CN113979493A - Flushing control method and device for water purification equipment, electronic equipment and water purification equipment - Google Patents

Flushing control method and device for water purification equipment, electronic equipment and water purification equipment Download PDF

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Publication number
CN113979493A
CN113979493A CN202111493001.0A CN202111493001A CN113979493A CN 113979493 A CN113979493 A CN 113979493A CN 202111493001 A CN202111493001 A CN 202111493001A CN 113979493 A CN113979493 A CN 113979493A
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China
Prior art keywords
water
flushing
purified water
filter element
pure water
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Granted
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CN202111493001.0A
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CN113979493B (en
Inventor
陈静
李一然
詹婷
陈子斌
宁贵勇
李文灿
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • 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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Abstract

The application relates to a washing control method and device of water purification equipment, electronic equipment and water purification equipment. The method comprises the following steps: in the working process of the water purifying equipment, acquiring the purified water flow of a purified water filter element of the water purifying equipment; calculating and determining the estimated total purified water quantity of the pure water filter element based on the purified water flow and the total purified water quantity corresponding to the purified water flow; adjusting the flushing logic for flushing the pure water filter element according to the estimated total pure water amount and a preset total pure water amount threshold value of the pure water filter element, and determining the adjusted flushing logic; and controlling the water purification equipment to flush the pure water filter element according to the adjusted flushing logic. By adopting the method provided by the embodiment of the application, the water purification 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, water can be saved, and the service life of the pure water filter element is effectively prolonged.

Description

Flushing control method and device for water purification equipment, electronic equipment and water purification equipment
Technical Field
The application relates to the technical field of water purification equipment, in particular to a flushing control method and device of water purification equipment, electronic equipment, a storage medium and water purification equipment.
Background
With the continuous development of water purification technology, water purification equipment capable of effectively removing various pollutants in tap water is available. The water purifying equipment is provided with a multi-stage filter element, which comprises 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, at present, the water purifying equipment is generally provided with a fixed flushing procedure, and the flushing frequency and the flushing time in the fixed flushing procedure are generally set according to the water purifying time or the water purifying quantity of the filter element, for example, the flushing time is set to be 30 seconds per 10 minutes of purified water, or the flushing time is set to be 30 seconds per 20 liters of purified water.
However, the water quality difference is large in all regions throughout the country, and in the regions with poor water quality, the water purification equipment provided with the fixed flushing program may cause the filter element to be blocked quickly due to insufficient flushing frequency and flushing time, while in the regions with good water quality, the flushing water may be wasted due to excessive flushing frequency and flushing time.
Disclosure of Invention
In view of the above, it is desirable to provide a method and an apparatus for controlling flushing of a water purification apparatus, an electronic apparatus, a storage medium, and a water purification apparatus, which can automatically adjust a flushing program of the water purification apparatus.
A method of controlling flushing of a water purification apparatus, the method comprising:
in the working process of the water purifying equipment, acquiring the purified water flow of a purified water filter element of the water purifying equipment;
calculating and determining the estimated total purified water amount of the pure water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow;
adjusting the flushing logic for flushing the pure water filter element according to the estimated total purified water amount and a preset total purified water amount threshold value of the pure water filter element, and determining the adjusted flushing logic;
and controlling the water purification equipment to flush the pure water filter element according to the adjusted flushing logic.
In one embodiment, after the obtaining of the purified water flow rate of the pure water filter element of the water purifying device, before the calculating and determining of the expected total purified water amount of the pure 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 purification equipment;
and correcting the obtained purified water flow according to the purified water flow and the temperature correction coefficient corresponding to the water temperature to obtain the corrected purified water flow.
In one embodiment, the corrected purified water flow rate is a product of the purified water flow rate and the temperature correction coefficient corresponding to the water temperature.
In one embodiment, the calculating and determining a predicted total purified water amount of the pure water filter element based on the purified water flow and a total purified water amount corresponding to the purified water flow includes:
determining a variation coefficient corresponding to the purified water flow based on the purified water flow and a total purified water amount corresponding to the purified water flow;
and calculating and determining the estimated total purified water amount of the pure water filter element according to the change coefficient, the purified water flow and the corresponding total purified water amount.
In one embodiment, the determining a variation coefficient corresponding to the purified water flow rate based on the purified water flow rate and a total purified water amount corresponding to the purified water flow rate includes:
determining each total water purification amount corresponding to each water purification amount based on each water purification amount;
respectively calculating the average purified water flow corresponding to each purified water flow and the average total purified water amount corresponding to each total purified water amount;
determining a net water flow difference between each net water flow and the average net water flow, and a total net water amount difference between each total net water amount and the average total net water amount;
and determining a change coefficient corresponding to the purified water flow according to each purified water flow difference value and each total purified water amount difference value.
In one embodiment, the variation coefficient corresponding to the purified water flow rate is a ratio of a product of the purified water flow rate difference and the total purified water amount difference to a sum of squares of the total purified water amount difference.
In one embodiment, the predicted total purified water amount of the pure water filter element is a ratio of a difference between the purified water flow and a preset purified water flow minimum value of the pure water filter element and the variation coefficient, and a sum of total purified water amounts corresponding to the purified water flow.
In one embodiment, the adjusting the flushing logic for flushing the pure water filter element according to the predicted total pure water amount and the preset total pure water amount threshold of the pure water filter element and determining the adjusted flushing logic includes:
comparing the estimated total purified water quantity with a preset total purified water quantity threshold value of the pure water filter element, wherein the preset total purified water quantity threshold value comprises a preset total purified water quantity minimum value and a preset total purified water quantity maximum value;
if the estimated total purified water amount is smaller than the preset total purified water amount minimum value, determining a first flushing logic as the adjusted flushing logic for flushing the pure water filter element, wherein a flushing parameter in the first flushing logic comprises 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 water returning duration, the first flushing duration is longer than an initial flushing duration in the preset flushing logic of the pure water filter element, and/or the first interval purified water amount is smaller than an initial interval purified water amount 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 water return time length is longer than the initial water return time length in the preset flushing logic;
if the estimated total purified water amount is larger than the preset maximum total purified water amount, 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, a second interval purified water amount, a second flushing pump voltage, a second flushing pump rotating speed and a second flushing time, the second flushing time is smaller than the initial flushing time, and/or the second interval purified water amount is larger than the initial interval purified water 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 water return time is smaller than the initial water return time.
A flushing control device for a water purification apparatus, the device comprising:
the acquisition module is used for acquiring the purified water flow of a purified water filter element of the water purifying equipment in the working process of the water purifying equipment;
the calculation module is used for calculating and determining the estimated total purified water quantity of the pure water filter element based on the purified water flow and the total purified water quantity 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 estimated total purified water amount and a preset total purified water amount threshold value of the pure water filter element and determining the adjusted flushing logic;
and the control module is used for controlling the water purification 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, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned flushing control method of a water purification device.
A water purification apparatus, comprising: the device comprises a pure water filter element, a detection assembly, a washing adjustment assembly and a controller;
the detection assembly is in communication connection with the controller, and the flushing regulation assembly is in communication connection with the controller; in the working process of the water purifying equipment, the detection assembly collects the purified water flow of the pure water filter element and transmits the collected purified water flow to the controller;
the controller acquires the flow of the purified water; calculating and determining the estimated total purified water amount of the pure water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; adjusting the flushing logic for flushing the pure water filter element according to the estimated total purified water amount and a preset total purified water amount threshold value of the pure water filter element, and determining the adjusted flushing logic; and controlling the washing adjusting assembly of the water purifying equipment to wash the pure water filter element according to the adjusted washing logic.
In one embodiment, the detection assembly comprises: a flow rate detecting member;
the flow detection piece collects the purified water flow and transmits the collected purified water flow to the controller.
In one embodiment, the flow detecting member includes: a flow sensor.
In one embodiment, the detection assembly further comprises: a temperature detection member;
the temperature detection piece collects the water temperature in the water purification equipment and transmits the collected water temperature to the controller;
and the controller corrects the obtained purified water flow according to the purified water flow and the temperature correction coefficient corresponding to the water temperature to obtain the corrected purified water flow.
In one embodiment, the controller determines a first flushing logic as the flushing logic of the flushing regulating component when the expected total clean water amount is less than a preset total clean water amount minimum value of the pure water filter element, wherein the flushing parameter in the first flushing logic includes at least one of a first flushing time period, a first interval clean water amount, a first flushing pump voltage, a first flushing pump rotating speed and a first return water time period, the first flushing time period is greater than an initial flushing time period in the preset flushing logic of the pure water filter element, and/or the first interval clean water amount is less than an initial interval clean water amount 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 rotating speed is greater than an initial flushing pump rotating speed in the preset flushing logic, and/or the first water return time length is greater than the initial water return time length in the preset flushing logic.
In one embodiment, the controller determines a second flushing logic as the flushing logic of the flushing adjusting component when the expected total purified water amount is greater than the preset maximum total purified water amount of the pure water filter element, wherein the flushing parameters in the second flushing logic include at least one of a second flushing time period, a second interval purified water amount, a second flushing pump voltage, a second flushing pump rotating speed and a second water returning time period, the second flushing time period is less than the initial flushing time period, 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 rotating speed is less than the initial flushing pump rotating speed, and/or the second water returning time period is less than the initial water returning time period.
In one embodiment, the flush adjustment assembly comprises: the water pump is arranged on a water inlet branch of the pure water filter element, and the waste water valve is arranged on a waste water branch of the pure water filter element.
In one embodiment, the flush adjustment assembly comprises: the water pump is arranged on a water inlet branch of the pure water filter element, the waste water valve is arranged on a waste water branch of the pure water filter element, the return water branch is communicated with the water inlet branch and the water production branch of the pure water filter element, and the return valve is arranged on the return water branch.
In one embodiment, the water purification apparatus further comprises: a water inlet branch, the water production branch and the wastewater branch;
the water inlet branch, the water production branch and the wastewater branch are communicated with the pure water filter element; the water in the water inlet branch flows into the pure water filter element, and flows to the water production branch after being filtered by the pure water filter element; and water in the water inlet branch flows into the pure water filter element, and flows to the wastewater branch after the pure water filter element is washed.
In one embodiment, the water purification apparatus further comprises: the water inlet branch is communicated with the water inlet branch;
the water of the water inlet branch flows into the pure water filter element, and flows to the water return branch after being filtered by the pure water filter element; and water of the return water branch flows into the pure water filter element and flows to the wastewater branch after the pure water filter element is washed.
According to the flushing control method and device for the water purifying equipment, the electronic equipment and the water purifying equipment, in the working process of the water purifying equipment, the purified water flow of the purified water filter element of the water purifying equipment is obtained; calculating and determining the estimated total purified water quantity of the pure water filter element based on the purified water flow and the total purified water quantity corresponding to the purified water flow; adjusting the flushing logic for flushing the pure water filter element according to the estimated total pure water amount and a preset total pure water amount threshold value of the pure water filter element, and determining the adjusted flushing logic; and controlling the water purification equipment to flush the pure water filter element according to the adjusted flushing logic. By adopting the method of the embodiment, the water purification flow of the water purification equipment can reflect the real-time blocking condition of the pure water filter element, the estimated total water purification amount of the pure water filter element is calculated and determined through the water purification flow, and is compared with the preset total water purification amount threshold value, the water purification equipment can automatically adjust the flushing logic for flushing the pure water filter element, so that the flushing logic can adapt to 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.
Drawings
FIG. 1 is a diagram illustrating an exemplary embodiment of a method for controlling a flush of a water purification apparatus;
FIG. 2 is a schematic flow chart illustrating a flushing control method of the water purification apparatus according to an embodiment;
FIG. 3 is a schematic block diagram showing the structure of a water purification apparatus according to an embodiment;
FIG. 4 is a schematic block diagram showing the structure of a water purifying apparatus in another embodiment;
FIG. 5 is a schematic diagram of a water purification apparatus according to an embodiment;
FIG. 6 is a schematic structural view of a water purifying apparatus in another embodiment;
FIG. 7 is a block diagram showing a structure of a flushing control device of the water purifying apparatus according to an embodiment;
FIG. 8 is a diagram illustrating the internal architecture 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 is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application 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 in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the present application, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and, therefore, should not be taken to be limiting of the present application.
The terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The first feature may be directly on or directly under the second feature or may be indirectly on or directly under the second feature via intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" 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. As used herein, the terms "vertical," "horizontal," "up," "down," "left," "right," and the like are for illustrative purposes only and do not denote a single embodiment.
In one embodiment, the application environment of the flushing control method for a water purification apparatus provided by the present application may relate to both the water purification apparatus 102 and the external control apparatus 104, as shown in fig. 1. Wherein, the water purification apparatus 102 is provided with a pure water filter 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 rate of the purified water filter element 300 of the water purification device during the operation of the water purification device 102; calculating and determining a predicted total purified water amount of the pure water filter element 300 based on the purified water flow and the total purified water amount corresponding to the purified water flow; adjusting the flushing logic for flushing the pure water filter element 300 according to the estimated total pure water amount and a preset total pure water amount threshold of the pure water filter element 300, and determining the flushing logic after adjustment; the external control device 104 sends a flushing control command to the water purification device 102 to control the water purification device 102 to flush the pure water filter element 300 according to the adjusted flushing logic.
In one embodiment, the application environment of the flushing control method of the water purification apparatus provided by the present application may only relate to the water purification apparatus 102. Wherein, the water purification device 102 is provided with a pure water filter element 300 and a controller, which can realize processing and control functions. Specifically, the controller obtains the purified water flow rate of the purified water filter element 300 of the water purification apparatus during the operation of the water purification apparatus 102; calculating and determining a predicted total purified water amount of the pure water filter element 300 based on the purified water flow and the total purified water amount corresponding to the purified water flow; according to the estimated total purified water amount and the preset total purified water amount threshold of the pure water filter element 300, adjusting the flushing logic for flushing the pure water filter element 300, determining the adjusted flushing logic, and controlling the water purifying device 102 to flush the pure water filter element 300 according to the adjusted flushing logic.
The water purifying apparatus 102 may be a household water purifying apparatus, such as a pre-purifier, a reverse osmosis purifier, a water softener, an ultrafiltration machine, or an industrial water purifying apparatus. The controller of the water purifying device 102 may be an electronic device, and may be a control circuit board, a control chip, and the like. The external control device 104 includes, but is not limited to, a terminal and a server, the terminal may be a smart phone, a tablet computer, a portable wearable device, and the like, and the server may be implemented by 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 exemplified by a controller applied to the water purifying apparatus 102 in fig. 1, and includes:
and S202, acquiring the purified water flow of a purified water filter element of the water purifying equipment in the working process of the water purifying equipment.
In one embodiment, the water purification device can remove various impurities in tap water, wherein the tap water can also be called raw water, and the water purification device is provided with a plurality of stages of filter elements which are classified according to the use of the filter elements and mainly comprises a front filter element, a pure water filter element and a rear filter element. The preposed filter element is mainly used for removing impurities such as silt, rust, suspended matters, large particles and the like in tap water. Wherein, the preposed filter element can be any one or the combination of a plurality of PP cotton, active carbon, ultrafiltration membranes and ceramic filter elements. The pure water filter element and the post-filter element are mainly used for further removing soluble metal salt, organic matters, bacteria, colloidal particles, heating substances and the like in the pure water. Wherein, the pure water filter core mainly refers to the reverse osmosis membrane filter core, in addition, the pure water filter core can also be nanofiltration membrane or microfiltration membrane filter core etc.. The post-filter element can be any one or a combination of more than one of active carbon, an ultrafiltration membrane and a carbon composite filter element.
In one embodiment, during the operation of the water purifying apparatus, the filter element is inevitably clogged due to impurities in the tap water, and therefore, the filter element needs to be washed to prolong the service life of the filter element. When the filter element is washed, the filter element washing method comprises the step of washing the front filter element, or washing the pure water filter element, or washing the rear filter element. In the embodiments of the present application, the example of flushing the pure water filter element is mainly taken as an example.
Specifically, in the working process of the water purifying device, the purified water flow of the pure water filter element of the water purifying device is obtained. The purified water flow rate refers to the unit time water passing amount of the pure water filter element, specifically to the water production flow rate of the pure water filter element for water production, and the unit is liter per minute (L/min), which is expressed as QAiWherein i represents the number of detections. Along with the continuous jam of pure water filter core, the pure water flow of pure water filter core can reduce constantly in theory, consequently, the real-time jam degree of pure water filter core can be reflected to the pure water flow to follow-up is washed the pure water filter core according to real-time jam degree.
In one of the embodiments, the water purification apparatus is provided with a detection assembly including a flow detection member to collect a purified water flow of a purified water filter element of the water purification apparatus. The flow detecting element may be at least one flow sensor, at least one flow meter, or the like. The detection component can be arranged on a water production branch of the pure water filter element, and the water production branch refers to a water path for water which flows out of the pure water treatment filter element after being treated by the pure water filter element, 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, detection component and controller communication connection, flow detection spare and controller communication connection promptly, detection component has gathered the water purification flow of pure water filter core after, sends the water purification flow for the controller, and the controller carries out follow-up calculation processing. The detection component can directly acquire and obtain the pure water flow and send the pure water flow to the controller, for example, the flow sensor directly acquires and obtains the pure water flow and sends the pure water flow to the controller. The detection assembly can also acquire a pulse signal and send the pulse signal to the controller, and the controller calculates and determines the purified water flow corresponding to the pulse signal according to factory setting parameters of the detection assembly after receiving the pulse signal.
The factory setting parameter of the detection assembly can be the unit time water passing amount corresponding to the unit pulse, and can be specifically determined according to the type and 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 a unit pulse is 0.15L, and if the number of pulse signals acquired by the flow sensor is 20, the controller determines that the purified water flow rate corresponding to the pulse signal is 0.15 × 20 — 3, that is, the purified water flow rate corresponding to the pulse signal is 3L/min, according to the number of pulse signals. It should be noted that, when the detection assembly collects the purified water flow, the purified water flow may be collected at the same time interval or the same purified water amount at the same interval, or may be collected at different time intervals or different purified water amounts at different intervals, that is, collected randomly, and a specific collection manner is not limited herein.
In addition, the detection component can also be arranged on the water inlet branch of the pure water filter element, the water inlet branch refers to a water path for water which is not filtered by the pure water filter element to flow into the pure water filter element, at the moment, the pure water flow obtained by detection of the detection component is the water inlet flow of the pure water filter element, 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 arranged 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 obtained by detection of the detection component, wherein the waste water flow is a known parameter of the water purification equipment.
In one embodiment, the temperature difference is large in regions throughout the country, and the temperature of water has 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 temperature of the raw water and decreases with the temperature of the raw water, that is, when the water purifying apparatus operates in an area with a high water temperature, the purified water flow rate is relatively increased, and when the water purifying apparatus operates in an area with a low water temperature, the purified water flow rate is relatively decreased. Therefore, in order to improve the accuracy of the obtained purified water flow rate, it is necessary to correct the purified water flow rate according to the water temperature, expressed as Ti in degrees celsius (° c), of the area where the water purification apparatus is located.
Wherein, the standard temperature is set to be 25 ℃, and the corrected purified water flow is the purified water flow at the standard temperature. Specifically, after acquiring the purified water flow rate of the pure water filter element of the water purification apparatus, before calculating and determining the expected total purified water amount of the pure 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 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, denoted as QBi。
In one embodiment, according to a large number of experiments, a temperature correction coefficient corresponding to the water temperature, which is expressed as K, is preset, 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 the purified water needs to be corrected to be reduced, namely the temperature correction coefficient corresponding to the water temperature is smaller than the preset value. If the water temperature is lower than the standard temperature, the purified water flow is relatively reduced, and the purified water flow needs to be corrected to be increased, namely the temperature correction coefficient corresponding to the water temperature is larger than the preset value. If the water temperature is the same as the standard temperature, the flow of the purified water 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 smaller than 1, and when the water temperature is lower than the standard temperature, the temperature correction coefficient corresponding to the water temperature is larger 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 formula for calculating the corrected purified water flow is as follows:
QBi＝QAi*K(Ti)
wherein, K (T)i) And the temperature correction coefficient corresponding to the water temperature is shown. Namely the corrected purified water flow, which is the product of the purified water flow and the temperature correction coefficient corresponding to the water temperature. It should be noted that, if the purified water flow rate needs to be corrected, the purified water flow rate after correction is used in the subsequent calculation process, and if the purified water flow rate does not need to be corrected, the purified water flow rate obtained in the subsequent calculation process is directly used.
In one embodiment, the detection assembly of the water purification apparatus further comprises a temperature detection member to collect a temperature of water in the water purification apparatus. The temperature detection element may be at least one temperature sensor, at least one thermometer, or the like. The detection assembly is in communication connection with the controller, namely the temperature detection assembly is in communication connection with the controller, after the water temperature is collected by the detection assembly, the water temperature is sent to the controller, and the controller performs subsequent calculation processing.
And step S204, calculating and determining the estimated total purified water amount of the pure water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow.
In one embodiment, the total clean water volume is the cumulative total water volume of water treated by the pure water filter element, expressed in liters (L) and expressed as Li. Along with the continuous work of pure water filter core, the total water purification volume of pure water filter core can increase constantly, and the total water purification volume of pure water filter core need not to carry out the correction according to the temperature and handles.
Specifically, the detection component may directly acquire the total purified water amount and send the total purified water amount to the controller, for example, the flow sensor directly acquires the total purified water amount and sends the total purified water amount to the controller. The detection assembly can also acquire accumulated pulse signals and send the accumulated pulse signals to the controller, and the controller calculates and determines water purification parameters corresponding to the accumulated pulse signals according to factory setting parameters of the detection assembly after receiving the accumulated pulse signals.
The factory setting parameter of the detection assembly can be the unit time water passing amount corresponding to the unit pulse, and can be specifically determined according to the type and 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, and if the number of the accumulated pulse signals acquired by the flow sensor is 50000, the controller determines that the total net water amount corresponding to the accumulated pulse signals is 0.15 × 50000 — 7500, that is, the total net water amount corresponding to the accumulated pulse signals is 7500L, by calculation according to the number of the accumulated pulse signals.
In one embodiment, the predicted total water purification amount of the pure water filter element refers to a calculated predicted total water purification amount in liters (L), denoted E, which reflects the real-time water purification capacity of the pure water filter element in case of real-time clogging of the pure water filter element.
Specifically, based on the total net water volume that net water flow and net water flow correspond, calculate the prediction total net water volume of confirming the pure water filter core, include: determining a variation 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 predicted total purified water amount of the pure water filter element according to the variation coefficient, the purified water flow and the corresponding total purified water amount.
The unit of the variation coefficient corresponding to the purified water flow is a damping coefficient, namely the damping coefficient of the purified water flow relative to the total purified water amount, is expressed as b per minute (/ min), and is used for expressing the speed of the purified water flow damping of the pure water filter element, wherein the numerical value is generally a negative number, and the larger the absolute value of the numerical value is, the faster the purified water flow damping of the pure water filter element is.
In one embodiment, the calculation method of the variation coefficient corresponding to the purified water flow rate 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 amount corresponding to each total purified water amount; determining a purified water flow difference value between each purified water flow and the average purified water flow, and a total purified water amount difference value between each total purified water amount and the average total purified water amount; and determining a change coefficient corresponding to the purified water flow according to each purified water flow difference value and each total purified water flow difference value. The purified water flow rate in the following formula is an example of the purified water flow rate after correction.
Specifically, according to each purified water flow QBiDetermining the total water purification L corresponding to each water purification flowi. Calculate each water purification flow QBiCorresponding average purified water flow
Figure BDA0003399109900000131
And the total water purification amount LiCorresponding average total water purification
Figure BDA0003399109900000132
The calculation formulas are respectively as follows:
Figure BDA0003399109900000133
Figure BDA0003399109900000134
determining the variation coefficient corresponding to the flow rate of the purified water, and expressing as biThe calculation formula is as follows:
Figure BDA0003399109900000135
specifically, the variation coefficient corresponding to the purified water flow is a ratio of a product of a purified water flow difference value and a total purified water amount difference value to a sum of squares of the total purified water amount difference value.
Calculating and determining the estimated total purified water quantity E of the pure water filter element, wherein the calculation formula is as follows:
Figure BDA0003399109900000136
wherein, B represents the water purification flow minimum of predetermineeing of pure water filter core, if the water purification flow of pure water filter core is less than predetermineeing water purification flow minimum, indicates that the life of pure water filter core has been reached, needs to change. Specifically, the estimated total purified water amount of the pure water filter element is a ratio of a difference between the purified water flow and a preset purified water flow minimum value of the pure water filter element and a variation coefficient, and a sum of total purified water amounts corresponding to the purified water flow.
