CN206240334U - A kind of slit is aerated rolling hollow fiber uf membrane system - Google Patents
A kind of slit is aerated rolling hollow fiber uf membrane system Download PDFInfo
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- CN206240334U CN206240334U CN201621033769.4U CN201621033769U CN206240334U CN 206240334 U CN206240334 U CN 206240334U CN 201621033769 U CN201621033769 U CN 201621033769U CN 206240334 U CN206240334 U CN 206240334U
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Abstract
A kind of slit is aerated rolling hollow fiber uf membrane system, belongs to water-treatment technology field.Slit aeration rolling hollow fiber ultrafiltration membrane element is connected in the inner chamber of the pressure vessel of tubulose, pressure vessel lower lumen has the microporous aeration disc of rubber, pressure vessel tray bottom connects air inlet, microporous aeration disc top is intake chamber, there is water inlet the side of intake chamber, intake chamber top is that slit is aerated rolling hollow fiber ultrafiltration membrane element, slit aeration rolling hollow fiber ultrafiltration membrane element top is concentrated water room, there is overfall concentrated water room side, collector pipe centered on the center of concentrated water room, the bottom of center collector pipe connects the top surface of intake chamber.The area of the utility model film is big, and the surface of rolling hollow-fibre membrane is waveform, and current coefficient of friction is big, and current easily form turbulent flow on its surface, increases the scouring intensity to film surface, reduces film surface contamination.Rolling hollow-fibre membrane one layer of pure water grid fewer than rolling Flat Membrane, it is not necessary to gluing, so rolling technology is simpler.
Description
Technical field
The utility model is related to a kind of slit aeration rolling hollow fiber uf membrane system, belongs to water-treatment technology field.
Background technology
Milipore filter is Water filter material, is a kind of consistent aperture specification, and nominal pore scope is 0.001-0.02 microns
Micropore filtering film.Appropriate pressure is imposed in the side of film, the hydrone less than aperture can be just passed through, is more than with separating molecular weight
The particle of 500 dalton, particle diameter more than 10 nanometers.Material for manufacturing ultrafiltration is a lot, including：Kynoar (PVDF),
Polyether sulfone (PES), polypropylene (PP), polyethylene (PE), polysulfones (PS), polypropylene nitrile (PAN), polyvinyl chloride (PVC) etc..Due to
Kynoar ultrafiltration performance is more excellent, and water treatment field has been widely used in now.As at present using most
Ultrafiltration membrane material.
The milipore filter that current water process is used is main by two kinds of hollow-fibre membrane and Flat Membrane.Flat Membrane is divided into flat again
With two kinds of rolling.
As the development of society, ecological environment go from bad to worse, green technology originally far can not meet people's demand, surpass
Filter membrane has become important means in water treatment technology.Milipore filter has three species such as hollow fiber film thread and Flat Membrane and rolling
Type.
Rolled film is due to simple efficient molding mode, it has also become the main flow filter core of water filtration counter-infiltration and milipore filter
Structure.Roll-to-roll ultrafiltration membrane component is that constitute super will be in a certain way superimposed by product water flow-guiding screen, ultrafiltration diaphragm, water inlet flow-guiding screen
Filter membrane blade unit, is wrapped on the water producing pipe of center and is formed.Need to fold ultrafiltration diaphragm in coiling process, water conservancy diversion of intaking
Net is located in the water inlet flow channel constituted between the outer surface after ultrafiltration diaphragm is folded, and the product water flow-guiding screen is rolled over positioned at ultrafiltration diaphragm
In the product water flow passage constituted between the inner surface of poststack.This roll-to-roll ultrafiltration membrane component be will produce water flow passage the side of section two and
A side away from center water producing pipe is bonded with glue, product water flow passage is had the pocket towards the opening of center water producing pipe, is surpassed
After center water producing pipe is wound, outer surface is made a roll-to-roll ultrafiltration for cylinder to filter membrane blade unit with outer adhesive tape environmental sealing
Membrane component.
