CN201240893Y - Water-saving reverse osmosis unit - Google Patents
Water-saving reverse osmosis unit Download PDFInfo
- Publication number
- CN201240893Y CN201240893Y CNU2008200876275U CN200820087627U CN201240893Y CN 201240893 Y CN201240893 Y CN 201240893Y CN U2008200876275 U CNU2008200876275 U CN U2008200876275U CN 200820087627 U CN200820087627 U CN 200820087627U CN 201240893 Y CN201240893 Y CN 201240893Y
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- reverse osmosis
- membrane device
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Abstract
The utility model discloses a water-saving reverse osmosis water purifier, comprising a raw water tank, a first grade high-pressure pump and a first grade reverse osmosis membrane device; two outlet are arranged on the first grade reverse osmosis membrane device, wherein, one outlet is connected to a water producing tank by a pipeline; the water purifier is characterized in that: the other outlet is connected to a nano-filtration membrane device by a discharging passage, a sewage draining exit and a pipeline connected in the raw water tank are arranged on the nano-filtration membrane device. As the structure is adopted, the original waste water of the reverse osmosis concentrated water which is all discharged is changed into that: the waste water is treated by nano-filtration membrane, the producing water is recycled to the raw water tank, then the nano-filtration concentrated water is discharged; thus improving recycling utilization rate and reducing pollution.
Description
Technical field
The utility model relates to a kind of reverse osmosis unit, especially a kind of water saving reverse osmosis device.
Background technology
Reverse osmosis unit is a kind of common tripping device in engineering of water treatment.Infiltration is a kind of separation method that by means of the selection crown_interception of semi-permeable membranes solute in the solution and solvent is separated under pressure-driven, and the semi-permeable membranes aperture is greatly about 5～10A.And the reverse osmosis technology principle is under the effect that is higher than solution osmotic pressure, can not and these materials and water sepn be come through semi-permeable membranes according to other materials, be mainly used in the removal of the impurity such as mineral ion, bacterium, virus, organism and colloid in the former water, to obtain high-quality pure water.And to reach comparatively ideal product water flux and decreasing ratio, except that be stressed, the influences such as temperature, water inlet saltiness and pH value, feedwater transforms into the percentage that produces water or see through liquid in the film system, promptly the rate of recovery is vital factor.The dense water of conventional reverse osmosis water generates all is not utilized and directly discharging, and the rate of recovery maximum of former water only is 75%, has not only wasted great amount of water resources, and environment also can be subjected to certain pollution.
The utility model content
The purpose of the utility model saving type RO pure water device is to reduce production costs for undergoing technological transformation on the coventional type reverse osmosis basis, and improves former water recovery utilization rate greatly, saves the water source simultaneously, reduces and pollutes.
For reaching described purpose, the saving type RO pure water device, comprise the raw water box that connects successively by pipeline, the one-level high-pressure pump, first-stage reverse osmosis film device, first-stage reverse osmosis film device are provided with two outlets, and one of them outlet is arrived by pipe connection and produced water tank, it is characterized in that: another outlet is connecting the nanofiltration membrane device through discharge-channel, and the nanofiltration membrane device is provided with sewage draining exit and the pipeline that is connected back in the raw water box.
Preferably, be connected on the pipeline of nanofiltration membrane device and be not provided with high-pressure pump, by the raw water box of pipe connection.Such structure makes whole flow process not need extra external force, has reduced production cost, has improved production efficiency.
Owing to adopted described structure, the utility model is whole dischargings of the original waste water of reverse osmosis concentrated water, changes into all after nanofiltration membrane treatment, produces water and is back to use in the raw water box, and the dense water of nanofiltration discharges again.Improve recovery utilization rate, reduced pollution.
Description of drawings
Invention is described further with embodiment below in conjunction with accompanying drawing:
Fig. 1 is the utility model saving type RO pure water device overall structure synoptic diagram.
Embodiment
As shown in Figure 1, the saving type RO pure water device, comprise the raw water box 3 that connects successively by pipeline 2, one-level high-pressure pump 5, first-stage reverse osmosis film device 7, first-stage reverse osmosis film device 7 are provided with two outlets, and one of them outlet is connected to by pipeline 2 and produces water tank 9, it is characterized in that: another outlet is connecting nanofiltration membrane device 11 through discharge-channel 12, and nanofiltration membrane device 11 is provided with sewage draining exit 13 and the pipeline 2 that is connected back in the raw water box 3.
When using the utility model saving type RO pure water device, send into raw water box 3 as former water 1 through pipeline 2 from the pretreated water that pretreatment system obtains, former water 1 is sent into reverse osmosis membrane apparatus 7 by raw water box 3 and one-level high-pressure pump 5, after first-stage reverse osmosis device 7 is handled, output water is sent pure water case 9, the dense water of output is sent into nanofiltration device 11, nanofiltration is produced water and is back to raw water box 3, described nanofiltration membrane device 11 is connected on the reverse osmosis concentrated water discharge spout 12, and the dense water of nanofiltration directly enters sewage draining exit 13 by nanofiltration membrane device 11.
Different with common reverse osmosis unit, the utility model saving type RO pure water device is connected on the discharge-channel 12 of nanofiltration membrane device 11 and is not provided with high-pressure pump but current are filtered by common hydraulic pressure.Such structure makes whole flow process not need extra external force, has reduced production cost, has improved production efficiency.
Be the utility model and common first-stage reverse osmosis device condition of production synopsis below:
Can find out from last table, under identical former water and product water condition, use ultrafiltration filter membrane processing reverse osmosis concentrated water and can make the reverse osmosis rate of recovery reach 3 ÷ 3.25=92.3%; The utility model can make the concentrated water drainage of system high-volume only account for about 25% of conventional exhaust amount; And saltiness is the former water of 200mg/L, the dense water saltiness of discharging after reverse osmosis membrane processing is 4 * 200-3 * 3% * 200=788mg/L, these dense water advance nanofiltration device entirely, just can be equal to or less than former water saltiness through the product water saltiness after the nanofiltration membrane treatment again, ratio of desalinization as present nanofiltration membrane is 80%, and then to produce that water power leads be 20% * (4 * 200-3 * 3% * 200)=157.6mg/L in nanofiltration.Can not pollute after the discharging environment yet.
Through facts have proved, under the raw water quality same case, the using nanofiltration film is handled reverse osmosis concentrated water and is refluxed, and the reverse osmosis rate of recovery is reached more than 93.7%, and the concentrated water drainage of system has high-volume reduced 25% on the basis of conventional exhaust amount in the past., nanofiltration membrane is produced the water saltiness and is reached or be lower than former water saltiness.Reduction by a relatively large margin production cost, saved former water resources, protected environment.
Claims (2)
1, saving type RO pure water device, comprise the raw water box (3) that connects successively by pipeline (2), one-level high-pressure pump (5), first-stage reverse osmosis film device (7), first-stage reverse osmosis film device (7) is provided with two outlets, one of them outlet is connected to by pipeline (2) and produces water tank (9), it is characterized in that: another outlet is passed through discharge-channel (12) and is being connected nanofiltration membrane device (11), and nanofiltration membrane device (11) is provided with sewage draining exit (13) and is connected back to pipeline (2) in the raw water box (3).
2, water saving reverse osmosis device according to claim 1 is characterized in that: be connected on the discharge-channel (12) of nanofiltration membrane device (11) and do not establish high-pressure pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200876275U CN201240893Y (en) | 2008-05-22 | 2008-05-22 | Water-saving reverse osmosis unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200876275U CN201240893Y (en) | 2008-05-22 | 2008-05-22 | Water-saving reverse osmosis unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201240893Y true CN201240893Y (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200876275U Expired - Fee Related CN201240893Y (en) | 2008-05-22 | 2008-05-22 | Water-saving reverse osmosis unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201240893Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935111A (en) * | 2010-08-26 | 2011-01-05 | 宝钢工程技术集团有限公司 | Wastewater recycling preparation system with low energy consumption |
| CN102408171A (en) * | 2010-09-25 | 2012-04-11 | 中国石油化工股份有限公司 | Method for treating reverse osmosis concentrated water |
| CN104944527A (en) * | 2015-06-12 | 2015-09-30 | 江苏新美星包装机械股份有限公司 | Water purifying process |
| CN105905984A (en) * | 2016-07-07 | 2016-08-31 | 厦门市天泉鑫膜科技股份有限公司 | Deep treatment method of effluent produced by membrane bio-reactor (MBR) technology |
| CN106731115A (en) * | 2016-12-06 | 2017-05-31 | 中冶京诚工程技术有限公司 | A kind of waterpower self-cleaning filter |
| CN110498480A (en) * | 2019-09-21 | 2019-11-26 | 佛山市云米电器科技有限公司 | A kind of split type reverse osmosis filter element device and a kind of water purifier |
| 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 |
| CN114031197A (en) * | 2021-11-10 | 2022-02-11 | 湖南清渟科技有限公司 | Water-saving reverse osmosis direct drinking machine |
-
2008
- 2008-05-22 CN CNU2008200876275U patent/CN201240893Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935111A (en) * | 2010-08-26 | 2011-01-05 | 宝钢工程技术集团有限公司 | Wastewater recycling preparation system with low energy consumption |
| CN101935111B (en) * | 2010-08-26 | 2012-12-19 | 宝钢工程技术集团有限公司 | Wastewater recycling preparation system with low energy consumption |
| CN102408171A (en) * | 2010-09-25 | 2012-04-11 | 中国石油化工股份有限公司 | Method for treating reverse osmosis concentrated water |
| CN104944527A (en) * | 2015-06-12 | 2015-09-30 | 江苏新美星包装机械股份有限公司 | Water purifying process |
| CN105905984A (en) * | 2016-07-07 | 2016-08-31 | 厦门市天泉鑫膜科技股份有限公司 | Deep treatment method of effluent produced by membrane bio-reactor (MBR) technology |
| CN106731115A (en) * | 2016-12-06 | 2017-05-31 | 中冶京诚工程技术有限公司 | A kind of waterpower self-cleaning filter |
| CN110498480A (en) * | 2019-09-21 | 2019-11-26 | 佛山市云米电器科技有限公司 | A kind of split type reverse osmosis filter element device and a kind of water purifier |
| CN110498480B (en) * | 2019-09-21 | 2024-03-15 | 广东栗子科技有限公司 | Split type reverse osmosis filter element device and purifier |
| 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 |
| CN114031197A (en) * | 2021-11-10 | 2022-02-11 | 湖南清渟科技有限公司 | Water-saving reverse osmosis direct drinking machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20120522 |