CN105585075B - Water purification system and flushing method thereof - Google Patents
Water purification system and flushing method thereof Download PDFInfo
- Publication number
- CN105585075B CN105585075B CN201510963917.6A CN201510963917A CN105585075B CN 105585075 B CN105585075 B CN 105585075B CN 201510963917 A CN201510963917 A CN 201510963917A CN 105585075 B CN105585075 B CN 105585075B
- Authority
- CN
- China
- Prior art keywords
- water
- purification system
- water purification
- pump
- pressure pot
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 244
- 238000000746 purification Methods 0.000 title claims abstract description 62
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000010926 purge Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000001728 nano-filtration Methods 0.000 claims description 3
- 230000037452 priming Effects 0.000 claims description 3
- 238000001223 reverse osmosis Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007774 longterm Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003809 water extraction 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention provides a water purification system and a flushing method thereof. The water purification system comprises a water purification branch, wherein a water inlet switch, a first water pump, a filtering device and a pressure barrel are sequentially arranged on the water purification branch in series; the water storage device is connected in series between the water inlet switch and the first water pump. According to the invention, the flushing return pipeline and the water storage device are arranged, so that water in the pressure barrel and the water storage device can be pressurized by the first water pump to flush the filter element during flushing, the high-flow high-pressure flushing and filtering device can be ensured, and the influence of water inlet pressure and flow can not be caused, thus the flushing effect is ensured, the service life of the filtering device is prolonged, and the reliability is improved. In addition, the water which is required to be discharged from the pressure barrel due to long-term nonuse can be recycled, and water resources are saved.
Description
Technical field
The present invention relates to water purification system fields, in particular to a kind of water purification system and its purging method.
Background technique
In the prior art, general water purifier all uses tap water to rinse RO membrane filter, when tap water pressure or flow are inadequate
When, flushing effect is poor, will affect RO membrane lifetime over time；In addition, working as water purifier long-time when not in use, inside pressure pot
Water generally can all bleed off, prevent breed bacteria effect human health, and rinse when need to individually use water, both will cause water
The waste of resource.
Summary of the invention
The present invention is intended to provide a kind of more reliable water purification system and its purging method.
The present invention provides 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
Pass, the first water pump, filter device and pressure pot, water purification system further include rinsing return line and water storage device, rinse return pipe
The first end on road is connected to pressure pot, and the second end for rinsing return line is connected between water inlet switch and the first water pump；Water storage
Device is connected between water inlet switch and the first water pump.
Further, water purification system further includes the second water pump, and the second water pump is connected between water inlet switch and the first water pump.
Further, the first water pump is self priming pump, and the second water pump is booster pump.
Further, it rinses on return line and is provided with flush switch.
Further, water purification system further includes the pressure switch and high-voltage switch gear with pressure pot cooperation.
Further, water purification system further includes being connected in water purification branch and being located at the front filter element of water inlet switch upstream.
Further, water purification system further includes the postposition filter core for being connected in water purification branch and being located at pressure pot downstream.
Further, filter device includes concentrated water outlet, and water purification system includes exporting the drainage switch being connected with concentrated water.
Further, filter device is reverse-osmosis filtering device or nanofiltration filter device.
The present invention also provides a kind of purging method of water purification system above-mentioned, this method includes：Water inlet switch is closed, and
Open the first water pump, water in pressure pot made to flow back into the first water pump by rinsing return line, and with the water in water storage device
Filter device is rinsed jointly.
Further, before rinsing, whether water is full for detection pressure pot, when pressure pot is that water is less than, opens water purification branch
Road water is until pressure pot water is full.
Water purification system according to the present invention and its purging method rinse return line by setting, and make to rinse return pipe
The first end on road is connected to pressure pot, and the second end for rinsing return line is connected between water inlet switch and the first water pump, and
It connects between water inlet switch and the first water pump water storage device, it, can be by the first water pump by pressure pot and water storage when so that rinsing
Water pressurization in device carrys out filter cartridge flushing, can guarantee big-flow high-pressure washing and filtering device, not will receive intake pressure and flow
Influence extend the filter device service life to guarantee flushing effect, improve reliability.In addition, can will be needed because not using for a long time
It discharges the water inside pressure pot to be reused, saves water resource.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the schematic illustration of water purification system according to the present invention.
