CN116040703A

CN116040703A - Water purifier and water purifier control method

Info

Publication number: CN116040703A
Application number: CN202211537679.9A
Authority: CN
Inventors: 陈静; 詹婷; 陈子斌; 谢武彬; 宁贵勇; 李文灿
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-12-08
Filing date: 2022-12-02
Publication date: 2023-05-02
Anticipated expiration: 2042-12-02
Also published as: CN113979494A; CN116040703B; WO2023103602A1

Abstract

The application relates to a water purifier and a control method of the water purifier. The water purifier includes: the detection device is arranged in the water purifier and used for collecting water quality operation parameters of the water purifier; the controller is connected with the detection device, determines the predicted total water purifying amount of the water purifier according to at least two groups of water quality operation parameters, compares the predicted total water purifying amount with the designed total water purifying amount range, and controls the wastewater flow regulating device to regulate the wastewater flow of the water purifier when the predicted total water purifying amount is not in the designed total water purifying amount range; and the wastewater flow regulating device is connected with the controller and is used for regulating the wastewater flow of the water purifier in response to the control of the controller. The water purifier adjusts the wastewater flow of the water purifier by controlling the wastewater flow adjusting device, and can realize self-adaptive adjustment of the recovery rate of the water purifier according to the water quality of various places.

Description

Water purifier and water purifier control method

Technical Field

The present application relates to the field of water treatment technologies, and in particular, to a water purifier, a water purifier control method, a computer device, a storage medium, and a computer program product.

Background

Along with the development of scientific technology and the improvement of the living standard of people, the requirements of people on the quality of drinking water are more and more strict, and in recent years, the reverse osmosis water purifier is popular because the reverse osmosis water purifier can effectively remove various pollutants in tap water. At present, a part of water purifiers on the market is provided with a waste water proportional valve/device when leaving a factory, a part of water purifiers can be adjusted by an installer when being installed, then the waste water proportional valve/device is kept unchanged all the time in the use process of the water purifiers, and the recovery rate of the corresponding water purifiers is also a fixed value.

However, in the actual installation and use process of the water purifier, the recovery rate is a set fixed value, so that the problem that the filter element is blocked quickly in areas with poor water quality and water is wasted in areas with good water quality is easily caused.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a water purifier, a water purifier control method, a computer device, a storage medium, and a computer program product.

In a first aspect, the present application provides a water purifier, the water purifier comprising:

the detection device is used for collecting water quality operation parameters of the water purifier;

the controller is connected with the detection device, determines the expected total water purifying amount of the water purifier according to at least two groups of water quality operation parameters, compares the expected total water purifying amount with a designed total water purifying amount range, and controls the wastewater flow regulating device to regulate the wastewater flow of the water purifier when the expected total water purifying amount is not in the designed total water purifying amount range;

the wastewater flow regulating device is connected with the controller and responds to the control of the controller to regulate the wastewater flow of the water purifier; the wastewater flow is inversely related to the water quality.

In a second aspect, the present application further provides a water purifier control method, where the method includes:

Collecting water quality operation parameters of the water purifier;

determining the predicted total water purifying amount of the water purifier according to at least two groups of water quality operation parameters;

and according to the comparison between the predicted total water purifying quantity and the designed total water purifying quantity range, when the predicted total water purifying quantity is not in the designed total water purifying quantity range, controlling a waste water flow regulating device to regulate the waste water flow of the water purifier.

In a third aspect, the present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the above-described method.

In a fourth aspect, the present application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the method described above.

According to the water purifier, the total water purifying amount is estimated according to at least two sets of water quality operation parameters of purified water in the water purifier, so that the influence of water quality on the water purifying capacity of the water purifier can be reflected, when the total water purifying amount is estimated not to be in the range of the designed total water purifying amount of the water purifier, namely smaller than the lower limit of the range of the designed total water purifying amount or larger than the upper limit of the range of the designed total water purifying amount, the water purifying capacity is indicated to be influenced by local water quality and not to be in the range of the designed total water purifying amount, the wastewater flow of the water purifier can be adjusted by controlling the wastewater flow adjusting device, and the self-adaptive adjustment of the recovery rate of the water purifier according to the water quality in various places can be realized.

Drawings

FIG. 1 is a schematic diagram of a water purifier according to an embodiment;

FIG. 2 is a schematic diagram of the reverse osmosis water purifier operation in one embodiment;

FIG. 3 is a schematic diagram of an embodiment of an adjustable waste valve having multiple flow passages;

FIG. 4 is a schematic diagram of an adjustable waste valve having various sized flow openings in one embodiment;

FIG. 5 is a schematic illustration of the construction of an adjustable waste valve spool having various sized flow openings in one embodiment;

FIG. 6 is a schematic structural view of an upper valve plate of the stepless regulating valve in one embodiment;

FIG. 7 is a schematic view of the structure of a lower valve plate of the stepless regulating valve in one embodiment;

FIG. 8 is a schematic diagram of a water purifier according to another embodiment;

FIG. 9 is a flow chart of a method of controlling a water purifier according to an embodiment;

fig. 10 is an internal structural view of a computer device in one embodiment.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.

In one embodiment, as shown in fig. 1, a common water purifier includes a raw water inlet, a pre-filter element, a water inlet electromagnetic valve, a pressure stabilizing pump, a reverse osmosis membrane filter element, a post-filter element, a waste water outlet, a purified water outlet, a water flowing branch between the above components, and the like.

Wherein, the front filter element is an important water purifying part in the water purifier and is generally connected with a raw water inlet of the water purifier. Raw water to be filtered enters the water purifier from the raw water inlet, and the front filter element of the water purifier performs first filtering operation on the raw water to filter out sediment, rust, bacteria, colloid, most organic matters and other harmful substances in the raw water, so as to obtain raw water subjected to the first filtering operation.

The reverse osmosis membrane filter core is the core part of the reverse osmosis water purifier. The water purifying schematic diagram of the reverse osmosis water purifier is shown in fig. 2, raw water after the first filtering operation flows through the water inlet electromagnetic valve and the pressure stabilizing pump of the water purifier, the pressure stabilizing pump applies certain pressure to the raw water, so that water molecules and ionic mineral elements pass through the reverse osmosis membrane filter element and are filtered into drinkable purified water, and most inorganic salts (including heavy metals), organic matters, bacteria and virus substances dissolved in the water cannot pass through the reverse osmosis membrane filter element, so that the drinkable wastewater is formed. The drinkable purified water continuously passes through the rear filter element through the purified water outlet after passing through the purified water outlet branch. Non-potable waste water flows out of the waste water port via the waste water branch.

Based on this, in this embodiment, there is provided a water purifier including:

and the detection device 102 is used for collecting water quality operation parameters of the water purifier.

The detection device 102 is disposed in the reverse osmosis water purifier, and the specific position is not limited herein, as long as the water quality operation parameter of the purified water of the water purifier can be obtained through detection data. Taking the water quality operation parameter as a flow parameter example, if the detection device 102 is arranged on a water producing branch of a reverse osmosis membrane filter element of the water purifier, detecting water flowing through the water producing branch, wherein the obtained flow parameter is the flow parameter of purified water of the water purifier; if the detection device 102 is disposed on the water inlet branch of the reverse osmosis membrane filter element of the water purifier, it detects water flowing through the water inlet branch, and the obtained flow parameter is the flow parameter of the water entering the reverse osmosis membrane filter element, at this time, the purified water flow parameter of the water purifier can be obtained by subtracting the current wastewater flow parameter of the water purifier from the detected water inlet flow parameter, where the current wastewater flow parameter of the water purifier is known. Preferably, in this embodiment, the detection device 102 is disposed on the water producing branch 101 of the reverse osmosis membrane filter element.

Specifically, the detection device 102 can detect the water flowing on the water producing branch 101 of the reverse osmosis membrane filter element in real time to obtain the water quality operation parameter. In the present application, the detection device may be a sensor device, or may be any detection device, as long as it can detect and collect the water quality operation parameter of water in the water purifier, which is not limited in this application.

The water quality operation parameters are the water quality parameters of the purified water after the raw water flowing through the water purifier is filtered by each filter element in the operation process of the water purifier. It can be understood that the parameters specifically contained in the water quality operation parameters can be one type or multiple types, different types of detection devices can be adopted for detecting and collecting the water quality parameters aiming at each type of parameters, and meanwhile, the specific setting positions of the detection devices are not unique, so long as the different water quality parameters of purified water can be reasonably collected.

Specifically, in the operation process of the water purifier, the detection device 102 arranged on the water producing branch 101 of the reverse osmosis membrane filter element can perform water quality detection on water flowing on the water producing branch 101, and corresponding water quality operation parameters are obtained and collected. The detection device 102 is connected with the controller 104, and can transmit the collected water quality operation parameters to the controller 104. Because the detection device 102 is disposed on the water producing branch 101 of the reverse osmosis membrane filter element of the water purifier, the water quality operation parameter detected in the present application is the water quality operation parameter of the purified water produced by the water purifier.

And the controller 104 is connected with the detection device 102, determines the predicted total water purifying amount of the water purifier according to at least two sets of water quality operation parameters, compares the predicted total water purifying amount with the designed total water purifying amount range, and controls the wastewater flow regulating device 106 to regulate the wastewater flow of the water purifier when the predicted total water purifying amount is not in the designed total water purifying amount range.

The predicted total water purifying amount of the water purifier is the total water purifying amount of the reverse osmosis membrane filter element which is predicted according to at least two groups of water quality operation parameters obtained by current detection, and the predicted total water purifying amount of the reverse osmosis membrane filter element of the water purifier can be reached when the reverse osmosis membrane filter element of the water purifier performs water purifying operation within the preset service life of the water purifier under the current water quality.

The designed total purified water amount of the water purifier is the total purified water amount which can be achieved by the reverse osmosis membrane filter element of the water purifier when the purified water flow of the water purifier is higher than the preset nominal purified water flow within the service life of the preset water purifier. It will be appreciated that the total net water is not a constant but rather a range, including upper and lower limits.

After the raw water in the water purifier is subjected to purification treatment such as reverse osmosis, waste water containing more impurities and purified water which can be used for drinking can be obtained, and the recovery rate of the water purifier refers to the ratio of purified water produced by the water purifier to the raw water.

The water purifier recovery rate is calculated in the following way:

X _{recovery rate} ＝V _{Flow rate of purified water} /(V _{Flow rate of purified water} +V _{Flow rate of waste water} )，

Wherein X is _{Recovery rate} Indicating recovery rate of water purifier, V _{Flow rate of purified water} Represents the data of the flow rate of the purified water, V _{Flow rate of waste water} Representing wastewater flow data.

Specifically, the controller 104 determines the predicted total net water amount of the water purifier according to the water quality operation parameter, compares the predicted total net water amount with the range of the designed total net water amount of the water purifier, and when the predicted total net water amount is smaller than the range of the designed total net water amount or the predicted total net water amount is larger than the range of the designed total net water amount, i.e. the predicted total net water amount is not within the range of the designed total net water amount, the controller 104 generates a control adjustment instruction and sends the control adjustment instruction to the wastewater flow adjustment device 106. The wastewater flow rate adjusting device 106 is controlled to adjust the wastewater flow rate of the water purifier, and the proportion of the purified water of the water purifier in the raw water amount can be adjusted by adjusting the wastewater flow rate, so that the recovery rate of the water purifier is adjusted.

And the wastewater flow regulating device 106 is connected with the controller 104 and is used for regulating the wastewater flow of the water purifier in response to the control of the controller 104.

The wastewater flow rate adjusting device 106 is a device capable of adjusting the wastewater flow rate of the water purifier. It will be appreciated that in this embodiment, the wastewater flow regulating device 106 is disposed on the wastewater branch 103 of the reverse osmosis membrane cartridge.

Specifically, the wastewater flow rate adjustment device 106 executes a wastewater flow rate adjustment scheme corresponding to the control adjustment command after receiving the control adjustment command sent by the controller 104, and adjusts the wastewater flow rate of the water purifier.

In the above water purifier, the predicted total purified water amount of the water purifier is determined according to at least two sets of water quality operation parameters of purified water in the water purifier, so that the influence of water quality on the water purifying capacity of the water purifier can be reflected, when the predicted total purified water amount is not in the range of the designed total purified water amount of the water purifier, namely smaller than the lower limit of the designed total purified water amount range or larger than the upper limit of the designed total purified water amount range, the water purifying capacity is influenced by local water quality, so that the water purifying capacity is not in the designed total purified water amount range, and the self-adaptive regulation of the recovery rate of the water purifier can be realized according to the water quality in all places by controlling the waste water flow regulating device to regulate the waste water flow of the water purifier.

In one embodiment, the controller 104 controls the wastewater flow regulating device 106 to increase the wastewater flow when the predicted total purified water amount is less than the lower limit of the designed total purified water amount range.

As described in the background art, in the process of actually installing and using the reverse osmosis water purifier in the prior art, the problem of unstable water purification performance is easy to occur because the recovery rate is a fixed value, and the inventor researches have found that the problem occurs because the water quality is greatly different in all regions of the country, and meanwhile, the water quality in all regions is easy to change due to weather or other reasons even in the same region. For example, the conventional fixed water purification proportional valve is easy to cause the problems of blockage of a waste water valve and blockage of a reverse osmosis filter membrane in areas with poor water quality.

Based on this, in this embodiment, after calculating the estimated total water purifying amount according to at least two sets of water quality operation parameters, the controller 104 compares the estimated total water purifying amount with the range of the designed total water purifying amount, and when the estimated total water purifying amount is smaller than the lower limit of the range of the designed total water purifying amount, it indicates that the quality of raw water passing through the water purifier is poor at present, the recovery rate of the initial setting of the water purifier is high, and the problem that the water purifier generates a waste water valve or a reverse osmosis filter membrane to be jammed due to scaling needs to be prevented by reducing the recovery rate. The controller 104 generates an increase wastewater flow control command, and transmits the increase wastewater flow control command to the wastewater flow regulator 106, thereby controlling the wastewater flow regulator 106 to increase the wastewater flow of the water purifier. The proportion of purified water generated by the water purifier in raw water can be reduced by increasing the flow of the wastewater, so that the recovery rate of the water purifier is reduced, and the problem that a wastewater valve or a reverse osmosis filter membrane is blocked due to scaling is prevented.

In one embodiment, the controller 104 determines a current wastewater flow gear when the predicted total purified water amount is less than the lower limit of the designed total purified water amount range; when the current wastewater flow gear is not the maximum gear, the wastewater flow gear is increased.

Wherein, the wastewater flow gear is related to the wastewater flow, and the lower the wastewater flow gear is, the smaller the wastewater flow is; the higher the wastewater flow gear, the greater the wastewater flow through. The waste water flow gear can be the gear of the waste water valve, namely different waste water valve gears correspond to different waste water flows, and at the moment, the waste water flow gear can be adjusted through the waste water valve. It can be understood that the specific number of the wastewater flow gears can be set according to the actual conditions and the actual water quality conditions of the water purifier, and the application is not limited to the specific number.

Specifically, when the predicted total purified water amount is less than the lower limit of the designed total purified water amount range, the controller 104 first determines a current water purifier wastewater flow gear, generates an increase wastewater flow gear adjustment control command when the current wastewater flow gear is not the maximum gear, and sends the adjustment control command to the wastewater flow adjustment device 106, and the wastewater flow adjustment device 106 increases the wastewater flow gear by one gear in response to the increase wastewater flow gear adjustment control command. Specifically, a larger waste water flow passage can be opened, the opening degree of a waste water valve can be increased, and a waste water valve passage can be increased.

And if the current wastewater flow gear is the maximum gear, keeping the current wastewater flow gear unchanged. The proportion of purified water generated by the water purifier in raw water is reduced by increasing the flow gear of the wastewater, so that the recovery rate of the water purifier is reduced to prevent the problem that a wastewater valve or a reverse osmosis filter membrane is jammed due to scaling.

In one embodiment, the controller 104 controls the wastewater flow regulating device 106 to reduce the wastewater flow when the predicted total purified water amount is greater than the upper limit of the designed total purified water amount range.

The traditional fixed water purifying proportional valve is easy to waste water resources in areas with good water quality. In this embodiment, after calculating the predicted total water purifying amount according to at least two sets of water quality operation parameters, the controller 104 compares the predicted total water purifying amount with the range of the designed total water purifying amount, and when the predicted total water purifying amount is greater than the upper limit of the range of the designed total water purifying amount, it indicates that the raw water quality of the water passing through the water purifier is better, the recovery rate of the initial setting of the water purifier is lower, and the problem of wasting water resources of the water purifier in the water purifying process needs to be prevented by improving the recovery rate. The controller 104 generates a wastewater flow reduction control command, and transmits the wastewater flow reduction control command to the wastewater flow adjustment device 106, thereby controlling the wastewater flow adjustment device 106 to reduce the wastewater flow of the water purifier. The proportion of purified water generated by the water purifier in raw water can be increased by reducing the flow of the wastewater, so that the recovery rate of the water purifier is improved, and the problem that the water purifier is easy to cause waste of water resources in areas with good water quality is solved.

In one embodiment, the controller 104 determines a current wastewater flow gear when the predicted total purified water amount is greater than an upper limit of the designed total purified water amount range; when the current waste water flow gear is not the minimum gear, the waste water flow gear is reduced.

Specifically, when the predicted total purified water amount is greater than the upper limit of the designed total purified water amount range, the controller 104 first determines a current water purifier wastewater flow gear, generates a step-down wastewater flow gear adjustment control command when the current wastewater flow gear is not the minimum gear, and sends the adjustment control command to the wastewater flow adjustment device 106, and the wastewater flow adjustment device 106 decreases the wastewater flow gear by one gear in response to the step-down wastewater flow gear adjustment control command. And if the current wastewater flow gear is the minimum gear, keeping the current wastewater flow gear unchanged. According to the embodiment, the proportion of purified water generated by the water purifier in raw water is increased by reducing the flow gear of the wastewater, so that the recovery rate of the water purifier is improved, and the problem that the water purifier is easy to cause waste of water resources in areas with good water quality is solved.

When the wastewater flow gear is increased or decreased, the step-by-step adjustment is not limited, and the controller 104 may also control the wastewater flow adjusting device 106 to perform the step-by-step adjustment on the current wastewater flow gear according to the difference between the preset total purified water amount and the designed total purified water amount.

Specifically, when the controller 104 determines that the predicted total purified water amount is less than the lower limit of the designed total purified water amount, or that the predicted total purified water amount is greater than the upper limit of the designed total purified water amount, the wastewater flow adjustment device 106 is controlled to perform the shift adjustment on the current wastewater flow gear according to the difference between the predicted total purified water amount and the designed total purified water amount. For example, if the predicted total purified water amount is less than the lower limit of the designed total purified water amount and the predicted total purified water amount is greater than the designed total purified water amount, the wastewater flow regulating device 106 may be controlled to increase the current wastewater flow gear by two or more gears. By using the method in this embodiment, when the difference between the predicted total purified water amount and the designed total purified water amount is large, the waste water adjusting device 106 can be directly controlled to adjust the waste water flow gear to a proper gear, and the waste water flow gear does not need to be adjusted step by step, so that the whole adjusting process is more flexible and convenient.

In the above embodiment, when the controller determines that the predicted total water purifying amount is smaller than the lower limit of the designed total water purifying amount, or the predicted total water purifying amount is larger than the upper limit of the designed total water purifying amount, the controller generates a corresponding control instruction for increasing or decreasing the wastewater flow, and adjusts the wastewater flow of the water purifier by controlling the wastewater flow adjusting device, so that the proportion of purified water in the raw water amount can be adjusted, and further the recovery rate of the water purifier is adjusted, thereby realizing the self-adaptive adjustment of the recovery rate of the water purifier, and further solving the problems that the filter element of the water purifier is blocked fast in the water quality difference area and the water is wasted in the water quality good area.

In one embodiment, the sensing device comprises a flow sensor; the water quality operating parameter includes a flow rate of the purified water.

When the water purifying tap is opened, the water purifying flow rate is the water passing through the flow sensor in unit time detected by the flow sensor.

Specifically, when the purified water flows through the flow sensor, the flow sensor generates corresponding pulses, and the corresponding purified water flow can be calculated according to the number of the pulses generated correspondingly in unit time. For example, the amount of water per unit pulse is 0.15L, and if the flow sensor detects 20 pulses per unit time, the corresponding purified water flow rate data is 0.15×20=3l/min.

