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

Abstract

The invention belongs to the technical field of electric appliances, and particularly relates to an electrolytic water quality purification device, a water heater and an electrolytic water quality purification method. The device comprises an electrolysis unit, the electrolysis unit comprises an anode and a cathode, one end of the anode is connected with a power supply anode, and one end of the cathode is connected with a power supply cathode; the water quality detection unit is used for detecting water quality data in the water tank; the control unit is used for acquiring water quality data detected by the water quality detection unit; and according to the water quality data, the power supply is controlled to adjust the voltage applied to the anode and the cathode. The water quality detection unit is arranged to detect the water quality data of water in the water tank, so that the control unit can adjust the voltage applied to the electrode 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] The present application belongs to the field of electrical appliance technology, and specifically relates to an electrolytic water purification device and a water heater, and an electrolytic water purification method. Background Art

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

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

[0004] However, when the existing electrolytic water purification device electrolyzes water of different water qualities, a fixed voltage is applied to the electrodes, resulting in that the water quality after electrolysis is difficult to reach the preset standard. Summary of the invention

[0005] The present application provides an electrolytic water purification device, a water heater, and an electrolytic water purification method, which are used to solve the technical problem that a fixed voltage is applied to electrodes when electrolyzing water of different water qualities in existing electrolytic water purification devices, resulting in the water quality after electrolysis being difficult to reach a preset standard.

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

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

[0008] A water quality detection unit, used to detect water quality data in the water tank;

[0009] The control unit is used to: obtain the water quality data detected by the water quality detection unit; and control the power supply to adjust the voltage applied to the anode and the cathode according to the water quality data.

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

[0011] In the above-mentioned preferred technical solution of the 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 above preferred technical solution of the electrolytic water purification device, the control unit is specifically used for:

[0013] Acquire the turbidity data, the pH value data, and the residual chlorine content data from the water quality detection unit;

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

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

[0016] According to the turbidity data, determine whether the turbidity of the water in the water 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 the cathode.

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

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

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

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

[0022] According to the residual chlorine content data, determine whether the residual chlorine content of the water 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 the cathode.

[0024] In the above preferred technical solution of the electrolytic water purification device, the anode and the cathode include:

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

[0026] In a second aspect, the present application provides a water heater, the water heater comprising the electrolytic water purification device according to any one of claims 1 to 8, and the water heater further comprising:

[0027] A water tank, in which the electrolytic unit of the electrolytic water purification device is arranged;

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

[0029] In a third aspect, the present application provides an electrolytic water purification method, which is applied to the above-mentioned electrolytic water purification device, or to the above-mentioned water heater, and the method comprises:

[0030] Controlling the water quality detection unit to detect water quality data in the water tank, wherein the water quality data includes: turbidity, pH value, and residual chlorine content of the water;

[0031] Based on the water quality data, the control power supply adjusts the voltage applied to the anode and the cathode.

[0032] In the above preferred technical solution of the electrolytic water purification method, the step of controlling the power supply to adjust the voltage applied to the anode and the cathode according to the water quality data includes:

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

[0034] In the above preferred technical solution of the electrolytic water purification method, the power supply is controlled to adjust the voltage applied to the anode and the cathode according to the turbidity data, the pH value data, or the residual chlorine content data, including:

[0035] According to the turbidity data, determine whether the turbidity of the water in the water 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 the cathode.

[0037] In the above preferred technical solution of the electrolytic water purification method, the power supply is controlled to adjust the voltage applied to the anode and the cathode according to the turbidity data, the pH value data, or the residual chlorine content data, including:

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

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

[0040] In the above preferred technical solution of the electrolytic water purification method, the power supply is controlled to adjust the voltage applied to the anode and the cathode according to the turbidity data, the pH value data, or the residual chlorine content data, including:

[0041] According to the residual chlorine content data, determine whether the residual chlorine content of the water 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 the cathode.

[0043] The present application provides an electrolytic water purification device, a water heater, and an electrolytic water purification method. A water quality detection unit is set to detect the water quality data of water in a water tank, so that the control unit can adjust the voltage applied by the power supply to the electrode according to the water quality data, so that water of different water qualities can meet the water quality standards after electrolysis. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0047] Figure 3 This is a flow chart of an electrolytic water purification method provided in an embodiment of the present application.

[0048] Description of reference numerals:

[0049] 101-electrolysis unit;

[0050] 102- Water quality testing unit;

[0051] 103- control unit;

[0052] 201-water tank;

[0053] 202-Heating unit.

[0054] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

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

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

[0058] Some current water purification equipment can initially purify water through filtration or scale inhibition, but cannot effectively kill bacteria and other microorganisms in the water. By electrolyzing water, ozone and hydroxyl free radicals with strong oxidizing properties are produced, which can effectively kill bacteria and other microorganisms in the water.

[0059] The effect of purifying water by electrolysis is related to the voltage applied to the electrodes, and the voltage has a direct impact on the quality of the water after electrolysis. However, when the existing electrolysis water purification device electrolyzes water of different water qualities, a fixed voltage is applied to the electrodes, resulting in the water quality after electrolysis often failing to meet the requirements.

[0060] In response to the above technical problems, the technical concept of the present application is: to detect water quality, and adjust the voltage applied to the anode and cathode according to the water quality data, so as to achieve the adjustment of the water quality of electrolyzed water.

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

[0062] In a possible embodiment of the present application, an electrolytic water purification device is provided. Figure 1 Schematic diagram of an electrolytic water purification device provided in an embodiment of the present application. Figure 1 As shown, the device comprises:

[0063] The electrolysis unit 101 includes an anode and a cathode, wherein one end of the anode is connected to the positive electrode of the power supply, and one end of the cathode is connected to the negative electrode of the power supply;

[0064] In order to electrolyze water, a certain distance is left between the anode and the cathode. The anode and the cathode are placed in a water tank. When a power supply applies voltage between the anode and the cathode, the water flowing through the anode and the cathode can be electrolyzed, thereby 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. The shape of the water tank can be a box body, a cylinder, etc. This application does not limit the specific shape of the water tank.

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

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

[0067] The water quality detection unit 102 is placed in the water tank. Optionally, the water quality data includes: turbidity, pH value, and residual chlorine content of the water. Residual chlorine refers to the chlorine remaining in the water after the water is disinfected by chlorination. At present, most water plants still disinfect water by adding chlorine, but when the residual chlorine content in the water is too high, it will cause harm to the human body. Similarly, too high turbidity of water and high or low pH value will cause harm to the human body. The water quality detection unit may include: a turbidity sensor, a pH sensor, and a residual chlorine sensor. The turbidity sensor is used to detect turbidity, the pH sensor is used to detect pH value, and the residual chlorine sensor is used to detect residual chlorine content.

[0068] It should be noted that the turbidity sensor uses optical principles to comprehensively judge the turbidity situation through the transmittance and scattering rate of the liquid solution; the pH sensor is a sensor used to detect the hydrogen ion concentration in water and convert it into a corresponding usable output signal. The hydrogen ions in the water in the water tank react with the electrodes of the sensor to generate a voltage signal, and the magnitude of the voltage is in a certain proportional relationship with the concentration of hydrogen ions, so the corresponding pH value can be obtained by measuring the magnitude of the voltage; the residual chlorine sensor directly measures the residual chlorine content in water through the principle of electrochemical polarography.

[0069] The control unit 103 is used to: obtain the 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 the cathode according to the water quality data.

[0070] In this embodiment, the control unit 103 may be a chip with a control function, and the turbidity sensor, pH sensor, and residual chlorine sensor may establish a communication connection with the control unit 103 , so that the detected turbidity, pH value, and residual chlorine content may be transmitted 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 the cathode according to 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 the reference voltage. Optionally, when the control unit 103 simultaneously obtains the turbidity, pH value, and residual chlorine content data transmitted by the water quality detection unit 102, the first difference, the second difference, and the third difference can be calculated respectively, wherein the first difference is the difference between the turbidity and the preset turbidity threshold, the second difference is the difference between the pH value and the preset pH value threshold, and the third difference is the difference between the residual chlorine content and the preset residual chlorine content threshold. Further, the water quality data corresponding to the largest value among the first difference, the second difference, and the third difference is determined as the target water quality data, and the voltage applied by the power supply to the anode and the cathode is adjusted according to the target water quality data. For example, when the first difference is the largest, the turbidity is determined as the target water quality data, and the power supply is controlled to increase or decrease the voltage applied to the anode and the cathode according to the turbidity.

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

[0074] In a possible embodiment of the present application, the control unit 103 is specifically configured to:

[0075] Based on the turbidity data, determine whether the turbidity of the water in the water 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 it is detected that the water turbidity is too high, the control unit 103 can control the power supply to increase the voltage applied to the anode and the cathode to improve the electrolysis efficiency and reduce the turbidity in the water.

[0078] Optionally, the control unit 103 may determine the increase value of the reference voltage according to the difference between the turbidity data of the water in the water tank and a preset turbidity threshold.

[0079] In a possible embodiment of the present application, the control unit 103 is specifically used to: determine whether the pH value of the water in the water tank is less than or equal to a preset pH value threshold according to the pH value data:

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

[0081] Optionally, the control unit 103 may determine the reduction value of the reference voltage according to the difference between the pH value data of the water in the water tank and a preset pH value threshold.

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

[0083] In a possible embodiment of the present application, the control unit 103 is specifically configured to:

[0084] According to the residual chlorine content data, determine whether the residual chlorine content of the water 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 may determine the increase value of the reference voltage according to the residual chlorine content data of the water in the water tank and a preset residual chlorine content threshold.

[0087] The technical effect of this embodiment is: 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 the cathode to improve the 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 a possible embodiment of the present application, the anode and the cathode include:

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

[0090] In this embodiment, the anode and the electrode are diamond electrodes whose surfaces are covered with diamond films. The diamond films have excellent electrical conductivity and chemical stability. Compared with conventional electrodes, the diamond electrodes do not produce harmful substances during the electrolysis process.

[0091] In a possible embodiment of the present application, a water heater is provided, which includes the above-mentioned electrolytic water purification device. Figure 2 Schematic diagram of the water heater structure provided in the embodiment of the present application. Figure 2 As shown, the water heater also includes:

[0092] A water tank 201, in which the electrolysis unit 101 of the electrolysis water purification device is disposed;

[0093] like Figure 2 As shown, the electrolysis unit 101 is arranged at the water outlet of the water heater, and at this position, it can be ensured that the poured water is electrolyzed and purified. The anode and cathode can be arranged by fixing them to the inner wall of the water tank 201, and the wires connected to the anode and cathode and the power supply can be arranged in the interlayer between the water heater shell 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 electrolytic water purification device control unit 103.

[0095] It should be noted that the water quality detection unit 102 and the heating unit 202 in the present application can be arranged in the water tank 201, and the present application does not limit the specific installation position. Figure 2 For example, the water quality detection unit 102 and the heating unit 202 are arranged 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, so as to heat the water under the control of the control unit 103.

[0096] The control unit 103 and the power supply can also be arranged in the interlayer between the water heater shell 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 electrolyzes the water in the water tank 201 in response to the user's heating instruction, 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 by the power supply to the anode and cathode according to the water quality data.

[0099] In a possible embodiment of the present application, an electrolytic water purification method is provided, and the method is applied to the above-mentioned electrolytic water purification device, or to the above-mentioned water heater. Figure 3 This is a flow chart of a method for electrolyzing water purification provided in an embodiment of the present application. Figure 3 As shown, the method includes:

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

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

[0102] S302: According to the water quality data, the power supply is controlled to adjust the voltage applied to the anode and the cathode.

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

[0104] According to the turbidity data, or the pH value data, or the residual chlorine content data, the control power supply adjusts the voltage applied to the anode and the cathode.

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

[0106] In a possible embodiment of the present application, according to turbidity data, or pH value data, or residual chlorine content data, controlling the power supply to adjust the voltage applied to the anode and the cathode includes:

[0107] Based on the turbidity data, determine whether the turbidity of the water in the water 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 may determine the increase value of the reference voltage according to the difference between the turbidity data of the water in the water tank and a preset turbidity threshold.

[0110] In a possible embodiment of the present application, according to turbidity data, or pH value data, or residual chlorine content data, controlling the power supply to adjust the voltage applied to the anode and the cathode includes:

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

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

[0113] Optionally, the control unit may determine the reduction value of the reference voltage according to the difference between the pH value data of the water in the water tank and a preset pH value threshold.

[0114] In a possible embodiment of the present application, according to turbidity data, or pH value data, or residual chlorine content data, controlling the power supply to adjust the voltage applied to the anode and the cathode includes:

[0115] According to the residual chlorine content data, determine whether the residual chlorine content of the water 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 the cathode.

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

[0118] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrolytic water purification device, characterized in that: The device comprises: An electrolysis unit, the electrolysis unit comprising: an anode and a cathode, one end of the anode is connected to the positive electrode of a power supply, and one end of the cathode is connected to the negative electrode of the power supply; A water quality detection unit, used to detect water quality data in the water tank; The control unit is used to: obtain the water quality data detected by the water quality detection unit; and control the power supply to adjust the voltage applied to the anode and the cathode according to the water quality data.

2. The device according to claim 1, characterized in that The water quality data include: water turbidity, pH value, and residual chlorine content.

3. The device according to claim 2, 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.

4. The device according to claim 2, characterized in that The control unit is specifically used for: Acquire the turbidity data, the pH value data, and the residual chlorine content data from the water quality detection unit; The power supply is controlled to adjust the voltage applied to the anode and the cathode according to the turbidity data, the pH value data, or the residual chlorine content data.

5. The device according to claim 4, characterized in that The control unit is specifically used for: According to the turbidity data, determine whether the turbidity of the water in the water 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 the cathode.

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

7. The device according to claim 3, characterized in that The control unit is specifically used for: According to the residual chlorine content data, determine whether the residual chlorine content of the water 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 the cathode.

8. The device according to claim 1, characterized in that The anode and cathode include: A conductive substrate, a surface of which is covered with a diamond film.

9. A water heater, characterized in that: The water heater comprises the electrolytic water purification device according to any one of claims 1 to 8, and the water heater further comprises: A water tank, in which the electrolytic unit of the electrolytic water purification device is arranged; The heating unit is used to heat the water in the water tank under the control of the control unit of the electrolytic water purification device.

10. 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 to 8, or to the water heater according to claim 9, and the method comprises: Controlling the water quality detection unit to detect water quality data in the water tank, wherein the water quality data includes: turbidity, pH value, and residual chlorine content of the water; Based on the water quality data, the control power supply adjusts the voltage applied to the anode and the cathode.

11. The method according to claim 10, characterized in that According to the water quality data, controlling the power supply to adjust the voltage applied to the anode and the cathode includes: The power supply is controlled to adjust the voltage applied to the anode and the cathode according to the turbidity data, the pH value data, or the residual chlorine content data.

12. The method according to claim 10, characterized in that The step of controlling the power supply to adjust the voltage applied to the anode and the cathode according to the turbidity data, the pH value data, or the residual chlorine content data comprises: According to the turbidity data, determine whether the turbidity of the water in the water 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 the cathode.

13. The method according to claim 10, characterized in that The step of controlling the power supply to adjust the voltage applied to the anode and the cathode according to the turbidity data, the pH value data, or the residual chlorine content data comprises: According to the pH value data, determine whether the pH value of the water in the water tank is less than or equal to a preset pH value threshold: If so, the power supply is controlled to reduce the voltage applied to the anode and the cathode.

14. The method according to claim 12, characterized in that The step of controlling the power supply to adjust the voltage applied to the anode and the cathode according to the turbidity data, the pH value data, or the residual chlorine content data comprises: According to the residual chlorine content data, determine whether the residual chlorine content of the water 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 the cathode.

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