WO2023103602A1

WO2023103602A1 - Water purifier and water purifier control method

Info

Publication number: WO2023103602A1
Application number: PCT/CN2022/126174
Authority: WO
Inventors: 陈静; 詹婷; 陈子斌; 谢武彬; 宁贵勇; 李文灿
Original assignee: 珠海格力电器股份有限公司
Priority date: 2021-12-08
Filing date: 2022-10-19
Publication date: 2023-06-15
Also published as: CN113979494A; CN116040703A; CN116040703B

Abstract

The present application relates to a water purifier and a water purifier control method. The water purifier comprises: a detection device (102), which is arranged in the water purifier and collects water quality operation parameters of the water purifier; a controller (104), which is connected to the detection device (102), determines the total predicted water purification amount of the water purifier according to the water quality operation parameters, compares the total predicted water purification amount against the design range of total water purification amount, and controls a wastewater flow adjustment device to adjust the wastewater flow of the water purifier when the total predicted water purification amount falls outside of the design range of total water purification amount; and a wastewater flow adjustment device (106), which is connected to the controller (104) and adjusts the wastewater flow of the water purifier in response to the control by the controller (104).

Description

Water purifier and water purifier control method

related application

This application claims the priority of the Chinese patent application filed on December 08, 2021 with application number 202111494954.9 and titled "Water Purifier and Water Purifier Control Method", which is hereby incorporated by reference in its entirety.

technical field

The present application relates to the technical field of water quality treatment, in particular to a water purifier, a water purifier control method, computer equipment, storage media and computer program products.

Background technique

With the development of science and technology and the improvement of people's living standards, people's requirements for drinking water quality are becoming more and more stringent. In recent years, reverse osmosis water purifiers are very popular because they can effectively remove various pollutants in tap water. At present, some of the water purifiers on the market are equipped with waste water proportional valve/device when they leave the factory, and some of them will be adjusted by the installer during installation. Then, during the use of the water purifier, the waste water proportional valve/device It will always remain unchanged, and the recovery rate of the corresponding water purifier is also a fixed value.

However, during the actual installation and use of the water purifier, due to the set value of the recovery rate, it is easy to cause the filter element to be blocked quickly in areas with poor water quality and waste water in areas with good water quality.

Contents of the invention

Based on this, it is necessary to provide a water purifier, a water purifier control method, a computer device, a storage medium, and a computer program product for the above technical problems.

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

A detection device for collecting the water quality operating parameters of the water purifier;

The controller is connected with the detection device, determines the estimated total net water volume of the water purifier according to the water quality operation parameters, and compares the estimated total net water volume with the design total net water volume range, and in the estimated total net water volume When the water volume is not within the range of the total designed water purification volume, control the waste water flow regulating device to adjust the waste water flow of the water purifier;

The waste water flow regulating device is connected with the controller, and adjusts the waste water flow of the water purifier in response to the control of the controller; the waste water flow is negatively correlated with the water quality.

In a second aspect, the present application also provides a method for controlling a water purifier, the method comprising:

Collect water quality operating parameters of the water purifier;

Determine the estimated total water purification capacity of the water purifier according to the water quality operating parameters;

According to the comparison between the estimated total water purification volume and the design total water purification volume range, when the estimated total water purification volume is not within the design total water purification volume range, control the waste water flow regulating device to the waste water of the water purifier The flow is adjusted.

In a third aspect, the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above method are implemented.

In a fourth aspect, the present application further provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps of the above method are implemented.

The above-mentioned water purifier and water purifier control method, computer equipment, storage medium and computer program product, the estimated total water purification capacity of the water purifier is determined according to the water quality operating parameters of the water purifier in the water purifier, so that it can reflect The impact of water quality on the water purification capacity of the water purifier, when the estimated total water purification volume is not within the range of the total water purification volume designed by the water purifier, that is, it is less than the lower limit of the design total water purification volume range, or greater than the design total water purification volume range. When the upper limit is set, it means that the water purification capacity is affected by the local water quality and is not within the designed total water purification range. By controlling the waste water flow regulating device to adjust the waste water flow of the water purifier, the water purifier can be adjusted according to the water quality in various places. The recovery rate is adaptively adjusted.

Description of drawings

Fig. 1 is the structural representation of water purifier in an embodiment of the present application;

Fig. 2 is a working principle diagram of a reverse osmosis water purifier in an embodiment of the present application;

Fig. 3 is a structural schematic diagram of an adjustable waste water valve with multiple flow channels in one embodiment of the present application;

Fig. 4 is a structural schematic diagram of an adjustable waste water valve with flow openings of various sizes in one embodiment of the present application;

Fig. 5 is a structural schematic diagram of an adjustable waste water valve spool with flow openings of various sizes in an embodiment of the present application;

Fig. 6 is a schematic structural view of the upper valve plate of the stepless regulating valve in one embodiment of the present application;

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

Fig. 8 is a schematic structural view of a water purifier in another embodiment of the present application;

FIG. 9 is a schematic flow chart of a water purifier control method in an embodiment of the present application;

FIG. 10 is an internal structure diagram of a computer device in an embodiment of the present application.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element, or connected to the other element through an intervening element. In addition, "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 the connected objects.

When used herein, the singular forms "a", "an" and "the/the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising/comprising" or "having" etc. specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more The possibility of other features, integers, steps, operations, components, parts or combinations thereof. Meanwhile, the term "and/or" used in this specification includes any and all combinations of the related listed items.

In one embodiment, as shown in Figure 1, a common 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 water purification The water outlet and the water branch between the above-mentioned components, etc.

Among them, the pre-filter element is an important water purification part in the water purifier, which is generally connected with the raw water inlet of the water purifier. The raw water that needs to be filtered enters the water purifier from the raw water inlet. The pre-filter element of the water purifier performs the first filtration operation on the raw water to filter out harmful substances such as sediment, rust, bacteria, colloids, and Oita organic matter in the raw water. Get the raw water after the first filtration operation.

The reverse osmosis membrane filter element is the core part of the reverse osmosis water purifier. Among them, the water purification schematic diagram of the reverse osmosis water purifier is shown in Figure 2. After the first filtration operation, the raw water flows through the water inlet solenoid valve and the stabilizing pump of the water purifier, and the stabilizing pump exerts a certain pressure on the raw water. , so that water molecules and ionic mineral elements pass through the reverse osmosis membrane filter element to filter into drinking water, while most of the inorganic salts (including heavy metals), organic matter, bacteria and viruses dissolved in the water cannot pass through Reverse osmosis membrane filter, which becomes undrinkable waste water. Drinkable purified water continues to pass through the rear filter element through the purified water production branch, and then flows out from the purified water outlet. Non-potable waste water exits the waste water outlet via the waste water branch.

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

The detection device 102 collects water quality operating parameters of the water purifier.

Wherein, the detection device 102 is arranged in the reverse osmosis water purifier, and the specific location is not limited in this application, as long as the water quality operating parameters of the water purifier can be obtained through the detection data. Taking the water quality operating parameters as the flow parameter as an example, if the detection device 102 is installed in the water production branch of the reverse osmosis membrane filter element of the water purifier, it will detect the water flowing through the water production branch, and the obtained flow parameter is the water purifier The flow parameter of purified water; if the detection device 102 is arranged on the water inlet branch road of the reverse osmosis membrane filter element of the water purifier, then it detects the water flowing through the water inlet branch, and what is obtained is the inlet flow rate entering the reverse osmosis membrane filter element. Water flow parameters, at this time, the water purification flow parameters of the water purifier can be obtained by subtracting the current wastewater flow parameters of the water purifier from the detected inflow flow parameters, where the current wastewater flow parameters of the water purifier are known . Preferably, in this embodiment, the detection device 102 is arranged on the water production branch 101 of the reverse osmosis membrane filter element.

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

The water quality operating parameters are the water quality parameters of the purified water after the raw water flowing through the water purifier is filtered by each filter device during the operation of the water purifier. It can be understood that the types of parameters specifically included in the water quality operating parameters can be one type or multiple types. For each type of parameter, different types of detection devices can be used to detect and collect water quality parameters. At the same time, the parameters of each detection device The specific setting position is not unique, as long as various water quality parameters of purified water can be collected reasonably.

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

The controller 104 is connected with the detection device 102, determines the estimated total water purification volume of the water purifier according to the water quality operating parameters, and compares the expected total water purification volume with the design total water purification volume range, and when the estimated total water purification volume is not within the design total net water volume When the water volume is in the range, the waste water flow regulating device 106 is controlled to regulate the waste water flow of the water purifier.

Among them, the estimated total water purification volume of the water purifier is the total water purification volume of the reverse osmosis membrane filter element predicted based on the water quality operating parameters currently detected. Within the time limit, the total water purification volume that is expected to be achieved when the reverse osmosis membrane filter element of the water purifier performs water purification work.

The designed total water purification capacity of the water purifier means that within the preset service life of the water purifier, when the water purification flow rate of the water purifier is higher than the preset nominal water purification flow rate, the reverse osmosis membrane filter element of the water purifier can The total net water volume achieved. It can be understood that the designed total net water volume is not a fixed value, but a range, including an upper limit and a lower limit.

Among them, after the raw water in the water purifier is purified by reverse osmosis, waste water containing more impurities and purified water that can be used for drinking will be obtained. The recovery rate of the water purifier refers to the water produced in the reverse osmosis water purifier. The ratio of purified water to raw water.

Among them, the calculation method of the recovery rate of the water purifier is:

X _{recovery rate} = V _{clean water flow} / (V _{clean water flow} + V _{waste water flow} ),

Among them, X _{recovery rate} represents the recovery rate of the water purifier, V _{purified water flow} represents the purified water flow data, and V _{waste water flow} represents the waste water flow data.

Specifically, the controller 104 determines the estimated total water purification volume of the water purifier according to the water quality operating parameters, and compares the estimated total water purification volume with the range of the designed total water purification volume of the water purifier. The scope of the net water volume, or, when the expected total net water volume is greater than the scope of the designed total water net volume, it is determined that the estimated total water net volume is not within the scope of the designed total water net volume, and the controller 104 generates a control adjustment command, which will The control adjustment command is sent to the wastewater flow adjustment device 106 . Control the waste water flow regulating device 106 to adjust the waste water flow of the water purifier. By adjusting the waste water flow, the ratio of the purified water of the water purifier to the raw water can be adjusted, thereby adjusting the recovery rate of the water purifier.

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

Wherein, the wastewater flow regulating device 106 is a device capable of adjusting the wastewater flow of the water purifier. It can be understood that in this embodiment, the wastewater flow regulating device 106 is arranged on the wastewater branch 103 of the reverse osmosis membrane filter element.

Specifically, after receiving the control and adjustment instruction from the controller 104, the wastewater flow regulating device 106 executes the wastewater flow regulation scheme corresponding to the control and regulation instruction to adjust the wastewater flow of the water purifier.

Among the above-mentioned water purifiers, the estimated total water purification capacity of the water purifier is determined according to the water quality operating parameters of the water purifier in the water purifier, so that it can reflect the impact of water quality on the water purification capacity of the water purifier. If it is not within the range of the designed total water purification capacity of the water purifier, that is, less than the lower limit of the design total water purification range, or greater than the upper limit of the design total water purification range, it means that the water purification capacity is affected by the local water quality and is not within the designed range. Within the scope of the total water purification volume, by controlling the waste water flow regulating device to adjust the waste water flow of the water purifier, the recovery rate of the water purifier can be adaptively adjusted according to the water quality in various places.

In one embodiment, the controller 104 controls the waste water flow regulating device 106 to increase the waste water flow when the estimated total clean water volume is less than the lower limit of the designed total clean water volume range.

As mentioned in the background technology, during the actual installation and use of reverse osmosis water purifiers in the prior art, due to the fixed recovery rate, the problem of unstable water purification performance is prone to occur. The reason for this problem is that the water quality varies greatly across the country. At the same time, even in the same area, due to weather or other reasons, it is easy to cause changes in the water quality of each area. For example, the traditional fixed water purification proportional valve is prone to 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 estimated total water purification volume according to the water quality operating parameters, it compares the expected total water intake with the range of the designed total water purification volume, and when the estimated total water purification volume is less than the design total When the lower limit of the water purification range is reached, it means that the quality of the raw water passing through the water purifier is poor, and the recovery rate initially set by the water purifier is too high. It is necessary to reduce the recovery rate to prevent the water purifier from generating waste water valve or reverse osmosis filter. Membrane congestion occurs due to fouling. The controller 104 generates a waste water flow increase control command, sends the waste water flow increase control command to the waste water flow regulating device 106, and controls the waste water flow regulating device 106 to increase the waste water flow of the water purifier. By increasing the waste water flow, the proportion of purified water produced by the water purifier in the raw water can be reduced, thereby reducing the recovery rate of the water purifier, and preventing the water purifier from clogging the waste water valve or reverse osmosis membrane due to fouling .

In one of the embodiments, when the estimated total net water volume is less than the lower limit of the design total net water volume range, the controller 104 determines the current waste water flow level; when the current waste water flow level is not the maximum level, increase Wastewater flow gear.

Among them, the wastewater flow level is related to the size of the wastewater flow, the lower the wastewater flow level, the smaller the passing wastewater flow; the higher the wastewater flow level, the greater the passing wastewater flow. The waste water flow gear can be the gear of the waste water valve, that is, different waste water valve gears correspond to different waste water flows. At this time, the waste water flow gear can be adjusted by the waste water valve. It can be understood that the specific number of waste water flow levels can be set according to the actual situation of the water purifier and the actual water quality, which is not limited in this application.

Specifically, when the estimated total water purification volume is less than the lower limit of the designed total water purification volume range, the controller 104 first determines the current waste water flow level of the water purifier, and when the current waste water flow level is not the maximum level, generates an increase The waste water flow level adjustment control command is sent to the waste water flow adjustment device 106, and the waste water flow adjustment device 106 responds to the waste water flow level adjustment control command to increase the waste water flow level by one level. Specifically, it may be to open a larger waste water flow channel, or to increase the opening degree of the waste water valve, or to increase a waste water valve channel.

If the current wastewater flow gear is the maximum gear, then keep the current wastewater flow gear unchanged. In this embodiment, the ratio of purified water produced by the water purifier to the raw water volume is reduced by increasing the waste water flow rate, thereby reducing the recovery rate of the water purifier to prevent the water purifier from producing waste water valves or reverse osmosis membranes due to fouling. Congestion problem.

In one of the embodiments, the controller 104 controls the waste water flow regulating device 106 to reduce the waste water flow when the estimated total clean water volume is greater than the upper limit of the designed total clean water volume 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 estimated total water purification volume according to the water quality operating parameters, it compares the expected total water inflow with the range of the designed total water purification volume, and when the estimated total water purification volume is greater than the designed total water purification volume When the upper limit of the range is set, it means that the quality of the raw water passing through the water purifier is relatively good, and the recovery rate initially set by the water purifier is low. It is necessary to increase the recovery rate to prevent the water purifier from wasting water resources during the water purification process. question. The controller 104 generates a waste water flow reduction control instruction, sends the waste water flow reduction control instruction to the waste water flow regulating device 106, and controls the waste water flow regulating device 106 to reduce the waste water flow of the water purifier. By reducing the waste water flow, the proportion of purified water produced by the water purifier in the raw water can be increased, thereby increasing the recovery rate of the water purifier, and preventing the water purifier from easily causing waste of water resources in areas with good water quality.

In one of the embodiments, when the estimated total net water volume is greater than the upper limit of the design total net water volume range, the controller 104 determines the current waste water flow level; when the current waste water flow level is not the minimum level, reduce Wastewater flow gear.

Specifically, when the estimated total clean water volume is greater than the upper limit of the designed total clean water volume range, the controller 104 first determines the current wastewater flow gear of the water purifier, and generates a reduced waste water flow gear when the current wastewater flow gear is not the minimum gear. The flow level adjustment control command is sent to the wastewater flow adjustment device 106, and the wastewater flow adjustment device 106 responds to the waste water flow level adjustment control command to lower the waste water flow level by one level. If the current wastewater flow gear is the minimum gear, then keep the current wastewater flow gear unchanged. In this embodiment, the proportion of purified water produced by the water purifier in the raw water volume is increased by reducing the waste water flow level, thereby increasing the recovery rate of the water purifier, and preventing the water purifier from easily causing waste of water resources in areas with good water quality. question.

Wherein, when increasing or decreasing the waste water flow level, it is not limited to step-by-step adjustment, the controller 104 can also control the waste water flow regulating device 106 to adjust the current The wastewater flow gear is adjusted across gears.

Specifically, when the controller 104 determines that the estimated total water purification volume is less than the lower limit of the designed total water purification volume, or the estimated total water purification volume is greater than the upper limit of the designed total water purification volume, according to the expected total water purification volume and the design total net water volume The difference in water volume controls the waste water flow regulating device 106 to adjust the current waste water flow level across gears. For example, if the estimated total purified water volume is less than the lower limit of the designed total purified water volume, and the difference between the estimated total purified water volume and the designed total purified water volume is large, the wastewater flow regulating device 106 can be controlled to increase the current wastewater flow level to Two or more files larger. Using the method in this embodiment, when the difference between the estimated total net water volume and the designed total net water volume is large, the waste water regulating device 106 can be directly controlled to adjust the waste water flow level to an appropriate level, without step by step Adjustment makes the whole adjustment process more flexible and convenient.

In the above embodiment, when the controller determines that the estimated total water purification volume is less than the lower limit of the design total water purification volume, or when the estimated total water purification volume is greater than the upper limit of the design total water purification volume, it generates a corresponding increase or decrease of the waste water flow rate By controlling the waste water flow regulating device to adjust the waste water flow of the water purifier, the proportion of purified water in the raw water can be adjusted, and then the recovery rate of the water purifier can be adjusted to realize the self-adaptation of the recovery rate of the water purifier Adjustment, so as to solve the problem that the filter element of the water purifier is blocked quickly in the area with poor water quality, and the problem of wasting water in the area with good water quality.

In one of the embodiments, the detection device includes a flow sensor; the water quality operation parameter includes the flow of clean water.

Wherein, the clean water flow rate refers to the amount of water flowing through the flow sensor per unit time detected by the flow sensor when the clean water faucet is opened.

Specifically, when the clean water flows through the flow sensor, the flow sensor generates corresponding pulses, and the corresponding clean water flow can be calculated according to the corresponding number of generated pulses per unit time. For example, the water flow corresponding to a unit pulse is 0.15L. If the flow sensor detects 20 pulses per unit time, the corresponding clean water flow data is 0.15×20=3L/min.

The controller calculates the expected total water purification volume based on the water purification flow rate obtained by the detection device, and compares the estimated total water purification volume with the range of the designed total water purification volume. When the volume ranges, by controlling the wastewater flow regulating device to adjust the wastewater flow of the water purifier, the recovery rate of the water purifier can be adaptively adjusted according to the water quality in various places.

In one of the embodiments, the detection device further includes: a temperature sensor; the water quality operation parameters also include water temperature; the controller calculates the cumulative total net water volume and the corrected net water flow rate according to the net water flow, water temperature and preset temperature correction coefficient ;

Among them, the preset temperature correction coefficient is the temperature characteristic parameter of the reverse osmosis membrane, which is a dimensionless parameter, and its main purpose is to correct the clean water flow rate to obtain the corrected clean water flow rate data when the temperature is 25°C. It can be understood that the value of the preset temperature correction coefficient is not fixed, and its specific value changes according to the actual temperature when the water purifier is currently in use. A preset temperature correction coefficient is shown in Table 1, and the preset temperature correction coefficient is shown in Table 1. It is assumed that the temperature correction coefficient takes a value of 1 when the temperature is 25°C, a value greater than 1 when the temperature is lower than 25°C, and a value less than 1 when the temperature is higher than 25°C.

Table 1 Preset temperature correction coefficients

Among them, the cumulative total water purification volume is obtained by converting the cumulative pulse number detected by the flow sensor into the total water passing volume. For the cumulative pulse number, the cumulative total water purification volume of the water purifier from the beginning of use to the current detection moment can be calculated according to the unit water flow corresponding to the cumulative pulse number and the unit pulse number of the flow sensor. For example, if the unit water flow corresponding to a unit pulse is 0.15L, and the accumulated pulse number recorded by the flow sensor is 50000, then the cumulative total water purification volume corresponding to the water purifier is 0.15×50000=7500L.

Wherein, the corrected purified water flow is the purified water flow of the current water purifier when the temperature is 25°C. Specifically, the temperature sensor detects the temperature of the water flowing through the temperature sensor, obtains the water temperature data of the purified water according to the detected data, and calculates the corrected purified water according to the purified water flow, water temperature and preset temperature correction coefficient collected by the flow sensor. flow.

In one of the embodiments, the calculation formula for correcting the flow rate of clean water is:

Q _{corrected clean water flow} = Q _{clean water flow} × K _{preset temperature correction coefficient} (T _{water temperature} ),

Among them, Q _{corrected purified water flow rate} represents the corrected purified water flow rate data at the current detection moment, Q _{purified water flow rate} represents the purified water flow rate data at the current detected moment, K _{preset temperature correction coefficient} represents the preset temperature correction coefficient, T _{water temperature} represents the current The water temperature data of the purified water at the time of detection.

Specifically, according to the data collected and detected by the flow sensor and temperature sensor in the detection device, the water purification flow and water temperature of the water purifier are obtained, and the cumulative total water purification volume of the water purifier is calculated according to the water purification flow of the water purifier , according to the purified water flow rate of the water purifier, the water temperature and the preset temperature correction coefficient, the corrected purified water flow rate of the water purifier is calculated.

The attenuation coefficient is calculated based on at least two groups of cumulative total net water volume and corrected net water flow;

Among them, the attenuation coefficient refers to the flow attenuation coefficient of the reverse osmosis membrane, and the attenuation coefficient can reflect the speed attenuation of the water flow rate of the 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, the faster the water flow of the filter element attenuates.

Specifically, the controller calculates at least two sets of cumulative total purified water flow and corrected purified water flow through the purified water flow, water temperature and preset temperature correction coefficients detected and collected by the detection device. It can be understood that any two groups of cumulative total net water volume and corrected net water flow rate are detected within a preset time interval. The attenuation coefficient is calculated based on at least two sets of cumulative total net water volume and corrected net water flow.

In one of the embodiments, the formula for calculating the attenuation coefficient is:

Among them, the Bi _{attenuation coefficient} is the attenuation coefficient data at the current detection moment, _{the accumulated total water purification volume of} Li is the cumulative total water purification quantity data at the current detection moment, and the Q _{i corrected purified water flow rate} is the corrected purified water flow rate data at the current detected moment .

The average cumulative total net water volume calculated for multiple groups of cumulative total net water volumes,

The average corrected clean water flow calculated for multiple sets of corrected clean water flows,

and

The calculation formula is:

Wherein, i is the number of groups corresponding to the cumulative total net water volume used to calculate the attenuation coefficient and the corrected water net volume.

According to the attenuation coefficient, the cumulative total net water volume, the corrected net water flow rate and the preset nominal net water flow rate, the estimated total net water volume is calculated.

Among them, the nominal water purification flow rate is the theoretical water purification flow rate marked according to its own performance when the water purifier leaves the factory.

In one of the embodiments, the calculation formula of the estimated total net water volume is:

E _{estimated total net water volume} = (B _{nominal net water flow} -Q _{i corrected net water flow} )/B _{i attenuation coefficient} + L _{i cumulative total net water volume} ,

Among them, _{the estimated total purified water volume} of E is the estimated total purified water volume data at the current detection moment, _{the nominal purified water flow rate of} B is the nominal purified water flow rate data, and _{the corrected purified water flow rate of Q i} is the corrected purified water flow rate data at the current detection moment , the Bi _{attenuation coefficient} is the attenuation coefficient data at the current detection moment, and _{the accumulated total water purification amount at} Li is the accumulated total water purification amount data at the current detection moment.

Specifically, the controller calculates the estimated total purified water volume according to the attenuation coefficient, the cumulative total purified water volume, the corrected purified water flow rate, and the preset nominal purified water flow rate.

In the above embodiment, the flow sensor and temperature sensor in the detection device detect the water quality of the water flowing through the water purifier to obtain the purified water flow and water temperature of the purified water in the water purifier, and the collected purified water flow and water temperature It is transmitted to the controller, and the controller calculates the cumulative total purified water volume and corrected purified water flow of the water purifier based on the received purified water flow and water temperature, and according to the preset temperature correction coefficient, based on at least two groups of cumulative total purified water Calculate the attenuation coefficient with the corrected net water flow, and calculate the estimated total net water volume based on the attenuation coefficient, the cumulative total net water volume, the corrected net water flow, and the preset nominal net water flow. Using the method in the above embodiment, the estimated total water purification volume can be obtained according to the water quality parameters detected in real time, so it can be ensured that the estimated total water purification volume can reflect the impact of water quality on the water purification capacity of the water purifier.

In one of the embodiments, the waste water flow regulating device includes: an adjustable waste water valve arranged on the waste water branch road, and the waste water flow is adjusted through the adjustable waste water valve.

Among them, the waste water valve is a very important part of water purification equipment such as water purifiers. Its main function is to discharge the waste water generated during the filtration process in time, prevent the fouling of the filter element caused by the enrichment of waste water inside the filter element, and adjust the internal pressure of the filter element so that The filter element is functioning normally. It can be understood that the adjustable waste water valve is a waste water valve that can adjust the waste water flow when the waste water passes through. By adjusting the adjustable waste water valve, the waste water flow of the water purifier can be adjusted.

In one of the embodiments, the adjustable waste water valve has multiple flow channels corresponding to multiple flow gears or flow openings of multiple sizes corresponding to multiple flow gears.

Wherein, as shown in FIG. 3 , the adjustable waste water valve may have multiple flow channels, and the multiple flow channels are arranged side by side, and each flow channel is provided with a corresponding gear switch valve and an orifice. Each flow channel can pass through a different amount of waste water. The water inlet of each flow channel is connected to the waste water inlet of the waste water branch, and the water outlet of each flow channel is connected to the waste water outlet of the waste water branch. The wastewater flow gears of the water purifier during operation correspond to the flow channels opened by the wastewater valve during operation.

Taking a water purifier with three wastewater flow gears as an example, the adjustable wastewater valve of the water purifier has three wastewater flow channels, and each wastewater flow channel is provided with a switch valve and an orifice. When the switch valve is opened, the The corresponding waste water flow channel is connected; the switch valve is closed, and the corresponding waste water flow channel is closed. If the first flow channel is opened during the operation of the water purifier, it is considered that the wastewater flow gear of the water purifier is at gear 1 at this time; when the second flow channel is opened, it is considered that the wastewater flow gear of the water purifier is at 2 at this time When the third flow channel is opened, it is considered that the waste water flow of the water purifier is at the third gear at this time. Among them, the size of the flow channel from the first gear to the third gear increases sequentially.

Specifically, when the controller compares the estimated total water purification volume with the designed total water purification volume range, and determines the current waste water flow gear of the water purifier when the estimated total water purification volume is less than the lower limit of the designed total water purification volume range, If the wastewater flow gear is at the maximum gear at this time, that is, the wastewater flow gear is at the third gear at this time, keep the current wastewater flow gear unchanged; if the wastewater flow gear is not at the maximum gear at this time, that is, the wastewater flow rate at this time When the gear position is 2nd gear or 1st gear, a control command for increasing the waste water flow gear adjustment is generated, and the wastewater regulating device is controlled to open the switch valve of the 3rd gear or 2nd gear flow channel, and close the 2nd gear or 1st gear flow channel. The effect of increasing the waste water flow level by one level is achieved.

When the controller compares the estimated total water purification volume with the designed total water purification volume range, and determines the current waste water flow level of the water purifier when the estimated total water purification volume is greater than the upper limit of the design total water purification volume range, if at this time The wastewater flow gear is at the minimum gear, that is, the wastewater flow gear is at gear 1 at this time, and the current wastewater flow gear remains unchanged; if the wastewater flow gear is not at the minimum gear at this time, that is, the wastewater flow gear is at this time When the 2nd gear or 3rd gear is used, it will generate a gear adjustment control command to reduce the waste water flow, control the waste water regulating device to open the switch valve of the 1st gear or 2nd gear flow channel, and close the 2nd gear or 3rd gear flow channel switch valve to reduce the waste water flow. Gears The effect of lowering one gear.

Wherein, the adjustable waste water valve is also provided with a flushing flow channel, and a flushing on-off valve arranged on the flushing flow channel, and the flushing flow channel and the waste water flow channel are placed side by side. When the flushing switch valve is opened, it is considered that the water purifier is in a flushing state at this time.

Wherein, as shown in Fig. 4 and Fig. 5, the adjustable waste water valve may also be a waste water valve having flow openings of various sizes. Specifically, the larger the size of the flow opening of the waste water valve, the greater the flow of waste water that can pass through. When in use, the adjustable waste water valve controls one of the flow openings to be in a conducting state, and the other flow openings are not conducting. When the water purifier is in operation, the waste water flow gears correspond to the flow openings connected to the water inlet of the waste water branch road during operation.

Taking a water purifier with three waste water flow levels as an example, the adjustable waste water valve of the water purifier has a waste water inlet, and three waste water outlets with flow openings of different sizes. The sizes of the three flow openings are according to the preset The ratio increases successively, and each waste water outlet has a corresponding waste water flow channel and valve needle. When the water purifier is in the running state, the adjustable waste water valve controls one of the flow openings to be in a conducting state, and the other flow openings are not conducting, and the waste water produced by the water purifier is discharged from the waste water outlet corresponding to the conducting flow opening. Among them, when the flow opening with the smallest control opening size of the adjustable waste water valve is in the conduction state, it is considered that the waste water flow gear of the water purifier is at gear 1 at this time; When it is in the conduction state, it is considered that the waste water flow of the water purifier is at the second gear at this time; when the flow opening with the largest opening size controlled by the adjustable waste water valve is in the conduction state, it is considered that the waste water flow of the water purifier is at this time The gear is 3 gears.

Specifically, when the controller compares the estimated total water purification volume with the designed total water purification volume range, and determines the current waste water flow gear of the water purifier when the estimated total water purification volume is less than the lower limit of the designed total water purification volume range, If the wastewater flow gear is at the maximum gear at this time, that is, the wastewater flow gear is at the third gear at this time, keep the current wastewater flow gear unchanged; if the wastewater flow gear is not at the maximum gear at this time, that is, the wastewater flow rate at this time When the gear position is 2nd gear or 1st gear, a control command for increasing the waste water flow gear adjustment is generated to control the waste water regulating device to close the flow opening of the current size, and conduct a flow opening that is one level larger than the current flow opening size. By increasing The size of the flow opening achieves the effect of increasing the waste water flow level by one level.

When the controller compares the estimated total water purification volume with the designed total water purification volume range, and determines the current waste water flow level of the water purifier when the estimated total water purification volume is greater than the upper limit of the design total water purification volume range, if at this time The wastewater flow gear is at the minimum gear, that is, the wastewater flow gear is at gear 1 at this time, and the current wastewater flow gear remains unchanged; if the wastewater flow gear is not at the minimum gear at this time, that is, the wastewater flow gear is at this time In the 2nd or 3rd gear, a control command for reducing the waste water flow level adjustment is generated, and the waste water regulating device is controlled to close the flow opening of the current size, and conduct a flow opening that is one level smaller than the current flow opening size. By reducing the flow opening Size, to achieve the effect of reducing the waste water flow gear by one gear.

In one of the embodiments, the adjustable waste water valve is also provided with a flushing water outlet. When the adjustable waste water valve closes the flow openings of all sizes and turns on the flushing water outlet, the water purifier is considered to be in the flushing state at this time.

In one of the embodiments, the adjustable waste water valve can also be a stepless regulating valve. The stepless regulating valve is a solenoid valve with multiple different flow gears. When adjusting the flow gear, it belongs to stepless adjustment, that is, the flow can be adjusted arbitrarily within a certain range. As shown in Figure 6 and Figure 7, the stepless regulating valve has an upper valve plate and a lower valve plate, and the upper valve plate has a flow channel of a fixed size; the size of the flow channel on the lower valve plate shows a changing trend, such as gradually increasing or progressively smaller. During use, by adjusting the corresponding positions of the upper valve plate channel and the lower valve plate channel, the waste water passes through the flow channels corresponding to the lower valve plates at different positions to adjust the waste water flow rate.

Specifically, when the controller compares the estimated total water purification volume with the designed total water purification volume range, and determines the current waste water flow gear of the water purifier when the estimated total water purification volume is less than the lower limit of the designed total water purification volume range, If the wastewater flow gear is at the maximum gear at this time, keep the current wastewater flow gear unchanged; if the wastewater flow gear is not at the maximum gear at this time, generate an adjustment control command to increase the wastewater flow gear to control the stepless adjustment The position corresponding to the channel of the upper valve plate and the channel of the lower valve plate of the valve, moving the position of the channel of the upper valve plate to the channel of the lower valve plate can pass through the area with a larger flow of waste water, so as to increase the flow of waste water by one gear. .

When the controller compares the estimated total water purification volume with the designed total water purification volume range, and determines the current waste water flow level of the water purifier when the estimated total water purification volume is greater than the upper limit of the design total water purification volume range, if at this time If the wastewater flow gear is at the minimum gear, the current wastewater flow gear will remain unchanged; if the wastewater flow gear is not at the minimum gear at this time, an adjustment control command will be generated to reduce the wastewater flow gear to control the upper valve plate of the stepless regulating valve The channel corresponds to the position of the lower valve plate channel, and the position of the upper valve plate channel is moved to the area of the lower valve plate channel where the waste water flow rate is smaller, so as to reduce the waste water flow level by one level.

In one of the embodiments, as shown in FIG. 8 , the wastewater flow regulating device 106 includes: a wastewater flow return device 201 and a wastewater valve 202 arranged on the wastewater branch 103 ;

The return device 201 includes a waste water return branch 2011, and a return solenoid valve 2012 and an orifice 2013 arranged on the waste water return branch 2011; one end of the waste water return branch 2011 is connected to the waste water branch 103, and the other end is connected to the water purifier The water inlet of the booster pump; the waste water flow of the water purifier is adjusted by adjusting the switch state of the return solenoid valve 2012.

Among them, the solenoid valve is an automatic basic component used to control the direction of the fluid, and the switching state of the solenoid valve can be controlled by controlling the power-on state of the solenoid valve.

Wherein, the waste water valve 202 is a semi-on-off 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 waste water passing through is small; Heavy traffic.

Specifically, one end of the waste water return branch 2011 is connected to the waste water branch 103, and the other end is connected to the water inlet of the booster pump of the water purifier. The waste water to be discharged through the waste water branch 2011 is re-drained, and part of the waste water is returned to the water inlet of the booster pump. After the wastewater enters the water inlet of the booster pump, it continues to flow through the booster pump and the reverse osmosis membrane filter element for secondary water purification operations. Repeated water purification operations on the wastewater reduce the wastewater flow rate of the water purifier and increase the net water efficiency. The proportion of water flow in the raw water flow, so as to achieve the effect of adjusting the recovery rate of the water purifier.

Taking a water purifier with three waste water flow levels as an example, the waste water flow regulating device of the water purifier includes: a waste water flow return device and a waste water valve arranged on the waste water branch road; A return solenoid valve and an orifice on the waste water return branch. When the water purifier is in the running state, the waste water flow regulating device can adjust the waste water flow by controlling the switching state of the return solenoid valve. Among them, when the waste water valve is powered off and the return solenoid valve is continuously energized, it is considered that the waste water flow gear is at the first gear at this time, and the waste water valve is in a half-open state at this time, the waste water return branch is turned on, and the return flow solenoid valve drains a large part of the waste water To the water inlet of the booster pump, repeat the water purification operation, and the waste water flow is the smallest at this time.

When the waste water valve is de-energized and the return solenoid valve is energized intermittently (power on for the preset number of seconds, then power off for the preset number of seconds, and repeat the process), it is considered that the waste water flow gear is at the second gear at this time, and the waste water at this time The valve is still in a half-open state, and the return solenoid valve can drain a small amount of wastewater for repeated water purification operations. At this time, the wastewater flow rate of the water purifier has increased to a certain extent compared with the first gear.

When both the waste water valve and the return solenoid valve are powered off, it is considered that the waste water flow level is at level 3 at this time. At this time, the waste water return branch is closed and the waste water valve is in a half-open state. The valve flows out, and the wastewater flow rate of the water purifier is the largest at this time.

Specifically, when the controller compares the estimated total water purification volume with the designed total water purification volume range, and determines the current waste water flow gear of the water purifier when the estimated total water purification volume is less than the lower limit of the designed total water purification volume range, If the wastewater flow gear is at the maximum gear at this time, that is, the wastewater flow gear is at the third gear at this time, keep the current wastewater flow gear unchanged; if the wastewater flow gear is not at the maximum gear at this time, that is, the wastewater flow rate at this time When the gear is 2nd gear or 1st gear, a gear adjustment control instruction for increasing the waste water flow is generated. When the wastewater flow gear is at the 2nd gear at this time, control the return solenoid valve to keep the energized state, and adjust the wastewater flow gear to the 3rd gear; when the wastewater flow gear is at the 1st gear at this time, control the return solenoid valve to be energized intermittently, Adjust the wastewater flow gear to 2nd gear. By increasing the flow rate of the returning wastewater, the effect of increasing the wastewater flow level by one level is achieved.

When the controller compares the estimated total water purification volume with the designed total water purification volume range, and determines the current waste water flow level of the water purifier when the estimated total water purification volume is greater than the upper limit of the design total water purification volume range, if at this time The wastewater flow gear is at the minimum gear, that is, the wastewater flow gear is at gear 1 at this time, and the current wastewater flow gear remains unchanged; if the wastewater flow gear is not at the minimum gear at this time, that is, the wastewater flow gear is at this time In the 2nd gear or the 3rd gear, a gear adjustment control instruction for reducing the waste water flow is generated. When the waste water flow level is at the 2nd gear at this time, control the backflow solenoid valve to power off, and adjust the waste water flow level to the 1st gear; The wastewater flow gear is adjusted to 2nd gear. By reducing the flow rate of the return wastewater, the effect of lowering the wastewater flow level by one level is achieved.

It should be understood that although the steps in the flow charts involved in the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in the flow charts involved in the above-mentioned embodiments may include multiple steps or stages, and these steps or stages are not necessarily executed at the same time, but may be performed at different times For execution, the execution order of these steps or stages is not necessarily performed sequentially, but may be executed in turn or alternately with other steps or at least a part of steps or stages in other steps.

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

In one embodiment, as shown in FIG. 9 , a method for controlling a water purifier is provided, including:

Step 302, collecting water quality operating 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, during the operation of the water purifier, the detection device installed in the water purifier can detect the water quality of the water flowing through the water purifier, and obtain and collect corresponding water quality operating parameters. The detection device is connected with the controller, and can transmit the collected water quality operation parameters to the controller.

Step 304, determine the estimated total water purification volume of the water purifier according to the water quality operating parameters.

Specifically, the controller determines the estimated total water purification volume of the water purifier according to the water quality operating parameters. The specific method has been described in the previous embodiments related to the water purifier, and will not be repeated here.

Step 306, comparing the estimated total purified water volume with the designed total purified water volume range, and controlling the wastewater flow regulating device to adjust the wastewater flow of the water purifier when the estimated total purified water volume is not within the designed total purified water volume range.

Among them, the designed total water purification capacity of the water purifier refers to the amount that the reverse osmosis membrane filter element of the water purifier can achieve when the water purifier continues to operate at the initially set recovery rate within the preset service life of the water purifier. total net water volume. It can be understood that the designed total net water volume is not a fixed value, but a range, including an upper limit and a lower limit.

In one of the embodiments, the calculation method of the recovery rate of the water purifier is:

Specifically, the controller determines the estimated total water purification volume of the water purifier according to the water quality operating parameters, and compares the estimated total water purification volume with the range of the designed total water purification volume of the water purifier. range of the water volume, or, when the estimated total net water volume is greater than the design range of the total net water volume, it is determined that the estimated total water volume is not within the scope of the designed total water volume, and the controller generates a control adjustment instruction to control the adjustment The command is sent to the waste water flow regulator. Control the waste water flow regulating device to adjust the waste water flow of the water purifier. By adjusting the waste water flow, the ratio of the purified water of the water purifier to the raw water can be adjusted, thereby adjusting the recovery rate of the water purifier.

The specific method has been described in the previous embodiment in which the controller of the water purifier controls the wastewater flow regulating device to adjust the wastewater flow, and will not be repeated here.

In the above water purifier control method, the estimated total water purification capacity of the water purifier is determined according to the water quality operating parameters of the water purifier in the water purifier, so that it can reflect the impact of water quality on the water purification capacity of the water purifier. When the water volume is not within the range of the designed total water purification volume of the water purifier, that is, less than the lower limit of the design total water purification volume range, or greater than the upper limit of the design total water purification volume range, it means that the water purification capacity is affected by the local water quality and is not in use. Within the designed total clean water volume range, by controlling the waste water flow regulating device to adjust the waste water flow of the water purifier, the recovery rate of the water purifier can be adaptively adjusted according to the water quality in various places.

In one of the embodiments, when the estimated total net water volume is not within the design total net water volume range, controlling the waste water flow regulating device to adjust the waste water flow of the water purifier includes: when the estimated total net water volume is less than the designed total water net volume When the lower limit of the range is reached, the waste water flow regulating device is controlled to increase the waste water flow.

Specifically, after the estimated total net water volume is calculated according to the water quality operating parameters, the expected total water inflow is compared with the range of the designed total water net volume. It shows that the quality of raw water passing through the water purifier is poor, and the recovery rate initially set by the water purifier is too high. It is necessary to reduce the recovery rate to prevent the water purifier from generating waste water valves or reverse osmosis membranes from being blocked due to scaling. question.

The specific method has been described in the previous embodiment in which the controller of the water purifier controls the wastewater flow regulating device to increase the wastewater flow, and will not be repeated here.

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

When the estimated total net water volume is less than the lower limit of the design total net water volume range, determine the current wastewater flow gear; when the current wastewater flow gear is not the maximum gear, increase the wastewater flow gear.

Specifically, when the estimated total clean water volume is less than the lower limit of the design total clean water volume range, the controller first determines the current wastewater flow gear of the water purifier, and when the current wastewater flow gear is not the maximum gear, an increased waste water is generated The flow level adjustment control command is sent to the waste water flow adjustment device, and the waste water flow adjustment device responds to the increase waste water flow level adjustment control command to increase the waste water flow level by one level. If the current wastewater flow gear is the maximum gear, then keep the current wastewater flow gear unchanged.

The specific method has been described in the previous embodiment in which the controller of the water purifier increases the waste water flow level, and will not be repeated here.

In one of the embodiments, when the expected total net water volume is not within the design total net water volume range, controlling the waste water flow regulating device to adjust the waste water flow of the water purifier also includes:

When the expected total net water volume is greater than the upper limit of the designed total net water volume range, the waste water flow regulating device is controlled to reduce the waste water flow.

Specifically, after the estimated total water purification volume is calculated according to the water quality operating parameters, the estimated total water inflow is compared with the range of the designed total water purification volume. When the estimated total water purification volume is greater than the upper limit of the designed total water purification volume range, The controller generates a waste water flow reduction control command, sends the waste water flow reduction control command to the waste water flow regulating device, and controls the waste water flow regulating device to reduce the waste water flow of the water purifier.

The specific method has been described in the previous embodiment in which the controller of the water purifier controls the wastewater flow regulating device to reduce the wastewater flow, and will not be repeated here.

In one of the embodiments, when the expected total net water volume is greater than the upper limit of the designed total net water volume range, the waste water flow regulating device is controlled to reduce the waste water flow, including:

When the estimated total net water volume is greater than the upper limit of the designed total net water volume range, determine the current wastewater flow gear; when the current wastewater flow gear is not the minimum gear, reduce the wastewater flow gear.

Specifically, when the estimated total clean water volume is greater than the upper limit of the design total clean water volume range, the controller first determines the current wastewater flow gear of the water purifier, and generates a waste water flow reduction gear when the current wastewater flow gear is not the minimum gear. The gear adjustment control command is sent to the wastewater flow adjustment device, and the wastewater flow adjustment device responds to the waste water flow gear adjustment control command to lower the wastewater flow gear by one gear. If the current wastewater flow gear is the minimum gear, then keep the current wastewater flow gear unchanged.

The specific method has been described in the previous embodiment in which the controller of the water purifier lowers the waste water flow level, and will not be repeated here.

In one of the embodiments, the water quality operation parameters include clean water flow.

Specifically, the controller calculates the estimated total water purification volume according to the purified water flow rate detected by the detection device, and compares the estimated total water purification volume with the range of the designed total water purification volume. When designing the range of total water purification, by controlling the waste water flow regulating device to adjust the waste water flow of the water purifier, the recovery rate of the water purifier can be adaptively adjusted according to the water quality in various places.

The specific method has been described in the previous embodiment in which the detection device of the water purifier includes a flow sensor, and will not be repeated here.

In one of the embodiments, the water quality operating parameters also include water temperature; according to the water quality operating parameters, the estimated total water purification capacity of the water purifier is determined, including:

According to the clean water flow, water temperature and preset temperature correction coefficient, calculate the cumulative total clean water volume and corrected clean water flow;

Specifically, the flow sensor and temperature sensor in the detection device detect the water quality of the water flowing through the water purifier, collect the purified water flow and water temperature of the purified water, and transmit the collected purified water flow and water temperature to the controller, and the controller According to the received purified water flow and water temperature, according to the preset temperature correction coefficient, the cumulative total purified water volume and corrected purified water flow of the water purifier are calculated based on at least two sets of accumulated total purified water volume and corrected purified water flow. The attenuation coefficient, and calculate the estimated total net water volume based on the attenuation coefficient, the cumulative total net water volume, the corrected net water flow rate, and the preset nominal net water flow rate.

The specific method has been described in the previous series of embodiments in which the detection device of the water purifier includes a temperature sensor, and will not be repeated here.

In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure may be as shown in FIG. 10 . The computer device includes a processor, memory and a network interface connected by a system bus. Wherein, the processor of the computer device is used to provide calculation 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 databases. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the computer equipment is used to store the water quality operation parameters detected and collected by the water quality detection unit in the water purifier, various parameters preset by the water purifier when it leaves the factory, and the parameters calculated by the controller according to the collected water quality operation parameters. Various data. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a water purifier control method is realized.

Those skilled in the art can understand that the structure shown in Figure 10 is only a block diagram of a part of the structure related to the solution of this application, and does not constitute a limitation to the computer equipment on which the solution of this application is applied. The specific computer equipment can be More or fewer components than shown in the figures may be included, or some components may be combined, or have a different arrangement of components.

In one embodiment, a computer device is provided, which may be a controller in a water purifier, including a memory and a processor, and a computer program is stored in the memory. The steps of the water machine control method.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method for controlling a water purifier in the above-mentioned embodiments are implemented.

It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all Information and data authorized by the user or fully authorized by all parties.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above-mentioned embodiments can be completed by instructing related hardware through computer programs, and the computer programs can be stored in a non-volatile computer-readable memory In the medium, when the computer program is executed, it may include the processes of the embodiments of the above-mentioned methods. Wherein, any reference to storage, database or other media used in the various embodiments provided by the present application may include at least one of non-volatile and volatile storage. Non-volatile memory can include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive variable memory (ReRAM), magnetic variable memory (Magnetoresistive Random Access Memory, MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (Phase Change Memory, PCM), graphene memory, etc. The volatile memory may include random access memory (Random Access Memory, RAM) or external cache memory, etc. 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). The databases involved in the various embodiments provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a blockchain-based distributed database, etc., but is not limited thereto. The processors involved in the various embodiments provided by this application can be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, data processing logic devices based on quantum computing, etc., and are not limited to this.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be determined by the appended claims.

Claims

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

A detection device for collecting water quality operating parameters in the water purifier;

The controller is connected with the detection device, determines the estimated total net water volume of the water purifier according to the water quality operation parameters, and compares the estimated total net water volume with the design total net water volume range, and in the estimated total net water volume When the water volume is not within the range of the total designed water purification volume, control the waste water flow regulating device to adjust the waste water flow of the water purifier;

The waste water flow regulating device is connected with the controller, and adjusts the waste water flow of the water purifier in response to the control of the controller.
The water purifier according to claim 1, wherein the controller controls the wastewater flow regulating device to increase the wastewater flow when the estimated total water purification volume is less than the lower limit of the designed total water purification volume range.
The water purifier according to claim 2, wherein the controller determines the current wastewater flow gear when the estimated total water purification volume is less than the lower limit of the designed total water purification volume range; When the current wastewater flow gear is not the maximum gear, increase the wastewater flow gear.
The water purifier according to claim 1, wherein the controller controls the waste water flow regulating device to reduce the waste water flow when the estimated total water purification volume is greater than the upper limit of the design total water purification volume range.
The water purifier according to claim 4, wherein the controller determines the current wastewater flow gear when the estimated total water purification volume is greater than the upper limit of the designed total water purification volume range; When the current wastewater flow gear is not the minimum gear, reduce the wastewater flow gear.
The water purifier according to claim 1, wherein the detection device includes a flow sensor; and the water quality operation parameter includes a flow of purified water.
The water purifier according to claim 6, wherein the detection device further comprises: a temperature sensor; the water quality operation parameters also include water temperature; The temperature correction coefficient is used to calculate the cumulative total net water volume and corrected net water flow;

calculating and obtaining an attenuation coefficient based on the at least two groups of accumulated total water purification volumes and corrected water purification flow;

According to the attenuation coefficient, the cumulative total clean water volume, the corrected clean water flow rate and the preset nominal clean water flow rate, the estimated total clean water volume is calculated.
The water purifier according to claim 1, wherein the waste water flow regulating device comprises: an adjustable waste water valve arranged on a waste water branch road, through which the waste water flow is regulated.
The water purifier according to claim 8, wherein the adjustable waste water valve has multiple flow channels corresponding to multiple flow gears or flow openings of multiple sizes corresponding to multiple flow gears.
The water purifier according to claim 1, wherein the waste water flow regulating device comprises: a waste water flow return device and a waste water valve arranged on the waste water branch road;

The backflow device includes a waste water backflow branch, and a backflow solenoid valve and an orifice arranged on the waste water backflow branch; one end of the waste water backflow branch is connected to the waste water branch, and the other end is connected to the water purifier The water inlet of the booster pump; the waste water flow of the water purifier is adjusted by adjusting the switching state of the return solenoid valve.
A method for controlling a water purifier, characterized in that the method comprises:

Collect water quality operating parameters of the water purifier;

Determine the estimated total water purification capacity of the water purifier according to the water quality operating parameters;

According to the comparison between the estimated total water purification volume and the design total water purification volume range, when the estimated total water purification volume is not within the design total water purification volume range, control the waste water flow regulating device to the waste water of the water purifier The flow is adjusted.
The method according to claim 11, characterized in that, when the estimated total water purification volume is not within the range of the designed total water purification volume, controlling the waste water flow regulating device to adjust the waste water flow of the water purifier ,include:

When the estimated total clean water volume is less than the lower limit of the designed total clean water volume range, the waste water flow regulating device is controlled to increase the waste water flow.
The method according to claim 12, wherein, when the estimated total net water volume is less than the lower limit of the designed total net water volume range, controlling the waste water flow regulating device to increase the waste water flow comprises:

When the estimated total net water volume is less than the lower limit of the designed total net water volume range, determine the current waste water flow gear; when the current waste water flow gear is not the maximum gear, increase the waste water flow stalls.
The method according to claim 11, characterized in that, when the estimated total water purification volume is not within the range of the designed total water purification volume, controlling the waste water flow regulating device to adjust the waste water flow of the water purifier ,Also includes:

When the estimated total clean water volume is greater than the upper limit of the designed total clean water volume range, the waste water flow regulating device is controlled to reduce the waste water flow.
The method according to claim 14, characterized in that, when the estimated total net water volume is greater than the upper limit of the designed total net water volume range, controlling the waste water flow regulating device to reduce the waste water flow comprises:

When the estimated total net water volume is greater than the upper limit of the design total net water volume range, determine the current waste water flow gear; when the current waste water flow gear is not the minimum gear, reduce the waste water flow stalls.
The method according to claim 11, characterized in that the water quality operating parameters include clean water flow.
The method according to claim 16, characterized in that, the water quality operating parameters also include water temperature; said determining the estimated total water purification capacity of the water purifier according to the water quality operating parameters includes:

According to the purified water flow rate, the water temperature and the preset temperature correction coefficient, the cumulative total purified water volume and the corrected purified water flow rate are calculated;

calculating and obtaining an attenuation coefficient based on the at least two groups of accumulated total water purification volumes and corrected water purification flow;

According to the attenuation coefficient, the cumulative total clean water volume, the corrected clean water flow rate and the preset nominal clean water flow rate, the estimated total clean water volume is calculated.
A computer-readable storage medium, on which a computer program is stored, wherein, when the computer program is executed by a processor, the steps of the method according to any one of claims 11 to 17 are realized.
A computer program product, comprising a computer program, characterized in that, when the computer program is executed by a processor, the steps of the method described in any one of claims 11 to 17 are implemented.