The controller can obtain the water purification flow trend in the water purifier according to at least two groups of water purification flows obtained by the detection device, so as to calculate and obtain the predicted total water purification amount, the predicted total water purification amount is compared with the range of the designed total water purification amount, when the predicted total water purification amount is not in the range of the designed total water purification amount of the water purifier, the wastewater flow of the water purifier is regulated by controlling the wastewater flow regulating device, and the self-adaptive regulation of the recovery rate of the water purifier according to the water quality in all places can be realized.

In one embodiment, the detection device further comprises: a temperature sensor; the water quality operation parameters also comprise water temperature; the controller calculates and obtains the accumulated total water purifying quantity and the corrected water purifying flow according to the water purifying flow, the water temperature and the preset temperature correction coefficient;

the preset temperature correction coefficient is a temperature characteristic parameter of the reverse osmosis membrane and is a dimensionless parameter, and the main purpose of the temperature correction coefficient is to correct the purified water flow when the temperature is 25 ℃ so as to obtain corrected purified water flow data. It will be appreciated that the preset temperature correction factor is not fixed, and its specific value changes according to the actual temperature when the current water purifier is used, and one preset temperature correction factor is shown in table 1, where the preset temperature correction factor has a value of 1 at 25 ℃, a value of greater than 1 when the temperature is lower than 25 ℃, and a value of less than 1 when the temperature is higher than 25 ℃.

TABLE 1 preset temperature correction coefficient

The accumulated total water purifying amount is obtained by converting the accumulated pulse number detected by the flow sensor into total water purifying amount, the sum of all pulse numbers detected by the flow sensor from the time when the water purifier is just started to be installed and used to the current detection time is the accumulated pulse number, and the accumulated total water purifying amount from the time when the water purifier is started to be used to the current detection time can be calculated according to the unit water purifying amount corresponding to the unit pulse number of the flow sensor. For example, if the unit water consumption per unit pulse is 0.15L and the accumulated pulse number recorded by the flow sensor is 50000, the accumulated total water consumption per water purifier is 0.15×50000=7500L.

The corrected water purifying flow is the current water purifying flow of the water purifier at the temperature of 25 ℃. Specifically, the temperature sensor detects the temperature of water flowing through the temperature sensor, water temperature data of purified water is obtained according to detected data, and corrected purified water flow can be obtained through calculation according to purified water flow collected by the flow sensor, water temperature and a preset temperature correction coefficient.

In one embodiment, the calculation formula for correcting the flow rate of purified water is:

Q _{correcting the flow rate of purified water} ＝Q _{Flow rate of purified water} ×K _{Preset temperature correction coefficient} (T _{Water temperature} )，

Wherein Q is _{Correcting the flow rate of purified water} Corrected water flow data representing the current detection time, Q _{Flow rate of purified water} Represents the current purified water flow data at the detection moment, K _{Preset temperature correction coefficient} Representing a preset temperature correction coefficient, T _{Water temperature} Water temperature data representing the current detection time of purified water.

Specifically, according to the data detected and collected by the flow sensor and the temperature sensor in the detection device, the water purifying flow and the water temperature of the water purifier are obtained, the accumulated total water purifying amount of the water purifier is calculated according to the water purifying flow of the water purifier, and the corrected water purifying flow of the water purifier is calculated according to the water purifying flow of the water purifier, the water temperature and the preset temperature correction coefficient.

Calculating an attenuation coefficient based on at least two groups of accumulated total water purifying quantity and the corrected purified water flow meter;

the attenuation coefficient refers to the flow attenuation coefficient of the reverse osmosis membrane, and the attenuation coefficient can reflect the speed of the water flow attenuation degree of the reverse osmosis filter element of the water purifier. The attenuation coefficient is generally negative, and the larger the absolute value of the attenuation coefficient is, the faster the attenuation of the purified water flow of the filter element is.

Specifically, the controller calculates at least two groups of accumulated total water purifying quantity and corrected water purifying flow through the water purifying flow, the water temperature and the preset temperature correction coefficient which are detected and collected by the detection device. It can be understood that any two sets of the total accumulated water purifying amount and the corrected water purifying amount are detected within a preset time interval. And calculating the attenuation coefficient according to at least two groups of accumulated total water purifying quantity and the corrected purified water flowmeter.

In one embodiment, the attenuation coefficient is calculated by:

wherein B is _{i attenuation coefficient} For the attenuation coefficient data of the current detection moment, L _{i accumulated total purified water quantity} For the accumulated total water purifying amount data at the current detection moment, Q _{i correcting the flow rate of purified water} And correcting the purified water flow data at the current detection moment.

Average total water quantity calculated for a plurality of groups of total water quantities, < > >

Average corrected purified water flow calculated for a plurality of sets of corrected purified water flows,/->

And->

The calculation formula of (2) is as follows:

wherein i is the number of groups corresponding to the integrated total water purification amount and the corrected water purification amount used for calculating the attenuation coefficient.

And calculating to obtain the expected total purified water amount according to the attenuation coefficient, the accumulated total purified water amount, the corrected purified water flow and the preset nominal purified water flow.

The nominal purified water flow is the theoretical purified water flow marked according to the performance of the water purifier when the water purifier leaves a factory.

In one embodiment, the calculation formula for the total net water volume is expected to be:

E _{total water purification amount is estimated} ＝(B _{Nominal flow rate of purified water} -Q _{i correcting the flow rate of purified water} )/B _{i attenuation coefficient} +L _{i accumulated total purified water quantity} ，

Wherein E is _{Total water purification amount is estimated} For the predicted total water purifying amount data at the current detection moment, B _{Nominal flow rate of purified water} For nominal clean water flow data, Q _{i correcting the flow rate of purified water} For correcting the purified water flow data at the current detection moment, B _{i attenuation coefficient} For the attenuation coefficient data of the current detection moment, L _{i accumulated total purified water quantity} And the accumulated total water purifying amount data at the current detection moment.

Specifically, the controller calculates the estimated total purified water amount according to the attenuation coefficient, the accumulated total purified water amount, the corrected purified water flow amount and the preset nominal purified water flow amount.

In the above embodiment, the flow sensor and the temperature sensor in the detection device detect water quality of water flowing through the water purifier to obtain purified water flow and water temperature of purified water in the water purifier, the collected purified water flow and water temperature are transmitted to the controller, the controller calculates an accumulated total purified water volume and a corrected purified water flow of the water purifier according to the received purified water flow and water temperature and a preset temperature correction coefficient, calculates an attenuation coefficient based on at least two groups of the accumulated total purified water volume and the corrected purified water flow, and calculates an estimated total purified water volume according to the attenuation coefficient, the accumulated total purified water volume, the corrected purified water flow and a preset nominal purified water volume. By using the method in the embodiment, the expected total purified water amount can be obtained according to the water quality parameter detected in real time, so that the expected total purified water amount can be ensured to reflect the influence of the water quality on the water purifying capacity of the water purifier.

In one embodiment, a wastewater flow regulating device includes: the adjustable waste water valve is arranged on the waste water branch and is used for adjusting the waste water flow.

The waste water valve is an important part in water purifying equipment such as a water purifier, and mainly aims to timely discharge waste water generated in the filtering process, prevent filter element scaling caused by enrichment of waste water in the filter element, and regulate the internal pressure of the filter element to enable the filter element to work normally. It is understood that the adjustable waste water valve is a waste water valve capable of adjusting the flow rate of waste water when the waste water passes through. The waste water flow of the water purifier can be adjusted by adjusting the adjustable waste water valve.

In one embodiment, the adjustable waste water valve has a plurality of flow passages corresponding to a plurality of flow steps or flow openings of various sizes corresponding to a plurality of flow steps.

As shown in fig. 3, the adjustable waste water valve may have a plurality of flow channels, where the plurality of flow channels are arranged side by side, and each flow channel is provided with a corresponding gear switch valve and a shutoff hole. The waste water flow through which each flow channel can pass is different in size, the water inlet of each flow channel is connected with the waste water inlet of the waste water branch, and the water outlet of each flow channel is connected with the waste water outlet of the waste water branch. The waste water flow gear when the water purifier operates corresponds to the flow channel opened by the waste water valve when the water purifier operates.

Taking a water purifier with three wastewater flow gears as an example, an adjustable wastewater valve of the water purifier is provided with three wastewater flow channels, each wastewater flow channel is provided with a switch valve and a cutoff hole, and when the switch valve is opened, the corresponding wastewater flow channel is communicated; and when the switch valve is closed, the corresponding waste water flow channel is closed. If the water purifier starts the first flow channel in the running process, the wastewater flow gear of the water purifier is considered to be 1 gear at the moment; starting a second flow channel, and considering that the wastewater flow gear of the water purifier is 2 at the moment; and (3) opening the third flow passage, and considering that the wastewater flow gear of the water purifier is 3 at the moment. Wherein the flow passage sizes from 1 st gear to 3 rd gear are sequentially increased.

Specifically, when the controller compares the predicted total water purification amount with the designed total water purification amount range, and when the predicted total water purification amount is smaller than the lower limit of the designed total water purification amount range, determining the current wastewater flow gear of the water purifier, and if the wastewater flow gear is at the maximum gear at this time, namely the wastewater flow gear is at 3 gears at this time, keeping the current wastewater flow gear unchanged; if the wastewater flow gear is not at the maximum gear at this moment, namely when the wastewater flow gear is at the 2 th gear or the 1 st gear, generating an increasing wastewater flow gear adjusting control instruction, controlling the wastewater adjusting device to open a switching valve of a 3 rd gear or 2 th gear flow channel, and closing the switching valve of the 2 th gear or 1 st gear flow channel, so as to achieve the effect of increasing the wastewater flow gear by one gear.

When the controller compares the predicted total purified water amount with the designed total purified water amount range, determining the current wastewater flow gear of the water purifier when the predicted total purified water amount is larger than the upper limit of the designed total purified water amount range, and if the wastewater flow gear is at the minimum gear at the moment, namely the wastewater flow gear is at the 1 st gear at the moment, keeping the current wastewater flow gear unchanged; if the wastewater flow gear is not at the minimum gear at this moment, namely when the wastewater flow gear is at the 2 nd gear or the 3 rd gear at this moment, a control instruction for adjusting the wastewater flow gear is generated, the wastewater adjusting device is controlled to open the on-off valve of the 1 st gear or the 2 nd gear flow channel, and the on-off valve of the 2 nd gear or the 3 rd gear flow channel is closed, so that the effect of reducing the wastewater flow gear by one gear is achieved.

The adjustable waste water valve is further provided with a flushing flow channel and a flushing switch valve arranged on the flushing flow channel, and the flushing flow channel and the waste water flow channel are arranged side by side. When the flushing switch valve is opened, the water purifier is considered to be in a flushing state.

The adjustable waste water valve can also be a waste water valve with various flow openings as shown in fig. 4 and 5. Specifically, the larger the size of the waste valve flow opening, the greater the waste flow that can be passed. When the adjustable waste water valve is used, one flow opening is controlled to be in a conducting state, and other flow openings are not conducted. The waste water flow gear when the water purifier operates corresponds to the flow opening connected with the water inlet of the waste water branch during operation.

Taking a water purifier with three waste water flow gears as an example, the adjustable waste water valve of the water purifier is provided with a waste water inlet, three waste water outlets with flow openings of different sizes, the sizes of the three flow openings are sequentially increased according to a preset proportion, and each waste water outlet is provided with a corresponding waste water flow passage and a valve needle. When the water purifier is in an operating state, one of the flow openings is controlled to be in a conducting state by the adjustable waste water valve, the other flow openings are not conducted, and waste water produced by the water purifier is discharged from a waste water outlet corresponding to the conducted flow opening. When the flow opening with the smallest size of the control opening of the adjustable waste water valve is in a conducting state, the waste water flow gear of the water purifier is regarded as 1 gear; when the adjustable waste water valve controls the flow opening with the opening size being medium to be in a conducting state, the waste water flow gear of the water purifier is considered to be 2 gears; when the flow opening with the largest opening size is controlled by the adjustable waste water valve to be in a conducting state, the waste water flow gear of the water purifier is considered to be 3.

Specifically, when the controller compares the predicted total water purification amount with the designed total water purification amount range, and when the predicted total water purification amount is smaller than the lower limit of the designed total water purification amount range, determining the current wastewater flow gear of the water purifier, and if the wastewater flow gear is at the maximum gear at this time, namely the wastewater flow gear is at 3 gears at this time, keeping the current wastewater flow gear unchanged; if the wastewater flow gear is not at the maximum gear at this moment, namely when the wastewater flow gear is at 2 or 1, generating an increasing wastewater flow gear adjusting control instruction, controlling the wastewater adjusting device to close the current flow opening, and conducting the flow opening which is one level larger than the current flow opening in size, thereby achieving the effect of increasing the wastewater flow gear by one gear through increasing the size of the flow opening.

When the controller compares the predicted total purified water amount with the designed total purified water amount range, determining the current wastewater flow gear of the water purifier when the predicted total purified water amount is larger than the upper limit of the designed total purified water amount range, and if the wastewater flow gear is at the minimum gear at the moment, namely the wastewater flow gear is at the 1 st gear at the moment, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the minimum gear at this moment, namely when the waste water flow gear is at 2 or 3, a waste water flow gear adjusting control instruction is generated, the waste water adjusting device is controlled to close the current flow opening, the flow opening smaller than the current flow opening in size by one step is conducted, and the effect of reducing the waste water flow gear by one gear is achieved by reducing the size of the flow opening.

In one embodiment, the adjustable waste water valve is further provided with a flushing water outlet, and when the adjustable waste water valve closes the flow openings with all the sizes and the flushing water outlet is conducted, the water purifier is considered to be in a flushing state.

In one embodiment, the adjustable waste valve may also be a stepless regulating valve. The stepless regulating valve is a solenoid valve with a plurality of different flow gears, and when the flow gears are regulated, the stepless regulating valve belongs to stepless regulation, and can regulate the flow in a certain range at any size. As shown in fig. 6 and 7, the stepless regulating valve is provided with an upper valve plate and a lower valve plate, and the upper valve plate is provided with a flow passage with a fixed size; the size of the water flowing channel on the lower valve plate is in a changing trend, such as gradually increasing or gradually decreasing. When the device is used, the waste water flows through the flow channels corresponding to the lower valve plates at different positions by adjusting the positions corresponding to the upper valve plate channels and the lower valve plate channels.

Specifically, when the controller compares the predicted total water purification amount with the designed total water purification amount range, and when the predicted total water purification amount is smaller than the lower limit of the designed total water purification amount range, determining the current wastewater flow gear of the water purifier, and if the wastewater flow gear is at the maximum gear at this time, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the maximum gear at this time, generating an increasing waste water flow gear adjusting control instruction, controlling the positions of the upper valve block channel and the lower valve block channel of the stepless adjusting valve, and moving the positions of the upper valve block channel to the area with larger waste water flow in the lower valve block channel, so as to achieve the effect of increasing the waste water flow gear by one gear.

When the controller compares the predicted total purified water amount with the designed total purified water amount range, determining the current wastewater flow gear of the water purifier when the predicted total purified water amount is larger than the upper limit of the designed total purified water amount range, and if the wastewater flow gear is at the minimum gear at the moment, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the minimum gear at this time, a gear adjusting control instruction for reducing the waste water flow is generated, the positions of the upper valve block channel and the lower valve block channel of the stepless adjusting valve are controlled to correspond, the positions of the upper valve block channel are moved to the area with smaller waste water flow in the lower valve block channel, and the effect of reducing the waste water flow gear by one gear is achieved.

In one embodiment, as shown in fig. 8, the wastewater flow regulating device 106 includes: a wastewater flow reflux device 201 and a wastewater valve 202 provided on the wastewater branch 103;

the reflux device 201 comprises a waste water reflux branch 2011, a reflux electromagnetic valve 2012 and an orifice 2013 which are arranged on the waste water reflux branch 2011; one end of the waste water reflux branch 2011 is connected with the waste water branch 103, and the other end is connected with a water inlet of a booster pump of the water purifier; the waste water flow of the water purifier is regulated by regulating the on-off state of the return electromagnetic valve 2012.

The electromagnetic valve is an automatic basic element for controlling the direction of fluid, and the on-off state of the electromagnetic valve can be controlled by controlling the energizing state of the electromagnetic valve.

Wherein, the waste water valve 202 is a half-switch valve, when the waste water valve 202 is powered off, the waste water valve 202 is in a half-open state, and the flow of the waste water passing through is small; when the waste water valve 202 is energized, the waste water valve 202 is in a fully open state, and the flow of waste water therethrough is large.

Specifically, one end of the waste water backflow branch 2011 is connected with the waste water branch 103, the other end of the waste water backflow branch 2011 is connected with a water inlet of a booster pump of the water purifier, and when a backflow electromagnetic valve 2012 arranged on the waste water backflow branch 2011 is opened, waste water originally discharged through the waste water branch 2011 can be drained again, and part of waste water is backflow to the water inlet of the booster pump. After the wastewater enters from the water inlet of the booster pump, the wastewater continuously flows through the booster pump and the reverse osmosis membrane filter element to carry out secondary water purification operation, and the repeated water purification operation is carried out on the wastewater, so that the wastewater flow of the water purifier is reduced, the proportion of the water purification flow in the raw water flow is increased, and the effect of adjusting the recovery rate of the water purifier is achieved.

Taking a water purifier with three waste water flow gears as an example, the waste water flow regulating device of the water purifier comprises: the waste water flow reflux device and the waste water valve are arranged on the waste water branch; the reflux device comprises a waste water reflux branch, and a reflux electromagnetic valve and an orifice which are arranged on the waste water reflux branch. When the water purifier is in an operating state, the wastewater flow adjusting device can adjust the wastewater flow by controlling the on-off state of the reflux electromagnetic valve. Wherein, when the waste water valve outage, the backward flow solenoid valve is continuous to be circular telegram, thinks that waste water flow gear is 1 shelves this moment, and the waste water valve is half open state this moment, and waste water backward flow branch road switches on, and the backward flow solenoid valve is with the water inlet of a majority waste water drainage to the booster pump, carries out repeated water purification operation, and waste water flow is minimum this moment.

When the waste water valve is powered off, the reflux electromagnetic valve is intermittently electrified (the preset second is electrified, the preset second is then powered off, and the process is repeated), the waste water flow gear is considered to be 2, the waste water valve is still in a half-open state, the reflux electromagnetic valve can drain a small part of waste water to perform repeated water purifying operation, and the waste water flow of the water purifier is increased to a certain extent compared with that in 1.

When the waste water valve and the reflux solenoid valve are all powered off, the waste water flow gear is considered to be 3, the waste water reflux branch is closed at the moment, the waste water valve is in a half-open state, the waste water is not subjected to repeated water purification operation, directly flows out of the waste water valve, and the waste water flow of the water purifier is maximum at the moment.

Specifically, when the controller compares the predicted total water purification amount with the designed total water purification amount range, and when the predicted total water purification amount is smaller than the lower limit of the designed total water purification amount range, determining the current wastewater flow gear of the water purifier, and if the wastewater flow gear is at the maximum gear at this time, namely the wastewater flow gear is at 3 gears at this time, keeping the current wastewater flow gear unchanged; and if the wastewater flow gear is not in the maximum gear at this time, namely when the wastewater flow gear is 2 or 1, generating an increasing wastewater flow gear adjusting control instruction. When the wastewater flow gear is 2, controlling the reflux electromagnetic valve to keep an electrified state, and adjusting the wastewater flow gear to 3; when the wastewater flow gear is 1, the reflux electromagnetic valve is controlled to be electrified intermittently, and the wastewater flow gear is adjusted to 2. By increasing the flow of the backflow wastewater, the effect of increasing the wastewater flow gear by one gear is achieved.

When the controller compares the predicted total purified water amount with the designed total purified water amount range, determining the current wastewater flow gear of the water purifier when the predicted total purified water amount is larger than the upper limit of the designed total purified water amount range, and if the wastewater flow gear is at the minimum gear at the moment, namely the wastewater flow gear is at the 1 st gear at the moment, keeping the current wastewater flow gear unchanged; and if the wastewater flow gear is not at the minimum gear at this time, namely, when the wastewater flow gear is at 2 or 3, generating a control instruction for adjusting the wastewater flow gear. When the wastewater flow gear is 2, controlling the reflux electromagnetic valve to be powered off, and adjusting the wastewater flow gear to 1; when the wastewater flow gear is 3, the reflux electromagnetic valve is controlled to be electrified intermittently, and the wastewater flow gear is adjusted to 2. By reducing the flow of the reflux wastewater, the effect of reducing the wastewater flow gear by one gear is achieved.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a water purifier control method applied to the water purifier.

In one embodiment, as shown in fig. 9, there is provided a water purifier control method, including:

step 302, collecting water quality operation parameters of the water purifier.

Wherein, the water quality operation parameter is obtained according to the data detected by the detecting device arranged in the water purifier.

Specifically, in the running process of the water purifier, the detection device arranged in the water purifier can detect the water quality of the water flowing through the water purifier, and corresponding water quality running parameters are obtained and collected. The detection device is connected with the controller and can transmit the collected water quality operation parameters to the controller.

Step 304, determining the predicted total water purifying amount of the water purifier according to at least two groups of water quality operation parameters.

Specifically, the controller determines the predicted total water purifying amount of the water purifier according to at least two sets of water quality operation parameters, and the specific method is described in the foregoing related embodiments of the water purifier, and is not repeated herein.

And 306, controlling the wastewater flow regulating device to regulate the wastewater flow of the water purifier according to the comparison between the predicted total purified water amount and the designed total purified water amount range when the predicted total purified water amount is not in the designed total purified water amount range.

The design total purified water amount of the water purifier is the total purified water amount which can be achieved by the reverse osmosis membrane filter element of the water purifier when the water purifier continuously works and operates with the recovery rate which is set in advance within the service life of the water purifier. It will be appreciated that the total net water is not a constant but rather a range, including upper and lower limits.

In one embodiment, the water purifier recovery rate is calculated by:

Specifically, the controller determines the predicted total water purifying amount of the water purifier according to at least two sets of water quality operation parameters, compares the predicted total water purifying amount with the range of the designed total water purifying amount of the water purifier, and when the predicted total water purifying amount is smaller than the range of the designed total water purifying amount or the predicted total water purifying amount is larger than the range of the designed total water purifying amount, namely, the predicted total water purifying amount is not within the range of the designed total water purifying amount, the controller generates a control adjustment instruction and sends the control adjustment instruction to the wastewater flow adjusting device. The wastewater flow adjusting device is controlled to adjust the wastewater flow of the water purifier, and the proportion of the purified water of the water purifier in the raw water can be adjusted by adjusting the wastewater flow, so that the recovery rate of the water purifier is adjusted.

The specific method is described in the embodiment of controlling the wastewater flow adjusting device to adjust the wastewater flow by the water purifier controller, and will not be described herein.

In the control method of the water purifier, the expected total water purifying amount of the water purifier is determined according to at least two groups of water quality operation parameters of purified water in the water purifier, so that the influence of water quality on the water purifying capacity of the water purifier can be reflected, when the expected total water purifying amount is not in the range of the designed total water purifying amount of the water purifier, namely is smaller than the lower limit of the designed total water purifying amount range or is larger than the upper limit of the designed total water purifying amount range, the water purifying capacity is affected by local water quality and is not in the designed total water purifying amount range, and the self-adaptive regulation of the recovery rate of the water purifier according to the water quality in all places can be realized by controlling the waste water flow regulating device to regulate the waste water flow of the water purifier.

In one embodiment, when the total purified water amount is not predicted to be within the designed total purified water amount range, controlling the wastewater flow adjusting device to adjust the wastewater flow of the water purifier includes: and controlling the wastewater flow regulating device to increase the wastewater flow when the predicted total purified water amount is smaller than the lower limit of the designed total purified water amount range.

Specifically, after calculating the predicted total water purifying amount according to at least two sets of water quality operation parameters, comparing the predicted total water purifying amount with the range of the designed total water purifying amount, and when the predicted total water purifying amount is smaller than the lower limit of the range of the designed total water purifying amount, the current water quality of raw water passing through the water purifier is poor, the recovery rate initially set by the water purifier is higher, and the problem that the water purifier is jammed due to scaling by reducing the recovery rate is solved.

The specific method is described in the embodiment of the water purifier controller controlling the wastewater flow regulating device to increase the wastewater flow, and will not be described herein.

In one embodiment, controlling the wastewater flow regulating device to increase the wastewater flow when the predicted total net water volume is less than the lower limit of the designed total net water volume range comprises:

determining a current wastewater flow gear when the predicted total purified water amount is less than the lower limit of the designed total purified water amount range; when the current wastewater flow gear is not the maximum gear, the wastewater flow gear is increased.

Specifically, when the predicted total purified water amount is smaller than the lower limit of the designed total purified water amount range, the controller firstly determines the current water purifier wastewater flow gear, when the current wastewater flow gear is not the maximum gear, generates an increase wastewater flow gear adjusting control instruction, and sends the adjusting control instruction to the wastewater flow adjusting device, and the wastewater flow adjusting device increases the wastewater flow gear by one gear in response to the increase wastewater flow gear adjusting control instruction. And if the current wastewater flow gear is the maximum gear, keeping the current wastewater flow gear unchanged.

The specific method is described in the embodiment of increasing the waste water flow gear of the water purifier controller, and is not repeated here.

In one embodiment, when the predicted total purified water amount is not within the designed total purified water amount range, controlling the wastewater flow adjusting device to adjust the wastewater flow of the water purifier further comprises:

and controlling the wastewater flow regulating device to reduce the wastewater flow when the predicted total purified water amount is larger than the upper limit of the designed total purified water amount range.

Specifically, after calculating the predicted total water purifying amount according to at least two sets of water quality operation parameters, comparing the predicted total water purifying amount with the range of the designed total water purifying amount, and when the predicted total water purifying amount is larger than the upper limit of the range of the designed total water purifying amount, generating a wastewater flow reducing control instruction by the controller, sending the wastewater flow reducing control instruction to the wastewater flow regulating device, and controlling the wastewater flow regulating device to reduce the wastewater flow of the water purifier.

The specific method is described in the embodiment of the water purifier controller controlling the wastewater flow regulating device to reduce the wastewater flow, and will not be described herein.

In one embodiment, controlling the wastewater flow regulating device to reduce the wastewater flow when the predicted total purified water amount is greater than the upper limit of the designed total purified water amount range comprises:

Determining a current wastewater flow gear when the predicted total purified water amount is greater than the upper limit of the designed total purified water amount range; when the current waste water flow gear is not the minimum gear, the waste water flow gear is reduced.

Specifically, when the predicted total purified water amount is greater than the upper limit of the designed total purified water amount range, the controller firstly determines the current water purifier wastewater flow gear, generates a wastewater flow reduction gear adjustment control command when the current wastewater flow gear is not the minimum gear, and sends the adjustment control command to the wastewater flow adjustment device, and the wastewater flow adjustment device reduces the wastewater flow gear by one gear in response to the wastewater flow reduction gear adjustment control command. And if the current wastewater flow gear is the minimum gear, keeping the current wastewater flow gear unchanged.

