along the width direction of the device body;

[0008] The filter channel is located above the main body of the device and is used to input filtered wastewater into the main body of the device;

[0009] The sludge removal box, located at the bottom of the main body of the device, is used to remove sludge generated during the treatment process of the main body of the device.

[0010] A defoaming mechanism, installed on the main body of the device, is used to remove foam from the surface of the wastewater in the main body of the device.

[0011] In this system, the wastewater to be treated enters the main body of the device after being filtered through a filter screen. It is then treated by the cathode and anode units. Sludge generated during the treatment process enters the sludge discharge tank. Foam is removed during the electrochemical treatment process via a defoaming mechanism. By designing non-linear flow channels on the cathode and anode units, the residence time of the wastewater inside the main body of the device is increased, allowing for greater contact between the wastewater and the cathode and anode units, thus ensuring the effectiveness of the electrochemical treatment. The reciprocating sliding arrangement of the cathode unit within the main body further increases the contact between the cathode unit and the wastewater, further guaranteeing the electrochemical treatment effect. The defoaming mechanism removes foam, and the sludge discharge tank removes sludge from inside the main body of the device.

[0012] As a further embodiment of the present invention: the bottom of the cathode unit is fixedly mounted on the mounting base, and the mounting base is slidably mounted on a slide rail inside the main body of the device along the width direction of the main body of the device, and the slide rail extends along the width direction of the main body of the device.

[0013] As a further aspect of the present invention, it also includes a reciprocating mechanism, which comprises a reciprocating component and a connecting component. The connecting component includes a connecting rod connected to each mounting base. The end of each connecting rod away from the mounting base is fixedly mounted on a mounting plate. The mounting plate is connected to the reciprocating component.

[0014] As a further embodiment of the present invention: the reciprocating component includes a first telescopic member fixedly installed on the main body of the device, and the end of the first telescopic member away from the main body of the device is fixedly installed on the mounting plate.

[0015] As a further embodiment of the present invention: the top of the sludge discharge box is provided with several connecting holes, and each cathode unit and anode unit is provided with a connecting hole. The connecting hole is connected to the inside of the device body through a sludge guiding channel. The upper end of the sludge guiding channel is connected to the bottom of the device body, and the lower end of the sludge guiding channel is connected to a connecting hole. The sludge guiding channel is set to be larger at the top and smaller at the bottom.

[0016] As a further embodiment of the present invention: the interior of the sludge removal box has a cylindrical cavity that extends along the length of the main body of the device, and an auger is provided inside the sludge removal box; a brush is provided on the outside of the auger, and the brush on the outside of the auger abuts against the inner side wall of the sludge removal box; a sewage outlet is provided on the sludge removal box, and a switch valve is provided on the sewage outlet.

[0017] As a further embodiment of the present invention: the defoaming mechanism includes a flow guide shell, which is mounted on the main body of the device via a height adjustment mechanism. The bottom of the flow guide shell is connected to the upper edge of one side wall of the main body of the device via a soft connector. A rotating shaft is rotatably mounted on the flow guide shell, and at least two scrapers are arrayed on the rotating shaft.

[0018] As a further embodiment of the present invention: the scraper surface array is provided with a plurality of water leakage holes, and the height adjustment mechanism includes two ends disposed on both sides of the guide shell, which are respectively fixedly installed on the guide shell and the main body of the device.

[0019] As a further embodiment of the present invention: the middle position of the filter channel is enlarged, and a filter screen is installed in the enlarged area inside the filter channel. The filter screen is set on the step inside the filter channel, and a cleaning hole is provided on the outside of the filter screen.

[0020] As a further embodiment of the present invention: a sealing plate is provided on the side wall of the cleaning hole, and an openable annular groove is covered on the sealing plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing flow channels that are not in a straight line on the cathode unit and the anode unit, the residence time of wastewater inside the device body is increased, so that the wastewater can come into more contact with the cathode unit and the anode unit, thus ensuring the effect of electrotreatment. The cathode unit is reciprocated and slidably arranged in the device body, which increases the amount of contact between the cathode unit and the wastewater, further ensuring the effect of electrotreatment. The foam removal mechanism can remove foam, and the sludge removal box can remove sludge from inside the device body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an electrochemical circulating water treatment device according to an embodiment of the present invention. Figure 1 .

[0023] Figure 2 This is a schematic diagram of the structure of an electrochemical circulating water treatment device according to an embodiment of the present invention. Figure 2 .

[0024] Figure 3 This is a schematic diagram of the internal structure of an electrochemical circulating water treatment device according to an embodiment of the present invention.

[0025] Figure 4 This is a top view of an electrochemical circulating water treatment device according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the cathode unit in an electrochemical circulating water treatment device according to an embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the filter channel in an electrochemical circulating water treatment device according to an embodiment of the present invention.

[0028] In the diagram: 1 - Main body of the device;

[0029] 101-Cathode unit, 102-Anode unit, 103-Mounting base, 104-Silt guiding channel, 105-Drain outlet, 106-Connecting rod, 107-First telescopic component, 108-Mounting plate, 109-Flow passage;

[0030] 2-Filter channel;

[0031] 201-Filter screen, 202-Annular groove, 203-Cleaning hole, 204-Sealing plate;

[0032] 3- Drainage box;

[0033] 301-Auger, 302-Drain outlet, 303-Drive motor, 304-Switch valve;

[0034] 4- Foaming mechanism;

[0035] 401-Guide shell, 402-Rotating shaft, 403-Scraper, 404-Soft connector, 405-Rotating motor, 406-Guide disc. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1

[0038] Please see Figures 1-6 The present invention provides a structural diagram of an electrochemical circulating water treatment device according to Embodiment 1. The electrochemical circulating water treatment device includes: a device body 1, a filter channel 2, a sludge discharge box 3, and a foam removal mechanism 4. The sludge discharge box 3 is located at the bottom of the device body 1 and is used to remove sludge generated during the treatment process of the device body 1. The foam removal mechanism 4 is installed on the device body 1 and is used to remove foam from the surface of the wastewater in the device body 1. The filter channel 2 is located above the device body 1 and is used to input filtered wastewater into the device body 1.

[0039] The device body 1 is provided with a plurality of cathode units 101 and anode units 102. The cathode units 101 and anode units 102 are arranged at intervals inside the device body 1. The cathode units 101 and anode units 102 are arranged along the length direction inside the device body 1. Both the cathode units 101 and anode units 102 are plate-shaped structures. A plurality of flow channels 109 are arranged on the cathode units 101. The flow channels 109 on the cathode units 101 are staggered from the flow channels 109 on the adjacent anode units 102. The plurality of cathode units 101 are slidably disposed inside the device body 1 along the width direction of the device body 1.

[0040] In use, the wastewater to be treated enters the main body 1 of the device after being filtered through the filter channel 2. It is then treated by the cathode unit 101 and the anode unit 102. During the treatment process, the sludge generated by the wastewater enters the discharge tank 3. Foam is removed through the defoaming mechanism 4 during the electrochemical treatment process. By providing non-linear flow channels 109 on the cathode unit 101 and the anode unit 102, the residence time of the wastewater inside the main body 1 is increased, allowing the wastewater to have more contact with the cathode unit 101 and the anode unit 102, thus ensuring the effectiveness of the electrochemical treatment. The cathode unit 101 is reciprocatingly slidable within the main body 1, increasing the contact between the cathode unit 101 and the wastewater, further ensuring the effectiveness of the electrochemical treatment. The defoaming mechanism 4 removes foam, and the discharge tank 3 removes sludge from inside the main body 1.

[0041] In some embodiments of the present invention, the cathode unit 101 is fixedly mounted on a mounting base 103 at its bottom. The mounting base 103 is slidably mounted on a slide rail inside the device body 1 along the width direction of the device body 1, and the slide rail extends along the width direction of the device body 1. This achieves the slidable arrangement of the cathode unit 101 within the device body 1.

[0042] Example 2

[0043] Please see Figures 1-6 The main difference between this embodiment 2 and embodiment 1 is that in order to drive several cathode units 101 to reciprocate simultaneously, the present invention also includes a reciprocating mechanism. The reciprocating mechanism includes a reciprocating component and a connecting component. The connecting component includes a connecting rod 106 connected to each mounting base 103. The end of each connecting rod 106 away from the mounting base 103 is fixedly mounted on a mounting plate 108. The mounting plate 108 is connected to the reciprocating component. In this way, the reciprocating component drives the mounting plate 108 to drive each connecting rod 106 to reciprocate simultaneously.

[0044] In some embodiments, the reciprocating component may be a cam mechanism. Cam mechanisms are existing technology and will not be described in detail here.

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the reciprocating assembly includes a first telescopic member 107 fixedly mounted on the device body 1, with one end of the first telescopic member 107 remote from the device body 1 fixedly mounted on a mounting plate 108. The first telescopic member 107 reciprocates. The first telescopic member 107 can be an electric telescopic rod or a cylinder. There can be two first telescopic members 107, symmetrically arranged on the mounting plate 108.

[0046] like Figure 3 As shown in some embodiments of the present invention, the top of the sludge discharge box 3 is provided with several connecting holes, and each cathode unit 101 and anode unit 102 is provided with a connecting hole. The connecting hole is connected to the inside of the device body 1 through the sludge guiding channel 104. The upper end of the sludge guiding channel 104 is connected to the bottom of the device body 1, and the lower end of the sludge guiding channel 104 is connected to a connecting hole. The sludge guiding channel 104 is set to be larger at the top and smaller at the bottom, which facilitates the collection of sludge between the cathode unit 101 and the anode unit 102.

[0047] like Figure 3 As shown in some embodiments of the present invention, the drainage box 3 has a cylindrical cavity inside, which extends along the length of the main body 1 of the device. An auger 301 is installed inside the drainage box 3; a brush is installed on the outside of the auger 301, and the brush abuts against the inner sidewall of the drainage box 3. Thus, during use, the auger 301 rotates, and the brush cleans the cylindrical cavity inside the drainage box 3, effectively removing sludge.

[0048] In some embodiments of the present invention, the sludge discharge box 3 is provided with a discharge port 302, and a switch valve 304 is provided on the discharge port 302. The switch valve 304 is used to control the opening and closing of the discharge port 302 so that the discharge port 302 is opened when discharging sludge. In order to drive the auger 301 to rotate, the sludge discharge box 3 is also provided with a drive motor 303. The drive motor 303 is connected to the auger 301 through a transmission. The drive motor 303 can be connected to the auger 301 through a gear or a chain. The drive motor 303 can be fixedly installed on the sludge discharge box 3 with bolts.

[0049] like Figure 1 and 2As shown in some embodiments of the present invention, the defoaming mechanism 4 includes a flow guide shell 401, which is mounted on the device body 1 via a height adjustment mechanism. The bottom of the flow guide shell 401 is connected to the upper edge of one side wall of the device body 1 via a flexible connector 404. A rotating shaft 402 is rotatably mounted on the flow guide shell 401, and at least two scrapers 403 are arrayed on the rotating shaft 402. In use, the rotating shaft 402 drives the scrapers 403 to rotate, and the scrapers 403 input the foam floating on the surface of the sewage inside the device body 1 into the flow guide shell 401, and then discharge it through the upper edge of the flow guide shell 401. The flow guide shell 401 is mounted on the device body 1 via a height adjustment mechanism, which facilitates height adjustment to meet the defoaming needs of different liquid levels. The two sides of the flow guide shell 401 respectively abut against the side walls on both sides of the device body 1.

[0050] In some embodiments of the present invention, the scraper 403 has a plurality of water leakage through holes arranged on its surface array.

