CN203564975U - Dedicated nanofiltration membrane for water purifier - Google Patents
Dedicated nanofiltration membrane for water purifier Download PDFInfo
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- CN203564975U CN203564975U CN201320628884.6U CN201320628884U CN203564975U CN 203564975 U CN203564975 U CN 203564975U CN 201320628884 U CN201320628884 U CN 201320628884U CN 203564975 U CN203564975 U CN 203564975U
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- nanofiltration
- water purifier
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Abstract
The utility model discloses a dedicated nanofiltration membrane for a water purifier, which is characterized by being formed through tightly compounding a base layer, a nanofiltration layer and a protection layer; a polysulfone mixed liquid is coated on polyester non-woven cloth to form the base layer through cooling forming; the nanofiltration layer is made of a polyamide material and has a nano separation function; polyethylenepropyl alcohol is uniformly coated on the surface of the nanofiltration layer to form the protection layer. The dedicated nanofiltration membrane has the advantages of reasonable structure, good working effect, good pollution resistance effect, and strong in intercept ability, and has a good application prospect.
Description
Technical field
The utility model relates to a kind of NF membrane, belongs to the accessory field of water purifier.
Background technology
NF membrane is a kind of a kind of membrane separation technique between counter-infiltration and ultrafiltration.The advantages such as the advantage of using NF membrane to separate is: separation process does not have phase transformation, does not need heating, does not destroy material self-characteristic, and operating pressure is lower.NF membrane can be held back the little molecule between 200 to 1000, part monovalent salt and most of divalent salts and multivalent salts, and nanofiltration product water quality is higher, therefore at food industry, pharmaceutical sector, chemical industry, Drinking Water Industry, has broad application prospects.At present in water purification field, NF membrane, because himself advantage replaces traditional RO film gradually, is widely used.But the defects such as antifouling property is bad, interception capacity is not good that existing NF membrane exists, can not meet user's user demand.Therefore, should provide a kind of new technical scheme to address the above problem.
Summary of the invention
The purpose of this utility model is: for above-mentioned deficiency, provide a kind of rational in infrastructure, good working effect, the special NF membrane of antipollution effect water purifier good, that interception capacity is strong.
For achieving the above object, the technical solution adopted in the utility model is:
The special NF membrane of water purifier, it is by one, polysulfones mixed liquor to be coated in to the nanofiltration layer with nanometer centrifugation that the basic unit, that obtains through cooling forming on polyester non-woven fabric is made by polyamide material and by polyethylene propyl alcohol, to be evenly coated in the protective layer that nanofiltration layer surface form and to be closely composited.
The related content of technique scheme is explained as follows:
1,, in technique scheme, the thickness of described basic unit is 0.05-0.07mm.
2,, in technique scheme, the thickness of described nanofiltration layer is 0.005-0.015mm.
3,, in technique scheme, the thickness of described protective layer is 0.005-0.015mm.
Due to the employing of technique scheme, the utility model compared with prior art tool has the following advantages:
1, because the basic unit of the utility model NF membrane is coated on polyester non-woven fabric and is obtained through cooling forming by polysulfones mixed liquor, the polyester non-woven fabric that has applied polysulfones mixed liquor has good chemical stability, acid-proof alkaline is good, and water permeability is good, and cutoff performance is stable.
2, because the utility model forms protective layer at the surface uniform coating layer of polyethylene propyl alcohol of nanofiltration layer, such structural design has not only improved flux and the hydrophily of NF membrane, has also improved the resistance tocrocking of NF membrane, has broad application prospects.
3, because the thickness of the utility model basic unit is 0.05-0.07mm, the thickness of nanofiltration layer and protective layer is 0.005-0.015mm, and such size design can guarantee best functional of NF membrane.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model embodiment mono-schematic diagram.
In above accompanying drawing: 1, basic unit; 2, nanofiltration layer; 3, protective layer.
The specific embodiment
Embodiment mono-
Below in conjunction with drawings and Examples, the utility model is further described:
As shown in Figure 1; the special NF membrane of the utility model water purifier; it is by one, polysulfones mixed liquor to be coated in to the basic unit 1, the nanofiltration layer 2 with nanometer centrifugation being made by polyamide material and that on polyester non-woven fabric, through cooling forming, obtain by polyethylene propyl alcohol, to be evenly coated in the surperficial protective layer 3 forming of nanofiltration layer 2 and to be closely composited; the thickness of basic unit 1 is 0.06mm, and the thickness of nanofiltration layer 2 and protective layer 3 is 0.01mm.The basic unit 1 of the utility model NF membrane is coated on polyester non-woven fabric and is obtained through cooling forming by polysulfones mixed liquor, the polyester non-woven fabric that has applied polysulfones mixed liquor has good chemical stability, acid-proof alkaline is good, water permeability is good, cutoff performance is stable, surface uniform coating layer of polyethylene propyl alcohol at nanofiltration layer 2 forms protective layer 3, such structural design has not only improved flux and the hydrophily of NF membrane, also improved the resistance tocrocking of NF membrane, have broad application prospects, the thickness of basic unit 1 is 0.06mm, the thickness of nanofiltration layer 2 and protective layer 3 is 0.01mm, such size design can guarantee best functional of NF membrane.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (4)
1. the special NF membrane of water purifier, is characterized in that: it is by one, polysulfones mixed liquor to be coated in to the nanofiltration layer with nanometer centrifugation that the basic unit, that obtains through cooling forming on polyester non-woven fabric is made by polyamide material and by polyethylene propyl alcohol, to be evenly coated in the protective layer that nanofiltration layer surface form and to be closely composited.
2. the special NF membrane of water purifier according to claim 1, is characterized in that: the thickness of described basic unit is 0.05-0.07mm.
3. the special NF membrane of water purifier according to claim 1, is characterized in that: the thickness of described nanofiltration layer is 0.005-0.015mm.
4. the special NF membrane of water purifier according to claim 1, is characterized in that: the thickness of described protective layer is 0.005-0.015mm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628884.6U CN203564975U (en) | 2013-10-12 | 2013-10-12 | Dedicated nanofiltration membrane for water purifier |
| US14/510,968 US20150101987A1 (en) | 2013-10-12 | 2014-10-09 | Stacked plate-shaped composite membrane cartridge |
| PCT/US2014/059930 WO2015054511A1 (en) | 2013-10-12 | 2014-10-09 | Stacked plate-shaped composite membrane cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628884.6U CN203564975U (en) | 2013-10-12 | 2013-10-12 | Dedicated nanofiltration membrane for water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203564975U true CN203564975U (en) | 2014-04-30 |
Family
ID=50532739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320628884.6U Expired - Fee Related CN203564975U (en) | 2013-10-12 | 2013-10-12 | Dedicated nanofiltration membrane for water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203564975U (en) |
-
2013
- 2013-10-12 CN CN201320628884.6U patent/CN203564975U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yongqiang Inventor after: Zhang Yongming Inventor after: Ye Zhuanghua Inventor before: Zhang Yongming Inventor before: Wang Yongqiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG YONGMING WANG YONGQIANG TO: WANG YONGQIANG ZHANG YONGMING YE ZHUANGHUA |
|
| 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: 20140430 Termination date: 20181012 |