CN207957943U - A kind of water cleaning systems - Google Patents
A kind of water cleaning systems Download PDFInfo
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- CN207957943U CN207957943U CN201721845424.3U CN201721845424U CN207957943U CN 207957943 U CN207957943 U CN 207957943U CN 201721845424 U CN201721845424 U CN 201721845424U CN 207957943 U CN207957943 U CN 207957943U
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Abstract
The utility model discloses a kind of water cleaning systems.The water cleaning systems include filter device, the filter device has water inlet, concentrated water outlet and water purification outlet, the concentrated water outlet is connected with concentrated water discharge unit, the concentrated water discharge unit includes return water branch, the outlet end of the return water branch is connect with the water inlet of the filter device, and return water filter element is provided on return water branch road.Return water filter element unit is provided in water cleaning systems provided by the utility model on return water branch road, the colloid and crystal grain in concentrated water can effectively be intercepted, to be pre-processed to concentrated water before concentrated water enters filter device, improves influent quality, extend the service life of filter device.
Description
Technical field
The utility model is related to water purification field, especially a kind of water cleaning systems.
Background technology
The concentrated water outlet of the reverse osmosis membrane filtration device of traditional water cleaning systems is directly connected to blowoff line, and there is the rate of recovery
It is low, the disadvantage more than concentrated water drainage.To improve the rate of recovery of water cleaning systems, traditional water cleaning systems are finished in the prior art
Improvement on structure connects a blowoff line and a water return pipeline, blowdown in the concentrated water exit of reverse osmosis membrane filtration device
Pipeline carries out the discharge of concentrated water, and the water inlet that concentrated water is introduced reverse osmosis membrane filtration device by water return pipeline recycles, passes through
Alternately the mode of opening blowoff line and water return pipeline enables part concentrated water to be introduced into reverse osmosis membrane filtration device and carried out
Filter, to improve the rate of recovery of water cleaning systems.But in the poor application environment of water quality, return water is carried out using water return pipeline
It is easy to cause the dirty stifled of reverse osmosis membrane, the serious curtailments service life of reverse osmosis membrane.
Utility model content
In view of this, one of the purpose of this utility model is to provide a kind of filter material service life that can extend filter device
Water cleaning systems.
In order to achieve the above object, the utility model adopts the following technical solution：
A kind of water cleaning systems, including filter device, the filter device have water inlet, concentrated water outlet and water purification outlet,
The concentrated water outlet is connected with concentrated water discharge unit, and the concentrated water discharge unit includes return water branch, and the return water branch goes out
Mouth end is connect with the water inlet of the filter device, and return water filter element is provided on return water branch road.
Preferably, the return water filter element can be backwashed, and the return water filter element includes first and
Two mouthfuls, the concentrated water outlet of the first and the filter device, described second mouthful with the water inlet of the filter device
Connection, the concentrated water discharge unit further includes drainpipe, and the first is also connected by the first draining branch with the drainpipe
It is logical.
Preferably, the upstream lateral line of the water inlet of the filter device, the other end are accessed in one end of the return water branch
It is exported and is connected by the concentrated water of coupling part and the filter device, one end of the first draining branch connects the draining
Pipe, the other end are exported by the concentrated water of the coupling part and the filter device and are connected.
Preferably, the upstream lateral line upper edge water (flow) direction of the water inlet of the filter device is provided with water inlet switch device
With flow driving device.
Preferably, the coupling part has throttle and/or full-gear.
Preferably, the coupling part includes connection branch, and the connection branch road is provided with flow control valve.
Preferably, the flow control valve is configured to energization standard-sized sheet, power-off throttling.
Preferably, it is provided with first switch device on the first draining branch；And/or
The return water branch road is provided with second switch device.
Preferably, the concentrated water discharge unit further includes the second draining branch, and the second draining branch has throttling shape
State.
Preferably, it is provided with waste water ratio on the second draining branch.
Preferably, the return water branch road is provided with flow detector.
Preferably, the return water filter element includes ultrafiltration membrance filter unit or scale inhibition filter element.
Return water filter element unit is provided in water cleaning systems provided by the utility model on return water branch road, it can be effective
The colloid and crystal grain in concentrated water are intercepted, to be pre-processed to concentrated water before concentrated water enters filter device, improves water inlet water
Matter extends the service life of filter device.
Description of the drawings
By referring to the drawings to the description of the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows one of the schematic diagram of water cleaning systems that specific embodiment of the present invention provides；
Fig. 2 shows the two of the schematic diagram of the water cleaning systems of specific embodiment of the present invention offer.
In figure, 103, inlet valve；104, stabilized pressure pump；105, water quality detecting device；106, the second non-return valve；200, it pre-processes
Unit；300, reverse osmosis membrane filtration device；400, concentrated water discharge unit；411, the first draining branch；412, first switch device；
421, return water branch；422, second switch device；423, return water filter element；424, flow detector；431, branch is connected；
432, waste water ratio electromagnetic valve；441, the second draining branch；442, waste water ratio；451, drainpipe；500, water unit；521, pure water
Pipeline；522, goose-neck type water tap；523, post-processing unit.
Specific implementation mode
The utility model is described below based on embodiment, but the utility model is not restricted to these implementations
Example.It is detailed to describe some specific detail sections below in the datail description of the utility model.To people in the art
The description of part can also understand the utility model completely without these details for member.In order to avoid obscuring the utility model
Essence, there is no narrations in detail for well known method, process, flow, element.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being containing for " including but not limited to "
Justice.
In the description of the present invention, it should be understood that term " first ", " second " etc. are used for description purposes only,
It is not understood to indicate or imply relative importance.In addition, in the description of the present invention, unless otherwise indicated, it is " more
It is a " it is meant that two or more.
It is understood that waste water ratio described herein refers to the journey that throttles during purifier normal use
Spend nonadjustable throttling set.
This application provides a kind of water cleaning systems, typically, as shown in Figure 1, single including being sequentially connected pretreatment by the road
Member 200, filter device, concentrated water discharge unit 400 and water unit 500.Pretreatment unit 200 preferably connects through pressure reducing valve former
Water inlet, raw water are pre-processed into pretreatment unit 200 after pressure reducing valve depressurizes, are then filtered through filter device,
Filtered water purification enters water unit 500, and concentrated water enters concentrated water discharge unit 400.Wherein, pretreatment unit 200 can be adopted
With serial or parallel connection mode, it is pp cottons+activated carbon, paper folding filter core+activated carbon, ultrafiltration membrane+activated carbon and two to include but not limited to
Branch GAC parallel connections etc..Pretreatment unit 200 is filled through low tension switch 102, water inlet switch device and flow driving device and filtering successively
Set connection.Water inlet switch device for example can be inlet valve 103 shown in FIG. 1, and flow driving device for example can be shown in Fig. 1
Stabilized pressure pump 104.Filter device can be for example reverse osmosis membrane filtration device 300, it is, of course, understood that reverse osmosis membrane
Filter device 300 can also be substituted by other structures with filtering function.Reverse osmosis membrane filtration device 300 have water inlet,
Concentrated water exports and water purification outlet, wherein water inlet is connect with stabilized pressure pump 104, and water purification outlet connects water unit 500, and water outlet is single
Member preferably includes two branches, and one is pressure pot pipeline, and the end of pressure pot pipeline connects pressure pot, excellent on pressure pot pipeline
Choosing is provided with high-voltage switch gear；Another is pure water pipeline 521, and the end of pure water pipeline 521 connects goose-neck type water tap 522, pure water
It is preferably provided with post-processing unit 523 on pipeline 521, post-processing unit 523 for example can be composite filter element (such as carbon-point+super
Filter membrane) or post active carbon filter core, through reverse osmosis membrane filtration device 300, treated that water purification can enter pressure through pressure pot pipeline
It stores in power bucket, can also be flowed out for users to use through pure water pipeline 521 and goose-neck type water tap 522.In other examples,
Pressure pot can also be saved.
Concentrated water outlet connection concentrated water discharge unit 400, concentrated water discharge unit 400 include the first draining branch 411 and return water
Branch 421, wherein the first draining branch 411 is connect with drainpipe 451, for water cleaning systems, return water branch to be discharged in waste water
421 outlet end is connect with the water inlet of reverse osmosis membrane filtration device 300, for the water of concentrated water outlet outflow to be backed into reverse osmosis
The water inlet of permeable membrane filter device 300.Since return water branch 421 backs into return water the water inlet of reverse osmosis membrane filtration device 300
Mouthful, when water quality is poor, reverse osmosis membrane easily occur it is dirty stifled, for this problem, it is preferable that be arranged on return water branch 421
Have return water filter element 423, by return water filter element 423 effectively intercept concentrated water in colloid and crystal grain, to concentrated water into
Concentrated water is pre-processed before entering reverse osmosis membrane filtration device 300, improves influent quality, extends reverse osmosis membrane filtration device
300 service life.
Return water filter element 423 can be arbitrarily can be to the structure that concentrated water is filtered, such as can be that scale inhibition filters
Unit, ultrafiltration membrance filter unit etc., it is preferable that avoid the frequently dirty stifled system for influencing water cleaning systems of return water filter element 423
Water efficiency and normal use, return water filter element 423 can be backwashed, can be to return water using the water route on water cleaning systems
Filter element 423 carries out back flush, to improve the service life of return water filter element 423.
In a specific embodiment, as shown in Figure 1, return water filter element 423 includes first and second mouthful, return water
Filter element 423 includes filter material and positioned at the first side space of filter material side and positioned at the second side space of the filter material other side,
First is connected to the first side space, and second mouthful is connected to the second side space, the first and reverse osmosis membrane of return water filter element
The concentrated water outlet of filter device 300, second mouthful is connected to the water inlet of reverse osmosis membrane filtration device 300 so that concentrated water goes out
The concentrated water of mouth outflow reenters reverse osmosis membrane mistake after first enters in return water filter element 423 and filters by second mouthful of outflow
Filter the water inlet of device 300.The first of return water filter element 423 is also connected by the first draining branch 411 with drainpipe 451
Logical, when return water filter element 423 is backwashed, water enters return water filter element 423 by second mouthful, single to be filtered to return water
The filter core of member 423 carries out back flush, sweeps away the dirt come and is flowed out by first and through the first draining branch 411 and drainpipe
451 discharge water cleaning systems.
Further, as shown in Figure 1, concentrated water discharge unit 400 further includes coupling part, return water branch 421 and first row
Water branch 411 is exported by the concentrated water of coupling part and reverse osmosis membrane filtration device 300 and is connected, specifically, return water branch 421
One end access reverse osmosis membrane filtration device 300 water inlet upstream lateral line, for example, in the embodiment shown in fig. 1, returning
On pipeline between one end access inlet valve 103 and stabilized pressure pump 104 of water branch 421, the other end passes through coupling part and reverse osmosis
One end of the concentrated water outlet connection of permeable membrane filter device 300, the first draining branch 411 connects drainpipe 451, and the other end passes through company
Socket part point and the concentrated water of reverse osmosis membrane filtration device 300 are exported and are connected.
It is further preferred that the interior circulation flushing flow path and standard-sized sheet of standard-sized sheet can be formed in concentrated water discharge unit 400
Waste discharge flow path, the concentrated water of reverse osmosis membrane filtration device 300 is exported and is connected to water inlet by inner recirculation flow road, in this way, to reverse osmosis
When permeable membrane filter device 300 is rinsed, flow is enabled to go out in water inlet, the influent side space of reverse osmosis membrane and concentrated water
Circulating for high speed is formed between mouthful, since interior circulation flushing flow path is full-gear so that water forms height in surface of filter medium
Flow velocity, the dirt for being deposited in surface of filter medium are easy to be washed away by swiftly flowing water, can effectively extend reverse osmosis membrane filtration
The service life of device 300, in addition, being rinsed to filter material by the interior cycle for then passing through water, effectively save water resource.Waste discharge
Flow path by the concentrated water after inner recirculation flow road is rinsed for being discharged water cleaning systems.
It is thus desirable to which coupling part has throttle and full-gear, coupling part and the return water branch of throttle
421 form return water passage, and coupling part and the return water branch 421 of full-gear form interior circulation flushing flow path, throttle
Coupling part forms the first drainage flow path, the coupling part of full-gear and the first draining branch 411 with the first draining branch 411
Form waste discharge flow path.
In order to realize the throttle and full-gear of coupling part, in the embodiment shown in fig. 1, coupling part includes
Branch 431 is connected, connects and is provided with flow control valve on branch 431, interconnecting piece is realized by the flow control of flow control valve
Divide the switching between throttle and full-gear, flow control valve for example can be waste water ratio electromagnetic valve as shown in Figure 1
432, waste water ratio electromagnetic valve 432 is configured to energization standard-sized sheet, power-off throttling.Certainly, coupling part can also include being arranged in parallel
Waste water ratio and switching device.
The circulation and cut-off of branch 411 are drained in order to facilitate control return water branch 421 and first, it is preferable that in return water branch
It is provided with second switch device 422 on road 421, first switch device 412, first switch are provided on the first draining branch 411
Device 412 and second switch device 422 can be can arbitrarily control the circulation of the first draining branch 411 and return water branch 421/
The structure of cut-off state, for example, in the embodiment shown in fig. 1, first switch device 412 and second switch device 422 are
Solenoid valve passes through the switch of the switch control respective branch of solenoid valve.