Roll-to-roll ultrafiltration membrane component in the process of running, raw water from the inflow water inlet flow channel of the end face of element, in pressure
In the presence of, a part of water is filtered into produce water through ultrafiltration diaphragm, into the pocket of ultrafiltration film unit, produces water in ultra filtration unit
Along flow-guiding screen helical flow in pocket, finally enter in the water producing pipe of center.It is left unfiltered water, constantly concentration formation is dense
Water flows out along the water inlet flow-guiding screen in water inlet flow channel from the other end of element.
Because the water inlet direction of this roll-to-roll ultrafiltration membrane component is consistent with the direction that concentrated water drainage is removed, runner is wide, flow
Short, the speed intake in runner is slower, and to the scouring force very little of ultrafiltration membrane surface, the mud cake of membrane surface is difficult for drop-off, makes
Into fouling membrane.Meanwhile, the grid being made up of latitude and longitude is set in water inlet flow channel, polluter is easily hung at into water water conservancy diversion grid
On, it is cumulative, block water inlet flow channel.Therefore, film surface is caused easily to be polluted so that the reduction of ultrafiltration membrane elements aquifer yield, longevity
Life shortens.
The content of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of slit aeration rolling hollow fiber ultrafiltration membrane dress
Put.
A kind of slit is aerated rolling hollow fiber uf membrane system, contains slit aeration rolling hollow fiber ultrafiltration membrane unit
Part, slit aeration rolling hollow fiber ultrafiltration membrane element structure be：By a number of Hollow Fiber Ultrafiltration for having a certain length
Film silk is arranged in parallel within table top, and hollow fiber film yarn is individual layer, is left no gaps between hollow fiber film yarn, numerous
Hollow fiber film yarn close-packed arrays, formed a hollow-fibre membrane curtain, hollow fiber film yarn one end sealing, in
Another end opening of fibre ultrafiltration film silk is simultaneously implanted into central tube, the top congruent triangles corrugated plating of hollow-fibre membrane curtain,
The lines of triangular wave card is vertical with the direction of hollow-fibre membrane curtain, and the size of triangular wave card is big with hollow-fibre membrane curtain
It is small consistent, with central tube as the center of circle, the planar membrane module that hollow-fibre membrane curtain and triangular wave card are built up, planar film
To on central tube, multi-turn surround component spiral winding, until hollow-fibre membrane curtain and triangular wave card are all wound into center
Pipe, forms a cylinder, and triangular wave card constitutes intake tunnel between hollow-fibre membrane curtain, and slit aeration rolling is hollow
Cellulosic ultrafiltration membrane component is connected in the inner chamber of the pressure vessel of tubulose, and pressure vessel lower lumen has the micro-pore aeration of rubber
Disk, pressure vessel tray bottom connection air inlet, microporous aeration disc top is intake chamber, and there is water inlet the side of intake chamber, is intake
Room top is that slit is aerated rolling hollow fiber ultrafiltration membrane element, and slit aeration rolling hollow fiber ultrafiltration membrane element top is dense
There is overfall hydroecium, concentrated water room side, and collector pipe centered on the center of concentrated water room, the bottom of center collector pipe connects intake chamber
Top surface.
Triangular wave card replaces with circular arc corrugated plating or the straight corrugated plating of level.The inner chamber of hollow fiber film yarn
It is clear water runner.
The utility model has the advantages that:
1st, the area of film is big, and the area of Flat Membrane is wide for the x long of film, it is contemplated that the semicircle ripple of rolling hollow-fibre membrane curtain
Wave, its area is：X x3.14/2=wide long x long x1.57. wide are the membrane area of rolling hollow-fibre membrane than rolling flat board membrane area
It is big 1.57 times.
2nd, the surface of rolling hollow-fibre membrane is waveform, and current coefficient of friction is big, and current easily form disorderly on its surface
Stream, increases the scouring intensity to film surface, reduces film surface contamination.
3rd, rolling hollow-fibre membrane one layer of pure water grid fewer than rolling Flat Membrane, it is not necessary to gluing, so rolling technology is more
Simply.
4th, because the technique of hollow-fibre membrane is more ripe, so rolling hollow-fibre membrane cost is lower.
5th, the parallel close-packed arrays of rolling hollow-fibre membrane, the fibrous matter such as hair will not be run up on face during operation.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by referring to following detailed description, can more completely more fully understand that this practicality is new
Type and easily learn the adjoint advantage of many of which, but accompanying drawing described herein be used for providing to it is of the present utility model enter one
Step understands that constitute a part of the present utility model, schematic description and description of the present utility model is used to explain this practicality
It is new, do not constitute to improper restriction of the present utility model, such as scheme wherein：
Fig. 1 is that slit of the present utility model is aerated rolling hollow fiber ultrafiltration membrane element cross section structure schematic diagram.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is hollow-fibre membrane curtain structure schematic diagram of the present utility model.
The utility model is further illustrated with reference to the accompanying drawings and examples.
Specific embodiment
Obviously, those skilled in the art belong to this practicality based on many modifications and variations that objective of the present utility model is done
New protection domain.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " " used herein, " one
It is individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that being used in specification of the present utility model
Wording " including " refer to the presence of the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or
Add one or more other features, integer, step, operation, element, component and/or their group.It should be understood that first when claiming
When part, component are "connected" to another element, component, it can be directly connected to other elements or component, or can also
There is intermediary element or component.Wording "and/or" used herein includes one or more associated listing appointing for item
Unit one and all combination.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) have with art of the present invention in those of ordinary skill general understanding identical meaning.Should also
Understand, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or excessively formal implication be explained.
For ease of the understanding to the utility model embodiment, below in conjunction with accompanying drawing done by taking several specific embodiments as an example into
The explanation of one step, and each embodiment does not constitute the restriction to the utility model embodiment.
Embodiment 1：As shown in Figure 1, Figure 2, Figure 3 shows, a kind of slit aeration rolling hollow fiber uf membrane system, contains slit
Aeration rolling hollow fiber ultrafiltration membrane element 11,
As shown in Figure 1, Figure 3, the structure of slit aeration rolling hollow fiber ultrafiltration membrane element 11 is：Hollow fiber ultrafiltration membrane
The inner chamber of silk 1 is clear water runner 2, and a number of hollow fiber film yarn 1 for having certain length is arranged in parallel within table top,
Hollow fiber film yarn 1 is individual layer, is left no gaps between hollow fiber film yarn 1, numerous hollow fiber film yarns 1
Close-packed arrays, form a hollow-fibre membrane curtain, to increase the surface area of hollow-fibre membrane curtain, hollow fiber film yarn 1
One end is sealed, and another end opening of hollow fiber film yarn 1 is simultaneously implanted into central tube 5, the top overlapping of hollow-fibre membrane curtain
Triangular wave card 3, the lines of triangular wave card 3 is vertical with the direction of hollow-fibre membrane curtain, the size of triangular wave card 3
It is in the same size with hollow-fibre membrane curtain, then, with central tube 5 as the center of circle, hollow-fibre membrane curtain is overlapped with triangular wave card 3
The planar membrane module of formation, on planar membrane module spiral winding to central tube, multi-turn surround, until hollow-fibre membrane curtain and triangle
Shape corrugated plating 3 is all wound into central tube 5, forms a cylinder, and triangular wave card 3 is constituted between hollow-fibre membrane curtain
Intake tunnel 4,
The film roll spooled with plastic cloth wraps up firm, prevents loose bundle, a slit aeration rolling hollow fiber ultrafiltration membrane unit
The manufacture of part 11 is completed.
There is one layer of triangular wave card 3 between the hollow fiber film yarn 1 in film roll being two layers, form intake tunnel
4, hollow-fibre membrane curtain is spaced with corrugated plating, and hollow fiber film yarn 1 is curved, and its arc radius constantly increases, and is
One helix.