Description of symbols：
1, low tension switch；2, front filter element；3, water inlet switch；4, the first water pump；5, filter device；6, drainage switch；7,
Non-return valve；8, pressure pot；9, high-voltage switch gear；10, pressure switch；11, postposition filter core；12, flush switch；13, water storage device；
14, the second water pump.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, water purification system according to the present invention, including water purification branch, it is sequentially connected in series and is provided in water purification branch
Water inlet switch 3, the first water pump 4, filter device 5 and pressure pot 8, water purification system further include rinsing return line and water storage device
13, the first end for rinsing return line is connected to pressure pot 8, and the second end for rinsing return line is connected to water inlet switch 3 and
Between one water pump 4；Water storage device is connected between water inlet switch 3 and the first water pump 4.
The present invention rinses return line by setting, and is connected to the first end for rinsing return line with pressure pot 8, rinses
The second end of return line is connected between water inlet switch 3 and the first water pump 4, and is gone here and there between water inlet switch 3 and the first water pump 4
Federal Reserve water installations 13 when so that rinsing, can be rushed the water pressurization in pressure pot 8 and water storage device 13 by the first water pump 4
The filter core for washing filter device 5 can guarantee big-flow high-pressure washing and filtering device 5, not will receive the influence of intake pressure and flow,
To guarantee flushing effect, extend 5 service life of filter device, improves reliability.In addition, can will need to be discharged because not using for a long time
Water inside pressure pot is reused, and water resource is saved.
Preferably, water purification system further includes the second water pump 14, and the second water pump 14 is connected on water inlet switch 3 and the first water pump 4
Between.First water pump 4 and the autonomous working in water processed and flushing respectively of the second water pump 14, i.e. when the first water pump 4 works, to filtering
Device 5 rinses, when the second water pump 14 works, water purification system water.It is highly preferred that the first water pump 4 be self priming pump, can effectively by
Water extraction in water storage device 13, the second water pump 14 are booster pump, guarantee that water pressure processed is stablized.As needed, return pipe is rinsed
The second end on road can connect in the upstream or downstream of the second water pump 14.
As shown in connection with fig. 1, it rinses on return line and is provided with flush switch 12, control is facilitated to rinse return line.Water purification
System further includes that the pressure switch 10 cooperated with pressure pot 8 and high-voltage switch gear 9, the series connection of pressure switch 10 and high-voltage switch gear 9 make
With, water purification in pressure pot 8 can be enable sufficiently to drain, prevent breed bacterium.
As shown in connection with fig. 1, water purification system further includes being connected in water purification branch and being located at the preposition filter of 3 upstream of water inlet switch
Core 2.Water purification system further includes the postposition filter core 11 for being connected in water purification branch and being located at 8 downstream of pressure pot.Filter device 5 includes
Concentrated water outlet, water purification system include exporting the drainage switch 6 being connected with concentrated water.Front filter element 2, postposition filter core 11 can be by one
Or several filter core compositions；Each component can be selected according to performance requirement, as water inlet switch 3, flush switch 12, drainage switch 6 can
Think solenoid valve etc..As needed, can also front filter element 2 upstream be arranged low tension switch 1.Filter device 5 is reverse osmosis
Saturating filter device or nanofiltration filter device.
Illustrate the working principle of water purification system of the invention in conjunction with Fig. 1, the operating mode of water purification system mainly includes system
Aqueous mode and rinse mode, wherein rinse mode priority is higher than normal aqueous mode processed.Its rate-determining steps is as follows：
Aqueous mode processed：
For the first time when water processed, complete machine powering is passed through tap water from raw water mouth A, if intake pressure is too low, low tension switch 1 is issued
Low-voltage signal is to controller, and controller controls water inlet switch 3, the second water pump 14 is closed, and drainage switch 6 is half-open, at this time water not processed
Into standby mode；If intake pressure is enough closed low tension switch 1, controller control water inlet switch 3, the second water pump 14 are beaten
It opens, drainage switch 6 is half-open, and complete machine enters normal aqueous mode processed.
It is normal to fetch water if opening tap at water outlet B at this time；Water intaking finishes, and closes water outlet tap, complete machine
Continue water processed and store into pressure pot 8, until reaching the cut off value of high-voltage switch gear 9 on pressure pot 8, shows that 8 water of pressure pot is full, it is high
It compresses switch and 9 issues a signal to controller, controller controls water inlet switch 3, the second water pump 14 is closed, and drainage switch 6 is half-open, complete machine
Into standby mode.After water is full, if opening the water intaking of water outlet tap, the water of 8 the inside of pressure pot passes through postposition filter core 11
Outflow, until reaching 10 closing value of pressure switch, controller controls water inlet switch 3, the second water pump 4 is opened, drainage switch 6 half
It opens, complete machine reenters aqueous mode processed.
Rinse mode：
When controller receives flush signal, such as rinses other inferior signals by flush knob or every water 10L processed,
Controller detects pressure pot 8 first, and whether water is full, i.e., whether high pressure if the non-water of pressure pot 8 is full is transferred to water processed to high-voltage switch gear 9
Mode is until 8 water of pressure pot is full；If 8 water of pressure pot is full, enter rinse mode, at this time controller control water inlet switch 3 and the
Two water pumps 14 are closed, flush switch 12 and the first water pump 4 opening, 6 standard-sized sheet of drainage switch, the water of 8 the inside of pressure pot are rinsed back
Flow tube road is back to water storage device 13, and is extracted out together with the water of 13 the inside of water storage device by the first water pump 4, big-flow high-pressure punching
Wash filter device 5.
After the completion of flushing, the water of 8 the inside of pressure pot will continue to flow into water storage device 13, and the water to 8 the inside of pressure pot is drained
When reaching 10 closing value of pressure switch, aqueous mode processed is initially entered.The flush switch 12 of controller control at this time, the first water pump 4 close
It closes, water inlet switch 3, the second water pump 14 are opened, and drainage switch 6 is half-open, start water processed, until reaching 9 cut off value of high-voltage switch gear, table
Bright 8 water of pressure pot is full, and subsequent controller closes water inlet switch 3, the second water pump 14 to stop water processed.
In conjunction with aforesaid operating principle, the present invention also provides a kind of purging method of water purification system above-mentioned, this method packets
It includes：Water inlet switch 3 is closed, and opens the first water pump 4, the water in pressure pot 8 is made to flow back into the first water by rinsing return line
Pump 4, and rinsed with the common filter device 5 of water in water storage device 13.Preferably, before rinsing, detection pressure pot 8 whether water
It is full, when pressure pot 8 is that water is less than, water purification branch water is opened until 8 water of pressure pot is full, to guarantee reliable rinse.
It can be seen from the above description that the above embodiments of the present invention realize following technical effect：
1, it can guarantee big-flow high-pressure washing and filtering device, not will receive the influence of intake pressure and flow, to guarantee
Flushing effect is good, can extend filter device service life.
2, due to using the water inside water storage device and pressure pot to carry out filter cartridge flushing, when flushing, will not be used alone originally
Water, and the water that need to be discharged inside pressure pot because not using for a long time can be reused, therefore water resource can be saved.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
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 (3), first
Water pump (4), filter device (5) and pressure pot (8), which is characterized in that
The water purification system further includes rinsing return line and water storage device (13), the first end for rinsing return line and institute
Pressure pot (8) connection is stated, the second end for rinsing return line is connected to the water inlet switch (3) and first water pump
(4) between；
The water storage device is connected between the water inlet switch (3) and first water pump (4).
2. water purification system according to claim 1, which is characterized in that
The water purification system further includes the second water pump (14), and second water pump (14) is connected on the water inlet switch (3) and institute
It states between the first water pump (4).
3. water purification system according to claim 2, which is characterized in that
First water pump (4) is self priming pump, and second water pump (14) is booster pump.
4. water purification system according to claim 1, which is characterized in that
Flush switch (12) are provided on the flushing return line.
5. water purification system according to claim 1, which is characterized in that
The water purification system further includes the pressure switch (10) and high-voltage switch gear (9) with the pressure pot (8) cooperation.
6. water purification system according to claim 1, which is characterized in that
The water purification system further includes being connected in the water purification branch and being located at the front filter element of the water inlet switch (3) upstream
(2)。
7. water purification system according to claim 1, which is characterized in that
The water purification system further includes the postposition filter core for being connected in the water purification branch and being located at the pressure pot (8) downstream
(11)。
8. water purification system according to claim 1, which is characterized in that
The filter device (5) includes concentrated water outlet, and the water purification system includes that the draining being connected with concentrated water outlet is opened
It closes (6).
9. water purification system according to claim 1, which is characterized in that
The filter device (5) is reverse-osmosis filtering device (5) or nanofiltration filter device (5).
10. a kind of purging method of water purification system described in any one of claims 1 to 9, which is characterized in that the method packet
It includes：
It closes water inlet switch (3), and opens the first water pump (4), return the water in the pressure pot (8) by rinsing return line
It flows to the first water pump (4), and the filter device (5) is rinsed jointly with the water in the water storage device (13).
11. purging method according to claim 10, which is characterized in that before rinsing, detecting the pressure pot (8) is
No water is full, when the pressure pot (8) is that water is less than, opens the water purification branch water until the pressure pot (8) water is full.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963917.6A CN105585075B (en) | 2015-12-17 | 2015-12-17 | Water purification system and flushing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963917.6A CN105585075B (en) | 2015-12-17 | 2015-12-17 | Water purification system and flushing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105585075A CN105585075A (en) | 2016-05-18 |
| CN105585075B true CN105585075B (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510963917.6A Expired - Fee Related CN105585075B (en) | 2015-12-17 | 2015-12-17 | Water purification system and flushing method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186411A (en) * | 2016-09-07 | 2016-12-07 | 曼瑞德集团有限公司 | A kind of purifier |
| CN106693709A (en) * | 2017-02-10 | 2017-05-24 | 珠海格力电器股份有限公司 | Water purification system, control method thereof and water purifier |
| CN113311883B (en) * | 2021-05-24 | 2024-04-05 | 艾欧史密斯（中国）环境电器有限公司 | Pressure barrel failure detection method and device and central water treatment equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203360148U (en) * | 2013-07-05 | 2013-12-25 | 李志红 | RO (reverse osmosis) water filter structure rinsing RO membrane filter with pure water |
| CN104030475A (en) * | 2014-07-08 | 2014-09-10 | 孙丰忠 | Water purification system with concentrated water making and backwashing functions and water purification method |
| CN104761076A (en) * | 2015-04-14 | 2015-07-08 | 江西书源科技有限公司 | Reverse osmosis water purification machine-intelligent pure water forward/reverse-alternate flushing water-saving system and method |
| CN204569583U (en) * | 2015-04-14 | 2015-08-19 | 江西书源科技有限公司 | A kind of intelligent pure water is just rinsing and temperature steady flow water-saving type reverse osmosis water purifier |
| CN204727676U (en) * | 2015-03-24 | 2015-10-28 | 杨正涛 | Water-saving cuticula reverse osmosis water purifier |
| CN205419863U (en) * | 2015-12-17 | 2016-08-03 | 珠海格力电器股份有限公司 | water purification system |
-
2015
- 2015-12-17 CN CN201510963917.6A patent/CN105585075B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203360148U (en) * | 2013-07-05 | 2013-12-25 | 李志红 | RO (reverse osmosis) water filter structure rinsing RO membrane filter with pure water |
| CN104030475A (en) * | 2014-07-08 | 2014-09-10 | 孙丰忠 | Water purification system with concentrated water making and backwashing functions and water purification method |
| CN204727676U (en) * | 2015-03-24 | 2015-10-28 | 杨正涛 | Water-saving cuticula reverse osmosis water purifier |
| CN104761076A (en) * | 2015-04-14 | 2015-07-08 | 江西书源科技有限公司 | Reverse osmosis water purification machine-intelligent pure water forward/reverse-alternate flushing water-saving system and method |
| CN204569583U (en) * | 2015-04-14 | 2015-08-19 | 江西书源科技有限公司 | A kind of intelligent pure water is just rinsing and temperature steady flow water-saving type reverse osmosis water purifier |
| CN205419863U (en) * | 2015-12-17 | 2016-08-03 | 珠海格力电器股份有限公司 | water purification system |
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| CN105585075A (en) | 2016-05-18 |
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