CN214299540U - Pure water backflow water purification system - Google Patents
Pure water backflow water purification system Download PDFInfo
- Publication number
- CN214299540U CN214299540U CN202023147750.1U CN202023147750U CN214299540U CN 214299540 U CN214299540 U CN 214299540U CN 202023147750 U CN202023147750 U CN 202023147750U CN 214299540 U CN214299540 U CN 214299540U
- Authority
- CN
- China
- Prior art keywords
- water
- pipeline
- pure water
- pure
- water inlet
- 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.)
- Active
Links
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a pure water backward flow water purification system, include: the water inlet pipe way, the pure water pipeline, the pure water backward flow pipeline, the waste water pipeline, composite filter, the RO membrane filter core, the water inlet pipe way is connected with composite filter's water inlet, composite filter's delivery port and the water inlet of RO membrane filter core are connected, the delivery port of RO membrane filter core and the water inlet of pure water pipeline are connected, the delivery port of pure water pipeline is equipped with tap, the water inlet of pure water backward flow pipeline and the pure water delivery port intercommunication of RO membrane filter core, the delivery port of pure water backward flow pipeline and the water inlet intercommunication of RO membrane filter core, be equipped with the backward flow valve on the pure water backward flow pipeline, the water inlet of waste water pipeline and the waste water delivery port intercommunication of RO membrane filter core, be equipped with the waste water valve on the waste water pipeline. When water is not taken for a long time, the reflux valve is opened, and the waste water valve is closed simultaneously, so that the RO membrane filter core can be soaked by pure water, and the waste water after the RO membrane filter core is washed is finally discharged from the waste water pipeline, thereby ensuring the water quality of the water taken by the faucet.
Description
Technical Field
The utility model relates to a filtration system technical field, in particular to pure water backward flow water purification system.
Background
With the increasing deterioration of water resource environment, more and more water purifiers appear on the market. The most core drinking water treatment technology is membrane filtration technology, specifically, reverse osmosis membrane filtration is adopted, the aperture of a filtration pore is 0.0001 mu m, and hazardous substances in water can be effectively removed. But after the membrane is used, raw water, waste water and pure water are in same membrane shell container, and high concentration raw water can permeate RO membrane pure water after long-time in, lead to the TDS value to increase suddenly for when water purification unit was starting up next time, the TDS value of the water of getting is very high, thereby influences user experience.
Therefore, how to provide a water purification system to make the water quality of each water intake meet the requirement is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a pure water backflow purification system, which can make the water quality of each water intake meet the requirement.
In order to achieve the above object, the utility model provides a following technical scheme:
a pure water return water purification system comprising: water intake pipe, pure water pipeline, pure water return line, waste water pipeline, composite filter, RO membrane filter core, the water intake pipe with composite filter's water inlet is connected, composite filter's delivery port with the water inlet of RO membrane filter is connected, the delivery port of RO membrane filter with the water inlet of pure water pipeline is connected, the delivery port of pure water pipeline is equipped with tap, the water inlet of pure water return line with the pure water delivery port intercommunication of RO membrane filter, the delivery port of pure water return line with the water inlet intercommunication of RO membrane filter, be equipped with the backward flow valve on the pure water return line, the water inlet of waste water pipeline with the waste water delivery port intercommunication of RO membrane filter, be equipped with the waste water valve on the waste water pipeline.
Preferably, the water outlet of the composite filter element is communicated with the water inlet of the RO membrane filter element sequentially through a water valve and a water pump.
Preferably, the composite filter element comprises a front filter element and a rear filter element, a water outlet of the water inlet pipeline is communicated with a water inlet of the front filter element, and a water outlet of the front filter element is communicated with a water inlet of the RO membrane filter element sequentially through the water valve and the water pump; the water inlet of the rear filter element is communicated with the water outlet of the RO membrane filter element through a water filtering pipeline, and the water outlet of the rear filter element is communicated with the water inlet of the pure water pipeline.
Preferably, a water outlet of the pure water return pipeline is communicated with a water inlet of the water pump, and a water inlet of the pure water return pipeline is connected to the water filtering pipeline.
Preferably, a first TDS probe is arranged on the water inlet pipeline, and a second TDS probe is arranged on the water filtering pipeline.
Preferably, still include with first TDS probe, the second TDS probe, the backwash valve, the water valve and the controller that the water pump is connected, the controller is used for when the TDS value that first TDS probe or the second TDS probe detected is higher than preset threshold, control backwash valve, water valve, the water pump is opened.
Preferably, a low-pressure switch is arranged on the water inlet pipeline, a high-pressure switch is arranged on the water filtering pipeline, and the controller is connected with the low-pressure switch and the high-pressure switch.
Preferably, a flow meter is arranged on the water filtering pipeline.
Preferably, a check valve is arranged on the water filtering pipeline.
Compared with the prior art, the technical scheme has the following advantages:
the utility model provides a pure water backward flow water purification system, include: the water inlet pipe way, the pure water pipeline, the pure water backward flow pipeline, the waste water pipeline, composite filter, the RO membrane filter core, the water inlet pipe way is connected with composite filter's water inlet, composite filter's delivery port and the water inlet of RO membrane filter core are connected, the delivery port of RO membrane filter core and the water inlet of pure water pipeline are connected, the delivery port of pure water pipeline is equipped with tap, the water inlet of pure water backward flow pipeline and the pure water delivery port intercommunication of RO membrane filter core, the delivery port of pure water backward flow pipeline and the water inlet intercommunication of RO membrane filter core, be equipped with the backward flow valve on the pure water backward flow pipeline, the water inlet of waste water pipeline and the waste water delivery port intercommunication of RO membrane filter core, be equipped with the waste water valve on the waste water pipeline. When the water purifier works specifically, raw water enters the composite filter element through the water inlet pipeline to be subjected to coarse filtration, is then filtered through the RO membrane filter element and then is output to the pure water pipeline, and finally water is taken through the water faucet. When water is not taken for a long time, the reflux valve is opened, and the waste water valve 14 is closed simultaneously, so that the RO membrane filter core can be soaked by pure water, and the waste water after the RO membrane filter core is washed is finally discharged from the waste water pipeline, thereby ensuring the water quality of the water taken by the faucet.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 shows a pure water backflow purification system according to an embodiment of the present invention.
The reference numbers are as follows:
1 is the ball valve tee bend, 2 is the tubular constant pressure valve, 3 is first TDS probe, 4 are low pressure switch, 5 are composite filter, 6 are water valve, 7 are the water pump, 8 are high pressure switch, 9 are the check valve, 10 are the second TDS probe, 11 are the backwash valve, 12 are the flowmeter, 13 are the RO membrane filter core, 14 are the waste water valve, 15 are tap.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 shows a pure water backflow purifying system according to an embodiment of the present invention.
The embodiment of the utility model provides a pure water backward flow water purification system, include: the water inlet pipe way, the pure water pipeline, the pure water return line, the waste water pipeline, composite filter element 5, RO membrane filter element 13, municipal tap water can loop through ball valve tee bend 1 and water inlet intercommunication of water inlet pipe way, be equipped with tubular constant pressure valve 2 on the water inlet pipe way, the water inlet pipe way is connected with composite filter element 5's water inlet, composite filter element 5's delivery port and RO membrane filter element 13's water inlet are connected, RO membrane filter element 13's delivery port and pure water pipeline's water inlet are connected, the delivery port of pure water pipeline is equipped with tap 15, pure water return line's water inlet and RO membrane filter element 13's pure water delivery port intercommunication, pure water return line's delivery port and RO membrane filter element 13's water inlet intercommunication, be equipped with backward flow valve 11 on the pure water return line, the water inlet of waste water pipeline and RO membrane filter element 13's waste water delivery port intercommunication, be equipped with waste water valve 14 on the waste water pipeline. When the water purifier works specifically, raw water enters the composite filter element 5 through the water inlet pipeline to be subjected to coarse filtration, then is filtered through the RO membrane filter element 13 and then is output to the pure water pipeline, and finally water is taken through the water faucet 15. When water is not taken for a long time, the reflux valve 11 is opened, and the waste water valve 14 is closed at the same time, so that pure water can soak the RO membrane filter element 13, and waste water after washing the RO membrane filter element 13 is finally discharged from a waste water pipeline, thereby ensuring the water quality of water taken by the faucet 15.
Further, the water outlet of the composite filter element 5 is communicated with the water inlet of the RO membrane filter element 13 sequentially through the water valve 6 and the water pump 7, the booster pump is preferably selected for the water pump 7, and during normal operation, the water valve 6 and the water pump 7 need to be opened so that the water pump 7 can convey the water filtered by the composite filter element 5 to the RO membrane filter element 13.
Specifically, the composite filter element 5 is preferably a PCB composite filter element 5, the composite filter element 5 comprises a front filter element and a rear filter element, the front filter element comprises PP cotton, non-woven fabric, a scale inhibitor and a carbon rod, the rear filter element comprises a carbon rod, the front filter element and the rear filter element are integrated, the space occupation of the equipment can be reduced, a water outlet of a water inlet pipeline is communicated with a water inlet of the front filter element, and a water outlet of the front filter element is communicated with a water inlet of the RO membrane filter element 13 through a water valve 6 and a water pump 7 in sequence; the water inlet of the post-filter element is communicated with the water outlet of the RO membrane filter element 13 through a water filtering pipeline, and the water outlet of the post-filter element is communicated with the water inlet of the pure water pipeline. In the specific process of water purification, one path of water filtered by the RO membrane filter element 13 flows into the pure water return pipeline, and the other path of water flows into the post-filter element through the water filtering pipeline and finally flows into the pure water pipeline.
Wherein, the delivery port of pure water return line and the water inlet of water pump 7 communicate, and the water inlet of pure water return line is connected on the strainer line, and the pure water accessible water pump 7 of pure water return line flows back into RO membrane filter core 13 promptly.
Further, be equipped with first TDS probe 3 on the water inlet line, first TDS probe 3 can detect the TDS value in the water inlet line, is equipped with second TDS probe 10 on the strainer line, and second TDS probe 10 can detect the TDS value in the strainer line.
Furthermore, the water purifier also comprises a controller connected with the first TDS probe 3, the second TDS probe 10, the reflux valve 11, the water preparation valve 6 and the water pump 7, wherein the reflux valve 11 and the water preparation valve 6 are preferably electromagnetic valves, the water inlet pipeline is provided with a low-pressure switch 4, the water filter pipeline is provided with a high-pressure switch 8, and the controller is also connected with the low-pressure switch 4 and the high-pressure switch 8.
The low-voltage switch 4 is switched off when the water pressure is lower than a preset value and switched on when the water pressure is higher than the preset value, so that whether the system is lack of raw water or not can be judged, and if the system is lack of water, the system can give an alarm. When the low-voltage switch 4 is switched off, the controller receives a high level signal, and when the low-voltage switch 4 is switched on, the controller receives a low level signal. When the low-voltage switch 4 is switched off, the controller controls the return valve 11 to be closed, the water production valve 6 to be closed, the waste water valve 14 to be closed and the water pump 7 to be closed, and at the moment, the water purification system stops working.
The high-voltage switch 8 is closed when the water pressure is lower than a preset value and is opened when the water pressure is higher than the preset value, and whether the water faucet 15 is in a water taking state or not is judged in turn. When the high-voltage switch 8 is switched off, the controller receives a high-level signal, and when the high-voltage switch 8 is switched on, the controller receives a low-level signal.
When the low-voltage switch 4 is closed and the high-voltage switch 8 is closed, the controller controls the water control valve 6 to be opened, the water pump 7 to be opened and the waste water valve 14 to be closed, at the moment, the water purification system prepares pure water, the pure water flows into the post-positioned filter element of the composite filter element 5 and finally flows into a pure water pipeline, and a user can drink the pure water by opening the water tap 15.
After water taking is finished, when the low-voltage switch 4 is closed and the high-voltage switch 8 is disconnected, the controller controls the water production valve 6 to be closed, the water pump 7 to be closed and the waste water valve 14 to be closed, and at the moment, the water purification system is stopped to not produce pure water.
Within the time interval of 10 minutes, if the user opens the tap 15 again to take pure water, the water purification system is in the normal pure water making mode.
If the time interval exceeds 10 minutes, the controller controls the water purification system to enter a pure water backflow mode, namely, the water production valve 6 is controlled to be opened, the water pump 7 is controlled to be opened, the waste water valve 14 is controlled to be closed, and the backflow valve 11 is controlled to be opened, at the moment, the working time of each component is 60 seconds, the flow rate of pure water backflow can be ensured to reach the state of filling the whole RO membrane filter element 13 raw water end, so that the pure water can soak the RO membrane filter element 13, and high-concentration raw water can be discharged from the waste water pipe; if the time interval is 24 hours, the water purification system does not turn on the water tap 15 to take water, and then the pure water reflux mode is also entered; if the raw water quality is poor, the TDS value detected by the first TDS probe 3 is higher than a preset threshold value; secondly the second TDS probe 10 in the strainer line is also a water quality testing device, when the TDS value that second TDS probe 10 detected was higher than predetermineeing the threshold value, water purification system also can get into pure water reflux system promptly.
The time limit is preferable, and may be adjusted according to actual conditions.
In order to facilitate the maintenance of the water purification system, the flow meter 12 is arranged on the water filtering pipeline, namely, the total amount of pure water flowing into the pure water pipeline can be obtained through the flow meter 12, so that a basis is provided for a user to replace a filter element conveniently. In particular, the connection of the pure water return line to the water filter line is preferably located between the flow valve and the second TDS probe 10.
In addition, in order to prevent the pure water in the water filtering pipeline from flowing back, a check valve 9 is arranged on the water filtering pipeline, and the check valve 9 is preferably arranged between the second TDS probe 10 and the high-voltage switch 8.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above is to the utility model provides a pure water backflow water purification system introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (9)
1. The utility model provides a pure water backward flow water purification system which characterized in that includes: water intake pipe, pure water pipeline, pure water return line, waste water pipeline, composite filter, RO membrane filter core, the water intake pipe with composite filter's water inlet is connected, composite filter's delivery port with the water inlet of RO membrane filter is connected, the delivery port of RO membrane filter with the water inlet of pure water pipeline is connected, the delivery port of pure water pipeline is equipped with tap, the water inlet of pure water return line with the pure water delivery port intercommunication of RO membrane filter, the delivery port of pure water return line with the water inlet intercommunication of RO membrane filter, be equipped with the backward flow valve on the pure water return line, the water inlet of waste water pipeline with the waste water delivery port intercommunication of RO membrane filter, be equipped with the waste water valve on the waste water pipeline.
2. The pure water backflow and purification system according to claim 1, wherein the water outlet of the composite filter element is communicated with the water inlet of the RO membrane filter element sequentially through a water valve and a water pump.
3. The pure water backflow and purification system according to claim 2, wherein the composite filter element comprises a front filter element and a rear filter element, the water outlet of the water inlet pipeline is communicated with the water inlet of the front filter element, and the water outlet of the front filter element is communicated with the water inlet of the RO membrane filter element sequentially through the water valve and the water pump; the water inlet of the rear filter element is communicated with the water outlet of the RO membrane filter element through a water filtering pipeline, and the water outlet of the rear filter element is communicated with the water inlet of the pure water pipeline.
4. The pure water return and purification system according to claim 3, wherein the water outlet of the pure water return line is communicated with the water inlet of the water pump, and the water inlet of the pure water return line is connected to the water filter line.
5. The pure water return and purification system of claim 4, wherein a first TDS probe is provided on the water inlet line, and a second TDS probe is provided on the water filter line.
6. The pure water backwash purification system of claim 5 further comprising a controller connected to the first TDS probe, the second TDS probe, the backwash valve, the water valve and the water pump, the controller being configured to control the backwash valve, the water valve and the water pump to be turned on when a TDS value detected by the first TDS probe or the second TDS probe is above a preset threshold.
7. The pure water return and purification system of claim 6, wherein the water inlet pipeline is provided with a low-pressure switch, the water filter pipeline is provided with a high-pressure switch, and the controller is connected with the low-pressure switch and the high-pressure switch.
8. A pure water return purification system according to claim 3, wherein a flow meter is provided on the water filtration line.
9. A pure water return and purification system according to claim 3, wherein a one-way valve is provided on the water filter line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023147750.1U CN214299540U (en) | 2020-12-23 | 2020-12-23 | Pure water backflow water purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023147750.1U CN214299540U (en) | 2020-12-23 | 2020-12-23 | Pure water backflow water purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214299540U true CN214299540U (en) | 2021-09-28 |
Family
ID=77860889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023147750.1U Active CN214299540U (en) | 2020-12-23 | 2020-12-23 | Pure water backflow water purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214299540U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114409110A (en) * | 2022-01-06 | 2022-04-29 | 佛山市美的清湖净水设备有限公司 | Water purification system |
| CN115231724A (en) * | 2022-07-29 | 2022-10-25 | 佛山市美的清湖净水设备有限公司 | Water purification system |
| CN115475519A (en) * | 2021-11-25 | 2022-12-16 | 青岛海尔施特劳斯水设备有限公司 | Water purifier and control method thereof |
-
2020
- 2020-12-23 CN CN202023147750.1U patent/CN214299540U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115475519A (en) * | 2021-11-25 | 2022-12-16 | 青岛海尔施特劳斯水设备有限公司 | Water purifier and control method thereof |
| CN114409110A (en) * | 2022-01-06 | 2022-04-29 | 佛山市美的清湖净水设备有限公司 | Water purification system |
| CN115231724A (en) * | 2022-07-29 | 2022-10-25 | 佛山市美的清湖净水设备有限公司 | Water purification system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214299540U (en) | Pure water backflow water purification system | |
| CN104030475B (en) | A kind of water cleaning systems and method with dense water water and backwashing function | |
| CN105198111B (en) | The household water filter of automatic cleaning filter membranes and method | |
| CN106830201B (en) | Automatic concentrated water discharge system of water purifier and water purifier | |
| CN106477645A (en) | A kind of control device of water purifier, water purifier and its control method | |
| CN208378491U (en) | Water purification system | |
| CN204097212U (en) | A kind of water cleaning systems with dense water water and backwashing function | |
| CN209178096U (en) | Water purification system | |
| CN216825224U (en) | Water purifier device and system | |
| CN205933318U (en) | Take big flux of double pump device, low waste water reverse osmosis water purifier | |
| CN109574288B (en) | Water purification system | |
| CN208120789U (en) | A kind of water purification machine judging automatically the RO membrane filter service life | |
| CN219194714U (en) | Front ultrafiltration back flush system of full house water purification | |
| CN210528597U (en) | Intelligent wastewater recycling water purifier | |
| CN217868391U (en) | Pure water backflow system of water purifier | |
| CN107459157A (en) | Intelligent water-saving type anti-penetration water purifier and its process for purifying water with reflux | |
| CN105330042A (en) | Highly-intelligent water purifier | |
| CN210163221U (en) | Ecological environment-friendly wastewater-free water purifier | |
| CN211367057U (en) | Water purification system | |
| CN211847398U (en) | Water purifier and automatic flushing device thereof | |
| CN211471013U (en) | Water purifier capable of adjusting TDS value | |
| CN208824276U (en) | Water treatment system and water treatment facilities | |
| CN203694921U (en) | Wastewater-free RO (Reverse Osmosis) water purifier | |
| CN208632228U (en) | A kind of micro- waste water energy conservation reverse osmosis water purifier of intelligent frequency-conversion | |
| CN205398277U (en) | Water purification system with air defense is taken out and is detected function with filter element service life |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |