CN203173869U - Low-pressure water-saving reverse osmosis system - Google Patents
Low-pressure water-saving reverse osmosis system Download PDFInfo
- Publication number
- CN203173869U CN203173869U CN 201320243696 CN201320243696U CN203173869U CN 203173869 U CN203173869 U CN 203173869U CN 201320243696 CN201320243696 CN 201320243696 CN 201320243696 U CN201320243696 U CN 201320243696U CN 203173869 U CN203173869 U CN 203173869U
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Abstract
The utility model belongs to the field of water treatment equipment, and particularly relates to a low-pressure water-saving reverse osmosis system. The reverse osmosis system comprises a pretreatment device, a high pressure pump, a reverse osmosis membrane component and a producing water tank which are connected sequentially by pipelines, wherein the reverse osmosis membrane component is provided with a thick water discharge pipeline; a thick water return pipeline is led out of the thick water discharge pipeline to the high pressure pump; a conductometer and a three-way changeover valve are arranged between the reverse osmosis membrane component and the producing water tank; the three-way changeover valve is connected with a producing water pipeline and a producing water return pipeline respectively; the other end of the producing water return pipeline is connected with the high pressure pump; and a producing water return control valve is arranged on the producing water return pipeline. According to the low-pressure water-saving reverse osmosis system, thick water is controlled and recycled; a great quantity of water sources are saved; unqualified producing water is returned to a reverse osmosis membrane to be refiltered, so that the problems of great working pressure and high probability of membrane element blocking caused by thick water recycling are solved; and the quality of the producing water is improved greatly.
Description
Technical field
The utility model belongs to the water treating equipment field, relates in particular to a kind of low pressure saving type RO system.
Technical background
Reverse osmosis technology is present widely used a kind of pure water preparation technology, its principle is under the effect that is higher than solution osmotic pressure, can not see through semi-permeable membranes and these materials and water sepn are come according to other materials, can remove dissolved salts in the water, colloid, microorganism, organism etc. effectively.Conventional technology not only will discharge a large amount of dense water, and water process energy consumption processed is higher in the process of preparation pure water.The cost that reduces water mainly is to regulate the rate of recovery, but inappropriate rate of recovery adjusting can cause following problem: 1, awp is excessive in the reverse osmosis membrane, causes the damage of membrane element; 2, membrane element stops up, and water production rate reduces, and water circulation system needs frequent backwash; 3, produce the water deteriorating water quality.
The utility model content
The purpose of this utility model provides a kind of low pressure saving type RO system, make the controlled reuse of dense water, saved great amount of water resources, refilter before simultaneously defective product water being returned reverse osmosis membrane, alleviate that the operating pressure that dense water reuse causes is big, the easy problem such as obstruction of membrane element, improved product water water quality greatly.
For solving above technical problem, the technical solution adopted in the utility model is as follows: low pressure saving type RO system, comprise the pretreatment unit that connects successively by pipeline, high-pressure pump, reverse osmosis membrane assembly and product water tank, described reverse osmosis membrane assembly also is provided with the concentrated water discharge pipeline, draw on the described concentrated water discharge pipeline and pick out a concentrate recirculation pipeline to high-pressure pump, the concentrate recirculation pipeline is provided with the concentrate recirculation control valve, the concentrated water discharge pipeline is provided with dense water regulating valve and the flushing bleed valve that is connected in parallel, also be provided with the concentrated water discharge valve on the concentrated water discharge pipeline, it is characterized in that: be provided with conductivity meter and three-way change-over valve between described reverse osmosis membrane assembly and the product water tank, described three-way change-over valve connects the water producing pipe road respectively and produces the water return line, before the described product water return line the other end is connected to high-pressure pump, produces also to be provided with on the return line and produce the water recycle control valve.
As preferably, also comprise the PLC Controlling System, described PLC Controlling System is controlled the connecting pipeline of three-way change-over valve by the reading of conductivity meter.
The beneficial effects of the utility model are: with the reverse osmosis concentrated water partial reflux, control dense water regulating valve and concentrate recirculation control valve, control concentrate recirculation amount, saved great amount of water resources, refilter before simultaneously defective product water being returned reverse osmosis membrane, alleviate problems such as dense water reuse is big to the working pressure that reverse osmosis membrane assembly causes, membrane element easily stops up, fragile, improved product water water quality greatly, reached the purpose that reduces working pressure and water saving.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Embodiment
As shown in Figure 1, low pressure saving type RO system, comprise the pretreatment unit 1 that connects successively by pipeline, high-pressure pump 2, reverse osmosis membrane assembly 3 and product water tank 4, reverse osmosis membrane assembly 3 also is provided with concentrated water discharge pipeline 7, draw on the concentrated water discharge pipeline 7 and pick out a concentrate recirculation pipeline 8 to high-pressure pump 2, concentrate recirculation pipeline 8 is provided with concentrate recirculation control valve 9, concentrated water discharge pipeline 7 is provided with dense water regulating valve 10 and the flushing bleed valve 11 that is connected in parallel, also be provided with concentrated water discharge valve 12 on the concentrated water discharge pipeline 7, be provided with conductivity meter 13 and three-way change-over valve 14 between reverse osmosis membrane assembly 3 and the product water tank 4, three-way change-over valve 14 connects water producing pipe road 5 respectively and produces water return line 6, before product water return line 6 the other ends are connected to high-pressure pump 2, produce also to be provided with on the return line 6 and produce water recycle control valve 15.
Water after pretreatment unit 1 is handled is delivered to reverse osmosis membrane assembly 3 through high-pressure pump 2, qualified fresh water multiparity water lines 5 after the advanced treatment is sent into and is produced water tank 4, before defective fresh water multiparity water return line 6 is back to high-pressure pump 2, water producing pipe road 5 is provided with conductivity meter 13 and three-way change-over valve 14, system also comprises the PLC Controlling System, the PLC Controlling System is controlled the connecting pipeline of three-way change-over valve 14 by the reading of conductivity meter 13, when conductivity meter 13 readings are shown as qualified fresh water, then three-way change-over valve 14 is communicated with water producing pipe road 5, conductivity meter 13 readings are shown as defective fresh water, and then three-way change-over valve 14 is communicated with product water return line 6.The dense water that reverse osmosis membrane assembly 3 produces is after dense water regulating valve 10 is regulated, part is through 7 dischargings of concentrated water discharge pipeline, part is before concentrate recirculation pipeline 8 is back to high-pressure pump 2, dense water regulating valve 10 and concentrate recirculation control valve 9 be used for regulating concentrated water drainage high-volume with the concentrate recirculation amount, produce water recycle control valve 15 and be used for regulating and produce the water quantity of reflux.
Claims (2)
1. low pressure saving type RO system, comprise the pretreatment unit that connects successively by pipeline, high-pressure pump, reverse osmosis membrane assembly and product water tank, described reverse osmosis membrane assembly also is provided with the concentrated water discharge pipeline, draw on the described concentrated water discharge pipeline and pick out a concentrate recirculation pipeline to high-pressure pump, the concentrate recirculation pipeline is provided with the concentrate recirculation control valve, the concentrated water discharge pipeline is provided with dense water regulating valve and the flushing bleed valve that is connected in parallel, also be provided with the concentrated water discharge valve on the concentrated water discharge pipeline, it is characterized in that: be provided with conductivity meter and three-way change-over valve between described reverse osmosis membrane assembly and the product water tank, described three-way change-over valve connects the water producing pipe road respectively and produces the water return line, before the described product water return line the other end is connected to high-pressure pump, produces also to be provided with on the return line and produce the water recycle control valve.
2. low pressure saving type RO according to claim 1 system, it is characterized in that: also comprise the PLC Controlling System, described PLC Controlling System is controlled the connecting pipeline of three-way change-over valve by the reading of conductivity meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320243696 CN203173869U (en) | 2013-04-17 | 2013-04-17 | Low-pressure water-saving reverse osmosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320243696 CN203173869U (en) | 2013-04-17 | 2013-04-17 | Low-pressure water-saving reverse osmosis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203173869U true CN203173869U (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320243696 Expired - Fee Related CN203173869U (en) | 2013-04-17 | 2013-04-17 | Low-pressure water-saving reverse osmosis system |
Country Status (1)
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| CN (1) | CN203173869U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553183A (en) * | 2013-11-14 | 2014-02-05 | 戈亮 | Desalting device with high recovery rate |
| CN104548938A (en) * | 2014-12-03 | 2015-04-29 | 长沙中联重科环卫机械有限公司 | Membrane component pressure protection structure, reverse osmosis system and sewage treatment equipment |
| CN105502720A (en) * | 2016-01-19 | 2016-04-20 | 董伟 | Intelligent seawater and rainwater purification system |
| CN105502580A (en) * | 2016-01-12 | 2016-04-20 | 江苏沁尔康环境电器有限公司 | Water purifier |
| CN106145263A (en) * | 2015-04-28 | 2016-11-23 | 至砾机电设备（上海）有限公司 | A kind of reverse osmosis concentrated reusing device for waste water and method |
| CN113003660A (en) * | 2021-02-07 | 2021-06-22 | 楚天华通医药设备有限公司 | Pharmaceutical water system, purified water preparation device and online active concentrated water recycling module |
| CN114162995A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
-
2013
- 2013-04-17 CN CN 201320243696 patent/CN203173869U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553183A (en) * | 2013-11-14 | 2014-02-05 | 戈亮 | Desalting device with high recovery rate |
| CN104548938A (en) * | 2014-12-03 | 2015-04-29 | 长沙中联重科环卫机械有限公司 | Membrane component pressure protection structure, reverse osmosis system and sewage treatment equipment |
| CN106145263A (en) * | 2015-04-28 | 2016-11-23 | 至砾机电设备（上海）有限公司 | A kind of reverse osmosis concentrated reusing device for waste water and method |
| CN105502580A (en) * | 2016-01-12 | 2016-04-20 | 江苏沁尔康环境电器有限公司 | Water purifier |
| CN105502720A (en) * | 2016-01-19 | 2016-04-20 | 董伟 | Intelligent seawater and rainwater purification system |
| CN113003660A (en) * | 2021-02-07 | 2021-06-22 | 楚天华通医药设备有限公司 | Pharmaceutical water system, purified water preparation device and online active concentrated water recycling module |
| CN114162995A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and 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 |
Granted publication date: 20130904 Termination date: 20210417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |