CN101254410A - Hollow fiber film component - Google Patents
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- CN101254410A CN101254410A CNA2007101796102A CN200710179610A CN101254410A CN 101254410 A CN101254410 A CN 101254410A CN A2007101796102 A CNA2007101796102 A CN A2007101796102A CN 200710179610 A CN200710179610 A CN 200710179610A CN 101254410 A CN101254410 A CN 101254410A
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Abstract
The invention discloses a hollow fibrous membrane module, which comprises a hollow fibrous membrane bundle composed of a plurality of hollow fibrous membrane threads, two end heads arranged at the two ends of the hollow fibrous membrane bundle, an air inlet pipe and a water outlet pipe; an air distributor with air distribution holes which is arranged on the end surface of at least one end head communicates with the air inlet, and the orifices of the air distribution holes face toward the roots of the hollow fibrous membrane threads. The invention also discloses a membrane bioreactor and a water treatment device which utilize the hollow fibrous membrane module. The hollow fibrous membrane module disclosed by the invention is structurally characterized in that the anti-fouling property of the hollow fibrous membrane module is improved, especially the anti-fouling property of the hollow fiber roots, so that the effective filtration area of the hollow fibrous membrane threads is ensured, the service life of the hollow fibrous membrane module is prolonged, and the processing, the assembly, the installation and the maintenance of the hollow fibrous membrane module are all very convenient.
Description
Technical field
The present invention relates to a kind of water separating membrane treatment facility, especially relate to a kind of membrane bioreactor that is applied to the hollow fiber film assembly of water treatment and utilizes hollow fiber film assembly, belong to water-treatment technology field.
Background technology
(Membrane Bioreactor, MBR) technology is that a kind of high-efficiency sewage with membrane separation technique and the combination of traditional biological treatment technology is handled and reuse technology to membrane bioreactor.In the MBR system, each pollutant in the sewage is mainly removed by the biological chemistry action of microorganism, but different with the traditional biological treatment process is, membrane module has substituted second pond thoroughly separates muddy water with its efficient centrifugation, this makes that sludge retention time and hydraulic detention time can be separate, the accumulation of special efficacy bacterium in the increase of activated sludge concentration and the activated sludge has improved biochemical reaction rate in the biochemical reaction tank.Microorganism no longer passes through gravitational settling with separating of water, but under the driving of pressure, makes hydrone and other small-molecule substances of part see through film, and microorganism and macromolecular substances then tunicle are trapped in the reaction tank, thereby make system obtain good effluent quality.MBR technology has solved outstanding problems such as the ubiquitous effluent quality instability of traditional waste water treatment process, floor space are big, technology controlling and process complexity substantially, it is the water treatment technology that has development potentiality, especially aspect reuse of wastewater, MBR technology can be processed into sanitary sewage, municipal sewage or close with it industrial wastewater the high quality reuse water of purposes such as can be used as city miscellaneous water, industrial circulating cooling water with settling at one go, receive academic widely the concern at present in worldwide just day by day, large-scale engineering is used and is also increased gradually.
According to the position that is provided with of membrane module, membrane bioreactor can be divided into external (or claiming split type, separated type) membrane bioreactor and built-in (or claiming immersion, integral type, immersion) membrane bioreactor two big classes.
The general multiselect of external membrane bioreactor pillar hollow fiber film assembly or tubular membrane component, be that membrane module and bioreactor branch are arranged, mixed liquor in the bioreactor is delivered to the filter end of membrane module after the circulating pump supercharging, liquid in the mixed liquor sees through film under pressure, become the system handles water outlet, solid content, macromolecular substances etc. then tunicle are held back, and are back in the bioreactor with concentrate.The characteristics of external membrane bioreactor are stable and reliable operations, be easy to film cleaning, change and set up, and membrane flux is generally bigger, but under the general condition,, prolong the cleaning frequency of film for reducing the deposition of pollutant on the film surface, need provide higher face cross-flow flow velocity with circulating pump, cause the water circulation amount and the required lift of circulating pump to increase, power cost increases, and the ton water consumption is up to 2～10kWh/m
3, and the shearing force that the rotation of the high speed of pump produces can make the certain micro-organisms thalline produce deactivation phenomenom.
Built-in membrane bioreactor is selected curtain formula or bundle formula hollow fiber film assembly or plate and frame module mostly for use, be that membrane module is immersed in below the liquid level of bioreactor, after former water enters membrane bioreactor, activated sludge in the mixed liquid of most of pollutant wherein decomposes or transforms, again under the suction function that suction pump provides or under the effect in water-head by the membrane filtration water outlet, aerating system is arranged on the membrane module below, necessary oxygen is provided on the one hand the microorganism decomposing organic matter, utilize gas to put forward principle on the other hand, make the air water two-phase flow carry out sluicing, suppress the deposition of face sludge blanket with this to film outer surface.Built-in membrane bioreactor has saved the mixed liquor circulatory system than external membrane bioreactor, and structure is more compact, and floor space is little, and by the suction water outlet, the ton water consumption is relatively low, reduces to 1～2.4kWh/m
3, but the installation of membrane module, maintenance, cleaning are very inconvenient, and it is big to clean labour intensity, and cost is higher, and membrane flux is also less relatively.
In sum, adaptability that membrane biological reactor process is good and treatment effect are confirmed by numerous academic research and engineering practice, no matter but be external or built-in membrane bioreactor, compare with other comparatively ripe at present sewage treatment process, cause the capital expenditure height owing to the membrane module cost is high; Owing to high-lift circulating pump or high-intensity aeration cause the operation energy consumption height; Cause the maintenance management complexity owing to the membrane module cleaning operation is complicated; This three big outstanding problem has limited membrane bioreactor to a great extent and has really realized industrialization.How under the prerequisite that effectively controlling diaphragm pollutes, improve membrane flux on the one hand as much as possible so as to reducing the cost of membrane module, reduce the energy consumption of circulating pump or aeration on the other hand as far as possible, develop easy, easy row, the measure of film cleaning reliably simultaneously, it is the key point that comprehensively solves aforementioned three big problems, and a large amount of research and practice confirm that the exploitation of new membrane assembly is again the key of key.So-called new membrane assembly needs the innovation on the membrane material on the one hand, then needs the innovation on the membrane module structure on the other hand.
So-called membrane module be membrane component with certain area with the membrane separator spare that certain form is assembled into, be the minimum unit that film is installed in the middle of engineering is used.That the citation form of membrane component has is flat, tubular type, capillary type and doughnut formula, then mainly containing of being suitable in membrane bioreactor is flat, tubular type and doughnut formula, corresponding membrane module form is plate and frame, pillar, curtain formula or bundle formula, plate and frame module adopts flat element usually, column-type film components adopts tubular type or doughnut formula element usually, and curtain formula or bundle formula membrane module adopt doughnut formula element usually.Because engineering is actual will use the larger area film, the quantity of required membrane module is very big, therefore often need one or several membrane modules are assembled into membrane module unit with certain form, comprising membrane module, collector pipe, fixed support etc., pattern according to membrane module, forms such as plate and frame, pillar, curtain formula or bundle formula are also arranged, and the comparable situation of relevant various membrane module unit sees Table 1.
The characteristics of the plate and frame module unit in table 1 secondary series are referring to Chinese patent and patent application 02800327.6,200480036181.8,200510004970.X, 200510004971.4.
The characteristics of pillar one membrane module unit in table 1 the 3rd row are referring to Chinese patent and patent application 03284178.7.
The characteristics of pillar two membrane module unit in table 1 the 4th row are referring to Chinese patent and patent application 99800749.8,01229169.2,01229790.9,03121949.7,200310100565.9,200420056864.7,200420056865.1,200480028264.2,200510015346.X and 200520027729.4,200610129352.2.
The characteristics of the curtain type film assembly unit in table 1 the 5th row are referring to Chinese patent and patent application 00102210.5,01820629.8,03803307.0,200410098416.8,200420029295.7,200510013293.8,200510015570.9,200510116589.2,200520123501.5,200610104225.7.
The characteristics of the bundle formula membrane module unit in table 1 the 6th row are referring to Chinese patent and patent application 02158708.6,02158711.6,03822704.5,200420029337.7,200420109650.1,200510049324.5,200580025651.5,200610065807.9,200620039621.1,200710056641.9.
The various membrane module unit comparison sheets of table 1
As can be seen from Table 1, from the angle of membrane component, hollow-fibre membrane loading density maximum, cost is minimum, is preferred membrane component form; Angle from membrane module and membrane module unit, although the column-type film components modular construction than the plate and frame slightly more complicated some, but cellular construction is the simplest, being very suitable for many group patterns arranges, maintenance is installed easily, require also lower to preliminary treatment, flow turbulence is good, can make full use of hydraulic shear that face cross-flow flow velocity brings suppresses the reversible film that sludgd deposition causes and pollutes, since the shell that can seal is arranged and be provided with separately with bioreactor, be convenient to membrane module is carried out online Chemical cleaning, to remove the film pollution of irreversible part comparatively up hill and dale, dosing also can minimize, and is preferred membrane module form therefore.In addition, that works carries out online Chemical cleaning easily although bundle formula membrane module is unlike column-type film components, and it has avoided often problem such as winding mutually of curtain type film assembly film silk, and the structure of the membrane module unit of composition is also comparatively simple.Therefore, under the situation that important breakthrough is not arranged aspect the membrane material, adopt the version of doughnut pillar or bundle formula membrane module to produce important improvement to the key issue that the solution preamble has been addressed.
Table 2 has been listed at present both at home and abroad about restrainting the partial monopoly of formula hollow fiber film assembly structural design aspect.
The relevant partial monopoly of table 2 bundle formula hollow fiber film assembly structural design
Still there are following problem in these patents and patent application: hollow fiber membrane bundle root deposition phenomenon is serious, and in case form deposition and be not easy very much again to remove, the effective area of membrane module filtration and the uniformity of filtration have been reduced like this, the service life of whole hollow fiber membrane bundle has finally been shortened in the continuation development that film silk root film pollutes and spreading and the inhomogeneities that can further aggravate to filter and the forfeiture of effective filtration area.Chinese patent application 200510049324.5 disclosed solutions are that hollow-fibre membrane is divided into some bundles, be uniformly distributed in the center aeration tube around, the air-flow that utilizes the aeration head of membrane module bottom to provide carries out sluicing to fiber-film bundle, though can reduce the pollution at hollow-fibre membrane middle part to a certain extent, hollow fiber membrane bundle root deposition phenomenon is not resolved.On market, have a kind of at present and the similar membrane module product of aforementioned patent applications, it imbeds one section short tube in advance in each termination, fiber-film bundle lower end, gas carries out aeration by short tube, to strengthen scouring effect to the fiber-film bundle root, but this short tube mouth of pipe up, and the upper limb of mouth exceeds hollow-fibre membrane casting end face certain altitude, the aeration gas flow of Chan Shenging can not purge comparatively completely and washes away film silk root like this, and fail to prevent that hollow fiber membrane bundle upper end root from producing deposition, so the problem of root deposition still is not well solved.
Summary of the invention
An object of the present invention is to provide the hollow fiber film assembly that effectively to avoid the deposition of hollow-fibre membrane root in a kind of water treatment procedure.
Another object of the present invention provides a kind of membrane bioreactor that utilizes the hollow fiber film assembly of this invention.
A further object of the invention provides a kind of water treatment facilities that utilize the hollow fiber film assembly of this invention or utilize membrane bioreactor of the present invention.
In order to realize the foregoing invention purpose, the present invention adopts following technical scheme:
The invention provides a kind of hollow fiber film assembly, comprise the hollow fiber membrane bundle of forming by many hollow-fibre membrane silks, termination, air inlet pipe and the water producing pipe at hollow fiber membrane bundle two ends, it is characterized in that: the end face of at least one termination is provided with the distribution device of band qi-emitting hole, this distribution device is communicated with air inlet pipe, and the aperture of described qi-emitting hole is towards hollow-fibre membrane silk root.
Distribution device makes that not only aeration is more even, and also more thorough for washing away of fibre bundle root.The loading density of hollow-fibre membrane silk in membrane module is very big, usually can be up to 5000～40000m
2/ m
3, under high like this loading density, hollow-fibre membrane silk root is easy to produce the deposition phenomenon, and in case forms deposition and be not easy very much again to remove.Distribution device provided by the invention is arranged at the root of hollow-fibre membrane silk, and the aperture of qi-emitting hole towards root rather than directly up, therefore the air-flow that comes out from qi-emitting hole is not direct rising, but at first wash away the root of hollow-fibre membrane silk, significantly improved the flow turbulence of hollow-fibre membrane silk root, make activated sludge be not easy deposition and stop, thereby avoid the alluvial of mud at hollow-fibre membrane silk root.
The aperture of described qi-emitting hole be towards can there being multiple choices, and the aperture of preferred qi-emitting hole is towards horizontal direction or tiltedly descend direction.For the root of hollow fiber bundle, vertically up the time, airflow direction is parallel to hollow-fibre membrane silk surface in the aperture of qi-emitting hole, and the scouring force of generation is little; The aperture of qi-emitting hole be oriented horizontal direction the time, from the airflow direction that wherein comes out perpendicular to hollow-fibre membrane silk surface, the scouring force that produced when last with respect to the aperture increases greatly, and also has the part air-flow to move towards the below, helps washing away the fiber root; The aperture of qi-emitting hole is when tiltedly descending direction, the airflow direction that comes out is sideling towards the end face near nearest termination, air-flow can preferentially move downward, also increased washing away to the fiber root, and air-flow finishes after the washing away of fiber root, and continues to rise, and the air water two-phase flow of formation continues as other positions of hollow-fibre membrane silk surperficial cross-flow is provided, clearly, such scouring effect is better than the vertically scouring effect up time of aperture.
For above-mentioned hollow fiber film assembly, described distribution device can have the spoke of at least three hollows, and this width of cloth bar side has described qi-emitting hole.The layout of many width of cloth bars makes aeration more even, and therefore also comparatively comprehensive for washing away of fibre bundle root, the air water two-phase flow of Shang Shenging is also more even in addition.Described spoke can be that the center of circle is star and evenly distributes with the center, termination.Preferred use 3～8 width of cloth bars radially or helically bent, end face is equally divided into the part that 3～8 areas equate, corresponding, hollow fiber membrane bundle also is equally divided into 3～8 tuftlets uniformly, and each tuftlet all casts in the gap between the width of cloth bar.
Open on the sidewall of spoke in the aperture of qi-emitting hole, and the airflow direction that comes out from qi-emitting hole is generally towards level.When the sidewall of spoke has certain thickness, can utilize the thickness of spoke that the aperture of qi-emitting hole is designed in the process of processing, make that the air-flow that comes out from qi-emitting hole is sideling towards following, perhaps sideling towards last.Certainly, the present invention preferably sideling towards under mode.Also can select the control of alternate manner realization to airflow direction.
The shape of described qi-emitting hole, quantity, size and distribution form have various ways.Shape can adopt circle or strip, is linear distribution along spoke by the edge of mind-set termination end face in the end face of termination, and when being bar hole, the long limit in each hole should be roughly parallel to end face.The aperture of qi-emitting hole can equate apart from the distance of the end face of hollow-fibre membrane silk, also can be unequal, and this distance range is 1mm～20mm, preferred 2mm～10mm.The diameter of described qi-emitting hole or the length of minor face are 1mm～10mm, preferred 1mm～5mm.
In above-mentioned arbitrary hollow fiber film assembly, the end face of at least one termination is the end face of projection.End face is if the plane, and mud has more serious alluvial phenomenon.The characteristics of bulge-structure are low around high in the middle of being, can form like this one by the centre to around an inclination, this structure helps helping reducing the alluvial of mud around air-flow blows to pollutants such as mud.As preferably, the end face of the termination of described projection is a truncated cone-shaped.The structure of truncated cone-shaped is more prone to processing, also is beneficial to miscellaneous parts such as tube connector is set in the centre.
Above-mentioned arbitrary hollow fiber film assembly can be provided with the distribution device of being with qi-emitting hole respectively on the end face of two terminations, and these two distribution devices are communicated with by a hollow tube.The effect of hollow tube comprises: the first, and air communication is crossed hollow tube and is supplied with distribution device with air-flow; The second, up and down two terminations couple together, and the length of flexible pipe is slightly less than the length of hollow-fibre membrane silk, and the pulling force when playing the gravity of bearing lower end and swing is broken to avoid hollow-fibre membrane silk load.The 3rd, help the cleaning of equipment.Because it is to flexibly connect, can from the water treating pond that works online, lift out easily and clean, single can the operation, and need not use hanging device, simple.
Above-mentioned arbitrary hollow fiber film assembly can be provided with a sleeve outside hollow fiber membrane bundle.The effect of sleeve is the effect that the air water two-phase flow that aeration forms is had a constraint, make it be unlikely to diffuse to the sleeve periphery, thereby significantly dwindled gas and put off face, just make under the situation of less aeration rate and can obtain higher aeration intensity in that hollow-fibre membrane is intrafascicular, make the air water two-phase flow have better sluicing effect to film silk outer surface, can suppress the development that film pollutes well, and remarkable save aeration consumption.
Can there be hole on the barrel of described sleeve, also can some hole, but that hole is provided with is unsuitable too many, and hole area also should not be too big, especially on the same horizontal plane or on the same axis at sleeve wall.As preferably, do not establish any hole on the barrel of described sleeve.
The cross section of described sleeve can be circular, also can be rectangle, square or arbitrary shape that other are known.As preferably, the cross section of described sleeve is circular.The area of each cross section can be identical from top to bottom for described sleeve, also can be inequality.As preferably, the described sleeve area of each cross section from top to bottom is identical, and perhaps the cross-sectional area of mid portion is slightly less than the cross-sectional area at two ends up and down, for example can be designed to be similar to the shape of Venturi tube or Venturi nozzle.The length range of described sleeve is 0.1m～4.0m.As preferably, the length range of described sleeve is 1.5m～2.0m.The diameter range of described sleeve is 5mm～400mm, preferred 30mm～100mm.
Among the present invention, upper end refers to membrane module in the water treatment course of work, and near the termination of the water surface, lower end refers near water-bed termination.Upper end and lower end corresponding respectively the upper port and the lower port of sleeve.
