CN107601622A - water treatment system and control method thereof - Google Patents
water treatment system and control method thereof Download PDFInfo
- Publication number
- CN107601622A CN107601622A CN201710841544.4A CN201710841544A CN107601622A CN 107601622 A CN107601622 A CN 107601622A CN 201710841544 A CN201710841544 A CN 201710841544A CN 107601622 A CN107601622 A CN 107601622A
- Authority
- CN
- China
- Prior art keywords
- water
- backwater
- blow
- concentrated water
- switch valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 315
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 27
- 238000000746 purification Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 50
- 238000011084 recovery Methods 0.000 claims description 47
- 239000002351 wastewater Substances 0.000 claims description 28
- 239000012141 concentrate Substances 0.000 claims description 13
- 239000002699 waste material Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 abstract description 8
- 239000008213 purified water Substances 0.000 abstract 1
- 238000001223 reverse osmosis Methods 0.000 description 9
- 239000012528 membrane Substances 0.000 description 7
- 230000010287 polarization Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a water treatment system and a control method of the water treatment system, wherein the water treatment system is provided with a filtering unit on a waterway, the filtering unit is provided with a purified water outlet and a concentrated water outlet, the water treatment system also comprises a concentrated water treatment unit connected with the concentrated water outlet, the concentrated water treatment unit comprises at least two concentrated water discharge branches and at least two concentrated water return branches, and the concentrated water return branches return the concentrated water of the filtering unit to the upstream side of the filtering unit. The water treatment system in this application is provided with dense water processing unit, dense water processing unit includes two at least dense water discharge branch roads and two at least dense water return branch roads, has enlarged the adjustable scope of water treatment system, can solve the water conservation difficult problem that water purification system received quality of water/temperature factor to bring.
Description
Technical field
The present invention relates to water-treatment technology field, and in particular to a kind of water treatment system and its control method.
Background technology
Counter-infiltration system typically carries pretreatment unit, supercharging device and reverse osmosis membrane filtration device, and raw water passes through reverse osmosis
Water purification and concentrated water can be divided into after permeable membrane filter.The ratio of existing counter-infiltration system water purification and waste water is 1:Less than 1, recovery
Rate≤50%.Some systems use concentrate recirculation on the market, can improve the system rate of recovery.This reverse osmosis water purifier is not
Pervasive, in the area that water quality is poor, the pollution speed of reverse osmosis membrane is relative to be accelerated, and service life drastically shortens.China is located in
North temperate zone, winter, originally some areas of water temperature can as little as 5 degree.Pure water and concentrated water ratio are heightened when although domestic water purification machine dispatches from the factory
To 1：1, i.e., 25 DEG C of water temperature when raw water utilization rate be 50%, but pure water and concentrated water ratio can still be down to 1 when water temperature in winter is low：4-8.
Such originally water use efficiency can allow user to feel very puzzled！
The content of the invention
In view of this, an object of the present invention is to provide a kind of can adjust water treatment system according to different situations
The water treatment system of backwater amount and displacement, and a kind of life-span that can extend filter membrane while backwater amount is increased is provided
The control method of water treatment system.
To reach above-mentioned purpose, on the one hand, the present invention uses following technical scheme：
A kind of water treatment system, is provided with filter element on water route, and the filter element has pure water inlet and concentrated water
Outlet, the water treatment system also include the concentrated water processing unit being connected with concentrated water outlet, the concentrated water processing unit
Including at least two concentrated water discharge branch roads and at least two concentrated water backwater branch roads, the concentrated water backwater branch road is by the filter element
Concentrate recirculation to the upstream side of the filter element.
Preferably, supercharging device, the downstream of the concentrated water backwater branch road are provided with the upstream side of the filter element
It is connected to the upstream side of the supercharging device.
Preferably, switch valve and waste discharge ratio are provided with every concentrated water discharge branch road；And/or every institute
State and be provided with switch valve and backwater waste water ratio on concentrated water backwater branch road.
Preferably, the waste discharge on the different concentrated water discharge branch roads than throttle degree it is different；And/or different institutes
The throttle degree for stating the backwater waste water ratio on concentrated water backwater branch road is different.
Preferably, the concentrated water discharge branch road includes three, respectively the first concentrated water discharge branch road, the second concentrated water discharge
Branch road and the 3rd concentrated water discharge branch road, the first discharge waste water ratio and the first blow-off cock are provided with the first concentrated water discharge branch road
Valve；The second discharge waste water ratio and the second blow-off cock valve are provided with the second concentrated water discharge branch road；In the 3rd concentrated water discharge branch
The 3rd waste discharge ratio and the 3rd blow-off cock valve are provided with road；And/or
The concentrated water backwater branch road includes two, respectively the first concentrated water backwater branch road and the second concentrated water backwater branch road,
The first backwater waste water ratio and the first backwater switch valve are provided with the first concentrated water backwater branch road, is returned in second concentrated water
The second backwater waste water ratio and the second backwater switch valve are provided with water branch road.
Detection means is preferably additionally provided with water route, for detecting water temperature, TDS, the hardness of the water in the water route
And/or basicity.
Preferably, in addition to controller, the controller is with setting on the detection means, the concentrated water discharge branch road
The switch valve set on switch valve and the concentrated water backwater branch road is connected, for the result control detected according to the detection means
Make the opening and closing of the switch valve.
Preferably, the upstream side of filter element is provided with pretreatment unit on water route, and the detection means is arranged on institute
State the upstream side of pretreatment unit, and/or, the detection means be arranged on the pretreatment unit and the filter element it
Between.
According to the second aspect of the invention, adopt the following technical scheme that：
A kind of control method of water treatment system, according at least two concentrated water discharge branch roads and at least two concentrated waters are returned
The difference for the switch valve opened on water branch road determines multiple operational modes, alternate run between multiple operational modes.
According to the third aspect of the invention we, adopt the following technical scheme that：
A kind of control method of water treatment system, the controller is according to the output control that the detection means detects
The opening and closing of switch valve.
Preferably, as the water degradation that the detection means detects, the controller control the switch valve,
So that the quantity in open mode is reduced in switch valve on the concentrated water backwater branch road；And/or
So that the quantity increase in open mode in switch valve on the concentrated water discharge branch road.
Preferably, with detection means detection water temperature from low to high, the controller controls the switch valve, makes
The quantity in open mode in the switch valve on the concentrated water backwater branch road is obtained to reduce；And/or so that the concentrated water discharge branch
Quantity increase in open mode in switch valve on road.
According to the fourth aspect of the invention, adopt the following technical scheme that：
A kind of control method of water treatment system, the control method include：
When water quality preferably when, the system uses high-recovery mode operation, or, the system uses high-recovery mould
After formula operation, using overall pulse mode operation；
And/or
When water quality is medium, rate of recovery mode operation during the system uses, or, the rate of recovery during the system uses
After mode operation, using overall pulse mode operation；
And/or
When water quality is poor, the system uses low rate of recovery pattern or non-recovery mode operation, or, the system is adopted
After low rate of recovery pattern or non-recovery mode operation, using overall pulse mode operation.
Preferably, the upstream side of filter element is provided with pretreatment unit on water route, and the water treatment system also includes
The detection means of the pretreatment unit upstream side is arranged on, for being detected to water quality, when detection means detects raw water
TDS ＜ 300mg/l when, the following patterns of system operation：
Mode A：Close the first backwater switch valve, the first blow-off cock valve, the second blow-off cock valve, the 3rd blow-off cock valve
Closing, the second backwater switch valve is opened, running time T 1,
Mode B：Open the first backwater switch valve and the second backwater switch valve and the second blow-off cock valve and the 3rd discharge
Valve is closed to close, the first blow-off cock valve is opened, running time T 2,
Pattern C：Close the second backwater switch valve, the first backwater switch valve, the 3rd blow-off cock valve, the first blow-off cock
Valve, the second blow-off cock valve are opened, running time T 3,
Operational mode A time T1, then switch to Mode B and pattern C alternate runs t times；
And/or
When detection means detects raw water 300≤TDS ＜ 600mg/l, the following patterns of system operation：
Pattern D：Close the first blow-off cock valve, the 3rd blow-off cock valve, the second backwater switch valve, the first backwater switch
Valve and the second blow-off cock valve are opened, running time T 4,
Pattern E：Close the second backwater switch valve, the first backwater switch valve, the 3rd blow-off cock valve, the first blow-off cock valve
Closing, the second blow-off cock valve is opened, running time T 5,
Model F：Second backwater switch valve, the first backwater switch valve, the 3rd blow-off cock valve are closed, the second blow-off cock
Valve, the first blow-off cock valve are opened, running time T 6,
After pattern D running time Ts 4, circular flow pattern E and model F successively, circular flow t times；
And/or
As detection means detection raw water TDS >=600, the following patterns of system operation：
Pattern G：Close the second backwater switch valve, the 3rd blow-off cock valve, the first backwater switch valve, the second blow-off cock
Valve, the first blow-off cock valve are opened, running time T 7,
Pattern H：Close the second backwater switch valve, the first backwater switch valve, the 3rd blow-off cock valve, the second blow-off cock
Valve, the first blow-off cock valve are opened, running time T 8,
Pattern I：Close the second backwater switch valve, the first backwater switch valve, the first blow-off cock valve, the second blow-off cock
Valve, the 3rd blow-off cock valve are opened, running time T 9,
Pattern J：Second backwater switch valve, the first backwater switch valve are closed, the second blow-off cock valve, the 3rd blow-off cock
Valve, the first blow-off cock valve are opened, running time T 10,
Followed successively according to pattern G, pattern H, pattern I and pattern J circular flows successively, or selection wherein at least 2 kinds of patterns
Inscription of loop, cycle-index t times.
Preferably, wherein,
Circular flow number t >=1；And/or
T1 time ranges are：It is less than or equal to 5 minutes more than 0；And/or
T2, T3 time range is：It is less than or equal to 2 minutes more than 0, and T2/T3 ＞ 2；And/or
T4 time ranges are：It is less than or equal to 5 minutes more than 0；And/or
T5, T6 time range is：It is less than or equal to 2 minutes more than 0, also, 2 ＞ T5/T6 ＞ 1；And/or
T7 time ranges are：It is less than or equal to 5 minutes more than 0；And/or
T8, T9, T10 time range is：It is less than or equal to 2 minutes more than 0, also, 0 ＜ T8/T9 ＜ 1；0 ＜ T9/T10 ＜
1,2 ＞ T7/T10 ＞ 1.
Water treatment system in the application, is provided with concentrated water processing unit, and the concentrated water processing unit includes at least two
Concentrated water discharge branch road and at least two concentrated water backwater branch roads, the concentrated water backwater branch road arrive the concentrate recirculation of the filter element
The upstream side of the filter element, can as the case may be, such as according to water quality or water temperature, control system concentrate recirculation/dense
Water drain time ratio or flow proportional, the adjustable scope of water treatment system is expanded, three kinds or more can be used
Mode of operation alternate run, the rate of recovery of concentrated water amount and system is conveniently adjusted, realizes the stepless regulating system rate of recovery, can also led to
Concentrated water discharge branch road is overregulated with quantity that concentrated water backwater branch road connects to determine different operational modes, it is different by running
Operational mode extends the life-span of the filter core of filter element.Water treatment system in the application, it can show in the good area of water quality
The raising system rate of recovery is write to more than 80%, the area of water quality inferiority can also effectively protect the reverse osmosis membrane filter element life-span；Water temperature is low
When, by controlling concentrate recirculation/concentrated water discharge time scale or flow proportional, ensure that the system rate of recovery is not limited by water temperature.Solution
The water saving problem that certainly water cleaning systems are brought by water quality/water temperature factor.The water treatment system of the application, controller is provided with, controlled
The concentrate recirculation of system/concentrated water discharge time scale or flow proportional, height rate of recovery pattern alternate run is realized, breaks film surface
Concentration polarization layer, extend counter-infiltration filter element life.
Brief description of the drawings
By the description to the embodiment of the present invention referring to the drawings, above-mentioned and other purpose of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the structural representation for the water treatment system that the specific embodiment of the invention provides.
Embodiment
Below based on embodiment, present invention is described, it should be understood by one skilled in the art that provided herein
Accompanying drawing is provided to the purpose of explanation, and accompanying drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc.
Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but is not limited to "
Justice.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
As shown in figure 1, the application provides a kind of water treatment system, pretreatment unit 1 is provided with water route and filtering is single
Member 2, the filter element 2 are preferably reverse osmosis units.The filter element 2 has pure water inlet 21 and concentrated water outlet 22, institute
Discharging device can be connected for users to use by stating pure water inlet 21, and the concentrated water outlet 22 is produced for exporting the filter element 2
Raw concentrated water.The water treatment system also include with the concentrated water processing units 3 that are connected of concentrated water outlet 22, at the concentrated water
Reason unit 3 includes at least two concentrated water discharge branch roads 31 and at least two concentrated water backwater branch roads 32, the concentrated water discharge branch road 31
For concentrated water discharge to be gone out, the concentrated water backwater branch road 32 is used for concentrate recirculation caused by the filter element 2 described in
The upstream side of filter element 2.Preferably, switch valve and waste water ratio are provided with every concentrated water discharge branch road 31；It is dense at every
Switch valve and waste water ratio are also equipped with water backwater branch road 32, is respectively used to concentrated water discharge branch road and the progress of concentrated water backwater branch road
Control, realizes different processing modes.
Preferably, the waste discharge on different concentrated water discharge branch roads 31 than throttle degree it is different, different concentrated waters are returned
The throttle degree of backwater waste water ratio on water branch road 32 is also different.So, can by select different concentrated water discharge branch roads 31 or
Person different concentrated water backwater branch road 32 adjusts concentrated water discharge ratio and backwater ratio, expands adjustable scope.
In a preferred embodiment, the concentrated water discharge branch road 31 includes three, respectively the first concentrated water discharge branch
Road 311, the second concentrated water discharge branch road 312 and the 3rd concentrated water discharge branch road 313, are provided with the first concentrated water discharge branch road 311
The first discharge blow-off cock valve 3112 of waste water ratio 3111 and first；The second discharge is provided with the second concentrated water discharge branch road 312
The blow-off cock valve 3122 of waste water ratio 3121 and second；The 3rd waste discharge ratio is provided with the 3rd concentrated water discharge branch road 313
3131 and the 3rd blow-off cock valve 3132.Wherein, the first discharge waste water ratio 3111, second discharges waste water ratio the 3121, the 3rd
Throttle degree of the waste discharge than 3131 is different, can be adjusted by selecting different discharge branch roads by concentrated water discharge branch road
The amount of the concentrated water of discharge, the first blow-off cock valve 3112, the second blow-off cock valve 3122, the 3rd blow-off cock valve 3132 can divide
The opening and closing of the first concentrated water discharge branch road 311, the second concentrated water discharge branch road 312 and the 3rd concentrated water discharge branch road 313 Yong Lai not controlled.
The concentrated water backwater branch road 32 includes two, respectively the first concentrated water backwater branch road 321 and the second concentrated water backwater
Branch road 322, the first backwater waste water ratio 3211 and the first backwater switch valve are provided with the first concentrated water backwater branch road 321
3212, the second backwater waste water ratio 3221 and the second backwater switch valve 3222 are provided with the second concentrated water backwater branch road 322,
Wherein preferably, the throttle degree of the backwater waste water ratio 3221 of the first backwater waste water ratio 3,211 second is different, can be used for adjusting
Section returns to the backwater amount of the concentrated water of the upstream side of filter element 2, and then adjusts backwater rate.The first backwater switch valve 3212
It is respectively used to control opening for the first concentrated water backwater branch road 321 and the second concentrated water backwater branch road 322 with the second backwater switch valve 3222
Close.
Above-described embodiment is an example, can set more concentrated water discharge branch roads and more concentrated water backwater branch
Road, to realize the step-less adjustment of concentrated water discharge and backwater so that adjustable extent is bigger.
Preferably, all waste discharges ratio and backwater waste water ratio are all waste water ratio electromagnetic valves, and all switch valves are all
Magnetic valve, it can so facilitate the control to these valves.
Preferably, the upstream side of the filter element 2 is provided with supercharging device 4, for example, booster pump, can is that filtering is single
Member 2 provides operating pressure, and the downstream of the concentrated water backwater branch road 32 is connected to the upstream side of the supercharging device 4 so that returns
The concentrated water of stream can enter in the filter element 2 through the supercharging device to be handled again, increases the utilization rate of raw water.
Preferably, be additionally provided with detection means 5 on water route, the water quality detection fill 5 can be arranged on it is multiple on water route
Position, multiple positions that can also be on water route set multiple detection means simultaneously.Preferably, the detection means 5 is arranged on
The upstream side of the pretreatment unit 1, or, the detection means 5 is arranged on the pretreatment unit 1 and the filter element
Between 2.Detection means 5 can detect raw water, pure water or concentrated water water quality parameter, and water quality parameter includes but is not limited to water temperature, TDS, hard
Degree, basicity etc..
In another preferred embodiment, the detection means 5 can also be provided at the upstream side of supercharging device 4, the mistake
Downstream, the concentrate recirculation branch road 32 for filtering unit 2 are first-class.Detection means can test water quality TDS, water temperature, water hardness, water quality alkali
Degree etc..
Preferably, the water treatment system in the application also includes the (not shown) of controller 6, the controller 6 and institute
State detection means 5, all waste discharges are connected than, all switch valves, for the result detected according to the detection means
These waste discharges are controlled to realize different operational modes than the opening and closing with switch valve.
The application also provides a kind of control method to above-mentioned water treatment system, in the control method, the controller 6
The opening and closing of switch valve described in the output control detected according to the detection means.
In a preferred embodiment, according to the switch valve opened on concentrated water discharge branch road 31 and concentrated water backwater branch road 32
Difference determines multiple operational modes, such as the comparison of the switch valve opening on concentrated water backwater branch road 32 is more, concentrated water discharge branch road 31
On switch valve open it is fewer when high-recovery pattern, switch valve and concentrated water discharge branch road on concentrated water backwater branch road 32
The middle rate of recovery pattern when ratio that switch valve on 31 is opened is more uniform, the switch valve on concentrated water backwater branch road 32 open it is few very
Switch valve on to Close All, concentrated water discharge branch road 31 open it is more when low rate of recovery pattern or non-recovery pattern etc.
Multiple operational modes.Preferably, the water treatment system in the application also includes overall pulse pattern, and the overall pulse pattern is at least
Two operational mode alternate runs so that the reverse osmosis membrane crossflow velocity height in filter element 2 alternately changes, pulsed row
It is useless, film surface concentration polarization layer is disturbed, reduces concentration polarization phenomenon, so that the indissoluble ion such as calcium, magnesium is not easy to precipitate, can be with dense
Water flows away, and the control method can greatly prolong the life-span of pretreatment unit 1 and filter element 2.
In a preferred embodiment, when detection means 5 detect water quality preferably when, the system uses high-recovery mould
Formula is run, or, after the system uses high-recovery mode operation for a period of time, using overall pulse mode operation；
When water quality is medium, rate of recovery mode operation during the system uses, or, the rate of recovery during the system uses
Mode operation for a period of time after, using overall pulse mode operation；
When water quality is poor, the system uses low rate of recovery pattern or non-recovery mode operation, or, the system is adopted
With low rate of recovery pattern or non-recovery mode operation for a period of time after, using overall pulse mode operation.
In a preferred embodiment, specific control method process is as follows.
Embodiment one
In this embodiment, detection means 5 is arranged on the upstream side of pretreatment unit 1, when detection means 5 tests raw water
During TDS ＜ 30mg/l, the following patterns of system operation：
Mode A：Controller 6 controls the first backwater switch valve 3212, the first blow-off cock valve 3112, the second blow-off cock valve
3122nd, the 3rd blow-off cock valve 3132 is closed so that the first concentrated water backwater branch road 321, the first concentrated water discharge branch road 311, second
The concentrated water discharge branch road 313 of concentrated water discharge branch road 312 and the 3rd is disconnected, and only the second backwater switch valve 3222 is opened, and concentrated water is carried out
All backflows, running time T 1；
Mode B：Control the first backwater switch valve 3212 and the second backwater switch valve 3222 and the second blow-off cock
The blow-off cock valve 3132 of valve 3122 and the 3rd is closed, and the first blow-off cock valve 3112 is opened, and concentrated water is by the first discharge waste water ratio
3111 discharges, running time T 2；
Pattern C：The second backwater switch valve 3222, the first backwater switch valve 3222, the 3rd blow-off cock valve 3132 is controlled to close
Close, the first blow-off cock valve 3112, the second blow-off cock valve 3122 are opened, and concentrated water is by the first discharge waste water ratio 3111, second
Waste discharge is than 3121 discharges, running time T 3；
Wherein, Mode B and pattern C alternate frequencies t times.
T1 time ranges are preferably：0~5min；
T2 and T3 time ranges are preferably：0-2min；T2/T3 ＞ 2；
T >=1 time.
Such as when t is 2, first operational mode A, rerun Mode B, then operational mode C, the Mode B that then reruns, again
Operational mode C.
Operational mode A certain times, all backflow is remarkably improved the system rate of recovery to concentrated water, and the system rate of recovery is 100%；
Then switch to Mode B and pattern C alternate run certain times, the system rate of recovery by up to to low, filtering is single in as little as
Reverse osmosis membrane crossflow velocity height in member 2 alternately changes, and pulsed waste discharge, disturbs film surface concentration polarization layer, reduces concentration polarization
Change phenomenon, so that the indissoluble ion such as calcium, magnesium is not easy to precipitate, can be flowed away with concentrated water, the control method can greatly prolong pre- place
Manage the life-span of unit 1 and filter element 2.User can according to respective demand independent assortment Mode A B C, realize long-life pattern,
Or water conservation mode.
The detection means 5 is placed on the upstream side of pretreatment unit 1, when detection means 5 tests 300≤TDS of raw water ＜
During 600mg/l, the following patterns of system operation：
Pattern D：Controller 6 controls the first blow-off cock valve 3112, the 3rd blow-off cock valve 3132 to close, and the second backwater is opened
Close valve 3222, the first backwater switch valve 3222 and the second blow-off cock valve 3122 to open, part concentrated water is through the second backwater waste water ratio
3221 and first backwater waste water ratio 3211 be back to the upstream side of supercharging device 4, part concentrated water is through the second discharge waste water ratio 3121
Discharge, running time T 4；
Pattern E：Second backwater switch valve 3222, the first backwater switch valve 3222, the 3rd blow-off cock valve 3132, first row
Put switch valve 3112 to close, the second blow-off cock valve 3122 is opened, and concentrated water is discharged by the second discharge waste water ratio 3121, during operation
Between T5；
Model F：Second backwater switch valve 3222, the first backwater switch valve 3222, the 3rd blow-off cock valve 3132 are closed, the
Two blow-off cock valves 3122, the first blow-off cock valve 3112 are opened, and concentrated water is useless by the first discharge discharge of waste water ratio 3111, second
Water is than 3121 discharges, running time T 6；
Pattern E and model F alternate frequency t；
T4 time ranges are preferably：0-5min；T5 and T6 time ranges are preferably：0-2min；
2 ＞ (T5/T6) ＞ 1；T >=1 time；After raw water TDS is raised, water degradation, in order to extend pretreatment unit 1 and mistake
The life-span of unit 2 is filtered, target can be reached by above-mentioned control model.
Detection means 5 is placed on the upstream side of pretreatment unit 1, when detection means 5 tests 600≤TDS of raw water≤1000mg/
During l, the following patterns of system operation.
Pattern G：Controller 6 controls the second backwater switch valve 3222, the 3rd blow-off cock valve 3132 to close, and the first backwater is opened
Close valve 3222, the second blow-off cock valve 3122, the first blow-off cock valve 3112 to open, part concentrated water is through the first backwater waste water ratio
3211 are back to the upstream side of supercharging device 4, and part concentrated water discharges the row of waste water ratio 3121 through the first discharge waste water ratio 3111, second
Go out, running time T 7；
Pattern H：Second backwater switch valve 3222, the first backwater switch valve 3222, the 3rd blow-off cock valve 3132 are closed, the
Two blow-off cock valves 3122, the first blow-off cock valve 3112 are opened, and concentrated water is useless by the first discharge discharge of waste water ratio 3111, second
Water is discharged than 3121, running time T 8, and T8 time ranges are preferably：0-2min；
Pattern I：Second backwater switch valve 3222, the first backwater switch valve 3222, the first blow-off cock valve 3112 are closed, the
Two blow-off cock valves 3122, the 3rd blow-off cock valve 3132 are opened, and concentrated water is useless by the second discharge discharge of waste water ratio the 3121, the 3rd
Water is than 3131 discharges, running time T 9；
Pattern J：Second backwater switch valve 3222, the first backwater switch valve 3222 are closed, the second blow-off cock valve 3122,
Three blow-off cock valves 3132, the first blow-off cock valve 3112 are opened, and concentrated water is useless by the first discharge discharge of waste water ratio 3111, second
Water is than the 3121, the 3rd waste discharge than 3131 discharges, running time T 10；
Pattern G, pattern H, pattern I and pattern J alternate run numbers t；Specifically, according to pattern G, pattern H, pattern I and
Pattern J circular flows successively, or selection wherein at least 2 kinds of pattern circular flows successively, cycle-index t times；
T4 time ranges are preferably：0-5min；
T5 and T6 and T7 and T8 time ranges are preferably：0-2min；
Wherein, 0 ＜ T5/T6 ＜ 1；0 ＜ T6/T7 ＜ 1；T >=1 time.
When raw water quality is extremely severe, can be extended pre- by increasing the pulse waste discharge method of operation and height rate of recovery ratio
In the life-span of processing unit 1 and filter element 2, target can be reached by above-mentioned control model.
Water treatment system realizes that water saving, long-life pattern are not limited to above-mentioned control model.The wherein involved time can be designed
For flow etc., user can realize long-life pattern or water conservation mode according to respective demand independent assortment Mode A-J.
