CN103041708A - High-pollution-resistance roll type membrane component - Google Patents
High-pollution-resistance roll type membrane component Download PDFInfo
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- CN103041708A CN103041708A CN2012105826292A CN201210582629A CN103041708A CN 103041708 A CN103041708 A CN 103041708A CN 2012105826292 A CN2012105826292 A CN 2012105826292A CN 201210582629 A CN201210582629 A CN 201210582629A CN 103041708 A CN103041708 A CN 103041708A
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Abstract
The invention relates to a high-pollution-resistance roll type membrane component. The high-pollution-resistance roll type membrane component comprises a central water production pipe and multile layers of membranes (1) wound on the central water production pipe, and also comprises an isolating layer (2) and a supporting bodies (3), wherein the isolating layer (2) and the supporting bodies (3) which are integrally formed are positioned between adjacent two membranes (1); the supporting bodies (3) on the two sides of the isolating layer (2) are staggered; the membranes (1), the isolating layer (2) and the adjacent two supporting bodies (3) form a fluid channel (4); the fluid channel (4) adopts a trapezoidal structure; the length range of the edge length b is 2.0 to 3.0 mm; the length range of the edge length a is 1.5 to 2.5 mm; the length range of the upper and lower edge distance 1 to 2 mm; and the length range of the short edge d of the supporting bodies (3) is 0.5 to 1 mm. The high-pollution-resistance roll type membrane component has the advantages of few detained and accumulated impurities, small membrane pollution total amount, stable membrane flux, long washing interval period, long service life and firm adhesion between the supporting bodies and the membranes.
Description
Technical field
The present invention relates to the membrane separation technique field, particularly a kind of high antipollution rolled film element.
Background technology
Membrane separation technique is the separation technology of a kind of high-efficient energy-saving environment friendly of being developed rapidly after the sixties in 20th century, and the solvents that its utilizes " screening " principle to reach the different molecular weight size separates, purifies and concentrates.Compare with traditional lock out operation, have that energy consumption is low, molecule rank separation accuracy is high, the characteristics such as non-secondary pollution, technique are simple, easy operating and automation control, be suitable for heat sensitive material, without phase transformation with without the separation process of chemical change, can partly replace traditional filtering, resin adsorption, condensation, recrystallization, activated carbon decolorizing, distillation and extraction etc. and separate technology, in separation engineering, have a very important role.Be widely used in the fields such as the energy, electronics, oil, chemical industry, medical and health, heavy industry, light industry, food, beverage, environmental protection, produced significant economic and social benefit.
It is component is had the selective film of function that sees through as separating medium that film separates, apply motive force in the film both sides, make some the compositional selecting ground in the material to be separated see through film, realize the separation of material component, thus the separation process of the functions such as the extraction of realize target thing, concentrated, purifying.Traditional rolled film is because water inlet flow channel adopts grid type (parallel or diamond structure pad net) structure more, although can regulate the warp of water inlet flow-guiding screen and the angle of parallel, but exist all the time into the water dead angle, be easy to cause membrane component to be blocked up by dirt, the decline of membrane flux is very fast.For addressing this problem, the conventional film element is also set about from the size of runner, increases water inlet flow channel, so traditional runner has following several specification: 0.71mm, 0.79mm, 1.17mm, 1.19mm, 1.65mm, 2.03mm etc.Even done such improvement, adopt the film of maximum specification runner, but because runner pad net is network structure, still there is the problem of being detained and stopping impurity, carrying out high solids content, high suspended matter, still can not solve the membrane component pollution problem during full-bodied feed separation at all, the Chemical cleaning of simultaneously also having to frequently carry out, and since traditional membrane component structural design so that membrane washing is difficult, efficient is low, clean not thorough, the performance recovery of membrane component is poor, thus the long life of membrane component be no more than 1 year, even cause the effective time of film system usually also short than the Chemical cleaning time.
