CN108993166A - A kind of pollution-resistant rolled film water conservancy diversion filter - Google Patents

A kind of pollution-resistant rolled film water conservancy diversion filter Download PDF

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Publication number
CN108993166A
CN108993166A CN201810921560.9A CN201810921560A CN108993166A CN 108993166 A CN108993166 A CN 108993166A CN 201810921560 A CN201810921560 A CN 201810921560A CN 108993166 A CN108993166 A CN 108993166A
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China
Prior art keywords
adjacent
lateral
several
lengthways
pollution
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CN201810921560.9A
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CN108993166B (en
Inventor
朱丽香
曾嘉才
姚萌
洪昱斌
蓝伟光
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Suntar Membrane Technology Xiamen Co Ltd
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Suntar Membrane Technology Xiamen Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02Membrane cleaning or sterilisation ; Membrane regeneration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Abstract

The invention discloses a kind of pollution-resistant rolled film water conservancy diversion filters, between adjacent two diaphragm of rolled film, it is characterised in that: are interwoven including several lengthways of rod, several lateral ribs and several lateral flexibility silk ribbons.The present invention substitutes traditional hard rib using flexible filaments band, and there are redundant lengths, and under the conditions of current scour, lateral flexibility silk ribbon generates shake, on the one hand aggravates water flow turbulence, improves mass-transfer efficiency, increases membrane flux;Film surface is cleaned in the shake of another aspect flexible filaments band, the pollutant for being attached to film surface can be cleaned and be patted, greatly improve the antifouling property of film.

Description

A kind of pollution-resistant rolled film water conservancy diversion filter
Technical field
The invention belongs to Spiral-wound membrane technology fields, and in particular to a kind of pollution-resistant rolled film water conservancy diversion filter.
Background technique
With the development of film science and technology, application of membrane field is more and more extensive, and application field is gradually deep into drink With the multiple fields such as water, boiler feedwater, medicine, food, bitter desalination and Industrial Wastewater Treatment, especially rolling membrane element Part, since its compact design, cheap price make it occupy most of market share.But due to the complicated component of stoste And the impurity such as suspended matter and colloid are usually contained, therefore stoste is needed by stringent pretreatment, and nonetheless, the stream of rolled film Road is still easy blocking, and membrane pressure difference is caused to increase, and flux decline may also cause irreversible pollution to destroy when serious.Therefore To make rolled film further adapt to the application field of diversification, needs to improve the resistance tocrocking of membrane component, extends membrane component use Service life.Other than improving diaphragm self performance, the design of the component of wound membrane element is mainly reflected in water supply and leads compared to more important In the selection for flowing filter, thickness, twine spacing, immersion angle degree including water supply conductance stream filter, shape of filter twine etc. Design.
The design of filter is concentrated mainly in the shape and arrangement of filter twine in the prior art, such as CN202725044U Disclosed a kind of wide runner flow-guiding screen, including the longitudinal longitudinal rib arranged in parallel of plural item, by plural item between adjacent longitudinal rib Horizontal bar connects, and longitudinal runner is formed between adjacent longitudinal rib, the cross section dimension triangle or isosceles trapezoid of longitudinal rib are lateral Muscle is connected to the middle part of triangle or isosceles trapezoid, not with not this contact, to improve the effective use area of film and make water flow Movable property gives birth to turbulent flow.But the position that the triangle of the patent or isosceles trapezoid are contacted with film surface is more sharp, be easy in operation because Friction causes to be seriously worn to film surface, and the contact surface of longitudinal rib and film not instead of point contact, and face contact, contact surface is larger, Also it be easy to cause the accumulation of suspended matter and colloid near contact surface.CN205550049U discloses a kind of circumferential wide runner rolling Membrane module, producing water water conservancy diversion filter includes lateral rib, lengthways of rod, further includes a plurality of bending fold in corrugated shape structure Vertical rib.Lateral rib connect to form interface point in a crisscross manner with lengthways of rod, the bending end of each vertical rib wherein side It respectively corresponds and is connected with each interface point, form the production water flow passage of Delta Region.The utility model is to the runner filter for producing water side It designs, increases the cross section of fluid channel product for producing water, drop the resistance to water-flow of low-yield water.But the main heap of pollutant of rolled film retention Product does not solve influent side membrane pollution problem in influent side, the improvement for producing water side filter.
Summary of the invention
It is an object of the invention to overcome prior art defect, a kind of pollution-resistant rolled film water conservancy diversion filter is provided.
The specific technical solution of the present invention is as follows:
A kind of pollution-resistant rolled film water conservancy diversion filter, between adjacent two diaphragm of rolled film, including several longitudinal ribs Item, several lateral ribs and several lateral flexibility silk ribbons are interwoven, and the diameter in the section of lengthways of rod is 0.5~3mm, laterally The diameter in the section of rib is 0.1~1.5mm, and the diameter in the section of lateral flexibility silk ribbon is 0.2~1mm;Wherein
Water inlet direction wave-shaped extension of several lengthways of rod between adjacent two diaphragm, this is wavy with multiple companies The loop structure of continuous wave crest and trough, 1.5~5mm of vertical drop between adjacent peaks and trough, the bottom end of trough and one The film surface of diaphragm contacts, and the top of wave crest is contacted with the film surface of another diaphragm, and the spacing of adjacent lengthways of rod is 4~12mm;
Several transverse direction ribs are each perpendicular to above-mentioned water inlet direction to connect several lengthways of rod, and equally spaced from each other parallel; The vertical direction of several lateral flexibility silk ribbons along water inlet directions connects several lengthways of rod, and several lateral flexibility silk ribbons there are Redundant length aggravates water flow turbulence and cleans the film surface of above-mentioned adjacent two diaphragm to generate shake under water impact;And One lateral ribs are set at interval of 2~3 lateral flexibility silk ribbons, spacing and adjacent cross between adjacent lateral flexibility silk ribbon It is equal to the spacing between flexible filaments band and lateral rib.
In a preferred embodiment of the invention, the cross-sectional area of the lateral rib is less than the lengthways of rod Cross-sectional area.
In a preferred embodiment of the invention, the spacing and adjacent transverse direction between adjacent lateral flexibility silk ribbon Spacing between flexible filaments band and lateral rib is 2~10mm.
In a preferred embodiment of the invention, the lateral rib connects in the adjacent peaks and troughs Portion.
In a preferred embodiment of the invention, the lateral flexibility silk ribbon connects the adjacent peaks and troughs Middle part.
In a preferred embodiment of the invention, the lateral flexibility between the middle part of the adjacent peaks and troughs The length of silk ribbon is 6~23mm.
The beneficial effects of the present invention are:
1, pollution-resistant rolled film water conservancy diversion filter of the invention, compared with traditional diamond shape filter or rectangle filter, selection Difference, for traditional filter using hard rib, the position that rib is contacted with film surface is easy to produce filtering dead angle, leads to fouling membrane Aggravation.The present invention retains hard lengthways of rod, reduces part hard transverse direction rib and increases the hard of flexible filaments band substitution parts of traditional Matter rib, and allow silk ribbon there are redundant lengths, under the conditions of current scour, lateral flexibility silk ribbon generates shake, on the one hand aggravates Water flow turbulence improves mass-transfer efficiency, increases membrane flux;Film surface is cleaned in the shake of another aspect flexible filaments band, can will be attached to film The pollutant scouring on surface is patted, and the antifouling property of film is greatly improved.
2, pollution-resistant rolled film water conservancy diversion filter of the invention, lengthways of rod extension wave-shaped, peaks and troughs position It sets and is contacted with film surface, contact point area is small, not will cause filtering dead angle, and the contact position with upper and lower film surface is entirely that point connects Touching, contact area is very small, and membrane pollution problem caused by filtering dead angle is eliminated compared with traditional filter.
Detailed description of the invention
Fig. 1 is lateral structure schematic diagram of the invention.
Fig. 2 is top view of the invention.
Fig. 3 is cross-sectional structure schematic diagram of the invention.
Specific embodiment
Technical solution of the present invention is further explained and described below by way of specific embodiment combination attached drawing.
As shown in Figures 1 to 3, arrow is water inlet direction in figure, and a kind of pollution-resistant rolled film water conservancy diversion filter 1 is set to rolling Between adjacent two diaphragm 2 of film, including several lengthways of rod 11, several lateral ribs 12 and several lateral flexibility silk ribbons 13 interweave It forms;The cross-sectional shape of the transverse direction rib 12 and the lengthways of rod 11 is round or polygon, and lateral rib 12 Cross-sectional area is less than the cross-sectional area of lengthways of rod 11, and the diameter in the section of lengthways of rod is 0.5~3mm, and lateral rib is cut The diameter in face is 0.1~1.5mm, and the diameter in the section of lateral flexibility silk ribbon is 0.2~1mm;;
Water inlet direction wave-shaped extension of several lengthways of rod 11 between adjacent two diaphragm 2, this is wavy with more The loop structure of a continuous wave crest 111 and trough 112,1.5~5mm of vertical drop between adjacent peaks 111 and trough 112 (preferably 2mm);The bottom end of trough 112 is contacted with the film surface of a diaphragm 2, and the top of wave crest 111 and the film surface of another diaphragm 2 connect Touching;Lengthways of rod 11 is point contact with the contact of the film surface of upper layer and lower layer diaphragm 2, and contact surface is very small, is avoided because of rib Dead angle is filtered caused by contacting with film surface;The spacing of adjacent lengthways of rod 11 is 4~12mm (preferably 5mm);
Several transverse direction ribs 12 are each perpendicular to above-mentioned water inlet direction to connect several lengthways of rod 11, and equally spaced from each other flat Row, each transverse direction rib 12;It supports fixed function to lateral 12 one side of rib, and filter is avoided to deform;On the other hand it can effectively cut Water flow is cut, the turbulent extent of water flow is enhanced, improves mass-transfer efficiency.
Vertical direction of several lateral flexibility silk ribbons 13 along water inlet direction connects several lengthways of rod 11, and several transverse directions There are the redundant lengths for the film surface that can contact adjacent two diaphragm 2 for flexible filaments band 13;Under the washing away of water flow, lateral flexibility silk ribbon 13 Shake is generated, water flow turbulence is on the one hand aggravated, improves mass-transfer efficiency, increases membrane flux;Another aspect lateral flexibility silk ribbon 13 exists The surface of the film surface of diaphragm 2 is cleaned in shake, the pollutant on the surface for being attached to the film surface of diaphragm 2 can be cleaned and be patted, Greatly improve the antifouling property of film.
At interval of 2~3 lateral ribs 12 of the setting of lateral flexibility silk ribbon 13 one.And between adjacent lateral flexibility silk ribbon 13 Spacing and adjacent lateral flexibility silk ribbon 13 and lateral rib 12 between spacing it is equal, be 2~10mm (preferably 4mm). The transverse direction rib 12 and the lateral flexibility silk ribbon 13 are all connected with the middle part of the adjacent wave crest 111 and trough 112, and phase The length of lateral flexibility silk ribbon 13 between the middle part of the adjacent wave crest 111 and trough 112 is 6~23mm (preferably 7mm).
The foregoing is only a preferred embodiment of the present invention, the range that the present invention that therefore, it cannot be limited according to is implemented, i.e., Equivalent changes and modifications made in accordance with the scope of the invention and the contents of the specification should still be within the scope of the present invention.

Claims (6)

1. a kind of pollution-resistant rolled film water conservancy diversion filter, between adjacent two diaphragm of rolled film, it is characterised in that: if including Dry lengthways of rod, several lateral ribs and several lateral flexibility silk ribbons are interwoven, and the diameter in the section of lengthways of rod is 0.5~ 3mm, the diameter in the section of lateral rib are 0.1~1.5mm, and the diameter in the section of lateral flexibility silk ribbon is 0.2~1mm;Wherein
Water inlet direction wave-shaped extension of several lengthways of rod between adjacent two diaphragm, this is wavy with multiple continuous The loop structure of wave crest and trough, 1.5~5mm of vertical drop between adjacent peaks and trough, the bottom end of trough and a diaphragm Film surface contact, the top of wave crest contacts with the film surface of another diaphragm, and the spacing of adjacent lengthways of rod is 4~12mm;
Several transverse direction ribs are each perpendicular to above-mentioned water inlet direction to connect several lengthways of rod, and equally spaced from each other parallel;It is several Vertical direction of the lateral flexibility silk ribbon along water inlet direction connects several lengthways of rod, and there are redundancies for several lateral flexibility silk ribbons Length aggravates water flow turbulence and cleans the film surface of above-mentioned adjacent two diaphragm to generate shake under water impact;And every Spacing and adjacent transverse direction between 2~3 lateral ribs of lateral flexibility silk ribbon setting one, adjacent lateral flexibility silk ribbon is soft Spacing between sex pilus band and lateral rib is equal.
2. a kind of pollution-resistant rolled film water conservancy diversion filter as described in claim 1, it is characterised in that: the cross of the transverse direction rib Sectional area is less than the cross-sectional area of the lengthways of rod.
3. a kind of pollution-resistant rolled film water conservancy diversion filter as described in claim 1, it is characterised in that: adjacent lateral flexibility silk The spacing between spacing and adjacent lateral flexibility silk ribbon and lateral rib between band is 2~10mm.
4. a kind of pollution-resistant rolled film water conservancy diversion filter as described in claim 1, it is characterised in that: the transverse direction rib connection The middle part of the adjacent peaks and troughs.
5. a kind of pollution-resistant rolled film water conservancy diversion filter as described in claim 1, it is characterised in that: the lateral flexibility silk ribbon Connect the middle part of the adjacent peaks and troughs.
6. a kind of pollution-resistant rolled film water conservancy diversion filter as claimed in claim 5, it is characterised in that: the adjacent wave crest with The length of lateral flexibility silk ribbon between the middle part of trough is 6~23mm.
CN201810921560.9A 2018-08-14 2018-08-14 Anti-pollution formula roll-type membrane water conservancy diversion separates net Active CN108993166B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113694737A (en) * 2021-08-13 2021-11-26 万华化学集团股份有限公司 Self-cleaning water inlet separation net and application

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113694737A (en) * 2021-08-13 2021-11-26 万华化学集团股份有限公司 Self-cleaning water inlet separation net and application

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