Compare with rolling Flat Membrane, its water-dilution channel is exactly the inner chamber of hollow fiber film thread, intake tunnel 4 is exactly corrugated plating
The triangular open space of the formation between hollow fiber film thread.
Slit aeration rolling hollow fiber ultrafiltration membrane element 11 is installed in an inner chamber for the pressure vessel of tubulose 6, pressure
The lower lumen of force container 6 has the microporous aeration disc 7 of rubber, the tray bottom of pressure vessel 6 connection air inlet 8, the top of microporous aeration disc 7
It is intake chamber 9, there is water inlet 10 side of intake chamber 9.
The top of intake chamber 9 is slit aeration rolling hollow fiber ultrafiltration membrane element 11,
The top of slit aeration rolling hollow fiber ultrafiltration membrane element 11 is concentrated water room 12, and there is overfall the side of concentrated water room 12
13, collector pipe 14 centered on the center of concentrated water room, the bottom of center collector pipe 14 connects the top surface of intake chamber 9.
Embodiment 2：As shown in Figure 1, Figure 2, Figure 3 shows, a kind of slit aeration rolling hollow fiber uf membrane system, slit aeration
Rolling hollow fiber ultrafiltration membrane, water inlet grid is changed to triangular wave card by planar grid；Hollow fiber film yarn 1 is cavity
Form a clear water runner 2 for milipore filter.Triangular wave card 3 constitutes water inlet between being put into hollow fiber ultrafiltration membrane curtain piece 1
Passage 4.Water inlet flow channel 4 is divided into numerous small flow channels by triangular wave card 3, and the section of each small flow channels is one equilateral
Triangle, the base of equilateral triangle is milipore filter, and equilateral triangle another two side is corrugated plating.Equilateral triangle structure is steady
It is fixed, the summit support both sides fibre ultrafiltration curtain diaphragm 1 of triangular wave card, i.e. not Protective film surface, and by water inlet flow channel 4
Subdivision is divided into the small flow channels of several Hu Bu UNICOMs.Because triangular wave card 3 is supported, the structure of milipore filter is more firm, and it is right to make
Flat Membrane carries out backwash and is possibly realized.The small flow channels being made up of equilateral triangle as slit, narrow slit structure is characterized in increase
The resistance of current is added, membrane component is changed from slight drag water distribution to big resistance water distribution.It is well known that big resistance water distribution makes element
It is more uniform that interior water velocity is distributed.The short circuit of current and channeling in milipore filter post are reduced, makes all milipore filter tables
Face can be subject to the homogeneous shear of current and wash away, and prevent the flow velocity on film surface from differing, and local ultrafiltration membrane surface is because current
Mud cake accumulation caused by speed is too low.Compare secondly with conventional water inlet grid, the surface of triangular wave card 3 is smooth, pollution
Material cannot take root and accumulate on the surface of triangular wave card 3, it is easy to be gone out outside film unit by current, so the slit knot
Structure more preventing membrane pollution.
Conventional roll-to-roll ultrafiltration membrane component is generally horizontal positioned when running, and washes away film surface using high-velocity flow and removes
Fouling membrane.Different from conventional roll milipore filter, membrane component is upright installation when slit aeration rolling hollow fiber ultrafiltration membrane is run,
Go the mode of depollution in addition to current scour, ultrafiltration membrane surface is also washed away using slit aeration process, remove membrane removal adsorption
Sludge.
Slit aeration rolling hollow fiber ultrafiltration membrane element 11 is arranged in the pressure vessel 6 of tubulose, the bottom of pressure vessel 6
The microporous aeration disc 7 of rubber, the bottom connection air inlet 8 of pressure vessel 6, the top of microporous aeration disc 7 is intake chamber 9, intake chamber 9
Side have water inlet 10.The top of intake chamber 9 is slit aeration rolling hollow fiber ultrafiltration membrane element 11.In slit aeration rolling
The top of fibre ultrafiltration membrane component 11 is concentrated water room 12, and there is overfall 13 side of concentrated water room 12.Centered on the center of concentrated water room 12
Collector pipe 14.
