CN106673281A - Water treatment system - Google Patents
Water treatment system Download PDFInfo
- Publication number
- CN106673281A CN106673281A CN201611229657.0A CN201611229657A CN106673281A CN 106673281 A CN106673281 A CN 106673281A CN 201611229657 A CN201611229657 A CN 201611229657A CN 106673281 A CN106673281 A CN 106673281A
- Authority
- CN
- China
- Prior art keywords
- pure water
- water
- filter element
- treatment system
- electromagnetic valve
- Prior art date
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 239
- 239000002351 wastewater Substances 0.000 claims description 22
- 230000001954 sterilising effect Effects 0.000 claims description 14
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 238000001223 reverse osmosis Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 4
- 238000011045 prefiltration Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 239000008213 purified water Substances 0.000 abstract 8
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 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
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- 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)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a water treatment system. The water treatment system comprises a water inlet part and a purified water part, wherein a purified water storage device and a suction pump are arranged at the purified water part. The water treatment system is characterized in that a solenoid valve is further arranged at the purified water part and behind the purified water storage device and the suction pump in the purified water discharge direction. According to the water treatment system, the solenoid valve is arranged behind the purified water storage device and the suction pump, so that work of the suction pump cannot affect normal action of the solenoid valve, and a user uses the purified water conveniently.
Description
Technical field
The present invention relates to water treatment system technical field, and in particular to a kind of improved water treatment system.
Background technology
Existing water treatment system, including water inlet portion and pure water part, press pure water water outlet direction on the pure water part, first
After be provided with pure water storage device electromagnetic valve and suction pump, this sequence of positions is arranged, because suction pump is placed on normally closed solenoid valve
Outlet behind, then under the suction of suction pump, easily there is the situation that electromagnetic valve cannot normally be opened and closed, affect user to make
With.
The content of the invention
It is an object of the invention to overcome the shortcomings of that above-mentioned prior art is present, and one kind is provided and be can ensure that on pure water part
The pump work that draws water do not interfere with the water treatment system of electromagnetic valve normal work.
The object of the present invention is achieved like this：
A kind of water treatment system, including water inlet portion and pure water part, be provided with the pure water part pure water storage device and
Suction pump, is characterized in that, on the pure water part electromagnetic valve is additionally provided with, and by pure water water outlet direction, electromagnetic valve is arranged on pure water
Behind storage device and suction pump；Such water treatment system, by the way that electromagnetic valve is arranged on into pure water storage device and suction pump
Behind, with the regular event that the pump work that guarantees to draw water does not interfere with electromagnetic valve, it is user-friendly to pure water.
The present invention can also be solved using following technical measures：
Further, the pure water storage device is the water bag for storing pure water, and by pure water water outlet direction, water bag is arranged on to be taken out
Before water pump, so, suction pump is conducive to extract the pure water in water bag, and, water bag is readily replaceable, or even facilitates user to fill
The water bag of pure water takes out, outgoing to carry and use.
Further, water level switch is additionally provided with the pure water storage device, to monitor the pure water of pure water storage device
Water level, prevents interference.
Further, UV sterilizing units are additionally provided with the pure water part between the pure water storage device and suction pump,
UV sterilizing units can carry out sterilizing to the pure water for flowing through.
Further, the electromagnetic valve is normal valve type electromagnetic valve, and is often also set up on the pure water part after valve type electromagnetic valve
Having heaters, user can select to heat pure water by heater；It is additionally, since suction pump more to lean on compared to UV sterilizing units
Nearly heater, when temperature can be facilitated to adjust, the water yield feeds in time, is easy to temperature adjustment.
Further, be additionally provided with effusion meter between the electromagnetic valve and suction pump, effusion meter can real-time monitoring pure water go out
Discharge.
Further, the pure water part includes pure water leading portion, the first filter element and pure water back segment, and first filter element is arranged
Between pure water leading portion and pure water back segment, pure water storage device, UV sterilizing units, suction pump, effusion meter, electromagnetic valve and heater
It is arranged on pure water back segment, pure water leading portion is provided with the check valve for preventing reverse backflow；Here pure water back segment is due to pure water
The filter elements of Jing first carry out postpositive disposal, so, the pure water Jing after postpositive disposal can be directly stored in pure water storage device.
