CN212334818U - Water purification system - Google Patents
Water purification system Download PDFInfo
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- CN212334818U CN212334818U CN202020991466.3U CN202020991466U CN212334818U CN 212334818 U CN212334818 U CN 212334818U CN 202020991466 U CN202020991466 U CN 202020991466U CN 212334818 U CN212334818 U CN 212334818U
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Abstract
A water purification system is characterized in that a water inlet of a pre-filter is connected with a raw water source, a water outlet of the pre-filter is connected with a water inlet of a secondary filter, a water outlet of the secondary filter is connected with a water inlet of a water storage tank, a water outlet of the water storage tank is connected with a water inlet of an RO membrane filter through a booster pump, a water purification port of the RO membrane filter is connected with a water inlet of a post-filter through an adjustable flowmeter I, and a water outlet of the post-filter is connected with a water inlet of a purified; the waste water outlet of the RO membrane filter is connected with an adjustable flow meter II, the water inlet end of an adjustable flow meter III and a flushing pipe in parallel, the water outlet end of the adjustable flow meter II is connected with the water return port of the water storage tank through a water return pipe, and the water outlet end of the adjustable flow meter III is connected with a waste water drain pipe; the other end of the flushing pipe is connected with a water return port of the water storage tank, and an electric control valve IV is connected on the flushing pipe in series. The utility model discloses not only improve the utilization ratio of raw water greatly, can guarantee again that RO membrane filter is in preferred operating condition moreover.
Description
Technical Field
The utility model relates to a water purification preparation technical field, concretely relates to water purification system.
Background
The water production rate of the existing water purification system is generally only about 50 percent, namely the volume ratio of the produced purified water to the discharged wastewater is about 1:2, the utilization rate of raw water is only about 30 percent, the defects of high wastewater rate, low water utilization rate and the like exist generally, and the water resource is seriously wasted after long-term use. For the present day that the fresh water resources are increasingly deficient, the existing water purification system has extremely low water utilization rate and is difficult to meet the idea and the requirement of energy and water conservation which are vigorously advocated by the nation. In addition, the existing water purification system generally utilizes tap water as a water source, and if the water purification system is used in the field and in regions without tap water, a self-sucking pump must be additionally arranged at the water inlet end of raw water so as to meet the use requirement of the water purification system, so that the equipment cost and the operation and maintenance cost of the water purification system are increased invisibly, and the use of the water purification system in the field and in regions without tap water is restricted.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water purification system to overcome the not enough of prior art.
The utility model adopts the technical proposal that: a water purification system comprises a pre-filter, a secondary filter, a water storage tank, a booster pump, an RO membrane filter, a post-filter and a water purification tank; the water inlet of the pre-filter is connected with a raw water source, the water outlet of the pre-filter is connected with the water inlet of a secondary filter, the water outlet of the secondary filter is connected with the water inlet of a water storage tank, the water outlet of the water storage tank is connected with the water inlet of an RO membrane filter through a booster pump, the water purifying port of the RO membrane filter is connected with the water inlet of a post-filter through an adjustable flowmeter I, the water outlet of the post-filter is connected with the water inlet of a purified water tank, and the water outlet of the purified water tank is connected with a purified; the waste water outlet of the RO membrane filter is connected with an adjustable flow meter II, the water inlet end of an adjustable flow meter III and a flushing pipe in parallel, the water outlet end of the adjustable flow meter II is connected with the water return port of the water storage tank through a water return pipe, and the water outlet end of the adjustable flow meter III is connected with a waste water drainage pipe; the other end of the flushing pipe is connected with a water return port of the water storage tank, and an electric control valve IV is connected on the flushing pipe in series.
A high water level liquid level meter I is arranged at the upper part in the water storage tank, a low water level liquid level meter I is arranged at the lower part in the water storage tank, an electric control valve I is connected between the water outlet of the secondary filter and the water inlet of the water storage tank in series, and an electric control valve II is connected between the booster pump and the water inlet of the RO membrane filter in series; i signal end of high water level gauge is connected with the control end electricity of automatically controlled valve I, I signal end of low water level gauge is connected with the control end electricity of booster pump, the control end electricity of automatically controlled valve II.
The water purification tank is characterized in that a high water level liquid level meter II is arranged at the upper part in the water purification tank, a medium water level liquid level meter is arranged at the middle part, a low water level liquid level meter II is arranged at the lower part, and signal ends of the high water level liquid level meter II and the medium water level liquid level meter are electrically connected with a control end of the booster pump and a control end of the electric control valve II.
The water purification device is characterized in that a low water level liquid level meter II is arranged at the inner lower part of the water purification water tank, an electric control valve III is connected to the water outlet of the water purification water tank in series, and the signal end of the low water level liquid level meter II is electrically connected with the control end of the electric control valve III.
The front filter and the rear filter are both activated carbon filters, and the secondary filter is a PP cotton filter; the adjustable flowmeter I, the adjustable flowmeter II and the adjustable flowmeter III are all rotor flowmeters.
Compared with the prior art, the utility model discloses beneficial effect who has:
1. the utility model discloses a rational distribution RO membrane filter's water purification goes out water, waste water recovery and wastewater discharge three proportion, makes the waste water recovery proportion reach about 50%, has not only improved the utilization ratio of raw water greatly, and the raw water utilization ratio can reach 85% at most, can guarantee moreover that RO membrane filter is in preferred operating condition, maintains RO membrane filter's normal life.
2. The utility model discloses a set up the water storage box between RO membrane filtration and leading filtration, the raw water gets into the water storage box through leading filter, secondary filter gravity flow, not only can satisfy field and no running water area and use, and the raw water end of intaking need not install the self priming pump additional moreover, has practiced thrift water purification system's equipment cost and operation maintenance expense.
3. The utility model discloses a wash the whole retrieval and utilization of waste water to RO membrane filter, further improved the utilization ratio of raw water.
4. The utility model discloses a first water (the raw water after leading filter, secondary filter filtration) of retrieval and utilization waste water and cistern mixes the concentration that reduces to get into RO membrane filter front end water, avoids the jam in RO membrane hole, guarantees RO membrane filter's normal life. The problem that the water inlet salt content (concentration) of the RO membrane filter is higher and higher due to the fact that waste water is directly refluxed to the front end of the RO membrane filter is solved, damage to the RO membrane is caused, and the service life of the RO membrane is greatly shortened.
Drawings
Fig. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The present invention will be described in detail with reference to fig. 1 and the following detailed description.
A water purification system comprises a pre-filter 1, a secondary filter 2, a water storage tank 3, a booster pump 4, an RO membrane filter 5, a post-filter 7 and a purified water tank 8; the water inlet of the pre-filter 1 is connected with a raw water source, the water outlet of the pre-filter is connected with the water inlet of the secondary filter 2, the water outlet of the secondary filter 2 is connected with the water inlet of the water storage tank 3, the water outlet of the water storage tank 3 is connected with the water inlet of the RO membrane filter 5 through the booster pump 4, the water purifying port of the RO membrane filter 5 is connected with the water inlet of the post-filter 7 through the adjustable flowmeter I6, the water outlet of the post-filter 7 is connected with the water inlet of the water purifying water tank 8, and the water outlet of the water purifying water tank 8 is connected with; the waste water outlet of the RO membrane filter 5 is connected with an adjustable flow meter II 9, the water inlet end of an adjustable flow meter III 10 and a flushing pipe 19 in parallel, the water outlet end of the adjustable flow meter II 9 is connected with the water return port of the water storage tank 3 through a water return pipe 21, and the water outlet end of the adjustable flow meter III 10 is connected with a waste water drainage pipe; the other end of the flushing pipe 19 is connected with a water return port of the water storage tank 3, and an electric control valve IV 20 is connected on the flushing pipe 19 in series.
The front filter 1 and the rear filter 7 are both activated carbon filters, and the secondary filter 2 is a PP cotton filter; the adjustable flowmeter I6, the adjustable flowmeter II 9 and the adjustable flowmeter III 10 are all rotor flowmeters.
A high water level liquid level meter I11 is arranged at the upper part in the water storage tank 3, a low water level liquid level meter I12 is arranged at the lower part in the water storage tank 3, an electric control valve I13 is connected between the water outlet of the secondary filter 2 and the water inlet of the water storage tank 3 in series, and an electric control valve II 14 is connected between the booster pump 4 and the water inlet of the RO membrane filter 5 in series; the I11 signal end of high water level gauge is connected with the control end electricity of automatically controlled valve I13, I12 signal end of low water level gauge is connected with the control end of booster pump 4, the control end electricity of automatically controlled valve II 14.
The upper portion is equipped with high water level gauge II 15 in the water purification tank 8, and the middle part is equipped with well water level gauge 16, and the lower part is equipped with low water level gauge II 17, the signal end of high water level gauge II 15, well water level gauge 16 is connected with booster pump 4's control end, the control end electricity of automatically controlled valve II 14.
The lower part in the water purification tank 8 is provided with a low water level liquid level meter II 17, the water outlet of the water purification tank 8 is connected with an electric control valve III 18 in series, and the signal end of the low water level liquid level meter II 17 is electrically connected with the control end of the electric control valve III 18.
The utility model discloses the raw water source of being connected with leading filter 1 can be the running water, also can be the water source of self-contained high flush tank, and when the water source was done to self-contained high flush tank, the drop that keeps 2-3 meters at least between high flush tank delivery port and the leading filter 1 water inlet to satisfy leading filter 1, the minimum operating pressure of secondary filter 2 (≧ 0.02 MP). The tap water as the water source can generally meet the minimum working pressure of the pre-filter 1 and the secondary filter 2.
The utility model discloses the theory of operation: the primary water after the primary filtration of the raw water by the pre-filter 1 and the secondary filter 2 flows into the water storage tank 3, the primary water in the water storage tank 3 is pressurized by the booster pump 4 and then enters the RO membrane filter 5 for filtration, the purified water enters the post-filter 7 for filtration after the flow is controlled by the adjustable flowmeter I6 and then flows into the water purification tank 8, the waste water is discharged by the waste water discharge pipe after the flow is proportionally distributed by the adjustable flowmeter II 9 and the adjustable flowmeter III 10, and the waste water is mixed with the primary water in the water storage tank 3 after the part of the waste water flows back to the water storage tank 3 through the return water pipe 21 and is reused.
It should be noted that the flow distribution proportion of the adjustable flow meters i 6, ii 9 and iii 10 is generally as follows: the flow rate of purified water accounts for 25-35%, the flow rate of backwater accounts for about 50%, and the flow rate of drained water accounts for 15-25%; when the raw water quality is good (for example, the TDS value of tap water is more than or equal to 190), the purified water flow rate is large and can reach 35% at most, the drainage flow rate is small and can reach 15% at least; when the raw water quality is poor (for example, the TDS value of river water is less than or equal to 100), the proportion of the purified water flow is reduced to 25% at most, and the proportion of the drained water flow is increased to 25% at least; however, regardless of the quality of the raw water, the ratio of the return water flow is generally controlled to be about 50%, so that the utilization rate of the raw water is greatly improved, the water making rate of 1:0.85 can be realized to the maximum extent, the maximum utilization rate of the raw water can reach 85%, the flow rate of the water in the RO membrane filter 5 can be ensured, the RO membrane filter 5 is in a better working state, and the normal service life of the RO membrane filter 5 is maintained.
In the operation process of the utility model, when the water level of the water storage tank 3 rises to the high water level liquid level meter I11, the electric control valve I13 is closed to stop storing water, and when the water level is lower than the high water level liquid level meter I11, the electric control valve I13 is opened to continue storing water; when the water level of the water storage tank 3 is lower than the low-level liquid level meter I12, the booster pump 4 stops, the electric control valve II 14 is closed, and the system stops working. When the water level of the purified water tank 8 rises to the high-level liquid level meter II 15, the booster pump 4 stops, the electric control valve II 14 is closed, and the system stops working; when the water level of the purified water tank 8 is lower than the middle water level liquid level meter 16, the booster pump 4 is started, the electric control valve II 14 is opened, and the system recovers to work; when the water level of the purified water tank 8 is lower than the low-level liquid level meter II 17, the electric control valve III 18 is closed, and purified water supply is stopped.
The utility model discloses in the operation process, when needing to wash RO membrane filter 5, automatically controlled valve IV 20 is opened, and the sparge water stream is from 19 backward flows to water storage box 3 of wash pipe, utilizes again after mixing with the first water in the water storage box 3, further improves the utilization ratio of raw water.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. A water purification system comprises a pre-filter (1), a secondary filter (2), a water storage tank (3), a booster pump (4), an RO membrane filter (5), a post-filter (7) and a purified water tank (8); the method is characterized in that: the water inlet of the pre-filter (1) is connected with a raw water source, the water outlet of the pre-filter is connected with the water inlet of the secondary filter (2), the water outlet of the secondary filter (2) is connected with the water inlet of the water storage tank (3), the water outlet of the water storage tank (3) is connected with the water inlet of the RO membrane filter (5) through the booster pump (4), the water purifying port of the RO membrane filter (5) is connected with the water inlet of the post-filter (7) through the adjustable flowmeter I (6), the water outlet of the post-filter (7) is connected with the water inlet of the water purifying tank (8), and the water outlet of the water purifying tank (8) is connected with a water purifying outlet pipe; the waste water port of the RO membrane filter (5) is connected with an adjustable flow meter II (9), the water inlet end of an adjustable flow meter III (10) and a flushing pipe (19) in parallel, the water outlet end of the adjustable flow meter II (9) is connected with the water return port of the water storage tank (3) through a water return pipe (21), and the water outlet end of the adjustable flow meter III (10) is connected with a waste water drainage pipe; the other end of the flushing pipe (19) is connected with a water return port of the water storage tank (3), and an electric control valve IV (20) is connected on the flushing pipe (19) in series.
2. The water purification system of claim 1, wherein: a high water level liquid level meter I (11) is arranged at the upper part in the water storage tank (3), a low water level liquid level meter I (12) is arranged at the lower part in the water storage tank, an electric control valve I (13) is connected in series between the water outlet of the secondary filter (2) and the water inlet of the water storage tank (3), and an electric control valve II (14) is connected in series between the booster pump (4) and the water inlet of the RO membrane filter (5); the signal end of the high water level liquid level meter I (11) is electrically connected with the control end of the electric control valve I (13), and the signal end of the low water level liquid level meter I (12) is electrically connected with the control end of the booster pump (4) and the control end of the electric control valve II (14).
3. A water purification system according to claim 1 or 2, wherein: the water purification device is characterized in that a high-water-level liquid level meter II (15) is arranged at the upper part in the water purification water tank (8), a medium-water-level liquid level meter (16) is arranged at the middle part, and a low-water-level liquid level meter II (17) is arranged at the lower part, wherein the signal ends of the high-water-level liquid level meter II (15) and the medium-water-level liquid level meter (16) are electrically connected with the control end of the booster pump (4) and the control end of the.
4. A water purification system according to claim 3, wherein: the water purification device is characterized in that a low-water-level liquid level meter II (17) is arranged at the lower part in the water purification water tank (8), an electric control valve III (18) is connected to a water outlet of the water purification water tank (8) in series, and a signal end of the low-water-level liquid level meter II (17) is electrically connected with a control end of the electric control valve III (18).
5. The water purification system of claim 4, wherein: the front filter (1) and the rear filter (7) are both activated carbon filters, and the secondary filter (2) is a PP cotton filter; the adjustable flowmeter I (6), the adjustable flowmeter II (9) and the adjustable flowmeter III (10) are all rotor flowmeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020991466.3U CN212334818U (en) | 2020-06-03 | 2020-06-03 | Water purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020991466.3U CN212334818U (en) | 2020-06-03 | 2020-06-03 | Water purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212334818U true CN212334818U (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020991466.3U Active CN212334818U (en) | 2020-06-03 | 2020-06-03 | Water purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212334818U (en) |
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2020
- 2020-06-03 CN CN202020991466.3U patent/CN212334818U/en active Active
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