CN103041708B - High-pollution-resistance roll type membrane component - Google Patents

High-pollution-resistance roll type membrane component Download PDF

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Publication number
CN103041708B
CN103041708B CN201210582629.2A CN201210582629A CN103041708B CN 103041708 B CN103041708 B CN 103041708B CN 201210582629 A CN201210582629 A CN 201210582629A CN 103041708 B CN103041708 B CN 103041708B
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China
Prior art keywords
supporter
separation layer
length
diaphragm
membrane component
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Expired - Fee Related
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CN201210582629.2A
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CN103041708A (en
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邱全国
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Chengdu Lianjie Membrane Technology Co ltd
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CHENGDU LIANJIE MEMBRANE TECHNOLOGY Co Ltd
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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

A kind of High-pollution-resisrolle rolle type membrane component
Technical field
The present invention relates to technical field of membrane separation, particularly a kind of High-pollution-resisrolle rolle type membrane component.
Background technology
Membrane separation technique is the separation technology of a kind of high-efficient energy-saving environment friendly developed rapidly after the sixties in 20th century, and it utilizes " screening " principle to reach and is separated the solvents of different molecular weight size, purifies and concentrates.Compared with traditional lock out operation, have that energy consumption is low, molecule rank separation accuracy is high, non-secondary pollution, technique are simple, be easy to the features such as operation and Automated condtrol, be suitable for heat sensitive material, without phase transformation and the separation process without chemical change, can partly replace the isolation technics such as traditional filtering, resin adsorption, condensation, recrystallization, activated carbon decolorizing, distillation and extraction, have a very important role in separation engineering.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, create significant economic and social benefit.
UF membrane is to have the selective film through function to component for separating medium, motive force is applied in film both sides, with making some compositional selecting in material to be separated 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 due to water inlet flow channel many employings grid type (parallel or diamond structure pad net) structure, although the water inlet warp of flow-guiding screen and the angle of parallel can be regulated, but also exist all the time into 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, 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 if 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 membrane component pollution problem during full-bodied feed separation at all, also have to frequently carry out Chemical cleaning simultaneously, and due to traditional membrane component structural design make film cleaning difficulty, efficiency is low, clean not thorough, the performance recovery of membrane component is poor, thus the most long life of membrane component is no more than 1 year, even cause the effective time of membranous system usually also short than the Chemical cleaning time.
A kind of wound membrane element is disclosed in Chinese patent 201020132697.5, comprise the film bag, charging runner net, central tube and the outer net that are provided with permeate runner net between diffusion barrier, described film bag and charging runner net around described central tube screw winding, form cylindric membrane component main body with refracting films.Its water inlet warp of flow-guiding screen and the angular range of parallel are 10 ° ~ 90 °, and the ratio of warp and weft wire diameters is 1:1 ~ 1000.The shell of this wound membrane element, with fiberglass enhancement Layer, enhances structural strength, meets high temperature, the separation of high viscosity feed liquid and system virus killing requirement.The warp of water flow-guiding screen and the angle of parallel and its diameter proportion improve by the utility model, but because water flow-guiding screen remains network structure, still there is the problem of being detained impurity, carry out high solids content, high suspended matter, full-bodied feed separation for a long time and still cannot solve the with serious pollution problem of membrane component, cause the cleaning frequency of membrane component to be accelerated, make shorten the service life of membrane component further.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, provide a kind of impurity to be detained and accumulation less, little, the membrane flux of fouling membrane total amount steadily, Clean after every cycle long, long service life and bonding firmly High-pollution-resisrolle rolle type membrane component between supporter with diaphragm.
Object of the present invention is achieved through the following technical solutions: a kind of High-pollution-resisrolle rolle type membrane component, it comprises center water producing pipe and is wrapped in the Multilayer Film on the water producing pipe of center, it also comprises separation layer and supporter, separation layer and multiple supporter are integral type structure, multiple supporter is evenly arranged on the both sides of separation layer, staggers in the supporter position of separation layer both sides; Integrated separation layer and supporter are between adjacent two layers diaphragm, and end face and the diaphragm of supporter are adhesively fixed, and the length of separation layer is equal with the length of diaphragm; Diaphragm, separation layer and adjacent two supporters form a fluid passage.
The length of side that described supporter contacts with separation layer is greater than the length of side of supporter and film contact.
Described fluid passage is trapezium structure, fluid passage is 2.0 ~ 3.0mm near the length range of the side length b of diaphragm, 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 through type trapezium structure, dead angle is no longer included in the trapezoidal runner formed with separation layer and diaphragm, feed liquid is without delay, there is not the residual of material or impurity, the dense material of height on film surface is very easily washed away at a high speed by the feed liquid newly entered and leaves film surface, reduces impurity or material is deposited on film surface, extend the cleaning frequency, solve diaphragm impurity trapped or the too fast and concentration polarization phenomenon that formed of material simultaneously, reduce the probability that membrane component dirt is stifled, make membrane flux more stable.
2, the flux of the membrane component rate of decay is in time slow, extend the effective time of membrane component, reduce cleaning frequency, avoid the damage and fracture of frequent Chemical cleaning to membrane component, extend the service life of membrane component, improve 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, and make the cleaning of film more thorough, membrane flux resume speed is faster, adds the effective time of membrane component.
4, be adhesively fixed between supporter and diaphragm, and the contact width scope of supporter and membrane surface that ensures is between 0.5 ~ 1.0mm, makes supporter and diaphragm when being wrapped on the water producing pipe of center, can not bending stress be should be and come off, bonding more firm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the A-A cross-sectional schematic of Fig. 1
Fig. 3 is working state structure close-up schematic view of the present invention
Fig. 4 is the change curve of the membrane flux of common pad web frame runner film element
Fig. 5 is membrane flux change curve of the present invention
In figure: 1-diaphragm, 2-separation layer, 3-supporter, 4-fluid passage.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, 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-pollution-resisrolle rolle type membrane component, it comprises center water producing pipe and is wrapped in the Multilayer Film 1 on the water producing pipe of center, it also comprises separation layer 2 and supporter 3, separation layer 2 and multiple supporter 3 are integral type structure, multiple supporters 3 are evenly 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 between adjacent two layers diaphragm 1, and end face and the diaphragm 1 of supporter 3 are adhesively fixed, and the length of separation layer 2 is equal with the length of diaphragm 1; Diaphragm 1, separation layer 2 and adjacent two supporters 3 form a fluid passage 4; The length of side that supporter 3 contacts with separation layer 2 is greater than the length of side that supporter 3 contacts with diaphragm 1; 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, 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, reach solvents to be separated, purify and concentrated effect, there is the feed liquid of certain flow rate to the high solids content being attached to diaphragm 1 surface before this in fluid passage 4 simultaneously, high suspended matter, full-bodied material washes away, reduce the probability that membrane component dirt is stifled, make membrane flux more stable.
Fig. 4 is the change curve of the membrane flux of common pad web frame runner film element, as can be seen from the figure, in the starting stage of being come into operation by membrane component, membrane flux is larger, but As time goes on, flux depression is very fast, and membrane flux is very unstable, illustrates that impurity tires out speed soon and many, solve the problem that membrane flux is little, just must clean membrane component continually, but Chemical cleaning frequently, the service life of membrane component is shortened significantly.
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 fluid passage is very little, makes the contaminated degree of diaphragm little like this, the Clean after every cycle increases, and too increases the effective time of membrane component while the service life increasing membrane component.

Claims (2)

1. a High-pollution-resisrolle rolle type membrane component, it comprises center water producing pipe and is wrapped in the Multilayer Film (1) on the water producing pipe of center, it is characterized in that: it also comprises separation layer (2) and supporter (3), separation layer (2) and multiple supporter (3) are integral type structure, multiple supporter (3) is evenly arranged on the both sides of separation layer (2), staggers in supporter (3) position of separation layer (2) both sides; Integrated separation layer (2) and supporter (3) are positioned between adjacent two layers diaphragm (1), and end face and the diaphragm (1) of supporter (3) are adhesively fixed, and the length of separation layer (2) is equal with the length of diaphragm (1); Diaphragm (1), separation layer (2) and adjacent two supporters (3) form a fluid passage (4); Described 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 described supporter (3) is 0.5 ~ 1.0mm;
Diaphragm (1) and integrated separation layer (2) and supporter (3) successively twisting cohesion on the water producing pipe of center;
The material of separation layer (2) and supporter (3) is any one in polysulfones, polyethylene, polyether sulfone, Kynoar.
2. a kind of High-pollution-resisrolle rolle type membrane component according to claim 1, is characterized in that: the length of side that described supporter (3) contacts with separation layer (2) is greater than the length of side that supporter (3) contacts with diaphragm (1).
CN201210582629.2A 2012-12-28 2012-12-28 High-pollution-resistance roll type membrane component Expired - Fee Related CN103041708B (en)

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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
CN106925128B (en) * 2016-05-23 2023-07-18 中科瑞阳膜技术(北京)有限公司 Membrane bioreactor and coiled membrane assembly thereof
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
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
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
CN110975643B (en) * 2019-12-19 2022-01-21 沃顿科技股份有限公司 Concentrated water separation net of roll type membrane element
CN115518219B (en) * 2022-08-30 2023-06-16 四川大学华西医院 Low-capacity activated leukocyte adsorber

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Effective date of registration: 20200320

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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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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)

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CF01 Termination of patent right due to non-payment of annual fee