CN201324602Y - Submerged hollow-fibre membrane module - Google Patents
Submerged hollow-fibre membrane module Download PDFInfo
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- CN201324602Y CN201324602Y CNU2008201241908U CN200820124190U CN201324602Y CN 201324602 Y CN201324602 Y CN 201324602Y CN U2008201241908 U CNU2008201241908 U CN U2008201241908U CN 200820124190 U CN200820124190 U CN 200820124190U CN 201324602 Y CN201324602 Y CN 201324602Y
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- membrane module
- hollow fiber
- fibre membrane
- film assembly
- fiber film
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Abstract
The utility model relates to a submerged hollow-fibre membrane module, in particular to a submerged hollow-fibre membrane module and an elementary membrane module, both of which can be used for a membrane bioreactor, and more particularly to a hybrid structure formed by a gas distributor and the modules. The hybrid structure mainly comprises a frame, a single bunch membrane module, a collector pipe and an aeration tube. The single bunch membrane module comprises a water outlet at the upper end head, an air inlet with a butterfly-shaped aerator at the lower end head, and externally pressurized type hollow-fibre membrane threads filled between the water outlet and the water inlet. A plurality of single bunch membrane modules are connected in parallel by the collector pipe and the aeration tube, so as to form the frame of the submerged hollow-fibre membrane module; and the frame forms a submerged hollow-fibre membrane module unit through a stainless steel bracket. The utility model not only improves the anti-fouling performance of the root part of the hollow-fibre membrane bundle, but also prolongs the service life of the submerged hollow-fibre membrane module. Furthermore, the structure is simple, and the assembly, the installation and the maintenance are easy.
Description
Technical field
The utility model relates to a kind of immersion hollow fiber film assembly, relates in particular to a kind of immersion hollow fiber film assembly and unit membrane assembly that can be used for membrane bioreactor, particularly the integral structure of gas distributor and assembly.
Background technology
(Membrane Bioreactor, MBR) technology is a kind of novel sewage disposal technology with membrane separation technique and biologic treating technique combination to membrane bioreactor.Membrane bioreactor is to utilize micro-filtration membrane to replace the second pond mechanical filter, improves mud-water separation efficient.Efficient crown_interception by film is trapped in most suspensions in the bioreactor, improves concentration of activated sludge in the membrane bioreactor, prolongs sludge retention time, greatly improves biochemical treatment efficient; Reduce F/M ratio simultaneously, help to reduce the excess sludge production zero-emission of mud (even reach), reduce the Treatment of Sludge expense.
Membrane bioreactor (MBR) generally adopts separated type and two kinds of forms of immersion.In the separate film biological reactor (RMBR), the mud mixture in the biochemical post-reactor is sent into membrane module through force (forcing) pump, and seeing through liquid directly can reuse, and concentrate Returning reactor, further biochemical degradation again.In the submerged membrane bioreactor (SMBR), membrane module directly is soaked in the reactor, there is aerator the reactor below, the air that air compressor machine is sent here forms the microbubble that floats, in aeration, make film surface produce shear stress again, thereby make film surface scrubbing, see through liquid and go out membrane module in that the negative pressure of suction pump is dirty.Two kinds of methods are compared, because the little operating cost of submerged membrane bioreactor floor space is lower, thereby are paid close attention to widely.Wherein 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.The citation form of membrane module has plate and frame, pillar, curtain formula and bundle formula.Plate and frame module adopts flat element usually, and column-type film components adopts tubular type or doughnut formula element usually, and curtain formula and bundle formula membrane module adopt doughnut formula element usually.And design the performance that outstanding membrane module can greatly be brought into play the film silk, thereby improve the treatment effeciency of membrane bioreactor.
Membrane bioreactor (MBR) is when demonstrating the incomparable advantage of many traditional handicrafts, also expose some improved places of still needing, its disadvantage is the reduction that can cause membrane flux after operation a period of time because the film silk is polluted, and is a major challenge that is faced when using membrane process thereby how the decelerating membrane pollution process is kept membrane flux.Because the membrane module long period of soaking is in biological reaction pool, the contaminated phenomenon of hollow-fibre membrane silk root is serious, and sludge settling is in case formation just is difficult to remove, and this has just reduced the effective area of membrane module filtration and the uniformity of filtration.Sludge settling hardens as time passes, and mud upwards deposits along the continuation of root film silk, further aggravates the inhomogeneities of filtration and the forfeiture of effective filtration area, has finally shortened the service life of whole hollow fiber film assembly.A kind of membrane module product is arranged on market at present, 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, the aeration gas flow of Chan Shenging can not purge completely and washes away film silk root like this, fail to prevent that hollow fiber membrane bundle upper end root from producing deposition, so the problem of root deposition is not well solved still.Aeration short tube opening is bigger simultaneously, and dissolved oxygen rate is lower, thereby has increased the cost of membrane bioreactor (MBR) operation.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of immersion hollow fiber film assembly that is made of bundle formula membrane module is provided, and can effectively avoid the deposition of hollow-fibre membrane root in water treatment procedure, thereby improve the utilization rate of oxygen.
The purpose of this utility model is realized by following technical scheme:
A kind of immersion hollow fiber film assembly mainly comprises framework, single bundle formula membrane module, collector pipe, aeration tube.Single bundle formula membrane module comprises delivery port, the air inlet that lower end has aerator of upper end and is filled in therebetween external pressure hollow-fibre membrane silk.A plurality of single bundle formula membrane module upper port are carried out parallel connection by collector pipe, constitute the top frame of immersion hollow fiber film assembly unit, and lower port are carried out parallel connection by aeration tube, constitute the under(-)chassis of immersion hollow fiber film assembly unit; Top frame and under(-)chassis are connected to form complete immersion hollow fiber film assembly unit by stainless steel stent.
The lower end of described immersion hollow fiber film assembly has aerator, and the profile of this aerator is a butterfly, places the centre of hollow fiber membrane bundle, be communicated with air inlet pipe, its aeration opening is towards hollow-fibre membrane silk root, and its aeration face is lower than film silk casting face, and wherein the aeration face is covering of the fan and arranges.
The material of described butterfly aerator is selected high molecular polymer for use.
The utility model compared with prior art has following useful effect:
(1) improves antifouling property, the especially antifouling property of hollow fiber membrane bundle root of immersion hollow fiber film assembly, prolonged the service life of immersion hollow fiber film assembly.The solarization air cap of the aerator that the hollow fiber membrane bundle end is provided with is towards hollow-fibre membrane 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 to shorten the service life of whole bundle film silk because of spreading of film silk root film pollution.
(2) simple in structure, be easy to assembling, install and maintenance.The termination internal structure of membrane module described in the utility model 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.
Description of drawings
Fig. 1 is the profile at the profilograph of bottom of the present utility model and the A-A place among the figure;
Fig. 2 is the schematic diagram of single hollow fiber film assembly of the present utility model;
Fig. 3 is the schematic diagram that air-flow purges hollow-fibre membrane silk root in the utility model;
Fig. 4 is that present prior art membrane module bottom constitutes schematic diagram;
Fig. 5 is the schematic diagram of the membrane module unit be made up of several the utility model among the embodiment 1;
Fig. 6 is the schematic diagram of the membrane module unit be made up of several the utility model among the embodiment 2.
Parts tabulation in the accompanying drawing
| Component serial number | The |
| 1 | Hollow |
| 2 | The |
| 3 | The hollow- |
| 4 | |
| 5 | |
| 6 | The membrane module lower end |
| 7 | Delivery port |
| 8 | The membrane module upper end |
| 9 | Tube connector |
| 10 | |
| 11 | Collector pipe |
| 12 | Stainless steel stent |
| 13 | |
| 14 | |
| 15 | The center aeration tube |
The specific embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in Figure 1 and Figure 2, a kind of immersion hollow fiber film assembly mainly comprises framework, single bundle formula membrane module, collector pipe 11, aeration tube 14.Single bundle formula membrane module constitutes the structure that does not have tubular quill housing, such membrane module is suitable under water the use, it comprises that diameter is the membrane module upper end 8, membrane module lower end 6 of 300mm and restraints hollow fiber membrane bundle 1 by the hollow fiber membrane bundle 1, eight that 120 hollow-fibre membrane silks 3 are formed and be arranged in uniformly in the membrane module lower end 6 with the circumference form.The average pore size of the micropore of hollow-fibre membrane silk 3 is less than 0.4 μ m, and film silk surface apertures is less than 0.1 μ m, and the external diameter of film silk is 1.5mm, and material is a polypropylene.Two ends come together among membrane module upper end 8 and the membrane module lower end 6 with the epoxy resin casting, and with flexible-epoxy it are carried out second casting, prevent fracture of wire so that film silk root is protected.And flexible resin casting end face is flushed with the cast envelope body, thereby can prevent deposition in use.The monnolithic case of membrane module upper end 8 and membrane module lower end 6 is cup-shaped, and diameter of a circle suitable for reading is 300mm, and it is the cone tank of 200mm that diameter is wherein arranged in the membrane module lower end 6.Hollow-fibre membrane silk 3 is the perforate state in membrane module upper end 8, be closed pore state in membrane module lower end 6, and wherein membrane module upper end 8 is provided with the delivery port 7 that external diameter is 50mm, and membrane module lower end 6 is provided with the air inlet 5 that external diameter is 50mm.