[0051] In some embodiments of the present invention, the height adjustment mechanism includes 407s disposed on both sides of the flow guide shell 401, with both ends of the 407s fixedly mounted on the flow guide shell 401 and the device body 1, respectively, so as to drive the flow guide shell 401 to rise and fall. A flow guide plate 406 is connected to the foam discharge side of the flow guide shell 401, and the flow guide plate 406 is used to guide the foam.

[0052] In some embodiments of the present invention, in order to drive the rotating shaft 402 to rotate, a rotating motor 405 is also installed on the rotating shaft 402. The rotating motor 405 is connected to the rotating shaft 402 in a transmission manner, and the rotating shaft 402 and the rotating motor 405 can be connected by a belt, gear, or coupling. This provides power for the rotation of the rotating shaft 402.

[0053] In some embodiments of the present invention, the main body 1 of the device is also provided with a drain outlet 105, which facilitates the discharge of sewage.

[0054] like Figure 3 and 6 As shown, in some embodiments of the present invention, the filter channel 2 is enlarged in the middle, and a filter 201 is installed in the enlarged area inside the filter channel 2. The filter 201 is set on the step inside the filter channel 2, and a cleaning hole 203 is provided on the outside of the filter 201 for collecting dirt.

[0055] In some embodiments of the present invention, a sealing plate 204 is provided on the side wall of the cleaning hole 203, and an openable annular groove 202 is covered on the sealing plate 204. Thus, when it is necessary to remove sludge from the cleaning hole 203, the cleaning hole 203 can be opened through the annular groove 202.

[0056] In some embodiments of the present invention, the annular groove 202 can be installed on the filter channel 2 by bolts.

[0057] In some other embodiments, one end of the annular groove 202 is rotatably mounted on the filter channel 2, while the other end is movably disposed. The other end of the annular groove 202 can be detachably mounted on the filter channel 2 via a snap-fit ​​or bolt, facilitating disassembly. A sealing ring is provided at the contact surface between the annular groove 202 and the filter channel 2 to reduce leakage.

[0058] In some embodiments of the present invention, the bottom of the device body 1 may also be provided with a drainage port.

[0059] The working principle of this invention is:

[0060] Wastewater requiring treatment is filtered through filter screen 201 inside filter channel 2 before entering the main body 1 of the device. The cathode unit 101 and anode unit 102 inside the main body 1 are energized, and the cathode unit 101 slides back and forth along the width of the main body 1. The treated water is discharged through connecting rod 106. During the treatment process, some sludge collects through guide channel 104 and enters the discharge tank 3. Simultaneously, the rotating motor 405 is energized, driving the rotating shaft 402 and scraper 403 to rotate. The scraper 403 rotates and discharges the foam on the surface of the wastewater inside the main body 1 through the guide shell 401. When cleaning of the inside of the main body 1 is required, the filter channel 2 stops receiving water, and the water inside the main body 1 is drained. The switch valve 304 is opened, driving the motor 303 to rotate, and the sludge inside the discharge tank 3 is discharged through the drain port 302. By providing non-linear flow channels 109 on the cathode unit 101 and anode unit 102, the residence time of wastewater inside the device body 1 is increased, allowing the wastewater to have more contact with the cathode unit 101 and anode unit 102, thus ensuring the effectiveness of electrotreatment. The cathode unit 101 is reciprocated and slidably arranged in the device body 1, increasing the amount of contact between the cathode unit 101 and the wastewater, further ensuring the effectiveness of electrotreatment. The foam removal mechanism 4 can remove foam, and the sludge removal box 3 can remove sludge from inside the device body 1.

[0061] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electrochemical circulating water treatment device, characterized in that, include: The device body (1) is provided with a plurality of cathode units (101) and anode units (102) inside the device body (1). The cathode units (101) and anode units (102) are arranged at intervals inside the device body (1). The cathode units (101) and anode units (102) are arranged along the length direction inside the device body (1). Both the cathode units (101) and anode units (102) are plate-shaped structures. A plurality of flow channels (109) are arranged on the cathode units (101) and anode units (102). The flow channels (109) on the cathode units (101) are staggered from the flow channels (109) on the adjacent anode units (102). The plurality of cathode units (101) are slidably arranged inside the device body (1) along the width direction of the device body (1). The filter channel (2) is located above the main body (1) of the device and is used to input filtered wastewater into the main body (1); The sludge discharge box (3) is set at the bottom of the main body of the device (1) and is used to discharge the sludge during the treatment process of the main body of the device (1); And a defoaming mechanism (4) is installed on the main body (1) of the device to remove the foam from the surface of the sewage in the main body (1).

2. The electrochemical circulating water treatment device according to claim 1, characterized in that, The bottom of the cathode unit (101) is fixedly mounted on the mounting base (103). The mounting base (103) is slidably mounted on a slide rail inside the device body (1) along the width direction of the device body (1). The slide rail extends along the width direction of the device body (1).

3. The electrochemical circulating water treatment device according to claim 2, characterized in that, It also includes a reciprocating mechanism, which includes a reciprocating component and a connecting component. The connecting component includes a connecting rod (106) connected to each mounting base (103). The end of each connecting rod (106) away from the mounting base (103) is fixedly mounted on a mounting plate (108). The mounting plate (108) is connected to the reciprocating component.

4. The electrochemical circulating water treatment device according to claim 3, characterized in that, The reciprocating assembly includes a first telescopic member (107) fixedly installed on the device body (1), with the end of the first telescopic member (107) away from the device body (1) fixedly installed on the mounting plate (108).

5. The electrochemical circulating water treatment device according to claim 1, characterized in that, The top of the sludge discharge box (3) is provided with several connecting holes. Each cathode unit (101) and anode unit (102) is provided with a connecting hole. The connecting hole is connected to the inside of the device body (1) through the sludge guiding channel (104). The upper end of the sludge guiding channel (104) is connected to the bottom of the device body (1), and the lower end of the sludge guiding channel (104) is connected to a connecting hole. The sludge guiding channel (104) is set to be larger at the top and smaller at the bottom.

6. The electrochemical circulating water treatment device according to claim 5, characterized in that, The inside of the sludge discharge box (3) has a cylindrical cavity that extends along the length of the main body (1) of the device. An auger (301) is installed inside the sludge discharge box (3). A brush is installed on the outside of the auger (301), and the brush on the outside of the auger (301) abuts against the inner side wall of the sludge discharge box (3). A drain outlet (302) is installed on the sludge discharge box (3), and a switch valve (304) is installed on the drain outlet (302).

7. The electrochemical circulating water treatment device according to claim 1, characterized in that, The defoaming mechanism (4) includes a flow guide shell (401), which is mounted on the main body (1) of the device via a height adjustment mechanism. The bottom of the flow guide shell (401) is connected to the upper edge of one side wall of the main body (1) of the device via a soft connector (404). A rotating shaft (402) is rotatably mounted on the flow guide shell (401), and at least two scrapers (403) are arrayed on the rotating shaft (402).

8. The electrochemical circulating water treatment device according to claim 7, characterized in that, The scraper (403) has a plurality of water leakage holes arranged on its surface. The height adjustment mechanism includes (407) arranged on both sides of the guide shell (401). The two ends of (407) are respectively fixedly installed on the guide shell (401) and the main body (1) of the device.

9. The electrochemical circulating water treatment device according to claim 1, characterized in that, The filter channel (2) is enlarged in the middle, and a filter (201) is installed in the enlarged area inside the filter channel (2). The filter (201) is set on the step inside the filter channel (2), and a cleaning hole (203) is provided on the outside of the filter (201).

10. An electrochemical circulating water treatment device according to claim 9, characterized in that, A sealing plate (204) is provided on the side wall of the cleaning hole (203), and an openable annular groove (202) is covered on the sealing plate (204).

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