And S206, adjusting the flushing logic for flushing the pure water filter element according to the estimated total pure water amount and the preset total pure water amount threshold value of the pure water filter element, and determining the flushing logic after adjustment.
In one embodiment, the preset total purified water amount threshold is a factory-set parameter of the pure water filter element, and can be specifically determined according to the type and model of the pure water filter element, and the preset total purified water amount threshold includes a preset maximum total purified water amount F2And a preset minimum value F of total water purification1. And adjusting the flushing logic for flushing the pure water filter element according to the estimated total pure water amount and the preset total pure water amount threshold value 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 purified water amount is compared with a preset total purified water amount threshold value of the pure water filter element.
If the estimated total purified water amount is smaller than the preset minimum total purified water amount, namely the real-time blockage condition of the pure water filter element is serious, at the moment, the first flushing logic is determined as the adjusted flushing logic for flushing the pure water filter element, and the flushing parameters in the first flushing logic comprise at least one of first flushing time, first interval purified water amount, first flushing pump voltage, first flushing pump rotating speed and first water returning time.
The first washing time length is longer than the initial washing time length in the preset washing logic of the pure water filter element, the first interval water purification amount is smaller than the initial interval water purification amount in the preset washing logic, and the interval water purification amount refers to the difference value of the total water purification amount of the pure water filter element between two times of washing. The first washing pump voltage is greater than the initial washing pump voltage in the preset washing logic, the washing pump voltage refers to the voltage of a water pump on a water inlet branch of the pure water filter element when washing is performed, the first washing pump rotating speed is greater than the initial washing pump rotating speed in the preset washing logic, the washing pump rotating speed refers to the rotating speed of the water pump on the water inlet branch of the pure water filter element when washing is performed, and the first water return time length is greater than the initial water return time length in the preset washing logic.
Specifically, the first flushing time period may be set according to actual technical requirements, in one embodiment, the time period after the initial flushing time period is increased by a first preset time period may be set, the first preset time period may be set according to actual technical requirements, and in one embodiment, the first preset time period may be set to 5 to 10 seconds. The first interval purified water amount may be set according to actual technical requirements, and in one embodiment, the interval purified water amount may be set to be the initial interval purified water amount after the first preset purified water amount is reduced, and the first preset purified water amount may be set according to actual technical requirements, and in one embodiment, the interval purified water amount may be set to be 5L, and in one embodiment, the initial interval purified water amount may be set to be 20L. The first flush pump voltage may be set according to actual technical requirements, and in one embodiment, the first flush pump voltage is obtained by increasing the initial flush pump voltage by a first preset multiple, and the first preset multiple may be set according to actual technical requirements, and in one embodiment, the first preset multiple may be set to 5% -10%. The first washing pump rotation speed can be set according to actual technical requirements, in one embodiment, the washing pump rotation speed is obtained by increasing the initial pump rotation speed by a first preset percentage, the first preset percentage can be set according to actual technical requirements, and in one embodiment, the first preset percentage can be set to be 5% -10%. The first water returning time period may be set according to actual technical requirements, in one embodiment, the water returning time period after the first preset water returning time period is added to the initial water returning time period, and the first preset water returning time period may be set according to actual technical requirements, and in one embodiment, the first preset water returning time period may be set to 10 seconds.
And determining a second flushing logic as an adjusted flushing logic for flushing the pure water filter element if the estimated total purified water amount is larger than the preset maximum total purified water amount, namely the real-time blocking condition of the pure water filter element is not serious, wherein the flushing parameters in the second flushing logic comprise at least one of a second flushing time length, a second interval purified water amount, a second flushing pump voltage, a second flushing pump rotating speed and a second water returning time length. The second washing duration is less than the initial washing duration, the second interval purified water quantity is greater than the initial interval purified water quantity, the second washing pump voltage is less than the initial washing pump voltage, the second washing pump rotating speed is less than the initial washing pump rotating speed, and the second water return duration is less than the initial water return duration.
Specifically, the second flushing time period may be set according to actual technical requirements, in one embodiment, the time period after the initial flushing time period is reduced by the second preset time period may be set, the second preset time period may be set according to actual technical requirements, and in one embodiment, the second preset time period may be set to 5 to 10 seconds. The second interval purified water amount may be set according to actual technical needs, and in one embodiment, the interval purified water amount may be set to be the interval purified water amount after the initial interval purified water amount is increased by a second preset purified water amount, and the second preset purified water amount may be set according to actual technical needs, and in one embodiment, the interval purified water amount may be set to be 5L, and in one embodiment, the initial interval purified water amount may be set to be 20L. The second flush pump voltage may be set according to actual technical requirements, and in one embodiment, the second flush pump voltage may be set to be the flush pump voltage obtained by reducing the initial flush pump voltage by a second preset multiple, and the second preset multiple may be set according to actual technical requirements, and in one embodiment, the second flush pump voltage may be set to be 5% to 10%. The second washing pump rotation speed may be set according to actual technical requirements, and in one embodiment, the second washing pump rotation speed may be set to be the washing pump rotation speed after the initial pump rotation speed is reduced by a second preset percentage, and the second preset percentage may be set according to actual technical requirements, and in one embodiment, the second washing pump rotation speed may be set to be 5% to 10%. The second water returning time period may be set according to actual technical requirements, in one embodiment, the water returning time period after the second preset water returning time period is reduced from the initial water returning time period, and the second preset water returning time period may be set according to actual technical requirements, and in one embodiment, the second preset water returning time period may be set to 10 seconds.
It should be noted that, the first flushing time and the second flushing time, the first interval purified water amount and the second interval purified water amount, the first flushing pump voltage and the second flushing pump voltage, the first flushing pump rotating speed and the second flushing pump rotating speed, and the first water returning time and the second water returning time may be the same or different, and the specific values are not limited herein.
Wherein, if the estimated total water purification amount is between the preset total water purification amount minimum value and the preset total water purification amount maximum value, namely 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 can be used.
And S208, controlling the water purifying equipment to flush the pure water filter element according to the adjusted flushing logic.
In one embodiment, after the flushing logic for flushing the pure water filter element is determined, if it is determined that the flushing condition corresponding to the adjusted flushing logic of the pure water filter element is reached, the water purification device is controlled to flush the pure water filter element according to the adjusted flushing logic.
Wherein, in order to improve the washing effect of pure water filter core, can wash the pure water filter core with the water after the pure water filter core carries out filtration treatment, can also wash the pure water filter core with the water after leading filter core carries out filtration treatment, and concrete needs are confirmed according to water purification unit's structure.
In the flushing control method of the water purification equipment, the purified water flow of the pure water filter element of the water purification equipment is obtained in the working process of the water purification equipment; calculating and determining the estimated total purified water quantity of the pure water filter element based on the purified water flow and the total purified water quantity corresponding to the purified water flow; adjusting the flushing logic for flushing the pure water filter element according to the estimated total pure water amount and a preset total pure water amount threshold value of the pure water filter element, and determining the adjusted flushing logic; and controlling the water purification equipment to flush the pure water filter element according to the adjusted flushing logic. By adopting the method of the embodiment, the water purification flow of the water purification equipment can reflect the real-time blocking condition of the pure water filter element, the estimated total water purification amount of the pure water filter element is calculated and determined through the water purification flow, and is compared with the preset total water purification amount threshold value, the water purification equipment can automatically adjust the flushing logic for flushing the pure water filter element, so that the flushing logic can adapt to 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.
It should be understood that, although the steps in the above-described flowcharts are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in a strict order unless explicitly stated in the application, and may be performed in other orders. Moreover, at least a part of the steps in the above-mentioned flowcharts 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 performing the steps or the stages is not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a part of the steps or the stages in other steps.
In one embodiment, as shown in fig. 3, a block diagram of a water purifying apparatus is provided. The water purification unit includes: a water inlet branch 110, a water production branch 120, a wastewater branch 130, a pure water filter element 300, a detection assembly 400 and a controller, which is not shown in fig. 3.
In one embodiment, the pure water filter element 300 of the water purifying apparatus may be used to remove soluble metal salts, organic substances, bacteria, colloidal particles, exothermic substances, etc. from water. The pure water filter element 300 is mainly a reverse osmosis membrane filter element, and the pure water filter element 300 may be a nanofiltration membrane or a microfiltration membrane filter element. The inlet branch line 110 is a water path through which water that has not been filtered by the pure water filter 300 flows into the pure water filter 300, the outlet branch line 120 is a water path through which water that has been filtered by the pure water filter 300 flows out of the pure water filter 300, and the waste water branch line 130 is a water path through which waste water generated after washing the pure water filter 300 flows out of the pure water filter 300. Since the water inlet branch 110, the water production branch 120 and the wastewater branch 130 all involve flowing into or out of the pure water filter element 300, the water inlet branch 110, the water production branch 120 and the wastewater branch 130 are communicated with the pure water filter element 300.
In one embodiment, the water purification apparatus further comprises: the water inlet valve is arranged on the water inlet branch circuit 110 and used for controlling the on-off of the water inlet branch circuit 110, the pure water port is arranged on the water production branch circuit 120 and used for controlling the on-off of the water production branch circuit 120, and the waste water valve is arranged on the waste water branch circuit 130 and used for controlling the water flow of the waste water branch circuit 130. It should be noted that the waste water valve belongs to a semi-open-close valve, and in the closed state, there is still a through opening, and water can still flow out from the opening, therefore, 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.
Wherein, the pure water mouth is provided with the pure water tap, and when the pure water tap was in the open mode, water purification unit was in operating condition promptly. Wherein, 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 pure water port of the water purifying equipment is provided with the electric control faucet, 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 equipment, if the controller detects that the detection assembly 400 generates a pulse signal, the mechanical faucet is determined to be opened, so that the water purifying equipment is controlled to enter a working state.
It should be noted that the inlet valve, the waste water valve and the return valve of the water purifying apparatus may be solenoid valves, including but not limited to hydraulic solenoid valves and pneumatic solenoid valves, and the controller may adjust the water flow rate in the corresponding branch by controlling the opening degree of the solenoid valves.
In one embodiment, the pure water filter 300 is inevitably clogged during the operation of the water purifying apparatus, and therefore, the pure water filter 300 needs to be washed to extend the life of the pure water filter 300. Specifically, in the working process of the water purifying apparatus, the purified water flow rate of the purified water filter 300 of the water purifying apparatus is acquired. The purified water flow rate is a unit time water passing amount through the pure water filter 300, and more particularly, a unit of water production flow rate of water produced by the pure water filter, expressed as QA per minute (L/min)iWherein i represents the number of detections. With followingThe pure water filter element 300 is continuously clogged and the pure water flow rate of the pure water filter element 300 is theoretically continuously decreased, so that the pure water flow rate can reflect the real-time clogging degree of the pure water filter element 300, so that the pure water filter element 300 can be subsequently washed according to the real-time clogging 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 provided on the water production branch 120 and is communicatively connected with the controller. Wherein, the detection assembly includes flow detection spare to the water purification flow after the pure water filter core 300 of gathering water purification unit carries out filtration treatment, transmits the water purification flow of gathering to the controller. The flow detection piece is in communication connection with the controller and used for collecting the flow of purified water. The flow detecting member may be at least one flow sensor, at least one flow meter, or the like.
Wherein, the detecting component 400 can directly collect and obtain the purified water flow and send the purified water flow to the controller, for example, the flow sensor directly collects and obtains the purified water flow and sends the purified water flow to the controller. The detection assembly 400 can also acquire a pulse signal and send the pulse signal to the controller, and the controller calculates and determines the purified water flow corresponding to the pulse signal according to factory setting parameters of the detection assembly 400 after receiving the pulse signal.
The factory setting parameter of the detecting component 400 may be a unit time water passing amount corresponding to a unit pulse, and may be specifically determined according to the type and model of the detecting component 400. For example, the factory setting parameter of the flow sensor is that the water passing amount per unit time corresponding to a unit pulse is 0.15L, and if the number of pulse signals acquired by the flow sensor is 20, the controller determines that the purified water flow rate corresponding to the pulse signal is 0.15 × 20 — 3, that is, the purified water flow rate corresponding to the pulse signal is 3L/min, according to the number of pulse signals. It should be noted that, when the detection assembly 400 collects the purified water flow, the purified water flow may be collected at the same time interval or the same purified water amount at the same time interval, or may be collected at different time intervals or different purified water amounts at different time intervals, that is, collected randomly, and a specific collection manner is not limited herein.
In addition, the detection component 400 can also be arranged on the water inlet branch 110 of the pure water filter element 300, and at this time, the pure water flow obtained by the detection of the detection component 400 is the water inlet flow of the pure water filter element 300, which cannot directly reflect the real-time blocking condition of the pure water filter element 300 and needs to be further calculated. Specifically, if the detecting component 400 is disposed on the water inlet branch 110 of the pure water filter element 300, the pure water flow of the pure water filter element 300 is the difference between the water inlet flow detected by the detecting component 400 and the waste water flow, wherein the waste water flow is a known parameter of the water purifying apparatus.
In one embodiment, the temperature difference is large in regions throughout the country, and the temperature of water has certain influence on the working process of the water purifying equipment. For example, if the pure water filter element 300 is a reverse osmosis membrane filter element, the water permeability of the reverse osmosis membrane increases as the temperature of the raw water increases, and decreases as the temperature of the raw water decreases, that is, when the water purifying apparatus operates in an area where the temperature of water is high, the purified water flow rate is relatively increased, and when the water purifying apparatus operates in an area where the temperature is low, the purified water flow rate is relatively decreased. Therefore, in order to improve the accuracy of the obtained purified water flow rate, it is necessary to correct the purified water flow rate according to the water temperature, expressed as Ti in degrees celsius (° c), of the area where the water purification apparatus is located.
Wherein, the standard temperature is set to be 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 300 of the water purifying apparatus, the method further includes: 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, denoted as QBi。
In one embodiment, the detection assembly 400 of the water purifying apparatus further includes a temperature detection member to collect the temperature of water in the water purifying apparatus. The temperature detection element 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 piece is in communication connection with the controller, after the water temperature is collected by the detection assembly 400, the water temperature is sent to the controller, and the controller performs subsequent calculation processing. The flow rate detecting element and the temperature detecting element in the detecting assembly 400 may be sequentially disposed in a flow direction of water in a branch in which the detecting assembly 400 is located.
In one embodiment, in order to enable the water in the water inlet branch 110 to flow into the pure water filter element 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 element 300, and the water pump is used for pressurizing the water in the water inlet branch 110. Wherein, the water pump can be any one of a pressure stabilizing pump or a variable frequency water pump. The controller can adjust the flushing parameters of the pure water filter element 300 by controlling the rotating speed or the voltage of the water pump.
In one embodiment, the controller controls the flushing regulating assembly of the water purifying apparatus according to the flushing logic to flush the pure water filter element 300. Specifically, the water pump disposed on the water inlet branch 110 of the pure water filter element 300 and the waste water valve disposed on the waste water branch 130 of the pure water filter element 300 jointly constitute 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.
When the expected total purified water amount is smaller than the preset total purified water amount minimum value of the pure water filter element 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 first flushing duration, first interval purified water amount, first flushing pump voltage and first flushing pump rotating speed.
The first flushing time is longer than the initial flushing time in the preset flushing logic of the pure water filter element 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 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.
When the expected total purified water amount is larger than the preset maximum total purified water amount of the pure water filter element 300, the controller determines a second flushing logic as the flushing logic of the flushing adjusting assembly, wherein the flushing parameters in the second flushing logic comprise at least one of a second flushing time length, a second interval purified water amount, a second flushing pump voltage and a second flushing pump rotating speed.
And the second flushing duration is less than the initial flushing duration, the second interval purified water quantity is greater than the initial interval purified water quantity, the voltage of the second flushing pump is less than the voltage of the initial flushing pump, and the rotating speed of the second flushing pump is less than the rotating speed of the initial flushing pump.
