CN112299510A - Water purifier, water purification system and control method thereof - Google Patents
Water purifier, water purification system and control method thereof Download PDFInfo
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- CN112299510A CN112299510A CN202011139093.8A CN202011139093A CN112299510A CN 112299510 A CN112299510 A CN 112299510A CN 202011139093 A CN202011139093 A CN 202011139093A CN 112299510 A CN112299510 A CN 112299510A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 673
- 238000000746 purification Methods 0.000 title claims abstract description 156
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 158
- 238000004140 cleaning Methods 0.000 claims abstract description 121
- 239000008213 purified water Substances 0.000 claims abstract description 76
- 238000001914 filtration Methods 0.000 claims abstract description 69
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000005406 washing Methods 0.000 claims description 71
- 239000010865 sewage Substances 0.000 claims description 15
- 238000011045 prefiltration Methods 0.000 claims description 11
- 238000010926 purge Methods 0.000 claims description 11
- 230000001186 cumulative effect Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 16
- 238000011010 flushing procedure Methods 0.000 abstract description 14
- 239000012535 impurity Substances 0.000 description 9
- 239000012528 membrane Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001471 micro-filtration Methods 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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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
- C02F1/001—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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
- C02F2303/14—Maintenance of water treatment installations
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a water purifier, a water purification system and a control method thereof. The water storage part is connected with the filtering part. The driving piece is connected with the filtering piece and the water storage piece, and the driving piece is used for respectively inputting the water flow of an external water source into the filtering piece and the water storage piece. The water purifying switch is located on the path of the purified water flow from the driving member to the filter member. The pressurizing member is located on a path of the cleaning water flow from the driving member to the water storage member and/or on a path of the cleaning water flow from the water storage member to the filter member. The flow monitoring piece is positioned on the path of the purified water flow and used for acquiring the actual flow parameter of the purified water flow. The cleaning switch is positioned on a path of the cleaning water flow from the water storage part to the filter part, and the cleaning switch is configured to be opened when the actual flow parameter is less than or equal to the preset flow parameter. The water purifier, the water purification system and the control method thereof have a good flushing effect.
Description
Technical Field
The invention relates to the technical field of water purification, in particular to a water purifier, a water purification system and a control method of the water purifier.
Background
Be provided with the filter core in the purifier, at the in-process of rivers flow through the filter core, the filter core can be to impurity such as silt, suspended solid, colloid, bacterium that contain in the rivers intercept to obtain the water purification. In areas with poor water quality where the impurity content is high, the filter element is easily blocked by the impurities. Among the prior art, in order to guarantee that the filter core normally works, the filter core is washed to the discontinuity, and nevertheless the washing effect is relatively poor, and the problem of filter core jam still exists.
Disclosure of Invention
Therefore, it is necessary to provide a water purifier having a better washing effect on the filter element, a water purification system and a control method thereof.
A water purification system, the water purification system comprising:
a filter member;
the water storage part is connected with the filtering part;
the driving piece is connected with the filtering piece and the water storage piece and is used for respectively inputting the water flow of an external water source into the filtering piece and the water storage piece;
a water purification switch located on a path of purified water flowing from the driving member to the filter member;
a pressurizing member located on a path of the washing water flowing from the driving member into the water storage member and/or on a path of the washing water flowing from the water storage member to the filter member;
the flow monitoring piece is positioned on the path of the purified water flow and is used for acquiring the actual flow parameter of the purified water flow; and
a purge switch located on a path of the purge water flow from the water storage member to the filter member, the purge switch configured to open when the actual flow parameter is less than or equal to a preset flow parameter.
In one embodiment, the cleaning device further comprises a controller, the controller is electrically connected with the flow monitoring part, the driving part, the water purification switch and the cleaning switch, and the controller is used for controlling the driving part and the water purification switch to be closed and controlling the cleaning switch to be opened when the actual flow parameter is less than or equal to the preset flow parameter.
In one embodiment, the cleaning switch includes a cleaning valve and a check valve, and the cleaning valve and the check valve are sequentially arranged along a flow direction of the cleaning water flowing from the water storage part to the filtering part.
In one embodiment, the cleaning switch is a check valve.
In one embodiment, the pressurizing member is located on a path of the flow of the washing water from the driving member into the water storage member.
In one embodiment, the pressurizing member is a pressure maintaining valve capable of automatically pressurizing.
In one embodiment, the filter piece is provided with a drain outlet, the drain pipe is connected to the drain outlet and communicated with the drain outlet, and the drain switch is used for controlling the on-off of the drain pipe.
In one embodiment, the system further comprises a pre-filter positioned in an incoming water flow path from the external water source to the drive member, the pre-filter being configured to filter the incoming water flow.
In one embodiment, the secondary filter element is positioned in the path of the purified water stream for filtering the purified water stream.
A water purifier comprises the water purifier.
A control method of a water purification system comprises the following steps:
s100: inputting purified water flow into the filter element, and inputting cleaning water flow into the water storage element and storing the cleaning water flow;
s200: acquiring an actual flow parameter of the purified water flow;
s300: if the actual flow parameter is larger than the preset flow parameter, continuing to execute the steps S100 and S200;
s400: if the actual flow parameter is less than or equal to a preset flow parameter, stopping water delivery to the filter element and the water storage element, and inputting the cleaning water flow stored in the water storage element into the filter element to flush the filter element; and
s500: pressurizing the flow of washing water before it flows into the water storage member and/or after it flows out of the water storage member and before it flows into the filter member.
In one embodiment, the method further includes step S600: and discharging the sewage formed after cleaning the filter element outwards.
In one embodiment, in step S500, the pressure applied to the washing water flow is increased as the cumulative time of the purified water flow input is prolonged.
In one embodiment, after the step S100 and before the step S200, the method further includes a step S700: inputting the cleaning water flow stored in the water storage member into the filter member at preset time intervals to intermittently wash the filter member.
In one embodiment, the water purification system includes an off state and a water purification state, and further includes a step S800 after the step S100 and before the step S200: when the water purification system is switched to the water purification state from the closed state, the cleaning water flow stored in the water storage part is input into the filtering part to flush the filtering part.
In one embodiment, the method further includes the step S900 of recording an action time point of the purified water flow input into the filter element, the action time point having a corresponding natural time point, after the step S100 and before the step S200: inputting the cleaning water flow stored in the water storage member into the filter member at the natural time point to wash the filter member.
When the water purification system is used for purifying water, the driving piece and the water purification switch are turned on, the cleaning switch is turned off, and water flow of an external water source is input to the filtering piece under the action of the driving piece; meanwhile, water flow can flow into the water storage part from the driving part for storage; when the actual flow parameter that acquires when flow monitoring spare is less than or equal to predetermineeing the flow parameter, driving piece and water purification switch are closed, and the washing switch is opened, and under the effect of pressurization piece, the rivers that flow into to filtering in the piece by water storage spare have great pressure, can effectively wash the impurity in filtering for filter has better washing effect.
Drawings
FIG. 1 is a schematic diagram of a water purification system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a water purification system according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of the filter life and flushing pressure of the present invention as a function of the operating time of the drive member;
FIG. 4 is a schematic diagram of a water purification system in accordance with yet another embodiment of the present invention;
FIG. 5 is a schematic view of a water purification system according to yet another embodiment of the present invention;
FIG. 6 is a schematic view of a water purification system according to yet another embodiment of the present invention;
FIG. 7 is a schematic flow chart illustrating a method for controlling a water purification system according to an embodiment of the present invention;
FIG. 8 is a schematic flow chart illustrating a method for controlling a water purification system according to another embodiment of the present invention;
FIG. 9 is a schematic flow chart illustrating a method for controlling a water purification system according to another embodiment of the present invention;
FIG. 10 is a schematic flow chart illustrating a method for controlling a water purification system according to still another embodiment of the present invention;
FIG. 11 is a schematic flow chart illustrating a method for controlling a water purification system according to another embodiment of the present invention;
fig. 12 is a schematic flow chart illustrating a control method of a water purification system according to another embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to 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 the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, 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 invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 and 6, the present invention discloses a water purifier, which includes a water purifying system 10, wherein the water purifying system 10 can be used for preparing purified water. The water purification system 10 includes a filter member 110, a driving member 120, a water purification switch 140, a water storage member 150, a pressurizing member 180, a flow rate monitoring member 270, and a cleaning switch 190. The driving member 120 is connected to the filtering member 110 and the water storage member 150, the driving member 120 is used for inputting the water flow of the external water source into the filtering member 110 and the water storage member 150, the water purifying switch 140 is located on the path of the purified water flow flowing from the driving member 120 to the filtering member 110 and is used for controlling the on-off of the purified water flow, the water storage member 150 is used for storing the cleaning water flow flowing from the driving member 120, and the water storage member 150 is connected to the filtering member 110. The pressurizing member 180 is located on a path of the washing water flowing from the driving member 120 into the water storage member 150 and/or on a path of the washing water flowing from the water storage member 150 to the filter member 110, for pressurizing the washing water flowing therethrough. The flow monitor 270 is positioned in the path of the purified water flow for obtaining an actual flow parameter of the purified water flow. The cleaning switch 190 is located on a path of the cleaning water flow from the water storage member 150 to the filter member 110, and the cleaning switch 190 is configured to be turned on when the actual flow parameter is less than or equal to the preset flow parameter.
Specifically, the filter element 110 includes a housing and a filter body, the housing has an inner cavity, the filter body is accommodated in the inner cavity and separates the inner cavity into a water inlet cavity and a purification cavity which are communicated with each other, and the housing is provided with a water inlet 111 communicated with the water inlet cavity and a water outlet 113 communicated with the purification cavity. The water purifying system 10 further includes a water purifying pipe 130, the driving member 120 has a water inlet end and a water outlet end, the water inlet end of the driving member is communicated with an external water source, the water purifying pipe 130 is connected to the water inlet 111 and is communicated with the water inlet 111 and the water outlet end of the driving member 120, the driving member 120 drives the water flow of the external water source to enter the water inlet cavity through the water purifying pipe 130, the water flow directly flowing into the water inlet cavity from the driving member 120 is defined to be referred to as purified water flow, and in the process that the purified water flow flows through the filter body, the filter body intercepts impurities such as silt, suspended matters, colloid, bacteria and the like contained in the. The purified water flows out of the outlet 113 of the filter element 110. The purified water switch 140 is coupled to the purified water pipe 130 for controlling the on/off of the purified water flow.
The water purification system 10 further includes a water inlet pipe 160 and a water outlet pipe 170. The water storage member 150 has a water storage cavity 151, and the water inlet tube 160 is connected to the purified water tube 130 and the water storage cavity 151, so that the water flowing out from the water outlet end of the driving member 120 can flow into the water storage cavity 151 through the purified water tube 130 and the water inlet tube 160 for storage, and the water flowing into the water storage cavity 151 through the purified water tube 130 and the water inlet tube 160 from the driving member 120 is defined as a cleaning water flow, and the cleaning water flow and the purified water flow are different. In one embodiment, the water outlet pipe 170 is connected to the water storage chamber 151 and the water purifying pipe 130, and the cleaning switch 190 is coupled to the water outlet pipe 170 for controlling the on/off of the water outlet pipe 170. When the filter body in the filter element 110 is clogged, the washing water stored in the water storage chamber 151 flows into the filter element 110 through the water outlet pipe 170 and the purified water pipe 130 to wash the filter body in a forward direction. In another embodiment, the water outlet pipe 170 is connected to the water storage cavity 151 and the water outlet 113, and the cleaning water stored in the water storage cavity 151 flows through the water outlet pipe 170 from the water outlet 113 into the filter element 110, and the filter body is backwashed in a direction from the purification cavity to the water inlet cavity. The following embodiments are described by taking the example that the water outlet pipe 170 is communicated with the water storage cavity 151 and the purified water pipe 130.
The pressurizing member 180 is located on a storage water flow path from the driving member 120 into the storage chamber 151 and/or on a cleaning water flow path from the storage chamber 151 to the filter member 110, for pressurizing a cleaning water flow passing through the pressurizing member 180. Specifically, if the pressurizing member 180 is located on the path of the washing water flow flowing from the driving member 120 into the water storage member 150, the pressurizing member 180 pressurizes the washing water flow before the washing water flow flows into the water storage member 150; if the pressurizing member 180 is located on the path of the washing water flowing from the water storage member 150 toward the filter member 110, the pressurizing member 180 pressurizes the washing water before the washing water flows out of the water storage member 150 and into the filter member 110; if the pressurizing member 180 is located on the path of the washing water flowing from the driving member 120 into the water storage member 150 and on the path of the washing water flowing from the water storage member 150 to the filter member 110, the pressurizing member 180 pressurizes the washing water before the washing water flows into the water storage member 150 and before the washing water flows out of the water storage member 150 and flows into the filter member 110.
The flow monitoring member 270 is used for acquiring the actual flow parameter of the purified water flow, and when the actual flow parameter is less than or equal to the preset flow parameter, the cleaning switch 190 is turned on, the pressurized cleaning water flow flows into the water inlet cavity to clean the filtering body, and the cleaning and dredging effects are good, so that the service life of the filtering member 110 is prolonged. It can be understood that the actual flow parameter obtained by the flow monitoring element 270 reflects the clogging condition of the filter body, and specifically, if the filter body is relatively smooth, the purified water flow has a relatively large flow rate, and the actual flow parameter is also relatively large; if the filter body is seriously blocked, the flow of the purified water flow is small, and the actual flow parameter is also small.
Above-mentioned purifier and water purification system 10, through setting up flow monitoring piece 270 and pressure piece 180, flow monitoring piece 270 carries out real time monitoring to purifying rivers to in time learn the jam condition of filtering the body, and pressure piece 180 pressurizes the washing rivers, can let in the washing rivers that have great pressure to filtering in 110 when filtering the body and need washing, make whole water purification system 10 can in time effectually wash filtering the body, have better washing effect. In particular, the amount of the solvent to be used,
specifically, the water purification system 10 includes a water purification state, a water storage state, a cleaning state, and a shut-down state. When the water purification system 10 is in the water purification state, the driving member 120 and the water purification switch 140 are turned on, the cleaning switch 190 is turned off, and the purified water flows into the water inlet cavity through the driving member 120 and the water purification pipe 130, and flows out of the water purification cavity after being filtered by the filter body. Meanwhile, the water purification system 10 can be used for water purification and water storage, and particularly, the cleaning water flows into the water storage chamber 151 through the water inlet pipe 160 to be stored. Of course, when the water storage amount in the water storage cavity 151 reaches the preset water storage amount, the water storage cavity 151 stops to supply water, the water storage state stops, and the water purification system 10 is only in the water purification state. In the process of purifying water in the water purification system 10, the flow monitoring element 270 always detects the actual flow parameter of the purified water flow, and when the actual flow parameter of the purified water flow is less than or equal to the preset flow parameter, the water purification system 10 can be further used for cleaning the filtering element 110, specifically, the driving element 120 and the water purification switch 140 are turned off, the cleaning switch 190 is turned on, the water purification system 10 is switched from the water purification state to the cleaning state, and the cleaning water stored in the water storage cavity 151 flows into the filtering element 110 through the water outlet pipe 170 to flush the filtering body. After the water purification system 10 completes water purification, water storage and cleaning, the driving member 120, the water purification switch 140 and the cleaning switch 190 are turned off, and the water purification system 10 is switched to the off state.
It should be noted that, in the process of each time the water purification system 10 is switched from the water purification state to the off state, the water purification system 10 may also experience the water storage state, the cleaning state, or may also experience the water storage state and the cleaning state in sequence, or may also experience the cleaning state and the water storage state in sequence. For example, if the water amount in the water storage cavity 151 is sufficient and the actual flow parameter detected by the flow monitoring element 270 is less than or equal to the preset flow parameter during the water purification process of the water purification system 10, the water purification system 10 is directly switched from the water purification state to the cleaning state; or, if the water amount in the water storage cavity 151 is insufficient and the actual flow parameter is greater than the preset flow parameter in the water purification process, the water purification system 10 is in the water purification state and the water storage state at the same time, and is directly switched to the closed state after the water purification is finished; or, if the water amount in the water storage cavity 151 is sufficient and the flow detecting element 270 detects that the actual flow parameter is smaller than or equal to the preset flow parameter during the water purification process of the water purification system 10, the water purification system 10 is directly switched from the water purification state to the cleaning state to clean the filter body. If water still needs to be purified after the cleaning is finished, the water purification system 10 is switched to a water purification state and a water storage state after the cleaning state is finished; if no clean water is needed after the cleaning, the water purification system 10 is directly switched from the cleaning state to the closed state, but the water storage member 150 needs to store water when the clean water is started next time.
Referring again to fig. 1 and also to fig. 2, in one embodiment, after a single flush of the filter element 110, the amount of water in the water reservoir 150 decreases, resulting in a lower pressure of the cleaning water flowing from the water reservoir 150 to the filter element 110. At this time, if the filtering body is not completely flushed, the cleaning switch 190 can be closed again, the driving member 120 is opened, the driving member 120 inputs the cleaning water flow into the water storage member 150, the water amount in the water storage member 150 is increased, the water pressure is also increased accordingly, and then the filtering body is flushed again, so that the filtering member 110 has a better flushing effect. Of course, the number of times of pressurizing the inside of the water storage member 150 and the number of times of cleaning the filter member 110 may be one or more times, specifically, the inside of the water storage member 150 may be repeatedly pressurized and then cleaned by the filter member 110, or the pressurizing inside the water storage member 150 and the cleaning by the filter member 110 may be alternately and cyclically switched. In addition, during the pressurization of the water storage 150, the output pressure of the driving member 120 and the pressurizing member 180 may be maintained, or the output pressure of at least one of the driving member 120 and the pressurizing member 180 may be increased. In addition, during the pressurization of the water storage 150, the water purification switch 140 is turned on or off according to different settings. Taking fig. 1 as an example, the water purifying switch 140 is located between the water inlet pipe 160 and the water outlet pipe 170, and in the present embodiment, during the process of pressurizing the water storage member 150, the water purifying switch 140 is turned off; taking fig. 2 as an example, the water purifying switch 140 is located between the driving member 120 and the water inlet pipe 160, and in this embodiment, the water purifying switch 140 is turned on during the process of pressurizing the water storage member 150.
