CN106277211B - Water purifier and control method thereof - Google Patents
Water purifier and control method thereof Download PDFInfo
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- CN106277211B CN106277211B CN201610901687.5A CN201610901687A CN106277211B CN 106277211 B CN106277211 B CN 106277211B CN 201610901687 A CN201610901687 A CN 201610901687A CN 106277211 B CN106277211 B CN 106277211B
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- concentrated water
- reverse osmosis
- osmosis filter
- flow path
- filter core
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 357
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 138
- 238000011010 flushing procedure Methods 0.000 claims abstract description 31
- 238000009991 scouring Methods 0.000 claims description 57
- 238000000746 purification Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 abstract description 21
- 238000011084 recovery Methods 0.000 abstract description 15
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/12—Use of permeate
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a water purifier and a control method thereof, wherein the water purifier comprises a reverse osmosis filter element and further comprises: one end of the first flushing flow path is communicated with a concentrated water outlet of the reverse osmosis filter element, and the other end of the first flushing flow path is communicated with a water inlet of the reverse osmosis filter element; one end of the second flushing flow path is communicated with a concentrated water outlet of the reverse osmosis filter element, and the other end of the second flushing flow path is communicated with a water inlet of the reverse osmosis filter element; one end of the concentrated water discharge flow path is communicated with the concentrated water outlet of the reverse osmosis filter element, the other end of the concentrated water discharge flow path is used for discharging the concentrated water to the outside, and the concentrated water discharge flow path is provided with a third valve system for controlling the on-off state of the concentrated water discharge flow path; and one end of the backflow flow path is communicated with a concentrated water outlet of the reverse osmosis filter element, the other end of the backflow flow path is communicated with a water inlet of the reverse osmosis filter element, and a fourth valve system for controlling the backflow flow path to be switched on and off is arranged on the backflow flow path. By the arrangement, the water purifier provided by the invention can solve the problem that the performance of the reverse osmosis membrane is quickly attenuated on the basis of improving the recovery rate of concentrated water.
Description
Technical field
The present invention relates to purifier technical field, more specifically to a kind of water purifier and its control method.
Background technology
Existing water purifier is there are the shortcomings that the concentrated water rate of recovery is low, and concentrated water discharge is more, in order to realize water purifier water-saving result, one
As high-recovery water purifier using reducing concentrated water discharge or by concentrated water partial reflux partial discharge.
However, although both water treatment technologies improve the rate of recovery to a certain extent, achieved the purpose that it is water-saving,
It is that the concentration polarization on reverse osmosis membrane surface is serious, reverse osmosis membrane can form CaCO3Small crystal nucleus, if CaCO cannot timely be upset3
The formation of small crystal nucleus will be easy to fouling on reverse osmosis membrane surface, and reverse osmosis membrane performance attenuation accelerates, the service life of reverse osmosis membrane
It will be greatly affected.
Therefore, how on the basis of the concentrated water rate of recovery is improved, solve the problems, such as that reverse osmosis membrane performance attenuation is very fast, become
Those skilled in the art's important technological problems to be solved.
The content of the invention
In view of this, it is an object of the invention to provide a kind of water purifier, the basis of the concentrated water rate of recovery can improved
On, solve the problems, such as that reverse osmosis membrane performance attenuation is very fast.It is an object of the invention to provide a kind of controlling parties of above-mentioned water purifier
Method equally it is faster can to solve reverse osmosis membrane performance attenuation on the basis of the concentrated water rate of recovery is improved by the control method
Problem.
A kind of water purifier provided by the invention, including reverse osmosis filter core, further includes：
First rinses flow path, one end and the concentrated water outlet, the other end and the reverse osmosis filter of the reverse osmosis filter core
The water inlet connection of core, and the first flushing flow path is equipped with to control the first valve system of its break-make；
Second rinses flow path, one end and the concentrated water outlet, the other end and the reverse osmosis filter of the reverse osmosis filter core
The water inlet connection of core, the second flushing flow path are equipped with the second valve for controlling its break-make and can carrying out pulse-type drainage
Door system；
Concentrated water discharge flow path, one end and the concentrated water outlet of the reverse osmosis filter core, the other end are used to discharge concentrated water
To the external world, the concentrated water discharge flow path is equipped with the 3rd valve system for controlling its break-make；
Reflow line, one end and the concentrated water outlet of the reverse osmosis filter core, the other end and the reverse osmosis filter core
Water inlet connects, and the reflow line is equipped with the 4th valve system for controlling its break-make.
Preferably, the concentrated water outlet of the reverse osmosis filter core is connected with concentrated water discharge main line, the reverse osmosis filter core enters
The mouth of a river is equipped with into water main line, the concentrated water discharge main line and it is described enter water main line between be connected with：
Equipped with the first scouring electromagnetic valve, flow path is rinsed to form described first for the first branch；
The second branch, equipped with the first normally opened concentrated water ratio, the second normally opened concentrated water when the second scouring electromagnetic valve, described second often
It opens concentrated water ratio to connect with the described first normally opened concentrated water ratio with after the second scouring electromagnetic valve parallel connection, the second normally opened concentrated water ratio
Water outlet be connected with the external world, flow path where the first normally opened concentrated water ratio and second scouring electromagnetic valve forms described the
Two rinse flow path, and flow path where the first normally opened concentrated water ratio and the second normally opened concentrated water ratio forms the concentrated water drainage and releases
Road；
3rd branch, equipped with the 3rd normally opened concentrated water ratio and return flow solenoid valve, to form the reflow line.
Preferably, the concentrated water outlet of the reverse osmosis filter core is connected with concentrated water discharge main line, the reverse osmosis filter core enters
The mouth of a river is equipped with into water main line, the concentrated water discharge main line and it is described enter water main line between be connected with：
The first branch, it is normally opened equipped with the first scouring electromagnetic valve, the second scouring electromagnetic valve, the first normally opened concentrated water ratio and second
Concentrated water ratio, first scouring electromagnetic valve and the first normally opened concentrated water ratio are in parallel, second scouring electromagnetic valve and described
Second normally opened concentrated water ratio is in parallel, and two parallel flow paths are in series, and first scouring electromagnetic valve and described second rinses electricity
Flow path where magnet valve forms described first and rinses flow path, first scouring electromagnetic valve and the second normally opened concentrated water ratio or institute
Flow path where stating the second scouring electromagnetic valve and the first normally opened concentrated water ratio forms described second and rinses flow path, and described first is normally opened
Flow path where concentrated water ratio and the second normally opened concentrated water ratio forms the concentrated water discharge flow path；
The second branch, equipped with the 3rd normally opened concentrated water ratio and return flow solenoid valve, to form the reflow line.
Preferably, it is described enter water main line be equipped with booster pump.
Preferably, the preposition filter core of at least level-one for entering water main line upstream described in being arranged on is further included.
Preferably, at least level-one postposition filter core in the pure water outlet downstream for being arranged on the reverse osmosis filter core is further included.
The present invention also provides a kind of control method of water purifier, based on water purifier as described above, on the water purifier
After electricity, including step：
S1, the first valve system control described first rinse flow path conducting, the reverse osmosis filter core are rinsed；
S2, after being rinsed a seconds to the reverse osmosis filter core, first valve system, second valve system close
It closes, the 4th valve system is closed, the 3rd valve system opening, so that concentrated water drainage goes out the external world；
S3, concentrated water drainage go out it is b seconds extraneous after, second valve system, the 4th valve system open, the 3rd valve system close
Close so that a concentrated water part for the discharge of the reverse osmosis filter core by described second rinse flow path to the reverse osmosis filter core into
Row rinses, another part is flow back by the reflow line in the reverse osmosis filter core；
S4, after second valve system, the 4th valve system are opened c seconds, second valve system, the 4th valve system
System is closed, and the 3rd valve system is opened, and the concentrated water is discharged outside to；
S5, during the water purification mechanism pure water, repeating said steps S2, S3 and S4；
Wherein, a ＞ 0, b ＞ 0, c ＞ 0.
Preferably, the water purification mechanism pure water time reach d it is small when after, first valve system is opened, described second
Valve system, the 3rd valve system and the 4th valve system are closed, and the concentrated water of the reverse osmosis filter core exports the dense of outflow
Water is rinsed the reverse osmosis filter core by the described first flushing flow path, after washing time reaches e seconds, first valve
System is closed, wherein, d ＞ 0, e ＞ 0.
Preferably, when the pressure in the pressure pot of the water purifier is more than preset high-pressure value, first valve system
It opens, second valve system, the 3rd valve system and the 4th valve system are closed, the concentrated water of the reverse osmosis filter core
The concentrated water for exporting outflow is rinsed the reverse osmosis filter core by the described first flushing flow path, after washing time reaches f seconds,
First valve system is closed, wherein, f ＞ 0.
Preferably, when the pressure in the pressure pot of the water purifier is less than pre-set low pressure value, first valve system
It opens, second valve system, the 3rd valve system and the 4th valve system are closed, the concentrated water of the reverse osmosis filter core
The concentrated water for exporting outflow is rinsed the reverse osmosis filter core by the described first flushing flow path, after washing time reaches g seconds,
First valve system is closed, wherein, g >=0.
Preferably, in the step S3 and S4, into the reverse osmosis filter core raw water TDS values be less than predetermined low level when,
Described b seconds is b1 seconds, and described c seconds is c1 seconds；Raw water TDS values into the reverse osmosis filter core are more than predetermined low level and are less than
During default high level, described b seconds is b2 seconds, and described c seconds is c2 seconds；Into the reverse osmosis filter core raw water TDS values be more than it is default
During high level, described b seconds is b3 seconds, and described c seconds is c3 seconds；Wherein, 0 ＜ b1 ＜ b2 ＜ b3,0 ＜ c1 ＜ c2 ＜ c3.
In technical solution provided by the invention, the concentrated water that is flowed out by reverse osmosis filter core can different processing stages respectively into
Enter the first flushing flow path, the second flushing flow path, concentrated water discharge flow path and reflow line to be handled.It is described in detail below：Water purification
After machine powers on, step is carried out：S1, the first valve system control first rinse flow path conducting, reverse osmosis filter core are rinsed；
S2, after being rinsed a seconds to reverse osmosis filter core, the first valve system, the second valve system are closed, the 4th valve system is closed,
3rd valve system is opened, so that concentrated water drainage goes out the external world；S3, concentrated water drainage go out it is b seconds extraneous after, the second valve system, the 4th valve
System is opened, and the 3rd valve system is closed, so that a concentrated water part for the discharge of reverse osmosis filter core rinses flow path pair by second
Reverse osmosis filter core is rinsed, another part is flow back by reflow line in reverse osmosis filter core；S4, the second valve system,
After four valve systems are opened c seconds, the second valve system, the 4th valve system are closed, and the 3rd valve system is opened, and concentrated water is expelled to
It is extraneous；S5 during water purification mechanism pure water, repeats step S2, S3 and S4；Wherein, a ＞ 0, b ＞ 0, c ＞ 0.
So set, water purifier provided by the invention, reverse osmosis filter core is rinsed using pulsed and discontinuous reflux is controlled
System can reduce concentrated water discharge, improve the system rate of recovery, while can slow down the filter membrane surface concentration polarization of reverse osmosis filter core, extend
Membrane life.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the schematic diagram of water purifier in the first embodiment of the invention；
Fig. 2 is the schematic diagram of water purifier in second of embodiment of the invention；
Fig. 3 is the schematic diagram of water purifier in the third embodiment of the invention；
In Fig. 1-Fig. 3：
Reverse osmosis filter core -11, concentrated water discharge main line -12 enter water main line -13, the first branch -14, the first flushing electricity
Magnet valve -15, the second branch -16, the first normally opened concentrated water ratio -17, the second normally opened concentrated water ratio -18, the second scouring electromagnetic valve -
19th, the 3rd branch -20, the 3rd normally opened concentrated water ratio -21, return flow solenoid valve -22, booster pump -23, pressure pot -24.
Specific embodiment
The core of present embodiment is to provide a kind of water purifier, can improve the basis of the concentrated water rate of recovery
On, solve the problems, such as that reverse osmosis membrane performance attenuation is very fast.Another core of present embodiment is to provide a kind of above-mentioned net
The control method of water dispenser equally can solve reverse osmosis membrane by the control method on the basis of the concentrated water rate of recovery is improved
It can decay the problem of very fast.
Hereinafter, embodiment is illustrated referring to the drawings.In addition, embodiments illustrated below is not to recorded in claim
The content of the invention rise any restriction effect.In addition, the full content of the composition represented by example below is not limited to as right
It is required that necessary to the solution of recorded invention.
- Fig. 3 is please referred to Fig.1, a kind of water purifier provided in this embodiment including reverse osmosis filter core 11, further includes the first punching
Wash flow path, the second flushing flow path, concentrated water discharge flow path and reflow line.
Wherein, first the concentrated water outlet of flow path one end and reverse osmosis filter core 11, the other end and reverse osmosis filter core are rinsed
11 water inlet connection, and the first flushing flow path is equipped with to control the first valve system of its break-make.When the first valve system
During opening, first rinses flow path conducting, and the concentrated water that reverse osmosis filter core 11 is discharged can be expelled directly out and pass through the first flushing flow path stream
It is back to reverse osmosis filter core 11 and the filter membrane of reverse osmosis filter core 11 is rinsed.
Second flushing flow path one end and concentrated water outlet, the other end of reverse osmosis filter core 11 enter with reverse osmosis filter core 11
The mouth of a river connects, wherein, the second flushing flow path is equipped with to control its break-make and be capable of the second valve system of pulse-type drainage.It needs
It is noted that above-mentioned pulse-type drainage refers to, flushing current are pulse-type drainage, by being pressurized hydraulic pressure and unexpected release suddenly
The mode of frequent transitions is rinsed filter membrane.Above-mentioned second valve system can be made of an electromagnetism concentrated water than valve,
It can be made of solenoid valve and normally opened concentrated water ratio valve.
Concentrated water discharge flow path one end and the concentrated water outlet of reverse osmosis filter core 11, the other end are used to concentrated water being expelled to outer
Boundary, concentrated water discharge flow path are equipped with the 3rd valve system for controlling its break-make.
Reflow line one end and the concentrated water outlet of reverse osmosis filter core 11, the water inlet of the other end and reverse osmosis filter core 11
Connection, and reflow line is equipped with the 4th valve system for controlling its break-make.
So set, in technical solution provided in this embodiment, the concentrated water flowed out by reverse osmosis filter core 11 can be different
Processing stage respectively enters the first flushing flow path, the second flushing flow path, concentrated water discharge flow path and reflow line and is handled.Specifically
As described below：
After water purifier powers on, step is carried out：S1, flow path conducting is rinsed in the first valve system control first, to reverse osmosis
Filter core 11 is rinsed；S2, after being rinsed a seconds to reverse osmosis filter core 11, the first valve system, the second valve system close,
4th valve system is closed, and the 3rd valve system is opened, so that concentrated water drainage goes out the external world；S3, concentrated water drainage go out it is b seconds extraneous after, second
Valve system, the 4th valve system are opened, and the 3rd valve system is closed, so that a concentrated water part for the discharge of reverse osmosis filter core 11
By the second flushing, flow path is rinsed reverse osmosis filter core 11, another part flows back into reverse osmosis filter core 11 by reflow line
It is interior；S4, after the second valve system, the 4th valve system are opened c seconds, the second valve system, the 4th valve system are closed, the 3rd valve
Door system is opened, and concentrated water is discharged outside to；S5 during water purification mechanism pure water, repeats step S2, S3 and S4；Wherein, a ＞ 0, b ＞ 0,
C ＞ 0.
So set, water purifier provided in this embodiment, reverse osmosis filter core 11 is rinsed using pulsed and discontinuous returns
Flow control can reduce concentrated water discharge, improve the system rate of recovery, while can slow down the filter membrane surface concentration polarization of reverse osmosis filter core 11
Change, extend membrane life.
It please refers to Fig.1 and Fig. 2, water purifier provided in this embodiment, above-mentioned first rinses flow path, second rinses flow path, dense
Water drain flow path and the setting form of reflow line specific as follows can state setting：
The concentrated water outlet of reverse osmosis filter core 11 be connected with concentrated water discharge main line 12, the water inlet of reverse osmosis filter core 11 be equipped with into
Water main line 13, concentrated water discharge main line 12 and enters and is connected with the first branch 14,16 and the 3rd branch of the second branch between water main line 13
20, the first branch 14,16 and the 3rd branch 20 of the second branch are parallel relationship.
Wherein, the first branch 14 is equipped with the first scouring electromagnetic valve 15, and flow path is rinsed to form above-mentioned first.The second branch 16
Equipped with the first normally opened concentrated water than the 17, second normally opened concentrated water than 18 and second scouring electromagnetic valve 19, the second normally opened concentrated water is than 18 and
It connects after two scouring electromagnetic valves, 19 parallel connection with the first normally opened concentrated water than 17, the second water outlet of the normally opened concentrated water than 18 is connected with the external world
Logical, the first normally opened concentrated water forms second and rinses flow path, the first normally opened concentrated water ratio than 17 with 19 place flow path of the second scouring electromagnetic valve
17 and 18 place flow path of the second normally opened concentrated water ratio form concentrated water discharge flow path.3rd branch 20 is equipped with the 3rd normally opened concentrated water than 21 Hes
Return flow solenoid valve 22, to form reflow line.
So set, when water purifier powers on, the first scouring electromagnetic valve 15 is opened, and concentrated water is discharged from the first scouring electromagnetic valve 15
Reverse osmosis filter core 11 is rinsed, the first scouring electromagnetic valve 15 powers off after rinsing a seconds, and water purifier enters aqueous mode processed.
During water purification mechanism water, the first scouring electromagnetic valve 15 powers off, and the second scouring electromagnetic valve 19 powers off, and return flow solenoid valve 22 is disconnected
Electricity, concentrated water are discharged from the first normally opened concentrated water than the 17, second normally opened concentrated water than 18, and after b seconds, the second scouring electromagnetic valve 19 is logical at interval
Electricity, return flow solenoid valve 22 are powered, and the first normally opened concentrated water of concentrated water part is discharged outside to than the 17, second scouring electromagnetic valve 19, portion
The 3rd normally opened concentrated water of lease making is back to the water inlet of reverse osmosis filter core 11 than 21, return flow solenoid valve 22.Interval is after c seconds, the second punching
Solenoid valve 19 to be washed to power off, return flow solenoid valve 22 powers off, and concentrated water is discharged from the first normally opened concentrated water than the 17, second normally opened concentrated water than 18,
So Xun Huan.
