CN113979494A

CN113979494A - Water purifier and water purifier control method

Info

Publication number: CN113979494A
Application number: CN202111494954.9A
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: 2021-12-08
Publication date: 2022-01-28
Also published as: WO2023103602A1; CN116040703A; CN116040703B

Abstract

The application relates to a water purifier and a water purifier control method. The water purifier comprises: the detection device is arranged in the water purifier and is used for acquiring water quality operation parameters of the water purifier; the controller is connected with the detection device, determines the estimated total purified water quantity of the water purifier according to the water quality operation parameters, compares the estimated total purified water quantity with the designed total purified water quantity range, and controls the wastewater flow regulating device to regulate the wastewater flow of the water purifier when the estimated total purified water quantity is not in the designed total purified water quantity range; and the waste water flow regulating device is connected with the controller and responds to the control of the controller to regulate the waste water flow of the water purifier. This purifier adjusts the waste water flow of purifier through control waste water flow adjusting device, can realize carrying out the self-adaptation regulation to the rate of recovery of purifier according to each local quality of water.

Description

Water purifier and water purifier control method

Technical Field

The present application relates to the field of water quality 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

With the development of science and technology and the improvement of the living standard of people, the requirement of people on the quality of drinking water is more and more strict, and in recent years, a reverse osmosis water purifier is popular because of being capable of effectively removing various pollutants in tap water. A part of water purifiers on the market are configured with a wastewater proportional valve/device when leaving a factory, and a part of water purifiers can be adjusted by installation personnel when being installed.

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

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 acquiring water quality operation parameters of the water purifier;

the controller is connected with the detection device, determines the estimated total purified water quantity of the water purifier according to the water quality operation parameters, compares the estimated total purified water quantity with a designed total purified water quantity range, and controls the wastewater flow regulating device to regulate the wastewater flow of the water purifier when the estimated total purified water quantity is not in the designed total purified water quantity range;

the waste water flow regulating device is connected with the controller and responds to the control of the controller to regulate the waste water flow of the water purifier; the wastewater flow rate 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 a water purifier;

determining the estimated total purified water quantity of the water purifier according to the water quality operation parameters;

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

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 method described above.

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

The estimated total purified water quantity of the water purifier is determined according to 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 estimated total purified water quantity is not in the range of the designed total purified water quantity of the water purifier, namely the estimated total purified water quantity is smaller than the lower limit of the range of the designed total purified water quantity or larger than the upper limit of the range of the designed total purified water quantity, the water purifying capacity is influenced by local water quality and is not in the range of the designed total purified water quantity, the wastewater flow of the water purifier is adjusted by controlling the wastewater flow adjusting device, and self-adaptive adjustment of the recovery rate of the water purifier according to the water quality of each place can be realized.

Drawings

FIG. 1 is a schematic structural diagram of a water purifier in one embodiment;

FIG. 2 is a schematic diagram of an embodiment of a reverse osmosis water purifier;

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

FIG. 4 is a schematic diagram of an embodiment of an adjustable waste valve with flow openings of various sizes;

FIG. 5 is a schematic diagram of an embodiment of an adjustable waste valve cartridge having flow openings of various sizes;

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

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

FIG. 8 is a schematic structural diagram of a water purifier in another embodiment;

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

FIG. 10 is a diagram showing an internal structure of a computer device according to an embodiment.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth 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 present 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 is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.

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

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

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, a front filter element of the water purifier performs first filtering operation on the raw water to filter harmful substances such as silt, rust, bacteria, colloid, macro-organic matters and the like in the raw water, and the raw water subjected to the first filtering operation is obtained.

The reverse osmosis membrane filter element is the core part of the reverse osmosis water purifier. The water purification schematic diagram of the reverse osmosis water purifier is shown in fig. 2, raw water after the first filtering operation flows through a water inlet electromagnetic valve and a 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 a reverse osmosis membrane filter element and are filtered into drinkable pure water, and most of inorganic salt (including heavy metal), organic matters, bacteria and viruses dissolved in the water cannot pass through the reverse osmosis membrane filter element, so that the drinkable pure water is changed into non-drinkable waste water. Drinkable purified water continuously passes through the post-filter element through the purified water producing branch and then flows out of the purified water outlet. The non-drinkable waste water flows out of the waste water opening via the waste water branch.

Based on this, in this embodiment, provide a purifier, include:

and the detection device 102 is used for acquiring the 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 in the present application, as long as the water quality operation parameters of the purified water of the water purifier can be obtained through the detection data. Taking a water quality operation parameter as an example of a flow parameter, if the detection device 102 is arranged in a water production branch of a reverse osmosis membrane filter element of the water purifier, the detection device detects water flowing through the water production branch, and 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, the detection device detects water flowing through the water inlet branch to obtain a flow parameter of inlet water entering the reverse osmosis membrane filter element, and 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 inlet water flow parameter, wherein the current wastewater flow parameter of the water purifier is known. Preferably, in this embodiment, the detection device 102 is disposed on the water production branch 101 of the reverse osmosis membrane cartridge.

Specifically, the detection device 102 may detect water flowing through the water production branch 101 of the reverse osmosis membrane filter element in real time to obtain a water quality operation parameter. In this application, detection device can be for sensor device, also can be for arbitrary detection device, as long as can detect and gather the quality of water operating parameter of purifier normal water can, this application does not limit to this.

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 parameter types 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 reasonable collection can be carried out on various different water quality parameters of purified water.

Specifically, in the operation process of the water purifier, the detection device 102 arranged on the reverse osmosis membrane filter element water production branch 101 can detect the water quality of the water flowing through the water production branch 101, and obtain and collect corresponding water quality operation parameters. The detection device 102 is connected to the controller 104, and can transmit the collected water quality operation parameters to the controller 104. Because the detection device 102 is arranged on the water production branch 101 of the reverse osmosis membrane filter element of the water purifier, the detected water quality operation parameters are the water quality operation parameters of the purified water produced by the water purifier.

And the controller 104 is connected with the detection device 102, determines the expected total purified water quantity of the water purifier according to the water quality operation parameters, compares the expected total purified water quantity with the designed total purified water quantity range, and controls the wastewater flow regulating device 106 to regulate the wastewater flow of the water purifier when the expected total purified water quantity is not in the designed total purified water quantity range.

The estimated total purified water amount of the water purifier is the total purified water amount of a reverse osmosis membrane filter element obtained by prediction according to the water quality operation parameters obtained by current detection, and means the estimated total purified water amount which can be achieved when the reverse osmosis membrane filter element of the water purifier performs water purification work within the preset service life of the water purifier under the current water quality.

The designed total purified water amount of the water purifier means the total purified water amount which can be reached 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 preset service life of the water purifier. It is understood that the total water purification amount is not a constant value, but a range including an upper limit value and a lower limit value.

Wherein, the raw water in the purifier after purification treatment such as reverse osmosis, will obtain the waste water that contains more impurity and the clean water that can be used for drinking, the rate of recovery of purifier indicates the clean water of producing water in the reverse osmosis purifier promptly and the ratio of raw water volume.

Wherein, the calculation mode of purifier rate of recovery does:

X_{recovery rate}＝V_{Flow rate of purified water}/(V_{Flow rate of purified water}+V_{Flow of waste water})，

Wherein X_{Recovery rate}Indicates the recovery rate of the water purifier V_{Flow rate of purified water}Representing net water flow data, V_{Flow of waste water}Representing wastewater flow data.

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

And the waste water flow regulating device 106 is connected with the controller 104 and responds to the control of the controller 104 to regulate the waste water flow of the water purifier.

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

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

In the above-mentioned purifier, the expected total water purification volume of purifier, the quality of water operation parameter according to the water purification in the purifier is confirmed, thereby can reflect the influence of quality of water to purifier water purification ability, when the expected total water purification volume is not in the scope of purifier design total water purification volume, be less than the lower limit of design total water purification volume scope promptly, or be greater than the upper limit of design total water purification volume scope, it indicates that water purification ability receives local quality of water influence and leads to not being in the total water purification volume within range of design, adjust the waste water flow of purifier through controlling waste water flow adjusting device, can realize carrying out the self-adaptation regulation to the rate of recovery of purifier according to each place quality of water.

In one embodiment, the controller 104 controls the waste flow regulator 106 to increase the waste flow when the expected total purified water amount is less than the lower limit of the designed total purified water range.

As described in the background art, in the process of actual installation and use of the reverse osmosis water purifier in the prior art, the problem of unstable water purification performance is easily caused due to a fixed recovery rate, and the inventor researches and discovers that the problem is caused by large water quality difference across the country, and at the same time, even in the same area, the water quality of each area is easily changed due to weather or other reasons. For example, the traditional fixed purified water proportional valve is easy to have the problems of waste water valve blockage and reverse osmosis membrane blockage in areas with poor water quality.

Based on this, in this embodiment, after the controller 104 calculates the expected total purified water amount according to the water quality operation parameters, the expected total water inflow amount is compared with the range of the designed total purified water amount, and when the expected total purified water amount is smaller than the lower limit of the range of the designed total purified water amount, it indicates that the quality of the raw water passing through the water purifier is poor, the recovery rate initially set by the water purifier is higher, and it is necessary to reduce the recovery rate to prevent the water purifier from generating the problem of congestion due to scaling of a waste water valve or a reverse osmosis membrane. The controller 104 generates a wastewater flow increasing control instruction, sends the wastewater flow increasing control instruction to the wastewater flow regulating device 106, and controls the wastewater flow regulating device 106 to increase the wastewater flow of the water purifier. Through increasing the waste water flow, can reduce the water purification that the purifier produced the proportion in raw water volume to reduce the rate of recovery of purifier, prevent that the purifier from producing the problem that blocks up because of the scale deposit takes place for waste water valve or reverse osmosis filter membrane.

