CN103936104A - Water purification system - Google Patents
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- CN103936104A CN103936104A CN201410172582.1A CN201410172582A CN103936104A CN 103936104 A CN103936104 A CN 103936104A CN 201410172582 A CN201410172582 A CN 201410172582A CN 103936104 A CN103936104 A CN 103936104A
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Abstract
The invention provides a water purification system which comprises a reverse osmosis treatment unit, a concentrated water recycling unit, a temperature sensing device and a water quality monitoring device; the water inlet end and water outlet end of the concentrated water recycling unit are respectively connected with the concentrated water outlet and the water inlet end of the reverse osmosis treatment unit; the reverse osmosis treatment unit comprises a reverse osmosis treatment device and a variable-pressure device; the variable-pressure device is arranged at the upstream of the reverse osmosis treatment device in the direction of a water flow flowing through the reverse osmosis treatment unit. The variable-pressure device is arranged in the reverse osmosis treatment unit, so that different water supply pressures can be provided for the water inlet end of the reverse osmosis treatment device, and therefore the service life of a filter in the reverse osmosis treatment device in the water purification system is prolonged; in addition, the water production yield of the water purification system is increased.
Description
Technical field
The present invention relates to water purification field, particularly a kind of water cleaning systems.
Background technology
Along with the continuous progress of science and technology and the continuous enhancing of people's environmental consciousness, water resources reclaim again, recycle the important topic that has become national development.
At present for the water cleaning systems with reverse osmosis treatment device, such as RO (Reverse Osmosis, reverse osmosis) water-purifying machine, improve the RO water-purifying machine rate of recovery (water use efficiency) and have the conventional method of two large classes: first method is to adopt container that dense RO water is collected, as watering flowers, mop floor, flush the toilet wash water.This method is just used as other purposes by dense RO water-purifying machine water, the waste of having avoided direct discharge to cause, but do not improve the rate of recovery of RO water-purifying machine, do not belong to strictly speaking and improve system recoveries rate method, and increasing container, to collect the method practicality of dense water not strong, troublesome poeration.Second method is by pretreatment unit or tap water water inlet before the dense water importing RO of RO water-purifying machine, after mixing, again enters RO recycle with former water, and this mode is called again NF concentrated water reuse, is that comparison is by the raising RO water-purifying machine rate of recovery mode of everybody accreditation.
But what in NF concentrated water reuse, adopt is stabilized pressure pump, on the one hand, because the pressure of supply water of stabilized pressure pump is constant, therefore, in the higher area of the TDS of tap water value, the lower area of TDS value relatively, stabilized pressure pump pressure of supply water is on the low side, is unfavorable for that the hydraulic pressure that provides enough allows the filter member of as far as possible many water through RO water-purifying machine: RO film, thus cause the rate of recovery lower, and it is very little to cause producing discharge, the water time processed is also longer.On the other hand, the pressure of supply water of stabilized pressure pump under the flushing of the RO of RO water-purifying machine film and water different operating state processed is identical, but, rinsing under working order, pressure of supply water is large as far as possible, just better to the developing result of RO film surface contaminant, therefore, stabilized pressure pump usually cannot carry out cleaning down to the pollutent on RO film surface, developing result is not good enough, easily causes RO film to stop up, and makes RO membrane lifetime short, thereby improved cost of water treatment, NF concentrated water reuse has also lost use value.This problem has become the bottleneck problem that NF concentrated water reuse system is promoted, used.
Technical problem: the stabilized pressure pump that existing water cleaning systems adopts usually cannot carry out cleaning down to the pollutent on RO film surface, developing result is not good enough, easily causes RO film to stop up, and makes RO membrane lifetime short, thereby improved cost of water treatment, NF concentrated water reuse has also lost use value; Technique means: a kind of water cleaning systems that the potential device of different pressure of supply waters can be provided for the feed-water end of reverse osmosis treatment device that is provided with is provided; Technique effect: improve the rate of recovery of water cleaning systems, extended the work-ing life of the filter member of reverse osmosis treatment device, and the water quality strong adaptability of water cleaning systems, intelligent degree is high.
Summary of the invention
The object of this invention is to provide a kind of RO membrane cartridge life-span length, produce the high water cleaning systems of the water rate of recovery.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of water cleaning systems, comprise: reverse-osmosis treated unit, NF concentrated water reuse unit, temperature sensing device and water monitoring device, the feed-water end of NF concentrated water reuse unit is connected with feed-water end with the dense water out of reverse-osmosis treated unit respectively with water side, reverse-osmosis treated unit comprises reverse osmosis treatment device and potential device, in the water (flow) direction of reverse-osmosis treated unit of flowing through, potential device is arranged at the upstream of reverse osmosis treatment device.
From above scheme, by potential device being set in reverse-osmosis treated unit, can provide different pressure of supply waters for the feed-water end of reverse osmosis treatment device, thereby be conducive to extend in water cleaning systems the work-ing life of filter member in reverse osmosis treatment device, and improve the product water rate of recovery of water cleaning systems.
Further, water cleaning systems also comprises that pretreatment unit, post-processing unit, water cell and concentrated water drainage go out pipeline, and the feed-water end of pretreatment unit is connected with the feed-water end of reverse-osmosis treated unit with pending water source respectively with water side.Pretreatment unit, reverse-osmosis treated unit, post-processing unit are connected in series successively and form pure water pipeline.Pretreatment unit, reverse-osmosis treated unit, water cell are connected in series successively and form water storage pipeline.Concentrated water drainage goes out pipeline and is connected with the dense water out of reverse osmosis treatment device.Temperature sensing device and water monitoring device are arranged on reverse-osmosis treated unit, post-processing unit, water cell, NF concentrated water reuse unit and concentrated water drainage and go out among any one of pipeline, in the time that temperature sensing device and water monitoring device are arranged among reverse-osmosis treated unit, in the water (flow) direction of reverse-osmosis treated unit of flowing through, temperature sensing device and water monitoring device are arranged at the upstream of reverse osmosis treatment device.
Further, water cleaning systems also comprises control unit, and control unit can be according to the pressure of supply water of the TDS monitor value control potential device of TDS probe.
Further, the water purification pattern of control unit control water cleaning systems and reverse osmosis treatment device rinse mode.
Further, under water purification pattern, control unit according to the increase of TDS monitor value or reduce to control accordingly potential device improve or reduce pressure of supply water.
Further, NF concentrated water reuse unit comprises the reverse checkvalve and the waste water ratio that are connected in series, and reverse checkvalve is connected with the dense water out of reverse osmosis treatment device, and the water side of waste water ratio is connected with the feed-water end of reverse-osmosis treated unit; In control unit, store TDS preset value, in the time of TDS monitor value≤TDS preset value, control unit control waste water ratio is opened and waste water closed electromagnetic valve, and the dense water that reverse osmosis treatment device produces is back to the feed-water end of reverse-osmosis treated unit at least in part by waste water ratio and reverse checkvalve; In the time of TDS preset value < TDS monitor value, control unit control waste water ratio is closed with Wastewater by Electric magnet valve and is opened, and the dense water that reverse osmosis treatment device produces is all discharged from concentrated water drainage exit.
Further, in control unit, store at least one TDS fragmentation value N
1, N
1meet: 0 < N
1< TDS preset value; As 0 < TDS monitor value≤N
1time, pressure of supply water is adjusted to a fixed value V by control unit control potential device
1, work as N
1when < TDS monitor value≤TDS preset value, pressure of supply water is adjusted to a fixed value V by control unit control potential device
2, and, V
1< V
2.
Further, under reverse osmosis treatment device rinse mode, pressure of supply water is adjusted to V by control unit control potential device
cX, in the time of TDS monitor value≤TDS preset value, the maximum value that control unit control potential device regulates pressure of supply water to reach is V
max, and, V
cX>V
max.
Further, potential device is transformation water pump.
Further, transformation water pump is variable frequency pump, and the variable-frequency motor of variable frequency pump regulates pressure of supply water by adjusting rotary speed.
The invention has the beneficial effects as follows:
Adopt after said structure, tool of the present invention is had the following advantages: water cleaning systems provided by the present invention is provided with the potential device that different pressure of supply waters can be provided for the feed-water end of reverse osmosis treatment device, thereby improve the rate of recovery of water cleaning systems, extend the work-ing life of the filter member of reverse osmosis treatment device, and the water quality strong adaptability of water cleaning systems, intelligent degree is high.
Brief description of the drawings
Fig. 1 is the schematic diagram of water cleaning systems of the present invention
Fig. 2 is the pilot circuit schematic diagram of water cleaning systems of the present invention
Wherein: 1. T-valve; The cotton filter core of 2.PP; 3. low-tension switch; 4. particle charcoal filter core; 5. carbon rod filter core; 6. entering water electromagnetic valve; 7. under meter; 8. potential device; 9. reverse osmosis treatment device; 10. reverse checkvalve; 11. Wastewater by Electric magnet valves; 12. high-voltage switch gears; 13. pressure pots; 14. rearmounted filtration units; 15. pure water water outlet equipments; 16. waste water ratios; 17. reverse checkvalves; 18. temperature sensing devices; 19. water monitoring devices; DY1. pretreatment unit; DY2. reverse-osmosis treated unit; DY3. NF concentrated water reuse unit; DY4. post-processing unit; DY5. water cell.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, water cleaning systems of the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1: a kind of water cleaning systems, comprising: pretreatment unit DY1, reverse-osmosis treated cells D Y2, NF concentrated water reuse cells D Y3, post-processing unit DY4 and water cell DY5.
Pretreatment unit DY1, reverse-osmosis treated unit and DY2 post-processing unit DY4 are connected in series successively and form pure water pipeline, thus at water purification water outlet equipment 15 places for user provides pure water.Pretreatment unit DY1, reverse-osmosis treated cells D Y2, water cell DY5 are connected in series successively and form water storage pipeline, thereby the pure water of handling well through water cleaning systems is stored in pressure pot 13, in order to user's follow-up use.
Pretreatment unit DY1 comprises the cotton filter core 2 of the PP being connected in series successively, particle charcoal filter core 4 and carbon rod filter core 5, the feed-water end of the cotton filter core 2 of PP is connected with the tap water as pending water source by a T-valve 1, between the cotton filter core 2 of PP and particle charcoal filter core 4, is provided with low-tension switch 3.The water side of carbon rod filter core 5 further connects to be connected to the feed-water end of reverse-osmosis treated cells D Y2 successively with entering water electromagnetic valve 6, under meter 7, reverse-osmosis treated cells D Y2 comprises the potential device 8, the reverse osmosis treatment device 9 that are one another in series, and, further flow to reverse-osmosis treated unit through pretreatment unit DY1 water after treatment, in the water (flow) direction of reverse-osmosis treated unit of flowing through, potential device is arranged at the upstream of reverse osmosis treatment device.The water side of reverse osmosis treatment device 9 comprises pure water outlet and dense water out.
The temperature sensing device 18 of water cleaning systems and water monitoring device 19 are arranged on reverse-osmosis treated cells D Y2, post-processing unit DY4, water cell DY5, NF concentrated water reuse cells D Y3 and concentrated water drainage and go out among any one of pipeline.Preferably, temperature sensing device 18 and water monitoring device 19 are arranged in reverse-osmosis treated cells D Y2, water monitoring device 19 in reverse-osmosis treated cells D Y2, temperature sensing device 18, potential device 8 and reverse osmosis treatment device 9 are one another in series, for the order of series connection, flowed to by pretreatment unit DY1 in the water (flow) direction of reverse osmosis treatment device 9 feed-water end one sides, reverse osmosis treatment device 9 is positioned at downstream, preferably, water monitoring device 19, temperature sensing device 18, potential device 8 and reverse osmosis treatment device 9 are connected successively, and water monitoring device 19 is connected with the water side of under meter 7.Owing to being provided with potential device 8 and potential device 8 and being positioned at the upstream of reverse osmosis treatment device 9, therefore, potential device 8 can provide different pressure of supply waters for the feed-water end of reverse osmosis treatment device.As an enforceable mode, reverse osmosis treatment device 9 is RO membrane cartridge, the thermo-bulb that temperature sensing device 18 adopts for monitoring water temperature, TDS (the Total Dissolved Solids that water monitoring device 19 adopts for monitoring water, total dissolved solid, claim again total salinity) the TDS probe of value, potential device 8 adopts transformation water pump, this transformation water pump regulates pressure of supply water automatically according to TDS monitor value, thereby for the feed-water end of RO membrane cartridge provides different hydraulic pressure, preferably, transformation water pump can adopt variable frequency pump, the variable-frequency motor of variable frequency pump carrys out adjust flux by adjusting rotary speed, thereby obtain different pressure of supply waters.
Exporting and on the water pipeline being connected, be provided with reverse checkvalve 10 with the pure water of reverse osmosis treatment device 9, the dense water out of reverse osmosis treatment device 9 is divided into two-way, connect respectively concentrated water drainage and go out pipeline and NF concentrated water reuse cells D Y3, go out to be provided with on pipeline Wastewater by Electric magnet valve 11 and concentrated water drainage outlet at concentrated water drainage.
The NF concentrated water reuse cells D Y3 of water cleaning systems comprises reverse checkvalve 17, waste water ratio 16, and, reverse checkvalve 17 is connected with the dense water out of reverse osmosis treatment device 9, and the feed-water end of waste water ratio 16 is connected with the feed-water end of reverse-osmosis treated unit with reverse checkvalve 17 respectively with water side.The water side of the water side of waste water ratio 16, the feed-water end of reverse-osmosis treated unit and under meter 7 can be connected by Y-tube.
The post-processing unit DY4 of water cleaning systems comprises the rearmounted filtration unit 14 and the pure water outlet 15 that are connected in series successively, and the feed-water end of rearmounted filtration unit 14 is connected with the pure water inlet of reverse osmosis treatment device 9.Rearmounted filtration unit 14 can be active carbon filter core or ultrafiltration membrane filter element.
The water cell DY5 of water cleaning systems comprises the high-voltage switch gear 12 and the pressure pot 13 that are connected in series successively, and pressure pot 13 can store pure water, and high-voltage switch gear 12 is arranged between the feed-water end of pressure pot 13 and the pure water inlet of reverse osmosis treatment device 9.
Monitoring data is transferred to control unit (will be described further below), the control for control unit to the water cleaning systems including potential device by temperature sensing device 18 and water monitoring device 19; Specifically, in the time that temperature sensing device 18 and water monitoring device 19 are arranged among reverse-osmosis treated cells D Y2, the monitoring data of the water to reverse osmosis treatment device 9 feed-water end one sides is transferred to control unit by temperature sensing device 18 and water monitoring device 19; In the time that temperature sensing device 18 and water monitoring device 19 are arranged in post-processing unit DY4, for example, when both are arranged between reverse checkvalve 10 and rearmounted filtration unit 14, the monitoring data about pure water is transferred to control unit by both; In the time that temperature sensing device 18 and water monitoring device 19 are arranged in post-processing unit DY4, for example, when both are arranged between reverse checkvalve 10 and rearmounted filtration unit 14, the monitoring data about pure water is transferred to control unit by both; In the time that temperature sensing device 18 and water monitoring device 19 are arranged in water cell DY5, for example, when both are arranged between reverse checkvalve 10 and high-voltage switch gear 12, the monitoring data about water storage is transferred to control unit by both; In the time that temperature sensing device 18 and water monitoring device 19 are arranged in NF concentrated water reuse cells D Y3, for example, when both are arranged between reverse checkvalve 10 and reverse checkvalve 17, the monitoring data of the dense water about reuse is transferred to control unit by both; In the time that temperature sensing device 18 and water monitoring device 19 are arranged on concentrated water drainage and go out in pipeline, for example, when both are arranged between reverse checkvalve 10 and Wastewater by Electric magnet valve 11, the monitoring data of the dense water about discharging is transferred to control unit by both.
With reference to Fig. 2, adaptor power supplies is powered to water cleaning systems, the operation of water cleaning systems is controlled by control unit, this control unit comprises central processing unit, for showing water cleaning systems operating parameter and demonstration and input unit for user input instruction and parameter, this central processing unit can adopt MCU or PLC, and, central processing unit and TDS probe, thermo-bulb, show and input unit, low-tension switch, high-voltage switch gear, transformation water pump, waste water ratio, entering water electromagnetic valve, the electrical connection of Wastewater by Electric magnet valve and communication, thereby central processing unit by programmed instruction the control to corresponding component so that water cleaning systems has two kinds of operational modes: water purification pattern and reverse osmosis treatment device rinse mode, especially, in central processing unit, store TDS preset value and TDS fragmentation value, in addition, this TDS preset value and TDS fragmentation value also can be by user according to local water quality, the situations such as weather are upgraded setting by demonstration and input unit, central processing unit is according to received TDS monitor value, TDS monitor value and TDS preset value are compared to computing, and the control signal corresponding with comparison operation result exported to transformation water pump, thereby control the pressure of supply water of transformation water pump.
Be arranged in reverse-osmosis treated cells D Y2 with temperature sensing device 18 and water monitoring device 19 below, and, the situation that water monitoring device 19, temperature sensing device 18, potential device 8 and reverse osmosis treatment device 9 are connected is successively example, and emphasis is described in detail according to working condition and role under two kinds of different working modes under the control of the monitoring data of the water of reverse osmosis treatment device 9 feed-water end one sides, in water purification pattern and reverse osmosis treatment device rinse mode at control unit transformation water pump; Can be similar to ground; also the multiple situation that exists control unit to control potential device and carry out corresponding pressure of supply water adjusting according to the monitoring data of the dense water of the dense water of pure water or water storage or reuse or discharge; therefore, corresponding to each technical scheme of above-mentioned multiple situation also within protection domain.
(1) water purification pattern
In the time that water cleaning systems is opened water purification pattern, tap water is through the cotton filter core 2 of PP of pretreatment unit DY1, after the pre-treatment of particle charcoal filter core 4 and carbon rod filter core 5, enter reverse-osmosis treated cells D Y2, the water that temperature sensing device 18 and water monitoring device mix the dense water (elaborating below) of the water of being supplied by pretreatment unit DY1 separately or the water of being supplied by pretreatment unit DY1 and backflow carries out the monitoring of water temperature and TDS and monitoring numerical value is transferred to central processing unit, TDS monitor value can be calculated separately according to TDS monitoring numerical value by central processing unit or draw according to water temperature detection numerical value and TDS monitoring numerical value COMPREHENSIVE CALCULATING, central processing unit is according to the pressure of supply water of TDS monitor value control potential device, specifically, in the situation that TDS value does not exceed a preset value, the dense water that reverse osmosis treatment device 9 produces is back to the feed-water end of reverse osmosis treatment device at least in part by reverse checkvalve 17 and waste water ratio 16, that is to say, dense water can all reflux, or a part for dense water refluxes and another part is discharged from concentrated water drainage outlet.In the situation that TDS value exceedes a preset value, central processing unit control waste water ratio 16 is closed, Wastewater by Electric magnet valve 11 is opened, and the dense water that reverse osmosis treatment device 9 produces is all discharged from concentrated water drainage exit by Wastewater by Electric magnet valve 11.Under water purification pattern, in the time that TDS monitor value increases, central processing unit regulates pressure of supply water to increase according to monitor value control potential device, and the maximum value that central processing unit control potential device regulates pressure of supply water to reach is V
maxin the time that TDS monitor value reduces, central processing unit control potential device 8 regulates pressure of supply water to reduce, therefore, water cleaning systems can regulate automatically according to the variation of TDS monitor value the hydraulic pressure size of reverse osmosis treatment device influent side, thereby can farthest put forward the high yield water rate of recovery, reach water-saving result.
(2) reverse osmosis treatment device rinse mode
In the time that water cleaning systems is opened reverse osmosis treatment device rinse mode, the pressure of supply water of potential device 8 is adjusted to a high-voltage value V by central processing unit
cX, this high-voltage value V
cXcan be a fixing preset value, can be also central processing unit is controlled potential device 8 pressure of supply waters dynamic value according to TDS monitor value, and, V
cX>V
max, therefore utilize V
cXhydraulic pressure value rinse reverse osmosis membrane processing device 9, can carry out cleaning down to the pollutent on RO film surface, developing result is good, RO film be difficult for stop up.
As an embodiment more specifically, in conjunction with Fig. 1 and following table one, at water cleaning systems, during in water purification pattern, TDS preset value is made as 400, one TDS fragmentation value N
1be made as 200, in the time of TDS value≤400 that TDS probe monitors, central processing unit control waste water ratio 16 is opened, Wastewater by Electric magnet valve 11 is closed, the dense water that RO membrane cartridge produces is back to thermo-bulb and TDS probe upstream side by reverse checkvalve 17 and waste water ratio 16 at least in part, and there are following two kinds of situations, one: 0 < TDS monitor value≤200 of situation, central processing unit is adjusted to 0.41Mpa according to TDS monitor value control transformation water pump by pressure of supply water; Two: 200 < TDS monitor value≤400 of situation, central processing unit is adjusted to V according to TDS monitor value control transformation water pump by pressure of supply water
max: 0.48Mpa.
When the TDS value monitoring when water monitoring device 19 is greater than 400, central processing unit control waste water ratio 16 is closed, Wastewater by Electric magnet valve 11 is opened, the dense water that RO membrane cartridge produces is all discharged from concentrated water drainage exit by Wastewater by Electric magnet valve 11, and there are following two kinds of situations, one: 400 < TDS monitor value≤600 of situation, central processing unit is adjusted to 0.55Mpa according to TDS monitor value control transformation water pump by pressure of supply water; Two: 600 < TDS monitor value≤1000 of situation, central processing unit is adjusted to 0.62Mpa according to TDS monitor value control transformation water pump by pressure of supply water.
Therefore, can be found out by the above and table one, TDS preset value according to setting: 400, central processing unit TDS monitor value numerical range of living in is controlled water cleaning systems reuse or dense water is all drained at least in part to realize dense water by judging, not only can put forward the high yield water rate of recovery, also can reduce R0 film pollutes, and, under reverse osmosis treatment device flushing state, pressure of supply water compared to transformation water pump in 0 < TDS value≤200 and 200 < TDS value≤400 situations is respectively 0.41Mpa and 0.48Mpa, central processing unit can further be controlled transformation water pump hydraulic pressure is heightened to the 0.62Mpa that higher 0.55Mpa is even higher, so, the pollutent on the R0 film surface to RO membrane cartridge rinses better, reducing R0 film pollutes.
In the time that water cleaning systems is opened reverse osmosis treatment device rinse mode, the pressure of supply water of transformation water pump is adjusted to a high-voltage value V by central processing unit
cX: 0.55Mpa, V
cX>V
max, therefore the pollutent on RO film surface is by cleaning down, and RO film is difficult for stopping up.
Table one: the correlation parameter under two kinds of different working modes
The above embodiment has only expressed preferred forms of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a water cleaning systems, comprising: reverse-osmosis treated unit, NF concentrated water reuse unit, temperature sensing device and water monitoring device; The feed-water end of described NF concentrated water reuse unit is connected with feed-water end with the dense water out of described reverse-osmosis treated unit respectively with water side; Described reverse-osmosis treated unit comprises reverse osmosis treatment device; It is characterized in that: described reverse-osmosis treated unit also comprises potential device, in the water (flow) direction of described reverse-osmosis treated unit of flowing through, described potential device is arranged at the upstream of described reverse osmosis treatment device.
2. water cleaning systems according to claim 1, is characterized in that:
Described water cleaning systems also comprises that pretreatment unit, post-processing unit, water cell and concentrated water drainage go out pipeline;
The feed-water end of described pretreatment unit is connected with the feed-water end of described reverse-osmosis treated unit with pending water source respectively with water side;
Described pretreatment unit, described reverse-osmosis treated unit, described post-processing unit are connected in series successively and form pure water pipeline;
Described pretreatment unit, described reverse-osmosis treated unit, described water cell are connected in series successively and form water storage pipeline;
Described concentrated water drainage goes out pipeline and is connected with the dense water out of described reverse osmosis treatment device;
Described temperature sensing device and described water monitoring device are arranged on described reverse-osmosis treated unit, described post-processing unit, described water cell, described NF concentrated water reuse unit and described concentrated water drainage and go out among any one of pipeline, in the time that described temperature sensing device and described water monitoring device are arranged among described reverse-osmosis treated unit, in the water (flow) direction of described reverse-osmosis treated unit of flowing through, described temperature sensing device and described water monitoring device are arranged at the upstream of described reverse osmosis treatment device.
3. water cleaning systems according to claim 2, is characterized in that:
Described water cleaning systems also comprises control unit, and described control unit can be according to the pressure of supply water of TDS monitor value control potential device.
4. water cleaning systems according to claim 3, is characterized in that:
The water purification pattern of water cleaning systems and reverse osmosis treatment device rinse mode described in described control unit control.
5. water cleaning systems according to claim 4, is characterized in that:
Under described water purification pattern, described control unit according to the increase of described TDS monitor value or reduce to control accordingly potential device improve or reduce pressure of supply water.
6. water cleaning systems according to claim 5, is characterized in that:
Described NF concentrated water reuse unit comprises the reverse checkvalve and the waste water ratio that are connected in series, and described reverse checkvalve is connected with the dense water out of described reverse osmosis treatment device, and the water side of described waste water ratio is connected with the feed-water end of described reverse-osmosis treated unit;
In described control unit, store TDS preset value, in the time of TDS monitor value≤TDS preset value, described in described control unit control, waste water ratio is opened and described waste water closed electromagnetic valve, and the dense water that described reverse osmosis treatment device produces is back to the feed-water end of reverse-osmosis treated unit at least in part by described waste water ratio and described reverse checkvalve; In the time of TDS preset value < TDS monitor value, described control unit control waste water ratio is closed with described Wastewater by Electric magnet valve and is opened, and the dense water that reverse osmosis treatment device produces is all discharged from concentrated water drainage exit.