In one embodiment, the water purification apparatus further comprises: a front filter element communicated with the water inlet branch 110 and disposed at the upstream of the pure water filter element 300. The pre-filter element is mainly used for removing impurities such as silt, rust, suspended matters, large particles and the like in tap water so as to prolong the service life of the pure water filter element 300. Wherein, the preposed filter element can be any one or the combination of a plurality of PP cotton, active carbon, ultrafiltration membranes and ceramic filter elements. At this time, the water purifying apparatus further includes a raw water inlet branch, the raw water inlet branch is communicated with the pre-filter, water of the raw water inlet branch flows into the pre-filter, and the water after being filtered by the pre-filter flows to the water 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 preposed filter element through the raw water inlet.
In one embodiment, the water purification apparatus further comprises: a rear filter element which is communicated with the water production branch 120 and is arranged at the downstream of the pure water filter element 300. The post-positioned filter element can further remove soluble metal salt, organic matters, bacteria, colloidal particles, exothermic substances and the like in water. The post-filter element can be any one or a combination of more than one 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 connected state, and the water in the water purifying apparatus flows in the direction of flow, the water in the water inlet branch 110 flows into the pure water filter element 300, and after the pure water filter element 300 performs a filtering process, the water flows into the water producing branch 120 and flows out from the pure water port at the end of the water producing branch 120. When the water purifying apparatus is in the non-operating state, that is, the water purifying apparatus is powered off, the water producing branch 120 is in the off state, the pure water filter element 300 can be washed in the non-operating state, the flow direction of water in the water purifying apparatus is the same, and water in the water inlet branch 110 flows into the pure water filter element 300 and then flows out from the wastewater branch 130. In this flushing manner, the pure water filter element 300 is flushed by the water in the water inlet branch 110, that is, the pure water filter element 300 is flushed by the water filtered by the pre-filter element.
In one embodiment, as shown in fig. 4, a block diagram of a water purifying apparatus is provided, and compared with fig. 3, the water purifying apparatus shown in fig. 4 further includes: the water return branch 140 is connected to the water inlet branch 110 and the water producing branch 120, and the water return branch 140 is a water path through which washing water for washing the pure water filter 300 flows into the pure water filter 300.
In one embodiment, the communication position between the water return branch 140 and the water inlet branch 110 is between the water inlet valve and the water pump, so as to ensure that water can flow into the pure water filter element 300 when the pure water filter element 300 is washed. The communication position of the water return branch 140 and the water production branch 120 is between the detection assembly 400 and the pure water filter element 300, so as to prevent water flowing to the detection assembly 400 when the pure water filter element 300 is washed, thereby affecting the detection assembly 400.
In one embodiment, the water purification apparatus further comprises: and a return valve is arranged on the return branch 140 and used for controlling the on-off of the return branch 140. During the operation of the water purifying apparatus, the water return branch 140 is in a disconnected state, i.e., the return valve is in a closed state, so that the water in the water production branch 120 can flow out from the pure water port, thereby supplying water to the user. At this time, the flow direction of the water in the water purifying apparatus is, the water in the water inlet branch 110 flows into the pure water filter element 300, and after being filtered by the pure water filter element 300, flows to the water producing branch 120 and flows out from the pure water port at the end of the water producing branch 120.
In one embodiment, when the water purifying apparatus is in a non-operating 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 element 300 can be flushed in the non-operating state. At this time, the return water branch 140 is in a connected state, that is, the return valve 1401 is in an open state, wherein 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 time period, and the preset time period may be set according to actual technical requirements.
Specifically, when the return water branch 140 is in a connected state, the flow direction of the water in the water purification apparatus is that, if the raw water inlet 1001 is in a closed state, that is, the raw water does not enter the water, the water in the return water branch 140 flows into the pure water filter element 300, washes the pure water filter element 300, and flows out from the wastewater branch 130 after flowing into the pure water filter element 300; if the raw water inlet 1001 is in an open state, that is, the raw water continuously enters the water inlet, the water in the water inlet branch 110 flows into the pure water filter element 300, flows to the water return branch 140 after the pure water filter element 300 performs filtering, and flows out of the waste water branch 130 after the water in the water return branch 140 flows into the pure water filter element 300. In this flushing manner, the pure water filter element 300 is used to flush the filtered water, that is, the pure water filter element 300 is always immersed in the pure water, which can effectively improve the flushing effect.
In one embodiment, the controller controls the flushing regulating assembly of the water purifying apparatus according to the flushing logic to flush the pure water filter element 300. Specifically, the water pump disposed on the water inlet branch 110 of the pure water filter element 300, the waste water valve disposed on the waste water branch 130 of the pure water filter element 300, the water return branch 140 communicated with the water inlet branch 110 and the water production branch 120 of the pure water filter element 300, and the return valve disposed on the water return branch 140 jointly constitute the flushing adjusting assembly of the water purifying apparatus shown in fig. 4.
When the expected total purified water amount is smaller than the preset total purified water amount minimum value of the pure water filter element 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 length. The first water return duration is longer than the initial water return duration in the preset flushing logic of the pure water filter element 300, and the controller adjusts the first water return duration by controlling the opening duration of the return valve on the water return branch 140.
When the expected total purified water amount is larger than the preset maximum total purified water amount of the pure water filter element 300, the controller determines the second flushing logic as the flushing logic of the flushing adjusting assembly, and the flushing parameters in the second flushing logic may further include a second water returning duration. The second water return time is shorter than the initial water return time in the preset flushing logic of the pure water filter element 300, and the controller adjusts the second water return time by controlling the opening time of the return valve on the water return branch 140.
It should be noted that, when the water purifying apparatus is in a non-operating state, that is, when the water purifying apparatus is powered off, although the waste water valve is in a closed state, since the waste water valve belongs to a semi-open-close valve, in the closed state, there is still a through opening, and water can still flow out from the opening, that is, the waste water branch 130 is still in a connected state, when the pure water filter element 300 is flushed, water can flow out from the waste water branch 130 after flowing into the pure water filter element 300.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings and a specific embodiment. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, fig. 5 is a schematic structural diagram of the water purifying apparatus. Wherein, the arrow indicates the flow direction of water in the water purification branch road, and water purification unit includes: the device comprises a front filter element 200, a pure water filter element 300, a rear filter element 500, a raw water inlet branch 100, a water inlet branch 110, a water production branch 120, a wastewater branch 130, a detection assembly 400 and a controller, wherein the controller is not shown in FIG. 5, the front filter element 200 is arranged at the upstream of the pure water filter element 300, and the rear filter element 500 is arranged at the downstream of the pure water filter element 300; the pure water filter element 300 includes a reverse osmosis membrane filter element; the sensing assembly 400 includes a flow sensing member 410 and a temperature sensing member 420, the flow sensing member 410 including a flow sensor, the temperature sensing member 420 including a temperature sensor; a raw water inlet 1001 provided in the raw water inlet branch 100; a water inlet valve 1002 is arranged on the water inlet branch 110, and 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 production branch 120, the pure water port 1201 is used for controlling the on-off of the water production 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 located on the downstream of the water inlet valve 1002 and on the upstream of the pure water filter element 300, the water pump 1003 is used for pressurizing water in 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 production branch 120;
the water inlet branch 110, the water production branch 120 and the wastewater branch 130 are communicated with the pure water filter element 300; taking the example that the detection component 400 is arranged on the water production branch 120, the detection component 400 is in communication connection with the controller, the flow detection part 410 in the detection component 400 collects the purified water flow of the pure water filter element 300 in the working process of the water purification equipment and sends the purified water flow to the controller, and the temperature detection part 420 in the detection component 400 collects the water temperature in the working process of the water purification equipment and sends the water temperature to the controller;
if the water producing branch 120 is in a connected state, that is, the pure water port 1201 is in an open state, water can be supplied to the user at this time, specifically, water of the raw water inlet branch 100 flows into the pre-filter element 200, flows to the water inlet branch 110 after being filtered by the pre-filter element 200, flows into the pure water filter element 300, flows to the water producing branch 120 after being filtered by the pure water filter element 300, and flows out from the pure water port 1201;
if the water production branch 120 is in the disconnected state, that is, the pure water port 1201 is in the closed state, the pure water filter element 300 may be flushed at this time, specifically, water of the water inlet branch 110 flows into the pure water filter element 300, and directly flows out from the wastewater branch 130 after the pure water filter element 300 is subjected to filtering treatment, and at this time, the pure water filter element 300 is flushed for water after the water is subjected to filtering treatment by using the front filter element 200;
in a specific embodiment, as shown in fig. 6, which is a schematic structural diagram of the 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 returning branch 140, the water returning branch 140 is communicated with the water inlet branch 110 and the water producing branch 120, a communication position of the water returning branch 140 and the water inlet branch 110 is between the water inlet valve 1002 and the water pump 1003, and a communication position of the water returning branch 140 and the water producing branch 120 is between the detection assembly 400 and the pure water filter element 300; the water purification unit still includes: a return valve 1401 is arranged on the return branch 140, and the return valve 1401 is used for controlling the on-off of the return branch 140;
if the water producing branch 120 is in a connected state, that is, the pure water port 1201 is in an opened state, and at this time, the water returning branch 140 is in a disconnected state, that is, the return valve 1401 is in a closed state, water can be supplied to the user at this time, specifically, water of the raw water inlet branch 100 flows into the front filter element 200, flows to the water inlet branch 110 after being filtered by the front filter element 200, flows to the pure water filter element 300, flows to the water producing branch 120 and the water returning branch 140 after being filtered by the pure water filter element 300, 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 water returning branch is in a connected state, that is, the return valve 1401 is in an open state, wherein 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 time, and the preset time may be set according to actual technical requirements, at this time, the pure water filter element 300 may be flushed, specifically, if the raw water inlet 1001 is in a closed state, that is, the raw water does not enter, water in the water returning branch 140 flows out of the wastewater branch 130 after flowing into the pure water filter element 300; if the raw water inlet 1001 is in an open state, that is, the raw water continuously enters the water, the water of the water inlet branch 110 flows into the pure water filter element 300, after the pure water filter element 300 is subjected to filtering treatment, the water flows to the water return branch 140, the water of the water return branch 140 flows out of the waste water branch 130 after flowing into the pure water filter element 300, and at this time, the pure water filter element 300 is washed by the water after being subjected to filtering treatment by the pure water filter element 300.