Alternatively, the filter body in the filter element 110 may be one or more of an RO membrane, a nanofiltration membrane, an ultrafiltration membrane, and a microfiltration membrane. Alternatively, the water purifying switch 140 and the cleaning switch 190 may be solenoid valves, electric valves, or the like. Alternatively, the driving member 120 may be a stabilized pressure pump, a booster pump, a vane pump, a self-priming pump, etc. having a forward and reverse flow direction and adjustable frequency. Alternatively, the pressure applying member 180 may be a pressure maintaining valve with an adjustable or non-adjustable range, and the pressure range is 0.1MP to 0.8 MP. Alternatively, the pressurizing member 180 may be an automatically pressure-adjustable pressure-stabilizing valve or a variable-frequency pressure-stabilizing valve. Alternatively, the water storage member 150 may be spherical, cylindrical, square, or irregular, and have a volume of 0 to 5L. Alternatively, the water storage member 150 may be a single member or a plurality of members, and if the number of the members is a plurality, the plurality of water storage members 150 may be sequentially connected in series between the water inlet pipe 160 and the water outlet pipe 170, or respectively connected in parallel between the water inlet pipe 160 and the water outlet pipe 170. The water storage member 150 may be a pressure tank having a pressure stabilizing function, or may be a common water storage member 150 not having a pressure maintaining function, if the water storage member 150 is the common water storage member 150, the pressurizing member 180 at least needs to be disposed on the water outlet pipe 170, and if the water storage member 150 is the pressure tank, the pressurizing member 180 may be disposed on the water inlet pipe 160 and/or the water outlet pipe 170.
Referring also to fig. 3, in one embodiment, the pressurizing member 180 is a pressure maintaining valve capable of automatically pressurizing. Since the clogging of the filtering element 110 will be more serious as the service life of the driving element 120 increases, in order to achieve better washing effect, the output pressure of the pressure member 180 can be automatically increased by the pressure member 180 as the service life of the driving element 120 increases, so that the water flowing through the pressure member 180 has a larger washing pressure, and the filtering element 110 can be better washed, so as to prolong the service life of the filtering element 110. For example, assume that during the period of time when the driver 120 is operating from 0 to t1, the pressure member 180 gradually increases the output pressure from 0.1MP to 0.25 MP; when the driver 120 is operated in the range of t1 to t2, the pressure member 180 gradually increases the output pressure from 0.25MP to 0.35MP, t1< t 2. Referring to fig. 3, the X coordinate direction in fig. 3 is the operation time of the driving element 120, the y coordinate direction is the flushing pressure value or the flow value, the curve a is the flushing pressure increasing curve, and the curve b is the life attenuation curve of the filtering element 110, as shown in fig. 3, as the operation time of the driving element 120 increases, the flushing pressure of the water flow gradually increases, the life attenuation of the filtering element 110 gradually decreases, that is, as the output pressure of the pressurizing element 180 gradually increases, the flushing pressure of the cleaning water flow is higher, so that the filtering element 110 can be flushed more effectively, the blockage of the filtering element 110 is prevented, and the service life of the filtering element 110 is prolonged.
In one embodiment, the pressurizing member 180 is located on a path of the washing water flowing from the driving member 120 into the water storage member 150. Specifically, the pressurizing member 180 is connected in series to the water inlet pipe 160, and the stored water flows through the water inlet pipe 160 by the driving member 120, and the pressure of the stored water increases through the pressurizing member 180, and then the stored water flows into the pressure tank for storage. The pressurizing member 180 is located on a path of the storage water flowing from the driving member 120 to the water storage chamber 151, the pressurizing member 150 pressurizes the storage water flow in advance before the water storage member 150 stores water, and the water storage member 150 is set as a pressure tank having a good pressure maintaining function, so that the pressure of the water stored in the pressure tank can maintain a stable high pressure. When cleaning is required, the water reservoir 150 can react quickly to facilitate effective and quick rinsing of the filter body.
In one embodiment, the cleaning switch 190 includes a cleaning valve 191 and a check valve 193, and the cleaning valve 191 and the check valve 193 are sequentially arranged along a flow direction of the cleaning water flowing from the water storage member 150 to the filtering member 110. Specifically, the purge valve 191 and the check valve 193 are connected in series to the water outlet pipe 170 in sequence. Alternatively, the cleaning valve 191 may be a one-way valve or a two-way valve, and the check valve 193 is a one-way valve, so that the cleaning water flowing out of the water storage member 150 can only flow into the filter member 110 along the water outlet pipe 170. By providing the check valve 193, it is possible to prevent the washing water from flowing backward into the water storage chamber 151 and affecting the water quality in the water storage chamber 151 in the washing process.
In one embodiment, the purge switch 190 may also be only the check valve 193. Therefore, the number of valves can be effectively reduced, and the production cost of the water purification system 10 can be reduced conveniently.
In an embodiment, the water purification system 10 further includes a controller electrically connected to the flow monitoring unit 270, the driving unit 120, the water purification switch 140 and the cleaning switch 190, wherein the controller is configured to control the driving unit 120 and the water purification switch 140 to be turned off and the cleaning switch 190 to be turned on when the actual flow parameter is less than or equal to the preset flow parameter. Specifically, the on and off of the driving member 120, the water purifying switch 140 and the cleaning switch 190 are controlled by the controller. When the water purification system 10 is in the water purification state and the water storage state, the controller controls the driving member 120 and the water purification switch 140 to be turned on, and controls the cleaning switch 190 to be turned off; when the water purification system 10 is in the cleaning state, the controller controls the driving member 120 and the water purification switch 140 to be turned off, and controls the cleaning switch 190 to be turned on. Through setting up the controller, water purification system 10 can be automatically in the water purification state, wash the state, switch between the water storage state for water purification system 10 is more intelligent.
