CN213771434U - Large-flux RO (reverse osmosis) membrane water-saving and purifying system - Google Patents
Large-flux RO (reverse osmosis) membrane water-saving and purifying system Download PDFInfo
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- CN213771434U CN213771434U CN202022373902.3U CN202022373902U CN213771434U CN 213771434 U CN213771434 U CN 213771434U CN 202022373902 U CN202022373902 U CN 202022373902U CN 213771434 U CN213771434 U CN 213771434U
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Abstract
The utility model relates to a large-flux RO membrane water-saving and purifying system, raw water inlet is connected with a reverse osmosis membrane A through a booster pump, and a concentrated water outlet of the reverse osmosis membrane A is connected with a water inlet of a reverse osmosis membrane B; the pure water outlets of the reverse osmosis membrane A and the reverse osmosis membrane B are converged and then divided into two paths, one path of the two paths of the pure water is refluxed to a raw water inlet through a reflux electromagnetic valve, and the other path of the two paths of the pure water flows to a water storage barrel through a pure water electromagnetic valve; the concentrated water outlet of the reverse osmosis membrane B is divided into two paths, one path is used for discharging wastewater, the other path flows back to the raw water inlet, and the two paths respectively control the flow ratio through a flow limiting valve. The utility model connects two reverse osmosis membranes in series, which improves the water yield of pure water; the proportion of discharge and return water is controlled by a flow valve, the ratio of pure water making quantity to concentrated water discharge quantity is improved, and the purpose of saving water is achieved; the time delay normally closed of the backflow electromagnetic valve and the time delay normally open of the pure water electromagnetic valve are controlled through the time delay relay, so that the control is simple, and the design is ingenious.
Description
Technical Field
The utility model relates to a water purification system belongs to water purification technical field.
Background
The water purifiers enter thousands of households, the sale cost of the existing water purifiers is not a main problem, but the use cost is a main problem restricting the development of the industry, and the main problems comprise filter element replacement, water saving, electricity saving and the like.
The national water-saving water efficiency standard of the water purifier is the ratio of pure water making quantity to concentrated water discharge quantity, the highest first-level water efficiency standard is 3:1, and the prior art does not have a technology exceeding the first-level water efficiency at present. How to improve the water efficiency becomes a technical problem to be solved urgently in the field.
Disclosure of Invention
The utility model aims at providing a big flux RO membrane water purification system that economizes on water establishes ties two reverse osmosis membranes, discharges through flow valve control simultaneously and the proportion of return water, promotes the pure water system water yield and the ratio of dense water emission volume, reaches the purpose of water conservation.
The utility model adopts the following technical proposal:
a large-flux RO membrane water-saving and purifying system is characterized in that raw water inlet is connected with a reverse osmosis membrane A through a booster pump, and a concentrated water outlet of the reverse osmosis membrane A is connected with a water inlet of a reverse osmosis membrane B; the pure water outlets of the reverse osmosis membrane A and the reverse osmosis membrane B are converged and then divided into two paths, one path of the two paths of the pure water is refluxed to a raw water inlet through a reflux electromagnetic valve, and the other path of the two paths of the pure water flows to a water storage barrel through a pure water electromagnetic valve; the concentrated water outlet of the reverse osmosis membrane B is divided into two paths, one path is used for discharging wastewater, the other path flows back to the raw water inlet, and the two paths respectively control the flow ratio through a flow limiting valve.
Preferably, a water inlet electromagnetic valve is arranged in front of the booster pump, and a composite pretreatment filter element is arranged in front of the water inlet electromagnetic valve.
Preferably, the back end of the backflow valve is provided with a first one-way valve.
Preferably, the rear end of the pure water electromagnetic valve is provided with a second one-way valve.
Preferably, a third one-way valve is arranged on a path of channel from the concentrated water outlet of the reverse osmosis membrane B to the raw water inlet.
Preferably, the flow rate of the booster pump is 400 gallons per hour, and the flow rates of the reverse osmosis membrane A and the reverse osmosis membrane B are both 400 gallons per hour.
Further, the flow rate of a pure water outlet of the reverse osmosis membrane A is 1000ml/min, and the flow rate of a concentrated water outlet is 1500 ml/min; the flow of a pure water outlet of the reverse osmosis membrane B is 700ml/min, and the flow of a concentrated water outlet is 800 ml/min.
Furthermore, in two paths separated from the concentrated water outlet of the reverse osmosis membrane B, the flow of the flow limiting valve in one path for discharging the wastewater is 300ml/min, and the flow of the flow limiting valve in the other path for refluxing to the raw water inlet is 500 ml/min.
Furthermore, the backflow electromagnetic valve is controlled in a delayed mode through a delay relay, and the pure water electromagnetic valve is controlled in a delayed mode through the delay relay.
The beneficial effects of the utility model reside in that:
1) the two reverse osmosis membranes are connected in series, so that the water yield of pure water is improved;
2) the proportion of discharge and return water is controlled by the flow valve, the ratio of pure water making quantity to concentrated water discharge quantity is improved, and the purpose of saving water is achieved.
3) The time delay normally closed of the backflow electromagnetic valve and the time delay normally open of the pure water electromagnetic valve are controlled through the time delay relay, so that the control is simple, and the design is ingenious.
Drawings
Fig. 1 is a structural diagram of the large flux RO membrane water-saving and purifying system of the utility model.
FIG. 2 is a control circuit diagram of the water inlet solenoid valve, the booster pump, the return solenoid valve, and the pure water solenoid valve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
The relationship among the high water saving, the long service life and the high desalination rate is interrelated and mutually restricted. Achieving high water savings necessarily affects membrane life (total water production) and salt rejection (pure water quality).
The large flux means that the RO membrane of the household water purifier is above 400G (gallon), namely the water production amount is 400G/hour (1000 ml/min).
The 400G booster pump is used for 400G RO membranes, the flow rate is 2500ml/min after the 400G pump is boosted, the water efficiency is 1:1.5, the pure water flow rate is 1000ml/min, and the concentrated water flow rate is 1500 ml/min.
As shown in FIG. 1, the booster pump uses a flow rate of 400G, i.e., 2500 ml/min.
The reverse osmosis membrane A adopts 400G flow, 1000ml/min pure water flow and 1400ml/min concentrated water flow.
The reverse osmosis membrane B adopts 400G flow, 700ml/min pure water flow and 700ml/min concentrated water flow.
The reverse osmosis membrane A and the reverse osmosis membrane B are connected in series. The concentrated water is divided into two paths, one path is discharged at 300ml/min, and the other path is refluxed at 400 ml/min.
Referring to fig. 1 in particular, a large-flux RO membrane water-saving and purifying system, raw water inlet is connected with a reverse osmosis membrane A through a booster pump, and a concentrated water outlet of the reverse osmosis membrane A is connected with a water inlet of a reverse osmosis membrane B; the pure water outlets of the reverse osmosis membrane A and the reverse osmosis membrane B are converged and then divided into two paths, one path of the two paths of the pure water is refluxed to a raw water inlet through a reflux electromagnetic valve, and the other path of the two paths of the pure water flows to a water storage barrel through a pure water electromagnetic valve; the concentrated water outlet of the reverse osmosis membrane B is divided into two paths, one path is used for discharging wastewater, the other path flows back to the raw water inlet, and the two paths respectively control the flow ratio through a flow limiting valve.
In this embodiment, referring to fig. 1, a water inlet solenoid valve is arranged before the booster pump, and a composite pretreatment filter element is also arranged before the water inlet solenoid valve.
In this embodiment, referring to fig. 1, the back end of the back flow valve is provided with a first one-way valve.
In this embodiment, referring to fig. 1, the back end of the pure water solenoid valve is provided with a second check valve.
In this embodiment, referring to fig. 1, a third check valve is arranged on a path of the concentrated water flowing back to the raw water inlet after flowing out of the concentrated water outlet of the reverse osmosis membrane B.
In this example, referring to FIG. 1, the booster pump has a flow rate of 400 gallons per hour and both reverse osmosis membrane A and reverse osmosis membrane B have a flow rate of 400 gallons per hour.
In this embodiment, referring to fig. 1, the flow rate of the pure water outlet of the reverse osmosis membrane a is 1000ml/min, and the flow rate of the concentrated water outlet is 1500 ml/min; the flow of a pure water outlet of the reverse osmosis membrane B is 700ml/min, and the flow of a concentrated water outlet is 800 ml/min.
In this embodiment, with reference to fig. 1, in two paths separated from the concentrated water outlet of the reverse osmosis membrane B, the flow rate of the flow limiting valve in the path from which wastewater is discharged is 300ml/min, and the flow rate of the flow limiting valve in the path from which wastewater flows back to the raw water inlet is 500 ml/min.
In this embodiment, referring to fig. 2, the return solenoid valve is time-delayed by a time-delay relay, and the pure water solenoid valve is time-delayed by a time-delay relay.
Initial water production and pure water reflux: within 2 minutes of initial water production, due to the characteristics of the RO membrane, the pure water desalination rate does not reach the standard, so the produced water returns to the raw water end and is controlled by a water return electromagnetic valve, a pure water electromagnetic valve, a one-way valve and an electric control circuit. The pressure switch controls the main switch of the water purifier.
Reasons for the pure water flow of the reverse osmosis membrane B of 700ml/min are as follows: the inflow concentration (TDS value dissolved in total solid content in water) of the RO membrane directly influences the water production flow, and the inflow water of the reverse osmosis membrane B is the concentrated water outflow water of the reverse osmosis membrane A, so that the water yield of the reverse osmosis membrane B is reduced compared with that of the reverse osmosis membrane A.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.
Claims (9)
1. The utility model provides a big flux RO membrane water conservation water purification system which characterized in that:
the raw water inlet is connected with a reverse osmosis membrane A through a booster pump, and a concentrated water outlet of the reverse osmosis membrane A is connected with a water inlet of a reverse osmosis membrane B;
the pure water outlets of the reverse osmosis membrane A and the reverse osmosis membrane B are converged and then divided into two paths, one path of the two paths of the pure water is refluxed to a raw water inlet through a reflux electromagnetic valve, and the other path of the two paths of the pure water flows to a water storage barrel through a pure water electromagnetic valve;
the concentrated water outlet of the reverse osmosis membrane B is divided into two paths, one path is used for discharging wastewater, the other path flows back to the raw water inlet, and the two paths respectively control the flow ratio through a flow limiting valve.
2. The large-flux RO membrane water-saving and purifying system as claimed in claim 1, characterized in that: a water inlet electromagnetic valve is arranged in front of the booster pump, and a composite pretreatment filter element is also arranged in front of the water inlet electromagnetic valve.
3. The large-flux RO membrane water-saving and purifying system as claimed in claim 1, characterized in that: and a first one-way valve is arranged at the rear end of the backflow electromagnetic valve.
4. The large-flux RO membrane water-saving and purifying system as claimed in claim 1, characterized in that: and a second one-way valve is arranged at the rear end of the pure water electromagnetic valve.
5. The large-flux RO membrane water-saving and purifying system as claimed in claim 1, characterized in that: and a third one-way valve is arranged on a path of channel from the concentrated water outlet of the reverse osmosis membrane B to the raw water inlet.
6. The large-flux RO membrane water-saving and purifying system as claimed in claim 1, characterized in that: the flow rate of the booster pump is 400 gallons per hour, and the flow rates of the reverse osmosis membrane A and the reverse osmosis membrane B are both 400 gallons per hour.
7. The large-flux RO membrane water-saving and purifying system as claimed in claim 6, characterized in that: the flow of the pure water outlet of the reverse osmosis membrane A is 1000ml/min, and the flow of the concentrated water outlet is 1500 ml/min; the flow of a pure water outlet of the reverse osmosis membrane B is 700ml/min, and the flow of a concentrated water outlet is 800 ml/min.
8. The large-flux RO membrane water-saving and purifying system as claimed in claim 7, characterized in that: in two paths separated from the concentrated water outlet of the reverse osmosis membrane B, the flow of the flow limiting valve in one path for discharging the wastewater is 300ml/min, and the flow of the flow limiting valve in the other path for returning to the raw water inlet is 500 ml/min.
9. The large-flux RO membrane water-saving and purifying system as claimed in claim 1, characterized in that: the backflow electromagnetic valve is controlled in a delayed mode through a delay relay, and the pure water electromagnetic valve is controlled in a delayed mode through the delay relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022373902.3U CN213771434U (en) | 2020-10-22 | 2020-10-22 | Large-flux RO (reverse osmosis) membrane water-saving and purifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022373902.3U CN213771434U (en) | 2020-10-22 | 2020-10-22 | Large-flux RO (reverse osmosis) membrane water-saving and purifying system |
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| Publication Number | Publication Date |
|---|---|
| CN213771434U true CN213771434U (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022373902.3U Active CN213771434U (en) | 2020-10-22 | 2020-10-22 | Large-flux RO (reverse osmosis) membrane water-saving and purifying system |
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|---|---|
| CN (1) | CN213771434U (en) |
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2020
- 2020-10-22 CN CN202022373902.3U patent/CN213771434U/en active Active
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20220118 Address after: 100176 room 401-11, unit 2, floor 4, building 21, yard 1, Desheng North Street, economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing yuanzhimiao Technology Co.,Ltd. Address before: 100039 No.3, 3rd floor, door 4, 14th floor, No.32 Fuxing Road, Haidian District, Beijing Patentee before: Zhang Xuewu Patentee before: Zhang Yuesheng |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220816 Address after: Room 401, Unit 3, Building 3, Yard 72, Guangcai Road, Fengtai District, Beijing 100075 Patentee after: Ding Jiming Patentee after: Zhang Xuewu Patentee after: Zhang Yuesheng Address before: 100176 room 401-11, unit 2, floor 4, building 21, yard 1, Desheng North Street, economic and Technological Development Zone, Daxing District, Beijing Patentee before: Beijing yuanzhimiao Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |