Cleaning method of water purifier, water purifier and storage medium

Abstract

The embodiment of the invention provides a cleaning method of a water purifier, the water purifier and a storage medium. The method comprises the following steps: checking the scale content in a pipeline of the water purifier; according to the water scale content in the pipeline, whether self-cleaning is conducted or not is determined; and under the condition that self-cleaning is determined, a cleaning agent is put into the pipeline, and the water flow speed and the water flow direction in the pipeline are controlled, so that the cleaning agent flows in the pipeline along with the water flow. By acquiring the scale content in the pipeline of the water purifier in real time, on the premise that the normal water purification function is not affected, the pipeline is automatically cleaned regularly, and by controlling the water flow speed and flow direction, it is ensured that a cleaning agent can fully act on the inner wall of the pipeline, so that the scale is effectively removed, and the influence of the scale in the pipeline on the service life of components in the water purifier is reduced; and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and in particular to a cleaning method for a water purifier, a water purifier and a computer-readable storage medium. Background Art

[0002] A water purifier is a water treatment device that deeply filters and purifies water according to the requirements for water use. Its technical core is the filter membrane in the filter element device, and the main technology comes from the composite filter element and RO membrane filter element. In the existing technology, since water purifiers mainly filter impurities in water through membrane technology in the filter element to provide tap water that reaches drinking water level, but tap water often dissolves a lot of solid dissolved matter, it is easy to produce scale after the water purifier has been used for too long, and the scale will be adsorbed inside the pipes inside the water purifier, making it difficult to clean.

[0003] For existing water purifiers, when the life of the reverse osmosis filter in the water purifier is about to expire or a new filter needs to be replaced, the water quality in the water purifier will be slightly reduced during this period, and scale is likely to form in the pipes. The flow channel of the water purifier usually has a small aperture. If the scale is not cleaned in time, it may cause the water flow of the water purifier to decrease or the pipes to become clogged, causing the pressure in the water purifier pipes to increase, affecting the life of the components in the water purifier and reducing the user experience. Summary of the invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide a method for cleaning a water purifier, a water purifier and a computer-readable storage medium that overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above problems, according to a first aspect of the present invention, a method for cleaning a water purifier is provided, the method comprising:

[0006] Checking the scale content in the pipes of the water purifier;

[0007] determining whether to perform self-cleaning according to the scale content in the pipeline;

[0008] When it is determined to perform self-cleaning, a cleaning agent is added to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow.

[0009] Optionally, a water pump and a valve are provided in the pipeline, and the controlling of the water flow speed and direction in the pipeline includes:

[0010] The water pump is controlled to adjust the water flow speed in the pipeline, and the valve is controlled to adjust the water flow direction in the pipeline.

[0011] Optionally, it also includes:

[0012] The water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow, and after a first period of time has passed, the water pump is turned off to allow the water flow in the pipeline to remain stationary.

[0013] Optionally, it also includes:

[0014] After the water pump is turned off to allow the water flow in the pipeline to stand still for a second time, the water pump is controlled to adjust the water flow speed in the pipeline to flush the pipeline, and the water flow in the pipeline is controlled to be discharged.

[0015] Optionally, a soluble solid probe is provided in the pipeline; and the step of checking the scale content in the pipeline of the water purifier comprises:

[0016] obtaining the dissolved solid content in the pipeline detected by the dissolved solid probe;

[0017] The scale content in the pipeline is determined according to the dissolved solid content.

[0018] Optionally, a pressure sensor is provided in the pipeline; and the step of checking the scale content in the pipeline of the water purifier comprises:

[0019] Acquiring the water pressure detected by the pressure sensor;

[0020] The scale content in the pipeline is determined according to the water pressure detected by the pressure sensor.

[0021] Optionally, determining whether to perform self-cleaning according to the scale content in the pipeline includes:

[0022] comparing the scale content in the pipeline with a preset scale content threshold;

[0023] When the scale content is greater than the preset scale content threshold, it is determined to perform self-cleaning.

[0024] Optionally, when the scale content is greater than the preset scale content threshold, determining to perform self-cleaning includes:

[0025] When the scale content is greater than the preset scale content threshold, outputting a prompt message to the user; the prompt message is used to prompt the user whether to turn on self-cleaning;

[0026] After detecting a self-cleaning instruction input by the user, it is determined to perform self-cleaning.

[0027] According to a second aspect of the present invention, there is provided a water purifier, comprising:

[0028] pipeline;

[0029] A scale detection module, used to detect the scale content in the pipeline;

[0030] A cleaning agent delivery module, used for delivering cleaning agent into the pipeline;

[0031] The cleaning control module is used to determine whether to perform self-cleaning according to the scale content in the pipeline; when it is determined to perform self-cleaning, the cleaning agent delivery module is controlled to deliver cleaning agent to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow.

[0032] Optionally, it further comprises: a water pump and a valve arranged on the pipeline;

[0033] The cleaning control module is used to control the water pump to adjust the water flow speed in the pipeline, and to control the valve to adjust the water flow direction in the pipeline, so that the cleaning agent flows in the pipeline along with the water flow.

[0034] Optionally, the cleaning control module is further used to control the water flow speed and direction in the pipeline so that the cleaning agent flows in the pipeline with the water flow and after a first period of time, the water pump is turned off to make the water flow in the pipeline stationary.

[0035] Optionally, the cleaning control module is further used to control the water pump to adjust the water flow speed in the pipeline to flush the pipeline and control the discharge of water in the pipeline after turning off the water pump to allow the water flow in the pipeline to stand still for a second time.

[0036] Optionally, the scale detection module includes a soluble solid probe, which is arranged in the pipeline and is used to detect the scale content in the pipeline.

[0037] Optionally, the scale detection module includes a pressure sensor, which is arranged in the pipeline and is used to detect the water pressure in the pipeline;

[0038] The scale detection module is used to determine the scale content in the pipeline according to the water pressure detected by the pressure sensor.

[0039] Optionally, the cleaning control module is used to compare the scale content in the pipeline with a preset scale content threshold; when the scale content is greater than the preset scale content threshold, determine to perform self-cleaning.

[0040] Optionally, the cleaning control module is used to output a prompt message to the user when the scale content is greater than the preset scale content threshold; the prompt message is used to prompt the user whether to turn on self-cleaning; after detecting the self-cleaning instruction input by the user, determine to perform self-cleaning.

[0041] According to a third aspect of the present invention, there is provided a water purifier, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program implements the steps of a water purifier cleaning method as described above when executed by the processor.

[0042] According to a fourth aspect of the present invention, there is provided a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of a method for cleaning a water purifier as described above.

[0043] The technical solution provided by the embodiments of the present invention may have the following beneficial effects:

[0044] An embodiment of the present invention provides a method for cleaning a water purifier, the method comprising: checking the scale content in the pipeline of the water purifier; determining whether to perform self-cleaning according to the scale content in the pipeline; and, if it is determined that self-cleaning is to be performed, adding a detergent to the pipeline, and controlling the water flow speed and water flow direction in the pipeline so that the detergent flows in the pipeline with the water flow. By obtaining the scale content in the pipeline of the water purifier in real time and determining whether to clean according to the scale content in the water purifier, the pipeline can be automatically cleaned regularly without affecting the normal water purification function. By controlling the water flow speed and flow direction, it is ensured that the detergent can fully act on the inner wall of the pipeline to effectively remove the scale, reducing the impact of the scale in the pipeline on the life of components in the water purifier, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a flow chart of steps of a method for cleaning a water purifier provided by an embodiment of the present invention;

[0046] Figure 2 is a flow chart of steps of another method for cleaning a water purifier provided by an embodiment of the present invention;

[0047] Figure 3 is a structural block diagram of a water purifier provided by an embodiment of the present invention;

[0048] Figure 4 This is a schematic diagram of water flow direction in a cleaning mode of a water purifier provided by an embodiment of the present invention;

[0049] Figure 5It is a schematic diagram of water flow direction in another cleaning mode of a water purifier provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] When the water quality in the water purifier decreases, scale is easily generated in the pipes. If the scale is not cleaned in time, it will shorten the life of the components in the water purifier and reduce the user experience.

[0052] One of the core concepts of the embodiment of the present invention is to obtain the scale content in the pipes of the water purifier in real time, and decide whether to clean the pipes according to the scale content in the pipes of the water purifier. When it is determined that the pipes are self-cleaning, detergents can be added into the pipes to automatically clean the pipes regularly without affecting the normal water purification function. The water flow rate and direction are controlled by controlling the water pump and valve to ensure that the detergent can fully act on the inner wall of the pipe to effectively remove scale, reduce the impact of scale in the pipes on the life of components in the water purifier, and improve user experience.

[0053] Reference Figure 1 , shows a flow chart of steps of a method for cleaning a water purifier provided by an embodiment of the present invention, and the method may specifically include the following steps:

[0054] Step 101, checking the scale content in the pipeline of the water purifier;

[0055] The water purifier may refer to an all-in-one water purifier and heat machine, a water purifier, a water purification device, etc., and the present invention is not limited to this.

[0056] Scale content usually refers to the amount of scale accumulated in a pipe or equipment within a specific time or under specific conditions.

[0057] In this embodiment, a scale detection module is provided in the pipe of the water purifier. The scale detection module monitors the scale condition in the flow channel in real time through components such as a soluble solids probe (TDS, total dissolved solids) to obtain the scale content in the water purifier pipe.

[0058] Step 102, determining whether to perform self-cleaning according to the scale content in the pipeline;

[0059] In this embodiment, two soluble solid probes are arranged in the water purifier pipeline, and the scale content in the pipeline is detected by the two soluble solid probes to obtain the scale conditions at two locations in the pipeline. A preset scale content threshold is set, and the obtained scale content is compared with the preset scale content threshold to determine whether the self-cleaning condition is met. If only one location meets the self-cleaning condition, the corresponding mode of cleaning is performed only on the location that meets the self-cleaning condition, and if both locations meet the self-cleaning condition, self-cleaning is performed simultaneously.

[0060] Step 103, when it is determined to perform self-cleaning, a cleaning agent is added to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow.

[0061] In this embodiment, when it is determined to perform self-cleaning, detergent is added to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the detergent flows in the pipeline with the water flow. A suitable detergent is selected according to the pipeline material and dirt type (such as grease, minerals, biofilm, etc.), and the detergent is added to the pipeline using the detergent delivery module set by the system.

[0062] By adjusting the speed of the water pump or using a frequency converter to control the water flow speed, and using a valve to control the water flow direction, ensure that the detergent can cover all parts of the pipeline, so that the detergent flows in the pipeline with the water flow to ensure that the detergent is evenly distributed in the pipeline to avoid local concentrations that are too high or too low, so that the detergent can flow through every corner of the pipeline. According to the monitoring data, the amount of detergent, water flow speed and direction are automatically or manually adjusted to optimize the cleaning effect. After cleaning, flush the pipeline with clean water to remove residual detergent, and re-test the cleaning effect in the pipeline to ensure that the expected standards are met.

[0063] A cleaning delivery module is set in the pipeline. When the user issues a cleaning instruction and confirms self-cleaning, the detergent delivery module will deliver detergent into the pipeline. After the detergent is delivered, the control center adjusts the working status of the water pump and the valve to control the water flow through the pipeline at a specific speed and direction, so that the detergent flows in the pipeline with the water flow and stands for a period of time, ensuring that the detergent is fully in contact with the scale and takes effect.

[0064] Reference Figure 2 , shows a flow chart of steps of another method for cleaning a water purifier provided by an embodiment of the present invention, the method may specifically include the following steps:

[0065] Step 201, checking the scale content in the pipeline of the water purifier;

[0066] The water purifier may refer to an all-in-one water purifier and heat machine, a water purifier, a water purification device, etc., and the present invention is not limited to this.

[0067] Scale content usually refers to the amount of scale accumulated in a pipe or equipment within a specific time or under specific conditions.

[0068] In this embodiment, a scale detection module is provided in the pipe of the water purifier. The scale detection module monitors the scale condition in the flow channel in real time through components such as a soluble solids probe (TDS, total dissolved solids) to obtain the scale content in the water purifier pipe.

[0069] In some embodiments, a dissolved solid probe is provided in the pipeline; the step 201 includes the following sub-steps:

[0070] Sub-step S11, obtaining the dissolved solid content in the pipeline detected by the dissolved solid probe;

[0071] A dissolved solids probe is an instrument used to measure the total amount of dissolved solids in water. Dissolved solids refers to the total amount of inorganic salts and organic matter dissolved in water, usually expressed in milligrams per liter (mg / L) or parts per million (ppm).

[0072] In this embodiment, before use, ensure that the TDS probe has been calibrated to ensure the accuracy of the measurement results, select a suitable detection point in the pipeline, ensure that the liquid flow is stable and undisturbed, set the TDS probe in the pipeline, ensure that the sensing part of the probe is completely immersed in the liquid, and the scale detection module controls the power supply of the TDS probe to turn on, start the measurement function and wait for a while until the probe is stable, and then obtain the read dissolved solids content.

[0073] Install the soluble solids probe in the water purifier pipe, connect it to the scale detection module, immerse the probe completely in the water of the water purifier pipe, record the measurement results, analyze the soluble solids content in the water sample based on the measurement results, and use it to obtain the scale content in the pipe.

[0074] Sub-step S12, determining the scale content in the pipeline according to the soluble solid content.

[0075] Scale is mainly composed of precipitates formed by the combination of hardness ions such as calcium and magnesium and ions such as carbonate and sulfate.

[0076] In this embodiment, a dissolved solid probe is used to measure the dissolved solid content in the water sample. According to the dissolved solid content and the content of main scale components in the water sample, the scale content in the pipeline can be estimated.

[0077] In some embodiments, a pressure sensor is provided in the pipeline; the step 201 includes the following sub-steps:

[0078] Sub-step S21, obtaining the water pressure detected by the pressure sensor;

[0079] A pressure sensor is a sensor used to measure the pressure of a fluid (liquid or gas) and can convert pressure signals into electrical signals.

[0080] In this embodiment, a pressure sensor is set in the pipeline and the water pressure detected by it is obtained, which can further analyze and judge the scale situation in the pipeline. Select a location in the pipeline where the water flow is stable and easy to install and maintain, ensure that the sensor is tightly connected to the pipeline, and monitor the collected data in real time to obtain the reading of the pressure sensor in real time. Record the pressure data regularly to form time series data. Record the baseline pressure in the pipeline in the absence of scale. As scale accumulates, the pressure in the pipeline will gradually increase. Calculate the difference between the current pressure and the baseline pressure. The greater the pressure difference, the more scale has accumulated. Combined with the dissolved solids content data, further verify the accumulation of scale.

[0081] Install the pressure sensor in the water purifier pipe, measure the water pressure in the pipe, read and record the water pressure data, and analyze the changes in water pressure based on the measurement results.

[0082] Sub-step S22, determining the scale content in the pipeline according to the water pressure detected by the pressure sensor.

[0083] The accumulation of scale in the pipeline will cause the inner diameter of the pipeline to decrease, thereby increasing the resistance to fluid flow and causing the water pressure to increase. By monitoring the changes in water pressure, the scale content in the pipeline can be indirectly obtained.

[0084] In this embodiment, a pressure sensor is used to regularly measure the water pressure in the pipeline, record the water pressure data, analyze the change trend of the water pressure data, and determine whether the water pressure increases over time. If the water pressure increases, it may indicate that there is scale accumulation in the pipeline. The scale content in the pipeline can be determined by calculation based on various parameters of the pipeline.

[0085] Step 202, determining whether to perform self-cleaning according to the scale content in the pipeline;

[0086] In this embodiment, two soluble solid probes are arranged in the water purifier pipeline, and the scale content in the pipeline is detected by the two soluble solid probes to obtain the scale conditions at two locations in the pipeline. A preset scale content threshold is set, and the obtained scale content is compared with the preset scale content threshold to determine whether the self-cleaning condition is met. If only one location meets the self-cleaning condition, the corresponding mode of cleaning is performed only on the location that meets the self-cleaning condition, and if both locations meet the self-cleaning condition, self-cleaning is performed simultaneously.

[0087] In some embodiments, step 202 includes the following sub-steps:

[0088] Sub-step S31, comparing the scale content in the pipeline with a preset scale content threshold;

[0089] The preset scale content threshold refers to the upper limit of the scale content set in a specific application scenario to ensure the normal operation of the pipeline system and the safety of water quality. Different application scenarios and pipeline materials have different tolerances to scale content, so the preset scale content threshold will also be different.

[0090] In this embodiment, the scale content measured by the soluble solid probe is compared with the preset scale content threshold to determine whether it exceeds the threshold. Based on the comparison result, it is determined whether self-cleaning or other maintenance measures are needed, and the comparison result is recorded, and analyzed and judged according to the actual situation. By comparing the scale content in the pipeline with the preset scale content threshold, it can be determined whether self-cleaning or other maintenance measures are needed. Regular monitoring and recording of scale content helps to timely detect and deal with scale problems, ensuring the normal operation of the pipeline and water quality safety.

[0091] Sub-step S32, when the scale content is greater than the preset scale content threshold, determining to perform self-cleaning.

[0092] In this embodiment, when it is determined that the scale content is greater than the preset scale content threshold, self-cleaning is necessary, and self-cleaning can effectively remove the scale in the pipeline and restore the normal operation of the pipeline and the safety of water quality. According to the comparison result of the scale content in the pipeline and the preset scale content threshold, it is confirmed that the scale content in the pipeline is greater than the preset scale content threshold, and then the self-cleaning mode is selected to be confirmed to clean the scale in the pipeline.

[0093] In some embodiments, step S32 includes the following sub-steps:

[0094] When the scale content is greater than the preset scale content threshold, a prompt message is output to the user; the prompt message is used to prompt the user whether to turn on self-cleaning; after detecting a self-cleaning instruction input by the user, it is determined to perform self-cleaning.

[0095] In this embodiment, the system compares the detected scale content with a preset scale content threshold value. If the detected scale content is greater than the preset threshold value, the output of the prompt information is triggered.

[0096] When the scale content exceeds the preset threshold, the system can prompt the user whether to turn on the self-cleaning function by displaying a prompt message on the device display, sending a voice message through the device, or sending a notification to the user through the APP. If the user confirms to turn on the self-cleaning mode, the system will start the self-cleaning program to inject a specific detergent into the water purifier pipe, react the detergent with the scale through the circulation system, dissolve the scale, discharge the cleaned liquid from the water purifier, and rinse the inside of the pipe with clean water to ensure that the detergent residue is removed. After the self-cleaning program is completed, the system can send a confirmation message to the user.

[0097] When the control center confirms that the scale content in the pipeline is greater than the preset scale content threshold based on the received scale content data, the control center first sends a prompt message to the user, which is used to prompt the user whether to turn on self-cleaning and let the user decide whether to turn on the self-cleaning mode now.

[0098] After receiving the prompt message, the user will issue an instruction. If the user issues a cleaning instruction, the detergent delivery module in the pipeline will deliver an appropriate amount of detergent into the flow channel. If the user does not plan to clean for the time being, he needs to set the self-cleaning time. After the user sets the self-cleaning time, he does not need to issue an instruction again. The detergent will be delivered automatically when the time comes. There will be obvious prompts when the self-cleaning mode is started, such as continuous lights and APP reminders.

[0099] Step 203, when it is determined to perform self-cleaning, a cleaning agent is added to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow.

[0100] In this embodiment, when it is determined to perform self-cleaning, detergent is added to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the detergent flows in the pipeline with the water flow. A suitable detergent is selected according to the pipeline material and dirt type (such as grease, minerals, biofilm, etc.), and the detergent is added to the pipeline using the detergent delivery module set by the system.

[0101] By adjusting the speed of the water pump or using a frequency converter to control the water flow speed, and using a valve to control the water flow direction, ensure that the detergent can cover all parts of the pipeline, so that the detergent flows in the pipeline with the water flow to ensure that the detergent is evenly distributed in the pipeline to avoid local concentrations that are too high or too low, so that the detergent can flow through every corner of the pipeline. According to the monitoring data, the amount of detergent, water flow speed and direction are automatically or manually adjusted to optimize the cleaning effect. After cleaning, flush the pipeline with clean water to remove residual detergent, and re-test the cleaning effect in the pipeline to ensure that the expected standards are met.

[0102] A cleaning delivery module is set in the pipeline. When the user issues a cleaning instruction and confirms self-cleaning, the detergent delivery module will deliver detergent into the pipeline. After the detergent is delivered, the control center adjusts the working status of the water pump and the valve to control the water flow through the pipeline at a specific speed and direction, so that the detergent flows in the pipeline with the water flow and stands for a period of time, ensuring that the detergent is fully in contact with the scale and takes effect.

[0103] In some embodiments, a water pump and a valve are provided in the pipeline, and step 203 includes the following sub-steps:

[0104] Sub-step S41, controlling the water pump to adjust the water flow speed in the pipeline, and controlling the valve to adjust the water flow direction in the pipeline.

[0105] A water pump is a mechanical device used to transport liquid or increase liquid pressure. It uses mechanical energy to transport liquid from a low-pressure area to a high-pressure area, and can appropriately increase water pressure or reduce water flow velocity in a water pressure regulating pipeline.

[0106] A valve is a device used to control the flow of fluid (liquid, gas, steam, etc.). Its main functions include opening, closing, regulating flow, regulating pressure, preventing backflow, etc.

[0107] In this embodiment, a pressure sensor is provided in the pipeline to monitor the pressure in the pipeline, thereby further adjusting the water flow pressure to adjust the water flow speed in the pipeline. The water pump is started by the control center to start conveying water, and the speed of the water pump is adjusted by the frequency converter to control the water flow speed, control the opening and closing of the valve, and adjust the water flow direction.

[0108] Step 204 , after controlling the water flow speed and direction in the pipeline so that the detergent flows in the pipeline along with the water flow and a first period of time has passed, turning off the water pump to allow the water flow in the pipeline to stand still.

[0109] In this embodiment, the water flow speed and direction in the pipeline are controlled so that the detergent flows in the pipeline with the water flow and after the first time, the water pump is turned off to allow the water flow in the pipeline to stand still. By starting the water pump, the water flow speed and direction in the pipeline can be controlled. The water pump starts working and pushes water (containing detergent) into the pipeline to ensure that the detergent can be evenly distributed in the pipeline and flow along the expected path. By adjusting the power of the water pump or the opening of the valve, the speed and direction of the water flow can be controlled. Generally, the water flow speed should be moderate to ensure that the detergent can be fully mixed and flow to various parts of the pipeline, so that the detergent flows in the pipeline to achieve the purpose of cleaning or disinfection.

[0110] The detergent is added to the water, and as the water flows in the pipe, the flow time (first time) should be determined according to the length of the pipe, the concentration of the detergent and the required cleaning effect. After flowing for a period of time, stop the water flow and let the water flow in the pipe stand still so that the detergent can stay in the pipe for a period of time and further play a role. After the predetermined first time, turn off the water pump. At this time, the water flow in the pipe stops flowing, and the detergent will stay in the pipe and continue to contact the inner wall of the pipe to achieve a better cleaning or disinfection effect. After turning off the water pump, the water flow in the pipe is left to stand still, allowing the detergent to fully act in the pipe to ensure that the dirt or bacteria on the inner wall of the pipe are completely removed.

[0111] After the detergent is added, the control center controls the water flow through the pipe at a specific speed and direction by adjusting the working status of the water pump and valve. When the detergent flows in the pipe with the water and passes the first time, the control center turns off the water pump to allow the water in the pipe to stand for a period of time to ensure that the detergent is in full contact with the scale and takes effect. According to the set standing time, the detergent can fully dissolve the scale in the pipe.

[0112] Step 205, after the water pump is turned off to allow the water flow in the pipeline to stand still for a second time, the water pump is controlled to adjust the water flow speed in the pipeline to flush the pipeline, and the water flow in the pipeline is controlled to be discharged.

[0113] In this embodiment, the water pump is first turned off to stop the water flow in the pipeline, and the water flow in the pipeline is allowed to stand for a period of time (i.e., the second time) so that the detergent will stay in the pipeline and continue to contact the inner wall of the pipeline to achieve a better cleaning or disinfection effect. After the standing time is over, the water pump is restarted. The water flow rate in the pipeline is adjusted by controlling the rotation speed of the water pump or the opening of the valve. Generally, a higher water flow rate can more effectively flush impurities in the pipeline. After adjusting the water flow rate, the water is allowed to flow in the pipeline for a period of time to flush away the precipitated impurities. After the flushing is completed, the flushed water is discharged from the pipeline by controlling the drain valve or the drain pump. After confirming that the pipeline is flushed clean, the normal water supply or water flow rate is restored.

[0114] After the cleaning agent and the water flow in the pipe flow for the first time, turn off the water pump to stop the water flow in the pipe, and let the water flow in the pipe stand for a period of time (i.e. the second time) so that the cleaning agent in the pipe and the scale in the pipe can fully contact. Restart the water pump and adjust the water pump to flush the pipe. According to the cleaning needs of the pipe, adjust the output speed of the water pump to ensure that the water flow rate is high enough to effectively flush the impurities and wastewater in the pipe after cleaning. Generally, the water flow rate should be higher than the normal operating speed, but not too high to avoid damage to the pipe.

[0115] Maintain a high water flow rate for a period of time to ensure that impurities and sediments in the pipe are fully flushed, open the valve at the wastewater outlet to discharge the sewage and impurities generated during the cleaning process. Observe the discharged water flow to ensure that it gradually becomes clear, indicating that the impurities in the pipe have been effectively removed. When the drainage becomes clear, close the valve at the wastewater outlet to complete the flushing process and adjust the speed of the water pump back to the normal operating speed.

[0116] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0117] Reference Figure 3 , shows a structural block diagram of a water purifier provided by an embodiment of the present invention, which may specifically include the following modules:

[0118] Pipeline 30;

[0119] A scale detection module 31, used to detect the scale content in the pipeline;

[0120] A cleaning agent delivery module 32, used for delivering cleaning agent into the pipeline;

[0121] The cleaning control module 33 is used to determine whether to perform self-cleaning according to the scale content in the pipeline; when it is determined to perform self-cleaning, the cleaning agent delivery module is controlled to deliver cleaning agent to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow.

[0122] In this embodiment, a scale detection module 31 is provided in the pipe 30 of the water purifier. The scale detection module 31 monitors the scale condition in the flow channel in real time through components such as soluble solid probes to obtain the scale content in the water purifier pipe.

[0123] Two soluble solid probes are installed in the water purifier pipeline. The scale content in the pipeline is detected by the two soluble solid probes to obtain the scale conditions at two locations in the pipeline. A preset scale content threshold is set, and the obtained scale content is compared with the preset scale content threshold to determine whether the self-cleaning condition is met. If only one location meets the self-cleaning condition, the corresponding mode of cleaning is performed only on the location that meets the self-cleaning condition. If both locations meet the self-cleaning condition, self-cleaning is performed simultaneously.

[0124] It also includes: a water pump and a valve arranged on the pipeline;

[0125] The cleaning control module 33 is used to control the water pump to adjust the water flow speed in the pipeline, and control the valve to adjust the water flow direction in the pipeline, so that the cleaning agent flows in the pipeline along with the water flow.

[0126] In this embodiment, when it is determined to perform self-cleaning, detergent is added to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the detergent flows in the pipeline with the water flow. A suitable detergent is selected according to the pipeline material and dirt type (such as grease, minerals, biofilm, etc.), and the detergent is added to the pipeline using the detergent delivery module set by the system.

[0127] By adjusting the speed of the water pump or using a frequency converter to control the water flow speed, and using a valve to control the water flow direction, ensure that the detergent can cover all parts of the pipeline, so that the detergent flows in the pipeline with the water flow to ensure that the detergent is evenly distributed in the pipeline to avoid local concentrations that are too high or too low, so that the detergent can flow through every corner of the pipeline. According to the monitoring data, the amount of detergent, water flow speed and direction are automatically or manually adjusted to optimize the cleaning effect. After cleaning, flush the pipeline with clean water to remove residual detergent, and re-test the cleaning effect in the pipeline to ensure that the expected standards are met.

[0128] A cleaning delivery module is set in the pipeline. When the user issues a cleaning instruction and confirms self-cleaning, the detergent delivery module will deliver detergent into the pipeline. After the detergent is delivered, the control center adjusts the working status of the water pump and the valve to control the water flow through the pipeline at a specific speed and direction, so that the detergent flows in the pipeline with the water flow and stands for a period of time, ensuring that the detergent is fully in contact with the scale and takes effect.

[0129] The cleaning control module 33 is further used to control the water flow speed and direction in the pipeline so that the cleaning agent flows in the pipeline along with the water flow and after a first period of time, the water pump is turned off to make the water flow in the pipeline stationary.

[0130] In this embodiment, the water flow speed and direction in the pipeline can be controlled by starting the water pump, and the water pump starts working to push water (containing detergent) into the pipeline to ensure that the detergent can be evenly distributed in the pipeline and flow along the expected path. The speed and direction of the water flow can be controlled by adjusting the power of the water pump or the opening of the valve. After the predetermined first time, the water pump is turned off. At this time, the water flow in the pipeline stops flowing, and the detergent will stay in the pipeline and continue to contact the inner wall of the pipeline to achieve a better cleaning or disinfection effect.

[0131] After the detergent is added, the control center controls the water flow through the pipe at a specific speed and direction by adjusting the working status of the water pump and valve. When the detergent flows in the pipe with the water and passes the first time, the control center turns off the water pump to allow the water in the pipe to stand for a period of time to ensure that the detergent is in full contact with the scale and takes effect. According to the set standing time, the detergent can fully dissolve the scale in the pipe.

[0132] The cleaning control module 33 is also used to control the water pump to adjust the water flow speed in the pipeline to flush the pipeline and control the discharge of water in the pipeline after the water pump is turned off to allow the water flow in the pipeline to stand still for a second time.

[0133] In this embodiment, the water pump is first turned off to stop the water flow in the pipeline, and the water flow in the pipeline is allowed to stand for a period of time (i.e., the second time) so that the detergent will stay in the pipeline and continue to contact the inner wall of the pipeline to achieve a better cleaning or disinfection effect. The water flow rate in the pipeline is adjusted by controlling the speed of the water pump or the opening of the valve. After the flushing is completed, the flushed water is discharged from the pipeline by controlling the drain valve or the drain pump. After confirming that the pipeline is flushed clean, the normal water supply or water flow rate is restored.

[0134] After the cleaning agent and the water flow in the pipe flow for the first time, turn off the water pump to stop the water flow in the pipe, and let the water flow in the pipe stand for a period of time (i.e. the second time) so that the cleaning agent in the pipe and the scale in the pipe can fully contact. Restart the water pump and adjust the water pump to flush the pipe. According to the cleaning requirements of the pipe, adjust the output speed of the water pump to ensure that the water flow rate is high enough to effectively flush the impurities and wastewater in the pipe after cleaning.

[0135] Maintain a high water flow rate for a period of time to ensure that impurities and sediments in the pipe are fully flushed, open the valve at the wastewater outlet to discharge the sewage and impurities generated during the cleaning process. Observe the discharged water flow to ensure that it gradually becomes clear, indicating that the impurities in the pipe have been effectively removed. When the drainage becomes clear, close the valve at the wastewater outlet to complete the flushing process and adjust the speed of the water pump back to the normal operating speed.

[0136] The scale detection module 31 includes a soluble solid probe, which is disposed in the pipeline and is used to detect the scale content in the pipeline.

[0137] In this embodiment, before use, ensure that the TDS probe has been calibrated to ensure the accuracy of the measurement results, select a suitable detection point in the pipeline, ensure that the liquid flow is stable and undisturbed, set the TDS probe in the pipeline, ensure that the sensing part of the probe is completely immersed in the liquid, and the scale detection module controls the power supply of the TDS probe to turn on, start the measurement function and wait for a while until the probe is stable, and then obtain the read dissolved solids content.

[0138] Install the soluble solids probe in the water purifier pipe, connect it to the scale detection module, immerse the probe completely in the water of the water purifier pipe, record the measurement results, analyze the soluble solids content in the water sample based on the measurement results, and use it to obtain the scale content in the pipe.

[0139] The scale detection module 31 includes a pressure sensor, which is arranged in the pipeline and is used to detect the water pressure in the pipeline;

[0140] In this embodiment, a pressure sensor is set in the pipeline and the water pressure detected by it is obtained, which can further analyze and judge the scale situation in the pipeline. Select a location in the pipeline where the water flow is stable and easy to install and maintain, ensure that the sensor is tightly connected to the pipeline, and monitor the collected data in real time to obtain the reading of the pressure sensor in real time. Record the pressure data regularly to form time series data. Record the baseline pressure in the pipeline in the absence of scale. As scale accumulates, the pressure in the pipeline will gradually increase. Calculate the difference between the current pressure and the baseline pressure. The greater the pressure difference, the more scale has accumulated. Combined with the dissolved solids content data, further verify the accumulation of scale.

[0141] Install the pressure sensor in the water purifier pipe, measure the water pressure in the pipe, read and record the water pressure data, and analyze the changes in water pressure based on the measurement results.

[0142] The scale detection module 31 is used to determine the scale content in the pipeline according to the water pressure detected by the pressure sensor.

[0143] In this embodiment, a pressure sensor is used to regularly measure the water pressure in the pipeline, record the water pressure data, analyze the change trend of the water pressure data, and determine whether the water pressure increases over time. If the water pressure increases, it may indicate that there is scale accumulation in the pipeline. The scale content in the pipeline can be determined by calculation based on various parameters of the pipeline.

[0144] The cleaning control module 32 is used to compare the scale content in the pipeline with a preset scale content threshold; when the scale content is greater than the preset scale content threshold, determine to perform self-cleaning.

[0145] In this embodiment, the scale content measured by the soluble solid probe is compared with the preset scale content threshold to determine whether it exceeds the threshold. Based on the comparison result, it is determined whether self-cleaning or other maintenance measures are needed, and the comparison result is recorded, and analyzed and judged according to the actual situation. By comparing the scale content in the pipeline with the preset scale content threshold, it can be determined whether self-cleaning or other maintenance measures are needed. Regular monitoring and recording of scale content helps to timely detect and deal with scale problems, ensuring the normal operation of the pipeline and water quality safety.

[0146] The cleaning control module 32 is used to output a prompt message to the user when the scale content is greater than the preset scale content threshold; the prompt message is used to prompt the user whether to turn on self-cleaning; after detecting the self-cleaning instruction input by the user, determine to perform self-cleaning.

[0147] In this embodiment, the system compares the detected scale content with a preset scale content threshold value. If the detected scale content is greater than the preset threshold value, the output of the prompt information is triggered.

[0148] If the user confirms to turn on the self-cleaning mode, the system will start the self-cleaning program to inject a specific detergent into the water purifier pipe. The detergent will react with scale through the circulation system to dissolve the scale, and the cleaned liquid will be discharged from the water purifier. The inside of the pipe will be rinsed with clean water to ensure that the detergent residue is removed. After the self-cleaning program is completed, the system can send a confirmation message to the user.

[0149] When the control center confirms that the scale content in the pipeline is greater than the preset scale content threshold based on the received scale content data, the control center first sends a prompt message to the user, which is used to prompt the user whether to turn on self-cleaning and let the user decide whether to turn on the self-cleaning mode now.

[0150] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0151] Reference Figure 4 , showing a schematic diagram of water flow direction in a cleaning mode of a water purifier provided by an embodiment of the present invention;

[0152] The control center determines whether the self-cleaning conditions are met based on the received scale content data. When the first soluble solid probe detects that the scale detection data in the flow channel meets the cleaning conditions, the first self-cleaning mode is turned on. When the first cleaning mode is turned on, the solenoid valve 1, pulse counter 1, pressure regulating pump, waste water solenoid valve, and solenoid valve 2 in the water purifier are controlled to be turned on, and the check valve, pulse counter 2, water inlet solenoid valve 1, water inlet solenoid valve 2, and self-priming water pump are controlled to be turned off.

[0153] When the first cleaning mode is turned on, the detergent delivery module will deliver detergent into the pipeline. At the same time, water flows from the tap water inlet into the pipeline through the pressure reducing valve, passes through the pre-filter element of the composite filter element, and then passes through the first soluble solids probe, solenoid valve 1, pulse counter 1, and pressure regulating pump. After flowing through the pulse counter 1, a one-way valve pressure relief valve is provided in the diversion pipeline. Therefore, the water flow will flow directly to the pressure regulating pump and will not be diverted to the pressure relief valve.

[0154] After the water flows through the pressure-stabilizing pump, it passes through the RO membrane filter element, the detergent delivery module, the solenoid valve 2, the pressure relief valve and the pressure-stabilizing pump, and forms a circulating water flow in this part. When self-cleaning starts, it will circulate for a period of time and then stand still. During normal water production, it will also circulate in this part to reduce the pressure in the flow channel and avoid damaging the devices in the water channel. By controlling the speed of the pressure-stabilizing pump or the opening of the wastewater solenoid valve, the water flow speed and direction in the pipeline are adjusted. The control center adjusts the working status of the pressure-stabilizing pump and the wastewater solenoid valve, and adjusts the water pressure through the pressure-stabilizing pump to control the water flow through the pipeline at a specific speed, so that the detergent flows in the pipeline with the water flow and stands still for a period of time, ensuring that the detergent is fully in contact with the scale and takes effect.

[0155] During the cleaning process, the check valve is controlled to be closed, so that the water flows partially in the pipeline. After the water flows for a period of time, the water pressure is reduced to control the water flow to stand still so that the scale in the pipeline is fully in contact with the cleaning agent. The pipeline where the solenoid valve 1 is located is cleaned by the diffusion of the cleaning agent in the water molecules. Therefore, when cleaning the pipeline where the solenoid valve 1 is located, it will be left still for a long period of time and an appropriate amount of cleaning agent will be added. After the cleaning, the pressure regulating pump is controlled to increase the water pressure so that the cleaned wastewater is discharged from the wastewater outlet through the wastewater solenoid valve.

[0156] Reference Figure 5 , showing a schematic diagram of water flow direction in another cleaning mode of a water purifier provided by an embodiment of the present invention;

[0157] The control center determines whether the self-cleaning conditions are met based on the received scale content data. When the dissolved solid probe at the second location detects that the scale detection data in the flow channel meets the cleaning conditions, the second self-cleaning mode is turned on. When the second cleaning mode is turned on, the solenoid valve 1, pulse counter 1, pressure regulating pump, solenoid valve 2, pressure relief valve, check valve, pulse counter 2, water inlet solenoid valve 1, water inlet solenoid valve 2, and self-priming water pump are controlled to be turned on, and the wastewater solenoid valve is controlled to be closed. After cleaning is completed, the wastewater is discharged from the outlet of the cleaning control module.

[0158] When the second cleaning mode is turned on, the detergent delivery module will deliver detergent into the pipeline. At the same time, water flows from the tap water inlet into the pipeline through the pressure reducing valve, passes through the pre-filter of the composite filter element, and then passes through the first soluble solid probe, solenoid valve 1, pulse counter 1, and pressure regulating pump. After flowing through the pulse counter 1, a one-way valve pressure relief valve is provided in the diversion pipeline. Therefore, the water flow will flow directly to the pressure regulating pump and will not be diverted to the pressure relief valve.

[0159] After the water flows through the pressure-stabilizing pump, it passes through the RO membrane filter element, the detergent delivery module, the solenoid valve 2, the pressure relief valve and the pressure-stabilizing pump, and forms a circulating water flow in this part. When self-cleaning starts, it will circulate for a period of time and then stand still. During normal water production, it will also circulate in this part to reduce the pressure in the flow channel and avoid damaging the devices in the water channel.

[0160] At the same time, when the water flows through the solenoid valve 2, part of the water will flow to the post-filter element of the composite filter element, and then pass through the check valve, the temperature sensing package, the pulse counter 2, and then flow to the water inlet solenoid valve 1 and the water inlet solenoid valve 2 respectively and be discharged from the water outlet of the cleaning control module. When passing through the water inlet solenoid valve 2, it also needs to flow through the zero-pressure valve, the self-priming water pump, the heating tube and the scale detection module.

[0161] The control center adjusts the working status of the pressure-stabilizing pump and the wastewater solenoid valve, and controls the water flow through the pipe at a specific speed by adjusting the water pressure through the pressure-stabilizing pump, so that the detergent flows with the water in the pipe and stays still for a period of time, ensuring that the detergent is fully in contact with the scale and takes effect.

[0162] After the water flows for a period of time, the pressure regulating pump is controlled to reduce the water pressure and control the water flow to stand still so that the scale in the pipe can fully contact with the cleaning agent. The pipe where the solenoid valve 1 is located is cleaned by the diffusion of the cleaning agent in the water molecules, so when cleaning the pipe where the solenoid valve 1 is located, it will be left still for a longer period of time and an appropriate amount of cleaning agent will be added. The water circulation in other parts of the pipe is to ensure that the cleaning agent is fully in contact with each part of the pipe.

[0163] After the second cleaning mode is finished, the pressure regulating pump is controlled to increase the water pressure so that the cleaned waste water is discharged from the water outlet of the cleaning control module.

[0164] An embodiment of the present invention also provides a water purifier, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the various processes of the above-mentioned cleaning method embodiment of a water purifier are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0165] An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various processes of the above-mentioned cleaning method embodiment of a water purifier are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0166] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0167] It will be appreciated by those skilled in the art that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0168] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0169] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0170] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0171] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0172] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0173] The above is a detailed introduction to a cleaning method for a water purifier and a water purifier provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for cleaning a water purifier, characterized in that: The method comprises: Checking the scale content in the pipes of the water purifier; Determining whether to perform self-cleaning according to the scale content in the pipeline; When it is determined to perform self-cleaning, a cleaning agent is added to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow.

2. The method according to claim 1, characterized in that A water pump and a valve are provided in the pipeline, and the water flow speed and direction in the pipeline are controlled, including: The water pump is controlled to adjust the water flow speed in the pipeline, and the valve is controlled to adjust the water flow direction in the pipeline.

3. The method according to claim 1, characterized in that Also includes: The water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow, and after a first period of time has passed, the water pump is turned off to allow the water flow in the pipeline to remain stationary.

4. The method according to claim 3, characterized in that Also includes: After the water pump is turned off to allow the water flow in the pipeline to stand still for a second time, the water pump is controlled to adjust the water flow speed in the pipeline to flush the pipeline, and the water flow in the pipeline is controlled to be discharged.

5. The method according to claim 1, characterized in that: A soluble solid probe is arranged in the pipeline; and the step of checking the scale content in the pipeline of the water purifier comprises: obtaining the dissolved solid content in the pipeline detected by the dissolved solid probe; The scale content in the pipeline is determined according to the dissolved solid content.

6. The method according to claim 1, characterized in that A pressure sensor is arranged in the pipeline; and the step of checking the scale content in the pipeline of the water purifier comprises: Acquiring the water pressure detected by the pressure sensor; The scale content in the pipeline is determined according to the water pressure detected by the pressure sensor.

7. The method according to claim 1, characterized in that The step of determining whether to perform self-cleaning according to the scale content in the pipeline includes: comparing the scale content in the pipeline with a preset scale content threshold; When the scale content is greater than the preset scale content threshold, it is determined to perform self-cleaning.

8. The method according to claim 7, characterized in that When the scale content is greater than the preset scale content threshold, determining to perform self-cleaning includes: When the scale content is greater than the preset scale content threshold, outputting a prompt message to the user; the prompt message is used to prompt the user whether to turn on self-cleaning; After detecting a self-cleaning instruction input by the user, it is determined to perform self-cleaning.

9. A water purifier, characterized in that: include: pipeline; A scale detection module, used to detect the scale content in the pipeline; A cleaning agent delivery module, used for delivering cleaning agent into the pipeline; The cleaning control module is used to determine whether to perform self-cleaning according to the scale content in the pipeline; when it is determined to perform self-cleaning, the cleaning agent delivery module is controlled to deliver cleaning agent to the pipeline, and the water flow speed and direction in the pipeline are controlled so that the cleaning agent flows in the pipeline along with the water flow.

10. A water purifier, characterized in that: include: A processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of a method for cleaning a water purifier as described in any one of claims 1 to 8 are implemented.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of a method for cleaning a water purifier according to any one of claims 1 to 8 are implemented.

Images