In one embodiment, the pressure member 180 is electrically connected to a controller that controls the pressure member 180 to automatically pressurize as the usage time increases.
In one embodiment, the controller controls the driving member 120 and the clean water switch 140 to be turned off at a timing, and controls the cleaning switch 190 to be turned on at a timing, so as to perform a regular washing of the filter body. For example, after the water purification system 10 accumulates purified water for t3 (e.g., 1 hour), the controller controls the water purification system 10 to switch to the cleaning state, the cleaning water in the water storage chamber 151 flows out and washes the filter body for t4 (e.g., 0 to 60S), and then the controller controls the water purification system 10 to switch to the closed state, or to the purified water state and/or the water storage state. The washing method has short washing time and better washing effect.
In addition, when water purification system 10 was in the off-state, the one side of filtering the body towards the intake antrum and filtered the body and purified the one side ion concentration difference increase in chamber, led to the ion diffusion of the intracavity higher concentration of intaking to purifying the intracavity, and when the user used water purification system 10, the conductivity of first cup pure water improved, and quality of water is relatively poor, caused relatively poor user experience. In the present application, the controller may also record and describe the user's water usage habits based on the usage of the driving member 120 or other components within the water purification system 10 at natural time, and then clean the filter element 110 before the user uses water to solve the problem of high conductivity in the first cup of water. For example, after the water purification system 10 has been used for a period of time, the controller records that the user generally uses water at 8 am and 4 pm, and then the controller will control the water purification system 10 to flush the filter body at these two points in time. Alternatively, the controller may control the water purification system 10 to switch to the cleaning state at the moment when the flow detecting element 270 or the driving element 120 is activated, and perform a short-time (e.g. 10s) washing on the filter body, so as to reduce the difference in ion concentration between the two sides of the filter body, and thus reduce the conductivity of the first cup of water.
In an embodiment, the water purification system 10 further includes a drain switch 220 and a drain pipe 230, a drain opening is formed on the filtering member 110, the drain pipe 230 is coupled to the drain opening and is communicated with the drain opening, and the drain switch 220 is used for controlling the on-off of the drain pipe 230. Specifically, blow off pipe 230 and intake antrum intercommunication through setting up blow off pipe 230 and blowdown switch 220, sewage and impurity of the intracavity of intaking after the discharge washing that can be timely to prevent that sewage and impurity from being detained in the intracavity of intaking and breeding the bacterium. It should be noted that, in this embodiment, while the sewage is discharged from the sewage discharge pipe 230, the purified water flowing from the water inlet 111 can also flush the water inlet cavity, so that the sewage discharge effect in the water inlet cavity is better.
Alternatively, the drain switch 220 may be a solenoid valve and connected to the controller. The controller controls the drain switch 220 to be turned on when the water purification system 10 is in a cleaning state, and turned off when in a water purification state, a water storage state, and a pressurization state.
In one embodiment, the water purification system 10 further includes a pre-filter 240, the pre-filter 240 being positioned in an incoming water flow path from an external source to the drive member 120, the pre-filter 240 being configured to filter the incoming water flow. Specifically, the pre-filter 240 performs a preliminary filtering of the incoming water flow from the external source and then enters the driving member 120. It should be noted that the input water flow in this embodiment is the same flow as the purified water flow mentioned above.
In one embodiment, the water purification system 10 further includes a secondary filter 260, the secondary filter 260 being positioned in the flow path of the purified water stream for filtering the purified water stream. Specifically, water flowing from the water outlet end of the drive member 120 flows through the secondary filter 260, where it is filtered and then flows into the filter 110. The secondary filter 260 may re-filter the water flowing from the pre-filter 240 to provide a cleaner water flow into the filter 110.
Alternatively, the pre-filter 240 and the secondary filter 260 may be one or more of a PP cotton filter cartridge, an activated carbon filter cartridge, a PAC filter cartridge, an ultrafiltration membrane filter cartridge, a microfiltration membrane filter cartridge, or the like.
In one embodiment, the water purification system 10 further comprises an aftertreatment member 250, the filter element 110 has a water outlet 113, and the aftertreatment member 250 is in communication with the water outlet 113 through a connection pipe. The purified water filtered by the filter element 110 flows out of the water outlet 113, and flows into the post-treatment element 250 through the communication pipe for subsequent treatment (such as filtering and sterilizing) and then is output for the user.
Alternatively, the post-treatment member 250 may be one or more of an activated carbon filter element, a combined ultrafiltration membrane and carbon filter element, and a combined microfiltration membrane and carbon filter element.
The specific operation of the water purification system 10 in 5 embodiments that can exist in the present invention will be described in detail below.
Referring to fig. 1, the direction of the arrow in fig. 1 is the flowing direction of the purified water flow in the present embodiment. In this embodiment, the water purifying pipe 130 is divided into two parts, one part is connected between the water outlet end and the secondary filter 260, and the other part is connected between the secondary filter 260 and the filter 110, when the water purifying system 10 is in a water purifying state, the driving element 120 and the water purifying switch 140 are turned on, the cleaning switch 190 and the water discharging switch are turned off, and the water of the external water source flows out through the pre-filter 240, the driving element 120, the secondary filter 260, the water purifying switch 140, the filter 110 and the post-processing element 250 for the user to use; when the water purification system 10 is in the water storage state, the driving member 120 and the water purification switch 140 are turned on, the cleaning switch 190 and the drainage switch are turned off, and the water flowing out of the secondary filter 260 flows through the water purification pipe 130 and the water inlet pipe 160 and flows into the water storage member 150; when the water purification system 10 is in the cleaning state, the driving member 120 and the water purification switch 140 are turned off, the cleaning switch 190 and the sewage switch 220 are turned on, water flows out from the water storage cavity 151 and enters the water inlet cavity to wash the filter body, and in the washing process, sewage and impurities are discharged from the sewage discharge pipe 230. In this embodiment, when the water storage 150 is pressurized, the water purifying switch 140, the cleaning switch 190 and the sewage switch 220 are turned off, and the driving member 120 is turned on to pressurize the water flow and then flow into the water storage 150. It should be noted that, in the present embodiment, the flow monitoring member 270 may be mounted on the driving member 120.
Referring to fig. 2, the direction of the arrow in fig. 2 is the flow direction of the flowing water in the present embodiment. The present embodiment is different from the embodiment of fig. 1 in that the water purifying switch 140 is located between the water outlet end of the driving member 120 and the water inlet pipe 160, and the control of the components and the arrangement of the flow monitoring member 270 in the water purifying state, the water storing state and the cleaning state in the present embodiment are the same as those in the embodiment of fig. 1, except that the water purifying switch 140 needs to be turned on when the pressure in the water storing member 150 is increased.
Referring to fig. 4, the direction of the arrow in fig. 4 is the flow direction of the flowing water in the present embodiment. This embodiment differs from the embodiment of fig. 1 in that the secondary filter 260 is eliminated and the fresh water pipe 130 communicates directly between the water outlet end and the water inlet 111 of the filter 110. In this embodiment, the control of the components and the arrangement of the flow monitoring element 270 in the water purifying state, the water storing state, the cleaning state and the pressurization of the water storage element 150 are the same as those in the embodiment of fig. 1, and therefore, the description thereof is omitted.
Referring to fig. 5, the direction of the arrow in fig. 5 is the flow direction of the flowing water in the present embodiment. This embodiment differs from the embodiment of fig. 1 in that the secondary filter 260 is eliminated and the clean water switch 140 is located between the water outlet end and the water inlet pipe 160. The control of the components and the arrangement of the flow monitoring member 270 in the water purifying state, the water storing state and the cleaning state in this embodiment are the same as those in the embodiment of fig. 1, except that the water purifying switch 140 is turned on when the pressure in the water storing member 150 is increased.
Referring to fig. 6, the direction of the arrow in fig. 6 is the flow direction of the flowing water in the present embodiment. The present embodiment is different from the embodiment of fig. 1 in that the flow rate detecting member 270 and the high-voltage switch 280 are connected in series to an output pipe communicating with the post-processing member 250. The water flow treated by the post-treatment member 250 flows out of the output pipe, and the flow rate detection member 270 obtains an actual flow rate parameter of the purified water flow by detecting the water flow in the output pipe. In this embodiment, the control of each component in the water purifying state, the water storing state, the cleaning state and the pressurizing state in the water storing member 150 is the same as that in the embodiment of fig. 1, and therefore, the detailed description thereof is omitted.
Referring to fig. 7, the present invention also provides a control method of a water purification system, including the following steps:
s100: purified water flow is input into the filtering piece, and cleaning water flow is input into the water storage piece and stored.
Specifically, the driving member 120 of the water purifying system 10 is connected to the filtering member 110 and the water storage member 150, and the driving member 120 is used for inputting the water flow of the external water source into the filtering member 110 and the water storage member 150. The flow of water from the driving member 120 to the filtering member 110 is defined as a purified water flow, the flow of water from the driving member 120 to the water storage member 150 is defined as a cleaning water flow, and the purified water flow and the cleaning water flow are two different flows. The purified water switch 140 is located on a path of the purified water flow and is used for controlling on-off of the purified water flow. Specifically, the driving member 120 and the water purifying switch 140 are turned on, so that purified water is supplied into the filtering member 110 and washing water is supplied into the water storage member 150. The filter element 110 is used to filter the purified water stream to obtain a relatively pure purified water stream. The water storage member 150 stores the washing water flowing in from the driving member 120, and the water storage member 150 is connected to the filter member 110.
Alternatively, the driving member 120 may be a stabilized pressure pump, a booster pump, a vane pump, a self-priming pump, etc. having a forward and reverse flow direction and adjustable frequency.
S200: and acquiring an actual flow parameter of the purified water flow.
Specifically, the flow rate monitoring element 270 in the water purification system 10 is located on the path of the purified water flow and is used to obtain the actual flow rate parameter of the purified water flow, so as to monitor the actual flow rate parameter of the purified water flow. Alternatively, the flow monitor 270 may be electrically connected to the controller, and the flow monitor 270 sends the acquired actual flow parameter to the controller. Alternatively, the flow monitoring member 270 may have a display screen that displays the actual flow parameters.
S300: if the actual flow parameter is greater than the preset flow parameter, the steps S100 and S200 are continuously performed.
Specifically, a preset flow parameter is stored in the controller, and the controller can compare and judge the actual flow parameter with the preset flow parameter. If the actual flow parameter is greater than the preset flow parameter, the controller controls the driving element 120 and the water purification switch 140 to be continuously turned on to continue to execute steps S100 and S200.
S400: and if the actual flow parameter is less than or equal to the preset flow parameter, stopping water delivery to the filtering piece and the water storage piece, and inputting the cleaning water flow stored in the water storage piece into the filtering piece to flush the filtering piece.
Specifically, the controller controls the driving element 120 and the water purifying switch 140 to be turned off, so that the driving element 120 stops supplying water to the filtering element 110 and the water storage element 150. A cleaning switch 190 is provided on a path of the cleaning water flow stored in the water storage member 150 to the filter member 110, and the cleaning switch is used for controlling the on-off of the cleaning water flow on the path from the water storage member 150 to the filter member 110. Optionally, the cleaning switch 190 is electrically connected to the controller, and when the actual flow parameter is less than or equal to the preset flow parameter, the controller further controls the cleaning switch 190 to open, so that the cleaning water flow in the water storage member 150 flows into the filter member 110 to flush the filter member, so that the filter member 110 has a better flushing effect.
Specifically, in step S400, the washing of the filter element 110 is specifically: and flushing the filter element in a forward direction. Of course, in some embodiments, the flushing of the filter element 110 may also be: the filter element is backwashed.
S500: the washing water flow is pressurized before flowing into the water storage member and/or after flowing out of the water storage member and before flowing into the filter member.
Specifically, the pressurizing member 180 of the water purification system 10 is used to pressurize the washing water flowing through the pressurizing member 180. Specifically, the pressurizing member 180 may pressurize the washing water flow before the washing water flow flows into the water storage member 150; or the pressurizing member 180 pressurizes the washing water before the washing water flows out of the water storage member 150 and into the filter member 110; or the pressurizing member 180 may pressurize the washing water flow before the washing water flow flows into the water storage member 150, and the washing water flow flows out of the water storage member 150 and before the washing water flow flows into the filter member 110. The pressurized washing water flow has a large washing pressure, so that the filter member 110 has a good washing effect.
Specifically, the step S500 may be to pressurize the washing water flow before the washing water flow flows into the water storage member. Alternatively, step S500 may be to pressurize the flow of cleaning water after it flows out of the water storage member and before it flows into the filter member. Alternatively, step S500 may also be to pressurize the flow of washing water before it flows into the water storage member and after it flows out of the water storage member and before it flows into the filter member.
Alternatively, the pressure applying member 180 may be a pressure maintaining valve with an adjustable or non-adjustable range, and the pressure range is 0.1MP to 0.8 MP. Alternatively, the pressurizing member 180 may be an automatically pressure-adjustable pressure-stabilizing valve or a variable-frequency pressure-stabilizing valve.
Referring also to fig. 8, further, in this step, the pressure applied to the cleaning water flow is increased as the cumulative time of the purified water flow input is increased. Specifically, since the clogging of the filter member 110 is more serious as the use time of the driving member 120 increases, the pressurizing member 180 may be provided as an automatically pressurizing pressure maintaining valve in order to achieve a better flushing effect. As the duration of the operation of the driving member 120 increases, the cumulative time of the purified water flow input is also increased, and the pressure member 180 automatically increases the output pressure as the cumulative time of the purified water flow input is increased, so that the water flow passing through the pressure member 180 has a greater washing pressure, and the filter element 110 can be better washed, thereby prolonging the service life of the filter element 110. For example, assuming that the driving member 120 operates for a period of 0 to t1 and the cumulative time of the purified water flow input is also in a period of 0 to t1, the pressurizing member 180 gradually increases the output pressure from 0.1MP to 0.25 MP; when the operation time of the driving member 120 is in the range of t1 to t2, the cumulative time of the purified water flow input is also extended to the range of t1 to t2, in the process, the output pressure of the pressurizing member 180 is gradually increased from 0.25MP to 0.35MP, and t1< t 2.
The control method of the water purification system at least comprises the following beneficial effects: through the actual flow parameter who acquires purification rivers in real time, can in time learn the jam condition of filtering the piece, when actual flow parameter is less than or equal to and predetermines the flow parameter, can in time with the washing rivers input that have great washing pressure after the pressurization filter in and carry out timely effectual washing to filtering the piece, have better washing effect.
Referring to fig. 9, further, the control method of the water purification system further includes the following steps:
s600: and discharging the sewage formed after cleaning the filtering piece outwards.
Specifically, the drainage pipe 230 of the water purification system 10 is communicated with the filtering member, and the drainage switch 220 of the water purification system 10 is coupled to the drainage pipe 230 for controlling the on/off of the drainage pipe 230. The drain switch 220 is turned on, and the sewage formed after cleaning the filter 110 can be discharged through the drain pipe. The sewage and impurities are prevented from being accumulated in the filter member to breed bacteria by discharging the sewage formed after cleaning the filter member 110 outward.
Referring to fig. 10, further, the control method of the water purification system further includes the following steps:
after step S100 and before step S200, step S700 is further included: the washing water stored in the water storage member 150 is supplied into the filter member at predetermined time intervals to intermittently wash the filter member.
For example, assuming that the preset time interval is t3, when the water purification system 10 accumulates purified water for t3 (e.g., 1 hour) hours, the controller controls the driving unit 120 and the purified water switch 140 to be turned off and controls the cleaning switch 190 to be turned on, the cleaning water in the water storage member 150 flows out and washes the interior of the filter member, and the washing time is t4 (e.g., 0 to 60S). The flushing method has short flushing time and better flushing effect.
Referring to fig. 11, further, the control method of the water purification system further includes the following steps:
the water purification system 10 includes an off state and a water purification state, and further includes step S800 after step S100 and before step S200: when the water purification system is switched from the closed state to the water purification state, the cleaning water flow stored in the water storage part is input into the filtering part to flush the filtering part.
It will be appreciated that the above steps are performed to flush the filter elements at the instant of start-up of the water purification system 10. Because water purification system 10 is in when the closed condition, filter the body in the filtration and towards the one side ion concentration difference increase of intake antrum with filtering the body towards one side ion concentration difference increase that purifies the chamber, lead to the ion diffusion of the intracavity higher concentration of intaking to purifying the intracavity, when the user used water purification system 10, the conductivity of first cup pure water improved, and quality of water is relatively poor, causes relatively poor user experience. In the present application, the controller controls the cleaning switch 190 to input the cleaning water flow stored in the water storage 150 into the filtering member 110 for a short time (0 to 5 seconds) to wash the filtering member 110 at the moment when the flow detecting member 270 or the driving member 120 is activated, so as to reduce the difference in ion concentration between the two sides of the filtering body, thereby reducing the conductivity of the first cup of water.
Referring to fig. 12, further, the control method of the water purification system further includes the following steps:
recording the action time point of inputting the purified water flow into the filter element, wherein the action time point has a corresponding natural time point, and after the step S100 and before the step S200, the method further comprises a step S900: the cleaning water flow stored in the water storage member is inputted into the filter member at a natural time point to wash the filter member.
Specifically, the controller may also record the time point of the operation of the driving member 120 inputting the purified water flow into the filter member 110, and control the cleaning water flow stored in the water storage member 150 to be inputted into the filter member 110 to flush the filter member 110 at the natural time point. For example, after the water purification system 10 is used for a period of time, the controller records that the natural time corresponding to the action time point of the driving member 120 is 8 am and 4 pm, which means that the driving member 120 is frequently opened at 8 am and 4 pm, so that the user can know that he is used to water at 8 am and 4 pm. Thus, the filter 150 is washed at 8 am and 4 pm every day for 0 to 10S to reduce the difference in ion concentration between the two sides of the filter body, so that the conductivity of the first cup of water obtained by the user is reduced.
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 invention, 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 inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (16)
1. A water purification system, its characterized in that, water purification system includes:
a filter member;
the water storage part is connected with the filtering part;
the driving piece is connected with the filtering piece and the water storage piece and is used for respectively inputting the water flow of an external water source into the filtering piece and the water storage piece;
a water purification switch located on a path of purified water flowing from the driving member to the filter member;
a pressurizing member located on a path of the washing water flowing from the driving member into the water storage member and/or on a path of the washing water flowing from the water storage member to the filter member;
the flow monitoring piece is positioned on the path of the purified water flow and is used for acquiring the actual flow parameter of the purified water flow; and
a purge switch located on a path of the purge water flow from the water storage member to the filter member, the purge switch configured to open when the actual flow parameter is less than or equal to a preset flow parameter.
2. The water purification system of claim 1, further comprising a controller electrically connected to the flow monitoring element, the driving element, the water purification switch and the purge switch, wherein the controller is configured to control the driving element and the water purification switch to be turned off and the purge switch to be turned on when the actual flow parameter is less than or equal to the preset flow parameter.
3. The water purification system of claim 1, wherein the cleaning switch comprises a cleaning valve and a check valve, and the cleaning valve and the check valve are arranged in sequence along a flow direction of the cleaning water flow from the water storage member to the filter member.
4. The water purification system of claim 1, wherein the purge switch is a check valve.
5. The water purification system of claim 1, wherein the pressurizing member is located on a path of the flow of the washing water from the driving member into the water storage member.
6. The water purification system of claim 1, wherein the pressurizing member is an automatically pressurizable pressure maintaining valve.
7. The water purification system of claim 1, further comprising a drain switch and a drain pipe, wherein the filter member is provided with a drain outlet, the drain pipe is coupled to the drain outlet and communicated with the drain outlet, and the drain switch is used for controlling the on-off of the drain pipe.
8. The water purification system of claim 1, further comprising a pre-filter positioned in an incoming water flow path from the external water source to the drive member, the pre-filter configured to filter the incoming water flow.
9. The water purification system of claim 1, further comprising a secondary filter element in the path of the purified water stream for filtering the purified water stream.
10. A water purification machine comprising a water purification machine according to any one of claims 1 to 9.
11. A control method of a water purification system is characterized by comprising the following steps:
s100: inputting purified water flow into the filter element, and inputting cleaning water flow into the water storage element and storing the cleaning water flow;
s200: acquiring an actual flow parameter of the purified water flow;
s300: if the actual flow parameter is larger than the preset flow parameter, continuing to execute the steps S100 and S200;
s400: if the actual flow parameter is less than or equal to a preset flow parameter, stopping water delivery to the filter element and the water storage element, and inputting the cleaning water flow stored in the water storage element into the filter element to flush the filter element; and
s500: pressurizing the flow of washing water before it flows into the water storage member and/or after it flows out of the water storage member and before it flows into the filter member.
12. The control method of a water purification system according to claim 11, further comprising step S600: and discharging the sewage formed after cleaning the filter element outwards.
13. The method of claim 11, wherein in the step S500, the pressure applied to the washing water flow is increased as the cumulative time of the purified water flow input is prolonged.
14. The method of controlling a water purification system according to claim 11, further comprising, after the step S100 and before the step S200, a step S700: inputting the cleaning water flow stored in the water storage member into the filter member at preset time intervals to intermittently wash the filter member.
15. The method of claim 11, wherein the water purification system comprises an off state and a water purification state, and further comprises, after the step S100 and before the step S200, a step S800: when the water purification system is switched to the water purification state from the closed state, the cleaning water flow stored in the water storage part is input into the filtering part to flush the filtering part.
16. The method for controlling a water purification system according to claim 11, wherein the time of inputting the purified water flow into the filter element is recorded, the time of inputting the purified water flow into the filter element has a corresponding natural time, and the method further comprises, after the step S100 and before the step S200, a step S900: inputting the cleaning water flow stored in the water storage member into the filter member at the natural time point to wash the filter member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011139093.8A CN112299510B (en) | 2020-10-22 | 2020-10-22 | Water purifier, water purifying system and control method of water purifying system |
Applications Claiming Priority (1)
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| CN113926230A (en) * | 2021-10-29 | 2022-01-14 | 珠海格力电器股份有限公司 | Flushing control method and control device |
| CN114149055A (en) * | 2021-10-29 | 2022-03-08 | 珠海格力电器股份有限公司 | Water purification equipment, flushing control method thereof and water purification system |
| CN114159876A (en) * | 2021-09-28 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Filter element flushing control method, water purifier and computer readable storage medium |
| CN114191877A (en) * | 2021-10-29 | 2022-03-18 | 珠海格力电器股份有限公司 | Control method and control device for forward and backward washing water purification system |
| CN114275854A (en) * | 2021-10-29 | 2022-04-05 | 珠海格力电器股份有限公司 | Positive and negative flushing water purification system and control method thereof |
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| CN114191877A (en) * | 2021-10-29 | 2022-03-18 | 珠海格力电器股份有限公司 | Control method and control device for forward and backward washing water purification system |
| CN114275854A (en) * | 2021-10-29 | 2022-04-05 | 珠海格力电器股份有限公司 | Positive and negative flushing water purification system and control method thereof |
| CN114149055B (en) * | 2021-10-29 | 2024-01-26 | 珠海格力电器股份有限公司 | Water purification equipment, flushing control method thereof and water purification system |
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