CN204841421U - Reverse osmosis unit - Google Patents
Reverse osmosis unit Download PDFInfo
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- CN204841421U CN204841421U CN201520588653.6U CN201520588653U CN204841421U CN 204841421 U CN204841421 U CN 204841421U CN 201520588653 U CN201520588653 U CN 201520588653U CN 204841421 U CN204841421 U CN 204841421U
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- reverse osmosis
- water tank
- osmosis membrane
- water
- pressure pump
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Abstract
The utility model discloses a reverse osmosis unit, including former water tank, former water tank is connected to the raw water booster pump, and the raw water booster pump is connected with the filter, and filter department is provided with by -pass line, is provided with the high -pressure pump on the pipeline that connects in parallel with by -pass line, by -pass line is connected to the check valve, and the check valve is connected to reverse osmosis membrane, and reverse osmosis membrane's an exit end is connected to the product water tank, and another exit end of reverse osmosis membrane is connected to thick water tank, the last salinity indicator that is provided with of thick water tank. The utility model discloses a reverse osmosis system opens, the system pressure is slow when shutting down rises and descends, has eliminated the high -pressure pump and has opened and stop causing the impact to the membrane system, has guaranteed normally washing of system, through the detection of the salt content to dense water among the thick water tank, control the water yield of dense water retrieval and utilization, the setting up of check valve has effectively avoided the air to backflow and the injury to reverse osmosis membrane of the high pressure in the twinkling of an eye that produces is opened to the high -pressure pump when stopping.
Description
Technical field
The utility model relates to water-treatment technology field, specifically a kind of reverse osmosis unit.
Background technology
Reverse osmosis unit utilizes the selective penetrated property principle of reverse osmosis membrane, when being greater than the pressure of naturally osmotic pressure to solution one, the flow direction of solvent is by contrary with original infiltration direction, start to flow from concentrated solution to weak solution side, in order to realize being separated of solute and solvent, this process is called counter-infiltration.
But in traditional reverse osmosis unit, between high pressure pump outlet and reverse osmosis membrane influent side, check valve is not set, backflow so air can be produced when high-pressure pump quits work, thus partial high pressure can be produced because of steam-water mixing when restarting or pneumatic hammer causes very large damage to reverse osmosis membrane; And the opening and closing speed of the magnetic valve be connected with the dense water side of reverse osmosis membrane quickly, the impulsive force that the moment of opening and closing causes film is very large, is easy to damage reverse osmosis membrane; In addition, the salt content of feed water by reverse osmosis also can the directly stable operation of influential system and the service life of reverse osmosis membrane; At present conventional concentrate recirculation technology, the water yield of concentrate recirculation and the ratio of the discharge water yield be not easy grasps best numerical value, capacity of returns is too large, can affect stable operation and the service life of equipment, and the water yield that refluxes is too little, effectively can not utilize water resource.
Summary of the invention
The purpose of this utility model is to provide a kind of reverse osmosis unit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of reverse osmosis unit, comprise raw water box, described raw water box is connected to former water booster pump, described former water booster pump is connected with filter, described filter place is provided with bypass line, bypass motor-driven valve is arranged on described bypass line, and bypass line is provided with flow measurement device, and the pipeline in parallel with bypass line is provided with high-pressure pump; Described bypass line is connected to check valve, described check valve is connected to reverse osmosis membrane, a port of export of described reverse osmosis membrane is connected to product water tank, another port of export of described reverse osmosis membrane is connected to dense water tank by control valve and flushing motor-driven valve two valves, described dense water tank is provided with salinometer, dense water booster pump one end is connected with dense water tank, and the other end is connected on the pipeline between filter and high-pressure pump.
As further program of the utility model: described dense water tank is also provided with concentrated water discharge valve.
Compared with prior art, the beneficial effects of the utility model are: the utility model achieves that counter-infiltration system leaves, system pressure slowly rises and declines when shutting down, eliminate high-pressure pump start and stop to impact membranous system, and the former water during flushing of system each startup-shutdown after pressurization is owing to entering reverse osmosis membrane by high-pressure pump and bypass motor-driven valve simultaneously, the corresponding increasing of intake tunnel, reduce the pressure requirements higher to former water, ensure that the normal flushing of system; And by detection to the salt content of water dense in dense water tank, control the water yield of NF concentrated water reuse, while the utilization rate improving water source to greatest extent, ensure stability and the effluent quality of the operation of counter-infiltration system, flexible operation, simple and convenient; In addition, the setting of check valve effectively prevent air and to backflow and high-pressure pump opens the instantaneous pressure that produces when stopping to the injury of reverse osmosis membrane, protects reverse osmosis membrane very well.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of reverse osmosis unit.
In figure: 1-raw water box, 2-former water booster pump, 3-filter, 4-high-pressure pump, 5-check valve, 6-bypass motor-driven valve, 7-flow measurement device, 8-bypass line, 9-reverse osmosis membrane, 10-product water tank, 11-control valve, 12-rinse motor-driven valve, the dense water tank of 13-, the dense water booster pump of 14-, 15-salinometer, 16-concentrated water discharge valve.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of reverse osmosis unit, comprise raw water box 1, described raw water box 1 is connected to former water booster pump 2, and described former water booster pump 2 is connected with filter 3, described filter 3 place is provided with bypass line 8, bypass motor-driven valve 6 is arranged on described bypass line 8, and bypass line 8 is provided with flow measurement device 7, the pipeline in parallel with bypass line 8 is provided with high-pressure pump 4; Described bypass line 8 is connected to check valve 5, described check valve 5 is connected to reverse osmosis membrane 9, a port of export of described reverse osmosis membrane 9 is connected to and produces water tank 10, another port of export of described reverse osmosis membrane 9 is connected to dense water tank 13 by control valve 11 and flushing motor-driven valve 12 two valves, described dense water tank 13 is provided with salinometer 15 and concentrated water discharge valve 16, dense water booster pump 14 one end is connected with dense water tank 13, and the other end is connected on the pipeline between filter 3 and high-pressure pump 4.
