CN103933863A - Serial cross-flow membrane filtration assembly - Google Patents
Serial cross-flow membrane filtration assembly Download PDFInfo
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- CN103933863A CN103933863A CN201410163544.XA CN201410163544A CN103933863A CN 103933863 A CN103933863 A CN 103933863A CN 201410163544 A CN201410163544 A CN 201410163544A CN 103933863 A CN103933863 A CN 103933863A
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- filtration assembly
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Abstract
The invention relates to water treatment equipment, and in particular relates to a serial cross-flow membrane filtration assembly. The serial cross-flow membrane filtration assembly is formed by connecting at least over two cross-flow hollow fiber membrane devices in series; each cross-flow hollow fiber membrane device comprises a tubular pressure container, a hollow fiber membrane arranged inside the pressure container, and liquid inlet and outlet ends formed at the two ends of the pressure container; a water distributor is arranged at the liquid inlet end of each hollow fiber membrane device; water distribution holes of each water distributor are formed annularly, and the pore diameters of the water distribution holes are increased along with the increase of the distances between the water distribution holes and each liquid inlet end; a perforated arch-shaped baffle plate for protecting the hollow fiber membrane is arranged between each liquid inlet end and each pressure container. High-quality effluent can be obtained through the serial cross-flow membrane filtration assembly formed by connecting the cross-flow hollow fiber membrane devices in series. By combining the water distributors and the perforated arch-shaped baffle plates, the water inlet pressure can be regulated, uniform water distribution is realized, hollow fiber membrane yarns are protected, and the filtering effect is enhanced.
Description
Technical field
The present invention relates to a kind of water treatment facilities, relate in particular to a kind of tandem crossflow membrane filtration assembly.
Background technology
The general principle of cross-flow filtration is, makes not filtrate in membrane component, do high-speed circulating flow with circulating pump.Part liquid becomes clear filtrate through face micropore discharges, and the suspension that is greater than face micropore is trapped within film surface and forms cake layer.The shearing force that filtrate high velocity stream does not produce in the time of face, takes away the suspension being attached on face, makes cake layer attenuation, prevents the obstruction of membrane component.The concentrate forming when filtration is pooled to not in filtrate, in membrane component, circulates.
CN103638818A (2014-3-19) discloses spiral crossflow membrane filtration device and method at a kind of intermittence, but this device water distribution is even not, and filter effect haves much room for improvement.
Summary of the invention
The object of this invention is to provide a kind of water distribution evenly, the tandem crossflow membrane filtration assembly of good filtration effect.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs:
A kind of tandem crossflow membrane filtration assembly, it forms by least plural cross-flow hollow fiber membrane device series connection;
Described cross-flow hollow fiber membrane device comprise tubular structure pressure vessel, be arranged at the hollow-fibre membrane of pressure vessel inside and be arranged at the liquid in-out end at pressure vessel two ends;
The liquid feeding end of described hollow fiber membrane device is provided with water-locator, and the water distributing pore of described water-locator arranges ringwise and the aperture of described water distributing pore increases with the distance of itself and liquid feeding end;
Between described liquid feeding end and described pressure vessel, be provided with the arched baffle plate with holes for the protection of hollow-fibre membrane.
The present invention adopts in-line cross-flow hollow fiber membrane device series connection formation crossflow membrane filtration assembly can obtain the water outlet of high-quality, can be according to diameter or the pore size of the hollow-fibre membrane in the different pressures container of different occasions configuration plural serial stages; Adopt the pressure vessel of elongated tubular, be convenient to placement and the replacing of hollow fiber film thread, simultaneously because pressure vessel is vertically placed, effectively reduced floor space; Being used in combination and can regulating intake pressure of water-locator and arched baffle plate with holes, makes water distribution even, protection hollow fiber film thread, and improve filter effect.
Membrane module is in the time of operation, and pending former water enters inside through liquid feeding end and filters, and water inlet has circular opening to flow out from liquid outlet by baffle plate, in the time that operating pressure increases, is unlikely to damage the pliability of film, thereby plays the effect of diaphragm silk.In the time carrying out backwash, backwash current are evenly distributed and enter the putamina inside of filling film silk by the circular opening on baffle plate, thereby reduce the damage that causes film because of hydraulic pressure.
As preferably, described arched baffle plate is connected with described liquid in-out end by joint.
As preferably, the cylindrical structure of described pressure vessel, two ends are provided with the hemispherical end cap of hollow, and liquid feeding end covers stoste import and backwash liquor outlet is set, and outlet end covers and dope outlet is set and sees through liquid outlet.
As preferably, the cylindrical structure of described pressure vessel, two ends are provided with the hemispherical end cap of hollow, and liquid feeding end covers and stoste import is set and sees through liquid outlet, and outlet end covers and dope outlet is set and sees through liquid outlet.
As preferably, the structure that described end cap is integrated, upper end cover is identical with the structure of bottom end cover, and described arched baffle plate is arranged on the junction of pressure vessel and end cap.
As preferably, described hollow-fibre membrane is uniformly distributed in described pressure vessel inside.
As preferably, the plan structure of described arched baffle plate is the closing waist type rectangle that two ends length is large, intermediate length is little, on described arched baffle plate with the aperture in gear hole diminish gradually from both ends to the middle and distribution density becomes large gradually.
Structure of the present invention can further increase the protective effect to film silk.
As preferably, the inside diameter ranges of described hollow-fibre membrane is 4-25mm.
As preferably, described liquid feeding end is connected with booster pump, and the hollow fiber membrane device of described series connection has 8-12.
As preferably, the outlet end of described hollow-fibre membrane is provided with for fixing described hollow-fibre membrane and prevents from filtering the film lattice support member in dead band.
Brief description of the drawings
Fig. 1 is the schematic diagram of tandem crossflow membrane filtration assembly of the present invention;
Fig. 2 is the structural representation of water-locator;
Fig. 3 is the liquid feeding end schematic diagram of hollow fiber membrane device of the present invention
Fig. 4 is arched baffle plate front view of the present invention;
Fig. 5 is arched baffle plate top view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Fig. 1,2,3,4 and 5, tandem crossflow membrane filtration assembly, it forms by least plural cross-flow hollow fiber membrane device 1 series connection; Cross-flow hollow fiber membrane device 1 comprise tubular structure pressure vessel 10, be arranged at the hollow-fibre membrane 11 of pressure vessel 10 inside and be arranged at the liquid in-out end at pressure vessel 10 two ends; The liquid feeding end 12 of hollow fiber membrane device 1 is provided with water-locator 13, and the water distributing pore 131 of water-locator 13 arranges ringwise and the aperture of water distributing pore increases with the distance of itself and liquid feeding end 12; Between liquid feeding end 12 and pressure vessel 10, be provided with the arched baffle plate with holes 14 for the protection of hollow-fibre membrane 11.Consider from the double angle of water distribution angle and the protection of film silk, hollow-fibre membrane 11 is uniformly distributed in pressure vessel 10 inside.From the viewpoint of film silk intensity, selecting the inside diameter ranges of hollow-fibre membrane 11 is 4-25mm.
Arched baffle plate 14 is connected with liquid in-out end by joint.Joint can be with holes, from the viewpoint of water distribution, can be designed to flexible strip.
Hollow fiber membrane device 1 can be that single head produces water: the cylindrical structure of pressure vessel 10, and two ends are provided with the hemispherical end cap 101 of hollow, and liquid feeding end covers stoste import and backwash liquor outlet is set, and outlet end covers and dope outlet is set and sees through liquid outlet.
Hollow fiber membrane device 1 also can be produced water in two: the cylindrical structure of pressure vessel 10, and two ends are provided with the hemispherical end cap 101 of hollow, and liquid feeding end covers and stoste import is set and sees through liquid outlet, and outlet end covers and dope outlet is set and sees through liquid outlet.The structure that end cap 101 is integrated, upper end cover is identical with the structure of bottom end cover, and arched baffle plate 14 is arranged on the junction of pressure vessel and end cap.
The plan structure of arched baffle plate 14 is the closing waist type rectangular body that two ends length is large, intermediate length is little, on arched baffle plate 14 with the aperture in gear hole 141 diminish gradually from both ends to the middle and distribution density becomes large gradually.
In order to facilitate actual motion and to improve water treatment effect, liquid feeding end 12 is connected with booster pump, and the hollow fiber membrane device 1 of series connection has 8-12.
For fixing hollow-fibre membrane and preventing from filtering dead band, the film lattice support member arranging at the outlet end 15 of hollow-fibre membrane 11, preferably arranges 6 film lattice support members.
Change angle consideration from control angle and convenient for maintaining, valve can be set separately in different hollow fiber membrane device 1, and by the total valve control of liquid in-out end.
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art are reading after this description and can make to the present embodiment the amendment that there is no creative contribution as required, but as long as within the scope of claim of the present invention, are all subject to the protection of Patent Law.
Claims (10)
1. a tandem crossflow membrane filtration assembly, is characterized in that:
Form by least plural cross-flow hollow fiber membrane device (1) series connection;
Described cross-flow hollow fiber membrane device (1) comprise tubular structure pressure vessel (10), be arranged at the inner hollow-fibre membrane (11) of pressure vessel (10) and be arranged at the liquid in-out end at pressure vessel (10) two ends;
The liquid feeding end (12) of described hollow fiber membrane device (1) is provided with water-locator (13), and the water distributing pore (131) of described water-locator (13) arranges ringwise and the aperture of described water distributing pore increases with the distance of itself and liquid feeding end (12);
Between described liquid feeding end (12) and described pressure vessel (10), be provided with the arched baffle plate with holes (14) for the protection of hollow-fibre membrane (11).
2. a kind of tandem crossflow membrane filtration assembly according to claim 1, is characterized in that: described arched baffle plate (14) is connected with described liquid in-out end by joint.
3. a kind of tandem crossflow membrane filtration assembly according to claim 2, it is characterized in that: the cylindrical structure of described pressure vessel (10), two ends are provided with the hemispherical end cap (101) of hollow, liquid feeding end covers stoste import and backwash liquor outlet is set, and outlet end covers and dope outlet is set and sees through liquid outlet.
4. a kind of tandem crossflow membrane filtration assembly according to claim 2, it is characterized in that: the cylindrical structure of described pressure vessel (10), two ends are provided with the hemispherical end cap (101) of hollow, liquid feeding end covers and stoste import is set and sees through liquid outlet, and outlet end covers and dope outlet is set and sees through liquid outlet.
5. according to a kind of tandem crossflow membrane filtration assembly described in claim 3 or 4, it is characterized in that: the integrated structure of described end cap (101), upper end cover is identical with the structure of bottom end cover, and described arched baffle plate (14) is arranged on the junction of pressure vessel and end cap.
6. a kind of tandem crossflow membrane filtration assembly according to claim 5, is characterized in that: described hollow-fibre membrane (11) is uniformly distributed in described pressure vessel (10) inside.
7. a kind of tandem crossflow membrane filtration assembly according to claim 6, it is characterized in that: the plan structure of described arched baffle plate (14) is the closing waist type rectangular body that two ends length is large, intermediate length is little, described arched baffle plate (14) upper with the aperture in gear hole (141) diminish gradually from both ends to the middle and distribution density becomes large gradually.
8. a kind of tandem crossflow membrane filtration assembly according to claim 7, is characterized in that: the inside diameter ranges of described hollow-fibre membrane (11) is 4-25mm.
9. a kind of tandem crossflow membrane filtration assembly according to claim 8, is characterized in that: described liquid feeding end (12) is connected with booster pump, and the hollow fiber membrane device (1) of described series connection has 8-12.
10. a kind of tandem crossflow membrane filtration assembly according to claim 9, is characterized in that: the outlet end (15) of described hollow-fibre membrane (11) is provided with for fixing described hollow-fibre membrane and prevents from filtering the film lattice support member in dead band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163544.XA CN103933863A (en) | 2014-04-23 | 2014-04-23 | Serial cross-flow membrane filtration assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163544.XA CN103933863A (en) | 2014-04-23 | 2014-04-23 | Serial cross-flow membrane filtration assembly |
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| CN103933863A true CN103933863A (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410163544.XA Pending CN103933863A (en) | 2014-04-23 | 2014-04-23 | Serial cross-flow membrane filtration assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209006A (en) * | 2014-09-16 | 2014-12-17 | 杭州费尔过滤技术有限公司 | Degassing film component with spiral baffle and asymmetric guide holes |
| CN105126625A (en) * | 2015-09-16 | 2015-12-09 | 湖州恒鑫过滤科技有限公司 | Cross-flow membrane module |
| CN110339720A (en) * | 2019-06-14 | 2019-10-18 | 宁波大学 | A kind of vertical cross-flow filtration integrating device based on hollow-fibre membrane |
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| WO2008072615A1 (en) * | 2006-12-15 | 2008-06-19 | Nakazato, Mamiko | Functional water and process for producing the same |
| CN201524526U (en) * | 2009-09-21 | 2010-07-14 | 江苏金山环保工程集团有限公司 | Filtering device using hollow fiber ultrafiltration membrane |
| CN201578992U (en) * | 2009-12-21 | 2010-09-15 | 金科(北京)环保工程有限公司 | Double-ring distributor |
| CN102363107A (en) * | 2011-06-29 | 2012-02-29 | 苏州顶裕水务科技有限公司 | Hollow fiber ultrafiltration membrane component of perforated arched baffle plate |
| CN202277789U (en) * | 2011-10-18 | 2012-06-20 | 山东广明实业有限公司 | Membrane separation device for fractionating polypeptides |
| CN203803382U (en) * | 2014-04-23 | 2014-09-03 | 湖州森蓝环境工程有限公司 | Serial connection type cross flow membrane filter assembly |
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2014
- 2014-04-23 CN CN201410163544.XA patent/CN103933863A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008072615A1 (en) * | 2006-12-15 | 2008-06-19 | Nakazato, Mamiko | Functional water and process for producing the same |
| CN201524526U (en) * | 2009-09-21 | 2010-07-14 | 江苏金山环保工程集团有限公司 | Filtering device using hollow fiber ultrafiltration membrane |
| CN201578992U (en) * | 2009-12-21 | 2010-09-15 | 金科(北京)环保工程有限公司 | Double-ring distributor |
| CN102363107A (en) * | 2011-06-29 | 2012-02-29 | 苏州顶裕水务科技有限公司 | Hollow fiber ultrafiltration membrane component of perforated arched baffle plate |
| CN202277789U (en) * | 2011-10-18 | 2012-06-20 | 山东广明实业有限公司 | Membrane separation device for fractionating polypeptides |
| CN203803382U (en) * | 2014-04-23 | 2014-09-03 | 湖州森蓝环境工程有限公司 | Serial connection type cross flow membrane filter assembly |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209006A (en) * | 2014-09-16 | 2014-12-17 | 杭州费尔过滤技术有限公司 | Degassing film component with spiral baffle and asymmetric guide holes |
| CN104209006B (en) * | 2014-09-16 | 2016-08-31 | 杭州费尔过滤技术有限公司 | A kind of band helical barriers and the degassing membrane component of asymmetric pod apertures |
| CN105126625A (en) * | 2015-09-16 | 2015-12-09 | 湖州恒鑫过滤科技有限公司 | Cross-flow membrane module |
| CN105126625B (en) * | 2015-09-16 | 2018-04-13 | 湖州恒鑫过滤科技有限公司 | A kind of cross-flow membrane module |
| CN110339720A (en) * | 2019-06-14 | 2019-10-18 | 宁波大学 | A kind of vertical cross-flow filtration integrating device based on hollow-fibre membrane |
| CN110339720B (en) * | 2019-06-14 | 2022-01-11 | 宁波大学 | Vertical cross flow filtering integrated device based on hollow fiber membrane |
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Application publication date: 20140723 |