In a specific embodiment, taking the example of flushing the pure water filter element 300, the flushing control method of the water purifying apparatus includes the following specific steps:
in the working 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 400iAnd a water temperature Ti; according to the purified water flow QAiCorrecting the obtained purified water flow by a temperature correction coefficient K corresponding to the water temperature Ti to obtain a corrected purified water flow QBi；
The calculation formula of the corrected purified water flow is as follows:
QBi＝QAi*K(Ti)
wherein, K (T)i) A temperature correction coefficient corresponding to the water temperature;
according to each purified water flow QBiDetermining the total water purification L corresponding to each water purification flowiCalculating each purified water flow QBiCorresponding average purified water flow
Figure BDA0003399109900000251
And the total water purification amount LiCorresponding average total water purification
Figure BDA0003399109900000252
The calculation formulas are respectively as follows:
Figure BDA0003399109900000253
Figure BDA0003399109900000254
determining the variation coefficient corresponding to the flow rate of the purified water, and expressing as biThe calculation formula is as follows:
Figure BDA0003399109900000255
the expected total purified water quantity E of the pure water filter element 300 is calculated and determined by the following formula:
Figure BDA0003399109900000256
wherein B represents a preset minimum value of the purified water flow of the pure water filter element 300;
the controller compares the estimated total purified water amount E with a preset maximum value F of the total purified water amount of the pure water filter element 3002And a preset minimum value F of total water purification1；
If the expected total clean water amount is less than the preset minimum total clean water amount, that is, the real-time blockage condition of the pure water filter element 300 is serious, at this time, the first flushing logic is determined as the adjusted flushing logic for flushing the pure water filter element 300, the flushing parameter in the first flushing logic includes at least one of a first flushing time, a first interval clean water amount, a first flushing pump voltage, a first flushing pump rotating speed and a first return water time period, the first flushing time period is greater than the initial flushing time period in the preset flushing logic of the pure water filter element 300, the first interval clean water amount is less than the initial interval clean 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 return water time period is greater than the initial return water amount in the preset flushing logic;
if the estimated total purified water amount is greater than the preset maximum total purified water amount, that is, the real-time blockage condition of the pure water filter element 300 is not serious, at this time, determining a second flushing logic as an adjusted flushing logic for flushing the pure water filter element 300, wherein flushing parameters in the second flushing logic include at least one of a second flushing duration, a second interval purified water amount, a second flushing pump voltage, a second flushing pump rotating speed and a second water returning duration, the second flushing duration is less than the initial flushing duration, the second interval purified water amount is greater than the initial interval purified water amount, the second flushing pump voltage is less than the initial flushing pump voltage, the second flushing pump rotating speed is less than the initial flushing pump rotating speed, and the second water returning duration is less than the initial water returning duration;
and controlling the water purifying equipment to flush the pure water filter element 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 obtaining module 710, a calculating module 720, an adjusting module 730, and a control module 740, wherein:
the obtaining module 710 is used for obtaining the purified water flow of the pure water filter element of the water purifying device in the working process of the water purifying device.
And the calculating module 720 is used for calculating and determining the expected total purified water amount of the pure 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 used for adjusting the flushing logic for flushing the pure water filter element according to the estimated total pure water amount and the preset total pure water amount threshold value of the pure water filter element, and determining the flushing logic after adjustment.
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 comprises:
a purified water flow correction unit for acquiring a water temperature in the water purification apparatus; and correcting the obtained purified water flow according to the purified water flow and the temperature correction coefficient corresponding to the water temperature to obtain the corrected purified water flow.
In one embodiment, the corrected purified water flow rate is a product of the purified water flow rate and the temperature correction coefficient corresponding to the water temperature.
In one embodiment, the calculating 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 amount corresponding to the purified water flow.
And the estimated total purified water amount calculation unit is used for calculating and determining the estimated total purified water amount of the pure water filter element according to the change coefficient, the purified water flow and the corresponding total purified water amount.
In one embodiment, the variation coefficient calculation unit includes:
and a total purified water amount determination unit for determining each total purified water amount corresponding to each purified water amount based on each purified water amount.
And the average value calculating unit is used for calculating the average purified water flow corresponding to each purified water flow and the average total purified water amount corresponding to each total purified water amount respectively.
A difference determination unit for determining a purified water flow difference between each purified water flow and the average purified water flow, and a total purified water amount difference between each total purified water amount and the average total purified water amount.
And the change coefficient determining unit is used for determining the change coefficient corresponding to the purified water flow according to each purified water flow difference value and each total purified water amount difference value.
In one embodiment, the variation coefficient corresponding to the purified water flow rate is a ratio of a product of the purified water flow rate difference and the total purified water amount difference to a sum of squares of the total purified water amount difference.
In one embodiment, the predicted total purified water amount of the pure water filter element is a ratio of a difference between the purified water flow and a preset purified water flow minimum value of the pure water filter element and the variation coefficient, and a sum of total purified water amounts corresponding to the purified water flow.
In one embodiment, the adjusting module 730 includes:
and the comparison unit is used for comparing the estimated total purified water quantity with a preset total purified water quantity threshold value of the pure water filter element, and the preset total purified water quantity threshold value comprises a preset total purified water quantity minimum value and a preset total purified water quantity maximum value.
A first adjusting unit, configured to determine a first flushing logic as the adjusted flushing logic for flushing the pure water filter element when the expected total purified water amount is less than the preset total purified water amount minimum value, where a flushing parameter in the first flushing logic includes at least one of a first flushing duration, a first interval purified water amount, a first flushing pump voltage, a first flushing pump rotational speed, and a first flushing return duration, where the first flushing duration is greater than an initial flushing duration in the preset flushing logic of the pure water filter element, and/or the first interval purified water amount is less than an initial interval purified water amount 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 water return time length is greater than the initial water return time length in the preset flushing logic.
And the second adjusting unit is used for determining a second flushing logic as the adjusted flushing logic for flushing the pure water filter element when the estimated total purified water amount is greater than the preset maximum total purified water amount, wherein the flushing parameters in the second flushing logic comprise at least one of a second flushing time length, a second interval purified water amount, a second flushing pump voltage, a second flushing pump rotating speed and a second water returning time length, the second flushing time length is less than the initial flushing time length, 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 rotating speed is less than the initial flushing pump rotating speed, and/or the second water returning time length is less than the initial water returning time length.