It is further preferred that concentrated water discharge unit 400 further includes the second draining branch 441, the one of the second draining branch 441
The concentrated water outlet at end and reverse osmosis membrane filtration device 300, the other end connect drainpipe 451, the second draining formation of branch 441
Second drainage flow path of water cleaning systems, the second draining branch 441 have throttle, for example, in the embodiment shown in fig. 1,
It is provided with waste water ratio 442 on second draining branch 441, in water processed, the second draining branch 441 can be arranged persistently system
It is useless.In alternate embodiments, the flow control valves such as waste water ratio electromagnetic valve can also be set on the second draining branch 441, with logical
It crosses the second draining branch 441 and forms waste discharge flow path.
In a further embodiment, coupling part can also only have throttle, and by second draining branch 441 into
Row waste discharge.
Below its control method is specifically introduced with water cleaning systems shown in FIG. 1.
When water cleaning systems run pulsed reflux aqueous mode, the power-off throttling of waste water ratio electromagnetic valve 432 connects branch 431
In throttle, water cleaning systems alternate run between first state and the second state is controlled, in first state, opens first
Switching device 412 closes second switch device 422, and the water of the concentrated water outlet outflow of reverse osmosis membrane filtration device 300 is successively through even
It connects branch 431, first and drains branch 411 and the discharge water cleaning systems of drainpipe 451, in the second state, closing first switch device
412, second switch device 422 is opened, the water of the concentrated water outlet outflow of reverse osmosis membrane filtration device 300 is successively through connecting branch
431 and return water branch 421 re-start filtering back to the water inlet of reverse osmosis membrane filtration device 300.So so that reverse osmosis
The aquatic environment of film surface constantly changes, you can reverse osmosis membrane fouling is upset, to effective protection reverse osmosis membrane, meanwhile,
Under two states, the water flow for flowing through stabilized pressure pump is basically unchanged, therefore can keep pressure stability before the film of reverse osmosis membrane.It is excellent
Selection of land is run in the first state first when water cleaning systems enter pulsed reflux aqueous mode.
When water cleaning systems run rinse mode, 432 energization standard-sized sheet of waste water ratio electromagnetic valve, connection branch 431 is in standard-sized sheet
State controls water cleaning systems alternate run between the third state and the 4th state, in the third state, opens second switch device
422, first switch device 412 is closed, the water of the concentrated water outlet outflow of reverse osmosis membrane filtration device 300 is successively through connecting branch
431 and return water branch 421 return to reverse osmosis membrane filtration device 300 water inlet, to formed flow high-speed circulating flowing,
First switch device 412 is opened in the 4th state with effective flushing to reverse osmosis membrane, closes second switch device 422, instead
The water of the concentrated water outlet outflow of osmosis membrane filters device 300 drains branch 411 and drainpipe through connecting branch 431, first successively
451 discharge water cleaning systems, to which water cleaning systems are discharged rapidly in the dirt after rinsing.Preferably, when water cleaning systems enter flushing
It is run under the one or four state first when pattern.
Water cleaning systems also have backwash mode, and under backwash mode, control stabilized pressure pump 104 is closed, into
Water valve 103 is in the open state, and connection branch 431 is in throttle, and return water branch 421 and first drains branch 411 and opens,
Such as water cleaning systems run backwash mode when being in standby, and specifically, in the embodiment shown in fig. 1, control waste water
It powers off and throttles than solenoid valve 432, first switch device 412 and second switch device 422 are opened, in this way, raw water enters return water branch
In road 421, water purification is discharged through the first draining branch 411 and drainpipe 451 successively after being backwashed to return water filter element 423
System extends the service life of return water filter element 423 to realize the backwash to return water filter element 423.
Further, as shown in Fig. 2, being provided with flow detector 424 on return water branch 421, flow detector 424
Such as can be flowmeter, when flow detector 424 detect flow value be less than preset value when, illustrate return water branch 421 by
Lead to underfed in dirty block up of return water filter element 423, controls water cleaning systems at this time and enter backwash mode to return water filtering
Unit 423 is backwashed.
The above-mentioned control to each solenoid valve can be realized that the concrete structure of control unit is unlimited, can by control unit
It realizes above-mentioned control function, such as can be microcontroller, control chip etc..
It is further preferred that water cleaning systems further include for detect raw water or reverse osmosis membrane filtration device 300 be discharged it is dense
The water quality detecting device 105 of the TDS values of water, so as to concentrated water discharge unit 400 is controlled according to the TDS values of detection (after
There is specific introduction in face).
Further, since the rate of recovery under first state is relatively low, and the rate of recovery under the second state is higher, therefore, can
Duration by controlling first state and the second state can accurately be adjusted the recycled in its entirety rate of water cleaning systems,
And can realize step-less adjustment and adjustable range is wide, to adapt to the demand of different quality.
Specifically, synthesis is adjusted by controlling the duration b under the duration a and the second state under first state
The rate of recovery.Preferably, the ratio b/a of time b and time a increases with the TDS values of detection and is reduced, that is, TDS values are bigger, explanation
Water quality is poorer, then the duration for controlling first state increases, to avoid reverse osmosis membrane fouling.For example, TDS values are divided into 4
A range, different TDS values ranges and time than correspondence it is as shown in the table.
In table, t1<t2<T3,0 ＜ k1＜ k2＜ k3＜ k4。
In alternate embodiments, the recycling of water cleaning systems can also be determined by the TDS values that water monitoring device detects
Rate, for example, TDS is divided into 4 ranges, the correspondence of different TDS ranges and the rate of recovery is as shown in the table.
In table, t1<t2<T3, n ＞ m1＞ m2＞ m3＞ m4＞ m.Wherein, m is the rate of recovery under first state, n second
The rate of recovery under state, and m ＜ n, further according to setting the rate of recovery by the ratio of automatically controlled procedure selection a and b, it is specific at one
Embodiment in, if pure water flow under first state is v1, concentrated water+pure water flow be w1, the pure water flow under the second state is
v2, concentrated water+pure water flow is w2, rate of recovery x=(v1*a+v2*b)/(w1*a+w2* b), then b/a=(x*w are obtained1-v1)/(v2-
x*w2)。
Water cleaning systems provided by the present application and its control method can be widely applied in various water purification products, such as water purification
Machine, water dispenser etc..
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each preferred embodiment can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from the utility model
In the case of basic principle, those skilled in the art can be directed to the various apparent or equivalent modification that above-mentioned details is made
Or replace, all it is included in the right of the utility model.
Claims (12)
1. a kind of water cleaning systems, which is characterized in that including filter device, the filter device have water inlet, concentrated water outlet and
Water purification outlet, the concentrated water outlet are connected with concentrated water discharge unit, and the concentrated water discharge unit includes return water branch, the return water
The outlet end of branch is connect with the water inlet of the filter device, and return water filter element is provided on return water branch road.
2. water cleaning systems according to claim 1, which is characterized in that the return water filter element can be backwashed,
The return water filter element includes first and second mouthful, the concentrated water outlet of the first and the filter device, institute
It states second mouthful to be connected to the water inlet of the filter device, the concentrated water discharge unit further includes drainpipe, and the first is also
It is connected to the drainpipe by the first draining branch.
3. water cleaning systems according to claim 2, which is characterized in that the filtering dress is accessed in one end of the return water branch
The upstream lateral line for the water inlet set, the other end are exported by the concentrated water of coupling part and the filter device and are connected, and described the
One end of one draining branch connects the drainpipe, and the other end is exported by the concentrated water of the coupling part and the filter device
Connection.
4. water cleaning systems according to claim 3, which is characterized in that the upstream lateral line of the water inlet of the filter device
Upper edge water (flow) direction is provided with water inlet switch device and flow driving device.
5. water cleaning systems according to claim 3, which is characterized in that the coupling part is with throttle and/or entirely
Open state.
6. water cleaning systems according to claim 5, which is characterized in that the coupling part includes connection branch, the company
It connects branch road and is provided with flow control valve.
7. water cleaning systems according to claim 6, which is characterized in that the flow control valve is configured to energization standard-sized sheet, breaks
Electrical throttle.
8. water cleaning systems according to claim 2, which is characterized in that be provided with first switch on the first draining branch
Device；And/or
The return water branch road is provided with second switch device.
9. the water cleaning systems according to one of claim 1 to 8, which is characterized in that the concentrated water discharge unit further includes
Two draining branches, the second draining branch have throttle.
10. water cleaning systems according to claim 9, which is characterized in that be provided with waste water ratio on the second draining branch.
11. the water cleaning systems according to one of claim 1 to 8, which is characterized in that the return water branch road is provided with flow
Detection device.
12. the water cleaning systems according to one of claim 1 to 8, which is characterized in that the return water filter element includes ultrafiltration
Membrane filter unit or scale inhibition filter element.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721845424.3U CN207957943U (en) | 2017-12-22 | 2017-12-22 | A kind of water cleaning systems |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721845424.3U CN207957943U (en) | 2017-12-22 | 2017-12-22 | A kind of water cleaning systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083478A (en) * | 2017-12-22 | 2018-05-29 | 珠海格力电器股份有限公司 | Water cleaning systems and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083478A (en) * | 2017-12-22 | 2018-05-29 | 珠海格力电器股份有限公司 | Water cleaning systems and its control method |
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