CN112299510B - Water purifier, water purifying system and control method of water purifying system - Google Patents
Water purifier, water purifying system and control method of water purifying system Download PDFInfo
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- CN112299510B CN112299510B CN202011139093.8A CN202011139093A CN112299510B CN 112299510 B CN112299510 B CN 112299510B CN 202011139093 A CN202011139093 A CN 202011139093A CN 112299510 B CN112299510 B CN 112299510B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 700
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 157
- 238000000746 purification Methods 0.000 claims abstract description 117
- 238000004140 cleaning Methods 0.000 claims abstract description 91
- 238000001914 filtration Methods 0.000 claims abstract description 83
- 239000008213 purified water Substances 0.000 claims abstract description 69
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims description 64
- 238000010926 purge Methods 0.000 claims description 24
- 239000010865 sewage Substances 0.000 claims description 14
- 238000011045 prefiltration Methods 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 15
- 239000012535 impurity Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 239000012528 membrane Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 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
- 239000002131 composite material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011797 cavity material Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003993 interaction 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
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- -1 suspended matters Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- 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 purifying system and a control method thereof. The water storage piece is connected with the filtering piece. The driving piece is connected with the filtering piece and the water storage piece, and the driving piece is used for respectively inputting water flow of an external water source into the filtering piece and the water storage piece. The water purification switch is located in the path of the purified water flow from the driving member to the filtering member. The pressure member is located in the path of the flow of cleaning water from the drive member to the reservoir and/or in the path of the flow of cleaning water from the reservoir to the filter member. The flow monitoring piece is located on the path of the purified water flow and is used for acquiring actual flow parameters of the purified water flow. The cleaning switch is positioned on the path of the cleaning water flow from the water storage piece to the filtering piece, and the cleaning switch is configured to be opened when the actual flow parameter is smaller than or equal to the preset flow parameter. The water purifier, the water purifying system and the control method thereof provided by the invention have better 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 thereof.
Background
The filter element is arranged in the water purifier, and in the process that water flows through the filter element, the filter element can intercept impurities such as sediment, suspended solids, colloid, bacteria and the like contained in the water flow so as to obtain purified water. In severe water quality areas with high impurity content, the filter element is easily blocked by impurities. In the prior art, in order to ensure the normal operation of the filter element, the filter element is intermittently washed, however, the washing effect is poor, and the problem of filter element blockage still exists.
Disclosure of Invention
Based on the above, it is necessary to provide a water purifier, a water purification system and a control method thereof, which have a good flushing effect on the filter element.
A water purification system, the water purification system comprising:
a filter;
the water storage piece is connected with the filter piece;
The driving piece is connected with the filtering piece and the water storage piece and is used for respectively inputting water flow of an external water source into the filtering piece and the water storage piece;
a water purifying switch located on the path of the purified water flow from the driving member to the filtering member;
a pressurizing member located on a path of the washing water flow from the driving member toward the inside of the water storage member and/or on a path of the washing water flow from the water storage member toward the filtering 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
And the cleaning switch is positioned on the path of the cleaning water flow from the water storage piece to the filtering piece and is configured to be opened when the actual flow parameter is smaller than or equal to a preset flow parameter.
In one embodiment, the device further comprises a controller, wherein the controller is electrically connected with the flow monitoring piece, the driving piece, the water purifying switch and the cleaning switch, and the controller is used for controlling the driving piece and the water purifying switch to be closed and controlling the cleaning switch to be opened when the actual flow parameter is smaller than or equal to the preset flow parameter.
In one embodiment, the cleaning switch comprises a cleaning valve and a check valve, and the cleaning valve and the check valve are sequentially arranged along the flowing direction of the cleaning water flow from the water storage piece to the filtering piece.
In one embodiment, the purge switch is a check valve.
In one embodiment, the pressurizing member is located in a path of the washing water flowing from the driving member to the inside of the water storage member.
In one embodiment, the pressurizing member is a pressure stabilizing valve capable of automatically pressurizing.
In one embodiment, the filter element is provided with a drain outlet, and the drain outlet is connected with the drain outlet in a matching way and communicated with the drain outlet, and the drain switch is used for controlling the on-off of the drain outlet.
In one embodiment, the device further comprises a prefilter positioned in the path of the incoming water flow from the external water source to the drive member, the prefilter being configured to filter the incoming water flow.
In one embodiment, the filter further comprises a secondary filter element, which is positioned in the path of the purified water flow and is used for filtering the purified water flow.
A water purifier comprises the water purifier.
A control method of a water purification system, comprising the steps of:
S100: inputting purified water flow into the filtering piece, inputting cleaning water flow into the water storage piece and storing;
s200: acquiring an actual flow parameter of the purified water flow;
s300: if the actual flow parameter is greater than the preset flow parameter, continuing to execute the steps S100 and S200;
s400: if the actual flow parameter is smaller than or equal to the 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: the flow of washing water is pressurized before it flows into the water storage element and/or after it flows out of the water storage element and before it flows into the filter element.
