CN202036927U - Tubular organic nanofiltration membrane - Google Patents
Tubular organic nanofiltration membrane Download PDFInfo
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- CN202036927U CN202036927U CN2011200636485U CN201120063648U CN202036927U CN 202036927 U CN202036927 U CN 202036927U CN 2011200636485 U CN2011200636485 U CN 2011200636485U CN 201120063648 U CN201120063648 U CN 201120063648U CN 202036927 U CN202036927 U CN 202036927U
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- membrane
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- tubular
- nanofiltration membrane
- organic nanofiltration
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Abstract
The utility model relates to a tubular membrane, in particular to a tubular organic nanofiltration membrane, which is suitable for the concentration treatment of water and the separation, concentration, and purification of products, in particular suitable for the treatment of domestic sewage and industrial sewage. The tubular organic nanofiltration membrane is formed by tightly combining an external supporting layer (2), an intermediate trapping layer (2) and an internal compact layer (3). A layer of composite membrane (4) is further combined on the internal compact layer (3) which is made of polyvinylidene fluoride, and the composite membrane (4) is made of polyamide. For the tubular organic nanofiltration membrane, the composite membrane is further combined on the compact layer of the original tubular membrane, so that the filtering pore size is about several nanometers; and matters with a molecular weight of more than 150 Dal can be trapped, so that the trapping capability is greatly improved.
Description
Technical field
The utility model relates to a kind of tubular membrane, especially relates to the organic NF membrane of a kind of tubular type, generally is applicable to the concentration processing of water quality and the separation of product, concentrated, purification, is specially adapted to the processing of sanitary sewage, trade effluent.
Background technology
Membrane separation technique is to be to select barrier layer with the pellicle, is mass transfer power with the pressure differential of film both sides, utilizes the aperture difference of each component films, allows in the mixture some component to see through and keeps other components, thereby reach the technology of separating purpose.Known filter membrane can be divided into flat sheet membrane, rolled film, tubular membrane and hollow-fibre membrane etc. according to its shape.Flat sheet membrane elementary membrane area is less relatively, and filter efficiency is relatively poor; Rolled film and hollow-fibre membrane easily stop up and easy cleaning not, and be therefore higher to the water quality requirement of water inlet, is not suitable for handling the system that viscosity is higher, solids content is higher.Tubular membrane can overcome above-mentioned deficiency, and it has the filter efficiency height, not susceptible to plugging advantage.But at present the tubular membrane of generally using mainly by supporting layer, hold back layer and compacted zone closely is composited for three layers, its pore size filter is between 0.001 ~ 10 μ m, be merely able to big molecule and the colloidal particles of molecular cut off more than 500Dal, its interception capacity is relatively poor.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of tubular type organic NF membrane, and its pore size filter can the material of molecular cut off more than 150Dal about several nanometers, and interception capacity improves greatly.
The purpose of this utility model is achieved in that the organic NF membrane of a kind of tubular type, and it holds back layer by outer supporting layer, centre and the inner compact layer layer closely is composited for three layers, is characterized in: also be compounded with one deck composite membrane on the described inner compact layer layer.
Described inner compact layer layer material adopts Kynoar.
Described composite membrane material adopts polyamide.
Compared with prior art, the beneficial effects of the utility model are:
The organic NF membrane of a kind of tubular type of the utility model, it is compound again one deck composite membrane on original tubular type film inner layer compacted zone, and its pore size filter can the material of molecular cut off more than 150Dal about several nanometers, and interception capacity improves greatly.
Description of drawings
Fig. 1 is the structural representation of the organic NF membrane of a kind of tubular type of the utility model.
Wherein:
Supporting layer 1, hold back layer 2, compacted zone 3, composite membrane 4.
The specific embodiment
Referring to Fig. 1, the utility model relates to the organic NF membrane of a kind of tubular type, it mainly by supporting layer 1, hold back the layer 2 and compacted zone closely be composited for 3 three layers, supporting layer 1 is positioned at skin, and compacted zone 3 is positioned at internal layer, holds back layer 2 between supporting layer 1 and compacted zone 3, also be compounded with one deck composite membrane 4 on the compacted zone 3, compacted zone 3 materials adopt Kynoar, and composite membrane 4 materials adopt polyamide, and its pore size filter is about several nanometers.
Claims (3)
1. organic NF membrane of tubular type, it holds back layer (2) by outer supporting layer (1), centre and the inner compact layer layer closely is composited for (3) three layers, it is characterized in that: also be compounded with one deck composite membrane (4) on the described inner compact layer layer (3).
2. the organic NF membrane of a kind of tubular type according to claim 1 is characterized in that: described inner compact layer layer (3) material adopts Kynoar.
3. the organic NF membrane of a kind of tubular type according to claim 1 is characterized in that: described composite membrane (4) material adopts polyamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200636485U CN202036927U (en) | 2011-03-12 | 2011-03-12 | Tubular organic nanofiltration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200636485U CN202036927U (en) | 2011-03-12 | 2011-03-12 | Tubular organic nanofiltration membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202036927U true CN202036927U (en) | 2011-11-16 |
Family
ID=44964393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200636485U Expired - Lifetime CN202036927U (en) | 2011-03-12 | 2011-03-12 | Tubular organic nanofiltration membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202036927U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580561A (en) * | 2012-02-22 | 2012-07-18 | 江阴市金水膜技术工程有限公司 | Tubular composite nanofiltration membrane |
| CN105169967A (en) * | 2015-07-16 | 2015-12-23 | 湖州科富拉膜技术有限公司 | Fiberglass tubular composite filter material tensioned membrane |
| CN107694350A (en) * | 2017-11-22 | 2018-02-16 | 奥王建筑材料科技有限公司 | A kind of wall facing mortar special filtering film |
| CN108911978A (en) * | 2018-07-30 | 2018-11-30 | 云南省玉溪市溶剂厂有限公司 | A kind of method for purifying glyceryl triacetate |
| CN111333211A (en) * | 2018-12-18 | 2020-06-26 | 东睿材科股份有限公司 | Tubular membrane filtration system and method of operation |
| CN115417474A (en) * | 2022-11-07 | 2022-12-02 | 泰州禾益新材料科技有限公司 | Wastewater treatment device with function of reducing deformation amount of filter membrane |
-
2011
- 2011-03-12 CN CN2011200636485U patent/CN202036927U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580561A (en) * | 2012-02-22 | 2012-07-18 | 江阴市金水膜技术工程有限公司 | Tubular composite nanofiltration membrane |
| CN102580561B (en) * | 2012-02-22 | 2014-05-14 | 江阴市金水膜技术工程有限公司 | Tubular composite nanofiltration membrane |
| CN105169967A (en) * | 2015-07-16 | 2015-12-23 | 湖州科富拉膜技术有限公司 | Fiberglass tubular composite filter material tensioned membrane |
| CN107694350A (en) * | 2017-11-22 | 2018-02-16 | 奥王建筑材料科技有限公司 | A kind of wall facing mortar special filtering film |
| CN108911978A (en) * | 2018-07-30 | 2018-11-30 | 云南省玉溪市溶剂厂有限公司 | A kind of method for purifying glyceryl triacetate |
| CN111333211A (en) * | 2018-12-18 | 2020-06-26 | 东睿材科股份有限公司 | Tubular membrane filtration system and method of operation |
| CN115417474A (en) * | 2022-11-07 | 2022-12-02 | 泰州禾益新材料科技有限公司 | Wastewater treatment device with function of reducing deformation amount of filter membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |