CN202778286U - Pollution and plugging resistant hollow fiber membrane module - Google Patents
Pollution and plugging resistant hollow fiber membrane module Download PDFInfo
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- CN202778286U CN202778286U CN 201220391174 CN201220391174U CN202778286U CN 202778286 U CN202778286 U CN 202778286U CN 201220391174 CN201220391174 CN 201220391174 CN 201220391174 U CN201220391174 U CN 201220391174U CN 202778286 U CN202778286 U CN 202778286U
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- arc shaped
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- hollow fiber
- shaped blade
- fiber film
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Abstract
The utility model relates to a membrane separating module, in particular to a pollution and plugging resistant hollow fiber membrane module capable of effectively preventing pollution and plugging situations. The module comprises an upper end cover and a lower end cover, wherein a housing is arranged between the upper end cover and the lower end cover; a central pipe is arranged between the upper end cover and the lower end cover; a plurality of arc blades are arranged on the central pipe; and a hollow fiber membrane wire is arranged between the two adjacent arc blades. The utility model provides the pollution and plugging resistant hollow fiber membrane module having a simple structure and capable of effectively preventing pollution and plugging and prolonging the service life of the membrane module; and a technical problem that the service life of the membrane module is greatly shortened because pollution and plugging are easy to generate in the fiber membrane module in the prior art is solved.
Description
Technical field
The utility model relates to a kind of membrane separation assemblies, relates in particular to a kind of hollow-fibre membrane membrane module structure that can effectively prevent dirty stifled situation.
Background technology
Membrane separation technique is an efficient high-tech of separating that grows up from mid-term 1960's, develops the rapidest, most widely used general over nearly 40 years.Compare with traditional water technology, that membrane technology has is energy-conservation, small investment, easy and simple to handle, treatment effeciency advantages of higher, thereby day by day is subject to people's attention, and obtains rapidly promotion and application at each industrial circle.Application wherein, is compared with other membrane modules take plate film assembly, tubular membrane component and hollow fiber film assembly as main, it is large that hollow fiber film assembly has loading density, the advantages such as the filtration effective area is large, and aquifer yield is large, thereby be widely used in sewage disposal and middle water reuse etc.
But the such problem of hollow fiber film assembly ubiquity of using now: because loading density is large, hollow fiber film thread deposition phenomenon is serious, and be not easy to remove in case form deposition, easily form the sludge blanket between the film silk, thereby cause the adhesion between the film silk, cause the stifled phenomenon of dirt of membrane module to occur.So not only reduced the effective area that membrane module filters, with the uniformity of filtering, and along with the continuation development of the dirty stifled phenomenon of membrane module with spread, can further aggravate again the inhomogeneities of filtering and the forfeiture of effective filtration area, finally greatly shorten the service life of whole hollow fiber film assembly.And in order to reduce the generation of dirty stifled phenomenon, reduce the loading density of hollow-fibre membrane, then make it filter effective area, aquifer yield and wastewater treatment efficiency and be affected.
Chinese patent application number is that 200510049324.5 disclosed solutions are that hollow-fibre membrane is divided into some bundles, be uniformly distributed in the center aeration tube around, the air-flow that utilizes the aeration head of membrane module bottom to provide carries out sluicing to fibre bundle, although can reduce to a certain extent the pollution at hollow-fibre membrane middle part, hollow fiber membrane bundle root deposition phenomenon still is not resolved.
Chinese patent application number is 200920113068.5 to disclose a kind of membrane module for sewage treatment, comprises the hollow fiber film thread with radial pore, and this hollow fiber film thread is communicated with successively with collector pipe, drinking-water pipe and consists of the film assembly; The below of film assembly is provided with stirs the water device.Below the film assembly, establish and stir water device stirring-up sewage, make hollow fiber film thread liquid stream on every side become turbulent flow, thereby make the unlikely obstruction of hollow-fibre membrane radial pore.But hollow-fibre membrane middle part and upper end still easily stick together and dirty blocking up owing to the increase of pollutant density.
Chinese patent application number is 201110179370.2 to improve the polysulfone hollow fiber ultrafiltration membrane system of centre pipes, be furnished with pod apertures on the centre pipe surface of this assembly, and pod apertures is interspersed at centre pipe, when carrying out normal wash, be not easy to produce the dirt dead angle, cleaning performance is good.But in the processing procedure, the dirty stifled phenomenon of hollow-fibre membrane remains inevitable.
Summary of the invention
It is a kind of simple in structure that the utility model provides, and can effectively prevent dirty blocking up, and the resistant in the service life of membrane component and prolong is blocked up hollow fiber film assembly; Solved and produced easily dirty blocking up in the fiber film component that exists in the prior art, thus so that the technical problem that significantly reduces the service life of membrane module.
Above-mentioned technical problem of the present utility model solves by following technical proposals: a kind of resistant is blocked up hollow fiber film assembly, comprise upper end cover and bottom end cover, between upper and lower end cap, be provided with shell, between upper and lower end cap, be provided with central tube, be provided with some arc shaped blades at described central tube, between two adjacent arc shaped blades, be provided with hollow fiber film thread.After central tube is fixed several arc shaped blades, hollow fiber film thread is filled between two adjacent arc shaped blades, then arc shaped blade and hollow fiber film thread are formed a cylindrical shell to same direction coiling, then integral body is put into shell.The setting of arc shaped blade, between hollow fiber film thread, form flow-guiding structure, between hollow fiber film thread, formed the flow-guiding channel of sewage, reduced the pressure reduction of coming, so that in the process of disposing of sewage, be difficult for settled sludge between the hollow fiber film thread, thereby reduce the adhesion between the film silk, realized the antifouling stifled of membrane module.Hollow-fibre membrane can adopt the materials such as PVDF, polysulfones, polyether sulfone to make.Arc shaped blade is made of one or more materials that are selected from polypropylene, polyethylene, nylon, the polyvinyl chloride.
Arc shaped blade can adopt different structures, and as a kind of preferred, described each arc shaped blade is all contour with hollow-fibre membrane, and each arc shaped blade is uniform centered by central tube.Each arc shaped blade is whole piece, and the flow-guiding channel that the arc shaped blade of full wafer forms is longer more complete, can effectively prevent sludgd deposition.
Preferred as another kind, described each arc shaped blade is divided into 3 ~ 5 sections along the axial direction of central tube, between adjacent two sections arc shaped blades apart from 100mm ~ 200mm, each arc shaped blade is uniform centered by central tube.Each arc shaped blade central tube axially oppositely on be divided into some sections, saved material, simultaneously, also realized hollow fiber film thread is divided into some bundles, effectively prevent from saving material again in the situation of adhesion, the separation distance between two sections arc shaped blades is determined according to the length of film silk.
As preferably, the shape of described each arc shaped blade is identical, and the bending direction of each arc shaped blade is identical.All be clockwise bending, several arc shaped blades link to each other with central tube, the blade construction of the similar fan of its cross section, and the curved surface of arc in the same way is so that the water conservancy diversion better effects if.
As preferably, described arc shaped blade is network, and the network of described arc shaped blade is by along central tube axially and warp and the parallel of radial direction layout, and wherein the diameter of warp direction is greater than the diameter of weft direction.Be warp along the axial of central tube, along central tube radially be parallel, the direction of warp is identical with the direction of current, the large directionality that strengthens runner of its diameter more is conducive to the eliminating of sewage, has reduced the pressure reduction that filters.
The crossing mode of warp and parallel can be one deck for warp and parallel merge to intersect, also can be double-layer structure for warp and parallel distribute up and down, as more preferably, described parallel is positioned on the warp, form a projection at warp and parallel intersection, the angle of the crossing of warp and parallel is 20 ° ~ 90 °.The two-layer projection that intersects to form can allow the runner of sewage clearly more demarcated, improves guide effect and pollution discharge capability.