Further, wastewater fraction can also be included, the water inlet portion is divided into two-way output by reverse osmosiss filter element,
Export all the way to the pure water leading portion of pure water part, another road is exported to wastewater fraction, and waste water ratio electromagnetism is provided with wastewater fraction
Valve, the pure water back segment before the pure water storage device entrance is also connected to the waste water after waste water ratio electromagnetic valve outlet by relief valve
On part, can be discharged into after wastewater fraction by relief valve when meeting overvoltage so as to pure water back segment, then be discharged.
Further, first filter element includes the outlet of water inlet, filtering outlet, pure water entrance and pure water, the first filter element
Water inlet portion is serially connected in by water inlet and filtering outlet, pure water entrance connection pure water leading portion, pure water outlet connects pure water back segment,
So that the first filter element is both processed as the prefilter of water inlet portion, and as the rearmounted filtration treatment of pure water part.
Further, successively it is provided with by water inlet direction in the water inlet portion between first filter element and reverse osmosiss filter element
Entering water electromagnetic valve, booster pump and water quality detection TDS, the water inlet portion before the water inlet of the first filter element is additionally provided with tee ball valve,
First filter element is Carbon rod filter element or paper folding carbon rod composite filter element.
The present invention has the advantages that：
（1）Such water treatment system, by the way that electromagnetic valve is arranged on behind pure water storage device and suction pump, to guarantee to draw water
Pump work does not interfere with the regular event of electromagnetic valve, is user-friendly to pure water.
（2）Further, suction pump can extract the pure water in water bag, so that water bag is readily replaceable, or even user is facilitated to fill
The water bag of pure water takes out, outgoing to carry and use；If setting up water level switch on pure water storage device, pure water storage dress can be monitored
The pure water water level put, prevents interference.
（3）Separately, UV sterilizing units, UV sterilization dresses are provided with the pure water part between pure water storage device and suction pump
Put can be to flowing through pure water carry out sterilizing, to improve the health that pure water is drunk, and, by after normal valve type electromagnetic valve
Heater is set on pure water part, and user can select to heat pure water by heater；More have plenty of, because suction pump is compared
In UV sterilizing units closer to heater, when temperature can be facilitated to adjust, the water yield feeds in time, is easy to temperature adjustment.
（4）Finally, due to the first filter element is Carbon rod filter element or paper folding carbon rod composite filter element, it includes water inlet, filters out
The outlet of mouth, pure water entrance and pure water, so that the first filter element is both processed as the prefilter of water inlet portion, and as pure water part
Rearmounted filtration treatment.
Description of the drawings
Fig. 1 is the principle schematic of water treatment system of the present invention.
Specific embodiment
Refer to shown in Fig. 1, a kind of water treatment system, including water inlet portion 1, pure water part 2 and wastewater fraction 3, it is described
Water inlet portion 1 is divided into two-way output by reverse osmosiss filter element 12, exports all the way to pure water part 2, and another road is exported to waste portion
Divide 3, waste water ratio electromagnetic valve 31 is provided with wastewater fraction 3, pure water storage device 4 is provided with the pure water part 2 and is drawn water
Pump 5, is characterized in that, on the pure water part 2 electromagnetic valve 6 is additionally provided with, and by pure water water outlet direction, electromagnetic valve 6 is arranged on pure water
Behind storage device 4 and suction pump 5.
Used as more specifically scheme, the pure water storage device 4 is the water bag for storing pure water, by pure water water side
To water bag is arranged on before suction pump 5, and monitoring water level conditions are additionally provided with pure water storage device 4, the water level switch of interference is prevented
7。
UV sterilizing units 8, electromagnetic valve are additionally provided with pure water part 2 between the pure water storage device 4 and suction pump 5
6 is normal valve type electromagnetic valve, and is often additionally provided with heater 9 on the pure water part 2 after valve type electromagnetic valve, wherein, the electromagnetic valve 6
Effusion meter 10 is additionally provided between suction pump 5.
Used as more specifically scheme, the pure water part 2 includes pure water leading portion 21, the first filter element 22 and pure water back segment 23,
First filter element 22 is arranged between pure water leading portion 21 and pure water back segment 23, pure water storage device 4, UV sterilizing units 8, is drawn water
Pump 5, effusion meter 10, electromagnetic valve 6 and heater 9 are arranged on pure water back segment 23, and pure water leading portion 21 is provided with check valve 11.
Shown in figure, water inlet portion 1 is divided into two-way output by reverse osmosiss filter element 12, exports all the way to pure water part 2
Pure water leading portion 21, another road is exported to wastewater fraction 3, and waste water ratio electromagnetic valve 31, the pure water storage are provided with wastewater fraction 3
Pure water back segment 23 before the entrance of device 4 is also connected on the wastewater fraction 3 after waste water ratio electromagnetic valve 31 is exported by relief valve 13.
In the present embodiment, first filter element 22 includes water inlet 221, filtering outlet 222, pure water entrance 223 and pure water
Outlet 224, the first filter element 22 is serially connected in water inlet portion 1 by water inlet 221 and filtering outlet 222, and pure water entrance 223 connects pure
Water leading portion 21, pure water outlet 224 connects pure water back segment 23, so that at the first filter element 22 prefilter both as water inlet portion 1
Reason, and as the rearmounted filtration treatment of pure water part 2.
Wherein, successively arrange by water inlet direction in the water inlet portion 1 between first filter element 22 and reverse osmosiss filter element 12
There are entering water electromagnetic valve 13, booster pump 14 and water quality detection TDS15, the water inlet portion 1 before the water inlet 221 of the first filter element 22 also sets
Tee ball valve 16 is equipped with, first filter element 22 is Carbon rod filter element or paper folding carbon rod composite filter element.
Operation principle：
Pure water system processed：Tap water enters water purifier by tee ball valve 16, the Jing after the pre-treatment filter element of the first filter element 22
Reverse osmosiss filter element 12 is entered after booster pump pressurization, condensed water is discharged by waste water ratio electromagnetic valve 31 from concentrated water spout, and pure water enters pure
The pure water leading portion 21 of water section 2, then after the post processing Carbon rod filter element of the first filter element 22, stream enters water bag, when pure in water bag
When water water level switch 7 recognizes high water level, stop pure water processed, during low water level, start pure water processed.
Water intaking：When room temperature pure water is taken, suction pump 5 starts, and normally closed solenoid valve 6 is opened, pure due to the negative pressure of suction pump 5
Water is flowed out after UV sterilizing units 8 sterilize, then by portions such as suction pump 5, effusion meter 10 and normally closed solenoid valves 6 from water bag
Part, flows out finally by heater 9, and now heater 9 can start can not also start.
Claims (10)
1. a kind of water treatment system, including water inlet portion（1）With pure water part（2）, the pure water part（2）On be provided with pure water
Storage device（4）And suction pump（5）, it is characterized in that, the pure water part（2）On be additionally provided with electromagnetic valve（6）, by pure water water outlet
Direction, electromagnetic valve（6）It is arranged on pure water storage device（4）And suction pump（5）Behind.
2. water treatment system according to claim 1, is characterized in that, the pure water storage device（4）It is for storing pure water
Water bag, by pure water water outlet direction, water bag is arranged on suction pump（5）Before.
3. water treatment system according to claim 2, is characterized in that, the pure water storage device（4）On be additionally provided with water level
Switch（7）.
4. according to the arbitrary water treatment system of claim 1-3, it is characterized in that, the pure water storage device（4）With suction pump
（5）Between pure water part（2）On be additionally provided with UV sterilizing units（8）.
5. water treatment system according to claim 4, is characterized in that, the electromagnetic valve（6）For normal valve type electromagnetic valve, and often valve
Pure water part after formula electromagnetic valve（2）On be additionally provided with heater（9）.
6. water treatment system according to claim 5, is characterized in that, the electromagnetic valve（6）With suction pump（5）Between also set up
There is effusion meter（10）.
7. water treatment system according to claim 6, is characterized in that, the pure water part（2）Including pure water leading portion（21）,
One filter element（22）With pure water back segment（23）, first filter element（22）It is arranged on pure water leading portion（21）With pure water back segment（23）It
Between, pure water storage device（4）, UV sterilizing units（8）, suction pump（5）, effusion meter（10）, electromagnetic valve（6）And heater（9）
It is arranged on pure water back segment（23）On, pure water leading portion（21）It is provided with check valve（11）.
8. water treatment system according to claim 7, is characterized in that, also include wastewater fraction（3）, the water inlet portion
（1）By reverse osmosiss filter element（12）It is divided into two-way output, exports all the way to pure water part（2）Pure water leading portion（21）, Ling Yilu
Export to wastewater fraction（3）, wastewater fraction（3）On be provided with waste water ratio electromagnetic valve（31）, the pure water storage device（4）Entrance
Front pure water back segment（23）Also pass through relief valve（13）It is connected to waste water ratio electromagnetic valve（31）Wastewater fraction after outlet（3）On.
9. water treatment system according to claim 8, is characterized in that, first filter element（22）Including water inlet（221）, mistake
Leach mouth（222）, pure water entrance（223）With pure water outlet（224）, the first filter element（22）By water inlet（221）With filter out
Mouthful（222）It is serially connected in water inlet portion（1）, pure water entrance（223）Connection pure water leading portion（21）, pure water outlet（224）Connection pure water
Back segment（23）, so that the first filter element（22）Both as water inlet portion（1）Prefilter process, and as pure water part（2）'s
Rearmounted filtration treatment.
10. water treatment system according to claim 9, is characterized in that, first filter element（22）With reverse osmosiss filter element（12）
Between water inlet portion（1）On be successively provided with entering water electromagnetic valve by water inlet direction（13）, booster pump（14）With water quality detection TDS
（15）, the first filter element（22）Water inlet（221）Front water inlet portion（1）It is additionally provided with tee ball valve（16）, first filter
Core（22）For Carbon rod filter element or paper folding carbon rod composite filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229657.0A CN106673281B (en) | 2016-12-27 | 2016-12-27 | water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229657.0A CN106673281B (en) | 2016-12-27 | 2016-12-27 | water treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106673281A true CN106673281A (en) | 2017-05-17 |
| CN106673281B CN106673281B (en) | 2023-09-05 |
Family
ID=58873184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611229657.0A Active CN106673281B (en) | 2016-12-27 | 2016-12-27 | water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106673281B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109422303A (en) * | 2017-08-22 | 2019-03-05 | 芜湖美的厨卫电器制造有限公司 | The method for controlling water level and water purifier of water purifier water bag |
| CN109422300A (en) * | 2017-08-22 | 2019-03-05 | 芜湖美的厨卫电器制造有限公司 | The method for controlling water level and water purifier of water purifier water bag |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3995704B1 (en) * | 2006-12-19 | 2007-10-24 | 株式会社神鋼環境ソリューション | Water treatment system for drinking water production and operation method thereof |
| CN201382540Y (en) * | 2009-04-10 | 2010-01-13 | 襄樊景泰隆电子科技有限公司 | Instantaneous heating and purifying water boiler with water storage tank |
| CN103570148A (en) * | 2012-08-02 | 2014-02-12 | 珠海格力电器股份有限公司 | Water purifier |
| CN105692997A (en) * | 2016-03-02 | 2016-06-22 | 姜善学 | Reverse osmosis membrane water purifier |
| CN106045173A (en) * | 2016-07-22 | 2016-10-26 | 佛山市云米电器科技有限公司 | Water purification system with purified water storage device |
| CN206580681U (en) * | 2016-12-27 | 2017-10-24 | 佛山市云米电器科技有限公司 | Water treatment system |
-
2016
- 2016-12-27 CN CN201611229657.0A patent/CN106673281B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3995704B1 (en) * | 2006-12-19 | 2007-10-24 | 株式会社神鋼環境ソリューション | Water treatment system for drinking water production and operation method thereof |
| CN201382540Y (en) * | 2009-04-10 | 2010-01-13 | 襄樊景泰隆电子科技有限公司 | Instantaneous heating and purifying water boiler with water storage tank |
| CN103570148A (en) * | 2012-08-02 | 2014-02-12 | 珠海格力电器股份有限公司 | Water purifier |
| CN105692997A (en) * | 2016-03-02 | 2016-06-22 | 姜善学 | Reverse osmosis membrane water purifier |
| CN106045173A (en) * | 2016-07-22 | 2016-10-26 | 佛山市云米电器科技有限公司 | Water purification system with purified water storage device |
| CN206580681U (en) * | 2016-12-27 | 2017-10-24 | 佛山市云米电器科技有限公司 | Water treatment system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109422303A (en) * | 2017-08-22 | 2019-03-05 | 芜湖美的厨卫电器制造有限公司 | The method for controlling water level and water purifier of water purifier water bag |
| CN109422300A (en) * | 2017-08-22 | 2019-03-05 | 芜湖美的厨卫电器制造有限公司 | The method for controlling water level and water purifier of water purifier water bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106673281B (en) | 2023-09-05 |
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