CN216614217U - Reverse osmosis water purifier - Google Patents
Reverse osmosis water purifier Download PDFInfo
- Publication number
- CN216614217U CN216614217U CN202122703737.8U CN202122703737U CN216614217U CN 216614217 U CN216614217 U CN 216614217U CN 202122703737 U CN202122703737 U CN 202122703737U CN 216614217 U CN216614217 U CN 216614217U
- Authority
- CN
- China
- Prior art keywords
- water
- activated carbon
- membrane
- pressure
- reverse osmosis
- 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.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000012528 membrane Substances 0.000 claims abstract description 27
- 239000002351 wastewater Substances 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims abstract description 6
- 239000004743 Polypropylene Substances 0.000 claims 2
- 239000008187 granular material Substances 0.000 claims 1
- -1 polypropylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 239000008213 purified water Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 239000012466 permeate Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The reverse osmosis water purifier washes the RO membrane by the forward and reverse pure water, solves the problem that the water quality is reduced due to the bidirectional permeation of the concentrated water and the pure water at the two ends of the RO membrane during the shutdown period of the reverse osmosis water purifier with the barrel, protects the RO membrane, and has simple and reliable structure. The water inlet part comprises a PP cotton, granular activated carbon and a compressed activated carbon front three-stage filter element, a low-pressure switch, a water inlet electromagnetic valve, a booster pump, an RO filter membrane, a wastewater electromagnetic valve and a water outlet side comprise a pressure water storage barrel, a high-pressure switch and rear activated carbon, and a water outlet of the pressure water storage barrel is connected to the booster pump through a one-way valve.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a method for solving the problem that the two-way permeation of concentrated water and pure water at two ends of an RO membrane causes the water quality to be reduced.
Background
When the water purifier stops working, the water inlet system of the water purifier is closed, and the booster pump of the water purifier stops working synchronously. However, in this case, a part of purified water (also referred to as "pure water") and concentrated water are left in the RO membrane shell and are not discharged. In view of the principle that the water purifier is subjected to physical filtration and interception, under the condition of no external pressure, because osmotic pressure difference exists between the concentrated water and the pure water in the reverse osmosis membrane shell, a bidirectional osmosis process can be generated, namely the pure water permeates towards the concentrated water side and the concentrated water permeates towards the pure water side. Along with the extension of the two-way permeation time, the concentration of the purified water in the membrane is gradually increased until the two sides are balanced, the permeation pressure difference is stable, then the TDS values of the purified water and the concentrated water are almost kept unchanged, the purified water is polluted under the condition, and meanwhile, the RO filter membrane is easy to crystallize and block in a high-concentration water environment for a long time.
Disclosure of Invention
The invention aims at the technical current situation and adopts the reverse osmosis water purifier with simple structure and obviously improved effect.
The technical scheme includes that a water inlet part of the reverse osmosis water purifier comprises PP cotton, granular activated carbon, a front three-stage filter element of compressed activated carbon, a low-pressure switch, a water inlet electromagnetic valve, a booster pump, an RO filter membrane, a wastewater electromagnetic valve and a water outlet side, wherein a pressure water storage barrel, a high-pressure switch and rear activated carbon are arranged on the water outlet side, and a water outlet of the pressure water storage barrel is connected to the high-pressure side of the booster pump through a one-way valve.
The invention has the technical effects that: compared with the prior art, 1, connect the solenoid valve of intaking through setting up the check valve at pressure water storage bucket delivery port, utilize the pure water forward and reverse to wash the RO membrane to let the waste water solenoid valve time delay close with waste water discharge, make RO membrane filter core front and back be the pure water, prevented the pure water pollution, and effectively protected the RO membrane.
Drawings
The attached figure 1 is a structure diagram of the scheme, and comprises a tap water inlet (1), a PP cotton filter element (2), granular activated carbon (3), compressed activated carbon (4), a low-pressure switch (5), a water inlet electromagnetic valve (6), a booster pump (7), an RO filter membrane (8), a wastewater electromagnetic valve (9), a pressure water storage barrel (10), a check valve (11), a high-pressure switch (12), rear activated carbon (13) and a pure water outlet (14).
Detailed Description
The following description will be made in detail with reference to the accompanying drawings showing preferred embodiments of the present invention, wherein the following parts are connected by pipes, and the arrows of the check valves indicate the flowing direction of water.
As shown in the attached drawing 1, the reverse osmosis water purifier comprises a tap water inlet (1), a PP cotton filter element (2), granular activated carbon (3), compressed activated carbon (4), a low-voltage switch (5), a water inlet electromagnetic valve (6), a booster pump (7) and an RO filter membrane (8) which are sequentially connected, wherein a wastewater electromagnetic valve (9) is connected to a concentrated water side of the RO filter membrane, the water outlet side of the RO filter membrane comprises a pressure water storage barrel (10) and a high-voltage switch (12), post-positioned activated carbon (13) and a pure water outlet (14), and the pressure water storage barrel (10) is connected with the booster pump (7) through a one-way valve (11).
The reverse osmosis water purifier comprises the following working processes: the machine starts to work after being powered on, the water of a tap water inlet (1) passes through a PP cotton filter element (2), granular activated carbon (3) and compressed activated carbon (4) through a pipeline and then enters an RO filter membrane (8) after passing through a low-voltage switch (5), a water inlet electromagnetic valve (6) and a booster pump (7), the produced pure water enters a pressure water storage barrel (10) on one hand, and on the other hand, the produced pure water is filtered to a water outlet (14) through a high-voltage switch (12) and a post-positioned activated carbon (13) and flows out, after the pure water outlet is closed, the pressure pump works to the action of the high-voltage switch, when the pressure pump is closed, the waste water electromagnetic valve is continuously kept open for a period of time, and by utilizing the pressure difference, the pure water can reach the water inlet side of the RO filter membrane through a one-way valve (11) and is replaced with the concentrated water, because the pressure of the concentrated water outlet is low, namely the RO membrane is positively and negatively flushed, and after the replacement is completed, the wastewater solenoid valve is closed. And finally, pure water is filled in the front and the back of the RO membrane filter element, so that the water quality of the water outlet of the water purifier is ensured, the crystallization problem caused by soaking the RO membrane in high-concentration water is prevented, the RO membrane is effectively protected, and the service life of the RO membrane is prolonged.
Although the present invention has been described in detail with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (2)
1. A reverse osmosis water purifier is characterized in that: including consecutive running water inlet (1), the cotton filter core of PP (polypropylene) (2), granule activated carbon (3), compressed activated carbon (4), low pressure switch (5), intake solenoid valve (6), booster pump (7), RO filter membrane (8), the thick water side of RO filter membrane is connected with waste water solenoid valve (9), goes out the water side and includes a pressure water storage bucket (10) and high tension switch (12), rearmounted activated carbon (13), pure water outlet (14), wherein pressure water storage bucket (10) link to each other through a check valve (11) and booster pump (7) high pressure side.
2. A reverse osmosis water purification machine according to claim 1, wherein: a waste water electromagnetic valve (9) connected with a concentrated water outlet of the RO membrane filter element is a time-delay closing electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122703737.8U CN216614217U (en) | 2021-11-08 | 2021-11-08 | Reverse osmosis water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122703737.8U CN216614217U (en) | 2021-11-08 | 2021-11-08 | Reverse osmosis water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216614217U true CN216614217U (en) | 2022-05-27 |
Family
ID=81694594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122703737.8U Expired - Fee Related CN216614217U (en) | 2021-11-08 | 2021-11-08 | Reverse osmosis water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216614217U (en) |
-
2021
- 2021-11-08 CN CN202122703737.8U patent/CN216614217U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |