Electrodeposition descaling polar plate cleaning and descaling device, system and method

Abstract

The invention belongs to the technical field of electrochemical water treatment, and particularly relates to a cleaning and descaling device, system and method for an electro-deposition descaling polar plate. The device comprises an electro-deposition tank body, a plurality of pairs of vertical slots are oppositely formed in the opposite side walls of the electro-deposition tank body, spoilers are connected to slot openings between the opposite slots, and an electrode and a reference electrode are connected to the upper portion of the inner side wall of the electro-deposition tank body; the inner bottom surface of the electro-deposition tank body is of a double-layer structure which is composed of an upper bottom plate and a lower bottom plate and is provided with a cavity; the upper surface of the lower bottom plate in the cavity is connected with an ultrasonic vibration head mechanism and a drainage mechanism; the upper bottom plate is connected with a pressure relief valve and a circular truncated cone; the upper part of the side wall of the electro-deposition tank body is connected with a deposition tank water inlet mechanism, and the lower part of the side wall of the electro-deposition tank body is connected with a control mechanism; and the control mechanism is in potential signal connection with the sedimentation tank water inlet mechanism, the drainage mechanism, the pressure relief valve and the ultrasonic vibration head mechanism respectively. The cleaning of the polar plate can be realized without dismounting.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrochemical water treatment, and particularly relates to a device, a system and a method for cleaning and removing scale from an electrodeposition scale removal electrode plate. Background Art

[0002] A certain oilfield laboratory developed a small-scale test device for electrodepositing calcium carbonate scale from oilfield produced water with the patent number: 202211600909.1. This device can precipitate calcium carbonate in the produced water in advance by electrodeposition method, effectively reducing the number of scaling ions calcium ions and bicarbonate ions in the produced water. In actual application, it can effectively reduce the probability of scaling on the inner walls of pipelines and equipment in the downstream process of oilfield produced water treatment. The electrodeposition cell is one of the important components of the electrodeposition calcium carbonate scale removal device. Its structure is a closed container, with metal electrode plates inside whose spacing and quantity are adjustable. The electrode plate material is an anode titanium-based ruthenium-iridium coated metal plate and a cathode stainless steel plate. Under the action of a DC power supply, calcium carbonate scale in the produced water will continuously precipitate and condense around the cathode plate. After running for a relatively long time of 1-2 hours, a large amount of calcium carbonate will condense on the electrode plate, which will affect the continuous precipitation of calcium carbonate scale in the produced water and requires timely cleaning of the electrode plate. The existing technology is to stop the test process, open the top cover of the deposition cell, and disassemble the electrode plate for manual cleaning, which not only seriously affects the test progress, reduces the service life of equipment components, but is also extremely inconvenient. In order to reduce process shutdown and manual cleaning procedures, an automatic cleaning function for the electrodeposition cell electrode plate of the electrodeposition calcium carbonate scale removal test device is required. Since the medium in the electrodeposition cell is a fluid medium, general flushing cannot meet the cleaning requirements of the electrode plate, and a cleaning and scale removal technology that can be cleaned online and meet the equipment process requirements is needed. Summary of the Invention

[0003] The present invention provides a device, a system and a method for cleaning and removing scale from an electrodeposition scale removal electrode plate, aiming to provide a device and a method that can automatically clean the calcium carbonate scale on the cathode plate in the electrodeposition cell of the electrodeposition calcium carbonate scale removal test device, thereby reducing the number of shutdowns during the test process of the electrodeposition test device and the workload of manual cleaning of the electrode plate.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] An electroplating scale removal plate cleaning and scale removal device, at least including an electroplating cell body. Opposite side walls of the electroplating cell body are respectively provided with multiple pairs of vertically arranged slots. A spoiler is connected at the slot openings between the opposite slots. An electrode is connected to the upper part of the inner side wall of the electroplating cell body. The inner bottom surface of the electroplating cell body is a double-layer structure with a cavity formed by an upper bottom plate and a lower bottom plate. An ultrasonic vibration head mechanism and a drainage mechanism are connected to the upper surface of the lower bottom plate in the cavity. A pressure relief valve and a frustum are connected to the upper bottom plate. A sedimentation tank water inlet mechanism is connected to the upper part of the side wall of the electroplating cell body, and a control mechanism is connected to the lower part of the side wall of the electroplating cell body. The control mechanism is respectively connected to the sedimentation tank water inlet mechanism, the drainage mechanism, the pressure relief valve and the ultrasonic vibration head mechanism through potential signal connections. A reference electrode is also connected inside the electroplating cell body.

