CN203556297U - Hollow fiber pipe type flat membrane - Google Patents
Hollow fiber pipe type flat membrane Download PDFInfo
- Publication number
- CN203556297U CN203556297U CN201320549388.1U CN201320549388U CN203556297U CN 203556297 U CN203556297 U CN 203556297U CN 201320549388 U CN201320549388 U CN 201320549388U CN 203556297 U CN203556297 U CN 203556297U
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- Prior art keywords
- hollow fiber
- membrane
- flat membrane
- flat sheet
- sheet membrane
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Abstract
The utility model discloses a hollow fiber flat membrane which comprises a flat membrane body and is characterized in that at least one hollow fiber pipe is arranged in the flat membrane body. The hollow fiber flat membrane disclosed by the utility model has the beneficial effects that the hollow fiber flat membrane has the advantages of a flat membrane and avoids wire breakage; and the hollow fiber flat membrane has the characteristics of a hollow fiber membrane and is a non-composite membrane and can be backwashed; with a support layer, the cost is saved; the production technology is widely applicable, the hollow fiber flat membrane can be produced by a wet process (phase inversion process) or a thermally induced phase process, thus the range of optional raw materials and additives is very wide, and technical guarantee is provided for producing a high-performance membrane meeting various special requirements; in a hollow pipe type, the hollow pipe can be used as a water inlet or water output channel instead of the mode that a common flat membrane needs a barrier layer as a water inlet or output channel, thereby greatly increasing the membrane area of unit volume (high membrane filling density); and through once extrusion moulding, the process is simple, and the production efficiency is high.
Description
Technical field
The utility model relates to film separation field, particularly a kind of doughnut tubular type flat sheet membrane.
Background technology
The advantages such as flat sheet membrane has long service life, and contamination resistance is strong.Flat sheet membrane is widely used in filtration or the dialysis in the various fields such as processing, drink water purifying, middle water reuse, food processing and biological medicine of industry and municipal wastewater.At present in use mainly there is following problem in flat sheet membrane: (1) film is double-decker, and easily layering can not backwash; (2) membrane area of unit volume (film packed density) is low.
Utility model content
For the easy layering of flat sheet membrane, can not backwash and the low technical problem of film packed density, the purpose of this utility model is to provide a kind of doughnut flat sheet membrane that can effectively address the above problem.
For achieving the above object, the technical scheme that the utility model proposes is: a kind of doughnut flat sheet membrane, comprise flat sheet membrane body, and it is characterized in that: in described flat sheet membrane body, be furnished with at least one hollow fiber conduit.
Further, the thickness of described flat sheet membrane body is 0.2-3mm, and width is 100-1000mm.
Further, the aperture of described hollow fiber conduit is 0.1-2.6mm, and the pipe thickness of hollow fiber conduit is 0.05-1.0mm.
Adopt technique scheme, doughnut flat sheet membrane described in the utility model, the beneficial effect having is:
1) there is flat sheet membrane, not fracture of wire;
2) there is the feature of hollow-fibre membrane, non-composite membrane, back-washable;
3) without supporting layer, cost-saving;
4) production technology adapts to extensively, can be by wet method (phase inversion) or thermic phase method explained hereafter, and therefore the scope of selectable raw material, additive is also very wide, for producing the film of high-performance and various specific (special) requirements, provides technical guarantee;
5) adopted hollow tubular type, its hollow tube can be used as into the passage of water or product water, need not also need interlayer as entering or producing aquaporin as common flat sheet membrane, thereby greatly improve the membrane area (film packed density is high) of unit volume;
6) extrusion molding, technical process is simple, and production efficiency is high.
Accompanying drawing explanation
Fig. 1 is doughnut flat sheet membrane cutaway view described in the utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, a kind of doughnut flat sheet membrane, comprise flat sheet membrane body 1, in flat sheet membrane body 1, be furnished with at least one hollow fiber conduit 11, the thickness of preferred flat sheet membrane body 1 is 0.2-3mm, width is 100-1000mm, and the aperture of hollow fiber conduit is 0.1-2.6mm, and the pipe thickness of hollow fiber conduit is 0.05-1.0mm.During use, pending water enters from hollow fiber conduit, purifies waste water from managing interior discharge; Or pending water enters in hollow fiber conduit, discharge from managing after treatment.
Above-mentioned doughnut flat sheet membrane can adopt following manufacture method:
(1) manufacture method of similar thermic phase method production flat sheet membrane
Step 1: by Kynoar, polyether sulfone or polysulfone polymer, high boiling diluent (non-solvent), pore former, diffusant, mix by following part by weight:
Kynoar, polyether sulfone or polysulfones 20-80%
Diluent 10-80%
Pore former 2-30%
Diffusant 1-5%
Step 2: by the above-mentioned masking material that is made into, by extrusion shaping machine high temperature cooling film forming after fiber tubular type flat sheet membrane pattern mouth is extruded, the logical compressed air of fibre pipe or higher boiling non-solvent wherein become fiber tubulose as core liquid, then enter in gas phase or liquid phase separation groove, the separation such as the diluent in masking material, pore former, diffusant enter in groove, make the fiber tubular type flat sheet membrane of high strength, high flux, back-washable thermic phase method;
(2) adopt solution phase to shift hollow fiber spinning technique
Step 1: Kynoar, polyether sulfone or polysulfone polymer, solvent, pore former are mixed by following part by weight:
Polyether sulfone or polysulfones 12-40%
Solvent 50-86%
Pore former 2-30%
Step 2: by above-mentioned solution stir, heating for dissolving is even, by fiber tubular type flat sheet membrane pattern mouth, extrude, the logical pure water of fibre pipe or mixed liquor wherein become fiber tubulose as core liquid, then enter in coagulating basin, the separation such as the dark agent in masking material, pore former, diffusant enter in groove, make the fiber tubular type flat sheet membrane of high flux, back-washable wet method (phase inversion).
Above-mentioned polymer is except Kynoar, polyether sulfone or polysulfones, also can be polyvinyl chloride, polyamide, polyethylene, polypropylene, polyester, polyphenylene sulfide, polyurethane, Merlon, polyacrylonitrile, polymethyl methacrylate etc., or the mixture of two or more polymer wherein.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; within not departing from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.
Claims (3)
1. a doughnut flat sheet membrane, comprises flat sheet membrane body, it is characterized in that: in described flat sheet membrane body, be furnished with at least one hollow fiber conduit.
2. a kind of doughnut flat sheet membrane according to claim 1, is characterized in that: the thickness of described flat sheet membrane body is 0.2-3mm, and width is 100-1000mm.
3. a kind of doughnut flat sheet membrane according to claim 1, is characterized in that: the aperture of described hollow fiber conduit is 0.1-2.6mm, and the pipe thickness of hollow fiber conduit is 0.05-1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549388.1U CN203556297U (en) | 2013-09-05 | 2013-09-05 | Hollow fiber pipe type flat membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549388.1U CN203556297U (en) | 2013-09-05 | 2013-09-05 | Hollow fiber pipe type flat membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203556297U true CN203556297U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320549388.1U Expired - Fee Related CN203556297U (en) | 2013-09-05 | 2013-09-05 | Hollow fiber pipe type flat membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203556297U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334452A (en) * | 2016-08-26 | 2017-01-18 | 杭州太仆汽车科技有限公司 | Filter membrane component and preparation method thereof |
| CN106422807A (en) * | 2016-11-17 | 2017-02-22 | 天津碧水源膜材料有限公司 | Different-diameter porous separation membrane |
| CN106422806A (en) * | 2016-11-17 | 2017-02-22 | 天津碧水源膜材料有限公司 | Corrugated porous separation film |
| CN112473397A (en) * | 2020-12-21 | 2021-03-12 | 盐城海普润科技股份有限公司 | High-strength flat filter membrane and preparation method thereof |
-
2013
- 2013-09-05 CN CN201320549388.1U patent/CN203556297U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334452A (en) * | 2016-08-26 | 2017-01-18 | 杭州太仆汽车科技有限公司 | Filter membrane component and preparation method thereof |
| CN106422807A (en) * | 2016-11-17 | 2017-02-22 | 天津碧水源膜材料有限公司 | Different-diameter porous separation membrane |
| CN106422806A (en) * | 2016-11-17 | 2017-02-22 | 天津碧水源膜材料有限公司 | Corrugated porous separation film |
| CN112473397A (en) * | 2020-12-21 | 2021-03-12 | 盐城海普润科技股份有限公司 | High-strength flat filter membrane and preparation method thereof |
| CN112473397B (en) * | 2020-12-21 | 2022-11-11 | 盐城海普润科技股份有限公司 | High-strength flat filter membrane and preparation method thereof |
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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: 20140423 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |