CN104402089A - Reverse osmosis water purifier and controlling method thereof - Google Patents
Reverse osmosis water purifier and controlling method thereof Download PDFInfo
- Publication number
- CN104402089A CN104402089A CN201410545624.1A CN201410545624A CN104402089A CN 104402089 A CN104402089 A CN 104402089A CN 201410545624 A CN201410545624 A CN 201410545624A CN 104402089 A CN104402089 A CN 104402089A
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- reverse osmosis
- pressure
- value
- water purifier
- film
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- 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
-
- 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
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a reverse osmosis water purifier and a controlling method thereof and belongs to the field of water purifier devices and the controlling method thereof. The reverse osmosis water purifier is designed since control of a before-membrane pressure value in the device in the prior art is lacked. The reverse osmosis water purifier includes a control apparatus, a stabilized-pressure pump and a reverse osmosis membrane filter core. A pressure controlling apparatus is disposed between the stabilized pressure pump and the reverse osmosis membrane filter core and is used for measuring the before-membrane pressure value Pm of the reverse osmosis membrane filter core. When the before-membrane pressure value Pm is higher than a standard value Pj, water is discharged for reducing the before-membrane pressure value Pm. The invention also discloses the controlling method of the reverse osmosis water purifier. In the reverse osmosis water purifier, the reverse osmosis membrane filter core is ensured to work under an optimum pressure so that a water purifying effect is further ensured to be better. The controlling method of the reverse osmosis water can ensure the water purifying effect to be in an optimum condition all the time and water quality to be better.
Description
Technical field
The present invention relates to the control method of a kind of reverse osmosis water purifier and this reverse osmosis water purifier.
Background technology
Reverse osmosis water purifier is also referred to as RO water-purifying machine (RO:Reverse Osmosis), and one of its core apparatus realizing purifying water process is reverse osmosis membrane filter element.The principle of work of reverse osmosis membrane filter element is that these materials and water can not be separated through semi-permeable membranes by other material under the effect higher than solution osmotic pressure, realizes the object of purification.In order to ensure the filter effect of reverse osmosis membrane filter element, need control reverse osmosis membrane filter element film before force value.
Be provided with stabilized pressure pump in existing reverse osmosis water purifier, for control reverse osmosis membrane filter element film before force value.Due to the impact of environment for use factor (such as hydraulic pressure, filter core stopping state etc.) and stabilized pressure pump self working order, all can there is certain fluctuation in the discharge pressure of stabilized pressure pump and aquifer yield.When aquifer yield is larger reverse osmosis membrane filter element film before force value can be too high, affect purifying water effect.
Summary of the invention
An object of the present invention is propose one ensure reverse osmosis membrane filter element be operated in optimum pressure under, the better reverse osmosis water purifier of purifying water effect.
Another object of the present invention proposes a kind of reverse osmosis water purifier of not wasting water.
Another object of the present invention proposes a kind ofly to ensure the control method that purifying water effect is in the reverse osmosis water purifier of optimum regime always.
For reaching this object, on the one hand, the present invention is by the following technical solutions:
A kind of reverse osmosis water purifier, comprises control device, stabilized pressure pump and reverse osmosis membrane filter element, between described stabilized pressure pump and reverse osmosis membrane filter element, is provided with pressure control device; Described pressure control device for measure described reverse osmosis membrane filter element film before pressure value P m discharging water when pressure value P m is greater than standard value Pj before described film reduce pressure value P m before described film.
Particularly, the described pressure control device switching control pilot that comprises pressure sensing cell, offlet and be arranged on described offlet; Wherein, described pressure sensing cell is arranged between described stabilized pressure pump and reverse osmosis membrane filter element, described offlet is connected to the water outlet of described stabilized pressure pump, and described switching control pilot controls opening or closing of described offlet according to the detected result of described pressure sensing cell.
Further, the free end of described offlet is connected to the dense water pipe of water-purifying machine.
Particularly, the free end of described offlet is connected to the water-in of described stabilized pressure pump.
