Electrolytic water purification device, water heater and electrolytic water purification method

Abstract

The application belongs to the technical field of electrical appliances, and particularly relates to an electrolytic water quality purification device and water heater, and an electrolytic water quality purification method. The application comprises: an electrolysis unit, which comprises: an anode and a cathode, one end of the anode being connected with a positive electrode of a power supply, and one end of the cathode being connected with a negative electrode of the power supply; a water quality detection unit for detecting water quality data in a water tank; and a control unit for: acquiring the water quality data detected by the water quality detection unit; and controlling the power supply to adjust the voltage applied to the anode and the cathode according to the water quality data. The water quality detection unit is arranged to detect the water quality data of the water in the water tank, so that the control unit can adjust the voltage applied to the electrodes by the power supply according to the water quality data, and water with different water qualities can reach the water quality standard after electrolysis.

Description

Technical Field

[0001] This application belongs to the field of electrical technology, specifically relating to an electrolytic water purification device and water heater, and an electrolytic water purification method. Background Technology

[0002] As people's living standards improve, their requirements for water safety and hygiene are becoming increasingly higher.

[0003] Some water purification devices use the principle of electrolysis. By applying voltage to electrodes placed in water, the water is electrolyzed to produce strong oxides, which kill bacteria and purify the water.

[0004] However, existing water purification devices apply a fixed voltage to the electrodes when electrolyzing water of different qualities, which makes it difficult for the water quality to meet the preset standards after electrolysis. Summary of the Invention

[0005] This application provides an electrolytic water purification device and water heater, as well as an electrolytic water purification method, to solve the technical problem that existing electrolytic water purification devices apply a fixed voltage to the electrodes when electrolyzing water of different qualities, resulting in the water quality after electrolysis failing to meet the preset standards.

[0006] In a first aspect, this application provides an electrolytic water purification device, the device comprising:

[0007] An electrolysis unit, comprising an anode and a cathode, wherein one end of the anode is connected to the positive terminal of a power supply, and one end of the cathode is connected to the negative terminal of the power supply;

[0008] The water quality testing unit is used to detect water quality data in the water tank.

[0009] The control unit is configured to: acquire the water quality data detected by the water quality detection unit; and, based on the water quality data, control the power supply to adjust the voltage applied to the anode and the cathode.

[0010] In the preferred technical solution of the above-mentioned electrolytic water purification device, the water quality data includes: water turbidity, pH value, and residual chlorine content.

[0011] In the preferred technical solution of the above-mentioned electrolytic water purification device, the water quality detection unit includes: a turbidity sensor, a pH sensor, and a residual chlorine sensor. The turbidity sensor is used to detect the turbidity, the pH sensor is used to detect the pH value, and the residual chlorine sensor is used to detect the residual chlorine content.

[0012] In the preferred technical solution of the above-mentioned electrolytic water purification device, the control unit is specifically used for:

[0013] The turbidity data, pH value data, and residual chlorine content data are obtained from the water quality detection unit.

[0014] Based on the turbidity data, or the pH value data, or the residual chlorine content data, the power supply is controlled to regulate the voltage applied to the anode and cathode.

[0015] In the preferred technical solution of the above-mentioned electrolytic water purification device, the control unit is specifically used for:

[0016] Based on the turbidity data, determine whether the turbidity of the water in the tank is greater than or equal to a preset turbidity threshold:

[0017] If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

[0018] In the preferred technical solution of the above-mentioned electrolytic water purification device, the control unit is specifically used for:

[0019] Based on the pH value data, determine whether the pH value of the water in the tank is less than or equal to a preset pH threshold:

[0020] If so, the power supply is controlled to reduce the voltage applied to the anode and cathode.

[0021] In the preferred technical solution of the above-mentioned electrolytic water purification device, the control unit is specifically used for:

[0022] Based on the residual chlorine content data, determine whether the residual chlorine content in the water tank is greater than or equal to a preset residual chlorine content threshold:

[0023] If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

[0024] In the preferred embodiment of the above-mentioned electrolytic water purification device, the anode and cathode include:

[0025] A conductive substrate, the surface of which is covered with a diamond film.

[0026] Secondly, this application provides a water heater, the water heater comprising the electrolytic water purification device as described in any one of claims 1-8, and the water heater further comprising:

[0027] The water tank contains the electrolysis unit of the electrolytic water purification device.

[0028] The heating unit is controlled by the control unit of the electrolytic water purification device to heat the water in the water tank.

[0029] Thirdly, this application provides a method for purifying water by electrolysis, the method being applied to the aforementioned water purification device by electrolysis, or to the aforementioned water heater, the method comprising:

[0030] The water quality detection unit controls the detection of water quality data in the water tank, including: turbidity, pH value, and residual chlorine content of the water;

[0031] Based on the water quality data, the power supply is controlled to adjust the voltage applied to the anode and cathode.

[0032] In the preferred embodiment of the above-mentioned electrolytic water purification method, the step of controlling the power supply to adjust the voltage applied to the anode and cathode based on the water quality data includes:

[0033] Based on the turbidity data, or the pH value data, or the residual chlorine content data, the power supply is controlled to regulate the voltage applied to the anode and cathode.

[0034] In a preferred embodiment of the above-mentioned electrolytic water purification method, the step of controlling the voltage applied to the anode and cathode based on the turbidity data, the pH value data, or the residual chlorine content data includes:

[0035] Based on the turbidity data, determine whether the turbidity of the water in the tank is greater than or equal to a preset turbidity threshold:

[0036] If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

[0037] In a preferred embodiment of the above-mentioned electrolytic water purification method, the step of controlling the voltage applied to the anode and cathode based on the turbidity data, the pH value data, or the residual chlorine content data includes:

[0038] Based on the pH value data, determine whether the pH value of the water in the tank is less than or equal to a preset pH threshold:

[0039] If so, the power supply is controlled to reduce the voltage applied to the anode and cathode.

[0040] In a preferred embodiment of the above-mentioned electrolytic water purification method, the step of controlling the voltage applied to the anode and cathode based on the turbidity data, the pH value data, or the residual chlorine content data includes:

[0041] Based on the residual chlorine content data, determine whether the residual chlorine content in the water tank is greater than or equal to a preset residual chlorine content threshold:

[0042] If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

[0043] This application provides an electrolytic water purification device and water heater, as well as an electrolytic water purification method. By setting up a water quality detection unit to detect the water quality data of the water in the water tank, the control unit can adjust the voltage applied to the electrodes according to the water quality data, so that water of different qualities can meet the water quality standards after electrolysis. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0045] Figure 1 This is a schematic diagram of the architecture of an electrolytic water purification device provided in an embodiment of this application;

[0046] Figure 2 This is a schematic diagram of the water heater structure provided in an embodiment of this application;

[0047] Figure 3 This is a flowchart of a water purification method by electrolysis provided in an embodiment of this application.

[0048] Explanation of reference numerals in the attached figures:

[0049] 101 - Electrolysis Unit;

[0050] 102 - Water Quality Testing Unit;

[0051] 103 - Control Unit;

[0052] 201-Water Tank;

[0053] 202-Heating unit.

[0054] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0056] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0057] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0058] Current water purification equipment can perform preliminary purification of water through filtration or scale inhibition, but it cannot effectively kill bacteria and other microorganisms in the water. Electrolysis of water generates ozone and hydroxyl radicals, which have strong oxidizing properties and can effectively kill bacteria and other microorganisms in the water.

[0059] The effectiveness of water purification through electrolysis is related to the voltage applied to the electrodes, and the voltage level directly affects the quality of the water after electrolysis. However, existing water purification devices apply a fixed voltage to the electrodes when electrolyzing water of different qualities, resulting in water quality that often fails to meet requirements after electrolysis.

[0060] To address the aforementioned technical problems, the technical concept of this application is: to detect water quality and adjust the voltage applied to the anode and cathode based on the water quality data, thereby achieving the regulation of the electrolyzed water quality.

[0061] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0062] In one possible embodiment of this application, an electrolytic water purification device is provided. Figure 1 This is a schematic diagram of the architecture of an electrolytic water purification device provided in an embodiment of this application, as shown below. Figure 1 As shown, the device includes:

[0063] Electrolysis unit 101 includes an anode and a cathode, with one end of the anode connected to the positive terminal of the power supply and one end of the cathode connected to the negative terminal of the power supply.

[0064] To electrolyze water, a certain distance is left between the anode and cathode. The anode and cathode are placed in a water tank. When a voltage is applied between the anode and cathode, the water flowing through them is electrolyzed, producing strong oxidants such as ozone and hydroxyl radicals, which effectively kill bacteria, viruses, and other microorganisms in the water. It should be noted that the water tank in this application is a container for storing water, and its shape can be a box, cylinder, etc.; this application does not limit the specific shape of the water tank.

[0065] Optionally, the anode and cathode are flat plate electrodes, which can be made of graphite or other chemically stable conductive materials.

[0066] Water quality detection unit 102 is used to detect water quality data in the water tank;

[0067] The water quality testing unit 102 is placed in the water tank. Optionally, water quality data includes: turbidity, pH value, and residual chlorine content. Residual chlorine refers to the chlorine remaining in the water after chlorination disinfection. Currently, most water treatment plants still disinfect water by adding chlorine; however, high residual chlorine content in water can be harmful to human health. Similarly, excessively high turbidity, high or low pH values ​​can also be harmful to human health. The water quality testing unit may include: a turbidity sensor, a pH sensor, and a residual chlorine sensor. The turbidity sensor detects turbidity, the pH sensor detects pH value, and the residual chlorine sensor detects residual chlorine content.

[0068] It should be noted that the turbidity sensor utilizes optical principles, comprehensively judging turbidity by measuring the transmittance and scattering rate of the liquid solution; the pH sensor is used to detect the concentration of hydrogen ions in water and convert it into a corresponding usable output signal. Hydrogen ions in the water tank interact with the electrodes of the sensor to generate a voltage signal, and the magnitude of this voltage is proportional to the concentration of hydrogen ions, thus the pH value can be obtained by measuring the voltage; the residual chlorine sensor directly measures the residual chlorine content in water using the principle of electrochemical polarography.

[0069] The control unit 103 is used to: acquire water quality data detected by the water quality detection unit 102; and control the power supply to adjust the voltage applied to the anode and cathode based on the water quality data.

[0070] In this embodiment, the control unit 103 can be a chip with control function. The turbidity sensor, pH sensor and residual chlorine sensor can establish a communication connection with the control unit 103, so as to transmit the detected turbidity, pH value and residual chlorine content to the control unit 103.

[0071] In this embodiment, the control unit 103 can control the power supply to increase or decrease the voltage applied to the anode and cathode based on the detected turbidity, pH value, and residual chlorine content.

[0072] A reference voltage can be set, and the control unit 103 increases or decreases the voltage based on this reference voltage. Optionally, when the control unit 103 simultaneously obtains turbidity, pH value, and residual chlorine content data transmitted by the water quality detection unit 102, it can calculate a first difference, a second difference, and a third difference, where the first difference is the difference between turbidity and a preset turbidity threshold, the second difference is the difference between pH value and a preset pH value threshold, and the third difference is the difference between residual chlorine content and a preset residual chlorine content threshold. Further, the water quality data corresponding to the largest value among the first, second, and third differences is determined as the target water quality data, and the voltage applied to the anode and cathode is adjusted according to the target water quality data. For example, when the first difference is the largest, turbidity is determined as the target water quality data, and the voltage applied to the anode and cathode is increased or decreased according to the turbidity.

[0073] The technical effect of this embodiment is that: a water quality detection unit is set up to detect the water quality data of the water in the water tank, so that the control unit can adjust the voltage applied to the electrodes according to the water quality data, so that water of different qualities can meet the water quality standards after electrolysis.

[0074] In one possible embodiment of this application, the control unit 103 is specifically used for:

[0075] Based on the turbidity data, determine whether the turbidity of the water in the tank is greater than or equal to the preset turbidity threshold:

[0076] If so, the control power supply increases the voltage applied to the anode and cathode.

[0077] The technical effect of this embodiment is that when the water turbidity is detected to be too high, the control unit 103 can control the power supply to increase the voltage applied to the anode and cathode, so as to improve the electrolysis efficiency and reduce the turbidity in the water.

[0078] Optionally, the control unit 103 can determine the increase in the reference voltage based on the difference between the turbidity data of the water in the water tank and the preset turbidity threshold.

[0079] In one possible embodiment of this application, the control unit 103 is specifically configured to: determine, based on pH value data, whether the pH value of the water in the tank is less than or equal to a preset pH value threshold.

[0080] If so, the control power supply will reduce the voltage applied to the anode and cathode.

[0081] Optionally, the control unit 103 can determine the reduction value of the reference voltage based on the difference between the pH value data of the water in the water tank and the preset pH value threshold.

[0082] The technical effect of this embodiment is that when the pH value of the water is detected to be too low, the control unit 103 can control the power supply to reduce the voltage applied to the anode and cathode, so as to reduce the generation of strong oxides such as chlorine and ozone, thereby increasing the pH value of the water.

[0083] In one possible embodiment of this application, the control unit 103 is specifically used for:

[0084] Based on the residual chlorine content data, determine whether the residual chlorine content in the water tank is greater than or equal to the preset residual chlorine content threshold:

[0085] If so, the control power supply increases the voltage applied to the anode and cathode.

[0086] Optionally, the control unit 103 can determine the increase in the reference voltage based on the residual chlorine content data of the water in the water tank and the preset residual chlorine content threshold.

[0087] The technical effect of this embodiment is that when a high residual chlorine content is detected in the water, the control unit 103 can control the power supply to increase the voltage applied to the anode and cathode to improve electrolysis efficiency, accelerate the oxidation reaction, and make the chloride ions in the water be oxidized into chlorine gas more quickly, thereby reducing the residual chlorine content in the water.

[0088] Based on the above embodiments, in one possible embodiment of this application, the anode and cathode include:

[0089] A conductive substrate, the surface of which is covered with a diamond film.

[0090] In this embodiment, the anode and electrode are diamond electrodes with a diamond film covering the surface. The diamond film has excellent conductivity and chemical stability. Compared with conventional electrodes, the diamond electrode does not produce harmful substances during the electrolysis process.

[0091] In one possible embodiment of this application, a water heater is provided, which includes the above-described electrolytic water purification device. Figure 2 This is a schematic diagram of the water heater structure provided in the embodiments of this application, such as... Figure 2 As shown, the water heater also includes:

[0092] Water tank 201, the electrolysis unit 101 of the electrolysis water purification device is located inside the water tank 201;

[0093] like Figure 2 As shown, the electrolysis unit 101 is located at the water outlet of the water heater, ensuring that the poured water is purified by electrolysis. The anode and cathode can be fixed to the inner wall of the water tank 201, and the wires connecting the anode and cathode to the power supply can be placed in the interlayer between the water heater casing and the water tank 201.

[0094] The heating unit 202 is used to heat the water in the water tank under the control of the control unit 103 of the electrolytic water purification device.

[0095] It should be noted that the water quality detection unit 102 and heating unit 202 in this application can be installed inside the water tank 201; this application does not limit the specific installation location. Figure 2 For example, the water quality detection unit 102 and the heating unit 202 are located on the bottom surface of the water tank 201 and are respectively connected to the control unit 103. The heating unit 202 may include an electric heating element, thereby heating the water under the control of the control unit 103.

[0096] The control unit 103 and the power supply can also be located in the interlayer between the water heater casing and the water tank 201.

[0097] Optionally, the water quality detection unit 102 may include a temperature sensor to control the heating temperature of the water in the water tank 201.

[0098] The water heater provided in this embodiment can operate through the following process: when the user turns on the heating mode, the heating unit 202 heats the water, the control unit 103 responds to the user's heating command to electrolyze the water in the water tank 201, and controls the water quality detection unit 102 to detect the water quality data of the water in the water tank 201 in real time, and adjusts the voltage applied to the anode and cathode according to the water quality data.

[0099] In one possible embodiment of this application, an electrolytic water purification method is provided, which is applied to the above-mentioned electrolytic water purification device or to the above-mentioned water heater. Figure 3 This is a flowchart of a water purification method using electrolysis provided in an embodiment of this application, as shown below. Figure 3 As shown, the method includes:

[0100] S301, The water quality detection unit controls the detection of water quality data in the water tank, including: water turbidity, pH value, and residual chlorine content;

[0101] The water quality testing unit may include a turbidity sensor, a pH sensor, and a residual chlorine sensor.

[0102] S302. Based on water quality data, control the power supply to adjust the voltage applied to the anode and cathode.

[0103] Optionally, in this embodiment, based on water quality data, the power supply is controlled to adjust the voltage applied to the anode and cathode, including:

[0104] Based on turbidity data, pH data, or residual chlorine content data, the power supply is used to regulate the voltage applied to the anode and cathode.

[0105] In this embodiment, the principle of controlling the voltage applied to the anode and cathode based on the reference voltage, turbidity data, pH value data, or residual chlorine content data is the same as in the previous embodiment, and will not be repeated here.

[0106] In one possible embodiment of this application, controlling the voltage applied to the anode and cathode by adjusting the power supply based on turbidity data, pH data, or residual chlorine content data includes:

[0107] Based on the turbidity data, determine whether the turbidity of the water in the tank is greater than or equal to the preset turbidity threshold:

[0108] If so, the control power supply increases the voltage applied to the anode and cathode.

[0109] Optionally, the control unit can determine the increase in the reference voltage based on the difference between the turbidity data of the water in the tank and the preset turbidity threshold.

[0110] In one possible embodiment of this application, controlling the voltage applied to the anode and cathode by adjusting the power supply based on turbidity data, pH data, or residual chlorine content data includes:

[0111] Based on the pH data, determine whether the pH value of the water in the tank is less than or equal to the preset pH threshold:

[0112] If so, the control power supply will reduce the voltage applied to the anode and cathode.

[0113] Optionally, the control unit can determine the reduction value of the reference voltage based on the difference between the pH value data of the water in the tank and the preset pH value threshold.

[0114] In one possible embodiment of this application, controlling the voltage applied to the anode and cathode by adjusting the power supply based on turbidity data, pH data, or residual chlorine content data includes:

[0115] Based on the residual chlorine content data, determine whether the residual chlorine content in the water tank is greater than or equal to the preset residual chlorine content threshold:

[0116] If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

[0117] Optionally, the control unit can determine the increase in the reference voltage based on the residual chlorine content data of the water in the tank and the preset residual chlorine content threshold.

[0118] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electrolytic water purification device, characterized in that, The device includes: An electrolysis unit, comprising: an anode and a cathode, wherein one end of the anode is connected to the positive terminal of a power supply, and one end of the cathode is connected to the negative terminal of the power supply; wherein the anode and cathode comprise: a conductive substrate, the surface of which is covered with a diamond thin film; A water quality testing unit is used to detect water quality data in a water tank; wherein the water quality data includes: turbidity, pH value, and residual chlorine content; The control unit is configured to: acquire the water quality data detected by the water quality detection unit; and, based on the water quality data, control the power supply to adjust the voltage applied to the anode and the cathode; The control unit is specifically used for: The water quality detection unit acquires the turbidity data, pH value data, and residual chlorine content data; based on the first difference between the turbidity data and a preset turbidity threshold, the second difference between the pH value data and a preset pH threshold, and the third difference between the residual chlorine content data and a preset residual chlorine content threshold, the water quality data corresponding to the largest of the first difference, the second difference, and the third difference is determined as the target water quality data, and the power supply is controlled to adjust the voltage applied to the anode and cathode according to the target water quality data.