The specific method is described in the embodiment of the water purifier controller for reducing the waste water flow gear, and will not be described herein.

In one embodiment, the water quality operating parameter comprises a purified water flow rate.

Specifically, the controller calculates the estimated total water purifying amount according to at least two groups of purified water flows detected by the detection device, compares the estimated total water purifying amount with the range of the designed total water purifying amount, and when the estimated total water purifying amount is not in the range of the designed total water purifying amount of the water purifier, the controller can realize self-adaptive adjustment of the recovery rate of the water purifier according to the water quality in each place by controlling the waste water flow adjusting device to adjust the waste water flow of the water purifier.

The specific method is described in the embodiment of the foregoing water purifier detection device including the flow sensor, and will not be described herein.

In one embodiment, the water quality operating parameter further comprises water temperature; determining an expected total purified water amount of the water purifier according to the water quality operation parameters, including:

calculating to obtain the accumulated total water purifying quantity and the corrected water purifying flow according to the water purifying flow, the water temperature and the preset temperature correction coefficient;

Specifically, a flow sensor and a temperature sensor in the detection device detect water quality of water flowing through the water purifier, collect purified water flow and water temperature of purified water, transmit the collected purified water flow and water temperature to the controller, and the controller calculates accumulated total purified water and corrected purified water flow of the water purifier according to the received purified water flow and water temperature and a preset temperature correction coefficient, calculates attenuation coefficient based on at least two groups of accumulated total purified water and corrected purified water flow, and calculates expected total purified water according to the attenuation coefficient, the accumulated total purified water, the corrected purified water flow and a preset nominal purified water flow.

The specific method is described in the serial embodiments of the detection device of the water purifier including the temperature sensor, and will not be repeated here.

In one embodiment, a computer device is provided, which may be a server, and the internal structure of which may be as shown in fig. 10. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer equipment is used for storing the water quality operation parameters detected and collected by the water quality detection unit in the water purifier, various preset parameters when the water purifier leaves the factory, and various data calculated by the controller according to the collected water quality operation parameters. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program, when executed by a processor, implements a method of controlling a water purifier.

It will be appreciated by those skilled in the art that the structure shown in fig. 10 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device, which may be a controller in a water purifier, includes a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the water purifier control method of each of the above embodiments when executing the computer program.

In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, which when executed by a processor, implements the steps of the water purifier control method in the above embodiment.

It should be noted that, user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims

1. A water purifier, the water purifier comprising:

the detection device is used for collecting water quality operation parameters in the water purifier;

And the wastewater flow regulating device is connected with the controller and responds to the control of the controller to regulate the wastewater flow of the water purifier.

2. The water purifier of claim 1, wherein the controller controls the wastewater flow rate adjustment device to increase the wastewater flow rate when the predicted total purified water amount is less than a lower limit of the designed total purified water amount range.

3. The water purifier of claim 2, wherein the controller determines a current wastewater flow gear when the predicted total purified water amount is less than a lower limit of the designed total purified water amount range; and when the current waste water flow gear is not the maximum gear, increasing the waste water flow gear.

4. The water purifier of claim 1, wherein the controller controls the wastewater flow rate adjustment device to reduce the wastewater flow rate when the predicted total purified water amount is greater than an upper limit of the designed total purified water amount range.

5. The water purifier of claim 4, wherein the controller determines a current wastewater flow gear when the predicted total purified water amount is greater than an upper limit of the designed total purified water amount range; and when the current waste water flow gear is not the minimum gear, reducing the waste water flow gear.

6. The water purifier of claim 1, wherein the detection device comprises a flow sensor; the water quality operating parameter includes a purified water flow rate.

7. The water purifier of claim 6, wherein the detection device further comprises: a temperature sensor; the water quality operation parameters also comprise water temperature; the controller calculates and obtains the accumulated total water purifying quantity and the corrected water purifying flow according to the water purifying flow, the water temperature and the preset temperature correction coefficient;

calculating an attenuation coefficient based on the at least two groups of accumulated total water purifying amounts and the corrected purified water flow meter;

8. The water purifier of claim 1, wherein the wastewater flow regulating device comprises: the adjustable waste water valve is arranged on the waste water branch, and the waste water flow is adjusted through the adjustable waste water valve.

9. The water purifier of claim 8, wherein the adjustable waste water valve has a plurality of flow passages corresponding to a plurality of flow steps or a plurality of size flow openings corresponding to a plurality of flow steps.

10. The water purifier of claim 1, wherein the wastewater flow regulating device comprises: the waste water flow reflux device and the waste water valve are arranged on the waste water branch;

the reflux device comprises a wastewater reflux branch, a reflux electromagnetic valve and an orifice, wherein the reflux electromagnetic valve and the orifice are arranged on the wastewater reflux branch; one end of the waste water reflux branch is connected with the waste water branch, and the other end of the waste water reflux branch is connected with a water inlet of a booster pump of the water purifier; and regulating the wastewater flow of the water purifier by regulating the on-off state of the reflux electromagnetic valve.

11. A water purifier control method, the method comprising:

collecting water quality operation parameters of the water purifier;

12. The method of claim 11, wherein controlling the wastewater flow adjustment device to adjust the wastewater flow of the water purifier when the predicted total purified water amount is not within the designed total purified water amount range comprises:

And controlling the wastewater flow regulating device to increase the wastewater flow when the predicted total purified water amount is smaller than the lower limit of the designed total purified water amount range.

13. The method of claim 12, wherein controlling the wastewater flow regulating device to increase the wastewater flow when the predicted total purified water amount is less than a lower limit of the designed total purified water amount range comprises:

determining a current wastewater flow gear when the predicted total purified water amount is less than the lower limit of the designed total purified water amount range; and when the current waste water flow gear is not the maximum gear, increasing the waste water flow gear.

14. The method of claim 11, wherein controlling the wastewater flow adjustment device to adjust the wastewater flow of the water purifier when the predicted total purified water amount is not within the designed total purified water amount range, further comprises:

15. The method of claim 14, wherein controlling the wastewater flow regulating device to reduce the wastewater flow when the predicted total purified water amount is greater than an upper limit of the designed total purified water amount range comprises:

Determining a current wastewater flow gear when the predicted total purified water amount is greater than the upper limit of the designed total purified water amount range; and when the current waste water flow gear is not the minimum gear, reducing the waste water flow gear.

16. The method of claim 11, wherein the water quality operating parameter comprises a purified water flow rate.

17. The method of claim 16, wherein the water quality operating parameter further comprises water temperature; the method for determining the predicted total water purifying amount of the water purifier according to the water quality operation parameters comprises the following steps:

18. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 11 to 17.

19. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the method of any of claims 11 to 17.