When slit aeration rolling rolling hollow fiber ultrafiltration membrane is run, raw water by bottom the side of intake chamber 9 water inlet 10
Into pressure vessel 6, current are flowed up, into slit aeration rolling hollow fiber ultrafiltration membrane element 11.Water is along water inlet flow channel 4
Equilateral triangle slit in flow up, water is contacted with Hollow Fiber Ultrafiltration curtain diaphragm 1, and at center, collector pipe 14 is aspirated
Under the swabbing pressure effect of pump, clear water passes through Hollow Fiber Ultrafiltration curtain diaphragm 1, into rolling hollow fiber ultrafiltration membrane cavity
Inside clear water runner 2, clear water, around the helical flow of center collector pipe 14, finally enters center collection in rolling doughnut cavity inside
Water pipe 14, current continue up flowing in center collector pipe 14, into suction pump.As clear water passes through Hollow Fiber Ultrafiltration curtain
Formula diaphragm 1, raw water is constantly concentrated in equilateral triangle slit, is gradually converted into concentrated water, and the hollow fibre of rolling is aerated from slit
The outflow of dimension ultrafiltration membrane elements 11 top, into concentrated water room 12, flows out from overfall 13.
Embodiment 3：As shown in Figure 1, Figure 2, Figure 3 shows, a kind of slit aeration rolling hollow fiber ultrafiltration membrane, specifically relates to
And water process slit aeration doughnut roll-to-roll ultrafiltration membrane component.
Rolling hollow fibre membrane component its structure is that a number of hollow fiber film yarn for having certain length is parallel
It is arranged on table top, film silk is individual layer, is left no gaps between film silk, to increase the surface area of film silk, numerous film silks are closely arranged
Row, form film silk curtain (see Fig. 3).One end sealing of film silk, another end opening of film silk is simultaneously implanted into central tube.Film silk curtain
Top overlap a corrugated plating, the lines of corrugated plating is vertical with the direction of hollow-fibre membrane curtain, the size and film curtain of corrugated plating
It is in the same size.Then, with central tube as the center of circle, the planar membrane module that hollow-fibre membrane curtain and corrugated plating are built up, spiral
It is wound on central tube, multi-turn surround, until film curtain and corrugated plating are all wound into central tube, a cylinder is formed, with modeling
The film roll wrapping that material cloth is spooled is firm, prevents loose bundle, and a doughnut rolling ultrafiltration membrane manufacture is completed.
It is have one layer of corrugated plating between two layers of hollow fiber film thread in film roll, forms concentrated water passage, hollow-fibre membrane curtain
It is spaced with corrugated plating, hollow fiber film thread is curved, its arc radius constantly increases, is a helix.It is flat with rolling
Plate film compares, and its water-dilution channel is exactly the inner chamber of hollow fiber film thread, concentrated water passage be exactly corrugated plating and hollow fiber film thread it
Between formation triangular open space.
After rolling rolling hollow fiber ultrafiltration membrane operation a period of time, film surface accumulates one layer of mud cake, causes milipore filter
Filtration resistance is increased, and water flow reduces.At this moment need that milipore filter is aerated and is backwashed, to remove the mud on membrane removal surface
Cake.Recover the strainability of milipore filter.It is different from traditional milipore filter perforated pipe aerating regulation mode, slit aeration rolling ultrafiltration membrane
Aeration is to use micro-pore aeration, and the diaphragm material for being aerated panel surface is rubber, is beaten using laser drilling on rubber diaphragm
Go out strip micropore, the micropore is variable micro-hole, usually micropore is closed, and prevents blockage of the micro orifice.During aeration, air enters rubber diaphragm
Bottom, expand rubber diaphragm, micropore opens.Air overflows in microbubble form, is upwardly into the slit of ultrafiltration membrane elements,
Microbubble continues to flow up in slit, the irregular motion of numerous microbubbles, contact-impact, constantly set, forms big
Bubble.Air pocket buoyancy is big, and the rate of climb is fast, and piston flow is formed in the slit conduit of equilateral triangle, promotes air pocket top
The current in portion accelerate flowing.Successively the continuous stream current in slit are divided into intermittent current, i.e. slit by the air pocket of generation
In flow up one section be that one section of current are air-flows, staggeredly rise.The mud cake on film surface is repeatedly subjected to current scour and air-flow
Wash away, by current and the periodic disturbance of air-flow.Particularly the elastic deformation of bubble, makes rolling hollow fiber ultrafiltration membrane surface
Be formed as micro-vibration, when the driving frequency of bubble and the consistent natural frequency of vibration of face, form resonance.Mud cake surface is accelerated to open
Split, come off.Mud cake is rushed out slit, membrane component is flowed out, so as to reach the purpose that milipore filter removes depollution.
The mud cake that comes off on film surface mixes with raw water, constitutes the concentrated water of milipore filter, and concentrated water is entered the concentrated water on top by slit
Room, arranges by outside the concentrated water overfall of concentrated water room side.
Rolling ultrafiltration membrane intake chamber of the present utility model is located at the top of microporous aeration disc, forms a closed space,
The only way of air is to enter ultrafiltration membrane elements, and the outlet outwards do not escaped, all air are forced through membrane component
Slit takes full advantage of the souring of air.Compare with perforated pipe aerating regulation, the loss of flood peak of microporous aeration disc is big, reaches 0.3
Meter water column.The big result of microporous aeration disc resistance be aeration rate between each membrane component than more uniform, membrane component is installed
Horizontal accuracy requirement is low.
The operation of slit aeration rolling rolling hollow fiber ultrafiltration membrane backwash is：Water intaking valve is closed, backwashing pump is opened,
Backwashing water is reversely flowed into membrane component by membrane component center water producing pipe.In ultrafiltration film unit pocket internal helicoid outwardly,
Through ultrafiltration diaphragm, into the slit of water inlet flow channel, the mud cake punching that will be adsorbed on film surface is de-.Generally, backwash same
Shi Jinhang is aerated, and piston flow is formed in slit, and drive membrane vibration accelerates ultrafiltration membrane surface mud cake to come off.After backwash terminates,
Backwash pump and aeration tube air intake valve are closed, stops backwash and aeration, open the bottom draining valve in parallel with water inlet pipe
Door, by the sewage emptying in pressure vessel.
Water inlet grid is changed to triangular wave card by planar grid.Triangular wave card be put into two ultrafiltration film units it
Between, constitute intake tunnel.Water inlet flow channel is divided into numerous small flow channels by triangular wave card, and the section of each small flow channels is
One equilateral triangle.
The small flow channels being made up of equilateral triangle as slit, the feature of narrow slit structure is the increase in the resistance of current, makes
Membrane component is changed from slight drag water distribution to big resistance water distribution.Reduce the short circuit of current and channeling in ultrafiltration film unit.
Membrane component is upright installation when slit aeration rolling hollow fiber ultrafiltration membrane is run, and goes the mode of depollution to remove current
Wash away outer, ultrafiltration membrane surface is also washed away using slit aeration process.
Rolling ultrafiltration membrane intake chamber is located at the top of microporous aeration disc, forms a closed space.With perforated pipe aerating regulation
Compare, the loss of flood peak of microporous aeration disc is big, reaches 0.3 meter water column.The big result of microporous aeration disc resistance is each membrane component
Between aeration rate than more uniform, the horizontal accuracy requirement installed to membrane component is low.
The operation that slit aeration rolling ultrafiltration membrane can be backwashed.Generally, backwash is aerated simultaneously,
Piston flow is formed in slit in membrane component, ultrafiltration diaphragm vibration is driven, accelerates ultrafiltration membrane surface mud cake to come off.
