CN113979493B - Flushing control method and device of water purifying equipment, electronic equipment and water purifying equipment - Google Patents
Flushing control method and device of water purifying equipment, electronic equipment and water purifying equipment Download PDFInfo
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- CN113979493B CN113979493B CN202111493001.0A CN202111493001A CN113979493B CN 113979493 B CN113979493 B CN 113979493B CN 202111493001 A CN202111493001 A CN 202111493001A CN 113979493 B CN113979493 B CN 113979493B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 1507
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 414
- 238000000034 method Methods 0.000 title claims abstract description 56
- 239000008213 purified water Substances 0.000 claims abstract description 433
- 238000000746 purification Methods 0.000 claims abstract description 104
- 230000008569 process Effects 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims description 75
- 239000002351 wastewater Substances 0.000 claims description 50
- 230000008859 change Effects 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 31
- 238000004364 calculation method Methods 0.000 claims description 28
- 238000012937 correction Methods 0.000 claims description 27
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- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 19
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- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 238000001914 filtration Methods 0.000 description 12
- 238000011045 prefiltration Methods 0.000 description 9
- 238000001223 reverse osmosis Methods 0.000 description 9
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/608—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by temperature measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
- C02F2209/006—Processes using a programmable logic controller [PLC] comprising a software program or a logic diagram
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
- C02F2209/445—Filter life
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
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Abstract
The application relates to a flushing control method and device of water purification equipment, electronic equipment and the water purification equipment. The method comprises the following steps: in the working process of the water purifying equipment, obtaining the purified water flow of the purified water filter element of the water purifying equipment; calculating and determining the predicted total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; according to the predicted total water purifying amount and the preset total water purifying amount threshold value of the pure water filter element, adjusting flushing logic for flushing the pure water filter element, and determining flushing logic after adjustment; and controlling the water purifying equipment to flush the pure water filter element according to the flushing logic after adjustment. By adopting the method of the embodiment of the application, the water purifying equipment can automatically adjust the flushing logic for flushing the pure water filter element, so that the flushing logic is suitable for the real-time blocking condition of the pure water filter element, the flushing effect of the pure water filter element is improved, the water can be saved, and the service life of the pure water filter element is effectively prolonged.
Description
Technical Field
The application relates to the technical field of water purifying equipment, in particular to a flushing control method and device of water purifying equipment, electronic equipment, a storage medium and the water purifying equipment.
Background
With the continuous development of water purification technology, water purification equipment capable of effectively removing various pollutants in tap water is developed. The water purifying equipment is provided with a multi-stage filter element, comprising a front filter element, a reverse osmosis filter element, a rear filter element and the like. In order to effectively prolong the service life of the filter element, currently, a water purifying device is generally provided with a fixed flushing program, and the flushing frequency and the flushing duration in the fixed flushing program are generally set according to the water purifying duration or the water purifying amount of the filter element, for example, the flushing time is set to be 30 seconds every 10 minutes of water purifying or the flushing time is set to be 30 seconds every 20 liters of water purifying.
However, the water quality difference of all regions of the country is large, the water purifying equipment provided with the fixed flushing program may cause the filter core to be blocked faster due to insufficient flushing frequency and flushing time in the region with poor water quality, and the flushing water may be wasted due to excessive flushing frequency and flushing time in the region with good water quality.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a water purification apparatus flushing control method, apparatus, electronic device, storage medium, and water purification apparatus capable of automatically adjusting a flushing program of the water purification apparatus.
A flush control method of a water purification apparatus, the method comprising:
In the working process of the water purifying equipment, obtaining the purified water flow of a purified water filter element of the water purifying equipment;
calculating and determining the predicted total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow;
according to the predicted total water purifying amount and a preset total water purifying amount threshold value of the pure water filter element, adjusting flushing logic for flushing the pure water filter element, and determining flushing logic after adjustment;
and controlling the water purifying equipment to flush the pure water filter element according to the adjusted flushing logic.
In one embodiment, after the obtaining the purified water flow rate of the purified water filter element of the water purifying apparatus, before calculating and determining the estimated total purified water amount of the purified water filter element based on the purified water flow rate and the total purified water amount corresponding to the purified water flow rate, the method further includes:
acquiring the water temperature in the water purifying equipment;
and correcting the obtained purified water flow according to the temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow.
In one embodiment, the corrected flow rate of purified water is a product of the flow rate of purified water and the temperature correction coefficient corresponding to the water temperature.
In one embodiment, the calculating to determine the estimated total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow includes:
determining a change coefficient corresponding to the purified water flow based on the purified water flow and the total purified water quantity corresponding to the purified water flow;
and calculating and determining the expected total water purifying quantity of the pure water filter element according to the change coefficient, the pure water flow and the corresponding total water purifying quantity.
In one embodiment, the determining the change coefficient corresponding to the purified water flow based on the purified water flow and the total purified water amount corresponding to the purified water flow includes:
determining each total purified water amount corresponding to each purified water flow based on each purified water flow;
respectively calculating the average purified water flow corresponding to each purified water flow and the average total purified water quantity corresponding to each total purified water quantity;
determining a purified water flow difference between each of the purified water flows and the average purified water flow, and a total purified water amount difference between each of the total purified water amounts and the average total purified water amount;
and determining a change coefficient corresponding to the purified water flow according to the purified water flow difference and the total purified water flow difference.
In one embodiment, the change coefficient corresponding to the purified water flow is a ratio of a product of the purified water flow difference and the total purified water volume difference to a sum of squares of the total purified water volume difference.
In one embodiment, the predicted total purified water amount of the purified water filter element is a sum of a ratio of a difference between the purified water flow rate and a preset purified water flow rate minimum value of the purified water filter element and the change coefficient, and a total purified water amount corresponding to the purified water flow rate.
In one embodiment, the adjusting the flushing logic for flushing the pure water filter element according to the predicted total water purifying amount and the preset total water purifying amount threshold value of the pure water filter element, and determining the adjusted flushing logic includes:
comparing the predicted total water purifying amount with a preset total water purifying amount threshold of the pure water filter element, wherein the preset total water purifying amount threshold comprises a preset total water purifying amount minimum value and a preset total water purifying amount maximum value;
if the predicted total purified water volume is less than the preset total purified water volume minimum, determining a first flushing logic as the adjusted flushing logic for flushing the purified water filter element, wherein a flushing parameter in the first flushing logic comprises at least one of a first flushing time period, a first interval purified water volume, a first flushing pump voltage, a first flushing pump rotating speed and a first backwater time period, the first flushing time period is longer than an initial flushing time period in preset flushing logic of the purified water filter element, and/or the first interval purified water volume is smaller than an initial interval purified water volume in the preset flushing logic, and/or the first flushing pump voltage is larger than an initial flushing pump voltage in the preset flushing logic, and/or the first flushing pump rotating speed is larger than an initial flushing pump rotating speed in the preset flushing logic, and/or the first backwater time period is longer than an initial flushing time period in the preset flushing logic;
And if the predicted total water purifying amount is greater than the preset total water purifying amount maximum value, determining a second flushing logic as the adjusted flushing logic for flushing the pure water filter element, wherein flushing parameters in the second flushing logic comprise at least one of a second flushing time period, a second interval water purifying amount, a second flushing pump voltage, a second flushing pump rotating speed and a second flushing time period, the second flushing time period is smaller than the initial flushing time period, and/or the second interval water purifying amount is greater than the initial interval water purifying amount, and/or the second flushing pump voltage is smaller than the initial flushing pump voltage, and/or the second flushing pump rotating speed is smaller than the initial flushing pump rotating speed, and/or the second backwater time period is smaller than the initial backwater time period.
A flush control device of a water purification apparatus, the device comprising:
the water purifying device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the water purifying flow of a pure water filter element of the water purifying device in the working process of the water purifying device;
the calculation module is used for calculating and determining the expected total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow;
the adjusting module is used for adjusting the flushing logic for flushing the pure water filter element according to the predicted total water purifying amount and the preset total water purifying amount threshold of the pure water filter element, and determining the flushing logic after adjustment;
And the control module is used for controlling the water purifying equipment to flush the pure water filter element according to the adjusted flushing logic.
An electronic device comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the flushing control method of the water purifying device when executing the computer program.
A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the flushing control method of a water purification apparatus described above.
A water purification apparatus, the water purification apparatus comprising: the device comprises a pure water filter element, a detection assembly, a flushing adjusting assembly and a controller;
the detection component is in communication connection with the controller, and the flushing regulation component is in communication connection with the controller; in the working process of the water purifying equipment, the detection component collects the purified water flow of the purified water filter element and transmits the collected purified water flow to the controller;
the controller obtains the purified water flow; calculating and determining the predicted total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; according to the predicted total water purifying amount and a preset total water purifying amount threshold value of the pure water filter element, adjusting flushing logic for flushing the pure water filter element, and determining flushing logic after adjustment; and controlling the flushing adjusting assembly of the water purifying equipment to flush the pure water filter element according to the flushing logic after adjustment.
In one embodiment, the detection assembly comprises: a flow rate detecting member;
the flow detection part collects the purified water flow and transmits the collected purified water flow to the controller.
In one embodiment, the flow sensing member includes: a flow sensor.
In one embodiment, the detection assembly further comprises: a temperature detecting member;
the temperature detection part is used for collecting the water temperature in the water purifying equipment and transmitting the collected water temperature to the controller;
and the controller corrects the obtained purified water flow according to the temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow.
In one embodiment, the controller determines a first flushing logic as a flushing logic of the flushing adjustment assembly when the predicted total purified water volume is less than a preset total purified water volume minimum value of the purified water cartridge, wherein the flushing parameter in the first flushing logic comprises at least one of a first flushing time period, a first interval purified water volume, a first flushing pump voltage, a first flushing pump rotational speed, and a first backwater time period, the first flushing time period is greater than an initial flushing time period in the preset flushing logic of the purified water cartridge, and/or the first interval purified water volume is less than an initial interval purified water volume in the preset flushing logic, and/or the first flushing pump voltage is greater than an initial flushing pump voltage in the preset flushing logic, and/or the first flushing pump rotational speed is greater than an initial flushing pump rotational speed in the preset flushing logic, and/or the first backwater time period is greater than an initial backwater time period in the preset flushing logic.
In one embodiment, the controller determines a second flushing logic as a flushing logic of the flushing adjustment assembly when the predicted total purified water amount is greater than a preset total purified water amount maximum value of the purified water filter cartridge, wherein a flushing parameter in the second flushing logic includes at least one of a second flushing duration, a second interval purified water amount, a second flushing pump voltage, a second flushing pump rotational speed, and a second return water duration, the second flushing duration is less than the initial flushing duration, and/or the second interval purified water amount is greater than the initial interval purified water amount, and/or the second flushing pump voltage is less than the initial flushing pump voltage, and/or the second flushing pump rotational speed is less than the initial flushing pump rotational speed, and/or the second return water duration is less than the initial return water duration.
In one embodiment, the flush adjustment assembly comprises: the water pump is arranged on the water inlet branch of the pure water filter element, and the waste water valve is arranged on the waste water branch of the pure water filter element.
In one embodiment, the flush adjustment assembly comprises: the water pump on the water inlet branch of the pure water filter element, the waste water valve on the waste water branch of the pure water filter element, the backwater branch communicated with the water inlet branch and the water producing branch of the pure water filter element, and the backwater valve on the backwater branch.
In one embodiment, the water purifying apparatus further includes: a water inlet branch, the water producing branch and the wastewater branch;
the water inlet branch, the water producing branch and the wastewater branch are communicated with the pure water filter element; the water of the water inlet branch flows into the pure water filter element, and flows to the water producing branch after the pure water filter element performs filtering treatment; the water of the water inlet branch flows into the pure water filter element, and flows to the waste water branch after flushing the pure water filter element.
In one embodiment, the water purifying apparatus further includes: the water return branch is communicated with the water inlet branch and the water producing branch;
the water of the water inlet branch flows into the pure water filter element, and flows into the water return branch after the pure water filter element performs filtering treatment; the water of the backwater branch flows into the pure water filter element, and flows to the waste water branch after flushing the pure water filter element.
According to the flushing control method and device of the water purifying equipment, the electronic equipment and the water purifying equipment, the water purifying flow of the pure water filter element of the water purifying equipment is obtained in the working process of the water purifying equipment; calculating and determining the predicted total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; according to the predicted total water purifying amount and the preset total water purifying amount threshold value of the pure water filter element, adjusting flushing logic for flushing the pure water filter element, and determining flushing logic after adjustment; and controlling the water purifying equipment to flush the pure water filter element according to the flushing logic after adjustment. By adopting the method of the embodiment, the water purifying flow of the water purifying device can reflect the real-time blocking condition of the water purifying filter element, the predicted total water purifying amount of the water purifying filter element is determined through the water purifying flow calculation and is compared with the preset total water purifying amount threshold value, the water purifying device can automatically adjust the flushing logic for flushing the water purifying filter element, the flushing logic can be adapted to the real-time blocking condition of the water purifying filter element, the flushing effect of the water purifying filter element is improved, the water is saved, and the service life of the water purifying filter element is effectively prolonged.
Drawings
FIG. 1 is an application environment diagram of a method of controlling flushing of a water purification apparatus in one embodiment;
FIG. 2 is a flow chart of a method of controlling flushing of a water purification apparatus according to one embodiment;
FIG. 3 is a schematic block diagram of a water purifying apparatus according to an embodiment;
FIG. 4 is a schematic block diagram of a water purifying apparatus according to another embodiment;
FIG. 5 is a schematic diagram of a water purifying apparatus according to an embodiment;
FIG. 6 is a schematic diagram of a water purifying apparatus according to another embodiment;
FIG. 7 is a block diagram showing the structure of a flushing control device of the water purifying apparatus in one embodiment;
fig. 8 is an internal structural diagram of an electronic device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
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 in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like, as indicated by the azimuth or positional relationship shown based on the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular azimuth, be configured and operated in a particular azimuth, and therefore, should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
A first feature "on" or "under" a second feature may be the first and second features directly contacting each other, or the first and second features may be indirectly contacting each other through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
In one embodiment, the application environment of the flushing control method of the water purifying device provided in the present application may relate to both the water purifying device 102 and the external control device 104, as shown in fig. 1. Wherein, the water purification apparatus 102 is provided with a pure water cartridge 300, and the water purification apparatus 102 communicates with the external control apparatus 104 through a network. Specifically, the external control device 104 obtains the purified water flow of the purified water filter 300 of the water purifying device during the working process of the water purifying device 102; based on the purified water flow rate and the total purified water amount corresponding to the purified water flow rate, calculating and determining the estimated total purified water amount of the purified water filter 300; according to the predicted total water purifying amount and the preset total water purifying amount threshold of the pure water filter 300, adjusting the flushing logic for flushing the pure water filter 300, and determining the flushing logic after adjustment; the external control device 104 transmits a flushing control instruction to the water purification device 102 to control the water purification device 102 to flush the pure water cartridge 300 according to the adjusted flushing logic.
In one embodiment, the application environment may only relate to the water purifying device 102 in the flushing control method of the water purifying device provided in the present application. Wherein, the water purification apparatus 102 is provided with a pure water filter 300 and a controller, and the controller can realize processing and control functions. Specifically, the controller obtains the purified water flow of the purified water filter 300 of the water purifying device during the working process of the water purifying device 102; based on the purified water flow rate and the total purified water amount corresponding to the purified water flow rate, calculating and determining the estimated total purified water amount of the purified water filter 300; according to the predicted total water purifying amount and the preset total water purifying amount threshold of the pure water filter 300, adjusting the flushing logic for flushing the pure water filter 300, determining the adjusted flushing logic, and controlling the water purifying device 102 to flush the pure water filter 300 according to the adjusted flushing logic.
The water purifying apparatus 102 may be a household water purifying apparatus, such as a front-end water purifier, a reverse osmosis water purifier, a water softener, an ultrafilter, etc., or an industrial water purifying apparatus. The controller in the water purifying apparatus 102 may be an electronic apparatus, a control circuit board, a control chip, and the like. The external control device 104 includes, but is not limited to, a terminal, which may be a smart phone, a tablet computer, a portable wearable device, etc., and a server, which may be implemented as a stand-alone server or a server cluster composed of a plurality of servers.
In one embodiment, as shown in fig. 2, a method for controlling flushing of a water purifying apparatus is provided, which is described by taking a controller in the water purifying apparatus 102 in fig. 1 as an example, and includes:
step S202, obtaining the purified water flow of the purified water filter element of the water purifying equipment in the working process of the water purifying equipment.
In one embodiment, the water purifying device can remove various impurities in tap water, which can also be called raw water, and is provided with a multi-stage filter element, which is classified according to the purpose of the filter element and mainly comprises a front filter element, a pure water filter element and a rear filter element. The preposed filter core is mainly used for removing impurities such as sediment, rust, suspended matters, large particles and the like in tap water. The front filter element can be any one or the combination of a plurality of PP cotton, activated carbon, an ultrafiltration membrane and a ceramic filter element. The pure water filter element and the rear filter element are mainly used for further removing soluble metal salts, organic matters, bacteria, colloid particles, heating substances and the like in the pure water. The pure water filter element mainly refers to a reverse osmosis membrane filter element, and in addition, the pure water filter element can also be a nanofiltration membrane or a microfiltration membrane filter element and the like. The rear filter element can be any one or more of active carbon, an ultrafiltration membrane and a carbon composite filter element.
In one embodiment, during the operation of the water purification apparatus, the filter element is inevitably blocked due to impurities in tap water, so that the filter element needs to be washed to prolong the service life of the filter element. When the filter element is washed, the front filter element is washed, or the pure water filter element is washed, or the rear filter element is washed. In the embodiments of the present application, the pure water filter element is mainly used as an example for washing.
Specifically, in the working process of the water purifying device, the water purifying flow of the water purifying filter element of the water purifying device is obtained. The water purification flow rate refers to the water passing amount per unit time of the water purification filter element, specifically refers to the water production flow rate of the water produced by the water purification filter element, and is expressed as QA (water treatment) in liters per minute (L/min) i Where i represents the number of detections. As the pure water filter element is continuously blocked, the pure water flow rate of the pure water filter element is theoretically continuously reduced, so that the pure water flow rate can reflect the real-time blocking degree of the pure water filter element, and the pure water filter element is washed according to the real-time blocking degree.
In one embodiment, the water purification apparatus is provided with a detection assembly comprising a flow detection member to collect the purified water flow of the purified water cartridge of the water purification apparatus. The flow detecting member may be at least one flow sensor, at least one flowmeter, or the like. The detection component can be arranged on a water producing branch of the pure water filter element, and the water producing branch refers to a water path of the pure water filter element from which water treated by the pure water filter element flows out, so that the real-time blocking condition of the pure water filter element can be reflected by the pure water flow collected by the detection component.
Specifically, the detection component is in communication connection with the controller, namely the flow detection piece is in communication connection with the controller, and after the detection component collects the purified water flow of the purified water filter element, the purified water flow is sent to the controller, and the controller performs subsequent calculation processing. The detection component may be configured to directly collect the purified water flow and send the purified water flow to the controller, for example, the flow sensor directly collects the purified water flow and sends the purified water flow to the controller. The detection component can also acquire and acquire pulse signals, the pulse signals are sent to the controller, and after the controller receives the pulse signals, the controller calculates and determines purified water flow corresponding to the pulse signals according to factory setting parameters of the detection component.
The factory setting parameters of the detection assembly can be the water passing amount in unit time corresponding to the unit pulse, and can be specifically determined according to the type and the model of the detection assembly. For example, the factory setting parameter of the flow sensor is that the water consumption per unit time corresponding to the unit pulse is 0.15L, if the number of pulse signals acquired by the flow sensor is 20, the controller calculates and determines that the purified water flow corresponding to the pulse signals is 0.15×20=3 according to the number of the pulse signals, that is, the purified water flow corresponding to the pulse signals is 3L/min. It should be noted that, when the detecting component collects the purified water flow, the detecting component may collect the purified water flow at the same time interval or the same water amount at the same time interval, or may collect the purified water flow at different time intervals or different water amounts at different time intervals, that is, randomly collect the purified water flow, and the specific collecting mode is not limited herein.
In addition, the detection component can also be arranged on a water inlet branch of the pure water filter element, the water inlet branch refers to a waterway of the pure water filter element, water which is not filtered by the pure water filter element flows into the waterway of the pure water filter element, at the moment, the water inlet flow of the pure water filter element is detected by the detection component, the real-time blocking condition of the pure water filter element cannot be directly reflected, and further calculation is needed. Specifically, if the detection component is disposed on the water inlet branch of the pure water filter element, the pure water flow of the pure water filter element is the difference between the water inlet flow and the waste water flow detected by the detection component, wherein the waste water flow is a known parameter of the water purifying device.
In one embodiment, the temperature difference between regions is large, and the temperature of water can have a certain influence on the working process of the water purifying equipment. For example, if the pure water filter element is a reverse osmosis membrane filter element, the water permeability of the reverse osmosis membrane increases with the increase of the raw water temperature and decreases with the decrease of the raw water temperature, that is, when the water purifying apparatus is operated in a region where the temperature of water is high, the water purifying flow rate thereof increases relatively, and when the water purifying apparatus is operated in a region where the temperature is low, the water purifying flow rate thereof decreases relatively. Therefore, in order to improve the accuracy of the obtained purified water flow rate, it is also necessary to correct the purified water flow rate in degrees celsius (°c) according to the water temperature of the region where the water purifying apparatus is located, expressed as Ti.
Wherein, the standard temperature is set to 25 ℃, and the corrected purified water flow is the purified water flow at the standard temperature. Specifically, after obtaining the purified water flow rate of the purified water filter element of the water purifying device, before calculating and determining the estimated total purified water amount of the purified water filter element based on the purified water flow rate and the total purified water amount corresponding to the purified water flow rate, the method further comprises: acquiring the water temperature in the water purifying equipment; correcting the obtained purified water flow according to a temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow, wherein the corrected purified water flow is expressed as QB i 。
In one embodiment, according to a large number of experiments, a temperature correction coefficient corresponding to the water temperature is preset, and is denoted as K, and is a dimensionless parameter. If the water temperature is higher than the standard temperature, the flow of the purified water is relatively increased, and correction is needed to reduce the flow of the purified water, namely the temperature correction coefficient corresponding to the water temperature is smaller than a preset value. If the water temperature is smaller than the standard temperature, the flow of the purified water is relatively reduced, and correction is needed to increase the flow, namely the temperature correction coefficient corresponding to the water temperature is larger than a preset value. If the water temperature is the same as the standard temperature, the purified water flow does not need to be corrected. The preset value may be determined according to actual technical requirements, and may be set to 1 in one embodiment. That is, when the water temperature is higher than the standard temperature, the temperature correction coefficient corresponding to the water temperature is lower than 1, and when the water temperature is lower than the standard temperature, the temperature correction coefficient corresponding to the water temperature is higher than 1. Specifically, the temperature correction coefficient corresponding to the water temperature is shown in table 1:
Table 1 temperature correction coefficient corresponding to water temperature
| Water temperature Ti | 4℃ | 5℃ | 6℃ | 7℃ | 8℃ | 9℃ | 10℃ |
| K | 2.020 | 1.949 | 1.881 | 1.816 | 1.753 | 1.693 | 1.635 |
| Water temperature Ti | 11℃ | 12℃ | 13℃ | 14℃ | 15℃ | 16℃ | 17℃ |
| K | 1.580 | 1.527 | 1.476 | 1.427 | 1.380 | 1.335 | 1.292 |
| Water temperature Ti | 18℃ | 19℃ | 20℃ | 21℃ | 22℃ | 23℃ | 24℃ |
| K | 1.250 | 1.210 | 1.172 | 1.135 | 1.099 | 1.065 | 1.032 |
| Water temperature Ti | 25℃ | 26℃ | 27℃ | 28℃ | 29℃ | 30℃ | 31℃ |
| K | 1.000 | 0.970 | 0.940 | 0.912 | 0.885 | 0.858 | 0.833 |
| Water temperature Ti | 32℃ | 33℃ | 34℃ | 35℃ | 36℃ | 37℃ | 38℃ |
| K | 0.808 | 0.785 | 0.762 | 0.740 | 0.719 | 0.698 | 0.679 |
| Water temperature Ti | 39℃ | 40℃ | |||||
| K | 0.660 | 0.641 |
Specifically, the calculation formula of the corrected purified water flow is:
QB i ＝QA i *K(T i )
wherein K (T) i ) The temperature correction coefficient corresponding to the water temperature is shown. The corrected purified water flow is the product of the purified water flow and the temperature correction coefficient corresponding to the water temperature. If the flow rate of the purified water is to be corrected, thenThe corrected purified water flow is used in the subsequent calculation process, and if the purified water flow does not need correction, the obtained purified water flow is directly used in the subsequent calculation process.
In one embodiment, the detection assembly of the water purification apparatus further comprises a temperature detection member to collect the water temperature in the water purification apparatus. The temperature detecting member may be at least one temperature sensor, at least one thermometer, or the like. The detection component is in communication connection with the controller, namely the temperature detection component is in communication connection with the controller, and after the detection component collects the water temperature, the water temperature is sent to the controller, and the controller performs subsequent calculation processing.
And S204, calculating and determining the expected total water purifying quantity of the pure water filter element based on the pure water flow and the total water purifying quantity corresponding to the pure water flow.
In one embodiment, the total water purifying amount refers to the accumulated total water amount of water treated by the pure water filter element, and is expressed as L in liters (L) i . Along with the continuous work of the pure water filter element, the total pure water amount of the pure water filter element can be continuously increased, and the total pure water amount of the pure water filter element does not need to be corrected according to the water temperature.
Specifically, the detection component may directly collect the total purified water amount and send the total purified water amount to the controller, for example, the flow sensor directly collects the total purified water amount and sends the total purified water amount to the controller. The detection component can also acquire and acquire an accumulated pulse signal, the accumulated pulse signal is sent to the controller, and the controller calculates and determines the water purification parameter corresponding to the accumulated pulse signal according to the factory setting parameter of the detection component after receiving the accumulated pulse signal.
The factory setting parameters of the detection assembly can be the water passing amount in unit time corresponding to the unit pulse, and can be specifically determined according to the type and the model of the detection assembly. For example, the factory setting parameter of the flow sensor is that the water passing amount per unit time corresponding to the unit pulse is 0.15L, if the number of accumulated pulse signals acquired by the flow sensor is 50000, the controller calculates and determines that the total net water amount corresponding to the accumulated pulse signals is 0.15 x 50000=7500, that is, the total net water amount corresponding to the accumulated pulse signals is 7500L according to the number of the accumulated pulse signals.
In one embodiment, the predicted total purified water amount of the pure water cartridge refers to a calculated predicted total purified water amount in liters (L), denoted as E, in real-time clogging of the pure water cartridge, which is capable of reflecting the real-time water purification capacity of the pure water cartridge.
Specifically, based on the purified water flow rate and the total purified water amount corresponding to the purified water flow rate, calculating and determining the estimated total purified water amount of the purified water filter element comprises the following steps: determining a change coefficient corresponding to the purified water flow based on the purified water flow and the total purified water amount corresponding to the purified water flow; and calculating and determining the expected total water purifying quantity of the pure water filter element according to the change coefficient, the pure water flow and the corresponding total water purifying quantity.
The change coefficient corresponding to the purified water flow is an attenuation coefficient, namely the attenuation coefficient of the purified water flow relative to the total purified water amount, the unit is per minute (/ min), b is expressed as b and is used for expressing the attenuation speed of the purified water flow of the purified water filter element, the numerical value is generally a negative number, and the larger the absolute value is, the faster the purified water flow of the purified water filter element is attenuated.
In one embodiment, the calculation method of the change coefficient corresponding to the purified water flow includes: determining the total purified water amount corresponding to each purified water flow based on each purified water flow; respectively calculating the average purified water flow corresponding to each purified water flow and the average total purified water quantity corresponding to each total purified water quantity; determining a water purification flow difference value between each water purification flow and the average water purification flow and a total water purification amount difference value between each total water purification amount and the average total water purification amount; and determining a change coefficient corresponding to the purified water flow according to the difference value of the purified water flow and the difference value of the total purified water flow. The purified water flow rate in the following formula is exemplified by the corrected purified water flow rate.
Specifically, according to each purified water flow QB i Determining the total water purifying amount L corresponding to the water purifying flow i . Calculate the flow QB of each purified water i Corresponding average purified water flowAnd each total water purifying amount L i Corresponding average totalPurified water amount->The calculation formulas are respectively as follows:
determining a change coefficient corresponding to the flow of the purified water, which is denoted as b i The calculation formula is as follows:
specifically, the change coefficient corresponding to the purified water flow is the ratio of the product of the purified water flow difference and the total purified water flow difference to the sum of squares of the total purified water flow difference.
The estimated total water purifying amount E of the pure water filter element is calculated and determined, and the calculation formula is as follows:
and B represents a preset water purifying flow minimum value of the water purifying filter element, and if the water purifying flow of the water purifying filter element is smaller than the preset water purifying flow minimum value, the service life of the water purifying filter element is prolonged, and the water purifying filter element needs to be replaced. Specifically, the predicted total water purifying amount of the pure water filter element is the ratio of the difference between the pure water flow and the preset minimum value of the pure water flow of the pure water filter element to the change coefficient and the sum of the total water purifying amounts corresponding to the pure water flow.
And S206, adjusting flushing logic for flushing the pure water filter element according to the predicted total water purifying amount and the preset total water purifying amount threshold of the pure water filter element, and determining the flushing logic after adjustment.
In one embodiment, the predetermined total water purification threshold is pureThe factory setting parameters of the water filter element can be determined according to the type and model of the pure water filter element, and the preset total water purifying amount threshold comprises a preset total water purifying amount maximum value F 2 And a preset total water purifying amount minimum value F 1 . And adjusting the flushing logic for flushing the pure water filter element according to the predicted total water purifying amount and the preset total water purifying amount threshold of the pure water filter element, and determining the flushing logic after adjustment so as to flush the pure water filter element according to the real-time blocking condition of the pure water filter element. Specifically, the predicted total water purification amount is compared to a preset total water purification amount threshold for the pure water cartridge.
If the predicted total purified water amount is smaller than the preset total purified water amount minimum value, namely the real-time blocking condition of the pure water filter element is serious, at the moment, determining a first flushing logic as an adjusted flushing logic for flushing the pure water filter element, wherein flushing parameters in the first flushing logic comprise at least one of a first flushing duration, a first interval purified water amount, a first flushing pump voltage, a first flushing pump rotating speed and a first backwater duration.
The first flushing time is longer than the initial flushing time in preset flushing logic of the pure water filter element, the first interval clean water quantity is smaller than the initial interval clean water quantity in the preset flushing logic, and the interval clean water quantity is the difference value of the total clean water quantity of the pure water filter element between flushing twice. The first flushing pump voltage is larger than the initial flushing pump voltage in the preset flushing logic, the flushing pump voltage refers to the voltage of the water pump on the water inlet branch of the pure water filter element when flushing, the first flushing pump rotating speed is larger than the initial flushing pump rotating speed in the preset flushing logic, the flushing pump rotating speed refers to the rotating speed of the water pump on the water inlet branch of the pure water filter element when flushing, and the first backwater time length is longer than the initial backwater time length in the preset flushing logic.
Specifically, the first flushing time period may be set according to an actual technical requirement, and in one embodiment, the first flushing time period may be set to a time period after the initial flushing time period is increased by a first preset time period, and in one embodiment, the first preset time period may be set according to an actual technical requirement, and in one embodiment, the first flushing time period may be set to 5-10 seconds. The first interval water purifying amount can be set according to actual technical requirements, in one embodiment, the first interval water purifying amount can be set to be an interval water purifying amount after the initial interval water purifying amount is reduced by a first preset water purifying amount, the first preset water purifying amount can be set according to actual technical requirements, in one embodiment, the first interval water purifying amount can be set to be 5L, and in one embodiment, the initial interval water purifying amount can be set to be 20L. The first flushing pump voltage may be set according to actual technical requirements, in one embodiment, the flushing pump voltage after the first preset multiple is increased for the initial flushing pump voltage, and the first preset multiple may be set according to actual technical requirements, and in one embodiment, may be set to 5% -10%. The first rotational speed of the flushing pump may be set according to actual technical requirements, in one embodiment, the rotational speed of the flushing pump after the initial rotational speed of the flushing pump is increased by a first preset percentage, and the first preset percentage may be set according to actual technical requirements, in one embodiment, may be set to 5% -10%. The first water return time length can be set according to actual technical requirements, in one embodiment, the water return time length after the first preset water return time length is added for the initial water return time length, the first preset water return time length can be set according to actual technical requirements, and in one embodiment, the first preset water return time length can be set to 10 seconds.
If the predicted total water purification amount is greater than the preset total water purification amount maximum value, that is, the real-time blocking condition of the pure water filter element is not serious, at the moment, determining a second flushing logic as an adjusted flushing logic for flushing the pure water filter element, wherein the flushing parameters in the second flushing logic comprise at least one of a second flushing duration, a second interval water purification amount, a second flushing pump voltage, a second flushing pump rotating speed and a second backwater duration. The second flushing time is smaller than the initial flushing time, the second interval water purifying amount is larger than the initial interval water purifying amount, the second flushing pump voltage is smaller than the initial flushing pump voltage, the second flushing pump rotating speed is smaller than the initial flushing pump rotating speed, and the second backwater time is smaller than the initial backwater time.
Specifically, the second flushing time period may be set according to an actual technical requirement, and in one embodiment, the initial flushing time period may be set to a time period after the second preset time period is reduced, and the second preset time period may be set according to an actual technical requirement, and in one embodiment, may be set to 5-10 seconds. The second interval water purification amount can be set according to actual technical requirements, in one embodiment, the interval water purification amount after the initial interval water purification amount is increased by a second preset water purification amount can be set according to actual technical requirements, in one embodiment, the second interval water purification amount can be set to 5L, and in one embodiment, the initial interval water purification amount can be set to 20L. The second flushing pump voltage may be set according to actual technical requirements, and in one embodiment, the first flushing pump voltage may be set to a flushing pump voltage after the initial flushing pump voltage is reduced by a second preset multiple, and the second preset multiple may be set according to actual technical requirements, and in one embodiment, the second preset multiple may be set to 5% -10%. The second speed of the flushing pump may be set according to the actual technical requirement, in one embodiment, the first speed of the flushing pump may be set to a speed that is reduced by a second preset percentage, and in one embodiment, the second preset percentage may be set according to the actual technical requirement, and in one embodiment, the second preset percentage may be set to 5% -10%. The second water return time length can be set according to actual technical requirements, in one embodiment, the water return time length after the second preset water return time length is reduced for the initial water return time length, the second preset water return time length can be set according to actual technical requirements, and in one embodiment, the second preset water return time length can be set to 10 seconds.
It should be noted that, the values of the first flushing duration and the second flushing duration, the first interval water purifying amount and the second interval water purifying amount, the first flushing pump voltage and the second flushing pump voltage, the first flushing pump rotation speed and the second flushing pump rotation speed, and the first water returning duration and the second water returning duration may be the same or different, and the specific values are not limited herein.
If the predicted total purified water amount is between the preset total purified water amount minimum value and the preset total purified water amount maximum value, that is, the real-time blocking condition of the pure water filter element is basically consistent with the preset blocking condition of the pure water filter element, at the moment, the flushing logic for flushing the pure water filter element does not need to be adjusted, and the preset flushing logic is used.
And step S208, controlling the water purifying equipment to flush the pure water filter element according to the adjusted flushing logic.
In one embodiment, after determining the flushing logic for flushing the pure water filter element, if it is determined that the flushing condition corresponding to the adjusted flushing logic of the pure water filter element is reached, the water purifying device is controlled to flush the pure water filter element according to the adjusted flushing logic.
The water after the filtering treatment by the pure water filter element can be used for flushing the pure water filter element, or the water after the filtering treatment by the preposed filter element can be used for flushing the pure water filter element, so that the flushing effect of the pure water filter element is improved, and the water purifier is determined according to the structure of the water purifier.
In the flushing control method of the water purifying device, the water purifying flow of the pure water filter element of the water purifying device is obtained in the working process of the water purifying device; calculating and determining the predicted total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; according to the predicted total water purifying amount and the preset total water purifying amount threshold value of the pure water filter element, adjusting flushing logic for flushing the pure water filter element, and determining flushing logic after adjustment; and controlling the water purifying equipment to flush the pure water filter element according to the flushing logic after adjustment. By adopting the method of the embodiment, the water purifying flow of the water purifying device can reflect the real-time blocking condition of the water purifying filter element, the predicted total water purifying amount of the water purifying filter element is determined through the water purifying flow calculation and is compared with the preset total water purifying amount threshold value, the water purifying device can automatically adjust the flushing logic for flushing the water purifying filter element, the flushing logic can be adapted to the real-time blocking condition of the water purifying filter element, the flushing effect of the water purifying filter element is improved, the water is saved, and the service life of the water purifying filter element is effectively prolonged.
It should be understood that, although the steps in the flowcharts described above are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly stated in the present application, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described above may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily sequential, and may be performed in turn or alternately with at least a part of the steps or stages in other steps or other steps.
In one embodiment, as shown in fig. 3, a block diagram of a water purification apparatus is provided. The water purification apparatus includes: the water inlet leg 110, the water producing leg 120, the wastewater leg 130, the pure water cartridge 300, the detection assembly 400, and a controller, which is not shown in fig. 3.
In one embodiment, the pure water cartridge 300 of the water purification apparatus may be used to remove soluble metal salts, organics, bacteria, colloidal particles, heat generating substances, etc. in water. The pure water filter 300 mainly refers to a reverse osmosis membrane filter, and in addition, the pure water filter 300 may also be a nanofiltration membrane or a microfiltration membrane filter. The water inlet branch 110 is a water path through which water which is not filtered by the pure water filter 300 flows into the pure water filter 300, the water outlet branch 120 is a water path through which water which is filtered by the pure water filter 300 flows out of the pure water filter 300, and the wastewater branch 130 is a water path through which wastewater which is washed by the pure water filter 300 flows out of the pure water filter 300. Because the water inlet branch 110, the water producing branch 120 and the wastewater branch 130 are all involved in flowing into or out of the pure water filter 300, the water inlet branch 110, the water producing branch 120 and the wastewater branch 130 are communicated with the pure water filter 300.
