CN104355426B - Water purification system and control method thereof - Google Patents
Water purification system and control method thereof Download PDFInfo
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- CN104355426B CN104355426B CN201410594113.9A CN201410594113A CN104355426B CN 104355426 B CN104355426 B CN 104355426B CN 201410594113 A CN201410594113 A CN 201410594113A CN 104355426 B CN104355426 B CN 104355426B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 336
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000000746 purification Methods 0.000 title abstract 5
- 239000002351 wastewater Substances 0.000 claims abstract description 159
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims description 84
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 51
- 239000012141 concentrate Substances 0.000 claims description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 12
- 238000010992 reflux Methods 0.000 abstract description 9
- 239000012528 membrane Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 238000012805 post-processing Methods 0.000 description 5
- 239000008213 purified water Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a water purification system and a control method thereof, wherein the water purification system comprises a pretreatment unit, a reverse osmosis treatment unit and a concentrated water reflux unit, wherein the water inlet end of the concentrated water reflux unit is connected to a concentrated water pipeline of the reverse osmosis treatment unit, and the water outlet end of the concentrated water reflux unit is connected to the water inlet pipeline of the reverse osmosis treatment unit; a first wastewater ratio is arranged on the concentrated water pipeline, and a second wastewater ratio is arranged on the pipeline of the concentrated water reflux unit; and a raw water quality detection device is arranged on a water inlet pipeline of the reverse osmosis treatment unit. The water purification system of the invention is provided with the wastewater ratio on the concentrated water reflux unit and the reverse osmosis treatment unit, and the wastewater ratio can be controlled to change the playback ratio of the wastewater according to different water qualities, so that the water purification system of the invention has universal applicability.
Description
Technical field
The present invention relates to water cleaning systems field, particularly relate to water cleaning systems and the control method thereof of a kind of reverse osmosis.
Background technology
Reverse osmosis purified water system is a kind of water cleaning systems generally applied now. Reverse osmosis purified water system generally comprises pretreatment unit, reverse-osmosis treated unit and post-processing unit, and former water can produce pure water and dense water after reverse osmosis purified water system processes. The existing pure water of reverse osmosis purified water system and the ratio of waste water are about 1:3, and its utilization ratio is 25%. Some water cleaning systems are had to adopt the method for concentrate recirculation at present, it is possible to improve the utilization ratio of former water. But adopting the system of concentrate recirculation in the poor area of some water quality, the pollution speed of reverse osmosis membrane is accelerated relatively, it may also be useful to the life-span sharply shortens, and causes bigger waste on the contrary. Even if producer have adjusted waste water ratio according to water quality difference in advance, but also unavoidably cause the waste of water resources and the irrational utilization of RO film because of area variation water quality.
Summary of the invention
For the problem of above-mentioned water resource waste and RO film irrational utilization, it is an object of the invention to provide a kind of new water cleaning systems and control method thereof.
The technical scheme of the present invention is as follows:
A kind of water cleaning systems, comprise pretreatment unit and reverse-osmosis treated unit, also comprise concentrate recirculation unit, the feed-water end of described concentrate recirculation unit is connected on the dense waterpipe of described reverse-osmosis treated unit, and the water side of described concentrate recirculation unit is connected on the inlet channel of described reverse-osmosis treated unit;
Described dense waterpipe is provided with the first waste water ratio, and on the pipeline of described concentrate recirculation unit, is provided with the 2nd waste water ratio;
The inlet channel of described reverse-osmosis treated unit is provided with raw water quality detection device.
Wherein in an embodiment, between described pretreatment unit and described reverse-osmosis treated unit, also it is provided with voltage stabilizing pump; The tie point of the inlet channel of described concentrate recirculation unit and described reverse-osmosis treated unit is arranged between described pretreatment unit and described voltage stabilizing pump.
Wherein in an embodiment, described raw water quality detection device is arranged between described pretreatment unit and described voltage stabilizing pump.
Wherein in an embodiment, described water cleaning systems also comprises control mainboard, and described control mainboard detects device, described first waste water ratio and described 2nd waste water ratio with described raw water quality and is electrically connected.
Wherein in an embodiment, described dense waterpipe is also provided with dense water water quality detecting device; Described dense water water quality detecting device is electrically connected with described control mainboard.
The present invention also provides a kind of control method of above-mentioned water cleaning systems, comprises the steps:
S100: the detected result of described raw water quality is also sent to control mainboard by raw water quality detection device detection raw water quality;
S200: described control mainboard judges former water grade according to described detected result, and control water cleaning systems according to described former water grade and enter corresponding operational mode.
Wherein in an embodiment, described former water grade is divided into I, II, III and IV;
Enter corresponding operational mode according to described former water grade control water cleaning systems described in step S200 to comprise the steps:
S210: described control mainboard judges that described former water grade is I, and described control mainboard controls described water cleaning systems and enters the first operational mode;
S220: described control mainboard judges that described former water grade is II, and described control mainboard controls described water cleaning systems and enters the 2nd operational mode;
S230: described control mainboard judges that described former water grade is III, and described control mainboard controls described water cleaning systems and enters the 3rd operational mode;
S240: described control mainboard judges that described former water grade is IV, and described control mainboard controls described water cleaning systems and enters the 4th operational mode.
Wherein in an embodiment, wherein said first operational mode comprises the steps:
S211: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to after the first state runs the T1 time and enters step S212;
S212: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to the two-state operation T2 time, returns afterwards and performs step S211;
Wherein said 2nd operational mode comprises the steps:
S221: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to after two-state runs the T2 time and enters step S222;
S222: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to the third state operation T3 time, returns afterwards and performs step S221;
Wherein said 3rd operational mode comprises the steps:
S231: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to after the third state runs the T3 time and enters step S232;
S232: described control mainboard controls the first waste water ratio and the 2nd waste water ratio was adjusted to for the 4th state operation T4 time, returns afterwards and performs step S231;
Wherein said 4th operational mode is that described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to the 4th state operation.
Wherein in an embodiment, the scope of described T1, T2, T3 and T4 is 1min��20min.
The present invention also provides a kind of control method of above-mentioned water cleaning systems, comprises the steps:
S100: the detected result of described raw water quality is also sent to control mainboard by raw water quality detection device detection raw water quality;
S200: dense water water quality detecting device detects dense water water quality and the detected result of described dense water water quality is sent to control mainboard;
S300: described control mainboard controls described water cleaning systems according to the detected result of described raw water quality and described dense water water quality and enters corresponding operational mode.
Wherein in an embodiment, described former water grade is divided into I, II, III and IV;
Control mainboard described in step S300 to control described water cleaning systems according to the detected result of described raw water quality and described dense water water quality and enter corresponding operational mode and comprise the steps:
S310: according to the detected result of described raw water quality, described control mainboard judges that described former water grade is I, described control mainboard controls described water cleaning systems and enters the first operational mode;
S320: according to the detected result of described raw water quality, described control mainboard judges that described former water grade is II, described control mainboard controls described water cleaning systems and enters the 2nd operational mode;
S330: according to the detected result of described raw water quality, described control mainboard judges that described former water grade is III, described control mainboard controls described water cleaning systems and enters the 3rd operational mode;
S340: according to the detected result of described raw water quality, described control mainboard judges that described former water grade is IV, described control mainboard controls described water cleaning systems and enters the 4th operational mode.
Wherein in an embodiment, wherein said first operational mode comprises the steps:
S311: described control mainboard described first waste water ratio of control and described 2nd waste water ratio are adjusted to the first state and run until described control mainboard judges that the detected result of described dense water water quality is greater than the first preset value and enters step S312;
S312: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to two-state operation until described control mainboard judges to return after the detected result of described dense water water quality is less than the 2nd preset value performs step S311;
Wherein said 2nd operational mode comprises the steps:
S321: described control mainboard described first waste water ratio of control and described 2nd waste water ratio are adjusted to two-state and run until described control mainboard judges that the detected result of described dense water water quality is greater than the 3rd preset value and enters step S322;
S322: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to third state operation until described control mainboard judges to return after the detected result of described dense water water quality is less than the 4th preset value performs step S321;
Described 3rd operational mode comprises the steps:
S331: described control mainboard described first waste water ratio of control and described 2nd waste water ratio are adjusted to the third state and run until described control mainboard judges that the detected result of described dense water water quality is greater than the 5th preset value and enters step S332;
S332: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to the 4th state operation until described control mainboard judges to return execution step S331 after the detected result of described dense water water quality is less than the 6th preset value;
Wherein said 4th operational mode is that described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to the 4th state operation.
Wherein in an embodiment, dense water blowback ratio under first state is D1, dense water blowback ratio under two-state is D2, dense water blowback ratio under the third state is D3, dense water blowback ratio under 4th state is D4, wherein D1 > D2 > D3 > D4.
Wherein in an embodiment, described detected result is TDS or hardness.
The invention has the beneficial effects as follows: the water cleaning systems of the present invention is all provided with waste water ratio on concentrate recirculation unit and reverse-osmosis treated unit, the blowback ratio of waste water can be changed according to different water quality so that the water cleaning systems of the present invention has general applicability by control waste water ratio. The control method of the water cleaning systems of the present invention can adopt different operational modes according to different water quality, namely according to different water quality regulation waste water ratios, reaches the object saved water and energy, and can extend the life-span of reverse osmosis membrane simultaneously.
Accompanying drawing explanation
Fig. 1 is the front view of an embodiment of the water cleaning systems of the present invention;
Fig. 2 is the overall schematic of the control mainboard in Fig. 1.
Embodiment
In order to the object of the water cleaning systems and control method thereof that make the present invention, technical scheme and advantage are clearly understood, below in conjunction with concrete drawings and the specific embodiments, the present invention is further elaborated.
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment one
See Fig. 1, the present invention provides a kind of water cleaning systems, comprise pretreatment unit 100, reverse-osmosis treated unit 200, post-processing unit 300 and pressure bucket 0100, pretreatment unit 100 and reverse-osmosis treated unit 200 are sequentially connected in series, former water enters reverse-osmosis treated unit 200 after pretreatment unit 100 processes, the product water of reverse-osmosis treated unit has pure water and two kinds, dense water, wherein pure water directly can flow out from water outlet bear 500 after post-processing unit 300, or pure water temporarily can store in pressure bucket 0100 and flow through post-processing unit 300 when needed again and supply user.
See Fig. 1, the pretreatment unit 100 in the present embodiment comprises the cotton filter core 110 of PP, active carbon filter core 120 and the cotton filter core 110 of carbon-point filter core 130, PP, active carbon filter core 120 and carbon-point filter core 130 and is sequentially connected in series. Between pretreatment unit 100 and reverse-osmosis treated unit 200, be disposed with raw water quality detection device 610, entering water electromagnetic valve 101, under meter 102 and voltage stabilizing pump 700, wherein entering water electromagnetic valve 101 not water processed time be in closing condition, the unlatching when water processed. The effect of under meter 102 is record current total amount, thus reaches the effect that in water cleaning systems, each component life is reminded.
See Fig. 1, the water that voltage stabilizing pump 700 exports enters reverse-osmosis treated unit 200, and the effect being provided with the first reverse checkvalve 810, first reverse checkvalve 810 on the pure water pipeline 10 of reverse-osmosis treated unit 200 prevents the pure water in pure water pipeline from refluxing. See Fig. 1, the dense waterpipe 20 of the reverse-osmosis treated unit 200 in the present embodiment being also provided with scouring electromagnetic valve 210, scouring electromagnetic valve 210 is in normally off, is just in opened condition when performing flushes instructions.
Post-processing unit 300 is composite filter element or post active carbon filter core mainly, and its effect is the pure water processing the storage in the pure water being stored in reverse-osmosis treated unit 200 or pressure bucket 0100 further, reaches the effect removing bacterium, peculiar smell. Composite filter element mainly comprises carbon-point and ultra-filtration membrane filtrate. General, high-voltage switch gear 220 it is provided with between reverse-osmosis treated unit 200 and pressure bucket 0100, high-voltage switch gear 220 is mainly for detection of the water pressures of this section of pure water pipeline branch road and controls entering water electromagnetic valve 101, when the hydraulic pressure of this section of pure water pipeline branch road declines, entering water electromagnetic valve 101 is opened, voltage stabilizing pump 700 operates, water cleaning systems water. When this section of pure water pipeline branch road hydraulic pressure is increased to preset value, entering water electromagnetic valve 101 is closed, and voltage stabilizing pump 700 shuts down, and water cleaning systems stops water processed.
See Fig. 1, water cleaning systems in the present embodiment also comprises concentrate recirculation unit 30, the feed-water end of described concentrate recirculation unit 30 is connected on the dense waterpipe 20 of reverse-osmosis treated unit 200, the water side of concentrate recirculation unit 30 is connected on the inlet channel of reverse-osmosis treated unit 200, dense water that concentrate recirculation unit 30 can make reverse-osmosis treated unit 200 produce is set again through reverse osmosis membrane, this part dense water is carried out secondary treatment, it is possible to significantly improve the water use efficiency of water cleaning systems.
See Fig. 1, the present embodiment is provided with the first waste water ratio 910 on the dense waterpipe 20 of reverse-osmosis treated unit 200, on concentrate recirculation unit 30, it is provided with the 2nd waste water ratio 920 simultaneously, the ratio that 2nd waste water ratio can control the dense water of backflow is set, to the loss of reverse osmosis membrane when can avoid so all refluxing for the regional dense water that water quality is poor, such that it is able to extend the life-span of reverse osmosis membrane, it is possible to according to different water quality regulation the 2nd waste water ratio and then the blowback ratio controlling dense water. Further, in order to better regulate the first waste water ratio 910 and the 2nd waste water ratio 920, the present embodiment is provided with raw water quality detection device 610 on the inlet channel of reverse osmosis units. First waste water ratio 910 and the 2nd waste water ratio 920 are and automatically regulate waste water ratio.
The present embodiment is provided with waste water ratio at concentrate recirculation unit, it is possible to control the blowback ratio of dense water, goes for different water quality like this, it is to increase the general applicability of the water cleaning systems of the present embodiment.
Preferably, as a kind of embodiment, concentrate recirculation unit 30 and the tie point 31 of the inlet channel of reverse-osmosis treated unit in the present embodiment are arranged between pretreatment unit 100 and voltage stabilizing pump 700, arrange the pressure that can regulate this part dense water like this, are conducive to the generation of reverse osmosis.
Preferably, as a kind of embodiment, being also provided with the 2nd reverse checkvalve 820 on concentrate recirculation unit 30, effect prevents dense water to be directly back to reverse-osmosis treated unit 200.
Preferably, as a kind of embodiment, raw water quality detection device 610 is arranged between described pretreatment unit 300 and described voltage stabilizing pump 700. More excellent, raw water quality detection device 610 is arranged between pretreatment unit 100 and entering water electromagnetic valve 101. What such raw water quality detection device 610 detected is the influent quality entering reverse-osmosis treated unit 200, is conducive to better judging the life-span of reverse osmosis membrane.
Preferably, as a kind of embodiment, described water cleaning systems also comprises control mainboard 010, and described control mainboard 010 detects device 610, described first waste water ratio 910 and described 2nd waste water ratio 920 with described raw water quality and is electrically connected. Control mainboard 010 in the present embodiment is mainly used in detecting water quality detection output control first waste water ratio 910 and the 2nd waste water ratio 920 of device 610 according to raw water quality, thus the water cleaning systems making the present invention is applicable to different water quality, improve the utilization ratio of water resources, extend the life-span of reverse osmosis membrane simultaneously. The water cleaning systems of the present embodiment is provided with control mainboard and water quality detecting device and automatically regulates waste water ratio; the former water detected according to water quality detecting device and/or dense water water quality parameter; the concentrate recirculation of varitrol and the flow of concentrated water discharge and or open the time; so that this water cleaning systems has good universality; the area good in water quality can significantly improve system recoveries rate; the area of water quality inferiority can also available protecting reverse osmosis membrane filter element life, make system water saving energy-conservation.
See Fig. 2, control mainboard 010 comprises receiver module 011, judges module 012 and runs module 013, wherein receiver module 011 for receiving the water quality detection result of raw water quality detection device 610 and/or dense water water quality detecting device 620 and sends it to and judges module 012, judge that module 012 judges the water grade of former water according to water quality detection result, and water grade is sent to and runs module 013, run module 013 and control water cleaning systems by the operation of corresponding operational mode according to water grade.
Accordingly, the present invention also provides a kind of control method of water cleaning systems, comprises the steps:
S100: raw water quality detection device 610 detects raw water quality and the detected result of described raw water quality is sent to control mainboard 010;
S200: described control mainboard 010 judges former water grade according to described detected result, and control water cleaning systems according to described former water grade and enter corresponding operational mode.
Wherein, described former water grade can be divided into I, II, III and IV by detected result according to raw water quality; Control mainboard 010 controls water cleaning systems according to different former water grades and enters different operational modes. Namely described control mainboard 010 judges that described former water grade is I, and described control mainboard 010 controls described water cleaning systems and enters the first operational mode; Described control mainboard 010 judges that described former water grade is II, and described control mainboard 010 controls described water cleaning systems and enters the 2nd operational mode; Described control mainboard 010 judges that described former water grade is III, and described control mainboard 010 controls described water cleaning systems and enters the 3rd operational mode; Described control mainboard 010 judges that described former water grade is IV, and described control mainboard 010 controls described water cleaning systems and enters the 4th operational mode.
Above-mentioned first operational mode, the 2nd operational mode, the 3rd operational mode and the 4th operational mode can set in advance in control mainboard 010.
Preferably, as a kind of embodiment, wherein said first operational mode comprises the steps:
S211: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to after the first state runs the T1 time and enters step S212;
S212: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the two-state operation T2 time, returns afterwards and performs step S211.
First operational mode is the operational mode in the good situation of water-quality ratio, and owing to water quality is better, therefore the waste water quality of water cleaning systems is relatively better, and therefore waste water major part can reflux recycling. Can set in this enforcement makes water cleaning systems run for some time under the two-state that blowback ratio is slightly low after making water cleaning systems run for some time under the first state that blowback ratio is higher again, improves water reuse rate while of arranging the life-span that can improve reverse osmosis membrane so to greatest extent.
Wherein said 2nd operational mode comprises the steps:
S221: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to after two-state runs the T2 time and enters step S222;
S222: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the third state operation T3 time, returns afterwards and performs step S221.
Wherein said 3rd operational mode comprises the steps:
S231: described control mainboard controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to after the third state runs the T3 time and enters step S232;
S232: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 was adjusted to for the 4th state operation T4 time, returns afterwards and performs step S231.
Wherein said 4th operational mode is that described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the 4th state operation. When former water grade is IV, water quality is very poor.
It should be noted that, what raw water quality detection device 610 detected can be the TDS content of former water, it is also possible to be former water hardness. For TDS, above-mentioned control method is specifically described below.
Water quality is divided into four grades by TDS (total dissolved solid) content according to former water, and namely I, II, III and IV; Its middle grade I is that the TDS content in former water is less than 200mg/L, and grade II is the TDS content in former water is 200��500mg/L, and grade III is the TDS content in former water is 500��700mg/L, and grade IV is that the TDS content in former water is greater than 700mg/L. I grade of water quality is best, and IV grade of water quality is worst.
When described former water grade is I, perform step S210. Wherein step S210 comprises the steps:
S211: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to after the first state runs the T1 time and enters step S212;
S212: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to return after two-state runs the T2 time and performs step S211.
When described former water grade is II, performing step S220, step S220 comprises the steps:
S221: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to after two-state runs the T2 time and enters step S222;
S222: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to after the third state runs the T3 time and returns step S221.
Perform step S230 when described former water grade is III, step S230 comprises the steps:
S231: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the third state and runs the T3 time and enter step S232;
S232: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to return after the 4th state runs the T4 time and performs step S231.
When described former water grade is IV, perform step S240. S240: described control mainboard controls the first waste water ratio and the 2nd waste water ratio is adjusted to the 4th state operation.
Above-mentioned execution time scope of T1, T2, T3 and T4 is 1min��20min.
The present embodiment can be preset the waste water ratio of the first operational mode, the 2nd operational mode, the 3rd operational mode and the 4th operational mode according to different water quality. Wherein, the blowback ratio of the dense water under the first state is D1, the blowback ratio of the dense water under two-state is D2, the blowback ratio of the dense water under the third state is D3, the blowback ratio of the dense water under the 4th state is D4, wherein D1 > D2 > D3 > D4. Preferably, the dense water blowback ratio under the first state is 7:1 (the dense water namely refluxed and the ratio of the dense water of discharge are 7:1), and the dense water blowback ratio under two-state is 2:1, and the dense water blowback ratio under the third state is 1:2; Dense water blowback ratio under 4th state is 0:3 (dense water all discharges). By regulating the aperture of the first waste water ratio 910 and the 2nd waste water ratio 920 that water cleaning systems can be made to realize different dense water blowback ratios.
Embodiment two
Other parts of water cleaning systems in the present embodiment are identical with embodiment one, and difference is on described dense waterpipe 20 be also provided with dense water water quality detecting device 620; Described dense water water quality detecting device 620 is electrically connected with described control mainboard 010. Arranging control mainboard like this can better according to the operational mode of Water-quality control water cleaning systems.
The control method of the water cleaning systems described in embodiment two, comprises the steps:
S100: raw water quality detection device 610 detects raw water quality and the detected result of described raw water quality is sent to control mainboard 010;
S200: dense water water quality detecting device 620 detects dense water water quality and the detected result of described dense water water quality is sent to control mainboard 010;
S300: described control mainboard 010 enters corresponding operational mode according to the detected result control water cleaning systems of described raw water quality and described dense water water quality.
Wherein, described former water grade is divided into I, II, III and IV; Same, control mainboard described in step S300 and enter corresponding working procedure according to the detected result control water cleaning systems of described raw water quality and described dense water water quality and comprise the steps:
S310: according to the detected result of described raw water quality, described control mainboard judges that described former water grade is I, described control mainboard 010 controls described water cleaning systems and enters the first operational mode;
S320: according to the detected result of described raw water quality, described control mainboard judges that described former water grade is II, described control mainboard 010 controls described water cleaning systems and enters the 2nd operational mode;
S330: according to the detected result of described raw water quality, described control mainboard judges that described former water grade is III, described control mainboard 010 controls described water cleaning systems and enters the 3rd operational mode;
S340: according to the detected result of described raw water quality, described control mainboard judges that described former water grade is IV, described control mainboard 010 controls described water cleaning systems and enters the 4th operational mode.
Preferably, as a kind of embodiment, wherein said first operational mode comprises the steps:
S311: described control mainboard described first waste water ratio 910 of control and described 2nd waste water ratio 920 are adjusted to the first state and run until described control mainboard judges that the detected result of described dense water water quality is greater than the first preset value and enters step S312;
S312: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to two-state operation until described control mainboard 010 judges to return after the detected result of described dense water water quality is less than the 2nd preset value performs step S311;
Wherein said 2nd operational mode comprises the steps:
S321: described control mainboard described first waste water ratio 910 of control and described 2nd waste water ratio 920 are adjusted to two-state and run until described control mainboard judges that the detected result of described dense water water quality is greater than the 3rd preset value and enters step S322;
S322: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to third state operation until described control mainboard 010 judges to return after the detected result of described dense water water quality is less than the 4th preset value performs step S321;
Described 3rd operational mode comprises the steps:
S331: described control mainboard described first waste water ratio 910 of control and described 2nd waste water ratio 920 are adjusted to the third state and run until described control mainboard judges that the detected result of described dense water water quality is greater than the 5th preset value and enters step S332;
S332: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the 4th state operation until described control mainboard 010 judges to return execution step S331 after the detected result of described dense water water quality is less than the 6th preset value;
Wherein said 4th operational mode is that described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the 4th state operation.
