CN109626616A - Water purification system and its control method - Google Patents
Water purification system and its control method Download PDFInfo
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- CN109626616A CN109626616A CN201811593558.XA CN201811593558A CN109626616A CN 109626616 A CN109626616 A CN 109626616A CN 201811593558 A CN201811593558 A CN 201811593558A CN 109626616 A CN109626616 A CN 109626616A
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- water
- water purification
- purification system
- branch
- control valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 260
- 238000000746 purification Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000011010 flushing procedure Methods 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 10
- 238000001728 nano-filtration Methods 0.000 claims description 3
- 238000001223 reverse osmosis Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 abstract description 15
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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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
- C02F1/001—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
- C02F1/441—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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
-
- 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
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of water purification system and its control methods, the water purification system includes water purification branch, it is sequentially connected in series in the water purification branch and is provided with water inlet switch and filter device, the water purification system further includes rinsing return line, the first end for rinsing return line is connected to the pure water mouth of the filter device, the second end for rinsing return line is connected between the water inlet switch and the raw water mouth of the filter device, is provided with water storage device on the flushing return line.The present invention rinses return line and water storage device by setting, when purifier can will be made to stop water processed, pure water in water storage container enters in filter device, making filter device two sides is pure water, filter device, which is immersed in pure water, can slow down pollution of the impurity to membrane filter, extend the service life of membrane filter, qualified water can be rapidly achieved during water processed, reduce the waste of water resource.
Description
Technical field
The present invention relates to water purification system fields, in particular to a kind of water purification system and its control method.
Background technique
Currently, water purifier has become essential in life since quality problem and people's lives level step up
One of household electrical appliance.It relies primarily on membrane filter in existing purifier to be filtered raw water, however, working as the purifier
When being in standby, raw water and pure water can be existed simultaneously in the membrane filter, and the concentration of the TDS (total dissolved solid) of raw water
To be much higher than the TDS of pure water.If the purifier is in standby for a long time, this will lead to the ion in raw water and is diffused into
In pure water, so cause purifier next time be switched on Pure-water Making when, the TDS concentration of first cup pure water is relatively high, influences to use
The experience at family.
Pure water is stored in water storage device although taking in the prior art, user goes out using in Shi Xiancong water storage device
Water, after device detection water quality to be detected is qualified, then the water outlet from membrane filter.Membrane filter still remains original under program standby mode
Water and pure water, long-term standby influence filter element life.
Summary of the invention
The invention discloses a kind of water purification system and its control methods, solve the long-term standby influence filter of existing water purification system
The problem of core service life.
According to an aspect of the present invention, disclose a kind of water purification system, including water purification branch, in the water purification branch according to
Secondary to be arranged in series water inlet switch and filter device, the water purification system further includes rinsing return line, the flushing return pipe
The first end on road is connected to the pure water mouth of the filter device, and the second end for rinsing return line is connected to the water inlet and opens
It closes between the raw water mouth of the filter device, is provided with water storage device on the flushing return line.
Further, be provided on the flushing return line with concatenated first control valve of the water storage device, it is described
First control valve is located between the water storage device and the first end for rinsing return line.
Further, there is preset pressure, the water storage device is for storing pure water or passing through inside the water storage device
Pure water is discharged preset pressure.
Further, the water storage device is pressure pot.
Further, the first check valve is additionally provided on the flushing return line, first check valve is located at described
Between first control valve and the second end for rinsing return line, first check valve is for preventing raw water from rinsing reflux certainly
Pipeline first end enters in the water storage device.
Further, the water purification system further includes the second control valve being arranged in the water purification branch, and described second
Control valve is located between the filter device and the first end for rinsing return line.
Further, the water purification system further includes second one-way valve, and the second one-way valve setting is in second control
The downstream of valve processed, the first end for rinsing return line are connected between second control valve and the second one-way valve.
Further, the water purification system further includes being arranged in the water purification branch and being located at the filter device and institute
The detection device between the second control valve is stated, the detection device is for detecting TDS concentration.
Further, the water purification system further includes that the pressure switch and postposition filter in the second one-way valve downstream is arranged in
Core.
Further, the water purification system further includes that the front filter element of the water inlet switch upstream is arranged in.
Further, the water purification system further includes waste water branch, and the filter device further includes wastewater outlet, described useless
Water branch is connected to the wastewater outlet of the filter device；The water purification system further includes draining branch, the draining branch
First end is connected between the detection device and second control valve, and the draining branch road has been arranged in series third control
Valve.
Further, the waste water branch road is provided with proportioning valve.
Further, the filter device is reverse-osmosis filtering device or nanofiltration filter device.
Further, booster pump is additionally provided in the water purification branch, the booster pump is located at the water inlet switch and institute
It states between filter device, the second end for rinsing return line is connected between the water inlet switch and the booster pump.
According to another aspect of the present invention, a kind of control method is disclosed, for above-mentioned water purification system, the water purification
System further includes the second control valve being arranged in the water purification branch, and second control valve is located at the filter device and institute
It states and rinses between the first end of return line；The water purification system further includes being arranged in the water purification branch and being located at the mistake
The detection device between device and second control valve is filtered, the detection device is for detecting TDS concentration；The control method
Include: step S10: obtaining the practical TDS value x of pure water, obtains default TDS value y；Step S20: it according to practical TDS value x, presets
TDS value y controls the water purification system work.
Further, the water purification system further includes waste water branch, and the filter device further includes wastewater outlet, described useless
Water branch is connected to the wastewater outlet of the filter device；The water purification system further includes draining branch, the draining branch
First end is connected between the detection device and second control valve, and the draining branch road has been arranged in series third control
Valve, the step S20 is the following steps are included: step S21: as x >=y, second control valve is closed, the third control valve
It opens, the pure water in the filter device drains into outflow in the waste water branch, while water storage device by the draining branch
Interior pure water is for users to use；Step S22: as x < y, second control valve is opened, and the third control valve is closed, institute
State pure water in filter device for users to use；Step S23: after user completes water intaking, the booster pump works on, Zhi Daochun
Water fills up water storage device, and second control valve is closed, and the third control valve is closed, and the first control valve is opened, the storage
Pure water in water installations flows into filter device raw water end, and raw water is squeezed out, is discharged by waste water branch.
The present invention rinses return line and water storage device by setting, when purifier can will be made to stop water processed, storage
Pure water in water container enters in filter device, and filter device two sides is made to be pure water, and filter device is immersed in pure water can be with
Slow down pollution of the impurity to membrane filter, extend the service life of membrane filter, qualified water can be rapidly achieved during water processed, reduces water money
The waste in source.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the water purification system of the embodiment of the present invention；
Legend: 1, water inlet switch；2, booster pump；3, filter device；4, water storage device；5, the first control valve；6, first is single
To valve；7, the second control valve；8, second one-way valve；9, detection device；10, front filter element；11, pressure switch；12, postposition is filtered
Core；13, third control valve；14, proportioning valve.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, but is not limited to the content on specification.
The invention discloses a kind of water purification system, including water purification branch, it is sequentially connected in series to be provided with into water in water purification branch and opens
1 and filter device 3 is closed, water purification system further includes rinsing return line, rinses the pure of the first end of return line and filter device 3
Mouth of a river connection, the second end for rinsing return line are connected between water inlet switch 1 and the raw water mouth of filter device 3, rinse reflux
Water storage device 4 is provided on pipeline.The present invention rinses return line and water storage device 4 by setting, water purification can will be made to set
It is standby that pure water in water storage container enters in filter device 3, and making 3 two sides of filter device is pure water when stopping water processed, there is no from
The pressure difference of son diffusion, effectively solves the problems, such as that first glass of water TDS value is high, while filter device 3 is immersed in pure water and can slow down
Pollution of the impurity to membrane filter extends the service life of membrane filter, can be rapidly achieved qualified water during water processed, reduce water resource
Waste.