A kind of rolled film element is disclosed in the Chinese patent 201020132697.5, comprise the film bag, charging runner net, central tube and the outer net that are provided with between the diffusion barrier through liquid runner net, described film bag and charging runner net around described central tube screw winding, form cylindric membrane component main body with the lamination form.The warp of its water inlet flow-guiding screen and the angular range of parallel are 10 °～90 °, and the ratio of warp and parallel diameter is 1:1～1000.The shell of this rolled film element has strengthened structural strength with the fiberglass enhancement Layer, satisfies separation and system's virus killing requirement of high temperature, high viscosity feed liquid.The utility model with the angle of the warp of water flow-guiding screen and parallel with and diameter proportion improve, but because the water flow-guiding screen remains network structure, still there is the problem of being detained impurity, carry out for a long time high solids content, high suspended matter, full-bodied feed separation and still can't solve the with serious pollution problem of membrane component, cause the cleaning frequency of membrane component to be accelerated, further so that shorten the service life of membrane component.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide a kind of impurity to be detained and accumulation less, little, the membrane flux of film total amount of pollutants discharge steadily, bonding firmly high antipollution rolled film element between long, long service life of Clean after every cycle and supporter and the diaphragm.
Purpose of the present invention is achieved through the following technical solutions: a kind of high antipollution rolled film element, it comprises center water producing pipe and the Multilayer Film that is wrapped on the water producing pipe of center, it also comprises separation layer and supporter, separation layer and a plurality of supporter are the integral type structure, a plurality of supporters evenly are arranged on the both sides of separation layer, stagger in the supporter position of separation layer both sides; Integrated separation layer and supporter are between the adjacent two layers diaphragm, and end face and the diaphragm of supporter are adhesively fixed, the length of separation layer and the equal in length of diaphragm; Diaphragm, separation layer and adjacent two supporters form a fluid passage.
The length of side that the length of side that described supporter contacts with separation layer contacts with diaphragm greater than supporter.
Described fluid passage is trapezium structure, the fluid passage is 2.0～3.0mm near the length range of the side length b of diaphragm, the fluid passage is 1.5～2.5mm near the length range of the length of side a of separation layer, and the length range of the upper bottom margin c of the fluid passage of trapezium structure is 1.0～2.0mm.
The length range of the minor face d of described supporter is 0.5～1.0mm.
The present invention has the following advantages:
1, supporter is the through type trapezium structure, no longer include the dead angle in the trapezoidal runner that forms with separation layer and diaphragm, feed liquid is without delay, do not have the residual of material or impurity, the feed liquid that the high dense material on film surface is very easily newly entered is washed away at a high speed and is left the film surface, reduces impurity or material and is deposited on the film surface, prolong the cleaning frequency, solved simultaneously that diaphragm impurity trapped or material are too fast and the concentration polarization phenomenon that forms has reduced the dirty stifled probability of membrane component, so that membrane flux is more stable.
2, the flux of the membrane component rate of decay in time is slow, prolong the effective time of membrane component, reduced cleaning frequency, avoided frequent Chemical cleaning to the damage and fracture of membrane component, prolong the service life of membrane component, improved the economic benefit of membrane separation technique.
3, the fluid channel structure of membrane component is designed to trapezium structure, is more conducive to the cleaning of membrane component, makes membrane washing more thorough, and the membrane flux resume speed is faster, has increased the effective time of membrane component.
4, be adhesively fixed between supporter and the diaphragm, and the contact width scope that guarantees supporter and membrane surface is between 0.5～1.0mm, so that supporter and diaphragm on being wrapped in the center water producing pipe time, can not should be bending stress and come off, bonding more firm.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is the A-A cross-sectional schematic of Fig. 1
Fig. 3 is the local enlarged diagram of working state structure of the present invention
Fig. 4 is the change curve of the membrane flux of common pad web frame runner membrane component
Fig. 5 is membrane flux change curve of the present invention
Among the figure: 1-diaphragm, 2-separation layer, 3-supporter, 4-fluid passage.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to the following stated.
As depicted in figs. 1 and 2, a kind of high antipollution rolled film element, it comprises center water producing pipe and the Multilayer Film 1 that is wrapped on the water producing pipe of center, it also comprises separation layer 2 and supporter 3, separation layer 2 is the integral type structure with a plurality of supporters 3, a plurality of supporters 3 evenly are arranged on the both sides of separation layer 2, stagger in supporter 3 positions of separation layer 2 both sides; Integrated separation layer 2 and supporter 3 are between adjacent two layers diaphragm 1, and the end face of supporter 3 and diaphragm 1 are adhesively fixed, the equal in length of the length of separation layer 2 and diaphragm 1; Diaphragm 1, separation layer 2 and adjacent two supporters 3 form a fluid passage 4; The length of side that the length of side that supporter 3 contacts with separation layer 2 contacts with diaphragm 1 greater than supporter 3; Fluid passage 4 is trapezium structure, fluid passage 4 is 2.0～3.0mm near the length range of the side length b of diaphragm 1, fluid passage 4 is 1.5～2.5mm near the length range of the length of side a of separation layer 2, and the length range of the upper bottom margin c of the fluid passage 4 of trapezium structure is 1.0～2.0mm; The length range of the minor face d of supporter 3 is 0.5～1.0mm.
Wherein: the material of separation layer 2 and supporter 3 is any one in polysulfones, polyethylene, polyether sulfone, the Kynoar.
As shown in Figure 3, diaphragm 1 and integrated separation layer 2 and supporter 3 successively twisting cohesion on the water producing pipe of center, feed liquid imports fluid passage 4 after entering film device by charging pump, when feed liquid flows through in fluid passage 4, high solids content, high suspended matter, full-bodied material is attached to the surface of diaphragm 1, reaching solvents separates, purify and concentrated effect, has the feed liquid of certain flow rate to being attached to before this high solids content on diaphragm 1 surface in the fluid passage 4 simultaneously, high suspended matter, full-bodied material washes away, reduce the dirty stifled probability of membrane component, so that membrane flux is more stable.
Fig. 4 is the change curve of the membrane flux of common pad web frame runner membrane component, as can be seen from the figure, in the starting stage that membrane component is come into operation, membrane flux is larger, but As time goes on, membrane flux descends very fast, and membrane flux is very unstable, illustrates that the tired speed of impurity is fast and many, solve the little problem of membrane flux, just must clean continually membrane component, however Chemical cleaning frequently, so that shorten significantly the service life of membrane component.
Fig. 5 is membrane flux change curve of the present invention, as can be seen from the figure, within the effective time of whole membrane component, the amplitude of variation of membrane flux is less, membrane flux is steady, illustrates that the amount that impurity is trapped in the fluid passage is very little, like this so that the contaminated degree of diaphragm is little, the Clean after every cycle increases, and has also increased the effective time of membrane component the service life that increases membrane component.
Claims (4)
1. one kind high antipollution rolled film element, it comprises center water producing pipe and the Multilayer Film (1) that is wrapped on the water producing pipe of center, it is characterized in that: it also comprises separation layer (2) and supporter (3), separation layer (2) is the integral type structure with a plurality of supporters (3), a plurality of supporters (3) evenly are arranged on the both sides of separation layer (2), stagger in supporter (3) position of separation layer (2) both sides; Integrated separation layer (2) and supporter (3) are positioned between the adjacent two layers diaphragm (1), and the end face of supporter (3) and diaphragm (1) are adhesively fixed, the equal in length of the length of separation layer (2) and diaphragm (1); Diaphragm (1), separation layer (2) and adjacent two supporters (3) form a fluid passage (4).
2. a kind of high antipollution rolled film element according to claim 1 is characterized in that: the length of side that the length of side that described supporter (3) contacts with separation layer (2) contacts with diaphragm (1) greater than supporter (3).
3. a kind of high antipollution rolled film element according to claim 1, it is characterized in that: described fluid passage (4) are trapezium structure, fluid passage (4) is 2.0～3.0mm near the length range of the side length b of diaphragm (1), fluid passage (4) is 1.5～2.5mm near the length range of the length of side a of separation layer (2), and the length range of the upper bottom margin c of the fluid passage of trapezium structure (4) is 1.0～2.0mm.
4. a kind of high antipollution rolled film element according to claim 1 and 2, it is characterized in that: the length range of the minor face d of described supporter (3) is 0.5～1.0mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210582629.2A CN103041708B (en) | 2012-12-28 | 2012-12-28 | High-pollution-resistance roll type membrane component |
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| CN201210582629.2A CN103041708B (en) | 2012-12-28 | 2012-12-28 | High-pollution-resistance roll type membrane component |
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| CN103041708A true CN103041708A (en) | 2013-04-17 |
| CN103041708B CN103041708B (en) | 2015-01-07 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771692A (en) * | 2016-05-23 | 2016-07-20 | 常州回天新材料有限公司 | Anti-blocking PVDF film for water treatment |
| CN105921035A (en) * | 2016-05-23 | 2016-09-07 | 常州回天新材料有限公司 | Sludge-preventing type PVDF film for water treatment |
| CN106315762A (en) * | 2016-08-18 | 2017-01-11 | 北京碧水源膜科技有限公司 | Corrugation membrane, spiral membrane component thereof and filtering method |
| CN106630290A (en) * | 2016-12-26 | 2017-05-10 | 四川绿沃创新环保工程有限公司 | Treatment and recovery method of graphene acid-containing wastewater |
| CN106721764A (en) * | 2016-12-26 | 2017-05-31 | 成都连接流体分离科技有限公司 | A kind of method of reverse osmosis membrane assembly continuous concentration fruit juice |
| CN106925128A (en) * | 2016-05-23 | 2017-07-07 | 中科瑞阳膜技术（北京）有限公司 | A kind of membrane bioreactor and its rolled membrane module |
| CN109169911A (en) * | 2018-09-19 | 2019-01-11 | 成都连接流体分离科技有限公司 | A kind of new process producing highly active protein, low-lactose milk |
| CN109355440A (en) * | 2018-11-16 | 2019-02-19 | 成都连接流体分离科技有限公司 | A kind of system and technique of continuous film production beet sugar |
| CN110975643A (en) * | 2019-12-19 | 2020-04-10 | 时代沃顿科技有限公司 | Concentrated water separation net of roll type membrane element |
| CN115518219A (en) * | 2022-08-30 | 2022-12-27 | 四川大学华西医院 | Low-capacity activated leukocyte adsorber |
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Patent Citations (7)
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771692A (en) * | 2016-05-23 | 2016-07-20 | 常州回天新材料有限公司 | Anti-blocking PVDF film for water treatment |
| CN105921035A (en) * | 2016-05-23 | 2016-09-07 | 常州回天新材料有限公司 | Sludge-preventing type PVDF film for water treatment |
| CN106925128A (en) * | 2016-05-23 | 2017-07-07 | 中科瑞阳膜技术（北京）有限公司 | A kind of membrane bioreactor and its rolled membrane module |
| CN106315762A (en) * | 2016-08-18 | 2017-01-11 | 北京碧水源膜科技有限公司 | Corrugation membrane, spiral membrane component thereof and filtering method |
| CN106315762B (en) * | 2016-08-18 | 2019-04-26 | 北京碧水源膜科技有限公司 | A kind of ripple film and its wound membrane element and filter method |
| CN106630290A (en) * | 2016-12-26 | 2017-05-10 | 四川绿沃创新环保工程有限公司 | Treatment and recovery method of graphene acid-containing wastewater |
| CN106721764A (en) * | 2016-12-26 | 2017-05-31 | 成都连接流体分离科技有限公司 | A kind of method of reverse osmosis membrane assembly continuous concentration fruit juice |
| CN109169911A (en) * | 2018-09-19 | 2019-01-11 | 成都连接流体分离科技有限公司 | A kind of new process producing highly active protein, low-lactose milk |
| CN109355440A (en) * | 2018-11-16 | 2019-02-19 | 成都连接流体分离科技有限公司 | A kind of system and technique of continuous film production beet sugar |
| CN109355440B (en) * | 2018-11-16 | 2023-09-05 | 四川绿沃创新环保工程有限公司 | System and process for producing beet sugar by continuous film |
| CN110975643A (en) * | 2019-12-19 | 2020-04-10 | 时代沃顿科技有限公司 | Concentrated water separation net of roll type membrane element |
| CN115518219A (en) * | 2022-08-30 | 2022-12-27 | 四川大学华西医院 | Low-capacity activated leukocyte adsorber |
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Effective date of registration: 20200320 Address after: Room 59887, Building 3, 1800, Panyuan Road, Changxing Town, Chongming District, Shanghai (Shanghai Tai and Economic Development Zone) Patentee after: Shanghai Chengzhou Science and Technology Center (L.P.) Address before: 610032 No. three, No. two, West Ring Road, Chengdu, Sichuan, 17 Patentee before: CHENGDU LIANJIE MEMBRANE TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20211216 Address after: No.269, Gangtong North Third Road, north area of Chengdu modern industrial port, Pixian County, Chengdu, Sichuan 610000 Patentee after: CHENGDU LIANJIE MEMBRANE TECHNOLOGY Co.,Ltd. Address before: Room 59887, building 3, no.1800, Panyuan Road, Changxing Town, Chongming District, Shanghai (Shanghai Taihe Economic Development Zone) Patentee before: Shanghai Chengzhou Science and Technology Center (L.P.) |
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