Described upper end and lower end can be in the inside of sleeve, also can be in the outside of sleeve.Preferably, described upper end and lower end are all fully in sleeve inner, and the distance of the distance of upper end and upper cartridge port end face and lower end and lower cartridge port bottom surface is 1/20～1/3 of a length sleeve.
Described sleeve can be connected with fixture separately, also can be only one of them links together with upper end or lower end, to guarantee that hollow fiber membrane bundle is housed in sleeve inner all the time fully in the membrane module course of work, sleeve can be along with upper end or rocking of lower end and rocks, and is not separated with it all the time.The preferred bolt that uses connects together sleeve and upper end.
Described sleeve, air inlet pipe and water producing pipe can be rigidity, also can be flexible.Preferred flexible, its material can be silicon rubber, fluorubber, soft PVC, polyurethane etc.
Between two terminations, tube connector can be set, connect two terminations.
Described tube connector connects into an integral body with upper end and lower end, and its length can be identical with hollow fiber membrane bundle, also can slightly be shorter than the film bundle.As preferably, the length of described tube connector is slightly less than the length of hollow fiber membrane bundle.Can prevent like this that the termination amplitude of fluctuation is excessive and make the film filament length time stressed, film is done up protective effect.
The diameter range of described air inlet pipe, water producing pipe and tube connector is 1mm～50mm.Preferred 5mm～20mm.
Described upper end links to each other with fixture by the mode that soft rope or flexible pipe etc. are flexible coupling.Soft rope can be corrosion resistant rope, steel wire or spring etc.Soft rope makes membrane module be in overhang in liquid to be filtered, can swing be arranged with current.
When upper end is provided with air inlet pipe or water producing pipe and air inlet pipe or water producing pipe and is flexible pipe, also can membrane module be suspended on the fixture by air inlet pipe or water producing pipe.
The two ends of hollow-fibre membrane silk are cast sealed knot respectively within upper end and lower end, and one is provided with air inlet pipe in two terminations, and another is provided with water producing pipe, and perhaps air inlet pipe and water producing pipe all are located at a termination.As preferably, one is provided with air inlet pipe in described upper end and the lower end, and another is provided with water producing pipe.As more preferably, described upper end is provided with water producing pipe, and described lower end is provided with air inlet pipe.The quantity of air inlet pipe and water producing pipe can be selected according to the engineering actual conditions, an air inlet pipe and a water producing pipe both can have been selected, also can select two or more air inlet pipe, perhaps select two or more water producing pipes, perhaps select two or more air inlet pipe and water producing pipe simultaneously.
Described hollow-fibre membrane silk is a kind of doughnut that has micropore, and the material of making the hollow-fibre membrane silk can be selected from materials such as Kynoar, polyethylene, polypropylene, polyether sulfone.At first by using casting resins such as epoxy resin, polyurethane to carry out the end-blocking casting, re-use flexible resins such as silicon rubber, polyurethane carries out second casting to hollow-fibre membrane silk root to the hollow-fibre membrane silk, to reduce the probability of film silk root fracture.As preferably, the material of described hollow-fibre membrane silk is a Kynoar.The average membrane pore size of described hollow-fibre membrane silk is 0.01 μ m～5 μ m.
The length of described hollow fiber membrane bundle can and up and down the distance between two terminations equate, also can be slightly larger than this distance.As preferably, the length of described hollow fiber membrane bundle is greater than the distance between two terminations up and down, but less than the length of sleeve.Described hollow fiber membrane bundle is made up of 10～1000 hollow-fibre membrane silks, and length range is 0.1m～3.0m.Preferably be made up of 50～500 hollow-fibre membrane silks, length range is 1.0m～1.5m.
The shape of described upper end and lower end can be identical, also can be different.As preferably, described upper end is slightly larger than lower end.Can make whole hollow fiber membrane bundle lower end that certain amplitude of fluctuation can be arranged in sleeve like this.
Described upper end and lower end monnolithic case can be shapes such as cylinder, cone.As preferably, the monnolithic case of described upper end and lower end is a basin shape or cup-shaped.