In one embodiment, the controller 104 determines the current wastewater flow gear when the expected total water purification amount is less than the lower limit of the designed total water purification amount range; when current waste water flow gear is not the maximum gear, increase waste water flow gear.

The waste water flow gear is related to the waste water flow, and the lower the waste water flow gear is, the smaller the waste water flow is; the higher the waste water flow gear, the greater the waste water flow through. The waste water flow gear can be the gear of waste water valve, and the waste water valve gear of difference corresponds different waste water flow promptly, and at this moment, waste water flow gear can be adjusted through the waste water valve. It can be understood that the specific number of waste water flow gears can be set according to the actual conditions and the actual water quality conditions of purifier, and this application does not limit this.

Specifically, when the estimated total purified water amount is smaller than the lower limit of the designed total purified water amount range, the controller 104 determines the current wastewater flow gear of the water purifier, when the current wastewater flow gear is not the maximum gear, a wastewater flow gear increasing adjustment control instruction is generated, the adjustment control instruction is sent to the wastewater flow adjusting device 106, and the wastewater flow adjusting device 106 responds to the wastewater flow gear increasing adjustment control instruction to increase the wastewater flow gear by one gear. Specifically, a larger waste water flow channel can be opened, the opening degree of the waste water valve can be increased, and a waste water valve channel can be added.

And if the current wastewater flow gear is the maximum gear, keeping the current wastewater flow gear unchanged. This embodiment reduces the proportion of the water purification that the purifier produced in former water flow through increase waste water flow gear to reduce the rate of recovery of purifier and prevent that the purifier from producing waste water valve or reverse osmosis membrane because the problem that the scale deposit takes place to block up.

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

The traditional fixed water purification proportional valve is easy to cause waste of water resources in areas with good water quality. In this embodiment, after the controller 104 calculates the expected total purified water amount according to the water quality operation parameters, the expected total water inflow amount is compared with the range of the designed total purified water amount, and when the expected total purified water amount is greater than the upper limit of the range of the designed total purified water amount, it indicates that the quality of the raw water passing through the water purifier is better at present, the recovery rate of the initial setting of the water purifier is lower, and the problem of water resource waste of the water purifier in the water purifying process needs to be prevented by increasing the recovery rate. The controller 104 generates a wastewater flow reduction control instruction, sends the wastewater flow reduction control instruction to the wastewater flow regulation device 106, and controls the wastewater flow regulation device 106 to reduce the wastewater flow of the water purifier. Through reducing the waste water flow, can increase the proportion of the water purification that the purifier produced in former water flow to improve the rate of recovery of purifier, prevent the problem that the purifier leads to the waste of water resource again easily in the area that quality of water is good.

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

Specifically, when the estimated total purified water amount is larger than the upper limit of the designed total purified water amount range, the controller 104 determines the current wastewater flow gear of the water purifier, when the current wastewater flow gear is not the minimum gear, a wastewater flow reduction gear adjusting control instruction is generated, the adjusting control instruction is sent to the wastewater flow adjusting device 106, and the wastewater flow adjusting device 106 responds to the wastewater flow reduction gear adjusting control instruction to reduce the wastewater flow gear by one gear. And if the current waste water flow gear is the minimum gear, keeping the current waste water flow gear unchanged. This embodiment increases the proportion of water purification in raw water volume that the purifier produced through reducing waste water flow gear to promote the rate of recovery of purifier, prevent the problem that the purifier leads to the waste of water resource again easily in the area that quality of water is good.

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

Specifically, when the controller 104 determines that the predicted total purified water amount is smaller than the lower limit of the designed total purified water amount or the predicted total purified water amount is larger than the upper limit of the designed total purified water amount, the wastewater flow regulating device 106 is controlled to perform the step-by-step regulation 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 expected total purified water amount is smaller than the lower limit of the designed total purified water amount, and the difference between the expected total purified water amount and the designed total purified water amount is larger, 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 the embodiment, when the difference value between the estimated total purified water amount and the designed total purified water amount is large, the wastewater adjusting device 106 can be directly controlled to adjust the wastewater flow gear to a proper gear without adjusting step by step, so that the whole adjusting process is more flexible and convenient.

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

In one embodiment, the detection device comprises a flow sensor; the water quality operation parameters comprise the flow rate of purified water.

The purified water flow refers to the amount of water passing through the flow sensor in unit time detected by the flow sensor when the purified water faucet is opened.

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 correspondingly generated in unit time. For example, the water discharge amount per unit pulse is 0.15L, and if the flow sensor detects 20 pulses per unit time, the corresponding net water flow amount data is 0.15 × 20 — 3L/min.

The controller calculates to obtain the estimated total purified water amount according to the purified water flow obtained by the detection device, compares the estimated total purified water amount with the range of the designed total purified water amount, and adjusts the wastewater flow of the water purifier by controlling the wastewater flow adjusting device when the estimated total purified water amount is not in the range of the designed total purified water amount of the water purifier, so that the self-adaptive adjustment of the recovery rate of the water purifier according to the water quality of each region can be realized.

In one embodiment, the detection apparatus further comprises: a temperature sensor; the water quality operation parameters also comprise water temperature; the controller calculates to obtain the accumulated total purified water quantity and the corrected purified water flow according to the purified water flow, the water temperature and a 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 parameter is to correct the purified water flow to obtain corrected purified water flow data when the temperature is 25 ℃. It can be understood that the value of the preset temperature correction coefficient is not fixed and unchanged, and the specific value of the preset temperature correction coefficient changes according to the actual temperature of the water purifier during use, one preset temperature correction coefficient is shown in table 1, the value of the preset temperature correction coefficient is 1 at a temperature of 25 ℃, the value of the preset temperature correction coefficient is greater than 1 when the temperature is lower than the temperature of 25 ℃, and the value of the preset temperature correction coefficient is less than 1 when the temperature is higher than the temperature of 25 ℃.

TABLE 1 Preset temperature correction factor

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

And the corrected purified water flow is the purified water flow of the current 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 the detected data, and corrected purified water flow can be obtained through calculation according to the purified water flow, the water temperature and a preset temperature correction coefficient acquired by the flow sensor.

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

Q_{correcting the flow of purified water}＝Q_{Flow rate of purified water}×K_{Preset temperature correction coefficient}(T_{Temperature of water})，

Wherein Q is_{Correcting the flow of purified water}Corrected net water flow rate data, Q, representing the current detection moment_{Flow rate of purified water}Data representing the flow rate of the purified water at the current moment of detection, K_{Preset temperature correction coefficient}Representing a preset temperature correction coefficient, T_{Temperature of water}Representing the water temperature data of the purified water at the current detection moment.

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

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

the attenuation coefficient is reverse osmosis membrane flow attenuation coefficient, and the attenuation coefficient can reflect the speed of the water purification flow attenuation degree of a reverse osmosis filter element of the water purifier. The attenuation coefficient is generally a negative number, and the larger the absolute value of the attenuation coefficient is, the faster the pure water flow of the filter element is attenuated.

Specifically, the controller calculates at least two groups of accumulated total purified water volume and corrected purified water flow volume through the purified water flow volume, the water temperature and a preset temperature correction coefficient detected and collected by the detection device. It is understood that any two sets of accumulated total purified water and corrected purified water flow are detected within a predetermined time interval. And calculating the attenuation coefficient according to the at least two groups of accumulated total purified water and the corrected purified water flow meter.

In one embodiment, the attenuation coefficient is calculated by the formula:

wherein, B_{i attenuation coefficient}For attenuation coefficient data at the current detection instant, L_{i Total Water purification}For the accumulated total net water amount data, Q, at the current detection moment_{i correction of the flow of purified water}Corrected net water flow data for the current detection time.

The average accumulated total net water amount calculated for the plurality of groups of accumulated total net water amounts,

average corrected net water flow calculated for multiple sets of corrected net water flow,

and

the calculation formula of (2) is as follows:

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

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

And the nominal water purification flow is the theoretical water purification flow marked by the water purifier according to the performance of the water purifier when the water purifier leaves a factory.

In one embodiment, the total net water amount is expected to be calculated by the formula:

E_{prediction of total water purification}＝(B_{Nominal purified water flow}-Q_{i correction of the flow of purified water})/B_{i attenuation coefficient}+L_{i Total Water purification}，

Wherein E is_{Prediction of total water purification}For the predicted total water purification data at the current detection moment, B_{Nominal purified water flow}For nominal net water flow data, Q_{i correction of the flow of purified water}Corrected net water flow data for the current detection moment, B_{i attenuation coefficient}For attenuation coefficient data at the current detection instant, L_{i Total Water purification}And the data is the accumulated total purified water quantity data at the current detection moment.

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

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

In one embodiment, the wastewater flow regulating device comprises: the adjustable waste water valve is arranged on the waste water branch, and the flow of the waste water is adjusted through the adjustable waste water valve.

The waste water valve is an important part in water purifying equipment such as a water purifier, and the waste water valve is mainly used for timely discharging waste water generated in the filtering process, preventing the filter element from scaling due to the enrichment of waste water in the filter element and adjusting the internal pressure of the filter element to enable the filter element to work normally. It will be appreciated that an adjustable waste valve is a waste valve which can adjust the flow of waste through the waste. Through adjusting adjustable waste water valve, just can adjust the waste water flow of purifier.

In one embodiment, the adjustable waste 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.

Wherein, as shown in fig. 3, the adjustable waste water valve can have a plurality of flow channels, the plurality of flow channels are arranged side by side, and each flow channel is provided with a corresponding gear switch valve and a corresponding cutoff hole. The waste water flow that every flow channel can pass through is different in size, and the water inlet of every flow channel all is connected with the waste water inlet of waste water branch road, and the delivery port of every flow channel all is connected with the waste water delivery port of waste water branch road. The waste water flow gears of the water purifier during operation respectively correspond to the flow channels of the waste water valve during operation.

Taking a water purifier with three wastewater flow gears as an example, the 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 the switch valve is opened, so that the corresponding wastewater flow channel is communicated; and when the switch valve is closed, the corresponding waste water flow channel is closed. If the first flow channel is opened in the running process of the water purifier, 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 gears at the moment; and opening the third flow channel, and considering that the wastewater flow gear of the water purifier is 3 gears at the moment. Wherein the size of the flow passage from 1 st gear to 3 rd gear is increased in sequence.

Specifically, when the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is smaller than the lower limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the maximum gear, namely the current wastewater flow gear is 3, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the maximum gear at the moment, namely the waste water flow gear is 2 gears or 1 gear at the moment, a waste water flow gear increasing adjustment control instruction is generated, the waste water adjusting device is controlled to open the switch valve of the 3-gear or 2-gear flow channel and close the switch valve of the 2-gear or 1-gear flow channel, and the effect of increasing the waste water flow gear by one gear is achieved.

When the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is larger than the upper limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the minimum gear, namely the current wastewater flow gear is 1 gear, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the minimum gear at the moment, namely the waste water flow gear is 2 or 3, a waste water flow gear reduction adjusting control instruction is generated, the waste water adjusting device is controlled to open the switch valve of the 1 or 2-gear flow channel and close the switch valve of the 2 or 3-gear flow channel, and the effect of reducing the waste water flow gear by one gear is achieved.

The adjustable waste water valve is also 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 at the moment.

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

Taking a water purifier with three wastewater flow gears as an example, the adjustable wastewater valve of the water purifier is provided with a wastewater inlet and three wastewater outlets with different sizes of flow openings, the sizes of the three flow openings are sequentially increased according to a preset proportion, and each wastewater outlet is provided with a corresponding wastewater channel and a valve needle. When the purifier is in the running state, one of them flow opening of adjustable waste water valve control is the conducting state, and other flow openings are nonconducting, and the waste water of purifier output all is discharged by the waste water outlet that the flow opening that switches on corresponds. When the flow opening with the minimum opening size is controlled to be in a conducting state by the adjustable waste water valve, the waste water flow gear of the water purifier is considered to be 1 gear at the moment; when the flow opening with the medium size of the opening controlled by the adjustable waste water valve is 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 size of the adjustable waste water valve control opening is in a conduction state, the waste water flow gear of the water purifier is considered to be 3.

Specifically, when the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is smaller than the lower limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the maximum gear, namely the current wastewater flow gear is 3, keeping the current wastewater flow gear unchanged; if the waste water flow gear is not at the maximum gear at this moment, namely when the waste water flow gear is 2 gears or 1 gear at this moment, a waste water flow gear increasing regulation control instruction is generated, the waste water regulation device is controlled to close the flow opening with the current size, the flow opening with the size larger than that of the current flow opening by one step is conducted, and the effect of increasing the waste water flow gear by one gear is achieved by increasing the size of the flow opening.

When the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is larger than the upper limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the minimum gear, namely the current wastewater flow gear is 1 gear, 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 2 gears or 3 gears at this moment, a waste water flow gear reduction control instruction is generated, the waste water adjusting device is controlled to close the flow opening of the current size, the flow opening which is one-step smaller than the current flow opening 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 all the flow openings with different sizes and the flushing water outlet is communicated, the water purifier is considered to be in a flushing state at the moment.

In one embodiment, the adjustable waste valve may also be a stepless regulating valve. The stepless regulating valve is an electromagnetic valve with a plurality of different flow gears, and belongs to stepless regulation when the flow gears are regulated, namely, the flow can be regulated in any size within a certain range. As shown in fig. 6 and 7, the stepless regulating valve has 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 waste water treatment device is used, waste water flows through the flowing water channels corresponding to the lower valve plates at different positions by adjusting the positions of the upper valve plate channel and the lower valve plate channel, so that the flow of the waste water is adjusted.

Specifically, when the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is smaller than the lower limit of the designed total purified water quantity range, the current wastewater flow gear of the water purifier is determined, and if the wastewater flow gear is at the maximum gear, the current wastewater flow gear is kept unchanged; if the waste water flow gear is not at the maximum gear, a waste water flow gear increasing adjustment control instruction is generated, the position of the upper valve plate channel of the stepless adjusting valve, which corresponds to the lower valve plate channel, is controlled, the position of the upper valve plate channel is moved to a region with larger waste water flow in the lower valve plate channel, and the effect of increasing the waste water flow gear by one gear is achieved.

When the controller compares the estimated total purified water quantity with the designed total purified water quantity range, when the estimated total purified water quantity is larger than the upper limit of the designed total purified water quantity range, determining a current waste water flow gear of the water purifier, and if the waste water flow gear is at the minimum gear, keeping the current waste water flow gear unchanged; if the waste water flow gear is not at the minimum gear at the moment, a gear adjusting control instruction for reducing the waste water flow is generated, the position of the upper valve plate channel of the stepless adjusting valve, which corresponds to the lower valve plate channel, is controlled, the position of the upper valve plate channel is moved to an area with smaller waste water flow in the lower valve plate 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 comprises: a waste water flow reflux device 201 and a waste water valve 202 arranged on the waste water branch 103;

the backflow device 201 comprises a waste water backflow branch 2011, and a backflow solenoid valve 2012 and a throttling hole 2013 which are arranged on the waste water backflow branch 2011; one end of the wastewater reflux branch 2011 is connected with the wastewater 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 adjusted by adjusting 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 power-on state of the electromagnetic valve.

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

Specifically, the one end and the waste water branch road 103 of waste water backward flow branch road 2011 are connected, and the water inlet of the booster pump of purifier is connected to the other end, set up when backward flow solenoid valve 2012 on waste water backward flow branch road 2011 opens, can be with will originally through waste water branch road 2011 exhaust waste water drainage again, with the water inlet of partial waste water backward flow to the booster pump. Waste water gets into the back from the water inlet of booster pump, continues to flow through booster pump, reverse osmosis membrane filter core and carries out secondary water purification operation, through carrying out iterative water purification operation to waste water, has reduced the waste water flow of purifier, increases the proportion of water purification flow in the raw water flow to reach the effect of adjusting the purifier rate of recovery.

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

When the waste water valve outage, backward flow solenoid valve intermittent type nature circular telegram (the second number of predetermineeing of circular telegram, the second number of predetermineeing of outage afterwards, this process of repetition), think waste water flow gear this moment be 2 shelves, the waste water valve at this moment still is half-open state, and the backward flow solenoid valve can drain a small part waste water and carry out repeated water purification operation, and the waste water flow of purifier this moment compares in 1 shelves occasionally certain increase.

When the waste water valve and the backflow solenoid valve are all powered off, the waste water flow gear is considered to be 3 gears at the moment, the waste water backflow branch is closed at the moment, the waste water valve is in a half-open state, waste water does not need to be repeatedly purified, the waste water directly flows out of the waste water valve, and the waste water flow of the water purifier is the largest at the moment.

Specifically, when the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is smaller than the lower limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the maximum gear, namely the current wastewater flow gear is 3, keeping the current wastewater flow gear unchanged; and if the waste water flow gear is not at the maximum gear at the moment, namely the waste water flow gear is 2 or 1, generating a waste water flow gear increasing adjustment control instruction. When the waste water flow gear is 2 gears, controlling the reflux electromagnetic valve to keep a power-on state, and adjusting the waste water flow gear to 3 gears; when the waste water flow gear is 1 gear, the reflux electromagnetic valve is controlled to be intermittently electrified, and the waste water flow gear is adjusted to 2 gears. Through the flow that increases the backward flow waste water, reach the effect with waste water flow gear increase gear.

When the controller compares the estimated total purified water quantity with the designed total purified water quantity range, and when the estimated total purified water quantity is larger than the upper limit of the designed total purified water quantity range, determining a current wastewater flow gear of the water purifier, and if the current wastewater flow gear is at the minimum gear, namely the current wastewater flow gear is 1 gear, keeping the current wastewater flow gear unchanged; and if the waste water flow gear is not at the minimum gear at the moment, namely the waste water flow gear is 2 or 3, generating a waste water flow reduction gear adjusting control instruction. When the waste water flow gear is 2 gears, controlling the return electromagnetic valve to be powered off, and adjusting the waste water flow gear to 1 gear; when the waste water flow gear is 3 gears, the reflux electromagnetic valve is controlled to be intermittently electrified, and the waste water flow gear is adjusted to 2 gears. Through reducing the flow of backward flow waste water, reach the effect that reduces waste water flow gear by a gear.

It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.

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, a water purifier control method is provided, including:

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

Wherein, the water quality operation parameters are obtained according to the data detected by the detection device arranged in the water purifier.

Specifically, in the operation 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 obtain and collect corresponding water quality operation parameters. The detection device is connected with the controller, and can transmit the collected water quality operation parameters to the controller.

And step 304, determining the estimated total purified water quantity of the water purifier according to the water quality operation parameters.

Specifically, the controller determines the expected total purified water amount of the water purifier according to the water quality operation parameters, and the specific method thereof is described in the foregoing embodiments related to the water purifier, and is not described herein again.

And 306, comparing the estimated total purified water quantity with the designed total purified water quantity range, and controlling the wastewater flow regulating device to regulate the wastewater flow of the water purifier when the estimated total purified water quantity is not in the designed total purified water quantity range.

Wherein, the total water purification volume of design of purifier means, and in predetermined purifier life, the purifier lasts when the work of the rate of recovery with initial setting, and the total water purification volume that purifier reverse osmosis membrane filter core can reach. It is understood that the total water purification amount is not a constant value, but a range including an upper limit value and a lower limit value.

In one embodiment, the recovery rate of the water purifier is calculated in the following manner:

Specifically, the controller determines the estimated total purified water quantity of the water purifier according to the water quality operation parameters, compares the estimated total purified water quantity with the range of the designed total purified water quantity of the water purifier, and when the estimated total purified water quantity is smaller than the range of the designed total purified water quantity or the estimated total purified water quantity is larger than the range of the designed total purified water quantity, the controller determines that the estimated total purified water quantity is not in the range of the designed total purified water quantity, generates a control regulation instruction and sends the control regulation instruction to the wastewater flow regulation device. The wastewater flow control device is used for adjusting the wastewater flow of the water purifier, and the proportion of the purified water of the water purifier in the raw water volume 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 foregoing embodiment in which the water purifier controller controls the wastewater flow regulating device to regulate the wastewater flow, and is not described herein again.

In the water purifier control method, the estimated total purified water quantity of the water purifier is determined according to 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 estimated total purified water quantity is not in the range of the designed total purified water quantity of the water purifier, namely, the estimated total purified water quantity is smaller than the lower limit of the range of the designed total purified water quantity or is larger than the upper limit of the range of the designed total purified water quantity, the situation that the water purifying capacity is influenced by local water quality and is not in the range of the designed total purified water quantity is indicated, the wastewater flow of the water purifier is 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 of each place can be realized.

In one embodiment, when the total purified water amount is not within the designed total purified water amount range, the wastewater flow regulating device is controlled to regulate the wastewater flow of the water purifier, and the method comprises the following steps: and when the estimated total purified water amount is smaller than the lower limit of the designed total purified water amount range, controlling the wastewater flow regulating device to increase the wastewater flow.

Specifically, after the estimated total purified water amount is calculated according to the water quality operation parameters, the estimated total water inflow amount is compared with the range of the designed total purified water amount, and when the estimated total purified water amount is smaller than the lower limit of the range of the designed total purified water amount, it is indicated that the quality of the raw water passing through the water purifier is poor at present, the recovery rate set initially by the water purifier is higher, and the problem that the water purifier is blocked due to scaling of a waste water valve or a reverse osmosis filter membrane is prevented by reducing the recovery rate.

The specific method is described in the foregoing embodiment in which the water purifier controller controls the wastewater flow regulating device to increase the wastewater flow, and is not described herein again.

In one embodiment, when the predicted total purified water amount is smaller than the lower limit of the designed total purified water amount range, controlling the wastewater flow adjusting device to increase the wastewater flow comprises:

when the estimated total purified water amount is smaller than the lower limit of the designed total purified water amount range, determining a current wastewater flow gear; when current waste water flow gear is not the maximum gear, increase waste water flow gear.

Specifically, when the estimated total purified water amount is smaller than the lower limit of the designed total purified water amount range, the controller firstly determines the current wastewater flow gear of the water purifier, when the current wastewater flow gear is not the maximum gear, a wastewater flow gear increasing adjustment control instruction is generated, the adjustment control instruction is sent to the wastewater flow adjusting device, and the wastewater flow adjusting device responds to the wastewater flow gear increasing adjustment control instruction and increases the wastewater flow gear by one gear. 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 the water purifier controller for increasing the waste water flow gear, and is not described herein again.

In one embodiment, when the total water purification amount is not within the designed total water purification amount range, the wastewater flow regulating device is controlled to regulate the wastewater flow of the water purifier, and the method further comprises the following steps:

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

Specifically, after the estimated total purified water amount is calculated according to the water quality operation parameters, the estimated total water inflow amount is compared with the range of the designed total purified water amount, when the estimated total purified water amount is larger than the upper limit of the range of the designed total purified water amount, the controller generates a wastewater flow reduction control instruction, the wastewater flow reduction control instruction is sent to the wastewater flow regulating device, and the wastewater flow regulating device is controlled to reduce the wastewater flow of the water purifier.

The specific method is described in the foregoing embodiment in which the water purifier controller controls the wastewater flow regulating device to reduce the wastewater flow, and is not described herein again.

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

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

Specifically, when the estimated total purified water amount is larger than the upper limit of the designed total purified water amount range, the controller firstly determines the current wastewater flow gear of the water purifier, when the current wastewater flow gear is not the minimum gear, a wastewater flow reduction gear adjusting control instruction is generated, the adjusting control instruction is sent to the wastewater flow adjusting device, and the wastewater flow adjusting device responds to the wastewater flow reduction gear adjusting control instruction and reduces the wastewater flow gear by one gear. And if the current waste water flow gear is the minimum gear, keeping the current waste water flow gear unchanged.

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

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

Specifically, the controller calculates the estimated total purified water amount according to the purified water flow detected by the detection device, compares the estimated total purified water amount with the range of the designed total purified water amount, and adjusts the wastewater flow of the water purifier by controlling the wastewater flow adjusting device when the estimated total purified water amount is not in the range of the designed total purified water amount of the water purifier, so that the self-adaptive adjustment of the recovery rate of the water purifier according to the water quality of each area can be realized.

The specific method is described in the foregoing embodiment in which the water purifier detection device includes the flow sensor, and is not described herein again.

In one embodiment, the water quality operating parameter further comprises water temperature; determining the estimated total purified water quantity of the water purifier according to the water quality operation parameters, comprising the following steps of:

calculating to obtain an accumulated total purified water amount and a corrected purified water flow amount according to the purified water flow amount, the water temperature and a preset temperature correction coefficient;

Specifically, a flow sensor and a temperature sensor in the detection device perform water quality detection on water flowing through the water purifier, the purified water flow and the water temperature of the purified water are collected, the collected purified water flow and the collected water temperature are transmitted to the controller, the controller calculates the accumulated total purified water amount and the corrected purified water flow of the water purifier according to the received purified water flow and the water temperature and a preset temperature correction coefficient, calculates an attenuation coefficient based on at least two groups of the accumulated total purified water amount and the corrected purified water flow, and calculates the predicted total purified water amount according to the attenuation coefficient, the accumulated total purified water amount, the corrected purified water flow and a preset nominal purified water flow.

The specific method is described in the series of embodiments of the water purifier detection device including the temperature sensor, and is not described herein again.

In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram 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, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used for storing water quality operation parameters detected and collected by a water quality detection unit in the water purifier, various preset parameters of the water purifier when leaving a factory, and various data obtained by the controller through calculation 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 is executed by a processor to implement a water purifier control method.

Those skilled in the art will appreciate that the architecture shown in fig. 10 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those 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, is provided, and 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 according to the foregoing 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-described embodiments.

It should be noted that, the user information (including but not limited to user device 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.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the 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 (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain 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 devices, quantum computing based data processing logic devices, etc., without limitation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A water purifier, characterized in that the water purifier comprises:

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

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

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

3. The water purifier of claim 2, wherein the controller determines a current wastewater flow gear when the projected total water purification amount is less than a lower limit of the designed total water purification 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 adjustment device to decrease the wastewater flow 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; when the current wastewater flow gear is not the minimum gear, reducing the wastewater flow gear.

6. The water purifier according to claim 1, wherein said detection means comprises a flow sensor; the water quality operation parameters comprise purified water flow.

7. The water purifier according to claim 6, wherein said detection means further comprises: a temperature sensor; the water quality operation parameters also comprise water temperature; the controller calculates to obtain an accumulated total purified water amount and a corrected purified water flow according to the purified water flow, the water temperature and a preset temperature correction coefficient;

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

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

9. The water purifier of claim 8, wherein the adjustable waste valve has a plurality of flow channels corresponding to a plurality of flow stages or flow openings of various sizes corresponding to a plurality of flow stages.

10. The water purifier according to claim 1, wherein said wastewater flow regulation device comprises: the waste water flow reflux device and a waste water valve are arranged on the waste water branch;

the backflow device comprises a wastewater backflow branch, and a backflow electromagnetic valve and a throttling hole which are arranged on the wastewater backflow branch; one end of the wastewater backflow branch is connected with the wastewater branch, and the other end of the wastewater backflow branch is connected with a water inlet of a booster pump of the water purifier; and adjusting the waste water flow of the water purifier by adjusting the on-off state of the reflux electromagnetic valve.

11. A control method of a water purifier is characterized by comprising the following steps:

collecting water quality operation parameters of a water purifier;

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

and when the estimated total water purification amount is smaller than the lower limit of the designed total water purification amount range, controlling a waste water flow regulating device to increase the waste water flow.

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

when the estimated total water purification amount is smaller than the lower limit of the designed total water purification amount range, determining a current wastewater flow gear; 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 a wastewater flow adjustment device to adjust the wastewater flow of the water purifier when the projected total purified water amount is not within the designed total purified water amount range further comprises:

and when the estimated total purified water amount is larger than the upper limit of the designed total purified water amount range, controlling a waste water flow regulating device to reduce the waste water flow.

15. The method of claim 14, wherein controlling the wastewater flow adjustment 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:

when the estimated total purified water amount is larger than the upper limit of the designed total purified water amount range, determining a current wastewater flow gear; when the current wastewater flow gear is not the minimum gear, reducing the wastewater flow gear.

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

17. The method of claim 16, wherein the water quality operating parameters further comprise water temperature; the determining of the estimated total purified water 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, which, when being executed by a processor, carries out the steps of the method of any one of claims 11 to 17.

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