In one embodiment, the water purifying apparatus further includes: the water inlet valve is arranged on the water inlet branch 110, the water inlet valve is used for controlling the on-off of the water inlet branch 110, the pure water port is arranged on the water producing branch 120, the pure water port is used for controlling the on-off of the water producing branch 120, the waste water valve is arranged on the waste water branch 130, and the waste water valve is used for controlling the water flow of the waste water branch 130. It should be noted that, the waste water valve belongs to a half-switch valve, and in the closed state, there is still a circulating opening, and water can still flow out of the opening, so the waste water valve is mainly used for controlling the water flow of the waste water branch 130, and not for controlling the on-off of the waste water branch 130.
The water purifying device comprises a water purifying device, a water purifying device and a water outlet, wherein the water purifying device is connected with the water purifying device through a water inlet, and the water outlet is provided with a water purifying tap. The pure water tap can be any one of an electric control tap and a mechanical tap. Specifically, the electric control faucet is in communication connection with the controller, and the electric control faucet can send out an electric signal when being opened. When the electric control faucet is arranged at the pure water port of the water purifying equipment, if the controller detects an electric signal, the electric control faucet is determined to be opened, so that the water purifying equipment is controlled to enter a working state. When the mechanical faucet is arranged at the pure water port of the water purifying device, if the controller detects that the detection component 400 generates a pulse signal, the mechanical faucet is determined to be opened, so that the water purifying device is controlled to enter the working state.
It should be noted that the water inlet valve, the waste water valve and the return valve of the water purifying device may be solenoid valves, including but not limited to hydraulic solenoid valves and pneumatic solenoid valves, and the controller may adjust the water flow in the corresponding branch by controlling the opening of the solenoid valves.
In one embodiment, during the operation of the water purification apparatus, the pure water filter 300 is inevitably blocked, so that the pure water filter 300 needs to be washed to prolong the service life of the pure water filter 300. Specifically, during the operation of the water purification apparatus, the flow rate of purified water of the purified water cartridge 300 of the water purification apparatus is obtained. The water purification flow rate refers to the water passing through the water purification cartridge 300 in unit time, specifically to the water production flow rate of water produced by the water purification cartridge, expressed as QA and expressed in liters per minute (L/min) i Where i represents the number of detections. As the pure water cartridge 300 is continuously blocked, the flow rate of pure water of the pure water cartridge 300 is theoretically continuously reduced, and thus, the flow rate of pure water may reflect the real-time blocking degree of the pure water cartridge 300 so as to flush the pure water cartridge 300 according to the real-time blocking degree.
In one embodiment, the water purifying apparatus is provided with a detection assembly 400, and the detection assembly 400 shown in fig. 3 is disposed on the water producing branch 120 and is in communication connection with the controller. Wherein, the detection component includes flow detection spare to gather the pure water flow after the pure water filter core 300 of water purification unit carries out filtration treatment, transmit the pure water flow who gathers to the controller. The flow detection piece is in communication connection with the controller and is used for collecting the flow of purified water. The flow sensing member may be at least one flow sensor, at least one flow meter, etc.
The detection assembly 400 may directly collect the purified water flow and send the purified water flow to the controller, for example, the flow sensor directly collects the purified water flow and sends the purified water flow to the controller. The detection assembly 400 may also acquire a pulse signal, send the pulse signal to the controller, and after receiving the pulse signal, the controller calculates and determines the purified water flow corresponding to the pulse signal according to the factory setting parameters of the detection assembly 400.
The factory setting parameter of the detection assembly 400 may be a water passing amount per unit time corresponding to the unit pulse, and may be specifically determined according to the type and model of the detection assembly 400. For example, the factory setting parameter of the flow sensor is that the water consumption per unit time corresponding to the unit pulse is 0.15L, if the number of pulse signals acquired by the flow sensor is 20, the controller calculates and determines that the purified water flow corresponding to the pulse signals is 0.15×20=3 according to the number of the pulse signals, that is, the purified water flow corresponding to the pulse signals is 3L/min. It should be noted that, when the detecting component 400 collects the purified water flow, the detecting component may collect the purified water flow at the same time interval or the same water amount at the same time interval, or may collect the purified water flow at different time intervals or different water amounts at different time intervals, that is, randomly collect the purified water flow, and the specific collecting mode is not limited herein.
In addition, the detection assembly 400 may be further disposed on the water inlet branch 110 of the pure water filter 300, and at this time, the flow of the purified water detected by the detection assembly 400 is the flow of the water inlet of the pure water filter 300, which cannot directly reflect the real-time blocking condition of the pure water filter 300, and needs further calculation. Specifically, if the detection assembly 400 is disposed on the water inlet branch 110 of the pure water filter 300, the pure water flow of the pure water filter 300 is the difference between the water inlet flow and the waste water flow detected by the detection assembly 400, where the waste water flow is a known parameter of the water purifying apparatus.
In one embodiment, the temperature difference between regions is large, and the temperature of water can have a certain influence on the working process of the water purifying equipment. For example, if the pure water cartridge 300 is a reverse osmosis membrane cartridge, the water permeability of the reverse osmosis membrane increases with an increase in the raw water temperature and decreases with a decrease in the raw water temperature, that is, the water flow rate of the water purifying apparatus increases relatively when the water purifying apparatus operates in a region where the temperature of water is high and the water flow rate of the water purifying apparatus decreases relatively when the water purifying apparatus operates in a region where the temperature is low. Therefore, in order to improve the accuracy of the obtained purified water flow rate, it is also necessary to correct the purified water flow rate in degrees celsius (°c) according to the water temperature of the region where the water purifying apparatus is located, expressed as Ti.
Wherein, the standard temperature is set to 25 ℃, and the corrected purified water flow is the purified water flow at the standard temperature. Specifically, after obtaining the purified water flow rate of the purified water cartridge 300 of the water purifying apparatus, it further includes: acquiring the water temperature in the water purifying equipment; correcting the obtained purified water flow according to a temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow, wherein the corrected purified water flow is expressed as QB i 。
In one embodiment, the detection assembly 400 of the water purification apparatus further includes a temperature detection member to collect the water temperature in the water purification apparatus. The temperature detecting member may be at least one temperature sensor, at least one thermometer, or the like. The detection assembly 400 is in communication connection with the controller, namely the temperature detection member is in communication connection with the controller, and after the detection assembly 400 collects the water temperature, the water temperature is sent to the controller, and the controller performs subsequent calculation processing. The flow detecting element and the temperature detecting element in the detecting assembly 400 may detect the flow direction of the water in the branch where the detecting assembly 400 is located.
In one embodiment, in order to enable water in the water inlet branch 110 to flow into the pure water filter 300, the water purifying apparatus further includes a water pump disposed on the water inlet branch 110, the water pump being located downstream of the water inlet valve and upstream of the pure water filter 300, the water pump being configured to pressurize the water in the water inlet branch 110. The water pump can be any one of a stable pressure pump or a variable frequency water pump. The controller can adjust the flushing parameters of the pure water filter 300 by controlling the rotation speed or the voltage of the water pump.
In one embodiment, the controller controls the flushing adjustment assembly of the water purification apparatus to flush the pure water cartridge 300 according to the flushing logic. Specifically, a water pump disposed on the water inlet branch 110 of the pure water filter 300 and a waste water valve disposed on the waste water branch 130 of the pure water filter 300 together form a flushing adjusting assembly of the water purifying apparatus shown in fig. 3, and the flushing adjusting assembly is in communication connection with the controller.
Wherein, when the predicted total purified water amount is smaller than the preset total purified water amount minimum value of the pure water filter 300, the controller determines the first flushing logic as the flushing logic of the flushing adjusting assembly, and the flushing parameters in the first flushing logic comprise at least one of a first flushing time period, a first interval purified water amount, a first flushing pump voltage and a first flushing pump rotating speed.
The first flushing time period is longer than the initial flushing time period in the preset flushing logic of the pure water filter 300, the first interval clean water amount is smaller than the initial interval clean water amount in the preset flushing logic, the first flushing pump voltage is larger than the initial flushing pump voltage in the preset flushing logic, and the first flushing pump rotating speed is larger than the initial flushing pump rotating speed in the preset flushing logic.
Wherein, when the predicted total purified water amount is greater than the preset total purified water amount maximum value of the pure water filter 300, the controller determines a second flushing logic as the flushing logic of the flushing adjustment assembly, and the flushing parameters in the second flushing logic comprise at least one of a second flushing time period, a second interval purified water amount, a second flushing pump voltage and a second flushing pump rotating speed.
The second flushing time is smaller than the initial flushing time, the second interval water purifying amount is larger than the initial interval water purifying amount, the second flushing pump voltage is smaller than the initial flushing pump voltage, and the second flushing pump rotating speed is smaller than the initial flushing pump rotating speed.
In one embodiment, the water purifying apparatus further includes: the pre-filter is in communication with the water inlet branch 110 and is disposed upstream of the purified water filter 300. The pre-filter core is mainly used for removing impurities such as sediment, rust, suspended matters, large particles and the like in tap water so as to prolong the service life of the pure water filter core 300. The front filter element can be any one or the combination of a plurality of PP cotton, activated carbon, an ultrafiltration membrane and a ceramic filter element. At this time, the water purifying apparatus further includes a raw water inlet branch, which is communicated with the pre-filter, and flows into the pre-filter, and the pre-filter filters the filtered water to the inlet branch 110. The head end of the raw water inlet branch is also provided with a raw water inlet so that raw water flows into the front filter element through the raw water inlet.
In one embodiment, the water purifying apparatus further includes: the post-filter element is communicated with the water producing branch 120 and is arranged downstream of the pure water filter element 300. The rear filter element can further remove soluble metal salts, organic matters, bacteria, colloid particles, heating substances and the like in water. The rear filter element can be any one or more of active carbon, an ultrafiltration membrane and a carbon composite filter element.
In one embodiment, during the operation of the water purifying apparatus, the water producing branch 120 is in a communication state, the water in the water purifying apparatus flows into the pure water filter 300 from the water inlet branch 110, and after the pure water filter 300 performs the filtration treatment, flows into the water producing branch 120 and flows out from the pure water port at the tail end of the water producing branch 120. When the water purifying device is in a non-working state, i.e. the water purifying device is powered off, the water producing branch 120 is in a disconnected state, the pure water filter 300 can be washed in the non-working state, and the water in the water purifying device flows into the pure water filter 300 from the water inlet branch 110 and then flows out from the waste water branch 130. In this flushing mode, the water in the water inlet branch 110 is used to flush the pure water filter 300, that is, the water filtered by the pre-filter is used to flush the pure water filter 300.
In one embodiment, as shown in fig. 4, there is provided a schematic block diagram of a water purifying apparatus, and the water purifying apparatus shown in fig. 4 further includes, compared to fig. 3: the water return branch 140, wherein the water return branch 140 is communicated with the water inlet branch 110 and the water producing branch 120, and the water return branch 140 refers to a waterway where the flushing water for flushing the pure water filter 300 flows into the pure water filter 300.
In one embodiment, the location of the return water leg 140 in communication with the inlet water leg 110 is between the inlet valve and the water pump to ensure that water from flushing the plain water cartridge 300 can flow into the plain water cartridge 300. The communication position of the backwater branch 140 and the water producing branch 120 is between the detection assembly 400 and the pure water filter 300, so as to avoid the water flowing to the detection assembly 400 when the pure water filter 300 is washed, thereby affecting the detection assembly 400.
In one embodiment, the water purifying apparatus further includes: and a return valve is arranged on the return water branch 140 and is used for controlling the on-off of the return water branch 140. During the operation of the water purification apparatus, the return water branch 140 is in an off state, i.e., the return valve is in a closed state, so that water of the water producing branch 120 can flow out from the pure water port, thereby supplying water to a user. At this time, the water in the water purifying apparatus flows into the pure water filter 300 from the water inlet branch 110, and flows into the water producing branch 120 and flows out from the pure water port at the end of the water producing branch 120 after being filtered by the pure water filter 300.
In one embodiment, when the water purifying apparatus is in a non-working state, i.e. the water purifying apparatus is powered off, the water producing branch 120 is in a disconnected state, and the pure water filter 300 can be flushed in the non-working state. At this time, the water return branch 140 is in a communication state, that is, the return valve 1401 is in an open state, where the return valve 1401 may be synchronously opened at the time when the pure water port 1201 is closed, or may be opened after the pure water port 1201 is closed for a preset period of time, where the preset period of time may be set according to actual technical requirements.
Specifically, when the water return branch 140 is in the communication state, the flow direction of the water in the water purifying apparatus is that if the raw water inlet 1001 is in the closed state, that is, the raw water does not enter, the water in the water return branch 140 flows into the pure water filter 300, washes the pure water filter 300, and flows out from the waste water branch 130 after flowing into the pure water filter 300; if the raw water inlet 1001 is in an open state, that is, raw water continuously flows into the pure water filter 300, the pure water filter 300 flows into the return water branch 140 after filtering, and the return water branch 140 flows into the pure water filter 300 and flows out of the waste water branch 130. In this flushing method, the water after the filtering treatment by the pure water filter 300 is flushed, that is, the pure water filter 300 is always immersed in pure water, so that the flushing effect can be effectively improved.
In one embodiment, the controller controls the flushing adjustment assembly of the water purification apparatus to flush the pure water cartridge 300 according to the flushing logic. Specifically, the water pump disposed on the water inlet branch 110 of the pure water filter 300, the wastewater valve disposed on the wastewater branch 130 of the pure water filter 300, the water return branch 140 communicating with the water inlet branch 110 and the water producing branch 120 of the pure water filter 300, and the reflux valve disposed on the water return branch 140 together constitute a flushing regulation assembly of the water purifying apparatus shown in fig. 4.
Wherein, when the predicted total water purifying amount is smaller than the preset total water purifying amount minimum value of the pure water filter 300, the controller determines the first flushing logic as the flushing logic of the flushing adjusting assembly, and the flushing parameters in the first flushing logic may further include a first water return time period. The first water return time length is longer than the initial water return time length in the preset flushing logic of the pure water filter element 300, and the controller adjusts the first water return time length by controlling the opening time length of the return valve on the water return branch 140.
Wherein, when the predicted total purified water amount is greater than the preset total purified water amount maximum value of the pure water filter cartridge 300, the controller determines the second flushing logic as the flushing logic of the flushing adjustment assembly, and the flushing parameters in the second flushing logic may further include a second backwater duration. The second water return time length is smaller than the initial water return time length in the preset flushing logic of the pure water filter element 300, and the controller adjusts the second water return time length by controlling the opening time length of the return valve on the water return branch 140.
It should be noted that, when the water purifying apparatus is in a non-working state, that is, when the water purifying apparatus is powered off, the waste water valve is in a closed state, but because the waste water valve is a semi-open-close valve, in the closed state, there is still a circulating opening, and water can still flow out of the opening, that is, the waste water branch 130 is still in a communicating state, so when the pure water filter 300 is rinsed, water can flow out of the waste water branch 130 after flowing into the pure water filter 300.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and a specific embodiment. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
In one embodiment, fig. 5 is a schematic structural diagram of a water purifying apparatus. Wherein, the arrow indicates the flow direction of water in the water purification branch road, and water purification unit includes: the apparatus comprises a pre-filter 200, a pure water filter 300, a post-filter 500, a raw water inlet branch 100, a water inlet branch 110, a water producing branch 120, a waste water branch 130, a detection assembly 400 and a controller, which is not shown in fig. 5, wherein the pre-filter 200 is arranged upstream of the pure water filter 300, and the post-filter 500 is arranged downstream of the pure water filter 300; the pure water cartridge 300 includes a reverse osmosis membrane cartridge; the sensing assembly 400 includes a flow sensing element 410 and a temperature sensing element 420, the flow sensing element 410 including a flow sensor and the temperature sensing element 420 including a temperature sensor; a raw water inlet 1001 provided at the raw water inlet branch 100; a water inlet valve 1002 arranged on the water inlet branch 110, wherein the water inlet valve 1002 is used for controlling the on-off of the water inlet branch 110; a pure water port 1201 is arranged on the water producing branch 120, the pure water port 1201 is used for controlling the on-off of the water producing branch 120, a waste water valve 1301 is arranged on the waste water branch 130, and the waste water valve 1301 is used for controlling the water flow of the waste water branch 130; the water pump 1003 is arranged on the water inlet branch 110, the water pump 1003 is positioned at the downstream of the water inlet valve 1002 and at the upstream of the pure water filter 300, the water pump 1003 is used for pressurizing water of the water inlet branch 110, and the water pump 1003 comprises any one of a pressure stabilizing pump or a variable frequency water pump; the front filter element 200 is communicated with the water inlet branch 110, and the rear filter element 500 is communicated with the water producing branch 120;
The water inlet branch 110, the water producing branch 120 and the wastewater branch 130 are communicated with the pure water filter element 300; taking the example that the detection assembly 400 is arranged on the water producing branch 120, the detection assembly 400 is in communication connection with the controller, the flow detection piece 410 in the detection assembly 400 collects the water purifying flow of the pure water filter element 300 in the working process of the water purifying equipment, the water purifying flow is sent to the controller, the temperature detection piece 420 in the detection assembly 400 collects the water temperature in the working process of the water purifying equipment, and the water temperature is sent to the controller;
if the water producing branch 120 is in a communication state, i.e. the pure water port 1201 is in an open state, water can be supplied to a user at this time, specifically, the raw water flows into the front filter element 200 from the raw water inlet branch 100, after being filtered by the front filter element 200, flows into the water inlet branch 110, and the water flows into the pure water filter element 300 from the water inlet branch 110, after being filtered by the pure water filter element 300, flows into the water producing branch 120, and flows out from the pure water port 1201;
if the water producing branch 120 is in a disconnected state, that is, the pure water port 1201 is in a closed state, the pure water filter 300 can be flushed at this time, specifically, the water in the water inlet branch 110 flows into the pure water filter 300, and after the pure water filter 300 performs the filtration treatment, the water directly flows out of the waste water branch 130, and at this time, the pure water filter 300 is flushed with the water after the filtration treatment using the pre-filter 200;
In a specific embodiment, as shown in fig. 6, which is a schematic structural diagram of a water purifying apparatus, compared with the water purifying apparatus shown in fig. 5, the water purifying apparatus shown in fig. 6 further includes a water return branch 140, where the water return branch 140 is communicated with the water inlet branch 110 and the water producing branch 120, the communication position between the water return branch 140 and the water inlet branch 110 is located between the water inlet valve 1002 and the water pump 1003, and the communication position between the water return branch 140 and the water producing branch 120 is located between the detection assembly 400 and the pure water filter 300; the water purification apparatus further includes: a return valve 1401 arranged on the return water branch 140, wherein the return valve 1401 is used for controlling the on-off of the return water branch 140;
if the water producing branch 120 is in a communication state, i.e. the pure water inlet 1201 is in an open state, at this time, the water return branch 140 is in a disconnected state, i.e. the return valve 1401 is in a closed state, and water can be supplied to a user at this time, specifically, the raw water flows into the front filter core 200 from the raw water inlet branch 100, after being filtered by the front filter core 200, flows into the water inlet branch 110, the water flows into the pure water filter core 300 from the water inlet branch 110, after being filtered by the pure water filter core 300, flows into the water producing branch 120 and the return water branch 140, and flows out from the pure water inlet 1201;
if the water producing branch 120 is in a disconnected state, i.e. the pure water port 1201 is in a closed state, and at the same time the water return branch is in a connected state, i.e. the return valve 1401 is in an open state, wherein the return valve 1401 can be synchronously opened at the moment when the pure water port 1201 is closed, or can be opened after the pure water port 1201 is closed for a preset period of time, the preset period of time can be set according to actual technical requirements, and at the moment, the pure water filter 300 can be flushed, specifically, if the raw water inlet 1001 is in a closed state, i.e. raw water does not enter water, and after the water in the water return branch 140 flows into the pure water filter 300, the pure water flows out from the waste water branch 130; if the raw water inlet 1001 is in an open state, that is, raw water continuously flows into the pure water filter 300, the pure water filter 300 flows into the return water branch 140 after the pure water filter 300 performs filtering treatment, and the water in the return water branch 140 flows into the pure water filter 300 and then flows out of the waste water branch 130, and at this time, the pure water filter 300 is rinsed with the water after the filtering treatment by using the pure water filter 300.
In a specific embodiment, taking the pure water filter 300 as an example, the specific steps of the washing control method of the water purifying device are as follows:
in the operation process of the water purifying device, the controller obtains the purified water flow QA of the purified water filter element 300 collected by the detection component 400 i And water temperature Ti; according to the purified water flow QA i Correcting the obtained purified water flow by a temperature correction coefficient K corresponding to the water temperature Ti to obtain corrected purified water flow QB i ；
The calculation formula of the corrected purified water flow is as follows:
QB i ＝QA i *K(T i )
wherein K (T) i ) A temperature correction coefficient corresponding to the water temperature is represented;
according to the water purifying flow QB i Determining the total water purifying amount L corresponding to the water purifying flow i Calculate the flow QB of each purified water i Corresponding average purified water flowAnd each total water purifying amount L i Corresponding average total net water>The calculation formulas are respectively as follows:
determining a change coefficient corresponding to the flow of the purified water, which is denoted as b i The calculation formula is as follows:
the estimated total purified water amount E of the purified water filter 300 is calculated and determined, and the calculation formula is as follows:
wherein B represents a preset minimum value of the purified water flow rate of the purified water cartridge 300;
the controller compares the predicted total purified water amount E with a preset total purified water amount maximum value F of the pure water cartridge 300 2 And a preset total water purifying amount minimum value F 1 ；
If the predicted total purified water amount is smaller than the preset total purified water amount minimum value, that is, the real-time blocking condition of the pure water filter 300 is serious, at this time, determining a first flushing logic as an adjusted flushing logic for flushing the pure water filter 300, wherein flushing parameters in the first flushing logic include at least one of a first flushing time period, a first interval purified water amount, a first flushing pump voltage, a first flushing pump rotating speed and a first backwater time period, the first flushing time period is longer than an initial flushing time period in the preset flushing logic of the pure water filter 300, the first interval purified water amount is smaller than the initial interval purified water amount in the preset flushing logic, the first flushing pump voltage is greater than the initial flushing pump voltage in the preset flushing logic, the first flushing pump rotating speed is greater than the initial flushing pump rotating speed in the preset flushing logic, and the first backwater time period is longer than the initial backwater time period in the preset flushing logic;
If the predicted total water purifying amount is greater than the preset maximum total water purifying amount, that is, the real-time blocking condition of the pure water filter 300 is not serious, determining a second flushing logic as a flushing logic after the pure water filter 300 is flushed after adjustment, wherein flushing parameters in the second flushing logic comprise at least one of a second flushing time length, a second interval water purifying amount, a second flushing pump voltage, a second flushing pump rotating speed and a second water return time length, the second flushing time length is smaller than the initial flushing time length, the second interval water purifying amount is greater than the initial interval water purifying amount, the second flushing pump voltage is smaller than the initial flushing pump voltage, the second flushing pump rotating speed is smaller than the initial flushing pump rotating speed, and the second water return time length is smaller than the initial water return time length;
the water purifying device is controlled to flush the pure water filter 300 according to the adjusted flushing logic.
In one embodiment, as shown in fig. 7, there is provided a flushing control device of a water purifying apparatus, including: an acquisition module 710, a calculation module 720, an adjustment module 730, and a control module 740, wherein:
and the acquisition module 710 is used for acquiring the purified water flow of the purified water filter element of the water purification device in the working process of the water purification device.
And the calculating module 720 is configured to calculate and determine an expected total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow.
And the adjusting module 730 is configured to adjust a flushing logic for flushing the pure water filter element according to the predicted total water purifying amount and the preset total water purifying amount threshold of the pure water filter element, and determine the adjusted flushing logic.
And the control module 740 is used for controlling the water purifying equipment to flush the pure water filter element according to the adjusted flushing logic.
In one embodiment, the flushing control device of the water purifying apparatus further includes:
the water purification flow correction unit is used for acquiring the water temperature in the water purification equipment; and correcting the obtained purified water flow according to the temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow.
In one embodiment, the corrected flow rate of purified water is a product of the flow rate of purified water and the temperature correction coefficient corresponding to the water temperature.
In one embodiment, the computing module 720 includes:
and the change coefficient calculation unit is used for determining the change coefficient corresponding to the purified water flow based on the purified water flow and the total purified water quantity corresponding to the purified water flow.
And the estimated total purified water amount calculating unit is used for calculating and determining the estimated total purified water amount of the purified water filter element according to the change coefficient, the purified water flow and the corresponding total purified water amount.
In one embodiment, the change coefficient calculation unit includes:
and a total purified water amount determining unit for determining each total purified water amount corresponding to each purified water flow amount based on each purified water flow amount.
And the average value calculation unit is used for calculating the average purified water flow corresponding to each purified water flow and the average total purified water quantity corresponding to each total purified water quantity respectively.
And a difference determining unit configured to determine a water purification flow rate difference between each of the water purification flow rates and the average water purification flow rate, and a total water purification amount difference between each of the total water purification amounts and the average total water purification amount.
And the change coefficient determining unit is used for determining a change coefficient corresponding to the purified water flow according to the purified water flow difference value and the total purified water flow difference value.
In one embodiment, the change coefficient corresponding to the purified water flow is a ratio of a product of the purified water flow difference and the total purified water volume difference to a sum of squares of the total purified water volume difference.
In one embodiment, the predicted total purified water amount of the purified water filter element is a sum of a ratio of a difference between the purified water flow rate and a preset purified water flow rate minimum value of the purified water filter element and the change coefficient, and a total purified water amount corresponding to the purified water flow rate.
In one embodiment, the adjusting module 730 includes:
the comparison unit is used for comparing the predicted total water purifying amount with a preset total water purifying amount threshold of the pure water filter element, and the preset total water purifying amount threshold comprises a preset total water purifying amount minimum value and a preset total water purifying amount maximum value.
And the first adjusting unit is used for determining a first flushing logic as the adjusted flushing logic for flushing the pure water filter element when the predicted total purified water amount is smaller than the preset total purified water amount minimum value, wherein the flushing parameters in the first flushing logic comprise at least one of a first flushing time length, a first interval purified water amount, a first flushing pump voltage, a first flushing pump rotating speed and a first backwater time length, the first flushing time length is larger than the initial flushing time length in the preset flushing logic of the pure water filter element, and/or the first interval purified water amount is smaller than the initial interval purified water amount in the preset flushing logic, and/or the first flushing pump voltage is larger than the initial flushing pump voltage in the preset flushing logic, and/or the first flushing pump rotating speed is larger than the initial flushing pump rotating speed in the preset flushing logic, and/or the first backwater time length is larger than the initial backwater time length in the preset flushing logic.
And a second adjusting unit, configured to determine a second flushing logic as the adjusted flushing logic for flushing the pure water filter element when the predicted total purified water amount is greater than the preset total purified water amount maximum value, where a flushing parameter in the second flushing logic includes at least one of a second flushing duration, a second interval purified water amount, a second flushing pump voltage, a second flushing pump rotational speed, and a second backwater duration, the second flushing duration is less than the initial flushing duration, and/or the second interval purified water amount is greater than the initial interval purified water amount, and/or the second flushing pump voltage is less than the initial flushing pump voltage, and/or the second flushing pump rotational speed is less than the initial flushing pump rotational speed, and/or the second backwater duration is less than the initial backwater duration.
The specific limitation regarding the flushing control device of the water purification apparatus may be referred to as the limitation of the flushing control method of the water purification apparatus hereinabove, and will not be repeated herein. The above-described respective modules in the flushing control device of the water purifying apparatus may be realized in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or independent of a processor in the electronic device, or may be stored in software in a memory in the electronic device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, an electronic device is provided, the internal structure of which may be as shown in fig. 8. The electronic device includes a processor, a memory, and a communication interface connected by a system bus. The memory of the electronic device includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the electronic device is used for conducting wired or wireless communication with an external control device, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program, when executed by a processor, implements a flush control method of a water purification apparatus.
In one embodiment, the electronic device further comprises a display screen and an input means. The display screen of the electronic device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic device can be a touch layer covered on the display screen, or can be a key, a track ball, a touch pad or the like arranged on the shell of the electronic device.
It will be appreciated by those skilled in the art that the structure shown in fig. 8 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the electronic device to which the present application is applied, and that a particular electronic device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, an electronic device is provided, including a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the flushing control method of the water purifying device when the computer program is executed.