As shown in Figure 3, in the cone tank in the membrane module lower end 6 butterfly aerator 2 is installed, the material of this butterfly aerator is selected the polymer inlet polymer for use, unique material has reduced the system gas resistance, reduce energy consumption, saved operating cost, had extraordinary oxygen utilization rate, solve obstruction or scale problems effectively, prolonged the service life of hollow fiber film assembly.Adopt macromolecular material, make aerator have shock-resistant, corrosion-resistant, resistant to elevated temperatures characteristic.The top of aerator is concordant with the casting end face of hollow-fibre membrane silk 3, and the bubble of ejection rises along the inclined-plane from solarization air cap 10 like this, can effectively wash away the deposition of hollow-fibre membrane silk 3 roots.Upwards the bubble of ejection has good scrub effect to hollow-fibre membrane silk 3 surfaces simultaneously.Butterfly aerator 2 is that the tube connector 9 of 20mm is communicated with air inlet 5 by external diameter.
As shown in Figure 5, the end enclosure of each bundle formula membrane module is circular.The delivery port 7 of upper end shell is connected with collector pipe 11 on every row's framework by loose joint or plug-in type hermetically-sealed construction, and above-mentioned collector pipe 11 plays the effect of drawing filtered solution as the filtered solution fairlead.The air inlet 5 of membrane module lower end 6 also is connected with aeration tube 14 on every row's framework by loose joint or plug-in type hermetically-sealed construction.Collector pipe 11 is 1.3m with the vertical range of aeration tube 14, makes whole immersion hollow fiber film assembly that the space of the suspension activity of 1.2m up and down can be arranged.
The collector pipe 11 that delivery port 7 and is positioned at immersion hollow fiber film assembly top is connected, the aeration tube 14 that air inlet 5 and is positioned at immersion hollow fiber film assembly below is connected, collector pipe 11 and one can provide the suction hose of 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 3 walls, and conflux into membrane module upper end 8, flow into collector pipe 11 through delivery port 7 again, extract out by water pump at last.Aeration tube 14 is connected with air blast, and the compressed air that source of the gas provides enters air inlet 5 through aeration tube 14, and the solarization air cap through the dish-shaped aerator 2 of tube connector 9 and membrane module lower end 6 diffuses out again, directly purges film silk root.
As shown in Figure 5, a plurality of single bundle formula membrane modules constitute a row.Delivery port 7, the air inlet 5 of each bundle formula membrane module are connected in parallel to collector pipe 11, aeration tube 14 respectively, form the immersion hollow fiber film assembly unit of a matrix form thus.
The structure of immersion hollow fiber film assembly is identical with structure among the embodiment 1.
As shown in Figure 6, four immersion hollow fiber film assemblies are formed a radioactive immersion hollow fiber film assembly unit, a plurality of radioactive immersion hollow fiber film assemblies unit immersion hollow fiber film assembly that forms a curtain formula in parallel can be according to the random extension length of engine request.Hollow fiber membrane bundle 1 is surrounded by liquid to be filtered during immersion hollow fiber film assembly cell operation, the compressed air that air blast provides enters from the suitable for reading of aeration tube 14, and enter the air inlet 5 of four immersion hollow fiber film assemblies through center aeration tube 15, after the solarization air cap 10 on the butterfly aerator 2 of tube connector 9 and membrane module lower end 6 diffuses out, directly purge film silk root.Collector pipe 11 and one can provide the water pump of negative pressure to be connected, and water to be clean enters film silk inside through the micropore on hollow-fibre membrane silk 3 walls, and confluxes into membrane module upper end 8, flows into collector pipe 11 through delivery port 7 again, extracts out by water pump at last.
Claims (3)
1, a kind of immersion hollow fiber film assembly, comprise framework, single bundle formula membrane module, collector pipe, aeration tube, it is characterized in that single bundle formula membrane module comprises that upper end delivery port, lower end have the air inlet of aerator and be filled in therebetween external pressure hollow-fibre membrane silk; A plurality of single bundle formula membrane module upper port are carried out parallel connection by collector pipe, constitute the top frame of immersion hollow fiber film assembly unit, and lower port are carried out parallel connection by aeration tube, constitute the under(-)chassis of immersion hollow fiber film assembly unit; Top frame and under(-)chassis connect the complete immersion hollow fiber film assembly unit of formation by stainless steel stent.
2, a kind of immersion hollow fiber film assembly according to claim 1, it is characterized in that, described immersion hollow fiber film assembly lower end has aerator, the profile of this aerator is a butterfly, place the centre of hollow fiber membrane bundle, be communicated with air inlet pipe, its aeration opening is towards hollow-fibre membrane silk root, and its aeration face is lower than film silk casting face, and wherein the aeration face is covering of the fan and arranges.
3, a kind of immersion hollow fiber film assembly according to claim 1 and 2 is characterized in that the material of described butterfly aerator is selected high molecular polymer for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201241908U CN201324602Y (en) | 2008-11-28 | 2008-11-28 | Submerged hollow-fibre membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201241908U CN201324602Y (en) | 2008-11-28 | 2008-11-28 | Submerged hollow-fibre membrane module |
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| Publication Number | Publication Date |
|---|---|
| CN201324602Y true CN201324602Y (en) | 2009-10-14 |
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| CNU2008201241908U Expired - Fee Related CN201324602Y (en) | 2008-11-28 | 2008-11-28 | Submerged hollow-fibre membrane module |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028005A (en) * | 2014-06-12 | 2014-09-10 | 中国农业大学 | Membrane extraction method for enriching urethane in grape wine |
| CN105174658A (en) * | 2015-10-29 | 2015-12-23 | 苏州首创嘉净环保科技股份有限公司 | Sanitary sewage treatment device used for ship |
| CN107185409A (en) * | 2017-05-11 | 2017-09-22 | 北京大井易通科技发展有限公司 | New center is aerated immersion type membrane component |
| CN109520775A (en) * | 2018-12-25 | 2019-03-26 | 河北华厚天成环保技术有限公司 | A kind of water quality on-line sampling device |
| CN112079426A (en) * | 2020-09-10 | 2020-12-15 | 夏建华 | Preparation device and preparation method of hydrogen water solution by utilizing air suction circulation of hollow fibers |
| CN115253689A (en) * | 2021-04-29 | 2022-11-01 | 天津膜天膜科技股份有限公司 | Hollow fiber nanofiltration membrane air washing flow channel, preparation method and use process |
-
2008
- 2008-11-28 CN CNU2008201241908U patent/CN201324602Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028005A (en) * | 2014-06-12 | 2014-09-10 | 中国农业大学 | Membrane extraction method for enriching urethane in grape wine |
| CN104028005B (en) * | 2014-06-12 | 2015-08-05 | 中国农业大学 | A kind of membrane extraction method of enrichment Dietary Ethyl Carbamate in Wine |
| CN105174658A (en) * | 2015-10-29 | 2015-12-23 | 苏州首创嘉净环保科技股份有限公司 | Sanitary sewage treatment device used for ship |
| CN107185409A (en) * | 2017-05-11 | 2017-09-22 | 北京大井易通科技发展有限公司 | New center is aerated immersion type membrane component |
| CN109520775A (en) * | 2018-12-25 | 2019-03-26 | 河北华厚天成环保技术有限公司 | A kind of water quality on-line sampling device |
| CN112079426A (en) * | 2020-09-10 | 2020-12-15 | 夏建华 | Preparation device and preparation method of hydrogen water solution by utilizing air suction circulation of hollow fibers |
| CN115253689A (en) * | 2021-04-29 | 2022-11-01 | 天津膜天膜科技股份有限公司 | Hollow fiber nanofiltration membrane air washing flow channel, preparation method and use process |
| CN115253689B (en) * | 2021-04-29 | 2024-01-26 | 天津膜天膜科技股份有限公司 | Hollow fiber nanofiltration membrane air-water washing flow passage, preparation method and use process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Northern Leader Chemical Science & Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20101128 |