The present invention compared with prior art has following useful effect:
(1) improves antifouling property, the especially antifouling property of hollow fiber membrane bundle root of hollow fiber film assembly, prolonged the service life of hollow fiber film assembly.The qi-emitting hole of the distribution device that the hollow fiber membrane bundle end is provided with is towards tunica fibrosa silk root, therefore the big root film silk of loading density is too intensive, the universal phenomenon of easy deposition because of pursuing well to have avoided existing hollow fiber film assembly, remain the effective area of hollow-fibre membrane silk filtration in the water treatment procedure and the uniformity of filtration, can effectively prevent the fast development of polluting and spread the service life that shortens whole bundle film silk because of film silk root film.In addition, hollow fiber membrane bundle is in overhang in liquid to be filtered, the setting of the various parts that are flexible coupling, be soft tube connector, air inlet pipe, water producing pipe etc., make that the film bundle can be along with the swing together within the specific limits of two terminations, film silk root significantly reduces with the angle of oscillation of casting end face, pulling force between film silk root and the casting end face also reduces greatly, therefore greatly reduce the probability of film silk root fracture, improved the stability of membrane module work, prolonged its service life.
(2) improved the comfort level of hollow fiber film assembly processing, assembling, installation and maintenance.The termination internal structure of membrane module of the present invention casting hollow-fibre membrane silk is simple, and interior do not have a complicated structural member, has reduced the difficulty and the percent defective of potting operation, and membrane module integral body can realize fabricated construction, and product is realized assembling fast easily.Be fixed in fixture in the mode that flexibly connects, every membrane module can mount and dismount separately, and singlely can finish whole operations, must carry out integral hoisting by lifting appliance after forming large-scale membrane module unit unlike existing hollow fiber film assembly, labour intensity is big, single can't the operation.When the tube connector in the middle of two terminations adopts flexible pipe, requirement to membrane module upper space height during the installation and removal membrane module also can reduce greatly, therefore made things convenient for the installation and the maintenance of hollow fiber film assembly to a great extent, made hollow fiber film assembly excellent adaptability all arranged the types of applications occasion.
Description of drawings
Fig. 1 is the profilograph of embodiments of the invention 1 described hollow fiber film assembly.
Fig. 2 is the profile at the A-A place among Fig. 1.
Fig. 3 is the membrane module and the corresponding profile of Fig. 2 of prior art.
Fig. 4 is the schematic diagram of the membrane module unit be made up of several hollow fiber film assemblies of the present invention among the embodiment 1.
Fig. 5 is the schematic diagram of the membrane module unit be made up of several hollow fiber film assemblies of the present invention among the embodiment 2.
Fig. 6 is in the hollow fiber film assembly of the present invention, the schematic diagram that air-flow purges hollow-fibre membrane silk root.It is the profile at B-B place among Fig. 2.The figure middle sleeve does not show.
Fig. 7 is in a kind of hollow fiber film assembly of prior art, and the schematic diagram that air-flow purges the hollow-fibre membrane silk is the profile by lower end surface center vertical line.
The explanation of each mark in the accompanying drawing:
1---sleeve; 2---the hollow-fibre membrane silk; 3---hollow fiber membrane bundle; 4---upper end; 5---lower end; 6---water producing pipe; 7---air inlet pipe; 8---tube connector; 9---the distribution device of band qi-emitting hole; 10---spoke; 11---qi-emitting hole; 12---produce the water collecting chamber; 13---exit branch; 14---the aeration arm; 15---the termination of catchmenting; 16---central tube; 17---the gas distribution termination; 18---delivery port
The specific embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
Embodiment:
As shown in Figure 1 and Figure 2; a kind of hollow fiber film assembly; comprise that internal diameter is the sleeve 1 of 65mm; be arranged on the hollow fiber membrane bundle of forming by 240 hollow-fibre membrane silks 23 in the sleeve 1; the average pore size that is used for the micropore by liquid of hollow-fibre membrane silk 2 is 0.01 μ m; the external diameter of hollow-fibre membrane silk is 1.2mm; material is a Kynoar; two ends come together among upper end 4 and the lower end 5 with the epoxy resin casting; and with polyurethane it is carried out second casting, so that film silk root is protected.The monnolithic case of upper end 4 and lower end 5 is cup-shaped, and diameter of a circle suitable for reading is 45mm.Be the perforate state in the product water collecting chamber 12 of hollow-fibre membrane silk 2 in upper end 4, in lower end 5, be closed pore state, upper end 4 is provided with the water producing pipe 6 that external diameter is Φ 8mm, lower end 5 is provided with the air inlet pipe 7 that external diameter is Φ 8mm, two terminations are that the tube connector 8 of Φ 6mm connects into an integral body by external diameter, and hollow-fibre membrane silk 2 evenly distributes round tube connector 8.Water producing pipe 6, air inlet pipe 7 and tube connector 8 are the hollow plastic flexible pipe.Tube connector 8 passes lower end 5 and is connected with air inlet pipe 7, and 6 of water producing pipes are connected with product water collecting chamber 12 in the upper end 4.
Two terminations are equipped with the distribution device 9 of a band qi-emitting hole on the end face that is cast with the hollow-fibre membrane silk, the distribution device 9 of band qi-emitting hole has the six roots of sensation spoke 10 that radially distributes, the wide 5mm of each spoke, high 4mm, angle between adjacent two spokes is 60 °, spoke 10 extends on the circumference of upper end 4 or lower end 5 from the center of termination end face, inside has cavity, two sidewalls of spoke 10 are all perpendicular to the casting end face, opposite side at the end face of casting dorsad then is a rounding, be provided with the circular qi-emitting hole 11 that four diameters are Φ 2mm on two sidewalls in position placed in the middle, the central axis of qi-emitting hole 11 is perpendicular to the side wall surface of spoke 10, height apart from the casting end face is 2mm, and the central axis spacing of each qi-emitting hole is 4mm, and the cavity of spoke 10 is connected with tube connector 8.
The spoke 10 of the distribution device 9 of band qi-emitting hole stretches out the tip of certain-length outside the circumference of termination, in the tip is solid construction, the spoke tip of upper end 4 is longer than lower end 5, the profile of the distribution device outermost of the band qi-emitting hole of upper end 4 is that diameter is the circumference of Φ 65mm, make sleeve 1 just be enclosed within on the distribution device of this band qi-emitting hole, the two contacted place bolting, the profile of the distribution device outermost of the band qi-emitting hole of lower end 5 is that diameter is the circumference of Φ 55mm, and this makes lower end 5 that certain shaking amplitude can be arranged in sleeve 1.
The length of sleeve 1 is 1.2m, the average length of hollow fiber membrane bundle 3 is 1.2m, the total height of the distribution device 9 of upper end 4 and band qi-emitting hole thereof is 70mm, the total height of the distribution device 9 of lower end 5 and band qi-emitting hole thereof is 50mm, the length of tube connector 8 is 1.0m, upper end 4 is 1.12m together with the total height of tube connector 8 and lower end 5, this makes upper end 4 and lower end 5 all be covered on sleeve 1 inside fully, and upper end 4 tops and lower end 5 bottoms are apart from all the have an appointment distance of 40mm of socket port end face.The length of water producing pipe 6 and air inlet pipe 7 is 150mm.
The exit branch 13 that water producing pipe 6 and is positioned at the membrane module top is connected, the aeration arm 14 that air inlet pipe 7 and is positioned at the membrane module below is connected, exit branch 13 is 1.3m with the vertical range of aeration arm 14, makes whole membrane module that the space of the suspension activity of 120mm up and down can be arranged.
The structure of membrane module is identical with embodiment 1.
As shown in Figure 5, eight hollow fiber film assemblies and the termination 15 of catchmenting, central tube 16 and gas distribution termination 17 are formed a radioactive membrane module unit.Water producing pipe 6 and diameter are that eight uniform quick connectors of 15 lower surfaces, termination of catchmenting of 150mm are connected, diameter is that Φ 40mm, length are that the central tube 16 of 1.5m passes along the axis of the termination 15 of catchmenting, eight membrane modules distribute equably round central tube 16, the below of central tube 16 and diameter are that the gas distribution termination 17 of 150mm is connected, and eight uniform quick connectors of the air inlet pipe 7 of eight membrane modules and 17 upper surfaces, gas distribution termination are connected.Hollow fiber membrane bundle 3 is surrounded by liquid to be filtered during membrane module unit work, the compressed air that source of the gas provides enters from the suitable for reading of central tube 16, and the air inlet pipe 7 that enters eight membrane modules through gas distribution termination 17, after tube connector 8 and up and down the qi-emitting hole 11 on the distribution device 9 of the band qi-emitting hole of termination diffuse out, directly purge film silk root, the delivery port 18 and one of termination 15 of catchmenting can provide the water pump of negative pressure to be connected, water to be clean enters film silk inside through the micropore on hollow-fibre membrane silk 2 walls, and conflux into product water collecting chamber 12, flow into the termination 15 of catchmenting through water producing pipe 6 again, extract out by water pump at last.
More than hollow fiber film assembly provided by the present invention is described in detail.Used specific embodiment in this specification principle of the present invention and embodiment have been set forth, for one of ordinary skill in the art, according to the thought of the present invention part that may in implementation process, can change in specific embodiments and applications.Therefore, the content of this specification record should not be construed as limitation of the present invention.
Claims (10)
1. hollow fiber film assembly, comprise the hollow fiber membrane bundle of forming by many hollow-fibre membrane silks (2) (3), termination (4,5), air inlet pipe (7) and the water producing pipe (6) at hollow fiber membrane bundle two ends, it is characterized in that: the end face of at least one termination is provided with the distribution device (9) of band qi-emitting hole (11), this distribution device is communicated with air inlet pipe, and the aperture of described qi-emitting hole is towards hollow-fibre membrane silk root.