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 flushing control method of a water purification apparatus described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in 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, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (12)
1. A flush control method of a water purification apparatus, the method comprising:
in the working process of the water purifying equipment, obtaining the purified water flow of a purified water filter element of the water purifying equipment;
acquiring the water temperature in the water purifying equipment;
correcting the obtained purified water flow according to the temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow;
Calculating and determining the predicted total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; the estimated total purified water amount is calculated and obtained under the condition of real-time blockage of the pure water filter element and is used for reflecting the real-time water purifying capacity of the pure water filter element;
according to the predicted total water purifying amount and a preset total water purifying amount threshold value of the pure water filter element, adjusting flushing logic for flushing the pure water filter element, and determining flushing logic after adjustment;
controlling the water purifying equipment to flush the pure water filter element according to the adjusted flushing logic;
the calculating and determining the estimated total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow comprises the following steps: determining each total purified water amount corresponding to each purified water flow based on each purified water flow; respectively calculating the average purified water flow corresponding to each purified water flow and the average total purified water quantity corresponding to each total purified water quantity; determining a purified water flow difference between each of the purified water flows and the average purified water flow, and a total purified water amount difference between each of the total purified water amounts and the average total purified water amount; determining a change coefficient corresponding to the purified water flow according to the purified water flow difference and the total purified water flow difference; and calculating and determining the expected total water purifying quantity of the pure water filter element according to the change coefficient, the pure water flow and the corresponding total water purifying quantity.
2. The method according to claim 1, wherein the adjusting the flushing logic for flushing the pure water cartridge according to the predicted total water amount and a preset total water amount threshold of the pure water cartridge, determining the adjusted flushing logic, includes:
comparing the predicted total water purifying amount with a preset total water purifying amount threshold of the pure water filter element, wherein the preset total water purifying amount threshold comprises a preset total water purifying amount minimum value and a preset total water purifying amount maximum value;
if the predicted total purified water volume is less than the preset total purified water volume minimum, determining a first flushing logic as the adjusted flushing logic for flushing the purified water filter element, wherein a flushing parameter in the first flushing logic comprises at least one of a first flushing time period, a first interval purified water volume, a first flushing pump voltage, a first flushing pump rotating speed and a first backwater time period, the first flushing time period is longer than an initial flushing time period in preset flushing logic of the purified water filter element, and/or the first interval purified water volume is smaller than an initial interval purified water volume in the preset flushing logic, and/or the first flushing pump voltage is larger than an initial flushing pump voltage in the preset flushing logic, and/or the first flushing pump rotating speed is larger than an initial flushing pump rotating speed in the preset flushing logic, and/or the first backwater time period is longer than an initial flushing time period in the preset flushing logic;
And if the predicted total water purifying amount is greater than the preset total water purifying amount maximum value, determining a second flushing logic as the adjusted flushing logic for flushing the pure water filter element, wherein flushing parameters in the second flushing logic comprise at least one of a second flushing time period, a second interval water purifying amount, a second flushing pump voltage, a second flushing pump rotating speed and a second backwater time period, the second flushing time period is smaller than the initial flushing time period, and/or the second interval water purifying amount is greater than the initial interval water purifying amount, and/or the second flushing pump voltage is smaller than the initial flushing pump voltage, and/or the second flushing pump rotating speed is smaller than the initial flushing pump rotating speed, and/or the second backwater time period is smaller than the initial backwater time period.
3. A flush control device of a water purification apparatus, the device comprising:
the water purifying device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the water purifying flow of a pure water filter element of the water purifying device in the working process of the water purifying device;
the water purification flow correction unit is used for acquiring the water temperature in the water purification equipment; correcting the obtained purified water flow according to the temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow;
The calculation module is used for calculating and determining the expected total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; the estimated total purified water amount is calculated and obtained under the condition of real-time blockage of the pure water filter element and is used for reflecting the real-time water purifying capacity of the pure water filter element;
the adjusting module is used for adjusting the flushing logic for flushing the pure water filter element according to the predicted total water purifying amount and the preset total water purifying amount threshold of the pure water filter element, and determining the flushing logic after adjustment;
the control module is used for controlling the water purifying equipment to flush the pure water filter element according to the adjusted flushing logic;
the calculation module comprises a change coefficient calculation unit and a predicted total water purification amount calculation unit;
the change coefficient calculation unit includes: a total purified water amount determining unit configured to determine, based on each of the purified water flow amounts, each total purified water amount corresponding to each of the purified water flow amounts; the average value calculating unit is used for calculating average purified water flow corresponding to each purified water flow and average total purified water quantity corresponding to each total purified water quantity respectively; a difference determining unit configured to determine a purified water flow rate difference between each of the purified water flows and the average purified water flow rate, and a total purified water volume difference between each of the total purified water volumes and the average total purified water volume; the change coefficient determining unit is used for determining a change coefficient corresponding to the purified water flow according to the purified water flow difference value and the total purified water flow difference value;
And the estimated total water purifying amount calculating unit is used for calculating and determining the estimated total water purifying amount of the pure water filter element according to the change coefficient, the pure water flow and the corresponding total water purifying amount.
4. An electronic device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the flushing control method of a water purification device according to any one of claims 1 to 2.
5. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the flushing control method of a water purification apparatus as claimed in any one of claims 1 to 2.
6. A water purification apparatus, the water purification apparatus comprising: the device comprises a pure water filter element, a detection assembly, a flushing adjusting assembly and a controller;
the detection component is in communication connection with the controller, and the flushing regulation component is in communication connection with the controller; in the working process of the water purifying equipment, the detection component collects the purified water flow of the purified water filter element and transmits the collected purified water flow to the controller;
The controller obtains the purified water flow; acquiring the water temperature in the water purifying equipment; correcting the obtained purified water flow according to the temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow; calculating and determining the predicted total purified water amount of the purified water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; according to the predicted total water purifying amount and a preset total water purifying amount threshold value of the pure water filter element, adjusting flushing logic for flushing the pure water filter element, and determining flushing logic after adjustment; controlling the flushing adjusting assembly of the water purifying equipment to flush the pure water filter element according to the adjusted flushing logic; the estimated total purified water amount is calculated and obtained under the condition of real-time blockage of the pure water filter element and is used for reflecting the real-time water purifying capacity of the pure water filter element;
wherein, based on the purified water flow and the total purified water amount corresponding to the purified water flow, calculating and determining the predicted total purified water amount of the purified water filter element comprises: determining each total purified water amount corresponding to each purified water flow based on each purified water flow; respectively calculating the average purified water flow corresponding to each purified water flow and the average total purified water quantity corresponding to each total purified water quantity; determining a purified water flow difference between each of the purified water flows and the average purified water flow, and a total purified water amount difference between each of the total purified water amounts and the average total purified water amount; determining a change coefficient corresponding to the purified water flow according to the purified water flow difference and the total purified water flow difference; and calculating and determining the expected total water purifying quantity of the pure water filter element according to the change coefficient, the pure water flow and the corresponding total water purifying quantity.
7. The water purification apparatus of claim 6, wherein the detection assembly comprises: a flow rate detecting member;
the flow detection part collects the purified water flow and transmits the collected purified water flow to the controller.
8. The water purification apparatus of claim 6, wherein the detection assembly further comprises: a temperature detecting member;
the temperature detection part is used for collecting the water temperature in the water purifying equipment and transmitting the collected water temperature to the controller;
and the controller corrects the obtained purified water flow according to the temperature correction coefficient corresponding to the purified water flow and the water temperature to obtain corrected purified water flow.
9. The water purification apparatus of claim 6, wherein the controller determines a first flush logic as the flush logic of the flush adjustment assembly when the predicted total water purification amount is less than a preset total water purification amount minimum of the pure water cartridge, wherein the flush parameter in the first flush logic comprises at least one of a first flush time period, a first interval water purification amount, a first flush pump voltage, a first flush pump speed, and a first return water time period, wherein the first flush time period is greater than an initial flush time period in the preset flush logic of the pure water cartridge, and/or wherein the first interval water purification amount is less than an initial interval water purification amount in the preset flush logic, and/or wherein the first flush pump voltage is greater than an initial flush pump voltage in the preset flush logic, and/or wherein the first flush pump speed is greater than an initial flush pump speed in the preset flush logic, and/or wherein the first return water time period is greater than an initial return water period in the preset flush logic.
10. The water purification apparatus of claim 6, wherein the controller determines a second flush logic as the flush logic of the flush adjustment assembly when the predicted total water purification amount is greater than a preset total water purification amount maximum value of the pure water cartridge, wherein the flush parameter in the second flush logic includes at least one of a second flush time period, a second interval water purification amount, a second flush pump voltage, a second flush pump speed, and a second return water time period, wherein the second flush time period is less than an initial flush time period in the preset flush logic of the pure water cartridge, and/or wherein the second interval water purification amount is greater than an initial interval water purification amount in the preset flush logic, and/or wherein the second flush pump voltage is less than an initial flush pump voltage in the preset flush logic, and/or wherein the second flush pump speed is less than an initial flush pump speed in the preset flush logic, and/or wherein the second return water time period is less than an initial return water time period in the preset flush logic.
11. The water purification apparatus of claim 6, wherein the flush adjustment assembly comprises: the water pump is arranged on the water inlet branch of the pure water filter element, and the waste water valve is arranged on the waste water branch of the pure water filter element.
12. The water purification apparatus of claim 11, wherein the flush adjustment assembly comprises: the water pump on the water inlet branch of the pure water filter element, the waste water valve on the waste water branch of the pure water filter element, the backwater branch communicated with the water inlet branch and the water producing branch of the pure water filter element, and the backwater valve on the backwater branch.
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