[0006] The ultrasonic vibration head mechanism includes multiple ultrasonic vibration heads, an ultrasonic generating device and multiple connecting columns. The multiple ultrasonic vibration heads are respectively fixedly connected to the lower bottom plate evenly through the connecting columns. After being connected in parallel, the multiple ultrasonic vibration heads are connected to a control switch through the ultrasonic generating device. The ultrasonic generating device is connected inside the electroplating cell body.

[0007] The size of the ultrasonic vibration head is 59 mm in diameter and 67 mm in height; its power is 60 W and the frequency is 28 KHz.

[0008] The drainage mechanism includes a drain pipe and a drain valve. The drain valve used is an electric valve, and the drain valve is connected to the control switch through an electrical signal connection. The drain pipe is connected to the lower bottom plate. The drain valve is connected to the outlet of the drain pipe.

[0009] The sedimentation tank water inlet mechanism includes a sedimentation tank outlet pipeline and a sedimentation tank outlet valve. The sedimentation tank outlet valve is an electric valve. The sedimentation tank outlet valve is connected to the sedimentation tank outlet pipeline. The sedimentation tank outlet valve is connected to the control switch through an electrical signal connection.

[0010] The control switch includes a time setting knob and an ultrasonic cleaning switch. The ultrasonic cleaning switch is respectively connected to the sedimentation tank water inlet mechanism, the drainage mechanism, the pressure relief valve and the ultrasonic vibration head mechanism through electrical signal connections. The time setting knob is connected to the ultrasonic vibration head mechanism through an electrical connection.

[0011] The pressure relief valve is an electric valve.

[0012] An electroplating scale removal plate cleaning and scale removal system includes an electroplating scale removal plate cleaning and scale removal device and also includes a controller. The controller is connected to the control switch and the reference electrode through electrical signal connections.

[0013] A scale removal method for an electroplating scale removal plate cleaning and scale removal system includes the following steps

[0014] Step 1. Rotate the time setting knob on the control switch to set the cleaning time.

[0015] Step 2. If the plate material is made of pure metal, go to Step 3; if the plate material is made of rare metal coating materials, go to Step 4.

[0016] Step 3. When the reference electrode indicates a change in potential, manually turn on the ultrasonic cleaning switch or the controller controls the closing of the outlet valve of the deposition tank, and at the same time, turn on the drain valve and the pressure relief valve; start cleaning and descaling the electrode plates. After reaching the set time, the drain valve and the pressure relief valve automatically open, and the calcium carbonate scale attached to the cathode plate is cleaned into powder and discharged together with the sewage in the electro-deposition tank body through the drain pipe, and the automatic cleaning and descaling of the electrode plates is completed.

[0017] Step 4. When the reference electrode indicates a change in potential, the controller shuts down the outlet valve of the deposition tank, and at the same time, turns on the drain valve and the pressure relief valve; the controller controls the swapping of the anode and cathode output terminals, converts the cathode to the anode, and strips and removes the scale on the cathode plate through the hydrogen evolution reaction.

[0018] Advantages:

[0019] (1) The present invention can reduce the number of times of disassembling the deposition tank, improve the service life of the components of the deposition tank, reduce the equipment outage period and cleaning time, extend the life of the electrode plates, and reduce the manual workload.

[0020] (2) The present invention only needs to be powered on to work, without using chemical agents, achieving environmental friendliness.

[0021] (3) The present invention has a simple structure, has little influence on the water treatment process flow, and is convenient for on-site promotion and use.

[0022] (4) The present invention effectively improves the possibility of applying the electro-deposition process technology to the gathering and transportation system in the future, enabling the electro-deposition descaling process to meet the production requirements of oilfields.

[0023] (5) The present invention can automatically clean the electrode plates in the electro-deposition tank without stopping and disassembling the equipment, which not only improves the service life of the equipment components but also reduces the manual workload.

[0024] (6) The present invention can adopt different descaling methods according to different plate materials.

[0025] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following describes the preferred embodiments of the present invention in detail in conjunction with the drawings. Brief Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 This is a sectional view of the electrodeposition cell in the present invention.

[0028] Figure 2 This is a sectional view of the bottom of the electrodeposition cell in the present invention.

[0029] Figure 3 This is a top view of the electrodeposition cell in the present invention without a cover plate.

[0030] Figure 4 This is a front view of the electrodeposition cell in the present invention.

[0031] In the figure: 1, electrodeposition cell body; 2, spoiler; 3, slot; 4, slot opening; 5, deposition cell outlet pipe; 6, deposition cell outlet valve; 7, ultrasonic vibrator head; 8, drain pipe; 9, drain valve; 10, pressure relief valve; 11, frustum; 12, first bolt; 13, second bolt; 14, time setting knob; 15, ultrasonic cleaning switch. Specific embodiments

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] According to Figures 1 - 4An electrodeposition scale removal plate cleaning and scale removal device shown in the figure at least includes an electrodeposition cell body 1. Opposite side walls of the electrodeposition cell body 1 are oppositely provided with multiple pairs of vertically arranged slots 3. A spoiler 2 is connected to the slot openings 4 between the opposite slots 3. An electrode is connected to the upper part of the inner side wall of the electrodeposition cell body 1. The inner bottom surface of the electrodeposition cell body 1 is a double-layer structure with a cavity formed by an upper bottom plate and a lower bottom plate. An ultrasonic vibration head mechanism and a drainage mechanism are connected to the upper surface of the lower bottom plate in the cavity. A pressure relief valve 10 and a frustum 11 are connected to the upper bottom plate. A sedimentation tank water inlet mechanism is connected to the upper part of the side wall of the electrodeposition cell body 1, and a control mechanism is connected to the lower part of the side wall of the electrodeposition cell body 1. The control mechanism is respectively connected to the sedimentation tank water inlet mechanism, the drainage mechanism, the pressure relief valve 10, and the ultrasonic vibration head mechanism through potential signal connections. A reference electrode is also connected inside the electrodeposition cell body 1.

[0035] During actual use, the rotation control switch is set to set the cleaning time. If the plate material is made of pure metal, when the reference electrode prompts a change in potential, the ultrasonic cleaning switch 15 is turned on, the sedimentation tank water inlet mechanism is turned off, and at the same time, the drainage mechanism and the pressure relief valve 10 are turned on. The electrode plate starts to be cleaned and descaled. After reaching the set time, the drainage mechanism and the pressure relief valve 10 are automatically opened. The calcium carbonate scale attached to the cathode plate is cleaned into powder and discharged together with the sewage in the electrodeposition cell body 1 through the drainage mechanism, and the automatic cleaning and descaling of the electrode plate is completed.

[0036] In this embodiment, the internal dimensions of the electrodeposition cell body 1 are 45 cm in length, 15 cm in height, and 12 cm in width, and the inside of the sedimentation tank is made of stainless steel material. The pressure relief valve 10 is an electric valve, which is associated with the ultrasonic cleaning switch 15 in the control mechanism and is normally closed, and automatically opens when the ultrasonic cleaning ends.

[0037] In this embodiment, the frustum 11 is connected to the upper bottom plate of the electrodeposition cell body 1 through the first bolt 12. There is an outlet for the connection of the electrode plate and the reference electrode on the upper bottom plate, and the outlet is closed by the frustum 11. The upper bottom plate of the electrodeposition cell body 1 is fixed to the lower bottom plate of the electrodeposition cell body 1 through the second bolt 13.

[0038] The present invention can reduce the number of times of disassembling the sedimentation tank, improve the service life of the components of the sedimentation tank, reduce the equipment outage period and cleaning time, extend the life of the electrode plates, and reduce the manual workload. The present invention only needs to be powered on to work, without using chemical agents, achieving environmental friendliness. The structure of the present invention is simple, has little influence on the water treatment process flow, and is convenient for on-site popularization and use. The present invention effectively improves the possibility of applying the electro-deposition process technology to the gathering and transportation system in the future, enabling the electro-deposition scale removal process to meet the production requirements of oil fields. The present invention can automatically clean the electrode plates in the electro-deposition tank without stopping or disassembling the equipment, which not only improves the service life of the equipment components but also reduces the manual workload.

