CN113694728A - Flushing method of nanofiltration and reverse osmosis water purifier - Google Patents
Flushing method of nanofiltration and reverse osmosis water purifier Download PDFInfo
- Publication number
- CN113694728A CN113694728A CN202110070704.6A CN202110070704A CN113694728A CN 113694728 A CN113694728 A CN 113694728A CN 202110070704 A CN202110070704 A CN 202110070704A CN 113694728 A CN113694728 A CN 113694728A
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- Prior art keywords
- water
- outlet pipe
- storage tank
- pipe
- pure water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 214
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 17
- 238000001728 nano-filtration Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 11
- 238000011010 flushing procedure Methods 0.000 title description 6
- 239000008399 tap water Substances 0.000 claims abstract description 35
- 235000020679 tap water Nutrition 0.000 claims abstract description 35
- 239000002351 wastewater Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 8
- 230000035622 drinking Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a nanofiltration and reverse osmosis water purifier, which comprises a filter element assembly arranged in a water purifier body, wherein the filter element assembly is connected with a tap water inlet pipe, the tap water inlet pipe is connected with a water pump and a water inlet valve, one side of the filter element assembly is connected with a wastewater outlet pipe, the wastewater outlet pipe is connected with a wastewater valve, the filter element assembly is connected with a pure water outlet pipe, the pure water outlet pipe is connected with a flowmeter, the pure water outlet pipe is connected with a pure water storage pipe, the pure water storage pipe is connected with a water storage tank, a piston is arranged in the water storage tank, the top of the water storage tank is connected with a tap water injection pipe, and the tap water injection pipe is communicated with the tap water inlet pipe. The technology of the invention not only solves the problem of poor quality of the first cup of water after the domestic drinking faucet is opened again, but also adopts a closed water storage tank mode, and the piston is arranged in the water storage tank, so that pure water can be reversely injected into the filter element assembly for washing by extruding the piston by tap water, and the pure water in the water storage tank cannot be polluted, and the tap water has higher pressure, so that the washing effect is better.
Description
Technical Field
The invention belongs to the technical field of water purifiers, and particularly relates to a flushing method of a nanofiltration and reverse osmosis water purifier.
Background
The water purifier is also called water purifier and water quality purifier, and is water treatment equipment for deeply filtering and purifying water according to the use requirement of water. The water purifier is generally used as a small purifier for household use. In the prior art, after the purifier shuts down, because pure water and dense water have been reserved respectively to the inside and outside of nanofiltration membrane and reverse osmosis membrane, because pure water and dense water have the concentration difference, the inboard outside can have the infiltration of each other in the membrane, lead to the TDS value of pure water to uprise, thereby lead to the first glass of water quality variation after the drinking water of living is opened once more.
Disclosure of Invention
In view of the problems raised by the above background art, the present invention is directed to: aims to provide a flushing method of a nanofiltration and reverse osmosis water purifier.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a receive and strain and reverse osmosis water purification machine, is including installing at this internal filter element group spare of purifier, the upside of filter element group spare is connected with the running water inlet tube, running water inlet tube connects with water pump and water intaking valve, the downside of filter element group spare is connected with waste water outlet pipe, waste water outlet pipe connection has the waste water valve, the filter element group spare is connected with pure water outlet pipe, pure water outlet pipe connection has the flowmeter, pure water outlet pipe connection has the pure water liquid reserve pipe, the pure water liquid reserve pipe is connected with the water storage tank, install the piston in the water storage tank, the water storage tank top is connected with the running water injection pipe, the running water injection pipe is linked together with the running water inlet tube.
Further limiting, the water inlet and outlet of the tap water inlet pipe and the pure water outlet pipe are both connected with a control switch. The structure design is convenient for controlling water inlet and outlet.
Further inject, the piston is connected with wear-resisting seal cover, wear-resisting seal cover is laminated with the inner wall of water storage tank mutually. The structural design enables the piston to have better sealing effect and be more wear-resistant and durable.
Further, the water inlet valve is the same as the waste water valve in specification and model. The structural design is convenient to purchase and install.
Further defined, the flowmeter is a turbine flowmeter. The structural design enables the measuring precision of the flowmeter to be higher.
A washing method of the nanofiltration and reverse osmosis water purifier based on any one of claims 1 to 5, which is characterized in that: the method comprises the following steps:
s1: when the water purifier is in a normal water production working state, the water inlet valve and the waste water valve are in an open state, tap water enters the filter element assembly through the tap water inlet pipe and is pressurized by the water pump, concentrated water is discharged from the waste water outlet pipe after being filtered by the filter element assembly, and pure water flows out through the pure water outlet pipe for life drinking;
s2: when the pure water outlet pipe is closed, pure water flows into the water storage tank under the action of the water pump, the piston is pushed by the pure water to move upwards, after the water storage tank is filled with the pure water, the piston moves to the top of the water storage tank, at the moment, water flow at the position of the flow meter does not flow, the flow meter sends out a signal, the water pump stops working, and the water inlet valve is closed;
s3: the running water starts to be injected into the water storage tank, the piston moves downwards under the action of the running water pressure, and the pure water is reversely injected into the filter element assembly for washing and is discharged from the waste water outlet pipe;
s4: and then opening the pure water outlet pipe again, and entering a normal water making state, wherein the first cup of water flowing out is the pure water.
The invention has the beneficial effects that: the technology of the invention not only solves the problem of poor quality of the first cup of water after the domestic drinking faucet is opened again, but also adopts a closed water storage tank mode, and a piston is arranged in the water storage tank, and pure water can be reversely injected into the filter element assembly for flushing by extruding the piston by tap water.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of a flushing method of a nanofiltration and reverse osmosis water purifier according to an embodiment of the present invention;
the main element symbols are as follows:
the device comprises a filter element assembly 1, a tap water inlet pipe 2, a water pump 3, a water inlet valve 4, a wastewater outlet pipe 5, a wastewater valve 6, a pure water outlet pipe 7, a flowmeter 8, a pure water storage pipe 9, a water storage tank 10, a piston 11, a tap water injection pipe 12 and a control switch 17.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1, the nanofiltration and reverse osmosis water purifier comprises a filter element assembly 1 installed in a water purifier body, wherein a tap water inlet pipe 2 is connected to the upper side of the filter element assembly 1, the tap water inlet pipe 2 is connected with a water pump 3 and a water inlet valve 4, a wastewater outlet pipe 5 is connected to the lower side of the filter element assembly 1, the wastewater outlet pipe 5 is connected with a wastewater valve 6, the filter element assembly 1 is connected with a pure water outlet pipe 7, the pure water outlet pipe 7 is connected with a flowmeter 8, the pure water outlet pipe 7 is connected with a pure water storage pipe 9, the pure water storage pipe 9 is connected with a water storage tank 10, a piston 11 is installed in the water storage tank 10, a tap water injection pipe 12 is connected to the top of the water storage tank 10, and the tap water injection pipe 12 is communicated with the tap water inlet pipe 2.
When the water purifier is used, in a normal water preparing working state, the water inlet valve 4 and the waste water valve 6 are opened, tap water enters from the tap water inlet pipe 2 and enters the filter element assembly 1 after being pressurized by the water pump 3, concentrated water is discharged from the waste water outlet pipe 5 after being filtered by the filter element assembly 1, pure water flows out for daily use through the pure water outlet pipe 7, when the pure water outlet pipe 7 is closed, the pure water flows into the water storage tank 10 along the pure water outlet pipe 7 under the action of the water pump 3, the pure water pushes the piston 11 in the water storage tank 10 to move upwards, after the water storage tank 10 is filled with the pure water, the piston 11 moves to the top of the water storage tank 10, at the moment, the water flow at the flowmeter 8 does not flow, the flowmeter 8 sends a signal, the water pump 3 stops working, the water pump 4 is closed, the tap water starts to be injected into the water storage tank 10, the piston 11 moves downwards under the action of the pressure of tap water, and reversely injects the tap water into the filter element assembly 1 to flush the water inlet valve, and is discharged from the waste water outlet pipe 5, and then the pure water outlet pipe 7 is opened again, the normal water making state is entered, and the first cup of water which flows out is the pure water.
Preferably, the water inlet and outlet of the tap water inlet pipe 2 and the pure water outlet pipe 7 are both connected with a control switch 17. The structure design is convenient for controlling water inlet and outlet. In fact, other control structure shapes of the tap water inlet pipe 2 and the pure water outlet pipe 7 can be considered according to specific situations.
Preferably, the piston 11 is connected with a wear-resistant sealing sleeve, and the wear-resistant sealing sleeve is attached to the inner wall of the water storage tank 10. The structural design makes the piston 11 more wear-resistant and durable while having better sealing effect. In fact, other configurations of the piston 11 are also contemplated, as the case may be.
Preferably, the water inlet valve 4 is the same as the waste water valve 6 in specification and model. The structural design is convenient to purchase and install. In fact, other configurations of the inlet valve 4 and waste valve 6 are also contemplated, depending on the particular application.
Preferably, the flow meter 8 is a turbine flow meter 8. The structural design enables the measuring precision of the flowmeter 8 to be higher. In fact, other configurations of the flow meter 8 are contemplated as appropriate.
A washing method of the nanofiltration and reverse osmosis water purifier based on any one of claims 1 to 5 is characterized in that: the method comprises the following steps:
s1: when the water purifier is in a normal water production working state, the water inlet valve 4 and the waste water valve 6 are in an open state, tap water enters the filter element assembly 1 through the tap water inlet pipe 2 and is pressurized through the water pump 3, concentrated water is discharged from the waste water outlet pipe 5 after being filtered by the filter element assembly 1, and pure water flows out through the pure water outlet pipe 7 for life drinking;
s2: when the pure water outlet pipe 7 is closed, pure water flows into the water storage tank 10 under the action of the water pump 3, the piston 11 is pushed by the pure water to move upwards, after the water storage tank 10 is filled with the pure water, the piston 11 moves to the top of the water storage tank 10, at the moment, water flow at the position of the flow meter 8 does not flow, the flow meter 8 sends a signal, the water pump 3 stops working, and the water inlet valve 4 is closed;
s3: running water starts to be injected into the water storage tank 10, the piston 11 moves downwards under the action of the pressure of the running water, pure water is reversely injected into the filter element assembly 1 for washing, and the pure water is discharged from the wastewater outlet pipe 5;
s4: and then the pure water outlet pipe 7 is opened again, the normal water making state is achieved, and the first cup of water which flows out is the pure water.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A nanofiltration and reverse osmosis water purifier is characterized in that: comprises a filter element component (1) arranged in a water purifier body, one side of the filter element component (1) is connected with a tap water inlet pipe (2), the tap water inlet pipe (2) is connected with a water pump (3) and a water inlet valve (4), the other side of the filter element component (1) is connected with a waste water outlet pipe (5), the waste water outlet pipe (5) is connected with a waste water valve (6), the filter element component (1) is connected with a pure water outlet pipe (7), the pure water outlet pipe (7) is connected with a flowmeter (8), the pure water outlet pipe (7) is connected with a pure water liquid storage pipe (9), the pure water liquid storage pipe (9) is connected with a water storage tank (10), a piston (11) is arranged in the water storage tank (10), the top of the water storage tank (10) is connected with a tap water injection pipe (12), the tap water injection pipe (12) is communicated with the tap water inlet pipe (2).
2. The nanofiltration and reverse osmosis water purifier according to claim 1, wherein: the water inlet and outlet of the tap water inlet pipe (2) and the pure water outlet pipe (7) are connected with control switches (17).
3. The nanofiltration and reverse osmosis water purifier according to claim 2, wherein: the piston (11) is connected with a wear-resistant sealing sleeve, and the wear-resistant sealing sleeve is attached to the inner wall of the water storage tank (10).
4. The nanofiltration and reverse osmosis water purifier according to claim 3, wherein: the water inlet valve (4) and the waste water valve (6) are the same in specification and model.
5. The nanofiltration and reverse osmosis water purifier according to claim 4, wherein: the flow meter (8) is a turbine flow meter (8).
6. A washing method of the nanofiltration and reverse osmosis water purifier based on any one of claims 1 to 5, which is characterized in that: the method comprises the following steps:
s1: when the water purifier is in a normal water production working state, the water inlet valve (4) and the waste water valve (6) are in an open state, tap water enters the filter element assembly (1) through the tap water inlet pipe (2) and is pressurized through the water pump (3), concentrated water is discharged from the waste water outlet pipe (5) after being filtered by the filter element assembly (1), and pure water flows out for life drinking through the pure water outlet pipe (7);
s2: when the pure water outlet pipe (7) is closed, pure water flows into the water storage tank (10) under the action of the water pump (3), the piston (11) is pushed by the pure water to move upwards, after the water storage tank (10) is filled with the pure water, the piston (11) moves to the top of the water storage tank (10), at the moment, water flow at the flowmeter (8) does not flow, the flowmeter (8) sends a signal, the water pump (3) stops working, and the water inlet valve (4) is closed;
s3: running water starts to be filled into the water storage tank (10), the piston (11) moves downwards under the action of the pressure of the running water, pure water is reversely filled into the filter element assembly (1) for washing, and the pure water is discharged from the wastewater outlet pipe (5);
s4: and then the pure water outlet pipe (7) is opened again, the normal water making state is achieved, and the first cup of water flowing out is the pure water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110070704.6A CN113694728A (en) | 2021-01-19 | 2021-01-19 | Flushing method of nanofiltration and reverse osmosis water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110070704.6A CN113694728A (en) | 2021-01-19 | 2021-01-19 | Flushing method of nanofiltration and reverse osmosis water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113694728A true CN113694728A (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110070704.6A Pending CN113694728A (en) | 2021-01-19 | 2021-01-19 | Flushing method of nanofiltration and reverse osmosis water purifier |
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| CN (1) | CN113694728A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804392A (en) * | 2022-06-02 | 2022-07-29 | 深圳市诚德来实业有限公司 | Water purifier and control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204529392U (en) * | 2015-03-04 | 2015-08-05 | 韩佳（上海）环保设备有限公司 | The large discharge of low TDS value is kept directly to drink machine |
| CN106186193A (en) * | 2016-08-25 | 2016-12-07 | 浙江沁园水处理科技有限公司 | Anti-penetration water purifier |
| CN108892263A (en) * | 2018-08-21 | 2018-11-27 | 深圳安吉尔饮水产业集团有限公司 | The water purification system and water purifier of TDS value after reduction reverse osmosis membrane water salt balance |
| CN112225335A (en) * | 2020-11-10 | 2021-01-15 | 贺小勤 | Full-effect purifying large-flux water purifier |
-
2021
- 2021-01-19 CN CN202110070704.6A patent/CN113694728A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204529392U (en) * | 2015-03-04 | 2015-08-05 | 韩佳（上海）环保设备有限公司 | The large discharge of low TDS value is kept directly to drink machine |
| CN106186193A (en) * | 2016-08-25 | 2016-12-07 | 浙江沁园水处理科技有限公司 | Anti-penetration water purifier |
| CN108892263A (en) * | 2018-08-21 | 2018-11-27 | 深圳安吉尔饮水产业集团有限公司 | The water purification system and water purifier of TDS value after reduction reverse osmosis membrane water salt balance |
| CN112225335A (en) * | 2020-11-10 | 2021-01-15 | 贺小勤 | Full-effect purifying large-flux water purifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804392A (en) * | 2022-06-02 | 2022-07-29 | 深圳市诚德来实业有限公司 | Water purifier and control method |
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