CN102658031B - External filtering system for hollow fiber porous membrane bundle and technology thereof - Google Patents
External filtering system for hollow fiber porous membrane bundle and technology thereof Download PDFInfo
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- CN102658031B CN102658031B CN201210128304.7A CN201210128304A CN102658031B CN 102658031 B CN102658031 B CN 102658031B CN 201210128304 A CN201210128304 A CN 201210128304A CN 102658031 B CN102658031 B CN 102658031B
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Abstract
The invention relates to a water processing system and a method of water processing. An external filtering system for a hollow fiber porous membrane bundle comprises a casing, an air inlet, a water inlet and a drain outlet are arranged on the casing, and a frame body and a hollow U-shaped membrane wire are arranged in the casing. The water processing technology corresponding to the water processing system comprises a water producing process and a gas-liquid two-phase washing process. The membrane wire of the external filtering system is not apt to break, and a membrane assembly is long in service life, wash-resisting and good in antifouling effect. The external filtering system and the technology solve the problems that in the prior art, two ends of the membrane wire are fixed, the membrane wire is not apt to shade or vibrate so that vibration washing effect cannot be achieved, stress is not very even, breaking can be generated easily, pollutants are apt to deposit on the root portion of the membrane wire, accordingly service life of the membrane assembly is effected, water quality is not stable, the membrane wire of the water processing system is apt to be blocked, and water processing effect can be influenced.
Description
Technical field
The present invention relates to a kind of method of water treatment system and water treatment, particularly relate to a kind of filtration system and technique of external hollow-fibre membrane porous membrane bundle.
Background technology
The sewage and waste water reuse treatment process process CIMS such as traditional life, industry are complicated, and operational administrative is also pretty troublesome, and its process water water quality is very unstable.The embrane method treatment technology grown up in recent years overcomes the shortcoming and defect of traditional handicraft, and the water quality physical and chemical index after process is improved.In traditional membrane module designs, hollow fiber film thread is loaded in tubular shell, form membrane module, hollow fiber porous film, because of its comparatively rational structure and ripe technique, is widely used in the filtration of various solution, purified treatment, especially the filtration, purification of water.In recent years because application hollow fiber porous film directly filters the needs of ultra, there is a kind of assembly being directly immersed in hollow fiber porous film that former pond or biochemistry pool carry out filtering and forming, be referred to as submerged hollow fiber porous-membrane module.Its principal mode is generally curtain structure, is namely be curtain state by a certain amount of hollow fiber bundle, and its two ends are fixing with the elongated hole entirety opened on a straight tube (collector pipe) respectively, and every root doughnut endoporus communicates with collector pipe.During work, upper and lower for collector pipe level or left and right are vertically placed, make hollow fiber bundle be horizontal or vertical curtain state.Two ends collector pipe is connected with pump intake, make hollow-fibre membrane internal bore pressures lower than its film outer surface pressure, water to be filtered in container, under the effect of film pressure at both sides difference, through the micropore permeation on hollow-fibre membrane surface to film endoporus, is inhaled into collector pipe and is discharged by water pump.In order to improve treatment effect, often relying on and improving film silk and load the membrane area that density increases assembly unit volume, but being uniformly distributed of current in assembly can be affected like this, the large loss of flood peak can be caused.And when volume is not as major consideration, volume is large and assembly that film silk packed density is little, and its osmotic effect can be better, meanwhile, in assembly, film silk density is less, and the loss of flood peak of assembly also can be less, uniform fluid flow in assembly, the utilization of membrane area is more abundant.But reduce film silk density in traditional assembly, not only do not have the improvement flow uniformity of expection, film silk is easy to fracture and produces current short circuit.Uniformity and the gas-liquid transmission efficiency of current can be reduced so on the contrary, easily cause the dirt of film silk stifled.In order to improve flow uniformity, improve osmotic efficiency, problem is blocked up in the dirt simultaneously solving film used, variously arises at the historic moment without shell membrane assembly.
As Chinese patent: CN200420109650.1 filter plant, especially relate to a kind of structural improvement of the hollow fiber porous film assembly be immersed in non-pressure vessel.Immersion ditch type gas distributing hollow fiber film assembly, the hollow-fibre membrane in upper and lower two fixed bodies is fixed on by least one end socket joint, the collecting chamber communicated with the endoporus of hollow-fibre membrane, end cap and gas distribution system are formed, the air inlet stay pipe of described gas distribution system is arranged at the center of fixed body, hollow-fibre membrane two ends are fixed by air inlet stay pipe and fixed body, and form an entirety, the opening of some gas distribution channels is provided with in the side radial direction of one end that air inlet stay pipe is closed.
Chinese patent: CN201110005290.5 is also had to disclose a kind of film silk structure for membrane bioreactor and membrane bioreactor.Wherein, this film silk structure is helix tube, and described helix tube is spiral helicine hollow-fibre membrane.The present invention, by means of helical form film silk structure, utilizes the centrifugal action of current to form Secondary Flow Dean whirlpool, improves the mass-transfer performance of current in film silk, current are created biomembrane and washes away self-cleaning function.
Summary of the invention
The invention provides a kind of film silk not easy fracture, membrane module long service life, produce water quality stabilizing, resistance to cleaning, antifouling stifled effective, the filtration system of structure simple external hollow fiber porous film bundle and technique thereof; Solve the film silk two ends existed in prior art to fix, film silk not easily swings or vibrates, and is unfavorable for playing vibration washing effect, stressed very uneven, easily produces the technical problem of fracture.
The present invention provides a kind of film silk effectively to be supported simultaneously, the beam splitting of film silk can be managed, and the fracture of wire that can detect film silk fast damages phenomenon, the filtration system of the external hollow fiber porous film bundle effectively preventing film silk from intertwining and technique thereof; The film silk solving the water treatment system existed in prior art is easily tied a knot, and inconvenience is arranged in the classification of film silk; Also solve in prior art immerse membranous system cleaning gas-liquid two-phase flow configuration very unreasonable, in film silk root very easily contaminant deposition, thus affect the service life of membrane module, cause and produce water water quality instability, easily dirt is stifled for the film silk of water treatment system, thus affect the technical problem of the effect of water treatment.
Above-mentioned technical problem of the present invention is solved by following technical proposals: a kind of filtration system of external hollow fiber porous film bundle, it is characterized in that: comprise cylindrical shell, upper cover and low head is respectively equipped with at the two ends up and down of cylindrical shell, on, central tube is provided with in the housing that low head and cylindrical shell are formed, the outer wall of central tube offers water distributing pore, one end of central tube is connected with water inlet, the other end of central tube is closed, be provided with water inlet in one end of housing and produce the mouth of a river, air inlet is provided with at the other end of housing, sewage draining exit and distribution device, upper, U-shaped hollow-fibre membrane is provided with between low head, the upper end cast of U-shaped hollow-fibre membrane, U-shaped hollow-fibre membrane upper end open is positioned at upper cover, water distributing pore is positioned at the below of the cast end of U-shaped hollow-fibre membrane, central tube is connected with support body.Water inlet and produce that the mouth of a river is parallel is opened on upper cover, air inlet and sewage draining exit are on low head, and sewage draining exit is positioned at the side of low head.Membrane component of the present invention adopts U-shaped to arrange, and one side is poured into a mould, and end face down, and pollutant can be avoided at end face, i.e. film silk root deposition.Purge flow is parallel to film silk from bottom to top in bottom, cleaning fluid from central tube forms side direction purge flow to film silk, form reciprocation cleaning gas-liquid two-phase flow thus, gas-liquid is washed and is entered together with liquid band gas, and liquid enters from sewage draining exit, gas enters from air inlet, wash away and vibrating membrane silk, until the film silk root area on top, because being the end of gas-liquid flow, thump can not be formed to film silk root, to avoid fracture of wire.Therefore structural design of the present invention both effectively can avoid the pollution problem in the easiest pollution deposit region, also can produce effective cleaning performance.On central tube, connect support body simultaneously, can support U-shaped hollow-fibre membrane, the film silk of sheet can be divided into film bundle a group by a group simultaneously, facilitate the layout of film silk like this.On the other hand, because hollow fiber porous film bundle is that pencil is arranged, the fiber distance in its margin and center region is less, and thus in layout and operation process, the stressed cardinal principle of each root doughnut is therebetween identical, not easy fracture.
Water inlet is intake when original sub-block, when gas-liquid two-phase rinses, serves as gas-liquid floss hole.Sewage draining exit is cross-flow mouth when original sub-block, after product water is collected, is drained by the sewage remained in housing.
Membrane module system of the present invention, described hollow-fibre membrane can adopt current known commercial supermicro filtration membrane material, comprising the polyvinyl alcohol, modified acrylic polymer etc. of cellulose and its derivates, Merlon, polyvinyl chloride, Kynoar, polysulfones, polyacrylonitrile, polyamide, polysulfonamides, SPSF, interlinkage, average membrane pore size≤0.1 μm.
Preferred as one, described inlet duct comprises the air-spreading disk be positioned at below U-shaped hollow-fibre membrane, and air-spreading disk offers qi-emitting hole, and be connected with air inlet in one end of air-spreading disk, air inlet is opened on low head.Air-spreading disk, centered by central tube, is positioned at immediately below film bundle, convenient to film Shu Jinhang airflow scouring, reduces dirty stifled possibility, improves the stability of equipment running.
Preferred as another kind, described inlet duct comprises the air inlet be arranged on low head, and air inlet is connected with admission line, admission line is connected with the support body outside central tube, support body offers pore, admission line is connected with air-spreading disk simultaneously, air-spreading disk offers qi-emitting hole.As more having choosing, described support body comprises the multilayer bracket be parallel to each other, described support comprises center fixing part and brace rod, center fixing part is fixed on central tube, center fixing part is connected with the tubular support muscle of hollow, admission line in center fixing part, described brace rod is furnished with pore by the cross-under of air inlet by-path.The admission line of inlet duct is connected on support body, utilize support body as an extension of inlet duct, utilize the multilayer cleaning of pore air blowing realization to film bundle and the shake of film silk that brace rod is offered at each platform residing for support body, prevent the dirt of film silk stifled, the service life of raising system.Improve the restriction that air-spreading disk is suffered when the below of film bundle.Because when gas-liquid two-phase rinses, the resistance that gas is subject to current is comparatively large, generally can only reach the height of about 1/3 of film silk, and to be therefore subject to the impact of air-flow little for the film silk of housing upper, shakes weak.And the present invention is equipped with pore at each layer of film bundle, so just can carry out purge to the film silk on top, make the film silk of root cleaner, simultaneously, therefore the layout of multilayer air-flow, also being entangled with of minimizing film silk that can be as far as possible few, and the radius of a circle of the distribution of pore is also larger, all well can clear up the outer field film silk of internal layer.Admission line is connected on support body by the flexible pipe of air inlet, and air induction hose can reduce the damage to film silk, can not hinder the shake of film silk, improves the antifouling stifled performance of film silk.
As preferably, described support body comprises the multilayer bracket be parallel to each other, described support comprises center fixing part and brace rod, center fixing part is fixed on central tube, center fixing part is connected with brace rod, brace rod is radially uniform centered by center fixing part, and U-shaped hollow-fibre membrane is divided into some bundles by brace rod.Brace rod is divided into the axial arranged of several layers centrally pipe, multilayer fixed constraint, U-shaped hollow-fibre membrane better can be divided into groups to realize management, also be the hunting range of moderate control U-shaped hollow fiber membrane bundle simultaneously, prevent between the how empty film bundle of doughnut or often restraint the generation of hollow fiber porous film inner part curling up each other.When needing, also can often restrainting the external loose ring of U-shaped hollow fiber membrane bundle, with the excessive swing of appropriateness restriction hollow fiber membrane unit.
As preferably, described air-spreading disk is positioned at immediately below housing; In the form of annular discs or the rib strip shaped of air-spreading disk, discoid air-spreading disk offers qi-emitting hole region and the gas distribution bar region of interlaced arrangement; The air-spreading disk of rib strip shaped comprises the central part with central tube center superposition, and one-body molded on central part have multiple rib be arranged symmetrically with, and rib offers qi-emitting hole.Circular air-spreading disk, cloth tolerance foot, effectively to film Shu Jinhang air-blowing, can help film silk shake blowdown.The air-spreading disk structure of rib strip shaped is simple, and rib radially distributes centered by central part, and gas distribution direction is more diversified, improves gas distribution effect.
As preferably, described central tube is positioned at the center of housing, the length that central tube is provided with the part of water distributing pore is less than or equal to the length of U-shaped hollow-fibre membrane, the casting area of described U-shaped hollow-fibre membrane upper end is positioned at upper cover and cylindrical shell intersection, and the length of described U-shaped hollow-fibre membrane is 90% ~ 95% of barrel lenght.It is intrafascicular that water distributing pore is positioned at film, facilitates current to process through hollow-fibre membrane, puies forward high yield water quality.The pollutant sticking to film silk surface, so that film silk can effectively be shaken, conveniently washes away by the length of U-shaped hollow-fibre membrane.
As preferably, described water producing pipe is provided with peephole.Monitor whether film silk fracture of wire phenomenon, improve the stability that equipment runs, ensure the quality stability of producing water simultaneously.
As preferably, be connected with circulating line, circulating line is connected with circulating pump at described sewage draining exit, the other end of circulating line is connected with water inlet.Dense water circulating filter, improves filter effect and efficiency.
As preferably, be connected with water production pipeline at the described product mouth of a river, water production pipeline is connected with product water pump.Convenient output of producing water.
The filtering technique of a kind of external hollow fiber porous film bundle of corresponding said system, it is characterized in that: the first step, being pressurizeed by the water inlet of central tube by pending former water sends in housing, second step, pending former water is flowed out by the water distributing pore on central tube outer wall and is distributed in the gap of U-shaped hollow-fibre membrane, 3rd step, the water of purification enters film silk inner chamber through the micropore be clouded on hollow membranous wall, 4th step, at product, mouth of a river place is communicated with water producing pipe, under intake pressure effect, the opening of the cleaned water in U-shaped hollow-fibre membrane through film silk upper end is collected in collecting chamber, assembly is left at the multiparity mouth of a river again, 5th step, collect after producing water, close water inlet and produce the mouth of a river, open the sewage draining exit of housing lower end, concentrated water drainage is gone out, 6th step, open air inlet, and by sewage draining exit connecting water pipe, inlet charge, sewage draining exit is intake, the hydraulic pressure of sewage draining exit is normal pressure, hydraulic pressure is utilized to wash away from the bottom to top film silk, composition gas-liquid purge flow, film silk shake and gas-liquid two-phase flow double action under, the pollutant on adhesive film silk surface washes away, discharge via water inlet.
As more preferably, just open air inlet when the first step, carry out gas distribution always.In original sub-block process, gas distribution can ensure that film bundle part pollutes bonding membranous wall when filtration operation, and in cleaning process, realizes gas-liquid two-phase flow and rinse.
The filtering technique of a kind of external hollow fiber porous film bundle of corresponding said system, compressed air is 0.02-0.1MPa at membrane module air inlet place pressure, according to the difference of raw water quality, after normally filtering process runs 60-120 minute, cleaning 20-30 can complete effective cleaning second, recover membrane flux, reach satisfied cleaning performance.According to membranous system of the present invention, former water influent turbidity can reach 500NTU, and delivery turbidity is no more than 0.1NTU.
Cleaning process: cleaning fluid inlet pressure is 0.025-0.1MPa, compressed air is 0.02-0.1Mpa, first at air inlet with described pressure, oil-free compressed air 2-10 second is passed into pulse or continuation mode, stop ventilation, change into cleaning fluid import (i.e. sewage draining exit) with described pressure cleaning fluid, with pulse or continuation mode cleaning 5-10 second, then pass into cleaning fluid and oil-free compressed air carries out gas-liquid two-phase cleaning 10-20 second simultaneously.
After cleaning, 100-150L/m2.h when system permeant flux can return to initial.
The another kind of filtering technique of a kind of external hollow fiber porous film bundle of corresponding said system, the first step, pending former water is sent in housing by central tube, open air inlet, carry out gas distribution, second step, pending former water is flowed out by the water distributing pore on central tube outer wall and is distributed in the gap of U-shaped hollow-fibre membrane, 3rd step, the water of purification enters film silk inner chamber through the micropore be clouded on hollow membranous wall, 4th step, at product, mouth of a river place is communicated with product water pump, the opening of cleaned water in U-shaped hollow-fibre membrane through film silk upper end is collected in collecting chamber, assembly is left at the multiparity mouth of a river again, be back in central tube through circulating pump by sewage draining exit dense water out together with former water, 5th step, by sewage draining exit connecting water pipe, inlet charge, sewage draining exit is intake, the hydraulic pressure of sewage draining exit is normal pressure, hydraulic pressure is utilized to wash away from the bottom to top film silk, composition gas-liquid purge flow, film silk shake and gas-liquid two-phase flow double action under, the pollutant on adhesive film silk surface washes away, discharge via water inlet.
Just open air inlet when the first step, carry out gas distribution always.In original sub-block process, gas distribution can ensure that film bundle part pollutes bonding membranous wall when filtration operation, and in cleaning process, realizes gas-liquid two-phase flow and rinse.
The another kind of filtering technique of a kind of external hollow fiber porous film bundle of corresponding said system, compressed air is 0.02-0.1MPa at membrane module air inlet place pressure, according to the difference of raw water quality, after normally filtering process runs 60-120 minute, cleaning 20-30 can complete effective cleaning second, recover membrane flux, reach satisfied cleaning performance.According to membranous system of the present invention, former water influent turbidity can reach 500NTU, and delivery turbidity is no more than 0.1NTU.
Cleaning process: cleaning fluid inlet pressure is 0.025-0.1MPa, compressed air is 0.02-0.1Mpa, first at air inlet with described pressure, oil-free compressed air 2-10 second is passed into pulse or continuation mode, stop ventilation, change into cleaning fluid import (i.e. sewage draining exit) with described pressure cleaning fluid, with pulse or continuation mode cleaning 5-10 second, then pass into cleaning fluid and oil-free compressed air carries out gas-liquid two-phase cleaning 10-20 second simultaneously.
After cleaning, 100-150L/m2.h when system permeant flux can return to initial.
Therefore, filtration system and the technique thereof of external hollow fiber porous film bundle of the present invention possess following advantage: adopt gas-liquid two-phase flow process to clean, can effectively prevent dirty stifled, improve membrane flux, the service time of effective prolongation system, simultaneously gas spout is in the bottom of film silk or centre, allows while the more effective shake of film silk and can not damage again the fixing root of film silk, Stability Analysis of Structures, effective; The uniform force of film silk, not easy fracture, each group mould bundle independence is good, can change in time when breaking down when not affecting remainder work; And take up an area little, energy consumption is low, easy to operate, and equipment is few, reduced investment, and effluent characteristics is good, and treatment effeciency is higher, and the cycle of operation is longer.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the filtration system of external hollow fiber porous film bundle of the present invention.
Fig. 2 be in Fig. 1 A to schematic diagram.
Fig. 3 be in Fig. 1 B to a kind of schematic diagram.
Fig. 4 be in Fig. 1 B to another kind of schematic diagram.
Fig. 5 is the another kind of schematic diagram of the filtration system of external hollow fiber porous film bundle of the present invention.
Fig. 6 is that the C of Fig. 5 is to schematic diagram.
Fig. 7 is another schematic diagram of the present invention.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical scheme of invention is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of filtration system of external hollow fiber porous film bundle, comprise upper cover 1, low head 18 and cylindrical shell 10, upper and lower end socket lays respectively at the two ends of cylindrical shell 10, a cylindrical shell end circle 15 is respectively had at the two ends up and down of cylindrical shell, upper cover 1, between low head and cylindrical shell end circle, there is an O RunddichtringO 16, by being fixed by anchor ear 6 again after the sealing of O RunddichtringO.Upper and lower end socket and cylindrical shell 10 connect into one with the housing of cavity.A central tube 12 is fixed with at the center of housing, the upper end of central tube 12 is connected with water inlet, water inlet is connected with external equipment by water inlet loose joint 2, water inlet is positioned at upper cover 1 upper end, water inlet is connected on central tube 12 by water distribution tube connector 8, water distribution tube connector 8 is positioned at upper cover 1, is closed by plug 13 in the lower end of central tube 18.Upper cover 1 is also connected with by a transparent pipe 4 simultaneously and produces the mouth of a river, produce the mouth of a river and be connected with outside by producing water loose joint 3, water inlet is parallel with the product mouth of a river, and the outer wall of central tube 18 offers multiple water distributing pore 20.As shown in Figure 2, centered by central tube 12, be provided with U-shaped hollow-fibre membrane 9 in housing, the free end of U-shaped hollow-fibre membrane 9 is cast in and forms pouring layer 7 together, pouring layer 7 is positioned at upper cover 1, and on passing through between water distribution tube connector 8 and pouring layer 7, O RunddichtringO 5 seals.The blind end of U-shaped hollow-fibre membrane 9 is positioned at housing lower end, and the length of U-shaped hollow-fibre membrane 9 is 90% of barrel lenght.The length that central tube 12 is provided with the part of water distributing pore 20 is equal with U-shaped hollow-fibre membrane 9.Three support bodys 11 are fixed with at the axial direction of central tube 12, support body 11 comprises three layers of support, every layer of support comprises center fixing part 21 and brace rod 22, center fixing part 21 is fixed on central tube 12, center fixing part 21 is connected with brace rod 22, brace rod 22 is radially uniform centered by center fixing part 21, and U-shaped hollow-fibre membrane 9 is divided into multiple U-shaped hollow fiber bundle by brace rod 22.As shown in Figure 3, have an air-spreading disk 14 in the below of U-shaped hollow fiber membrane bundle, air-spreading disk 14 is rounded, the card of air-spreading disk 14 is divided into four parts, wherein two parts offer gas distribution bar 23, and two other part offers qi-emitting hole 24, gas distribution bar region and qi-emitting hole region interlaced arrangement.Air-spreading disk 14 connects air inlet, and air inlet is opened on low head 18, and the center line of air inlet overlaps with the center line of water inlet.Air inlet is connected with external feed stream equipment by air inlet loose joint 19, is provided with a sewage draining exit at the side opening of low head 18, the center line of sewage draining exit and the central axis of air inlet, and sewage draining exit is connected with outside pollution discharge pond by blowdown loose joint 17.Also have a peephole (not shown) in the upper of water producing pipe, when cleaning, judged whether film silk fracture of wire by peephole, if there is fracture of wire, when air purge, casting area can produce a large amount of bubble.
A kind of filtering technique of immersion hollow fiber porous film bundle, the first step, being pressurizeed by central tube by pending former water sends in housing, open inlet charge simultaneously, second step, pending former water is flowed out by the water distributing pore on central tube outer wall and is distributed in the gap of U-shaped hollow-fibre membrane, 3rd step, the water of purification enters film silk inner chamber through the micropore be clouded on hollow membranous wall, 4th step, at product, mouth of a river place is communicated with water producing pipe, under intake pressure effect, the opening of the cleaned water in U-shaped hollow-fibre membrane through film silk upper end is collected in collecting chamber, assembly is left at the multiparity mouth of a river again, 5th step, collect after producing water, close water inlet and produce the mouth of a river, open the sewage draining exit of housing lower end, concentrated water drainage is gone out, 6th step, open air inlet, and by sewage draining exit connecting water pipe, inlet charge, sewage draining exit is intake, the hydraulic pressure of sewage draining exit is normal pressure, hydraulic pressure is utilized to wash away from the bottom to top film silk, composition gas-liquid purge flow, film silk shake and gas-liquid two-phase flow double action under, the pollutant on adhesive film silk surface washes away, through being discharged by water inlet after flushing flow process terminates.
Embodiment 2:
As shown in Figure 4, as different from Example 1, air-spreading disk 14 comprises the central part 25 with central tube center superposition, and one-body molded on central part 25 have multiple rib 26 be arranged symmetrically with, and rib 26 offers qi-emitting hole 24.
Embodiment 3:
As illustrated in Figures 5 and 6, as different from Example 1, air inlet is connected with an admission line 27, admission line 27 pulls out two air inlet by-paths 28 and is connected in the center fixing part 21 of every layer of support of support body 11, center fixing part 21 is the cavity of hollow, air inlet by-path 28 is provided with opening through the part of center fixing part, gas is imported in center fixing part 21, the brace rod 22 of support body is the body of hollow, the outer surface of brace rod offers pore 29, gas center fixed part is in brace rod, and then outwards sprayed by the pore 29 on brace rod, because film silk is divided film forming tow by brace rod, and near film silk, better to the cleaning performance of film silk.
Embodiment 4:
As shown in Figure 7, as different from Example 1, a kind of filtration system of external hollow fiber porous film bundle, be connected with circulating line 30 at sewage draining exit place, circulating line is provided with circulating pump 31, and the other end of circulating line is connected to the water inlet of central tube.Sewage draining exit place is connected with sewage vent line 32 simultaneously, for the sewage after discharge cycle.
A kind of filtering technique of external hollow fiber porous film bundle, the first step, pending former water is sent in housing by central tube, open air inlet, carry out gas distribution, second step, pending former water is flowed out by the water distributing pore on central tube outer wall and is distributed in the gap of U-shaped hollow-fibre membrane, 3rd step, the water of purification enters film silk inner chamber through the micropore be clouded on hollow membranous wall, 4th step, at product, mouth of a river place is communicated with product water pump, the opening of cleaned water in U-shaped hollow-fibre membrane through film silk upper end is collected in collecting chamber, assembly is left at the multiparity mouth of a river again, be back in central tube through circulating pump by sewage draining exit dense water out together with former water, 5th step, by sewage draining exit connecting water pipe, inlet charge, sewage draining exit is intake, the hydraulic pressure of sewage draining exit is normal pressure, hydraulic pressure is utilized to wash away from the bottom to top film silk, composition gas-liquid purge flow, film silk shake and gas-liquid two-phase flow double action under, the pollutant on adhesive film silk surface washes away, discharge via water inlet.
Claims (9)
1. the filtration system of an external hollow fiber porous film bundle, it is characterized in that: comprise cylindrical shell, upper cover and low head is respectively equipped with at the two ends up and down of cylindrical shell, on, central tube is provided with in the housing that low head and cylindrical shell are formed, the outer wall of central tube offers water distributing pore, one end of central tube is connected with water inlet, the other end of central tube is closed, be provided with water inlet in one end of housing and produce the mouth of a river, air inlet is provided with at the other end of housing, sewage draining exit and distribution device, upper, U-shaped hollow-fibre membrane is provided with between low head, the upper end cast of U-shaped hollow-fibre membrane, U-shaped hollow-fibre membrane upper end open is positioned at upper cover, water distributing pore is positioned at the below of the cast end of U-shaped hollow-fibre membrane, central tube is connected with support body, described inlet duct comprises the air inlet be arranged on low head, air inlet is connected with admission line, and admission line is connected with the support body outside central tube, and support body offers pore, admission line is connected with air-spreading disk simultaneously, air-spreading disk offers qi-emitting hole, described support body comprises the multilayer bracket be parallel to each other, described support comprises center fixing part and brace rod, center fixing part is fixed on central tube, center fixing part is connected with the tubular support muscle of hollow, admission line in center fixing part, described brace rod is furnished with pore by the cross-under of air inlet by-path, be water distributing pore due to what central tube was offered, therefore the cleaning fluid of central tube forms side direction liquid rinse stream to film silk, and the fixed part outside central tube is connected with admission line, and the stomatal limiting value multilayer air-flow on support body is arranged, forms gas washout to film silk.
2. the filtration system of external hollow fiber porous film bundle according to claim 1, it is characterized in that: described inlet duct comprises the air-spreading disk be positioned at below U-shaped hollow-fibre membrane, air-spreading disk offers qi-emitting hole, be connected with air inlet in one end of air-spreading disk, air inlet is opened on low head.
3. the filtration system of external hollow fiber porous film bundle according to claim 1 and 2, it is characterized in that: described support body comprises the multilayer bracket be parallel to each other, described support comprises center fixing part and brace rod, center fixing part is fixed on central tube, center fixing part is connected with brace rod, brace rod is radially uniform centered by center fixing part, and U-shaped hollow-fibre membrane is divided into some bundles by brace rod.
4. the filtration system of external hollow fiber porous film bundle according to claim 1 and 2, is characterized in that: described air-spreading disk is positioned at immediately below housing; In the form of annular discs or the rib strip shaped of air-spreading disk, discoid air-spreading disk offers qi-emitting hole region and the gas distribution bar region of interlaced arrangement; The air-spreading disk of rib strip shaped comprises the central part with central tube center superposition, and one-body molded on central part have multiple rib be arranged symmetrically with, and rib offers qi-emitting hole.
5. the filtration system of external hollow fiber porous film bundle according to claim 1 and 2, it is characterized in that: described central tube is positioned at the center of housing, the length that central tube is provided with the part of water distributing pore is less than or equal to the length of U-shaped hollow-fibre membrane, the casting area of described U-shaped hollow-fibre membrane upper end is positioned at upper cover and cylindrical shell intersection, and the length of described U-shaped hollow-fibre membrane is 90% ~ 95% of barrel lenght.
6. the filtration system of external hollow fiber porous film bundle according to claim 1 and 2, it is characterized in that: be connected with circulating line at described sewage draining exit, circulating line is connected with circulating pump, the other end of circulating line is connected with water inlet.
7. the filtering technique of an external hollow fiber porous film bundle, it is characterized in that: the first step, being pressurizeed by the water inlet of central tube by pending former water sends in housing, second step, pending former water is flowed out by the water distributing pore on central tube outer wall and is distributed in the gap of U-shaped hollow-fibre membrane, 3rd step, the water of purification enters film silk inner chamber through the micropore be clouded on hollow membranous wall, 4th step, at product, mouth of a river place is communicated with water producing pipe, under intake pressure effect, the opening of the cleaned water in U-shaped hollow-fibre membrane through film silk upper end is collected in collecting chamber, assembly is left at the multiparity mouth of a river again, 5th step, collect after producing water, close water inlet and produce the mouth of a river, open the sewage draining exit of housing lower end, concentrated water drainage is gone out, 6th step, open air inlet, and by sewage draining exit connecting water pipe, inlet charge, sewage draining exit is intake, the hydraulic pressure of sewage draining exit is normal pressure, hydraulic pressure is utilized to wash away from the bottom to top film silk, composition gas-liquid purge flow, film silk shake and gas-liquid two-phase flow double action under, the pollutant on adhesive film silk surface washes away, discharge via water inlet.
8. the filtering technique of external hollow fiber porous film bundle according to claim 7, is characterized in that: just open air inlet when the first step, carries out gas distribution always.
9. the filtering technique of an external hollow fiber porous film bundle, it is characterized in that: the first step, pending former water is sent in housing by central tube, open air inlet, carry out gas distribution, second step, pending former water is flowed out by the water distributing pore on central tube outer wall and is distributed in the gap of U-shaped hollow-fibre membrane, 3rd step, the water of purification enters film silk inner chamber through the micropore be clouded on hollow membranous wall, 4th step, at product, mouth of a river place is communicated with product water pump, the opening of cleaned water in U-shaped hollow-fibre membrane through film silk upper end is collected in collecting chamber, assembly is left at the multiparity mouth of a river again, be back in central tube through circulating pump by sewage draining exit dense water out together with former water, 5th step, by sewage draining exit connecting water pipe, inlet charge, sewage draining exit is intake, the hydraulic pressure of sewage draining exit is normal pressure, hydraulic pressure is utilized to wash away from the bottom to top film silk, composition gas-liquid purge flow, film silk shake and gas-liquid two-phase flow double action under, the pollutant on adhesive film silk surface washes away, discharge via water inlet.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757853A (en) * | 2010-03-20 | 2010-06-30 | 杭州天创净水设备有限公司 | External pressure-type hollow fiber membrane module with antipollution structure and cleaning system |
| CN102160966A (en) * | 2011-03-03 | 2011-08-24 | 南京工业大学 | External pressure type hollow fiber membrane component and preparation method thereof |
| CN202538647U (en) * | 2012-04-28 | 2012-11-21 | 湖州斯科能新材料有限公司 | External filter system for hollow fiber porous membrane bundle |
-
2012
- 2012-04-28 CN CN201210128304.7A patent/CN102658031B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757853A (en) * | 2010-03-20 | 2010-06-30 | 杭州天创净水设备有限公司 | External pressure-type hollow fiber membrane module with antipollution structure and cleaning system |
| CN102160966A (en) * | 2011-03-03 | 2011-08-24 | 南京工业大学 | External pressure type hollow fiber membrane component and preparation method thereof |
| CN202538647U (en) * | 2012-04-28 | 2012-11-21 | 湖州斯科能新材料有限公司 | External filter system for hollow fiber porous membrane bundle |
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Application publication date: 20120912 Assignee: Zhejiang Think Energy Technology Co., Ltd. Assignor: Huzhou Sikeneng New Materials Co.,Ltd. Contract record no.: 2015330000066 Denomination of invention: External filtering system for hollow fiber porous membrane bundle and technology thereof Granted publication date: 20141224 License type: Exclusive License Record date: 20150417 |
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