[0039] Embodiment 2:

[0040] According to Figure 2 An electro-deposition scale removal electrode plate cleaning and scale removal device shown, which is different from Embodiment 1 in that: the ultrasonic vibration head mechanism includes a plurality of ultrasonic vibration heads 7, an ultrasonic generating device, and a plurality of connecting columns; the plurality of ultrasonic vibration heads 7 are respectively fixedly connected to the lower bottom plate evenly through the connecting columns, and after being connected in parallel, the plurality of ultrasonic vibration heads 7 are connected to the control switch through the ultrasonic generating device; the ultrasonic generating device is connected inside the electro-deposition tank body 1.

[0041] Furthermore, the size of the ultrasonic vibration head 7 is 59 mm in diameter and 67 mm in height; its power is 60 W and the frequency is 28 KHz.

[0042] The connecting columns in this embodiment are made of stainless steel screws.

[0043] During actual use, a plurality of ultrasonic vibration heads 7 are bonded to the stainless steel screws, and the stainless steel screws are welded to the lower bottom plate by argon arc welding, and it is necessary to ensure that the weld is flat and smooth to ensure firmness and prevent water leakage.

[0044] When the reference electrode prompts a change in potential, turn on the ultrasonic cleaning switch 15, and the ultrasonic generating device emits ultrasonic vibration waves through the ultrasonic vibration heads 7 to clean and remove scale from the electrode plates.

[0045] Embodiment 3:

[0046] According to Figure 2 An electro-deposition scale removal electrode plate cleaning and scale removal device shown, which is different from Embodiment 1 in that: the drainage mechanism includes a drainage pipe 8 and a drainage valve 9; the drainage valve 9 is an electric valve, and the drainage valve 9 is electrically connected to the control switch; the drainage pipe 8 is connected to the lower bottom plate; the drainage valve 9 is connected to the outlet of the drainage pipe 8.

[0047] During actual use, the drain valve 9 is normally closed and is associated with the ultrasonic cleaning switch 15. When the ultrasonic cleaning switch 15 is turned on, the drain valve 9 opens to drain the sewage and the dirt on the electrode plates being cleaned in the electro-deposition cell body 1.

[0048] Embodiment 4:

[0049] According to Figure 1 An electro-deposition scale removal and electrode plate cleaning device as shown, which is different from Embodiment 1 in that: the deposition tank water inlet mechanism includes a deposition tank water outlet pipe 5 and a deposition tank outlet valve 6; the deposition tank outlet valve 6 is an electric valve; the deposition tank outlet valve 6 is connected to the deposition tank water outlet pipe 5; the deposition tank outlet valve 6 is electrically connected to the control switch.

[0050] During actual use, the deposition tank outlet valve 6 is normally open and is associated with the ultrasonic cleaning switch 15. When the ultrasonic cleaning switch 15 is turned on, the deposition tank outlet valve 6 closes. It remains closed until the cleaning is completed and then opens.

[0051] Embodiment 5:

[0052] According to Figure 4 An electro-deposition scale removal and electrode plate cleaning device as shown, which is different from Embodiment 1 in that: the control switch includes a time setting knob 14 and an ultrasonic cleaning switch 15; the ultrasonic cleaning switch 15 is electrically connected to the deposition tank water inlet mechanism, the drainage mechanism, the pressure relief valve 10, and the ultrasonic vibrator mechanism respectively; the time setting knob 14 is electrically connected to the ultrasonic vibrator mechanism.

[0053] During actual use, the scale of the time setting knob 14 is 0 - 60, and the cleaning within the range of 0 - 60 minutes can be set.

[0054] The ultrasonic cleaning switch 15 has two states: open and closed. 0 represents the closed state, and 1 represents the open state.

[0055] When connecting, all wires and connection points are sealed by means such as epoxy resin to ensure insulation, waterproofing, and corrosion resistance.

[0056] When using this embodiment, rotate the time setting knob 14 to set the cleaning time required, and place the ultrasonic cleaning switch 15 in the open state; at this time, the deposition tank outlet valve 6 in the deposition tank water inlet mechanism automatically closes, and the cleaning and scale removal of the electrode plates start. After reaching the set time, the pressure relief valve 10 and the drain valve 9 in the drainage mechanism automatically open. The calcium carbonate scale attached to the cathode plate is cleaned into powder and discharged through the drain pipe 8 together with the sewage in the electro-deposition cell body 1, and the automatic cleaning and scale removal of the electrode plates are completed.

[0057] Embodiment 6:

[0058] According to Figures 1 - 4 As shown, an electrodeposition scale removal plate cleaning and scale removal system includes an electrodeposition scale removal plate cleaning and scale removal device, and also includes a controller; the controller is electrically connected to a control switch and a reference electrode by electrical signals.

[0059] During actual use, the controller automatically controls the opening of the ultrasonic cleaning switch 15, closes the sedimentation tank water inlet mechanism, and simultaneously opens the drainage mechanism and the pressure relief valve 10 by obtaining data on the change of the potential prompted by the reference electrode; starts to clean and remove scale from the electrode plate. After reaching the set time, the drainage mechanism and the pressure relief valve 10 are automatically opened, and the calcium carbonate scale attached to the cathode plate is washed into powder and discharged together with the sewage in the electrodeposition tank body 1 through the drainage mechanism, and the automatic cleaning and scale removal of the electrode plate is completed.

[0060] The setting of the controller enables the automation and refinement of the electrodeposition scale removal plate cleaning process.

[0061] Embodiment Seven:

[0062] According to Figures 1 - 4 As shown, a scale removal method for an electrodeposition scale removal plate cleaning and scale removal system includes the following steps

[0063] Step 1: Rotate the time setting knob 14 in the control switch to set the cleaning time;

[0064] Step 2: If the electrode plate material is made of pure metal, go to Step 3; if the electrode plate material is made of rare metal coating materials, go to Step 4;

[0065] Step 3: When the potential prompted by the reference electrode changes, manually open the ultrasonic cleaning switch 15 or the controller controls the closing of the sedimentation tank outlet valve 6, and simultaneously open the drainage valve 9 and the pressure relief valve 10; start to clean and remove scale from the electrode plate. After reaching the set time, the drainage valve 9 and the pressure relief valve 10 are automatically opened, and the calcium carbonate scale attached to the cathode plate is washed into powder and discharged together with the sewage in the electrodeposition tank body 1 through the drain pipe 8, and the automatic cleaning and scale removal of the electrode plate is completed;

[0066] Step 4: When the potential prompted by the reference electrode changes, the controller shuts down the sedimentation tank outlet valve 6, and simultaneously opens the drainage valve 9 and the pressure relief valve 10; the controller controls the swapping of the anode and cathode output terminals, converts the cathode to the anode, and strips and removes the scale on the cathode plate through the hydrogen evolution reaction.

[0067] The present invention can reduce the number of times of disassembling the sedimentation tank, improve the service life of the sedimentation tank components, reduce the equipment outage period and cleaning time, extend the life of the electrode plate, and reduce the manual workload.

[0068] The present invention only needs to be powered on to work, without the use of chemical agents, achieving environmental friendliness.

[0069] The structure of the present invention is simple, has little influence on the water treatment process flow, and is convenient for on-site popularization and use.

[0070] The present invention effectively improves the possibility of applying the electrodeposition process technology to the gathering and transportation system in the future, enabling the electrodeposition scale removal process to meet the production requirements of oilfields.

[0071] The present invention can automatically clean the plates in the electrodeposition tank when the equipment is in operation without shutdown and disassembly, which not only improves the service life of equipment components but also reduces the workload of manual labor.

[0072] The present invention can adopt different scale removal methods according to different plate materials.

[0073] Without conflict, those skilled in the art can combine the relevant technical features in the above examples according to the actual situation to achieve the corresponding technical effects. Specific combinations are not elaborated herein one by one.

[0074] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0075] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0076] As mentioned above, these are only the preferred embodiments of the present invention. The present invention will not be limited to these embodiments shown herein, but rather conform to the broadest scope consistent with the principles and novel features disclosed herein. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims

1. An electrodeposition plate cleaning and descaling device, comprising at least an electrodeposition cell body (1), wherein the opposite side walls of the electrodeposition cell body (1) are provided with a plurality of pairs of vertically arranged slots (3), the slot openings (4) between the opposite slots (3) are connected with spoilers (2), and the upper part of the inner side wall of the electrodeposition cell body (1) is connected with an electrode; characterized in that: The inner bottom surface of the electrodeposition cell body (1) is a double-layer structure with a cavity formed by an upper bottom plate and a lower bottom plate; an ultrasonic vibration head mechanism and a drainage mechanism are connected to the upper surface of the lower bottom plate in the cavity; a pressure relief valve (10) and a round table (11) are connected to the upper bottom plate; a deposition cell water inlet mechanism is connected to the upper part of the side wall of the electrodeposition cell body (1), and a control mechanism is connected to the lower part of the side wall of the electrodeposition cell body (1); the control mechanism is respectively connected to the deposition cell water inlet mechanism, the drainage mechanism, the pressure relief valve (10) and the ultrasonic vibration head mechanism potential signal; and a reference electrode is also connected to the inside of the electrodeposition cell body (1).

2. The device for cleaning and descaling electrode plates for electrodeposition descaling as claimed in claim 1, characterized in that: The ultrasonic vibration head mechanism comprises a plurality of ultrasonic vibration heads (7), an ultrasonic generating device and a plurality of connecting columns; the plurality of ultrasonic vibration heads (7) are evenly fixedly connected to the lower bottom plate through the connecting columns, and the plurality of ultrasonic vibration heads (7) are connected in parallel and connected to the control switch through the ultrasonic generating device; the ultrasonic generating device is connected in the electrodeposition cell body (1).

3. The device for cleaning and descaling electrode plates for electrodeposition descaling as claimed in claim 2, characterized in that: The dimensions of the ultrasonic vibration head (7) are 59 mm in diameter and 67 mm in height; its power is 60 W and its frequency is 28 KHz.

4. The device for cleaning and descaling electrode plates for electrodeposition descaling as claimed in claim 1, characterized in that: The drainage mechanism comprises a drainage pipe (8) and a drainage valve (9); the drainage valve (9) is an electric valve, and the drainage valve (9) is connected to the control switch electrical signal; the drainage pipe (8) is connected to the lower base plate; the drainage valve (9) is connected to the outlet of the drainage pipe (8).

5. The device for cleaning and descaling electrode plates for electrodeposition descaling as claimed in claim 1, characterized in that: The sedimentation tank water inlet mechanism comprises a sedimentation tank outlet pipe (5) and a sedimentation tank outlet valve (6); the sedimentation tank outlet valve (6) is an electric valve; the sedimentation tank outlet valve (6) is connected to the sedimentation tank outlet pipe (5); the sedimentation tank outlet valve (6) is connected to a control switch electrical signal.

6. The device for cleaning and descaling electrode plates for electrodeposition descaling as claimed in claim 1, characterized in that: The control switch comprises a time setting knob (14) and an ultrasonic cleaning switch (15); the ultrasonic cleaning switch (15) is respectively connected to the water inlet mechanism, the drainage mechanism, the pressure relief valve (10) and the ultrasonic vibration head mechanism of the sedimentation tank by electrical signals; the time setting knob (14) is electrically connected to the ultrasonic vibration head mechanism.

7. An electrodeposition descaling plate cleaning and descaling device as claimed in claim 1 or 6, characterized in that: The pressure relief valve (10) is an electric valve.

8. An electrodeposition descaling plate cleaning and descaling system, characterized in that: It comprises the electroplating descaling plate cleaning and descaling device as described in any one of claims 1 to 7, and also comprises a controller; the controller is connected to the control switch and the reference electrode electrical signal.

9. A descaling method for an electrodeposition descaling plate cleaning and descaling system as claimed in claim 8, characterized in that: The following steps are included: Step 1: Rotate the time setting knob (14) in the control switch to set the cleaning time; Step 2: If the plate material is made of pure metal, proceed to step 3; if the plate material is made of rare metal coating material, proceed to step 4; Step 3: When the reference electrode indicates a change in potential, the ultrasonic cleaning switch (15) is manually turned on or the controller controls the sedimentation tank outlet valve (6) to be closed, and the drain valve (9) and the pressure relief valve (10) are opened at the same time; the electrode plate begins to be cleaned and descaled. After the set time is reached, the drain valve (9) and the pressure relief valve (10) are automatically opened, and the calcium carbonate scale attached to the cathode plate is cleaned into powder and discharged through the drain pipe (8) along with the sewage in the electrodeposition tank body (1), and the automatic cleaning and descaling of the electrode plate is completed; Step 4: When the reference electrode indicates a change in potential, the controller closes the sedimentation tank outlet valve (6) and simultaneously opens the drain valve (9) and the pressure relief valve (10); the controller controls the exchange of the anode and cathode output ends, converting the cathode into the anode, and removing the scale on the cathode plate through the hydrogen evolution reaction.

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