Compare with hollow fiber column type film group device, slit aeration rolling hollow fiber ultrafiltration membrane element overcomes hollow fibre
Easy fracture of wire is tieed up, while the shortcoming of the film silk easy deposition in root.Extend the service life of ultrafiltration film group device.
Compare with flat board film group device, slit aeration rolling hollow fiber ultrafiltration membrane element, unit volume Intimal area is big, produces
Water is high.Next is to use micro-pore aeration, and many slits are formed in membrane component.Make aeration more uniform.Rolling doughnut surpasses
Filter membrane can be backwashed.The drawbacks of overcoming Flat Membrane and can not backwash.
Slit is aerated rolling hollow fiber ultrafiltration membrane efficiency high, and long lifespan is a kind of state-of-the-art water treatment facilities.
Slit milipore filter triangular wave card of the present utility model, can be circular arc corrugated plating, level is straight corrugated plating etc..
As described above, embodiment of the present utility model is explained, but as long as essentially without disengaging
Inventive point of the present utility model and effect can have many deformations, and this is to one skilled in the art apparent
's.Therefore, such variation is also integrally incorporated within protection domain of the present utility model.
Claims (4)
1. a kind of slit is aerated rolling hollow fiber uf membrane system, it is characterised in that surpass containing slit aeration rolling doughnut
Filter membrane component, slit aeration rolling hollow fiber ultrafiltration membrane element structure be：By a number of hollow fibre for having a certain length
Dimension ultrafiltration membrane filaments are arranged in parallel within table top, and hollow fiber film yarn is individual layer, does not stay seam between hollow fiber film yarn
Gap, numerous hollow fiber film yarn close-packed arrays form a hollow-fibre membrane curtain, one end of hollow fiber film yarn
Sealing, another end opening of hollow fiber film yarn is simultaneously implanted into central tube, the top congruent triangles of hollow-fibre membrane curtain
Corrugated plating, the lines of triangular wave card is vertical with the direction of hollow-fibre membrane curtain, the size of triangular wave card and hollow fibre
Dimension film curtain is in the same size, with central tube as the center of circle, the planar film group that hollow-fibre membrane curtain and triangular wave card are built up
Part, on planar membrane module spiral winding to central tube, multi-turn surround, until hollow-fibre membrane curtain is all twined with triangular wave card
Around central tube, a cylinder is formed, triangular wave card constitutes intake tunnel, slit aeration between hollow-fibre membrane curtain
Rolling hollow fiber ultrafiltration membrane element is connected in the inner chamber of the pressure vessel of tubulose, and pressure vessel lower lumen has the micro- of rubber
Hole aeration plate, pressure vessel tray bottom connection air inlet, microporous aeration disc top is intake chamber, and the side of intake chamber has into water
Mouthful, intake chamber top is that slit is aerated rolling hollow fiber ultrafiltration membrane element, slit aeration rolling hollow fiber ultrafiltration membrane element
Top is concentrated water room, and there are overfall, collector pipe centered on the center of concentrated water room, the bottom connection of center collector pipe in concentrated water room side
The top surface of intake chamber.
2. a kind of slit according to claim 1 is aerated rolling hollow fiber uf membrane system, it is characterised in that triangle
Corrugated plating replaces with circular arc corrugated plating or the straight corrugated plating of level.
3. a kind of slit according to claim 1 is aerated rolling hollow fiber uf membrane system, it is characterised in that hollow fibre
The inner chamber for tieing up ultrafiltration membrane filaments is clear water runner.
4. a kind of slit according to claim 1 is aerated rolling hollow fiber uf membrane system, it is characterised in that hollow fibre
Dimension film curtain is spaced with corrugated plating, and hollow fiber film yarn is curved, and arc radius constantly increase, and is a helix.
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| CN111036079A (en) * | 2020-02-17 | 2020-04-21 | 南京壹净新材料科技有限公司 | Hollow fiber membrane module and water purification method |
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| CN112546874B (en) * | 2020-10-30 | 2024-04-16 | 宁波方太厨具有限公司 | Method for manufacturing hollow fiber membrane element |
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