In the above-described embodiments, rinse return line on be provided with concatenated first control valve 5 of water storage device 4, first
Control valve 5 is located at water storage device 4 and rinses between the first end of return line.Water storage dress is controlled by the first control valve 5 of setting
Set 4, it can realize the storage of water storage device 4, the effect of release pure water and washing and filtering device 3, both can effectively solve the
The high problem of one glass of water TDS value, making 3 two sides of filter device is pure water, and there is no the pressure differences of ion diffusion, can slow down impurity
Pollution to membrane filter extends the service life of membrane filter, can be rapidly achieved qualified water during water processed, reduce the wave of water resource
Take.
It is understood that having preset pressure inside water storage device 4, water storage device 4 is for storing pure water or by pre-
If pure water is discharged pressure, such as: water storage device 4 is pressure pot.
In the above-described embodiments, it rinses on return line and is additionally provided with the first check valve 6, the first check valve 6 is located at first
Between control valve 5 and the second end of flushing return line, the first check valve 6 is for preventing raw water from flushing return line first end
Into in water storage device 4.
In the above-described embodiments, water purification system further includes the second control valve 7 being arranged in water purification branch, the second control valve
7 are located at filter device 3 and rinse between the first end of return line.By the way that the second control valve 7 is arranged, the second control can be passed through
Valve 7 is closed, and prevents the water of the high TDS value of 3 pure water section of filter device from being taken away by user, to avoid first glass of water TDS value is high from asking
Topic.
In the above-described embodiments, water purification system further includes second one-way valve 8, and second one-way valve 8 is arranged in the second control valve 7
Downstream, the first end for rinsing return line is connected between the second control valve 7 and second one-way valve 8, prevents pure water from flowing back.
In the above-described embodiments, water purification system further includes being arranged in water purification branch and being located at filter device 3 and the second control
Detection device 9 between valve 7 processed, detection device 9 for detecting TDS concentration, and detection water purification system standby time and/or
The pure water parameter of water purification system can be TDS probe or other water quality detecting devices.It can basis by setting detection device 9
Practical TDS value, default TDS value, control water purification system work make effectively to solve first glass full of pure water in the state of standby
The problem of water TDS high, while membrane filter is immersed in pure water can slow down pollution of the impurity to membrane filter, extends the longevity of membrane filter
Life, water processed can be rapidly achieved qualified water in the process, reduce the waste of water resource.
In the above-described embodiments, water purification system further includes that the pressure switch 11 and postposition in 8 downstream of second one-way valve is arranged in
Filter core 12.It can be further improved filter effect by setting pressure switch 11 and postposition filter core 12, improve user experience.
In the above-described embodiments, water purification system further includes that the front filter element 10 of 1 upstream of water inlet switch is arranged in.Pass through setting
Front filter element 10 can pre-process raw water, so that raw water be made to obtain preliminary purification, improve the filtering effect of filter device 3
Fruit extends the service life of filter device.
In the above-described embodiments, water purification system further includes waste water branch, and filter device 3 further includes wastewater outlet, waste water branch
Road is connected to the wastewater outlet of filter device 3；Water purification system further includes draining branch, and the first end for draining branch is connected to detection
Between device 9 and the second control valve 7, draining branch road has been arranged in series third control valve 13.Branch is drained by setting, it can be with
It is expelled directly out the pure water of high TDS value by draining branch, prevents user from getting the water of high TDS value.It is understood that waste water
Branch road is provided with proportioning valve 14.
In the above-described embodiments, filter device 3 is reverse-osmosis filtering device or nanofiltration filter device.
In the above-described embodiments, booster pump 2 is additionally provided in water purification branch, booster pump 2 is located at water inlet switch 1 and filtering fills
It sets between 3, the second end for rinsing return line is connected between water inlet switch 1 and booster pump 2.It can be with by setting booster pump 2
Improve the filter efficiency of filter device.
According to another aspect of the present invention, a kind of control method is also disclosed, for above-mentioned water purification system, water purification system
It further include the second control valve 7 being arranged in water purification branch, the second control valve 7 is located at filter device 3 and rinses return line
Between first end；Water purification system further includes being arranged in water purification branch and the inspection between filter device 3 and the second control valve 7
Device 9 is surveyed, detection device 9 is for detecting TDS concentration；Control method includes:
Step S10: obtaining the practical TDS value x of pure water, obtains default TDS value y；
Step S20: according to practical TDS value x, default TDS value y, control water purification system work.
In the above-described embodiments, water purification system further includes waste water branch, and filter device 3 further includes wastewater outlet, waste water branch
Road is connected to the wastewater outlet of filter device 3；Water purification system further includes draining branch, and the first end for draining branch is connected to detection
Between device 9 and the second control valve 7, draining branch road be arranged in series third control valve 13, step S20 the following steps are included:
Step S21: as x >=y, the second control valve 7 is closed, and third control valve 13 is opened, and the pure water in filter device 3 is logical
It crosses draining branch and drains into outflow in waste water branch, while the pure water in water storage device 4 is for users to use；
Step S22: as x < y, the second control valve 7 is opened, and third control valve 13 is closed, and the pure water in filter device 3 supplies
User uses；
Step S23: after user completes water intaking, booster pump 2 works on, and until pure water fills up water storage device 4, second is controlled
Valve 7 processed is closed, and third control valve 13 is closed, and the first control valve 5 is opened, 3 raw water of pure water inflow filter in water storage device 4
End, raw water is squeezed out, is discharged by waste water branch.
Obviously, above embodiment of the invention be only to clearly illustrate example of the present invention, and not be
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.Here all embodiments can not be exhaustive.It is all to belong to this
The obvious changes or variations that the technical solution of invention is extended out are still in the scope of protection of the present invention.
Claims (16)
1. a kind of water purification system, including water purification branch, it is sequentially connected in series in the water purification branch and is provided with water inlet switch (1) and filtering
Device (3), which is characterized in that
The water purification system further includes rinsing return line, the first end for rinsing return line and the filter device (3)
The connection of pure water mouth, the second end for rinsing return line is connected to the water inlet switch (1) and the filter device (3)
Between raw water mouth, water storage device (4) are provided on the flushing return line.
2. water purification system according to claim 1, which is characterized in that
It is provided on the flushing return line and concatenated first control valve (5) of the water storage device (4), first control
Valve (5) is located between the water storage device (4) and the first end for rinsing return line.
3. water purification system according to claim 1, which is characterized in that
There is preset pressure, the water storage device (4) is for storing pure water or passing through preset pressure inside the water storage device (4)
Pure water is discharged.
4. water purification system according to claim 1, which is characterized in that
The water storage device (4) is pressure pot.
5. water purification system according to claim 2, which is characterized in that
It is additionally provided on the flushing return line the first check valve (6), first check valve (6) is located at first control
Between valve (5) and the second end for rinsing return line, first check valve (6) is for preventing raw water from rinsing return pipe certainly
Road first end enters in the water storage device (4).
6. water purification system according to claim 1, which is characterized in that
The water purification system further includes the second control valve (7) being arranged in the water purification branch, the second control valve (7) position
Between the filter device (3) and the first end for rinsing return line.
7. water purification system according to claim 6, which is characterized in that
The water purification system further includes second one-way valve (8), and the second one-way valve (8) is arranged in second control valve (7)
Downstream, the first end for rinsing return line be connected to second control valve (7) and the second one-way valve (8) it
Between.
8. water purification system according to claim 6, which is characterized in that
The water purification system further includes being arranged in the water purification branch and being located at the filter device (3) and second control
Detection device (9) between valve (7), the detection device (9) is for detecting TDS concentration.
9. water purification system according to claim 7, which is characterized in that
The water purification system further includes pressure switch (11) and postposition filter core of the setting in the second one-way valve (8) downstream
(12)。
10. water purification system according to claim 1, which is characterized in that
The water purification system further includes front filter element (10) of the setting in the water inlet switch (1) upstream.
11. water purification system according to claim 8, which is characterized in that
The water purification system further includes waste water branch, and the filter device (3) further includes wastewater outlet, the waste water branch and institute
State the wastewater outlet connection of filter device (3)；
The water purification system further includes draining branch, and the first end of the draining branch is connected to the detection device (9) and institute
It states between the second control valve (7), the draining branch road has been arranged in series third control valve (13).
12. water purification system according to claim 11, which is characterized in that
The waste water branch road is provided with proportioning valve (14).
13. water purification system according to claim 1, which is characterized in that
The filter device (3) is reverse-osmosis filtering device or nanofiltration filter device.
14. water purification system according to claim 1, which is characterized in that
It is additionally provided in the water purification branch booster pump (2), the booster pump (2) is located at the water inlet switch (1) and the mistake
Filter between device (3), the second end for rinsing return line be connected to the water inlet switch (1) and the booster pump (2) it
Between.
15. a kind of control method, for water purification system described in any one of claims 1 to 14, which is characterized in that described net
Water system further includes the second control valve (7) being arranged in the water purification branch, and second control valve (7) is located at the filtering
Between device (3) and the first end for rinsing return line；The water purification system further includes being arranged in the water purification branch
And the detection device (9) between the filter device (3) and second control valve (7), the detection device (9) are used for
Detect TDS concentration；
The control method includes:
Step S10: obtaining the practical TDS value x of pure water, obtains default TDS value y；
Step S20: according to practical TDS value x, default TDS value y, the water purification system work is controlled.
16. control method according to claim 15, which is characterized in that the water purification system further includes waste water branch, institute
Stating filter device (3) further includes wastewater outlet, and the waste water branch is connected to the wastewater outlet of the filter device (3)；It is described
Water purification system further includes draining branch, and the first end of the draining branch is connected to the detection device (9) and second control
Between valve (7) processed, draining branch road has been arranged in series third control valve (13), the step S20 the following steps are included:
Step S21: as x >=y, second control valve (7) is closed, and the third control valve (13) is opened, the filtering dress
The pure water set in (3) drains into outflow in the waste water branch by the draining branch, while the pure water in water storage device (4) supplies
User uses；
Step S22: as x < y, second control valve (7) is opened, and the third control valve (13) is closed, the filtering dress
Set pure water in (3) for users to use；
Step S23: after user completes water intaking, the booster pump (2) works on, until pure water fills up water storage device (4), institute
The second control valve (7) closing is stated, the third control valve (13) is closed, and the first control valve (5) is opened, the water storage device (4)
In pure water flow into filter device (3) the raw water end, raw water is squeezed out, is discharged by waste water branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593558.XA CN109626616A (en) | 2018-12-25 | 2018-12-25 | Water purification system and its control method |
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| CN201811593558.XA CN109626616A (en) | 2018-12-25 | 2018-12-25 | Water purification system and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110357211A (en) * | 2019-06-25 | 2019-10-22 | 肖卫方 | A kind of water purifier reduces the device of pure water TDS after shutting down |
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| CN106277206A (en) * | 2016-09-23 | 2017-01-04 | 珠海格力电器股份有限公司 | A kind of purifying drinking appliance |
| CN108793326A (en) * | 2017-04-27 | 2018-11-13 | 佛山市顺德区美的饮水机制造有限公司 | Water cleaning systems and its control method |
| CN206985787U (en) * | 2017-07-12 | 2018-02-09 | 宁波福特恩净水设备有限公司 | A kind of water purifier |
| CN207259213U (en) * | 2017-09-28 | 2018-04-20 | 佛山市顺德区美的饮水机制造有限公司 | Water cleaning systems |
| CN207435106U (en) * | 2017-09-28 | 2018-06-01 | 佛山市顺德区美的饮水机制造有限公司 | Water cleaning systems |
| CN207551968U (en) * | 2017-12-01 | 2018-06-29 | 佛山市顺德区美的饮水机制造有限公司 | Water cleaning systems |
| CN108975540A (en) * | 2018-08-24 | 2018-12-11 | 珠海格力电器股份有限公司 | Water purification system and water purifier |
| CN209468218U (en) * | 2018-12-25 | 2019-10-08 | 珠海格力电器股份有限公司 | Water purification system |
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| CN110357211A (en) * | 2019-06-25 | 2019-10-22 | 肖卫方 | A kind of water purifier reduces the device of pure water TDS after shutting down |
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Application publication date: 20190416 |