For specific limitations of the flush control device of the water purifying apparatus, reference may be made to the above limitations of the flush control method of the water purifying apparatus, which will not be described herein again. All or part of each module in the flushing control device of the water purifying equipment can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the electronic device, or can be stored in a memory in the electronic device in a software form, so that the processor can call and execute operations corresponding to the 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 equipment comprises 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 an operating system and computer programs in the non-volatile storage medium. The communication interface of the electronic device is used for carrying out wired or wireless communication with external control equipment, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a flush control method of a water purification apparatus.
In one embodiment, the electronic device further comprises a display screen and an input device. The display screen of the electronic device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic device may be a touch layer covered on the display screen, or a key, a trackball or a touch pad arranged on a housing of the electronic device.
Those skilled in the art will appreciate that the structure shown in fig. 8 is a block diagram of only a portion of the structure relevant to the present disclosure, and does not constitute a limitation on the electronic device to which the present disclosure may be applied, and that a particular electronic device may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
In one embodiment, an electronic device is provided, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the flushing control method of the water purifying device when executing the computer program.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the above-mentioned flushing control method of a water purification device.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (15)

1. A method of controlling flushing of a water purification apparatus, the method comprising:
in the working process of the water purifying equipment, acquiring the purified water flow of a purified water filter element of the water purifying equipment;
calculating and determining the estimated total purified water amount of the pure water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow;
adjusting the flushing logic for flushing the pure water filter element according to the estimated total purified water amount and a preset total purified water amount threshold value of the pure water filter element, and determining the adjusted flushing logic;
and controlling the water purification equipment to flush the pure water filter element according to the adjusted flushing logic.
2. The method of claim 1, wherein after the obtaining of the purified water flow rate of the pure water filter element of the water purification apparatus, before the calculating and determining the expected total purified water amount of the pure 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 purification equipment;
and correcting the obtained purified water flow according to the purified water flow and the temperature correction coefficient corresponding to the water temperature to obtain the corrected purified water flow.
3. The method for controlling flushing of a water purification apparatus according to claim 1, wherein the calculating and determining a predicted total purified water amount of the pure water filter element based on the purified water flow rate and a total purified water amount corresponding to the purified water flow rate includes:
determining a variation coefficient corresponding to the purified water flow based on the purified water flow and a total purified water amount corresponding to the purified water flow;
and calculating and determining the estimated total purified water amount of the pure water filter element according to the change coefficient, the purified water flow and the corresponding total purified water amount.
4. The method of claim 3, wherein the determining the variation coefficient corresponding to the purified water flow rate based on the purified water flow rate and the total purified water amount corresponding to the purified water flow rate comprises:
determining each total water purification amount corresponding to each water purification amount based on each water purification amount;
respectively calculating the average purified water flow corresponding to each purified water flow and the average total purified water amount corresponding to each total purified water amount;
determining a net water flow difference between each net water flow and the average net water flow, and a total net water amount difference between each total net water amount and the average total net water amount;
and determining a change coefficient corresponding to the purified water flow according to each purified water flow difference value and each total purified water amount difference value.
5. The method for controlling flushing of a water purification apparatus of claim 1, wherein the adjusting the flushing logic for flushing the pure water filter element according to the predicted total pure water amount and the preset total pure water amount threshold of the pure water filter element, and determining the adjusted flushing logic comprises:
comparing the estimated total purified water quantity with a preset total purified water quantity threshold value of the pure water filter element, wherein the preset total purified water quantity threshold value comprises a preset total purified water quantity minimum value and a preset total purified water quantity maximum value;
if the estimated total purified water amount is smaller than the preset total purified water amount minimum value, determining a first flushing logic as the adjusted flushing logic for flushing the pure water filter element, wherein a flushing parameter in the first flushing logic comprises 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 water returning duration, the first flushing duration is longer than an initial flushing duration in the preset flushing logic of the pure water filter element, and/or the first interval purified water amount is smaller than an initial interval purified water amount 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 water return time length is longer than the initial water return time length in the preset flushing logic;
if the estimated total purified water amount is larger than the preset maximum total purified water amount, 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 length, a second interval purified water amount, a second flushing pump voltage, a second flushing pump rotating speed and a second water returning time length, the second flushing time length is smaller than the initial flushing time length, and/or the second interval purified water amount is larger than the initial interval purified water 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 water returning time length is smaller than the initial water returning time length.
6. A flushing control device for a water purification unit, the device comprising:
the acquisition module is used for acquiring the purified water flow of a purified water filter element of the water purifying equipment in the working process of the water purifying equipment;
the calculation module is used for calculating and determining the estimated total purified water quantity of the pure water filter element based on the purified water flow and the total purified water quantity 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 estimated total purified water amount and a preset total purified water amount threshold value of the pure water filter element and determining the adjusted flushing logic;
and the control module is used for controlling the water purification equipment to flush the pure water filter element according to the adjusted flushing logic.
7. An electronic device comprising a memory and a processor, the memory storing a computer program, wherein 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 5.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the flushing control method of a water purification device of any one of claims 1 to 5.
9. A water purification unit, its characterized in that, water purification unit includes: the device comprises a pure water filter element, a detection assembly, a washing adjustment assembly and a controller;
the detection assembly is in communication connection with the controller, and the flushing regulation assembly is in communication connection with the controller; in the working process of the water purifying equipment, the detection assembly collects the purified water flow of the pure water filter element and transmits the collected purified water flow to the controller;
the controller acquires the flow of the purified water; calculating and determining the estimated total purified water amount of the pure water filter element based on the purified water flow and the total purified water amount corresponding to the purified water flow; adjusting the flushing logic for flushing the pure water filter element according to the estimated total purified water amount and a preset total purified water amount threshold value of the pure water filter element, and determining the adjusted flushing logic; and controlling the washing adjusting assembly of the water purifying equipment to wash the pure water filter element according to the adjusted washing logic.
10. The water purification apparatus of claim 9, wherein the detection assembly comprises: a flow rate detecting member;
the flow detection piece collects the purified water flow and transmits the collected purified water flow to the controller.
11. The water purification apparatus of claim 9, wherein the detection assembly further comprises: a temperature detection member;
the temperature detection piece collects the water temperature in the water purification equipment and transmits the collected water temperature to the controller;
and the controller corrects the obtained purified water flow according to the purified water flow and the temperature correction coefficient corresponding to the water temperature to obtain the corrected purified water flow.
12. The water purification apparatus of claim 9, wherein the controller determines a first flush logic as the flush logic of the flush adjustment assembly when the expected total clean water amount is less than a preset total clean water amount minimum value of the pure water filter element, wherein the flush parameters in the first flush logic include at least one of a first flush duration, a first interval clean water amount, a first flush pump voltage, a first flush pump rotational speed, and a first return water duration, wherein the first flush duration is greater than an initial flush duration in the preset flush logic of the pure water filter element, and/or wherein the first interval clean water amount is less than an initial interval clean water 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 rotational speed is greater than an initial flush pump rotational speed in the preset flush logic, and/or the first water return time length is greater than the initial water return time length in the preset flushing logic.
13. The water purification apparatus of claim 9, wherein the controller determines a second flush logic as the flush logic of the flush adjustment assembly when the expected total purified water amount is greater than a preset total purified water amount maximum value of the pure water filter cartridge, the flushing parameters in the second flushing logic comprise at least one of a second flushing duration, a second interval purified water quantity, a second flushing pump voltage, a second flushing pump rotating speed and a second water return duration, the second flushing duration is shorter than the initial flushing duration, and/or the second interval net water amount is larger than the initial interval net water amount, and/or the second flush pump voltage is smaller than the initial flush pump voltage, and/or the rotating speed of the second flushing pump is less than that of the initial flushing pump, and/or the second water return time length is less than the initial water return time length.
14. The water purification apparatus of claim 9, wherein the flush adjustment assembly comprises: the water pump is arranged on a water inlet branch of the pure water filter element, and the waste water valve is arranged on a waste water branch of the pure water filter element.
15. The water purification apparatus of claim 14, wherein the flush adjustment assembly comprises: the water pump is arranged on a water inlet branch of the pure water filter element, the waste water valve is arranged on a waste water branch of the pure water filter element, the return water branch is communicated with the water inlet branch and the water production branch of the pure water filter element, and the return valve is arranged on the return water branch.
CN202111493001.0A 2021-12-08 2021-12-08 Flushing control method and device of water purifying equipment, electronic equipment and water purifying equipment Active CN113979493B (en)

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