CN102166479A - Improved antipollution membrane device - Google Patents
Improved antipollution membrane device Download PDFInfo
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- CN102166479A CN102166479A CN2011100538025A CN201110053802A CN102166479A CN 102166479 A CN102166479 A CN 102166479A CN 2011100538025 A CN2011100538025 A CN 2011100538025A CN 201110053802 A CN201110053802 A CN 201110053802A CN 102166479 A CN102166479 A CN 102166479A
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Abstract
The invention discloses an improved antipollution membrane device which comprises a container and a membrane module, wherein the membrane module is arranged at the central axis of the container, and the side wall of the upper part of the container is provided with a raw water inlet; the raw water is fed into an inner cavity of the container along the circumferential tangent direction of the container, then formed into a downward rotational flow having an acceleration in the container; the filtered water passing through the membrane module is discharged from the top of the container; and the produced rejected water is discharged from the side wall of the lower part of the container. By using the improved antipollution membrane device disclosed by the invention, the antipollution performance can be improved, a high water flux can be kept for a long time, the short-time flowing of raw water in the container can be prevented, the water recovery can be increased, the frequency of membrane cleaning can be reduced, and the service time of a membrane can be prolonged.
Description
Technical field
The present invention discloses a kind of pollution-resistant membrane device of improvement, belong to water-treatment technology field, relate in particular to a kind of membrane module, former water forms the eddy flow with velocity gradient in the membrane module container, the cross-flow shear action horizontal and vertical on the film surface polluted alleviating film, reduces concentration polarization, reduces cleaning frequency and plays a significant role, can prevent that in addition former water from forming short stream in container, to certain contribution is arranged the service life of improving film separative efficiency and film.
Background technology
Water is the fundamental of human society survival and development, yet along with the development of society, water pollutes and becomes more serious, and pollutant kind is more and more, along with the raising of people's awareness of safety proposes higher requirement to water quality.Membrane separation technique, film separation process are to carry out at normal temperatures, and no phase transformation does not produce secondary pollution, and high-efficiency low-carbon has outstanding effluent quality and broad applicability, one of water treatment key technology that has become.Yet film pollutes one of the most important factor of restriction membrane technology extensive use that becomes.The film pollution causes membrane flux to descend, clean frequently, the life-span reduces, the operating cost increase, and the antifouling property that improves film has very important significance.
The separating mechanism of film is a sieve aperture sub-argument mechanism, and under pressure-driven, size is separated the particle or the molecule in aperture less than film, can pass tunica fibrosa, and size is then held back by tunica fibrosa greater than particle or molecule that film separates the aperture, thereby realizes the separation of sized particles.It mainly is because fenestra stops up, the formation of cake layer descends flux that film pollutes.The improvement method mainly is the process structure design of the hydrophilic modifying and the membrane module of film at present.
The film hydrophilic modification comprises modification physics, chemistry, as adopt surfactant to carry out surface-coated, graft copolymerization etc. to be reflected at film surface and directly to generate hydrophily, the blending and modifying that hydrophilic radical for good and all improves the surface, in solvent, add hydrophilic substance.Mechanical strength and the chemical stability and the cutoff performance of film lost by these method regular meetings.
The process structure design of membrane module, blast compressed air as inner chamber at membrane module, doughnut is produced rock under the effect of air bubble and current and vibrate, utilize the air bubble expansion that produces owing to decompression to deal with dirt, membrane module rotation generation shearing force is dealt with dirt etc.Above method all needs a mechanism that power is provided, and has the equipment price height, the easy damaged membrane module.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of simple in structure, cost is low, can improve the film antifouling property, prolong the film film device in service life, former water forms the eddy flow with velocity gradient in container, the cross-flow shear action horizontal and vertical on the film surface polluted alleviating film, reduce concentration polarization, reduce cleaning frequency.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of pollution-resistant membrane device of improvement comprises:
One container;
One membrane module, it is arranged on the container center axis, the container upper portion side wall is provided with original water inlet, former water imports along all tangential directions of container to container intracavity, and form the eddy flow that has acceleration downwards at internal tank, filtered water through membrane module is derived by container top, and the dense water of generation is derived from the container lower sides.
Further, described container is an inverted cone, and former water imports along container periphery tangential direction to container intracavity, and former water from top to bottom reduces the eddy flow that the increasing formation of rotary speed has velocity gradient along with vessel radius.
Further, described container is the rounding stage body, and former water imports along container periphery tangential direction to container intracavity, and former water from top to bottom reduces the eddy flow that the increasing formation of rotary speed has velocity gradient along with vessel radius.
Further, described inverted cone or rounding stage body, the end face of two containers and the angle of chamber wall are 45o～85o, import former water and can in container, form eddy flow with velocity gradient, solid is different because of the centrifugal inertial force that density contrast produces with liquid in the former water, and the solid particle that density is big is thrown toward chamber wall, the then close membrane module that is positioned at center membrane of the liquid that density is little, Gu also move downward when particle is thrown toward chamber wall, derive from dense water delivery line at last along chamber wall is spiral.
Further, former water forms the eddy flow with velocity gradient in the described container, laterally and on the longitudinal direction has strong shear action, thereby thereby prevents to produce the antifouling property of concentration polarization phenomenon and the pollution abatement thing absorption on film improvement film.
Further, described membrane module can be ultrafiltration, nanofiltration or reverse osmosis membrane, and its shape is cylindrical or square.
Further, the dense water export mouth of described container is positioned at the container bottom and becomes clinodiagonal to lay with original water inlet, and establishes circulation pipe between dense water export mouth and the original water inlet and be connected.
The present invention discloses a kind of pollution-resistant membrane device, mainly form by container and the membrane module that is positioned at container center, former water is imported along the periphery tangential direction to inside by external container, and the eddy flow that formation has velocity gradient downwards in container, the container top is provided with raw water inlet, dense water delivery port is arranged on the container below and becomes the clinodiagonal place with water inlet, former water is imported from external container along the periphery tangential direction by water inlet and continues to filter, dense water is discharged from delivery port, and the present invention has following useful effect:
1), film device of the present invention, do not have the required swirling motion of moving component to form by fluid itself, simple in structure, cost is low;
2), the present invention can improve antifouling property, keep high flux for a long time, prevents former water short stream in container, improves the water rate of recovery, reduces cleaning frequency membrane, prolongs film service life;
3), the present invention utilizes biological pollutant and all size particle in the former water to make near the pollutant of central mode assembly keep the low concentration state to the migration of putamina wall;
4), the former glassware for drinking water of the present invention have velocity gradient eddy flow produced to the horizontal and vertical cross-flow shear action of film, make pollutant more difficult attached to the film surface;
5), the former glassware for drinking water of the present invention has the eddy flow of velocity gradient can prevent that former water middle part weak point that forms in putamina from flowing, and makes full use of effective usable floor area of film, raising film separative efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the former water eddy flow of a present invention schematic diagram.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment: see also Fig. 1 and Fig. 2, in the drawings, 1 is membrane module.2 for being the container at center with membrane module 1, or be called putamina.3 go out pipe for concentrated water drainage.4 is former water water inlet pipe.5 is circulation pipe, and it connects concentrated water drainage and goes out Guan Yuyuan water water inlet pipe.
Former water is to be that outside from the top of container 2 imports along the periphery tangential direction to inside by water inlet pipe 4, and water inlet pipe goes out to manage 3 one-tenth clinodiagonal settings with concentrated water drainage, and as Fig. 1, shown in Figure 2.Be directed to the former water in the container 2, form very high angular speed at internal tank.From top to bottom along with the reducing of vessel radius, rotary speed is increasing for former water, and solid is different because of the centrifugal inertial force that density contrast produces with liquid, and the solid particle that density is big is thrown toward the putamina wall, and the little liquid of density is then near the membrane module that is positioned at the putamina center.Gu when particle is thrown toward the putamina wall, also move downward along the putamina wall is spiral, going out pipe 3 from concentrated water drainage at last derives, and forms the eddy flow that has velocity gradient as shown in Figure 2.
Therefore, biological pollutant in the former water and all size particle will make near central mode assembly 1 pollutant keep the low concentration state to the migration of putamina wall; Have simultaneously velocity gradient eddy flow produced to the horizontal and vertical cross-flow shear action of film, make pollutant more difficult attached to the film surface; In addition, the eddy flow with velocity gradient can prevent to form local short stream during former water is in putamina, makes full use of effective usable floor area of film, improves the film separative efficiency.
Therefore the present invention can guarantee long-term high water flux, reduces cleaning frequency membrane, prolongs the service life of film, improves the rate of recovery of handling water, reduces cost.
According to the inventor's experiment, be the surface water filtration test that 0.2 μ m filter membrane contrasts different kit forms adopting same aperture.It is constant that the rate of filtration is set at 5m3/h(), investigate pressure reduction and rise to the needed time of 10kPa, need 5h at the eddy flow assembly, and traditional components needs 40 ~ 50 minutes.
The invention discloses a kind of method of pollution-resistant membrane device design, mainly form by container 2 and the membrane module 1 that is positioned at container center, former water is imported along the periphery tangential direction to inside by external container, and forms the eddy flow that has velocity gradient downwards in container, wherein:
1. described pollution-resistant membrane assembly mainly is made up of container 2 and the membrane module 1 that is positioned at container center, and former water is imported along the periphery tangential direction to inside by external container, and forms the eddy flow that has velocity gradient downwards in container;
2. described pollution-resistant membrane assembly, the container top is provided with raw water inlet, and dense water delivery port is arranged on the container below and becomes the clinodiagonal place with water inlet, and former water is imported from external container along the periphery tangential direction by water inlet and continues to filter, and dense water is discharged from delivery port;
3. described pollution-resistant membrane assembly, described container are inverted cone or rounding stage body, and the angle that at the bottom of the top is end face and chamber wall is 0-90 °, preferred 45-85 °, make former water form the eddy flow that has velocity gradient downwards in container;
4. described pollution-resistant membrane assembly, the membrane module 1 that is positioned at container center can be ultrafiltration, nanofiltration and reverse osmosis membrane, membrane module is cylindrical or square, preferably drum shape.
Utilize the membrane module of the method for the invention preparation, do not have the required swirling motion of moving component to be formed by fluid itself, simple in structure, cost is low;
Utilize the membrane module of the method for the invention preparation, can improve antifouling property, keep high flux for a long time, prevent former water short stream in container, improve the water rate of recovery, reduce cleaning frequency membrane, prolong film service life.
Container in the present specification also is referred to as putamina owing to be arranged on outside the membrane module, is indication at Fig. 1 and Fig. 2 label 2.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (7)
1. the pollution-resistant membrane device of an improvement is characterized in that comprising:
One container;
One membrane module, it is arranged on the container center axis, the container upper portion side wall is provided with original water inlet, former water imports along all tangential directions of container to container intracavity, and form the eddy flow that has acceleration downwards at internal tank, filtered water through membrane module is derived by container top, and the dense water of generation is derived from the container lower sides.
2. the pollution-resistant membrane device of a kind of improvement according to claim 1, it is characterized in that: described container is an inverted cone, former water imports along container periphery tangential direction to container intracavity, former water from top to bottom reduces the eddy flow that the increasing formation of rotary speed has velocity gradient along with vessel radius.
3. the pollution-resistant membrane device of a kind of improvement according to claim 1, it is characterized in that: described container is the rounding stage body, former water imports along container periphery tangential direction to container intracavity, former water from top to bottom reduces the eddy flow that the increasing formation of rotary speed has velocity gradient along with vessel radius.
4. according to the pollution-resistant membrane device of claim 2 or 3 described a kind of improvement, it is characterized in that: described inverted cone or rounding stage body, the end face of two containers and the angle of chamber wall are 45o～85o, import former water and can in container, form eddy flow with velocity gradient, solid is different because of the centrifugal inertial force that density contrast produces with liquid in the former water, the solid particle that density is big is thrown toward chamber wall, the then close membrane module that is positioned at center membrane of the liquid that density is little, Gu also move downward when particle is thrown toward chamber wall, derive from dense water delivery line at last along chamber wall is spiral.
5. the pollution-resistant membrane device of a kind of improvement according to claim 1, it is characterized in that: former water forms the eddy flow with velocity gradient in the described container, laterally and on the longitudinal direction have strong shear action, thereby thereby preventing to produce the antifouling property of concentration polarization phenomenon and the pollution abatement thing absorption on film improvement film.
6. the pollution-resistant membrane device of a kind of improvement according to claim 1, it is characterized in that: described membrane module can be ultrafiltration, nanofiltration or reverse osmosis membrane, and its shape is cylindrical or square.
7. the pollution-resistant membrane device of a kind of improvement according to claim 1 is characterized in that: the dense water export mouth of described container is positioned at the container bottom and becomes clinodiagonal to lay with original water inlet, and establishes circulation pipe between dense water export mouth and the original water inlet and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100538025A CN102166479A (en) | 2011-03-07 | 2011-03-07 | Improved antipollution membrane device |
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|---|---|---|---|
| CN2011100538025A CN102166479A (en) | 2011-03-07 | 2011-03-07 | Improved antipollution membrane device |
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| CN102166479A true CN102166479A (en) | 2011-08-31 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803680A (en) * | 2014-03-10 | 2014-05-21 | 仲杏英 | Membrane type sewage filtering system |
| CN107098488A (en) * | 2017-04-15 | 2017-08-29 | 江苏龙腾工程设计股份有限公司 | Swirl-type filter and its method for purifying sewage |
| CN107158954A (en) * | 2017-05-04 | 2017-09-15 | 广东韦博科技有限公司 | A kind of rolled membrane module |
| CN108636120A (en) * | 2018-05-29 | 2018-10-12 | 珠海市江河海水处理科技股份有限公司 | Spiral-flow type accurate filter |
| CN111718044A (en) * | 2020-06-30 | 2020-09-29 | 柳州潜荣健康产业有限公司 | A pure water treatment system for gardenia jasminoides ellis extract product |
| CN113562811A (en) * | 2021-08-30 | 2021-10-29 | 海南立昇净水科技实业有限公司 | Membrane filtration system and method for operating the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622919A (en) * | 2002-01-09 | 2005-06-01 | 比吉尔·尼尔森 | Equipment and method for separating and filtering particles and biosome from flowing liquid |
| WO2005092801A1 (en) * | 2004-03-29 | 2005-10-06 | Organo Corporation | Process for producing ship ballast water, ship ballast water producing apparatus and use thereof |
| WO2005110928A1 (en) * | 2004-05-19 | 2005-11-24 | Organo Corporation | Production method of ballast water for vessel, production system of ballast water for vessel and use |
| CN1958114A (en) * | 2006-10-23 | 2007-05-09 | 大庆油田有限责任公司 | Rotational flow microporous filter |
| CN101405225A (en) * | 2006-03-16 | 2009-04-08 | 三井造船株式会社 | Membrane treatment method and membrane treatment equipment employing membrane module |
| CN201969501U (en) * | 2011-03-07 | 2011-09-14 | 厦门绿邦膜技术有限公司 | Improved anti-pollution film device |
-
2011
- 2011-03-07 CN CN2011100538025A patent/CN102166479A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622919A (en) * | 2002-01-09 | 2005-06-01 | 比吉尔·尼尔森 | Equipment and method for separating and filtering particles and biosome from flowing liquid |
| WO2005092801A1 (en) * | 2004-03-29 | 2005-10-06 | Organo Corporation | Process for producing ship ballast water, ship ballast water producing apparatus and use thereof |
| WO2005110928A1 (en) * | 2004-05-19 | 2005-11-24 | Organo Corporation | Production method of ballast water for vessel, production system of ballast water for vessel and use |
| CN101405225A (en) * | 2006-03-16 | 2009-04-08 | 三井造船株式会社 | Membrane treatment method and membrane treatment equipment employing membrane module |
| CN1958114A (en) * | 2006-10-23 | 2007-05-09 | 大庆油田有限责任公司 | Rotational flow microporous filter |
| CN201969501U (en) * | 2011-03-07 | 2011-09-14 | 厦门绿邦膜技术有限公司 | Improved anti-pollution film device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803680A (en) * | 2014-03-10 | 2014-05-21 | 仲杏英 | Membrane type sewage filtering system |
| CN103803680B (en) * | 2014-03-10 | 2015-10-14 | 广西桦源水处理设备有限公司 | Membrane type sewage filter system |
| CN107098488A (en) * | 2017-04-15 | 2017-08-29 | 江苏龙腾工程设计股份有限公司 | Swirl-type filter and its method for purifying sewage |
| CN107158954A (en) * | 2017-05-04 | 2017-09-15 | 广东韦博科技有限公司 | A kind of rolled membrane module |
| CN108636120A (en) * | 2018-05-29 | 2018-10-12 | 珠海市江河海水处理科技股份有限公司 | Spiral-flow type accurate filter |
| CN111718044A (en) * | 2020-06-30 | 2020-09-29 | 柳州潜荣健康产业有限公司 | A pure water treatment system for gardenia jasminoides ellis extract product |
| CN111718044B (en) * | 2020-06-30 | 2021-01-12 | 柳州潜荣健康产业有限公司 | A pure water treatment system for gardenia jasminoides ellis extract product |
| CN113562811A (en) * | 2021-08-30 | 2021-10-29 | 海南立昇净水科技实业有限公司 | Membrane filtration system and method for operating the same |
| CN113562811B (en) * | 2021-08-30 | 2024-04-12 | 海南立昇净水科技实业有限公司 | Membrane filtration system and method of operating the same |
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Application publication date: 20110831 |