7. water cleaning systems according to claim 6, is characterized in that:
In described control unit, store at least one TDS fragmentation value N
1, described N
1meet: 0 < N
1< TDS preset value; As 0 < TDS monitor value≤N
1time, pressure of supply water is adjusted to a fixed value V by potential device described in described control unit control
1, work as N
1when < TDS monitor value≤TDS preset value, pressure of supply water is adjusted to a fixed value V by potential device described in described control unit control
2, and, V
1< V
2.
8. water cleaning systems according to claim 6, is characterized in that:
Under described reverse osmosis treatment device rinse mode, pressure of supply water is adjusted to V by described control unit control potential device
cX, in the time of TDS monitor value≤TDS preset value, the maximum value that described control unit control potential device regulates pressure of supply water to reach is V
max, and, V
cX>V
max.
9. according to the water cleaning systems described in claim 1 to 8 any one, it is characterized in that:
Described potential device is transformation water pump.
10. water cleaning systems according to claim 9, is characterized in that:
Described transformation water pump is variable frequency pump, and the variable-frequency motor of described variable frequency pump regulates pressure of supply water by adjusting rotary speed.
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| CN104291414A (en) * | 2014-09-23 | 2015-01-21 | 珠海格力电器股份有限公司 | Reverse osmosis water purification system, reverse osmosis water purifier and control method |
| CN104803426A (en) * | 2015-04-02 | 2015-07-29 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier and water purifier control method |
| CN104944524A (en) * | 2014-12-03 | 2015-09-30 | 佛山市云米电器科技有限公司 | Reverse-osmosis water purification unit and wastewater emission ratio regulation method thereof |
| CN106215709A (en) * | 2016-08-26 | 2016-12-14 | 中电环保股份有限公司 | A kind of reverse-osmosis membrane element method of testing and device |
| CN106477645A (en) * | 2016-11-07 | 2017-03-08 | 珠海格力电器股份有限公司 | A kind of control device of water purifier, water purifier and its control method |
| CN108423760A (en) * | 2017-02-14 | 2018-08-21 | 杜也兵 | The reverse osmosis water purifier of row's NF concentrated water reuse control device is set |
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| CN104291414A (en) * | 2014-09-23 | 2015-01-21 | 珠海格力电器股份有限公司 | Reverse osmosis water purification system, reverse osmosis water purifier and control method |
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| CN104944524A (en) * | 2014-12-03 | 2015-09-30 | 佛山市云米电器科技有限公司 | Reverse-osmosis water purification unit and wastewater emission ratio regulation method thereof |
| CN104803426A (en) * | 2015-04-02 | 2015-07-29 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier and water purifier control method |
| CN106215709A (en) * | 2016-08-26 | 2016-12-14 | 中电环保股份有限公司 | A kind of reverse-osmosis membrane element method of testing and device |
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| CN108423760A (en) * | 2017-02-14 | 2018-08-21 | 杜也兵 | The reverse osmosis water purifier of row's NF concentrated water reuse control device is set |
| CN108686515A (en) * | 2018-08-24 | 2018-10-23 | 珠海格力电器股份有限公司 | A kind of water cleaning systems and its control method, water purifier improving the rate of recovery |
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| CN109224862A (en) * | 2018-08-24 | 2019-01-18 | 珠海格力电器股份有限公司 | The control method of water treatment system and water treatment system |
| CN110627240A (en) * | 2019-09-27 | 2019-12-31 | 珠海格力智能装备有限公司 | Water purifying device and water purifying method |
| CN110980993A (en) * | 2019-12-30 | 2020-04-10 | 珠海格力电器股份有限公司 | Water purifier and automatic flushing device and flushing method thereof |
| CN110980993B (en) * | 2019-12-30 | 2023-11-03 | 珠海格力电器股份有限公司 | Water purifier and automatic flushing device and flushing method thereof |
| CN112551721A (en) * | 2020-12-16 | 2021-03-26 | 珠海格力电器股份有限公司 | Water purification system |
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