CN203370465U - Backpressure prevention device of reverse osmosis system - Google Patents
Backpressure prevention device of reverse osmosis system Download PDFInfo
- Publication number
- CN203370465U CN203370465U CN201320306076.8U CN201320306076U CN203370465U CN 203370465 U CN203370465 U CN 203370465U CN 201320306076 U CN201320306076 U CN 201320306076U CN 203370465 U CN203370465 U CN 203370465U
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- Prior art keywords
- reverse osmosis
- water pipe
- osmosis membrane
- backpressure
- fresh water
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Abstract
The utility model discloses a backpressure prevention device of a reverse osmosis system. According to the backpressure prevention device, a backpressure prevention valve is arranged on a fresh water pipe of the reverse osmosis system; raw water enters a reverse osmosis membrane after being pressurized; part of the water flows into a concentrated water pipe along the concentrated water side of the reverse osmosis membrane to be discharged, and most of the water enters the fresh water pipe on the fresh water side through the reverse osmosis membrane; an anti-explosion membrane, a unidirectional valve and a backpressure prevention valve are sequentially arranged on the fresh water pipe. The backpressure prevention device provided by the utility model has the beneficial effects that due to the backpressure prevention valve, the phenomenon of backpressure impact caused by normal shutdown or accidental shutdown of the system is avoided, and the normal use of the reverse osmosis membrane is guaranteed.
Description
Technical field
The utility model relates to the Reverse Osmosis Water Treatment Technology application, particularly the anti-back pressure apparatus of a kind of counter-infiltration system.
Background technology
In counter-infiltration system, the anti-back pressure apparatus of the counter-infiltration system of design is only installed rupture disk and check valve usually.When system orderly closedown or disorderly closedown, the dilute side pressure of counter-infiltration tends to, higher than the feedwater lateral pressure, form back pressure, and back pressure can cause the irrecoverable physical injury of reverse osmosis membrane.The effect of check valve is that it stops the dilute side current dilute side of the pressure reversal impact reverse osmosis membrane of avoiding the dilute side current.If fresh water need to be to high-level tank water, now impulsive force can be larger, and easily cause check valve to damage the back-pressure protection effect that loses.
The effect of rupture disk is automatic-explosion after dilute side pressure is higher than setting value, plays the effect of protection counter-infiltration, but all needs again to change rupture disk after every separate explosion.The normal use of system will be affected.
Summary of the invention
The purpose of this utility model is in order to address the above problem, and has designed the anti-back pressure apparatus of a kind of counter-infiltration system.
Realize that the above-mentioned purpose the technical solution of the utility model is, a kind of counter-infiltration system is prevented back pressure apparatus, be included on the counter-infiltration system fresh water pipe anti-counterbalance valve is installed, former water after pressurization enters reverse osmosis membrane, part water emits after the dense water side flow of reverse osmosis membrane enters dense water pipe, and most of water enters the fresh water pipe of dilute side through reverse osmosis membrane, rupture disk, check valve, anti-counterbalance valve are installed on fresh water pipe successively.
The anti-back pressure apparatus of the counter-infiltration system that utilizes the technical solution of the utility model to make, should open by anti-counterbalance valve while having realized counter-infiltration system orderly closedown or fault automatically, and dilute side pressure is instantaneous to be released, and has stopped the generation of back pressure phenomenon.Check valve, outside the barrier as the second back-pressure protection, also plays and guarantees that dilute side possesses certain water yield air can not be entered, and rupture disk is as the barrier of last together anti-back-pressure protection.Because the suffered impulsive force of check valve does not almost have, will greatly improve its service life, and the replacement frequency of rupture disk is reduced to zero basically.
The accompanying drawing explanation
Fig. 1 is the structural representation of the anti-back pressure apparatus of counter-infiltration system described in the utility model;
In figure, 1, Yuan Shui; 2, reverse osmosis membrane apparatus; 3, dense water side; 4, dense water pipe; 5, dilute side; 6, fresh water pipe; 7, rupture disk; 8, check valve; 9 anti-counterbalance valves.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is specifically described, Fig. 1 is the structural representation of the anti-back pressure apparatus of counter-infiltration system described in the utility model.As shown in the figure, a kind of counter-infiltration system is prevented back pressure apparatus, former water (1) after pressurization enters reverse osmosis membrane (2), part water emits after the dense water side of reverse osmosis membrane (3) flows into dense water pipe (4), and most of water sees through the fresh water pipe (6) that reverse osmosis membrane enters dilute side (5), rupture disk (7), check valve (8), anti-counterbalance valve (9) are installed on fresh water pipe successively.
The technical program is that rupture disk, check valve, anti-counterbalance valve are installed successively on the fresh water pipe of counter-infiltration system.When every subsystem orderly closedown or disorderly closedown, anti-counterbalance valve is automatically opened the pressure of dilute side is discharged fully, has stopped the appearance of back pressure phenomenon fully, and when system is moved, anti-counterbalance valve cuts out, and system is produced water running.
Check valve, outside the barrier as the second back-pressure protection, also plays and guarantees that dilute side possesses certain water yield air can not be entered, and rupture disk is as the barrier of last together anti-back-pressure protection.Because the suffered impulsive force of check valve does not almost have, will greatly improve its service life, and the replacement frequency of rupture disk is reduced to zero basically.
Technique scheme has only embodied the optimal technical scheme of technical solutions of the utility model; those skilled in the art have all embodied principle of the present utility model to some changes that wherein some part may be made, within belonging to protection domain of the present utility model.
Claims (1)
1. a counter-infiltration system is prevented back pressure apparatus, be included on the counter-infiltration system fresh water pipe anti-counterbalance valve (9) is installed, it is characterized in that, former water (1) after pressurization enters reverse osmosis membrane (2), part water emits after the dense water side of reverse osmosis membrane (3) flows into dense water pipe (4), and most of water sees through the fresh water pipe (6) that reverse osmosis membrane enters dilute side (5), rupture disk (7), check valve (8), anti-counterbalance valve (9) are installed on fresh water pipe (6) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320306076.8U CN203370465U (en) | 2013-05-31 | 2013-05-31 | Backpressure prevention device of reverse osmosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320306076.8U CN203370465U (en) | 2013-05-31 | 2013-05-31 | Backpressure prevention device of reverse osmosis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203370465U true CN203370465U (en) | 2014-01-01 |
Family
ID=49833022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320306076.8U Expired - Fee Related CN203370465U (en) | 2013-05-31 | 2013-05-31 | Backpressure prevention device of reverse osmosis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203370465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106608690A (en) * | 2016-12-16 | 2017-05-03 | 杭州金鱼电器集团有限公司 | RO membrane water purifier anti-backpressure structure |
| CN107308817A (en) * | 2017-07-19 | 2017-11-03 | 安徽三品技术服务有限公司 | Water purifier reverse-osmosis-prevention device and its water purifier |
-
2013
- 2013-05-31 CN CN201320306076.8U patent/CN203370465U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106608690A (en) * | 2016-12-16 | 2017-05-03 | 杭州金鱼电器集团有限公司 | RO membrane water purifier anti-backpressure structure |
| CN107308817A (en) * | 2017-07-19 | 2017-11-03 | 安徽三品技术服务有限公司 | Water purifier reverse-osmosis-prevention device and its water purifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20190531 |