The first preset value in the present embodiment can set in advance to the 6th preset value, and the first waste water ratio and the 2nd waste water ratio in each state can set in advance.
Wherein, the blowback ratio of the dense water under the first state is D1, the blowback ratio of the dense water under two-state is D2, the blowback ratio of the dense water under the third state is D3, the blowback ratio of the dense water under the 4th state is D4, wherein D1 > D2 > D3 > D4.
For TDS, the control method of the present embodiment is illustrated equally.
Assume that the TDS value of raw water quality is for Y; Dense water water quality TDS value is N, and setting the first preset value S1 is 2.5Y, and the 2nd preset value S2 is 2Y, and the 3rd preset value S3 is 2.5Y, and the 4th preset value S4 is 2Y, and the 5th preset value S5 is 2.5Y, and the 6th preset value S6 is 2Y. The N1 that should be noted that in each preset value is and corresponding raw water quality value. Even grade I is the TDS in former water is 150mg/L, then Y=150mg/L, S1=375mg/L, S2=300mg/L in grade I; Grade II is the TDS content in former water is 400mg/L, then S3=1000mg/L, S4=800mg/L; Grade III is the TDS content in former water is 700mg/L, then S5=1750mg/L, S6=1400mg/L.
Following table is the effect of the control method of embodiment two.
The specific explanations of upper table is as follows:
S310: control mainboard 010 judge former water grade be I (now the TDS value of former water as Y1), control mainboard 010 and control water cleaning systems and enter the first operational mode; Described first operational mode in the present embodiment comprises the steps:
S311: described control mainboard 010 controls described first waste water ratio 910 and described 2nd waste water ratio 920 is adjusted to the first state (blowback ratio D1=7:1) operation until described control mainboard 010 judges that the detected result of described dense water water quality is greater than the first preset value (i.e. N > S1) and enters step S312;
S312: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to two-state (blowback ratio D2=2:1) operation until described control mainboard 010 judges to return after the detected result of described dense water water quality is less than the 2nd preset value (i.e. N < S2) performs step S311;
Wherein said 2nd operational mode comprises the steps:
S321: described control mainboard 010 controls described first waste water ratio 910 and described 2nd waste water ratio 920 is adjusted to two-state (blowback ratio D2=2:1) operation until described control mainboard judges that the detected result of described dense water water quality is greater than the 3rd preset value (i.e. N > S3) and enters step S322;
S322: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the third state (blowback ratio D3=1:2) operation until described control mainboard 010 judges to return after the detected result of described dense water water quality is less than the 4th preset value (i.e. N < S4) performs step S321;
Described 3rd operational mode comprises the steps:
S331: described control mainboard 010 controls described first waste water ratio 910 and described 2nd waste water ratio 920 is adjusted to the third state (blowback ratio D3=1:2) operation until described control mainboard 010 judges that the detected result of described dense water water quality is greater than the 5th preset value (i.e. N > S5) and enters step S332;
S332: described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the 4th state (blowback ratio D4=0:3) operation until described control mainboard 010 judges to return after the detected result of described dense water water quality is less than the 6th preset value (i.e. N < S6) performs step S331;
Wherein said 4th operational mode is that described control mainboard 010 controls the first waste water ratio 910 and the 2nd waste water ratio 920 is adjusted to the 4th state (blowback ratio D4=0:3) operation. Under 4th state, dense water all discharges and does not reflux. Wherein regardless of dense water water quality under the 4th operational mode, dense water all discharges.
The present embodiment adopts raw water quality and dense water water quality two parameters to control the operation of whole water cleaning systems simultaneously; can better control the operational mode of water cleaning systems like this; thus improve the utilization ratio of water resources further; in the poor area of water quality can available protecting reverse osmosis membrane, extend the life-span of reverse osmosis membrane.
The above embodiment only have expressed several enforcement modes of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to patent scope of the present invention. , it is also possible to make some distortion and improvement, it should be appreciated that for the person of ordinary skill of the art, without departing from the inventive concept of the premise 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 claim.
Claims (12)
1. a water cleaning systems, comprise pretreatment unit (100) and reverse-osmosis treated unit (200), it is characterized in that, also comprise concentrate recirculation unit (30), the feed-water end of described concentrate recirculation unit (30) is connected on the dense waterpipe (20) of described reverse-osmosis treated unit (200), and the water side of described concentrate recirculation unit (30) is connected on the inlet channel of described reverse-osmosis treated unit (200);
Described dense waterpipe (20) is provided with the first waste water ratio (910), and on the pipeline of described concentrate recirculation unit (30), is provided with the 2nd waste water ratio (920);
The inlet channel of described reverse-osmosis treated unit (200) is provided with raw water quality detection device (610);
Described water cleaning systems also comprises control mainboard (010), and described control mainboard (010) is detected device (610), described first waste water ratio (910) and described 2nd waste water ratio (920) with described raw water quality and is electrically connected; Described dense waterpipe (20) is also provided with dense water water quality detecting device (620); Described dense water water quality detecting device (620) is electrically connected with described control mainboard (010);
Described control mainboard (010) is for receiving the water quality detection result of described raw water quality detection device (610) and/or described dense water water quality detecting device (620), and the water quality detection result detecting device (610) according to described raw water quality judges the water grade of former water to enter corresponding operational mode with water cleaning systems described in control; Wherein, under each operational mode of described water cleaning systems, described control mainboard (100) controls described first waste water ratio and described 2nd waste water ratio carries out circulation operation between two running statuses.
2. water cleaning systems according to claim 1, it is characterised in that, also it is provided with voltage stabilizing pump (700) between described pretreatment unit (100) and described reverse-osmosis treated unit (200); The tie point (31) of the inlet channel of described concentrate recirculation unit (30) and described reverse-osmosis treated unit (200) is arranged between described pretreatment unit (100) and described voltage stabilizing pump (700).
3. water cleaning systems according to claim 2, it is characterised in that, described raw water quality detection device (610) is arranged between described pretreatment unit (100) and described voltage stabilizing pump (700).
4. the control method of a water cleaning systems according to claim 3, it is characterised in that, comprise the steps:
S100: the detected result of described raw water quality is also sent to control mainboard (010) by raw water quality detection device (610) detection raw water quality;
S200: described control mainboard (010) judges former water grade according to described detected result, and control water cleaning systems according to described former water grade and enter corresponding operational mode; Under each operational mode of described water cleaning systems, described control mainboard (010) controls described first waste water ratio and described 2nd waste water ratio carries out circulation operation between two running statuses.
5. control method according to claim 4, it is characterised in that, described former water grade is divided into I, II, III and IV;
Enter corresponding operational mode according to described former water grade control water cleaning systems described in step S200 to comprise the steps:
S210: described control mainboard (010) judges that described former water grade is I, and described control mainboard (010) controls described water cleaning systems and enters the first operational mode;
S220: described control mainboard (010) judges that described former water grade is II, described control mainboard (010) controls described water cleaning systems and enters the 2nd operational mode;
S230: described control mainboard (010) judges that described former water grade is III, described control mainboard (010) controls described water cleaning systems and enters the 3rd operational mode;
S240: described control mainboard (010) judges that described former water grade is IV, described control mainboard (010) controls described water cleaning systems and enters the 4th operational mode.
6. control method according to claim 5, it is characterised in that,
Wherein said first operational mode comprises the steps:
S211: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to after the first state runs the T1 time and enters step S212;
S212: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to the two-state operation T2 time, returns afterwards and performs step S211;
Wherein said 2nd operational mode comprises the steps:
S221: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to after two-state runs the T2 time and enters step S222;
S222: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to the third state operation T3 time, returns afterwards and performs step S221;
Wherein said 3rd operational mode comprises the steps:
S231: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to after the third state runs the T3 time and enters step S232;
S232: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) was adjusted to for the 4th state operation T4 time, returns afterwards and performs step S231;
Wherein said 4th operational mode is that described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to the 4th state operation.
7. control method according to claim 6, it is characterised in that, the scope of described T1, T2, T3 and T4 is 1min��20min.
8. the control method of a water cleaning systems according to claim 3, it is characterised in that, comprise the steps:
S100: the detected result of described raw water quality is also sent to control mainboard (010) by raw water quality detection device (610) detection raw water quality;
S200: dense water water quality detecting device (620) is detected dense water water quality and the detected result of described dense water water quality is sent to control mainboard (010);
S300: the detected result that described control mainboard (010) detects device according to described raw water quality judges former water grade, and control described water cleaning systems according to the detected result of described former water grade, described raw water quality and described dense water water quality and enter corresponding operational mode; Under each operational mode of described water cleaning systems, described control mainboard (100) controls described first waste water ratio and described 2nd waste water ratio carries out circulation operation between two running statuses.
9. control method according to claim 8, it is characterised in that, described former water grade is divided into I, II, III and IV;
Control mainboard (010) described in step S300 to control described water cleaning systems according to the detected result of described raw water quality and described dense water water quality and enter corresponding operational mode and comprise the steps:
S310: according to the detected result of described raw water quality, described control mainboard (010) judges that described former water grade is I, described control mainboard (010) controls described water cleaning systems and enters the first operational mode;
S320: according to the detected result of described raw water quality, described control mainboard (010) judges that described former water grade is II, described control mainboard (010) controls described water cleaning systems and enters the 2nd operational mode;
S330: according to the detected result of described raw water quality, described control mainboard (010) judges that described former water grade is III, described control mainboard (010) controls described water cleaning systems and enters the 3rd operational mode;
S340: according to the detected result of described raw water quality, described control mainboard (010) judges that described former water grade is IV, described control mainboard (010) controls described water cleaning systems and enters the 4th operational mode.
10. control method according to claim 9, it is characterised in that,
Wherein said first operational mode comprises the steps:
S311: described control mainboard (010) controls described first waste water ratio (910) and described 2nd waste water ratio (920) is adjusted to the first state operation until described control mainboard (010) judges that the detected result of described dense water water quality is greater than the first preset value and enters step S312;
S312: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to two-state operation until described control mainboard (010) judges to return after the detected result of described dense water water quality is less than the 2nd preset value performs step S311;
Wherein said 2nd operational mode comprises the steps:
S321: described control mainboard (010) controls described first waste water ratio (910) and described 2nd waste water ratio (920) is adjusted to two-state operation until described control mainboard (010) judges that the detected result of described dense water water quality is greater than the 3rd preset value and enters step S322;
S322: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to third state operation until described control mainboard (010) judges to return after the detected result of described dense water water quality is less than the 4th preset value performs step S321;
Described 3rd operational mode comprises the steps:
S331: described control mainboard (010) controls described first waste water ratio (910) and described 2nd waste water ratio (920) is adjusted to third state operation until described control mainboard (010) judges that the detected result of described dense water water quality is greater than the 5th preset value and enters step S332;
S332: described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to the 4th state operation until described control mainboard (010) judges to return execution step S331 after the detected result of described dense water water quality is less than the 6th preset value;
Wherein said 4th operational mode is that described control mainboard (010) controls the first waste water ratio (910) and the 2nd waste water ratio (920) is adjusted to the 4th state operation.
The 11. control methods according to claim 5 or 9, it is characterized in that, dense water blowback ratio under first state is D1, dense water blowback ratio under two-state is D2, dense water blowback ratio under the third state is D3, dense water blowback ratio under 4th state is D4, wherein D1 > D2 > D3 > D4.
The 12. control methods according to claim 5 or 8, it is characterised in that, described detected result is TDS or hardness.
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| CN105152378A (en) * | 2015-09-14 | 2015-12-16 | 珠海格力电器股份有限公司 | Water purifier with pure water reflux device |
| CN106444434A (en) * | 2015-12-04 | 2017-02-22 | 宁波井亿家环境科技有限公司 | Main board |
| CN105753103A (en) * | 2016-02-27 | 2016-07-13 | 孙华 | Liquid purifying method and liquid purifying system |
| WO2017143606A1 (en) * | 2016-02-27 | 2017-08-31 | 孙华 | Method and system for liquid purification |
| CN106006844A (en) * | 2016-05-09 | 2016-10-12 | 佛山市云米电器科技有限公司 | Water purifying system and reverse osmosis filter element washing condition judging method thereof |
| CN105797587B (en) * | 2016-05-09 | 2020-05-05 | 佛山市云米电器科技有限公司 | Water purification system and automatic working pressure adjusting method thereof |
| CN105771657B (en) * | 2016-05-09 | 2019-03-08 | 佛山市云米电器科技有限公司 | A kind of water flow adjusting method of water purification system and its condensed water and pure water |
| CN107055833A (en) * | 2016-11-30 | 2017-08-18 | 浙江苏泊尔家电制造有限公司 | Water cleaning systems and its control method |
| CN108264155A (en) * | 2017-01-04 | 2018-07-10 | 北京思维力科技发展有限公司 | A kind of water purifier for adjusting production water TDS values |
| CN107601622A (en) * | 2017-09-18 | 2018-01-19 | 珠海格力电器股份有限公司 | water treatment system and control method thereof |
| CN108558045A (en) * | 2018-03-21 | 2018-09-21 | 深圳市家乐士净水科技有限公司 | A kind of balance water treatment system |
| CN109592810A (en) * | 2019-01-30 | 2019-04-09 | 四川悠服科技有限公司 | The water quality protection method and water purification machine of water purification machine |
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| CN102183473B (en) * | 2011-01-27 | 2013-05-08 | 霍尼韦尔综合科技(中国)有限公司 | Method for detecting liquid quality in liquid filtering system |
| JP6070345B2 (en) * | 2013-03-27 | 2017-02-01 | 三浦工業株式会社 | Reverse osmosis membrane separator |
| CN203360070U (en) * | 2013-06-27 | 2013-12-25 | 珠海格力电器股份有限公司 | Water purification system |
| CN203355618U (en) * | 2013-06-27 | 2013-12-25 | 珠海格力电器股份有限公司 | Water purification system with TDS detection and control |
| CN203360147U (en) * | 2013-07-05 | 2013-12-25 | 李志红 | Intelligent wastewater-free RO (reverse osmosis) water purifier |
| CN203845879U (en) * | 2014-05-22 | 2014-09-24 | 青岛爱格玛电器有限公司 | Efficient water-saving type reverse osmosis water purifier |
| CN204185310U (en) * | 2014-10-29 | 2015-03-04 | 珠海格力电器股份有限公司 | water purification system |
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