2. hollow fiber film assembly according to claim 1, the aperture of described qi-emitting hole are towards horizontal direction or tiltedly descend direction.
3. hollow fiber film assembly according to claim 1, described distribution device have the spoke (10) of at least three hollows, and this spoke side has described qi-emitting hole.
4. hollow fiber film assembly according to claim 3, described spoke are that the center of circle is star and evenly distributes with the center, termination.
5. hollow fiber film assembly according to claim 1, the end face of at least one termination are the end face of projection.
6. hollow fiber film assembly according to claim 5, the end face of described projection are truncated cone-shaped.
7. according to the described hollow fiber film assembly of claim 1～6, it is characterized in that: be respectively arranged with the distribution device of band qi-emitting hole on the end face of two terminations, the distribution device of these two band qi-emitting holes is communicated with by a hollow tube (8).
8. according to the described hollow fiber film assembly of claim 1～7, it is characterized in that: a sleeve (1) is arranged outside hollow fiber membrane bundle.
9. utilize the membrane bioreactor of the described arbitrary hollow fiber film assembly of claim 1～8.
10. utilize the water treatment facilities of described arbitrary hollow fiber film assembly of claim 1～8 or the described membrane bioreactor of claim 9.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101796102A CN101254410B (en) | 2007-12-14 | 2007-12-14 | Hollow fiber film component |
| EP08862434.1A EP2226115B1 (en) | 2007-12-14 | 2008-12-12 | A hollow fiber membrane module |
| US12/745,657 US9434629B2 (en) | 2007-12-14 | 2008-12-12 | Membrane module and membrane bioreactor, water treatment equipment using the same |
| PCT/CN2008/073485 WO2009076911A1 (en) | 2007-12-14 | 2008-12-12 | A hollow fiber membrane module, a membrane biological reactor and a water-processing equipment use of it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101796102A CN101254410B (en) | 2007-12-14 | 2007-12-14 | Hollow fiber film component |
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| Publication Number | Publication Date |
|---|---|
| CN101254410A true CN101254410A (en) | 2008-09-03 |
| CN101254410B CN101254410B (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101796102A Active CN101254410B (en) | 2007-12-14 | 2007-12-14 | Hollow fiber film component |
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| CN (1) | CN101254410B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009076911A1 (en) * | 2007-12-14 | 2009-06-25 | Beijing Ecojoy Water Technology Co., Ltd | A hollow fiber membrane module, a membrane biological reactor and a water-processing equipment use of it |
| US20110074588A1 (en) * | 2009-09-25 | 2011-03-31 | Tamir Olpak | Heat sensitive sensor for flexible waveguides |
| CN112844052A (en) * | 2020-12-25 | 2021-05-28 | 德蓝水技术股份有限公司 | Hollow fiber curtain type membrane assembly for MBR process |
-
2007
- 2007-12-14 CN CN2007101796102A patent/CN101254410B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009076911A1 (en) * | 2007-12-14 | 2009-06-25 | Beijing Ecojoy Water Technology Co., Ltd | A hollow fiber membrane module, a membrane biological reactor and a water-processing equipment use of it |
| US9434629B2 (en) | 2007-12-14 | 2016-09-06 | Beijing Ecojoy Water Technology Co., Ltd. | Membrane module and membrane bioreactor, water treatment equipment using the same |
| US20110074588A1 (en) * | 2009-09-25 | 2011-03-31 | Tamir Olpak | Heat sensitive sensor for flexible waveguides |
| US8144022B2 (en) * | 2009-09-25 | 2012-03-27 | Eastman Kodak Company | Heat sensitive sensor for flexible waveguides |
| CN112844052A (en) * | 2020-12-25 | 2021-05-28 | 德蓝水技术股份有限公司 | Hollow fiber curtain type membrane assembly for MBR process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101254410B (en) | 2010-12-15 |
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Free format text: CORRECT: ADDRESS; FROM: 100085 ROOM 209, KEMAO BUILDING, SHANGDI INFORMATION INDUSTRY BASE, HAIDIANDISTRICT, BEIJING TO: 100192 NO.1001, UNIT 4, BUILDING 4, INNER OF NO.8, HUAHUGOU, WALI, CHAOYANG DISTRICT, BEIJING |
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Effective date of registration: 20110118 Address after: 100192 Beijing city Chaoyang District Wali Hua Hu Gou No. eight, No. 4 Building 4 No. 1001 Patentee after: Sun Youfeng Address before: 100085, Beijing Haidian District information industry base, science and technology building, room 209 Patentee before: Beijing Ecojoy Water Technology Co., Ltd. |