Operation principle of the present utility model is: former water enters raw water box 1, by entering filter 3 after the supercharging of former water booster pump 2, again through high-pressure pump 4 after granule foreign in filtering water, the bypass line 8 that high-pressure pump 4 place is arranged, when each device starts, bypass motor-driven valve 6 is in opening, former water after pressurization is owing to entering reverse osmosis membrane 9 by high-pressure pump 4 and bypass motor-driven valve 6 simultaneously, the corresponding increasing of intake tunnel, because this reducing the pressure requirements higher to former water, ensure that the normal flushing of system; Flushing terminates rear high-pressure pump 4 and starts, now most of water is refluxed by bypass motor-driven valve 6, therefore the pressure of system is very low, along with bypass motor-driven valve 6 slowly closing, backflow reduces gradually, and the intake pressure of membranous system also increases thereupon gradually, achieves the object of slow supercharging, until bypass motor-driven valve 6 cuts out completely, system brings into operation; When each system-down, bypass motor-driven valve 6 is slowly opened, along with bypass motor-driven valve 6 is slowly opened, backflow strengthens gradually, the intake pressure of membranous system also reduces thereupon gradually, achieve the object of slow step-down, until bypass motor-driven valve 6 open completely after high-pressure pump 4 shut down, system start rinse, rinse terminate rear system-down; Flow into reverse osmosis membrane 9 by check valve 3 afterwards to filter, the setting of check valve 5 avoid high-pressure pump 4 out of service when, air backflow when again starting, cause the high pressure of moment to cause damage to reverse osmosis membrane 9; The water that reverse osmosis membrane 9 filters enters and produces water tank 10, dense water enters dense water tank 13 by control valve 11 and the collection of rinsing motor-driven valve 12 two valves, dense water is by dense water booster pump 14, before arriving high-pressure pump 4, carry out process as the water inlet of reverse osmosis membrane 9 together with the former water after filtering with filter 3 and recycle; Salt content in dense water tank 13 is detected by salinometer 15, when the salt content of dense water arrives the higher limit of design, opens concentrated water discharge valve 16, after the concentrated water drainage sky in dense water tank 13, closes concentrated water discharge valve 16, continues to reclaim dense water.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (2)
1. a reverse osmosis unit, comprise raw water box (1), it is characterized in that, described raw water box (1) is connected to former water booster pump (2), described former water booster pump (2) is connected with filter (3), and described filter (3) place is provided with bypass line (8), and bypass motor-driven valve (6) is arranged on described bypass line (8), bypass line (8) is provided with flow measurement device (7), the pipeline in parallel with bypass line (8) is provided with high-pressure pump (4); Described bypass line (8) is connected to check valve (5), described check valve (5) is connected to reverse osmosis membrane (9), a port of export of described reverse osmosis membrane (9) is connected to and produces water tank (10), another port of export of described reverse osmosis membrane (9) is connected to dense water tank (13) by control valve (11) and flushing motor-driven valve (12) two valves, described dense water tank (13) is provided with salinometer (15), dense water booster pump (14) one end is connected with dense water tank (13), and the other end is connected on the pipeline between filter (3) and high-pressure pump (4).
2. a kind of reverse osmosis unit according to claim 1, is characterized in that, described dense water tank (13) is also provided with concentrated water discharge valve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588653.6U CN204841421U (en) | 2015-08-03 | 2015-08-03 | Reverse osmosis unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588653.6U CN204841421U (en) | 2015-08-03 | 2015-08-03 | Reverse osmosis unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204841421U true CN204841421U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520588653.6U Active CN204841421U (en) | 2015-08-03 | 2015-08-03 | Reverse osmosis unit |
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| Country | Link |
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| CN (1) | CN204841421U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800840A (en) * | 2016-04-15 | 2016-07-27 | 中国船舶重工集团公司第七0七研究所九江分部 | Electric desalting device adopting reverse-osmosis direct-connecting technology |
| CN109577923A (en) * | 2018-12-03 | 2019-04-05 | 重庆大学 | It is a kind of for measure coal-bed gas exploitation test when reverse irrigation amount device |
| CN109603560A (en) * | 2018-12-28 | 2019-04-12 | 煤科集团杭州环保研究院有限公司 | A kind of low pressure flushing therapy suitable for high-salt wastewater counter-infiltration system |
| CN112759097A (en) * | 2020-12-30 | 2021-05-07 | 3M材料技术（广州）有限公司 | Reverse osmosis filtration system |
-
2015
- 2015-08-03 CN CN201520588653.6U patent/CN204841421U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800840A (en) * | 2016-04-15 | 2016-07-27 | 中国船舶重工集团公司第七0七研究所九江分部 | Electric desalting device adopting reverse-osmosis direct-connecting technology |
| CN109577923A (en) * | 2018-12-03 | 2019-04-05 | 重庆大学 | It is a kind of for measure coal-bed gas exploitation test when reverse irrigation amount device |
| CN109603560A (en) * | 2018-12-28 | 2019-04-12 | 煤科集团杭州环保研究院有限公司 | A kind of low pressure flushing therapy suitable for high-salt wastewater counter-infiltration system |
| CN112759097A (en) * | 2020-12-30 | 2021-05-07 | 3M材料技术（广州）有限公司 | Reverse osmosis filtration system |
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