As preferably, described central tube upper end links to each other with water inlet, the lower end of central tube links to each other with dense water delivery port, the middle part of described central tube is provided with sprue, central tube above sprue is provided with water distributing pore, central tube below sprue is provided with osculum, is provided with the product water out at upper end cover.Water inlet has the water inlet of central tube upper end to enter central tube, then by the water distributing pore on the central tube water is drained in the membrane module, exported by the product water out in the upper end cover through the pure water after the processing of hollow-fibre membrane, and sewage enters central tube by the osculum of central tube bottom, is then discharged by the dense water delivery port on the bottom end cover.Sprue in the middle of the central tube can prevent from sewage and intake mutually obscuring, and makes things convenient for draining.The percentage that the region area of hollow fiber film thread accounts for the area of whole assembly casting end face on the casting face of end cap up and down is not less than 80%.
As preferably, described arc shaped blade has four, is filled with hollow fiber film thread in adjacent arc shaped blade, and arc shaped blade is network, and what consist of arc shaped blade is 0.5 ~ 1.5mm through linear diameter, and the parallel diameter that consists of arc shaped blade is 0.1 ~ 0.5mm.Greater than parallel, form the grid flow-guiding structure through linear diameter.By formed than large opening between thicker plastic wire, just for current provide a larger flow-guiding channel, also just reduced filtration pressure difference.
Therefore, the stifled hollow fiber film assembly of resistant of the present utility model possesses following advantage: hollow fiber film thread is between arc shaped blade, form flow-guiding structure, reduced the adhesion between the film silk, so that in the process of disposing of sewage, be difficult for settled sludge between the hollow fiber film thread, improve antifouling stifled effect, the service life of membrane component and prolong.
Description of drawings
Fig. 1 is the cross-sectional schematic of the stifled hollow fiber film assembly of resistant of the present utility model.
Fig. 2 is the A-A cutaway view of removing the upper and lower end lid on Fig. 1.
Fig. 3 is the grid schematic diagram of Fig. 1 arc blade.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the another kind of structural representation that the stifled hollow fiber film assembly of resistant of the present utility model is removed hollow fiber film thread.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical scheme of utility model is described in further detail.
Embodiment 1:
As illustrated in fig. 1 and 2, a kind of resistant is blocked up hollow fiber film assembly, comprise a columniform shell 4, be connected with a upper end cover 2 in the upper end of shell 4, be connected with a bottom end cover 10 in the lower end of shell 4, one central tube 8 is arranged at the center of shell 4, the upper end of central tube 8 links to each other with water inlet 1, the lower end of central tube 8 links to each other with dense water delivery port 9, the middle part of central tube 8 is provided with sprue 7, and the central tube above sprue 7 is provided with water distributing pore 12, and the central tube below sprue 7 is provided with osculum 11, be provided with product water out 3 at upper end cover 2, be provided with dense water delivery port 9 at bottom end cover 10.Outer wall at central tube 8 is fixed with four arc shaped blades 6, and the bending direction of each arc shaped blade 6 is identical, is filled with 100 hollow fiber film threads 5 between 6 of two adjacent arc-shaped leafs.The identical 1.5m that is of length of the length of arc shaped blade 6 and hollow fiber film thread 5.Hollow fiber film thread 5 adopts the manufacturing of polysulfones material, and its external diameter is 1.0mm, and internal diameter is 0.5mm, and average pore size is 2 μ m.Shown in Fig. 3 and 4, arc shaped blade 6 is latticed, consist of the warp of arc shaped blade 6 along the axial direction of central tube 8, consist of the parallel of arc shaped blade 6 along the radial direction of central tube, the diameter of warp 13 is greater than parallel 14, warp 13 is positioned on the parallel 14, and arc shaped blade 6 adopts polypropylene material to make.
During use, water inlet 1 water inlet of upper end cover 2 is arranged, water distributing pore 12 by central tube 8 tops is with current direction hollow fiber film thread 5, purification through hollow fiber film thread 5, pure water is positioned at hollow fiber film thread 5, to produce the water sucking-off through the product water out 3 on the upper end cover 2, and after the sewage in hollow fiber film thread 5 outsides enters central tube 8 by the osculum 11 of central tube lower semisection, by the dense water delivery port discharge on the bottom end cover.
Embodiment 2:
As shown in Figure 5, as different from Example 1, each arc shaped blade 6 is divided into four sections along the axial direction of central tube, and the distance between adjacent two sections is 150mm, and all the other are identical with embodiment 1.
Claims (10)
1. a resistant is blocked up hollow fiber film assembly, comprise upper end cover and bottom end cover, between upper and lower end cap, be provided with shell, between upper and lower end cap, be provided with central tube, it is characterized in that: be provided with some arc shaped blades at described central tube, between two adjacent arc shaped blades, be provided with hollow fiber film thread.
2. resistant according to claim 1 is blocked up hollow fiber film assembly, and it is characterized in that: described each arc shaped blade is all contour with hollow-fibre membrane, and each arc shaped blade is uniform centered by central tube.
3. resistant according to claim 1 is blocked up hollow fiber film assembly, it is characterized in that: described each arc shaped blade is divided into 3 ~ 5 sections along the axial direction of central tube, between adjacent two sections arc shaped blades apart from 100mm ~ 200mm, each arc shaped blade is uniform centered by central tube.
4. according to claim 1 and 2 or the stifled hollow fiber film assembly of 3 described resistants, it is characterized in that: the shape of described each arc shaped blade is identical, and the bending direction of each arc shaped blade is identical.
5. according to claim 1 and 2 or the stifled hollow fiber film assembly of 3 described resistants, it is characterized in that: described arc shaped blade is network, the network of described arc shaped blade is by warp and parallel axial along central tube and that radial direction is arranged, and wherein the diameter of warp direction is greater than the diameter of weft direction.
6. resistant according to claim 5 is blocked up hollow fiber film assembly, and it is characterized in that: described parallel is positioned on the warp, forms a projection at warp and parallel intersection, and the angle of the crossing of warp and parallel is 20 ° ~ 90 °.
7. resistant according to claim 4 is blocked up hollow fiber film assembly, it is characterized in that: described arc shaped blade is network, the network of described arc shaped blade is by warp and parallel axial along central tube and that radial direction is arranged, wherein the diameter of warp direction is greater than the diameter of weft direction, described parallel is positioned on the warp, forms a projection at warp and parallel intersection.
8. according to claim 1 and 2 or the stifled hollow fiber film assembly of 3 described resistants, it is characterized in that: described central tube upper end links to each other with water inlet, the lower end of central tube links to each other with dense water delivery port, the middle part of described central tube is provided with sprue, central tube above sprue is provided with water distributing pore, central tube below sprue is provided with osculum, is provided with the product water out at upper end cover.
9. resistant according to claim 7 is blocked up hollow fiber film assembly, it is characterized in that: described central tube upper end links to each other with water inlet, the lower end of central tube links to each other with dense water delivery port, the middle part of described central tube is provided with sprue, central tube above sprue is provided with water distributing pore, central tube below sprue is provided with osculum, is provided with the product water out at upper end cover.
10. according to claim 1 and 2 or the stifled hollow fiber film assembly of 3 described resistants, it is characterized in that: described arc shaped blade has four, in adjacent arc shaped blade, be filled with hollow fiber film thread, arc shaped blade is network, what consist of arc shaped blade is 0.5 ~ 1.5mm through linear diameter, and the parallel diameter that consists of arc shaped blade is 0.1 ~ 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391174 CN202778286U (en) | 2012-08-09 | 2012-08-09 | Pollution and plugging resistant hollow fiber membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391174 CN202778286U (en) | 2012-08-09 | 2012-08-09 | Pollution and plugging resistant hollow fiber membrane module |
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| CN202778286U true CN202778286U (en) | 2013-03-13 |
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| CN 201220391174 Expired - Fee Related CN202778286U (en) | 2012-08-09 | 2012-08-09 | Pollution and plugging resistant hollow fiber membrane module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082021A (en) * | 2021-12-03 | 2022-02-25 | 山东威高血液净化制品股份有限公司 | Improved dialyzer for dialysate flow |
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2012
- 2012-08-09 CN CN 201220391174 patent/CN202778286U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082021A (en) * | 2021-12-03 | 2022-02-25 | 山东威高血液净化制品股份有限公司 | Improved dialyzer for dialysate flow |
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| 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: 20130313 Termination date: 20150809 |
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| EXPY | Termination of patent right or utility model |