It should be noted that above-mentioned first normally opened concentrated water than the 17, second normally opened concentrated water than 18 and the 3rd normally opened concentrated water than 21,
For a kind of title of pulse valve in the art, i.e., it can form pulse water flow.It is made moreover, above-mentioned each concentrated water compares current
Into resistance it is larger, if solenoid valve and normally opened concentrated water ratio are parallel connection, when solenoid valve and normally opened concentrated water ratio open simultaneously, current are excellent
First flowed through from solenoid valve.
In addition, water purifier provided in this embodiment can be double water outlet water purifiers or single water outlet water purifier.
Certainly, water purifier provided in this embodiment, first rinse flow path, second rinse flow path, concentrated water discharge flow path and
Reflow line can be configured as other forms, as shown in Figure 3：
It is identical with above example, the outlet of the concentrated water of reverse osmosis filter core 11 be equally connected with concentrated water discharge main line 12,
The water inlet of reverse osmosis filter core 11 is equipped with into water main line 13, concentrated water discharge main line 12 and is entered and is connected with first between water main line 13
Road 14 and the second branch 16, the first branch 14 and the second branch 16 are parallel relationship.
Wherein, the first branch 14 is equipped with the first scouring electromagnetic valve 15, the second scouring electromagnetic valve 19, the first normally opened concentrated water than 17
And second normally opened concentrated water than 18.
First scouring electromagnetic valve 15 and the first normally opened concentrated water ratio 17 are in parallel, and the second scouring electromagnetic valve 19 and second is normally opened dense
Water is in parallel than 18, and two parallel flow paths are in series, 19 place flow path of the first scouring electromagnetic valve 15 and the second scouring electromagnetic valve
It forms first and rinses flow path, the first scouring electromagnetic valve 15 and the second normally opened concentrated water ratio 18 or the second scouring electromagnetic valve 19 and first
Normally opened concentrated water forms second than 17 place flow paths and rinses flow path, stream where the first normally opened concentrated water concentrated water ratio 18 more normally opened than 17 and second
Road forms concentrated water discharge flow path.
The second branch 16 is equipped with the 3rd normally opened concentrated water than 21 and return flow solenoid valve 22, to form reflow line.
So set,
When water purifier powers on, the first scouring electromagnetic valve 15 is powered, the second scouring electromagnetic valve 19 is powered, and concentrated water is rinsed through first
Solenoid valve 15, the second scouring electromagnetic valve 19, which are discharged, is rinsed the filter membrane of reverse osmosis filter core 11, and after rinsing a seconds, first rinses
Solenoid valve 15 powers off, the second scouring electromagnetic valve 19 powers off, and water purifier enters aqueous mode processed.
During water purification mechanism water, the first scouring electromagnetic valve 15 powers off, and the second scouring electromagnetic valve 19 powers off, and return flow solenoid valve 22 is disconnected
Electricity, concentrated water are discharged outside to from the first normally opened concentrated water than the 17, second normally opened concentrated water than 18.Interval is after b seconds, the second scouring electromagnetic valve
19 are powered, and return flow solenoid valve 22 is powered, and the first normally opened concentrated water of concentrated water part is discharged than the 17, second scouring electromagnetic valve 19, part
It flows back through the 3rd normally opened concentrated water than 21, return flow solenoid valve 22 in reverse osmosis filter core 11.Interval is after c seconds, the second scouring electromagnetic valve 19
Power-off, return flow solenoid valve 22 power off, and concentrated water is discharged outside to from the first normally opened concentrated water than the 17, second normally opened concentrated water than 18, so
Xun Huan.
Or during water purification mechanism water, the first scouring electromagnetic valve 15 powers off, and the second scouring electromagnetic valve 19 powers off, return flow solenoid valve
22 power-off, concentrated water is from the first normally opened concentrated water than the 17, second normally opened concentrated water than 18 discharges.Interval is after b seconds, the first scouring electromagnetic valve 15
It is powered, return flow solenoid valve 22 is powered, and the first scouring electromagnetic valve of concentrated water part 15, the second normally opened concentrated water are partly passed through than 18 discharges
3rd normally opened concentrated water is back to than 21, return flow solenoid valve 22 in reverse osmosis filter core 11.Interval is after c seconds, the first scouring electromagnetic valve 15
Power-off, return flow solenoid valve 22 power off, and concentrated water is discharged outside to from the first normally opened concentrated water than the 17, second normally opened concentrated water than 18, so
Xun Huan.
In the preferred embodiment of the present embodiment, enter water main line 13 equipped with booster pump 23.Booster pump 23 can increase reverse osmosis
The water entry pressure of filter core 11 improves filter efficiency and cleaning performance.
Water purifier provided in this embodiment is also provided at least one in the upstream for entering water main line 13 of reverse osmosis filter core 11
The preposition filter core of grade, for example can set there are one active carbon filter core and super model filter core, under the pure water outlet of reverse osmosis filter core 11
Trip is equally also provided at least level-one postposition filter core.In such manner, it is possible to effectively improve drainage effect.
The present embodiment additionally provides a kind of control method of water purifier, based on the water purifier being performed as described above in example, water purifier
After powering on, including step：
S1, the first valve system control first rinse flow path conducting, reverse osmosis filter core 11 are rinsed；
S2, after being rinsed a seconds to reverse osmosis filter core 11, the first valve system, the second valve system are closed, the 4th valve
System is closed, and the 3rd valve system is opened, so that concentrated water drainage goes out the external world；
S3, concentrated water drainage go out it is b seconds extraneous after, the second valve system, the 4th valve system open, the 3rd valve system close,
So that a concentrated water part for the discharge of reverse osmosis filter core 11 is rinsed reverse osmosis filter core 11 by the second flushing flow path, is another
Part is flow back by reflow line in reverse osmosis filter core 11；
S4, after the second valve system, the 4th valve system are opened c seconds, the second valve system, the 4th valve system are closed,
3rd valve system is opened, and concentrated water is discharged outside to；
S5 during water purification mechanism pure water, repeats step S2, S3 and S4；
Wherein, a ＞ 0, b ＞ 0, c ＞ 0.
So set, the control method of water purifier provided in this embodiment, can on the basis of the concentrated water rate of recovery is improved,
Solve the problems, such as that reverse osmosis membrane performance attenuation is very fast.The derivation of the advantageous effect and beneficial effect caused by above-mentioned water purifier
The derivation of fruit is substantially the same, and is repeated no more herein.
For the attenuation for further improving the concentrated water rate of recovery, reducing reverse osmosis membrane performance, the water purification mechanism pure water time reaches d
After hour, the first valve system is opened, and the second valve system, the 3rd valve system and the 4th valve system are closed, reverse osmosis filter
The concentrated water of the concentrated water outlet outflow of core 11 is rinsed reverse osmosis filter core 11 by the first flushing flow path, and washing time reaches e
After second, the first valve system is closed, wherein, d ＞ 0, e ＞ 0.
Further, when the pressure in the pressure pot 24 of water purifier is more than preset high-pressure value, the first valve system is opened,
Second valve system, the 3rd valve system and the 4th valve system are closed, the concentrated water of the concentrated water outlet outflow of reverse osmosis filter core 11
Reverse osmosis filter core 11 is rinsed by the first flushing flow path, after washing time reaches f seconds, the first valve system is closed,
In, f ＞ 0.In this way, being rinsed to filter core for interruption, can effectively improve the concentrated water rate of recovery and the flushing effect to filter membrane.
In the further preferred embodiment of the present embodiment, when the pressure in the pressure pot 24 of water purifier is less than pre-set low pressure value
When, the first valve system is opened, and the second valve system, the 3rd valve system and the 4th valve system are closed, reverse osmosis filter core 11
Concentrated water outlet outflow concentrated water by first flushing flow path reverse osmosis filter core 11 is rinsed, after washing time reaches g seconds,
First valve system is closed, wherein, g >=0.
In addition, filter core can be rinsed according to the TDS values of raw water in the present embodiment, wherein, TDS values refer to dissolubility
The total amount value of solid, into reverse osmosis filter core 11 raw water TDS values be less than predetermined low level when, b second be b1 seconds, c seconds be c1 seconds；Into
When entering the raw water TDS values of reverse osmosis filter core 11 more than predetermined low level and being less than default high level, b seconds are b2 seconds, and c seconds are c2 seconds；Into
When entering the raw water TDS values of reverse osmosis filter core 11 more than default high level, b seconds are b3 seconds, and c seconds are c3 seconds；Wherein, 0 ＜ b1 ＜ b2 ＜
B3,0 ＜ c1 ＜ c2 ＜ c3.
So set, it further improves the concentrated water rate of recovery, improve flushing effect to filter core.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (13)
1. a kind of water purifier, including reverse osmosis filter core (11), which is characterized in that further include：
First rinses flow path, one end and the concentrated water outlet, the other end and the reverse osmosis filter of the reverse osmosis filter core (11)
The water inlet connection of core (11), and the first flushing flow path is equipped with to control the first valve system of its break-make；
Second rinses flow path, one end and the concentrated water outlet, the other end and the reverse osmosis filter of the reverse osmosis filter core (11)
The water inlet connection of core (11), the second flushing flow path are equipped with to control its break-make and can carry out the of pulse-type drainage
Two valve systems；
Concentrated water discharge flow path, one end and the concentrated water outlet of the reverse osmosis filter core (11), the other end are used to discharge concentrated water
To the external world, the concentrated water discharge flow path is equipped with the 3rd valve system for controlling its break-make；
Reflow line, one end and the concentrated water outlet of the reverse osmosis filter core (11), the other end and the reverse osmosis filter core
(11) water inlet connection, and the reflow line is equipped with the 4th valve system for controlling its break-make；
The concentrated water outlet of the reverse osmosis filter core (11) is connected with concentrated water discharge main line (12), reverse osmosis filter core (11) enter
The mouth of a river is equipped with into water main line (13), concentrated water discharge main line (12) and it is described enter water main line (13) between be connected with：
Equipped with the first scouring electromagnetic valve (15), flow path is rinsed to form described first for the first branch (14)；
The second branch (16), equipped with the first normally opened concentrated water ratio (17), the second normally opened concentrated water ratio (18) and the second scouring electromagnetic valve
(19), after the described second normally opened concentrated water ratio (18) is in parallel with second scouring electromagnetic valve (19) with the described first normally opened concentrated water ratio
(17) connect, the water outlet of the second normally opened concentrated water ratio (18) is connected with the external world, the first normally opened concentrated water ratio (17) and
Flow path where second scouring electromagnetic valve (19) forms described second and rinses flow path, the first normally opened concentrated water ratio (17) and institute
Flow path where stating the second normally opened concentrated water ratio (18) forms the concentrated water discharge flow path；
3rd branch (20), equipped with the 3rd normally opened concentrated water ratio (21) and return flow solenoid valve (22), to form the reflow line.
2. water purifier as described in claim 1, which is characterized in that it is described enter water main line (13) be equipped with booster pump (23).
3. water purifier as claimed in claim 2, which is characterized in that further include and enter water main line (13) upstream extremely described in being arranged on
The preposition filter core of few level-one.
4. water purifier as claimed in claim 2, which is characterized in that further include the pure water for being arranged on the reverse osmosis filter core (11)
At least level-one postposition filter core of outlet downstream.
5. a kind of water purifier, including reverse osmosis filter core (11), which is characterized in that further include：
First rinses flow path, one end and the concentrated water outlet, the other end and the reverse osmosis filter of the reverse osmosis filter core (11)
The water inlet connection of core (11), and the first flushing flow path is equipped with to control the first valve system of its break-make；
Second rinses flow path, one end and the concentrated water outlet, the other end and the reverse osmosis filter of the reverse osmosis filter core (11)
The water inlet connection of core (11), the second flushing flow path are equipped with to control its break-make and can carry out the of pulse-type drainage
Two valve systems；
Concentrated water discharge flow path, one end and the concentrated water outlet of the reverse osmosis filter core (11), the other end are used to discharge concentrated water
To the external world, the concentrated water discharge flow path is equipped with the 3rd valve system for controlling its break-make；
Reflow line, one end and the concentrated water outlet of the reverse osmosis filter core (11), the other end and the reverse osmosis filter core
(11) water inlet connection, and the reflow line is equipped with the 4th valve system for controlling its break-make；
The concentrated water outlet of the reverse osmosis filter core (11) is connected with concentrated water discharge main line (12), reverse osmosis filter core (11) enter
The mouth of a river is equipped with into water main line (13), concentrated water discharge main line (12) and it is described enter water main line (13) between be connected with：
The first branch (14), equipped with the first scouring electromagnetic valve (15), the second scouring electromagnetic valve (19), the first normally opened concentrated water ratio (17)
And the second normally opened concentrated water ratio (18), first scouring electromagnetic valve (15) and the first normally opened concentrated water ratio (17) are in parallel,
Second scouring electromagnetic valve (19) and the second normally opened concentrated water ratio (18) are in parallel, and two parallel flow paths are in series, institute
Flow path where stating the first scouring electromagnetic valve (15) and second scouring electromagnetic valve (19) forms described first and rinses flow path, described
First scouring electromagnetic valve (15) and the second normally opened concentrated water ratio (18) or second scouring electromagnetic valve (19) and described
Flow path where one normally opened concentrated water ratio (17) forms described second and rinses flow path, the first normally opened concentrated water ratio (17) and described second
Flow path where normally opened concentrated water ratio (18) forms the concentrated water discharge flow path；
The second branch (16), equipped with the 3rd normally opened concentrated water ratio (21) and return flow solenoid valve (22), to form the reflow line.
6. water purifier as claimed in claim 5, which is characterized in that it is described enter water main line (13) be equipped with booster pump (23).
7. water purifier as claimed in claim 6, which is characterized in that further include and enter water main line (13) upstream extremely described in being arranged on
The preposition filter core of few level-one.
8. water purifier as claimed in claim 6, which is characterized in that further include the pure water for being arranged on the reverse osmosis filter core (11)
At least level-one postposition filter core of outlet downstream.
9. a kind of control method of water purifier, based on such as claim 1-8 any one of them water purifier, which is characterized in that institute
It states after water purifier powers on, including step：
S1, the first valve system control described first rinse flow path conducting, the reverse osmosis filter core (11) are rinsed；
S2, after being rinsed a seconds to the reverse osmosis filter core (11), first valve system, second valve system close
It closes, the 4th valve system is closed, the 3rd valve system opening, so that concentrated water drainage goes out the external world；
S3, concentrated water drainage go out it is b seconds extraneous after, second valve system, the 4th valve system open, the 3rd valve system close,
So that a concentrated water part for the discharge of the reverse osmosis filter core (11) rinses flow path to the reverse osmosis filter core by described second
(11) it is rinsed, another part is flow back by the reflow line in the reverse osmosis filter core (11)；
S4, after second valve system, the 4th valve system are opened c seconds, second valve system, the 4th valve system close
It closes, the 3rd valve system is opened, and the concentrated water is discharged outside to；
S5, during the water purification mechanism pure water, repeating said steps S2, S3 and S4；
Wherein, a ＞ 0, b ＞ 0, c ＞ 0.
10. control method as claimed in claim 9, which is characterized in that the water purification mechanism pure water time reach d it is small when after,
First valve system is opened, and second valve system, the 3rd valve system and the 4th valve system are closed, described
Reverse osmosis filter core (11) concentrated water outlet outflow concentrated water by described first rinse flow path to the reverse osmosis filter core (11) into
Row rinses, and after washing time reaches e seconds, first valve system is closed, wherein, d ＞ 0, e ＞ 0.
11. the control method as described in claim 9 or 10, which is characterized in that the pressure in the pressure pot of the water purifier
During more than preset high-pressure value, first valve system is opened, second valve system, the 3rd valve system and the described 4th
Valve system is closed, and the concentrated water of the concentrated water outlet outflow of the reverse osmosis filter core (11) rinses flow path to described by described first
Reverse osmosis filter core (11) is rinsed, and after washing time reaches f seconds, first valve system is closed, wherein, f ＞ 0.
12. the control method as described in claim 9 or 10, which is characterized in that the pressure in the pressure pot of the water purifier
During less than pre-set low pressure value, first valve system is opened, second valve system, the 3rd valve system and the described 4th
Valve system is closed, and the concentrated water of the concentrated water outlet outflow of the reverse osmosis filter core (11) rinses flow path to described by described first
Reverse osmosis filter core (11) is rinsed, and after washing time reaches g seconds, first valve system is closed, wherein, g >=0.
13. control method as claimed in claim 9, which is characterized in that in the step S3 and S4, into the reverse osmosis filter
When the raw water TDS values of core (11) are less than predetermined low level, described b seconds is b1 seconds, and described c seconds is c1 seconds；Into the reverse osmosis filter
When the raw water TDS values of core (11) are more than predetermined low level and are less than default high level, described b seconds is b2 seconds, and described c seconds is c2 seconds；Into
When entering the raw water TDS values of the reverse osmosis filter core (11) more than default high level, described b seconds is b3 seconds, and described c seconds is c3 seconds；Its
In, 0 ＜ b1 ＜ b2 ＜ b3,0 ＜ c1 ＜ c2 ＜ c3.
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108619781A (en) * | 2017-03-21 | 2018-10-09 | 芜湖美的厨卫电器制造有限公司 | Purifier and its filter core flush control method |
| CN107601622A (en) * | 2017-09-18 | 2018-01-19 | 珠海格力电器股份有限公司 | water treatment system and control method thereof |
| CN107684773A (en) * | 2017-10-13 | 2018-02-13 | 珠海格力电器股份有限公司 | Cleaning method and cleaning system for filter element of water purifying device and water purifying device |
| CN107935222A (en) * | 2017-12-22 | 2018-04-20 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| CN108128910B (en) * | 2017-12-22 | 2024-02-09 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| CN108773920B (en) * | 2018-05-25 | 2023-07-28 | 珠海格力电器股份有限公司 | Water purification system, water purification method and device |
| CN108726715B (en) * | 2018-07-25 | 2024-01-30 | 珠海格力电器股份有限公司 | Water treatment system and water purification equipment |
| CN108975540B (en) * | 2018-08-24 | 2023-09-22 | 珠海格力电器股份有限公司 | Water purification system and water purifier |
| CN108975543B (en) * | 2018-08-24 | 2023-09-19 | 珠海格力电器股份有限公司 | Water purification system and water purifier |
| CN108975542B (en) * | 2018-08-24 | 2023-09-19 | 珠海格力电器股份有限公司 | Water purification system and water purifier |
| CN109224862A (en) * | 2018-08-24 | 2019-01-18 | 珠海格力电器股份有限公司 | Water treatment system and control method thereof |
| CN109569306B (en) * | 2019-01-23 | 2020-01-17 | 珠海格力电器股份有限公司 | Reverse osmosis membrane flushing control method and reverse osmosis membrane flushing system |
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