In one embodiment, the method further includes step S600: and discharging the sewage formed after the filter element is cleaned.
In one embodiment, in the step S500, the pressure applied to the purge water flow increases as the accumulated time of the purge water flow input increases.
In one embodiment, after the step S100 and before the step S200, the method further includes step S700: the cleaning water flow stored in the water storage part is input into the filter part at preset time intervals so as to intermittently wash the filter part.
In one embodiment, the water purifying system includes a closed state and a purified water state, and further includes step S800 after the step S100 and before the step S200: when the water purifying system is switched from the closed state to the water purifying state, the cleaning water flow stored in the water storage part is input into the filter part to flush the filter part.
In one embodiment, the action time point of inputting the purified water flow into the filter element is recorded, the action time point has a corresponding natural time point, and the step S900 is further included after the step S100 and before the step S200: the cleaning water flow stored in the water storage part is input into the filter part at the natural time point so as to wash the filter part.
When the water purifying system is used for purifying water, the driving piece and the water purifying 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 obtained by the flow monitoring piece is smaller than or equal to the preset flow parameter, the driving piece and the water purifying switch are closed, the cleaning switch is opened, and under the action of the pressure piece, water flowing into the filtering piece from the water storage piece has larger pressure, so that impurities in the filtering piece can be effectively washed, and the filtering piece 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 variation of filter life and flushing pressure with the variation of drive member run time in accordance with the present invention;
FIG. 4 is a schematic diagram of a water purification system according to another embodiment of the present invention;
FIG. 5 is a schematic diagram of a water purification system in accordance with yet another embodiment of the present invention;
FIG. 6 is a schematic diagram of a water purification system according to yet another embodiment of the present invention;
FIG. 7 is a flow chart illustrating a control method of a water purification system according to an embodiment of the present invention;
FIG. 8 is a flow chart illustrating a control method of a water purification system according to another embodiment of the present invention;
FIG. 9 is a flow chart of a control method of a water purification system according to another embodiment of the present invention;
FIG. 10 is a flow chart illustrating a control method of a water purification system according to still another embodiment of the present invention;
FIG. 11 is a flow chart illustrating a control method of a water purification system according to another embodiment of the present invention;
fig. 12 is a flow chart illustrating a control method of a water purification system according to another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1 and 6 together, 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 washing 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 water flow from an external water source into the filtering member 110 and the water storage member 150, the water purifying switch 140 is located on a path of purified water flow flowing from the driving member 120 to the filtering member 110, and is used for controlling 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 flow from the driving member 120 toward the inside of the water storage member 150 and/or on a path of the washing water flow from the water storage member 150 toward the filtering member 110, for pressurizing the washing water flow therethrough. The flow monitor 270 is located in the path of the purified water flow for obtaining an actual flow parameter of the purified water flow. The purge switch 190 is located on the path of the purge water flow from the reservoir 150 to the filter element 110, the purge switch 190 being configured to open when the actual flow parameter is less than or equal to the preset flow parameter.
Specifically, the filter 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 to form a water inlet cavity and a purifying cavity which are mutually communicated, and a water inlet 111 communicated with the water inlet cavity and a water outlet 113 communicated with the purifying cavity are formed on the housing. The water purification system 10 further includes a water purification 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 purification pipe 130 is connected to the water inlet 111 in a matching manner, and is communicated with the water inlet 111 and the water outlet end of the driving member 120, water from the driving member 120 driving the external water source is input into the water inlet cavity through the water purification pipe 130, water flow directly flowing into the water inlet cavity from the driving member 120 is defined to be collectively referred to as purified water flow, and in the process of the purified water flow flowing through the filtering body, the filtering body intercepts impurities such as sediment, suspended matters, colloid, bacteria and the like contained in the purified water flow so as to prepare purified water. The purified water flow flows out from the water outlet 113 of the filter 110. The water purifying switch 140 is coupled to the water purifying pipe 130 for controlling the on/off of the purified water flow.
The water purification system 10 further includes a water inlet line 160 and a water outlet line 170. The water storage member 150 has a water storage cavity 151, the water inlet pipe 160 is communicated with the water purifying pipe 130 and the water storage cavity 151, and water flowing out from the water outlet end of the driving member 120 can flow into the water storage cavity 151 for storage through the water purifying pipe 130 and the water inlet pipe 160, so that water flowing into the water storage cavity 151 from the driving member 120 through the water purifying pipe 130 and the water inlet pipe 160 is defined as cleaning water flow, and the cleaning water flow are two different water flows. In an embodiment, the water outlet pipe 170 is communicated with the water storage cavity 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 filtering body in the filtering member 110 is blocked, the cleaning water stored in the water storage chamber 151 flows into the filtering member 110 through the water outlet pipe 170 and the water purifying pipe 130 to positively flush the filtering body. In another embodiment, the water outlet pipe 170 is communicated with the water storage cavity 151 and the water outlet 113, and the cleaning water stored in the water storage cavity 151 flows into the filter element 110 from the water outlet 113 through the water outlet pipe 170, and the filtering body is backwashed in the direction from the purifying cavity to the water inlet cavity. The following embodiments are described by taking the water outlet pipe 170 communicating with the water storage chamber 151 and the water purifying pipe 130 as an example.
The pressurizing member 180 is located on a storage water flow path from the driving member 120 toward the inside of the water storage chamber 151 and/or on a washing water flow path from the water storage chamber 151 toward the filtering member 110, for pressurizing the washing water flow flowing 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 flow from the water storage member 150 to the filter member 110, the pressurizing member 180 pressurizes the washing water flow before the washing water flow flows out of the water storage member 150 and flows into the filter member 110; if the pressurizing member 180 is located on the path of the washing water flow from the driving member 120 toward the inside of the water storage member 150 and on the path of the washing water flow from the water storage member 150 toward the filtering member 110, the pressurizing member 180 pressurizes the washing water flow before the washing water flow flows into the water storage member 150 and before the washing water flow flows out of the water storage member 150 and into the filtering member 110.
The flow monitor 270 is used for obtaining an actual flow parameter of the purified water flow, and when the actual flow parameter is smaller than or equal to a preset flow parameter, the cleaning switch 190 is turned on, the pressurized cleaning water flows into the water inlet cavity to flush 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 appreciated that the actual flow parameter obtained by the flow monitor 270 reflects the blocking condition of the filtering body, specifically, if the filtering body is smooth, the purified water flow has a larger flow, and the actual flow parameter is also larger; if the filter body is seriously blocked, the flow of the purified water flow is smaller, and the actual flow parameter is smaller.
Above-mentioned purifier and water purification system 10 through setting up flow monitoring spare 270 and pressurization spare 180, and flow monitoring spare 270 carries out real-time supervision to purifying water flow to in time learn the jam condition of filtering the body, and pressurization spare 180 pressurizes the washing water flow, can let in the washing water flow that has great pressure in filtering piece 110 when filtering the body and need wash, makes whole water purification system 10 can in time effectually wash the filtering body, has better washing effect. In particular, the method comprises the steps of,
Specifically, the water purification system 10 includes a water purification state, a water storage state, a cleaning state, and a shut-off state. In the water purifying state, the water purifying system 10 is used for purifying water, specifically, the driving member 120 and the water purifying switch 140 are opened, the cleaning switch 190 is closed, and purified water flows into the water inlet cavity through the driving member 120 and the water purifying pipe 130, and flows out of the purifying cavity after being filtered by the filtering body. Meanwhile, the water purification system 10 is used for purifying water and also can be used for storing water, specifically, the cleaning water flows into the water storage chamber 151 through the water inlet pipe 160 for storing water. Of course, when the water storage amount in the water storage chamber 151 reaches the preset water storage amount, the water inlet in the water storage chamber 151 is stopped, the water storage state is stopped, 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, when the actual flow parameter of the purified water flow is smaller than or equal to the preset flow parameter, the water purification system 10 can also be used for cleaning the filter element 110, specifically, the driving element 120 and the water purification switch 140 are closed, the cleaning switch 190 is opened, 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 filter element 110 through the water outlet pipe 170 to flush the filter body. When the water purification system 10 finishes 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 each process of switching the water purification system 10 from the water purification state to the off state, the water purification system 10 may also undergo a water storage state, a cleaning state, a water storage state and a cleaning state, or a cleaning state and a water storage state. For example, if the water amount in the water storage chamber 151 is sufficient and the actual flow parameter detected by the flow monitor 270 is less than or equal to the preset flow parameter during the water purifying process of the water purifying system 10, the water purifying system 10 is directly switched from the water purifying state to the cleaning state; or if the water quantity in the water storage cavity 151 is insufficient and the actual flow parameter is larger than the preset flow parameter in the water purification process, the water purification system 10 is in a water purification state and a water storage state at the same time, and is directly switched to a closed state after the water purification is finished; or if the water amount in the water storage chamber 151 is enough and the flow detection member 270 detects that the actual flow parameter is less than or equal to the preset flow parameter in the water purifying process of the water purifying system 10, the water purifying system 10 is directly switched from the water purifying state to the cleaning state so as to clean the filtering body. If water purification is still needed 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 water is needed after the cleaning, the water purifying system 10 is directly switched from the cleaning state to the closing state, but the water storage member 150 needs to store water when the water purifying is started next time.
Referring again to fig. 1, and also to fig. 2, in one embodiment, after a single flushing of the filter element 110, the amount of water in the water storage element 150 is reduced, resulting in a lower water pressure of the cleaning water flowing from the water storage element 150 to the filter element 110. At this time, if the washing of the filtering body is incomplete, the washing switch 190 may be turned off again, the driving member 120 is turned on, the driving member 120 inputs the washing water into the water storage member 150, the water amount in the water storage member 150 is increased, the water pressure is also increased, and the filtering body is washed again, so that the filtering member 110 has a better washing 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 time or multiple times, specifically, the filter member 110 may be repeatedly cleaned after the water storage member 150 is pressurized individually and multiple times, or the pressurization in the water storage member 150 and the cleaning of the filter member 110 may be alternately cycled. In addition, the output pressure of the driving member 120 and the pressurizing member 180 may be maintained during pressurizing the water storage member 150, or the output pressure of at least one of the driving member 120 and the pressurizing member 180 may be increased. In addition, the water purifying switch 140 is turned on or off according to different setting conditions during pressurizing the water storage member 150. 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 this embodiment, the water purifying switch 140 is turned off during the pressurization process of the water storage member 150; 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 opened during the pressurization of the water storage member 150.
Alternatively, the filter body within filter 110 may be one or more of an RO membrane, a nanofiltration membrane, an ultrafiltration membrane, a microfiltration membrane. Alternatively, the water purifying switch 140 and the washing switch 190 may be solenoid valves, electric valves, or the like. Alternatively, the driving member 120 may be a steady pressure pump, a booster pump, a vane pump, a self priming pump, or the like, which has a forward and reverse flow direction and is frequency-adjustable. Alternatively, the pressurizing member 180 may be a pressure stabilizing valve with or without an adjustable range, and the pressure ranges from 0.1MP to 0.8MP. Alternatively, the pressurizing member 180 may be a pressure stabilizing valve or a variable frequency pressure stabilizing valve that can automatically regulate pressure. Alternatively, the water storage member 150 may be spherical, cylindrical, square or shaped, with a volume of 0 to 5L. Alternatively, the water storage member 150 may be a single water storage member or a plurality of water storage members, if a plurality of water storage members 150 are provided, the 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 with a pressure stabilizing function, or may be a common water storage member 150 without a pressure maintaining function, if the water storage member 150 is a common water storage member 150, the pressurizing member 180 is at least required to be disposed on the water outlet pipe 170, and if the water storage member 150 is a pressure tank, the pressurizing member 180 may be disposed on the water inlet pipe 160 and/or the water outlet pipe 170.
Referring to fig. 3, in one embodiment, the pressurizing member 180 is a pressure stabilizing valve capable of automatically pressurizing. Since the blocking condition of the filter element 110 will be more serious with the increase of the service life of the driving element 120, in order to achieve a better flushing effect, the pressurizing element 180 can automatically increase the output pressure with the increase of the service life of the driving element 120, so that the water flowing through the pressurizing element 180 has a larger flushing pressure, and the filter element 110 can be flushed better, so that the service life of the filter element 110 is prolonged. For example, assuming that the driving member 120 operates for a period of 0 to t1, the pressurizing member 180 gradually increases the output pressure from 0.1MP to 0.25MP; when the driving member 120 operates for a time period in the range of t1 to t2, the pressurizing member 180 gradually increases the output pressure from 0.25MP to 0.35MP, t1< t2. Referring to fig. 3 specifically, in fig. 3, the X-coordinate direction is the running time of the driving member 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-time attenuation curve of the filtering member 110. As the running time of the driving member 120 increases, the flushing pressure of the water flow gradually increases, and the life-time attenuation of the filtering member 110 gradually decreases, that is, as the output pressure of the pressurizing member 180 gradually increases, the flushing pressure of the cleaning water flow is higher, and thus the filtering member 110 can be flushed more effectively, so as to prevent the filtering member 110 from being blocked, and facilitate the extension of the service life of the filtering member 110.
In one embodiment, the pressure member 180 is positioned in the path of the flow of cleaning water 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 through the pressurizing member 180, the water pressure of the stored water increases, and then the stored water flows into the pressure tank for storage. The pressurizing member 180 is located on a storage water flow path from the driving member 120 to the water storage chamber 151, and the pressurizing member 150 pressurizes the storage water flow in advance before the water storage member 150 stores water, so that the water storage member 150 is configured as a pressure tank having a good pressure maintaining effect, so that the pressure of the water stored in the pressure tank can be maintained at a stable high pressure. When cleaning is required, the water storage 150 can react quickly to facilitate an effective and quick flushing of the filter body.
In one embodiment, the purge switch 190 includes a purge valve 191 and a check valve 193, and the purge valve 191 and the check valve 193 are sequentially disposed along the flow direction of the purge water from the reservoir 150 to the filter 110. Specifically, the purge valve 191 and the check valve 193 are sequentially connected in series to the water outlet pipe 170. Alternatively, the purge 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 flow of the purge water flowing out of the water storage member 150 can flow into the filter member 110 only along the water outlet pipe 170. By providing the check valve 193, it is possible to prevent the flow of the washing water from flowing back into the water storage chamber 151 during the washing process to affect the water quality in the water storage chamber 151.
In one embodiment, the purge switch 190 may be just a check valve 193. Therefore, the valve arrangement can be effectively reduced, and the production cost of the water purification system 10 can be conveniently reduced.
In one embodiment, the water purification system 10 further includes a controller electrically connected to the flow monitor 270, the driving member 120, the water purification switch 140 and the cleaning switch 190, wherein the controller is configured to control the driving member 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 opening and closing of the driving member 120, the water purifying switch 140 and the washing switch 190 are controlled by a controller. When the water purifying system 10 is in the water purifying state and the water storing state, the controller controls the driving part 120 and the water purifying switch 140 to be opened and controls the cleaning switch 190 to be closed; when the water purification system 10 is in the cleaning state, the controller controls the driving part 120 and the water purification switch 140 to be turned off, and controls the cleaning switch 190 to be turned on. By setting the controller, the water purifying system 10 can automatically switch between the water purifying state, the cleaning state and the water storing state, so that the water purifying 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 time of use increases.
In one embodiment, the controller controls the drive 120 and the water purification switch 140 to be turned off at regular intervals and controls the purge switch 190 to be turned on at regular intervals to flush the filter body at regular intervals. For example, when the water purification system 10 accumulates the purified water t3 (e.g., 1 hour), the controller controls the water purification system 10 to be switched to the washing state, the washing water flow in the water storage chamber 151 flows out and washes the filtering body for t4 (e.g., 0 to 60S), and then, the controller controls the water purification system 10 to be switched to the off state or to be switched to the purified water state and/or the water storage state. The flushing method has short flushing time and good flushing effect.
In addition, when the water purification system 10 is in the closed state, the ion concentration difference between one side of the filtering body facing the water inlet cavity and one side of the filtering body facing the purification cavity is increased, so that ions with higher concentration in the water inlet cavity are diffused into the purification cavity, and when a user uses the water purification system 10, the conductivity of the first cup of pure water is improved, the water quality is poor, and poor user experience is caused. In the present application, the controller may also record and describe the user's water usage habit based on the use of the driving member 120 or other components within the water purification system 10 during the natural time, and then clean the filter member 110 before the user uses the water to solve the problem of high water removal rate of the first cup. For example, after the water purification system 10 is used for a period of time, the user's water usage time recorded by the controller is typically 8 am and 4 pm, and then the controller will control the water purification system 10 to flush the filter body at these two time points. Alternatively, the controller may control the water purification system 10 to switch to the cleaning state at the moment when the flow detection member 270 or the driving member 120 is activated, and perform a short-time (e.g., 10 s) flushing on the filtering body, so as to reduce the ion concentration difference at both sides of the filtering body, so that the conductivity of the first cup of water is reduced.
In an embodiment, the water purification system 10 further includes a drain switch 220 and a drain pipe 230, the filter 110 is provided with a drain outlet, the drain pipe 230 is connected to the drain outlet in a matching manner, and is communicated with the drain outlet, and the drain switch 220 is used for controlling on-off of the drain pipe 230. Specifically, the drain pipe 230 is communicated with the water inlet cavity, and sewage and impurities in the water inlet cavity after flushing can be timely discharged by arranging the drain pipe 230 and the drain switch 220, so that the sewage and impurities are prevented from being detained in the water inlet cavity to grow bacteria. It should be noted that, in this embodiment, the purified water flowing from the water inlet 111 can flush the water inlet cavity while the sewage is discharged from the sewage discharge pipe 230, 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 opened when the water purification system 10 is in a washing state, and to be closed when it is in a water purification state, a water storage state, and a pressurized state.
In one embodiment, the water purification system 10 further includes a pre-filter 240, the pre-filter 240 being positioned in the path of the incoming water flow from the external water source to the drive 120, the pre-filter 240 being configured to filter the incoming water flow. Specifically, the pre-filter 240 performs a preliminary filtration of the incoming water flow from the external water source and enters the driving member 120. The input water flow in this embodiment is the same 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 out of the water outlet end of the driving member 120 flows through the secondary filter 260 and flows into the filter 110 after being filtered. The secondary filter 260 may re-filter the water flowing from within the pre-filter 240 so that the water flowing into the filter 110 is cleaner.
Alternatively, the pre-filter 240 and the secondary filter 260 may be one or more of PP cotton filter, activated carbon filter, PAC filter, ultrafiltration membrane filter, microfiltration membrane filter, etc.
In one embodiment, the water purification system 10 further includes a post-treatment member 250, the filter member 110 having a water outlet 113, the post-treatment member 250 being in communication with the water outlet 113 via a connecting conduit. The purified water flow filtered by the filter 110 flows out from the water outlet 113 and flows into the post-treatment member 250 through the communication pipe to be outputted after being subjected to the subsequent treatment (such as filtration and sterilization) for the user.
Alternatively, the aftertreatment member 250 may be one or more of an activated carbon filter, an ultrafiltration membrane+carbon composite filter, a microfiltration membrane+carbon composite filter.
Next, the specific operation of the water purification system 10 of 5 embodiments that can exist in the present invention will be described in detail.
With continued reference to fig. 1, the arrow direction in fig. 1 is the direction of the flow 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 member 120 and the water purifying switch 140 are turned on, the cleaning switch 190 and the water draining switch are turned off, and the water from the external water source flows out through the pre-filter 240, the driving member 120, the secondary filter 260, the water purifying switch 140, the filter 110 and the post-treatment member 250 for the user; 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 closed, the cleaning switch 190 and the sewage discharge switch 220 are opened, water flows out of the water storage cavity 151 and enters the water inlet cavity to flush the filtering body, and in the flushing process, sewage and impurities are discharged from the sewage discharge pipe 230. In this embodiment, when the pressure in the water storage member 150 is increased, the water purifying switch 140, the cleaning switch 190 and the drain switch 220 are turned off, and the driving member 120 is started to pressurize the water flow and then flow into the water storage member 150. It should be noted that, in this embodiment, the flow monitor 270 may be mounted on the driving member 120.
Referring to fig. 2, the arrow direction in fig. 2 is the direction of flow when water flows to clean water in this embodiment. The difference between this embodiment and the embodiment in fig. 1 is 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 each component and the arrangement of the flow monitoring member 270 in this embodiment are the same as those in the embodiment in fig. 1 in the water purifying state, the water storage state and the cleaning state, and the difference is that the water purifying switch 140 needs to be opened when pressurizing the inside of the water storage member 150.
Referring to fig. 4, the arrow direction in fig. 4 is the direction of flow when water is flowing in the present embodiment. This embodiment differs from the embodiment of fig. 1 in that the secondary filter 260 is eliminated and the water purifying pipe 130 is directly connected between the water outlet end and the water inlet 111 of the filter 110. In this embodiment, the control of each component and the arrangement of the flow monitor 270 in the water purifying state, the water storing state, the cleaning state, and the pressurizing of the water storing member 150 are the same as those in the embodiment of fig. 1, and thus, the description thereof will not be repeated here.
Referring to fig. 5, the arrow direction in fig. 5 is the direction of flow when water is flowing in the present embodiment. This embodiment differs from the embodiment of fig. 1 in that the secondary filter 260 is eliminated and the water purification switch 140 is located between the water outlet and the water inlet pipe 160. The control of the components and the arrangement of the flow monitor 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 pressurizing the inside of the water storing member 150.
Referring to fig. 6, the arrow direction in fig. 6 is the direction of flow when water is flowing in the present embodiment. The difference between this embodiment and the embodiment in fig. 1 is that the flow 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 processed by the post-processing part 250 flows out of the output pipeline, and the flow detecting part 270 obtains the actual flow parameter of the purified water flow by detecting the water flow in the output pipeline. In this embodiment, the control of each component in the water purifying state, the water storing state, the cleaning state, and the pressurizing of the water storing member 150 is the same as that in the embodiment of fig. 1, and therefore, the description thereof is omitted here.
Referring to fig. 7, the invention also provides a control method of the water purifying system, comprising the following steps:
s100: and (3) inputting purified water flow into the filter element, and inputting and storing cleaning water flow into the water storage element.
Specifically, the driving member 120 in 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 water flow input into the filter element 110 by the driving element 120 is defined as a purified water flow, the water flow input into the water storage element 150 by the driving element 120 is defined as a cleaning water flow, and the purified water flow and the cleaning water flow are two different water flows. The water purification switch 140 is located on the path of the purified water flow and is used for controlling the on-off of the purified water flow. Specifically, the driving member 120 and the water purifying switch 140 are opened, and the purified water flow is inputted into the filter member 110, and the cleaning water flow is inputted into the water storage member 150. The filter element 110 is used to filter the purified water stream, resulting in a relatively pure purified water stream. The water storage member 150 is for storing the washing water flowing in by the driving member 120, and the water storage member 150 is connected with the filtering member 110.
Alternatively, the driving member 120 may be a steady pressure pump, a booster pump, a vane pump, a self priming pump, or the like, which has a forward and reverse flow direction and is frequency-adjustable.
S200: an actual flow parameter of the purified water flow is obtained.
Specifically, the flow monitor 270 in the water purification system 10 is located in the path of the purified water flow, and is used to obtain the actual flow parameter of the purified water flow, so as to monitor the actual flow 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 actual flow parameters obtained to the controller. Or the flow monitor 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, steps S100 and S200 are continuously performed.
Specifically, the controller stores preset flow parameters, and the controller can compare and judge the actual flow parameters with the preset flow parameters. If the actual flow parameter is greater than the preset flow parameter, the controller controls the driving member 120 and the water purifying switch 140 to be continuously turned on to continuously execute the steps S100 and S200.
S400: if the actual flow parameter is smaller than or equal to the 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.
Specifically, the controller controls the driving member 120 and the water purifying switch 140 to be turned off, and the driving member 120 stops the water supply to the filtering member 110 and the water storing member 150. A washing switch 190 is provided on the path of the washing water flow stored in the water storage member 150 to the filter member 110, and the washing switch is used to control the on-off of the washing 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 smaller than or equal to the preset flow parameter, the controller further controls the cleaning switch 190 to be turned on, so that the cleaning water 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 filter element 110 is rinsed specifically: the filter is positively rinsed. Of course, in some embodiments, the flushing of the filter element 110 may also be: the filter is backwashed.
S500: the flow of cleaning water is pressurized before it flows into the water storage element and/or after it flows out of the water storage element and before it flows into the filter element.
Specifically, the pressurizing member 180 of the above-described water purification system 10 serves to pressurize the flow of 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 flow before the washing water flow flows out of the water storage member 150 and into the filtering member 110; alternatively, 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 flow of cleaning water has a relatively high flushing pressure, which results in a relatively good flushing of the filter element 110.
Specifically, step S500 may be to pressurize the wash water flow before the wash water flow flows into the reservoir. Or step S500 may be to pressurize the wash water flow after it exits the water storage element and before it flows into the filter element. Or step S500 may also be to pressurize the flow of cleaning 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 pressurizing member 180 may be a pressure stabilizing valve with or without an adjustable range, and the pressure ranges from 0.1MP to 0.8MP. Alternatively, the pressurizing member 180 may be a pressure stabilizing valve or a variable frequency pressure stabilizing valve that can automatically regulate pressure.
Further, referring to fig. 8, in this step, the pressure applied to the purge water flow increases as the cumulative time of the purge water flow input increases. Specifically, since the clogging of the filter member 110 is more serious as the service time of the driving member 120 is increased, the pressurizing member 180 may be provided as a pressure stabilizing valve for automatically pressurizing in order to achieve a better flushing effect. With the increase of the service time of the driving member 120, the accumulated time of the purified water flow input is also prolonged, so that the output pressure of the pressurizing member 180 is automatically increased along with the increase of the accumulated time of the purified water flow input, so that the water flowing through the pressurizing member 180 has a larger flushing pressure, and the filtering member 110 can be flushed better, so that the service life of the filtering member 110 is prolonged. For example, assuming that the driving member 120 is operated for a period of 0 to t1 and the accumulated 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 0.25MP; when the driving member 120 operates for a time period ranging from t1 to t2, the accumulated time period of the purified water flow input is also extended to a time period ranging from t1 to t2, during which the pressurizing member 180 gradually increases the output pressure from 0.25MP to 0.35MP, t1< t2.
The control method of the water purification system at least comprises the following beneficial effects: the blocking condition of the filter element can be timely known by acquiring the actual flow parameter of the purified water flow in real time, when the actual flow parameter is smaller than or equal to the preset flow parameter, the pressurized cleaning water flow with larger flushing pressure can be timely input into the filter element and the filter element can be timely and effectively flushed, and the filter element has a better flushing 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 the filter element is cleaned.
Specifically, the drain pipe 230 of the water purification system 10 is connected to the filter, and the drain switch 220 of the water purification system 10 is coupled to the drain pipe 230 to control the on/off of the drain pipe 230. The drain switch 220 is opened and the sewage formed after the filter member 110 is washed can be discharged from the drain pipe. The sewage formed after the filter 110 is washed is discharged to the outside to prevent bacteria from being bred due to the sewage and impurities remained in the filter.
Referring to fig. 10, further, the control method of the water purification system further includes the following steps:
Step S700 is further included after step S100 and before step S200: the washing water flow stored in the water storage member 150 is inputted into the filter member at preset time intervals to intermittently wash the filter member.
For example, assuming that the preset time interval is t3, after the water purification system 10 accumulates the purified water t3 (e.g., 1 hour), the controller controls the driving part 120 and the water purification switch 140 to be turned off and controls the washing switch 190 to be turned on, the washing water flow in the water storage part 150 flows out and washes the inside of the filter, and the washing time is t4 (e.g., 0 to 60S). The flushing method has short flushing time and good 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 a closed state and a purified water state, and further includes step S800 after step S100 and before step S200: when the water purifying system is switched from the closed state to the water purifying 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 to flush the filter at the instant the water purification system 10 is started. Because when the water purification system 10 is in the closed state, the ion concentration difference between one side of the filtering body, which faces the water inlet cavity, of the filtering piece and one side of the filtering body, which faces the purification cavity, is increased, so that ions with higher concentration in the water inlet cavity are diffused into the purification cavity, and when a user uses the water purification system 10, the conductivity of the first cup of pure water is improved, the water quality is poor, and poor user experience is caused. In the present application, the controller controls the washing switch 190 at the moment when the flow rate detecting member 270 or the driving member 120 is activated, and inputs the washing water flow last stored in the water storage member 150 into the filtering member 110 to wash the filtering member 110 for a short time (0 to 5 s) so as to reduce the ion concentration difference at both sides of the filtering body, so that the conductivity of the first cup of water is reduced.
Referring to fig. 12, further, the control method of the water purification system further includes the following steps:
Recording an action time point of inputting purified water flow into the filter element, wherein the action time point has a corresponding natural time point, and the method further comprises the following step S100 and the following step S200: the cleaning water stored in the water storage part is input into the filter part at a natural time point to wash the filter part.
Specifically, the controller may also record the action time point of the driving member 120 for inputting the purified water flow into the filter member 110, and control the washing water flow stored in the water storage member 150 to be inputted into the filter member 110 at a natural time point to wash the filter member 110. For example, after the water purification system 10 is used for a period of time, the natural time points corresponding to the action time points of the driving element 120 recorded by the controller are 8 am and 4 pm, which means that the driving element 120 is always turned on at 8 am and 4 pm, so that the user can know that the user is accustomed to using water at 8 am and 4 pm. Thus, the filter 150 is rinsed at 8 am and 4 pm each day for 0 to 10S to reduce the difference in ion concentration across the filter body, so that the conductivity of the first cup of water obtained by the user is reduced.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (16)
1. A water purification system, the water purification system comprising:
a filter;
the water storage piece is connected with the filter piece;
The driving piece is connected with the filtering piece and the water storage piece and is used for respectively inputting water flow of an external water source into the filtering piece and the water storage piece;
a water purifying switch located on the path of the purified water flow from the driving member to the filtering member;
a pressurizing member located on a path of the washing water flow from the driving member toward the inside of the water storage member and/or on a path of the washing water flow from the water storage member toward the filtering member;
the flow monitoring piece is arranged on the driving piece and positioned on the path of the purified water flow and is used for acquiring the actual flow parameter of the purified water flow; and
And the cleaning switch is positioned on the path of the cleaning water flow from the water storage part to the filtering part, and is configured to be opened when the actual flow parameter is smaller than or equal to the preset flow parameter, and the cleaning water flow stored in the water storage part is input into the filtering part to wash the filtering part.
2. The water purification system of claim 1, further comprising a controller electrically connected to the flow monitor, the driver, the water purification switch, and the purge switch, the controller configured to control the driver 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 purge switch comprises a purge valve and a check valve, the purge valve and the check valve being sequentially disposed along a flow direction of the purge 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 in a path of the flow of the washing water from the driving member to the water storage member.
6. The water purification system of claim 1, wherein the pressurizing member is an automatically pressurizable pressure stabilizing valve.
7. The water purification system according to claim 1, further comprising a drain switch and a drain pipe, wherein the drain outlet is provided on the filter member, the drain pipe is connected to the drain outlet in a matching manner and is communicated with the drain outlet, and the drain switch is used for controlling on-off of the drain pipe.
8. The water purification system of claim 1, further comprising a pre-filter positioned in an input water flow path from the external water source to the drive member, the pre-filter configured to filter the input water flow.
9. The water purification system of claim 1, further comprising a secondary filter positioned in the path of the purified water stream for filtering the purified water stream.
10. A water purifier comprising a water purification system as claimed in any one of claims 1 to 9.
11. A control method of a water purification system as claimed in any one of claims 1 to 9, comprising the steps of:
S100: inputting purified water flow into the filtering piece, inputting cleaning water flow into the water storage piece and storing;
s200: acquiring an actual flow parameter of the purified water flow;
s300: if the actual flow parameter is greater than the preset flow parameter, continuing to execute the steps S100 and S200;
s400: if the actual flow parameter is smaller than or equal to the 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: the flow of washing water is pressurized before it flows into the water storage element and/or after it flows out of the water storage element and before it flows into the filter element.
12. The method for controlling a water purification system as recited in claim 11, further comprising step S600: and discharging the sewage formed after the filter element is cleaned.
13. The method of controlling a water purification system as claimed in claim 11, wherein in the step S500, the pressure applied to the washing water flow increases as the accumulated time of the washing water flow input increases.
14. The method according to claim 11, further comprising step S700 after the step S100 and before the step S200: the cleaning water flow stored in the water storage part is input into the filter part at preset time intervals so as to intermittently wash the filter part.
15. The method according to claim 11, wherein the water purifying system includes a closed state and a purified water state, and further comprising step S800 after the step S100 and before the step S200: when the water purifying system is switched from the closed state to the water purifying state, the cleaning water flow stored in the water storage part is input into the filter part to flush the filter part.
16. The method according to claim 11, wherein a time point of the operation of inputting the purified water flow into the filter is recorded, the time point of the operation having a corresponding natural time point, and further comprising step S900 after the step S100 and before the step S200: the cleaning water flow stored in the water storage part is input into the filter part at the natural time point so as to wash the filter part.
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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| CN114159876B (en) * | 2021-09-28 | 2023-04-07 | 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 |
| 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 |
| 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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