2. The apparatus according to claim 1, characterized in that, The water quality detection unit includes a turbidity sensor, a pH sensor, and a residual chlorine sensor. The turbidity sensor is used to detect the turbidity, the pH sensor is used to detect the pH value, and the residual chlorine sensor is used to detect the residual chlorine content.

3. The apparatus according to claim 1, characterized in that, When the target water quality data is the turbidity data, the control unit is specifically used for: Based on the turbidity data, determine whether the turbidity of the water in the tank is greater than or equal to a preset turbidity threshold: If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

4. The apparatus according to claim 1, characterized in that, When the target water quality data is the pH value data, the control unit is specifically used for: Based on the pH value data, determine whether the pH value of the water in the tank is less than or equal to a preset pH threshold: If so, the power supply is controlled to reduce the voltage applied to the anode and cathode.

5. The apparatus according to claim 1, characterized in that, When the target water quality data is the residual chlorine content data, the control unit is specifically used for: Based on the residual chlorine content data, determine whether the residual chlorine content in the water tank is greater than or equal to a preset residual chlorine content threshold: If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

6. A water heater, characterized in that, The water heater includes the electrolytic water purification device as described in any one of claims 1-5, and the water heater further includes: The water tank contains the electrolysis unit of the electrolytic water purification device. The heating unit is controlled by the control unit of the electrolytic water purification device to heat the water in the water tank.

7. A method for purifying water by electrolysis, characterized in that, The method is applied to the electrolytic water purification device according to any one of claims 1-5, or to the water heater according to claim 6, and the method includes: The water quality detection unit controls the detection of water quality data in the water tank, including: turbidity, pH value, and residual chlorine content of the water; Based on the water quality data, the power supply is controlled to adjust the voltage applied to the anode and cathode; wherein the anode and cathode each comprise a conductive substrate, the surface of which is covered with a diamond film; The step of controlling the power supply to adjust the voltage applied to the anode and cathode based on the water quality data includes: Based on the first difference between the turbidity data and the preset turbidity threshold, the second difference between the pH value data and the preset pH value threshold, and the third difference between the residual chlorine content data and the preset residual chlorine content threshold, the water quality data corresponding to the largest of the first difference, the second difference, and the third difference is determined as the target water quality data, and the power supply is controlled to adjust the voltage applied to the anode and cathode according to the target water quality data.

8. The method according to claim 7, characterized in that, When the target water quality data is the turbidity data, controlling the power supply to adjust the voltage applied to the anode and cathode according to the target water quality data includes: Based on the turbidity data, determine whether the turbidity of the water in the tank is greater than or equal to a preset turbidity threshold: If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

9. The method according to claim 7, characterized in that, When the target water quality data is the pH value data, controlling the power supply to adjust the voltage applied to the anode and cathode according to the target water quality data includes: Based on the pH value data, determine whether the pH value of the water in the tank is less than or equal to a preset pH threshold: If so, the power supply is controlled to reduce the voltage applied to the anode and cathode.

10. The method according to claim 7, characterized in that, When the target water quality data is the residual chlorine content data, the step of controlling the power supply to adjust the voltage applied to the anode and cathode according to the target water quality data includes: Based on the residual chlorine content data, determine whether the residual chlorine content in the water tank is greater than or equal to a preset residual chlorine content threshold: If so, the power supply is controlled to increase the voltage applied to the anode and cathode.

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