Embodiment two
Water temperature height can be detected according to detection means 5, selects above-mentioned Mode A-J, appropriate combination, the low luck of water temperature can be achieved
Row high-recovery pattern；When water temperature is high, operation is high-recovery long-life pattern again.Detection means 5 is arranged on supercharging device 4
Upstream side, such as：When detection means 5 tests 15 DEG C of raw water water temperature ＜, system running pattern can be according to Mode A to Mode B extremely
Pattern C；Mode B is to pattern C to pattern D, alternate run at least 2 times.The long-life pattern of low temperature high-recovery is realized, can basis
Actual conditions carry out independent assortment to above-mentioned operational mode, and control model is not limited to aforesaid way.
Water treatment system in the application, is provided with concentrated water processing unit, and the concentrated water processing unit includes at least two
Concentrated water discharge branch road and at least two concentrated water backwater branch roads, the concentrated water backwater branch road arrive the concentrate recirculation of the filter element
The upstream side of the filter element, can as the case may be, such as according to water quality or water temperature, control system concentrate recirculation/dense
Water drain time ratio or flow proportional, three kinds or more mode of operation alternate run, it is conveniently adjusted concentrated water amount and is
The rate of recovery of system, the stepless regulating system rate of recovery is realized, can also be connected by adjusting concentrated water discharge branch road with concentrated water backwater branch road
Quantity determine different operational modes, by running different operational modes extend the life-span of the filter core of filter element.
Water treatment system in the application, the system rate of recovery can be significantly improved in the good area of water quality to more than 80%, water quality inferiority
Area can also effectively protect the reverse osmosis membrane filter element life-span；When water temperature is low, by controlling concentrate recirculation/concentrated water discharge time scale
Or flow proportional, ensure that the system rate of recovery is not limited by water temperature.It is difficult to solve the water saving that water cleaning systems are brought by water quality/water temperature factor
Topic.The water treatment system of the application, it is provided with controller, the concentrate recirculation/concentrated water discharge time scale or flow of control system
Ratio, height rate of recovery pattern alternate run is realized, break film surface concentration polarization layer, extend counter-infiltration filter element life.The application
Various modes system is simply realized, user can select corresponding modes according to respective demand.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be free
Ground combination, superposition.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention, it is equal
Replace, improve etc., it should be included in the scope of the protection.
Claims (15)
1. a kind of water treatment system, it is characterised in that filter element is provided with water route, there is the filter element water purification to go out
Mouth and concentrated water outlet, the water treatment system also include the concentrated water processing unit being connected with concentrated water outlet, the concentrated water
Processing unit includes at least two concentrated water discharge branch roads and at least two concentrated water backwater branch roads, and the concentrated water backwater branch road is by described in
The concentrate recirculation of filter element is to the upstream side of the filter element.
2. water treatment system according to claim 1, it is characterised in that the upstream side of the filter element is provided with increasing
Pressure device, the downstream of the concentrated water backwater branch road are connected to the upstream side of the supercharging device.
3. water treatment system according to claim 1, it is characterised in that be provided with every concentrated water discharge branch road
Switch valve and waste discharge ratio；And/or
Switch valve and backwater waste water ratio are provided with every concentrated water backwater branch road.
4. water treatment system according to claim 3, it is characterised in that the discharge on the different concentrated water discharge branch roads is given up
Water than throttle degree it is different；And/or
The throttle degree of backwater waste water ratio on the different concentrated water backwater branch roads is different.
5. water treatment system according to claim 3, it is characterised in that
The concentrated water discharge branch road includes three, respectively the first concentrated water discharge branch road, the second concentrated water discharge branch road and the 3rd
Concentrated water discharge branch road, the first discharge waste water ratio and the first blow-off cock valve are provided with the first concentrated water discharge branch road；Second
The second discharge waste water ratio and the second blow-off cock valve are provided with concentrated water discharge branch road；It is provided with the 3rd concentrated water discharge branch road
3rd waste discharge ratio and the 3rd blow-off cock valve；And/or
The concentrated water backwater branch road includes two, respectively the first concentrated water backwater branch road and the second concentrated water backwater branch road, in institute
State and be provided with the first backwater waste water ratio and the first backwater switch valve on the first concentrated water backwater branch road, in the second concentrated water backwater branch
The second backwater waste water ratio and the second backwater switch valve are provided with road.
6. water treatment system according to claim 3, it is characterised in that detection means is additionally provided with water route, is used for
Detect water temperature, TDS, hardness and/or the basicity of the water in the water route.
7. water treatment system according to claim 6, it is characterised in that also including controller, the controller with it is described
The switch valve phase set on the switch valve and the concentrated water backwater branch road set in detection means, the concentrated water discharge branch road
Even, the opening and closing for switch valve described in the output control that is detected according to the detection means.
8. the water treatment system according to claim 6 or 7, it is characterised in that the upstream side of filter element is set on water route
Pretreatment unit is equipped with, the detection means is arranged on the upstream side of the pretreatment unit, and/or, the detection means is set
Put between the pretreatment unit and the filter element.
A kind of 9. control method of water treatment system according to one of claim 3-8, it is characterised in that according to it is described extremely
The difference of few two concentrated water discharge branch roads and the switch valve at least opened on two concentrated water backwater branch roads determines multiple operational modes,
Alternate run between multiple operational modes.
A kind of 10. control method of water treatment system according to claim 7 or 8, it is characterised in that the controller root
According to the opening and closing of switch valve described in the output control of detection means detection.
11. control method according to claim 10, it is characterised in that the water quality detected with the detection means becomes
Difference, the controller control the switch valve,
So that the quantity in open mode is reduced in switch valve on the concentrated water backwater branch road；And/or
So that the quantity increase in open mode in switch valve on the concentrated water discharge branch road.
12. control method according to claim 10, it is characterised in that as the water temperature of detection means detection is by low
To height, the controller controls the switch valve,
So that the quantity in open mode is reduced in switch valve on the concentrated water backwater branch road；And/or
So that the quantity increase in open mode in switch valve on the concentrated water discharge branch road.
A kind of 13. control method of water treatment system according to claim 4, it is characterised in that the control method bag
Include：
When water quality preferably when, the system uses high-recovery mode operation, or, the system using high-recovery pattern transport
After row, using overall pulse mode operation；
And/or
When water quality is medium, rate of recovery mode operation during the system uses, or, rate of recovery pattern during the system uses
After operation, using overall pulse mode operation；
And/or
When water quality is poor, the system uses low rate of recovery pattern or non-recovery mode operation, or, the system is using low
After rate of recovery pattern or non-recovery mode operation, using overall pulse mode operation.
14. control method according to claim 13, it is characterised in that the upstream side of filter element is provided with water route
Pretreatment unit, the water treatment system also includes the detection means for being arranged on the pretreatment unit upstream side, for water
Matter is detected, when detection means detects the TDS ＜ 300mg/l of raw water, the following patterns of system operation：
Mode A：The first backwater switch valve, the first blow-off cock valve, the second blow-off cock valve, the 3rd blow-off cock valve are closed,
Second backwater switch valve is opened, running time T 1,
Mode B：Make the first backwater switch valve and the second backwater switch valve and the second blow-off cock valve and the 3rd blow-off cock valve
To close, the first blow-off cock valve is opened, running time T 2,
Pattern C：The second backwater switch valve, the first backwater switch valve, the 3rd blow-off cock valve are closed, the first blow-off cock valve,
Second blow-off cock valve is opened, running time T 3,
Operational mode A time T1, then switch to Mode B and pattern C alternate runs t times；
And/or
When detection means detects raw water 300≤TDS ＜ 600mg/l, the following patterns of system operation：
Pattern D：Make the first blow-off cock valve, the 3rd blow-off cock valve close, the second backwater switch valve, the first backwater switch valve and
Second blow-off cock valve is opened, running time T 4,
Pattern E：The second backwater switch valve, the first backwater switch valve, the 3rd blow-off cock valve, the first blow-off cock valve are closed,
Second blow-off cock valve is opened, running time T 5,
Model F：Second backwater switch valve, the first backwater switch valve, the 3rd blow-off cock valve are closed,
Second blow-off cock valve, the first blow-off cock valve are opened, running time T 6,
After pattern D running time Ts 4, circular flow pattern E and model F successively, circular flow t times；And/or
As detection means detection raw water TDS >=600, the following patterns of system operation：
Pattern G：Make the second backwater switch valve, the 3rd blow-off cock valve close, the first backwater switch valve, the second blow-off cock valve,
First blow-off cock valve is opened, running time T 7,
Pattern H：The second backwater switch valve, the first backwater switch valve, the 3rd blow-off cock valve are closed, the second blow-off cock valve,
First blow-off cock valve is opened, running time T 8,
Pattern I：The second backwater switch valve, the first backwater switch valve, the first blow-off cock valve are closed, the second blow-off cock valve,
3rd blow-off cock valve is opened, running time T 9,
Pattern J：Second backwater switch valve, the first backwater switch valve are closed, the second blow-off cock valve, the 3rd blow-off cock valve, the
One blow-off cock valve is opened, running time T 10,
According to pattern G, pattern H, pattern I and pattern J circular flows successively, or select wherein at least 2 kinds of patterns circulating successively
OK, cycle-index t times.
15. control method according to claim 14, it is characterised in that wherein,
Circular flow number t >=1；And/or
T1 time ranges are：It is less than or equal to 5 minutes more than 0；And/or
T2, T3 time range is：It is less than or equal to 2 minutes more than 0, and T2/T3 ＞ 2；And/or
T4 time ranges are：It is less than or equal to 5 minutes more than 0；And/or
T5, T6 time range is：It is less than or equal to 2 minutes more than 0, also, 2 ＞ T5/T6 ＞ 1；And/or
T7 time ranges are：It is less than or equal to 5 minutes more than 0；And/or
T8, T9, T10 time range is：It is less than or equal to 2 minutes more than 0, also, 0 ＜ T8/T9 ＜ 1；0 ＜ T9/T10 ＜ 1,2
＞ T7/T10 ＞ 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841544.4A CN107601622A (en) | 2017-09-18 | 2017-09-18 | water treatment system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841544.4A CN107601622A (en) | 2017-09-18 | 2017-09-18 | water treatment system and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107601622A true CN107601622A (en) | 2018-01-19 |
Family
ID=61060689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710841544.4A Pending CN107601622A (en) | 2017-09-18 | 2017-09-18 | water treatment system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107601622A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794102A (en) * | 2018-08-02 | 2020-02-14 | 青岛海尔洗衣机有限公司 | Control method of water quality detection device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006305499A (en) * | 2005-04-28 | 2006-11-09 | Miura Co Ltd | Operating method of membrane filtration system |
| JP2008237972A (en) * | 2007-03-26 | 2008-10-09 | Miura Co Ltd | Membrane filtration system |
| JP2010029757A (en) * | 2008-07-25 | 2010-02-12 | Miura Co Ltd | Membrane filtration system, and operating method of membrane filtration system |
| CN103007756A (en) * | 2011-09-20 | 2013-04-03 | 三浦工业株式会社 | Reverse osmosis membrane separation device |
| CN104355426A (en) * | 2014-10-29 | 2015-02-18 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| CN104628172A (en) * | 2013-11-06 | 2015-05-20 | 珠海格力电器股份有限公司 | Water purifier |
| JP2015164731A (en) * | 2015-05-01 | 2015-09-17 | 三浦工業株式会社 | reverse osmosis membrane separation device |
| CN105621535A (en) * | 2015-12-25 | 2016-06-01 | 上海浩泽净水科技发展有限公司 | Reverse osmosis water purification machine system for automatically adjusting recovery rate and control method thereof |
| CN106277211A (en) * | 2016-10-17 | 2017-01-04 | 珠海格力电器股份有限公司 | Water purifier and control method thereof |
| CN106865803A (en) * | 2017-03-02 | 2017-06-20 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| CN207276268U (en) * | 2017-09-18 | 2018-04-27 | 珠海格力电器股份有限公司 | Water treatment system |
-
2017
- 2017-09-18 CN CN201710841544.4A patent/CN107601622A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006305499A (en) * | 2005-04-28 | 2006-11-09 | Miura Co Ltd | Operating method of membrane filtration system |
| JP2008237972A (en) * | 2007-03-26 | 2008-10-09 | Miura Co Ltd | Membrane filtration system |
| JP2010029757A (en) * | 2008-07-25 | 2010-02-12 | Miura Co Ltd | Membrane filtration system, and operating method of membrane filtration system |
| CN103007756A (en) * | 2011-09-20 | 2013-04-03 | 三浦工业株式会社 | Reverse osmosis membrane separation device |
| CN104628172A (en) * | 2013-11-06 | 2015-05-20 | 珠海格力电器股份有限公司 | Water purifier |
| CN104355426A (en) * | 2014-10-29 | 2015-02-18 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| JP2015164731A (en) * | 2015-05-01 | 2015-09-17 | 三浦工業株式会社 | reverse osmosis membrane separation device |
| CN105621535A (en) * | 2015-12-25 | 2016-06-01 | 上海浩泽净水科技发展有限公司 | Reverse osmosis water purification machine system for automatically adjusting recovery rate and control method thereof |
| CN106277211A (en) * | 2016-10-17 | 2017-01-04 | 珠海格力电器股份有限公司 | Water purifier and control method thereof |
| CN106865803A (en) * | 2017-03-02 | 2017-06-20 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| CN207276268U (en) * | 2017-09-18 | 2018-04-27 | 珠海格力电器股份有限公司 | Water treatment system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794102A (en) * | 2018-08-02 | 2020-02-14 | 青岛海尔洗衣机有限公司 | Control method of water quality detection device |
| CN110794102B (en) * | 2018-08-02 | 2023-08-08 | 重庆海尔洗衣机有限公司 | Control method of water quality detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103964595B (en) | A kind of water purifier and pulsed effluent device and control method | |
| CN101370568A (en) | Improved operating strategies in filtration processes | |
| CN104628172A (en) | Water purifier | |
| CN108975540B (en) | Water purification system and water purifier | |
| CN106396160A (en) | Water purification system and control method thereof | |
| CN106865803A (en) | Water purification system and control method thereof | |
| CN108975543B (en) | Water purification system and water purifier | |
| CN205965523U (en) | Water purifier with reduce pure water TDS value function | |
| CN110028133A (en) | More micro- waste water water purification systems of water quality and its micro- waste water process for purifying water | |
| CN207276268U (en) | Water treatment system | |
| CN107601622A (en) | water treatment system and control method thereof | |
| CN108715475A (en) | A kind of water cleaning systems with pure water rinsing | |
| CN208038154U (en) | Concentrated water discharging device and water purifying system comprising same | |
| CN108862687A (en) | Water purification system with adjustable recovery rate, control method thereof and water purifier | |
| CN203173901U (en) | Water purifier and impulse type waste water discharge device thereof | |
| CN205556171U (en) | Multistage milipore filter festival water purification system | |
| CN107265570A (en) | A kind of automatic back-washing water purifier | |
| CN208003770U (en) | Waste water regulating system based on reverse osmosis water maker reason | |
| CN206985881U (en) | A kind of micro- discharge purifier | |
| CN206886818U (en) | The water quality water purifier of intelligent water-saving three | |
| CN109224862A (en) | Water treatment system and control method thereof | |
| CN108083477A (en) | Concentrated water discharge device, water purification system comprising same and control method | |
| CN208995242U (en) | Water purification system and water purifier | |
| CN214243999U (en) | Rural drinking water nanofiltration water purification device | |
| CN210313645U (en) | Multi-water-quality micro-wastewater purification system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |
|
| RJ01 | Rejection of invention patent application after publication |