Particularly, the free end of described offlet is unsettled.
Particularly, described switching control pilot is adjustable electromagnetic valve.
Particularly, described pressure sensing cell is pressure transmitter.
On the other hand, the present invention is by the following technical solutions:
A kind of control method of above-mentioned reverse osmosis water purifier, described method is pressure value P m before the film detecting reverse osmosis membrane filter element in water-purifying machine working process, discharge water when before described film, pressure value P m is greater than standard value Pj, until pressure value P m is less than or equal to standard value Pj before described film.
Particularly, described method comprises the steps:
Step 1, in control device established standards value Pj;
Step 2, start described stabilized pressure pump and reverse osmosis membrane filter element, close offlet;
Step 3, pressure sensing cell measure pressure value P m before film in real time, and observed value is sent to described control device;
Pressure value P m before film and described standard value Pj compares by step 4, described control device, goes to step 5, go to step 3 as Pm≤Pj as Pm > Pj;
Step 5, open described switching control pilot;
Step 6, continue outwards to discharge water by offlet, the pressure sensing cell after reaching setting-up time that discharges water measures pressure value P m before film, and observed value is sent to described control device;
Pressure value P m before film and described standard value Pj compares by step 7, described control device, goes to step 6, close described switching control pilot and go to step 3 as Pm≤Pj as Pm > Pj.
Particularly, described standard value Pj be value range (Pj1, Pj2]; When before Pj1 < film during pressure value P m≤Pj2 described switching control pilot keep current state constant.
Reverse osmosis water purifier of the present invention is provided with pressure control device between stabilized pressure pump and reverse osmosis membrane filter element, utilize pressure control device to pressure value P m before the film measuring reverse osmosis membrane filter element and pressure value P m before discharge water to reduce film when pressure value P m before film is greater than standard value Pj, under ensureing that reverse osmosis membrane filter element is operated in optimum pressure, and then ensure that purifying water effect is better.The free end of offlet is connected to the water-in of stabilized pressure pump, leads back the water that pressure release is released in water-purifying machine, avoids waste water resource.
Before the control method of reverse osmosis water purifier of the present invention detects the film of reverse osmosis membrane filter element in real time, pressure value P m, the pressure value P m before with controlling diaphragm that discharges water when pressure value P m before film is greater than standard value Pj are in optimum value, ensure that purifying water effect is in optimum regime always, water quality is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of the reverse osmosis water purifier that the preferred embodiment of the present invention one provides;
Fig. 2 is the structural representation of the reverse osmosis water purifier that the preferred embodiment of the present invention two provides;
Fig. 3 is the structural representation of the reverse osmosis water purifier that the preferred embodiment of the present invention two provides.
Be labeled as in figure:
1, tee ball valve; 2, the cotton filter core of PP; 3, low-tension switch; 4, granulated carbon filter core; 5, carbon-point filter core; 6, magnetic valve; 7, under meter; 8, stabilized pressure pump; 9, reverse osmosis membrane filter element; 11, dense water pipe; 12, high-voltage switch gear; 13, pressure pot; 14, post active carbon composite filter element; 15, water intaking water tap; 21, pressure sensing cell; 22, offlet; 23, switching control pilot.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Preferred embodiment one:
This preferred embodiment provides a kind of reverse osmosis water purifier.As shown in Figure 1, this reverse osmosis water purifier comprises the tee ball valve 1, the cotton filter core 2 of PP, low-tension switch 3, granulated carbon filter core 4, carbon-point filter core 5, magnetic valve 6, under meter 7, stabilized pressure pump 8, pressure sensing cell 21, reverse osmosis membrane filter element 9, post active carbon composite filter element 14 and the water intaking water tap 15 that are connected by water pipe successively; Also comprise offlet 22, the switching control pilot 23 be arranged on offlet 22, the dense water pipe 11 being connected to reverse osmosis membrane filter element 9 water outlet and high-voltage switch gear 12 and be connected to the pressure pot 13 of high-voltage switch gear 12 by water pipe.Tee ball valve 1 is connected to water pipe.
Pressure sensing cell 21 is arranged between stabilized pressure pump 8 and reverse osmosis membrane filter element 9, and offlet 22 is connected to the water outlet of stabilized pressure pump 8, and switching control pilot 23 controls opening or closing of offlet 22 according to the detected result of pressure sensing cell 21.The free end of offlet 22 is connected to the dense water pipe 11 of water-purifying machine.Switching control pilot 23 is adjustable electromagnetic valve.Pressure sensing cell 21 is pressure transmitter.
This water-purifying machine is provided with pressure value P m before the film for measuring reverse osmosis membrane filter element 9 and the device of pressure value P m before discharging water to reduce film when pressure value P m before film is greater than standard value Pj between stabilized pressure pump 8 and reverse osmosis membrane filter element 9, can pressure value P m before controlling diaphragm more accurately when the unstable working condition of stabilized pressure pump 8, to ensure the purifying water effect of reverse osmosis membrane filter element 9.
The control method of reverse osmosis water purifier is pressure value P m before the film detecting reverse osmosis membrane filter element 9 in water-purifying machine working process, discharges water, until pressure value P m is less than or equal to standard value Pj before film when pressure value P m before film is greater than standard value Pj.
Concrete, the method comprises the steps:
Step 1, in control device established standards value Pj;
Step 2, startup stabilized pressure pump 8 and reverse osmosis membrane filter element 9, close offlet 22;
Pressure value P m before step 3, pressure sensing cell 21 real-time measurement film, sends to control device by observed value;
Pressure value P m before film and standard value Pj compares by step 4, control device, goes to step 5, go to step 3 as Pm≤Pj as Pm > Pj;
Step 5, opening switch control valve 23, outwards discharged water by offlet 22, pressure value P m before reduction film;
Step 6, continue outwards to discharge water by offlet 22, the pressure sensing cell 21 after reaching setting-up time that discharges water measures pressure value P m before film, and observed value is sent to control device;
Pressure value P m before film and standard value Pj compares by step 7, control device, goes to step 6 as Pm > Pj, and the closing switch control valve 23 as Pm≤Pj also goes to step 3.
Continue to perform above-mentioned steps in the process of water-purifying machine work, until close water-purifying machine.
Preferred embodiment two:
This preferred embodiment provides a kind of reverse osmosis water purifier, and its structure is substantially identical with preferred embodiment one.This reverse osmosis water purifier comprises control device, stabilized pressure pump 8 and reverse osmosis membrane filter element 9, between stabilized pressure pump 8 and reverse osmosis membrane filter element 9, be provided with pressure control device; Pressure control device for measure reverse osmosis membrane filter element 9 film before pressure value P m discharging water when pressure value P m before film is greater than standard value Pj reduce pressure value P m before film.
Difference is: the concrete structure of pressure control device is not limit, and can realize the effect of pressure measurement, waterproof pressure release; Wherein, the device of pressure detection is not limited to pressure transmitter, and switching control pilot is not limited to adjustable electromagnetic valve.
The free end of offlet 22 is not limited to be connected to dense water pipe, can also as shown in Figure 2, and the free end of offlet 22 is unsettled, discharges water independently; Also can as shown in Figure 3, the water-in being connected to stabilized pressure pump 8 of offlet 22, these water through rough purification are not discharge simply but lead back in auto levelizer again, can continue to use, and avoid causing waste.
Control method is also substantially identical with preferred embodiment one, difference part be, standard value Pj be value range (Pj1, Pj2]; When before Pj1 < film during pressure value P m≤Pj2 switching control pilot 23 keep current state constant.That is, when pressure value P m before film controlled obtained be very near the mark value Pj time just no longer change switching control pilot 23 working order, avoid open-closed-open-pass continually, to extend the work-ing life of switching control pilot 23.
The opened condition of switching control pilot 23 can be one also can be multiple, namely switching control pilot 23 can be in standard-sized sheet, half-open, 1/3 to open, 3/4 multiple state such as to open, so that pressure value P m before adjusting film more accurately.
Claims (10)
1. a reverse osmosis water purifier, comprises control device, stabilized pressure pump (8) and reverse osmosis membrane filter element (9), it is characterized in that, between described stabilized pressure pump (8) and reverse osmosis membrane filter element (9), be provided with pressure control device; Described pressure control device for measure described reverse osmosis membrane filter element (9) film before pressure value P m discharging water when pressure value P m is greater than standard value Pj before described film reduce pressure value P m before described film.
2. reverse osmosis water purifier according to claim 1, it is characterized in that, the switching control pilot (23) that described pressure control device comprises pressure sensing cell (21), offlet (22) and is arranged on described offlet (22); Wherein, described pressure sensing cell (21) is arranged between described stabilized pressure pump (8) and reverse osmosis membrane filter element (9), described offlet (22) is connected to the water outlet of described stabilized pressure pump (8), and described switching control pilot (23) controls opening or closing of described offlet (22) according to the detected result of described pressure sensing cell (21).
3. reverse osmosis water purifier according to claim 2, is characterized in that, the free end of described offlet (22) is connected to the dense water pipe (11) of water-purifying machine.
4. reverse osmosis water purifier according to claim 2, is characterized in that, the free end of described offlet (22) is connected to the water-in of described stabilized pressure pump (8).
5. reverse osmosis water purifier according to claim 2, is characterized in that, the free end of described offlet (22) is unsettled.
6. reverse osmosis water purifier according to claim 2, is characterized in that, described switching control pilot (23) is adjustable electromagnetic valve.
7. reverse osmosis water purifier according to claim 2, is characterized in that, described pressure sensing cell (21) is pressure transmitter.
8. one kind as arbitrary in claim 1 to 7 as described in the control method of reverse osmosis water purifier, it is characterized in that, described method is pressure value P m before the film detecting reverse osmosis membrane filter element (9) in water-purifying machine working process, discharge water when before described film, pressure value P m is greater than standard value Pj, until pressure value P m is less than or equal to standard value Pj before described film.
9. the control method of reverse osmosis water purifier according to claim 8, is characterized in that, described method comprises the steps:
Step 1, in control device established standards value Pj;
Step 2, start described stabilized pressure pump (8) and reverse osmosis membrane filter element (9), close offlet (22);
Pressure value P m before step 3, pressure sensing cell (21) real-time measurement film, sends to described control device by observed value;
Pressure value P m before film and described standard value Pj compares by step 4, described control device, goes to step 5, go to step 3 as Pm≤Pj as Pm > Pj;
Step 5, open described switching control pilot (23);
Step 6, continue outwards to discharge water by offlet (22), the pressure sensing cell (21) after reaching setting-up time that discharges water measures pressure value P m before film, and observed value is sent to described control device;
Pressure value P m before film and described standard value Pj compares by step 7, described control device, goes to step 6, close described switching control pilot (23) and go to step 3 as Pm≤Pj as Pm > Pj.
10. the control method of reverse osmosis water purifier according to claim 8 or claim 9, is characterized in that, described standard value Pj be value range (Pj1, Pj2]; When before Pj1 < film during pressure value P m≤Pj2 described switching control pilot (23) keep current state constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545624.1A CN104402089B (en) | 2014-10-15 | 2014-10-15 | Reverse osmosis water purifier and its control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410545624.1A CN104402089B (en) | 2014-10-15 | 2014-10-15 | Reverse osmosis water purifier and its control method |
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| CN104402089A true CN104402089A (en) | 2015-03-11 |
| CN104402089B CN104402089B (en) | 2017-04-05 |
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| CN201410545624.1A Active CN104402089B (en) | 2014-10-15 | 2014-10-15 | Reverse osmosis water purifier and its control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 purification machine with pure water reflux unit |
| CN105314709A (en) * | 2015-11-24 | 2016-02-10 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system and control method of same |
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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 purification machine with pure water reflux unit |
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| Publication number | Publication date |
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| CN104402089B (en) | 2017-04-05 |
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