CN107890781A - A kind of Hollow Fiber Ultrafiltration counter-infiltration integrates membrane module and its preparation technology - Google Patents

A kind of Hollow Fiber Ultrafiltration counter-infiltration integrates membrane module and its preparation technology Download PDF

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Publication number
CN107890781A
CN107890781A CN201711083380.XA CN201711083380A CN107890781A CN 107890781 A CN107890781 A CN 107890781A CN 201711083380 A CN201711083380 A CN 201711083380A CN 107890781 A CN107890781 A CN 107890781A
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China
Prior art keywords
membrane
reverse osmosis
hollow fiber
water
bag
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Pending
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CN201711083380.XA
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Chinese (zh)
Inventor
王薇
文鹏
于湉
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Tianjin Longyuan New Material Technology Co Ltd
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Tianjin Longyuan New Material Technology Co Ltd
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Priority to CN201711083380.XA priority Critical patent/CN107890781A/en
Publication of CN107890781A publication Critical patent/CN107890781A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02Hollow fibre modules
    • B01D63/021Manufacturing thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/58Multistep processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02Hollow fibre modules
    • B01D63/021Manufacturing thereof
    • B01D63/022Encapsulating hollow fibres
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention discloses a kind of Hollow Fiber Ultrafiltration counter-infiltration and integrates membrane module and its preparation technology, and the integrated membrane module includes:Central tube, ultra-low-pressure reverse osmosis film, production water flow passage net, hollow fiber ultrafiltration membrane and membrane module shell.There is the mouth of a river on the central tube tube wall, one end sealing, another end opening is as pure water delivery port.The ultra-low-pressure reverse osmosis film highest operating pressure is no more than 0.4MPa, and ultra-low-pressure reverse osmosis film is welded as into reverse osmosis membrane bag;The hollow-fibre membrane ultrafiltration is inner pressed ultra filtration hollow fiber membrane, is uniformly filled between two neighboring reverse osmosis membrane bag.Membrane module is integrated according to the Hollow Fiber Ultrafiltration counter-infiltration of the present invention, overall structure is more simplified, and can dispense the multistage pretreatment unit of existing purifier, therefore can play the effect for saving material and environmental protection.Ultra filtration hollow fiber membrane part reversely rushes cleaning film inwall by periodically changing Inlet and outlet water direction simultaneously, can extend the overall service life of membrane component with several times.

Description

A kind of Hollow Fiber Ultrafiltration-counter-infiltration integrates membrane module and its preparation technology
Technical field
The present invention relates to water treatment facilities manufacturing technology field, more particularly to a kind of Hollow Fiber Ultrafiltration-counter-infiltration integrates Membrane module and its preparation technology.
Background technology
Membrane separation technique is the new and high technology of an emerging a variety of subject crossings, and it is most important to be acknowledged as 21st century One of new technology.Seperation film can be divided into microfiltration membranes, milipore filter, NF membrane, forward osmosis membrane and reverse osmosis by the size in its aperture Permeable membrane etc., wherein ultrafiltration are the water technologies between micro-filtration and nanofiltration, and milipore filter pore diameter range is 0.001-0.02 μ M, molecular cut off are generally 500-1000000 Da, and trapped substance is usually macromolecular particle and colloidal particle, operating pressure one As be 0.2-0.4 MPa.Hollow fiber ultrafiltration membrane due to its good pressure-resistant performance, packed density is big, specific surface area is high the advantages that quilt It is widely used in water treatment process.
Reverse osmosis membrane pore diameter range is 0.1-1 nm, separation object be dissolved in ion in water and molecular weight hundreds of with On organic matter.With resident's issuing to the raising that is recognized with water quality and national environmental protection policy, reverse osmosis membrane is being lived It is more and more wider with industrial application field, including drinking water, boiler feedwater, medicine, food, bitter desalination and work The multiple fields such as industry wastewater treatment, particularly spiral wound reverse-osmosis membrane element, designed because its is compact, cheap price makes It occupies most of market share.
Existing reverse-osmosis membrane element uses concentrated water filter to provide intake tunnel for reverse osmosis membrane, and concentrated water filter quality is hard, Easily reverse osmosis membrane is caused to scratch, also easy contaminant deposition, and then influence separating property and the use of reverse-osmosis membrane element Life-span.
Reverse osmosis membrane has higher requirement, the too poor pollution that can cause reverse osmosis membrane of water quality, shadow to the water quality of raw water simultaneously Counter-infiltration membrane separation efficiency is rung, reduces the service life of reverse osmosis membrane, existing solution method is when using reverse osmosis membrane Some preposition pretreatment units, such as activated carbon, PP cottons etc. are equipped with, so make that whole filtration system is cumbersome, space-consuming is big, simultaneously These materials are easy to long bacterium and cause secondary pollution, it is necessary to regularly replace, and cause the waste of material and the pollution of environment.
The content of the invention
In order to overcome above-mentioned technical problem, the main object of the present invention is to provide a kind of Hollow Fiber Ultrafiltration-counter-infiltration collection Into membrane module and its preparation technology, it is intended to solve the deficiencies in the prior art, i.e., disposable preposition pretreatment material in water treatment procedure The waste of material is short with the service life of overall membrane component greatly.
To achieve the above object, a kind of Hollow Fiber Ultrafiltration-counter-infiltration proposed by the present invention integrates membrane module, and it prepares work Skill includes:
1. preparing reverse osmosis membrane bag, from ultra-low-pressure reverse osmosis diaphragm, specific method is along the back side by reverse osmosis membrane(Non-woven fabrics Face)Two sides of diaphragm rolled well will be sealed, make a reverse osmosis membrane bag by doubling, centre insertion water guide net using AB glue.
2. the reverse osmosis membrane bag is welded on central tube with glue successively, film bag opening crosses water towards on central tube Mouthful.The film bag being welded is rolled up into a circle by specific direction on central tube, increases the fastness of film bag.
3. between inner pressed hollow fiber ultrafiltration membrane is uniformly filled into described two film bags, and the Hollow Fiber Ultrafiltration Film length is longer than film bag parallel with it, reserves casting, the distance of cut end(At Fig. 2 dotted lines).
4. by hollow-fibre membrane, reverse osmosis membrane bag and central tube overall package to membrane module shell, epoxy resin is used Hollow-fibre membrane both ends and membrane module shell are cast, cut end.The shell(Such as Fig. 2)For cylinder, both ends are respectively The water inlet and delivery port of raw water, and it is furnished with corresponding screw cap, there is a reverse osmosis concentrated shrink delivery port shell side.Center Pipe one end is pure water delivery port, and the other end seals.
Compared with prior art, a kind of Hollow Fiber Ultrafiltration-counter-infiltration of the present invention integrates membrane module and its preparation Technique has the characteristics that:
1. the form of membrane module being integrated using Hollow Fiber Ultrafiltration-counter-infiltration so that whole water purification structure is more simplified, is compact, Save space, material and running cost;
2. hollow-fibre membrane is evenly distributed between reverse osmosis membrane bag, concentrated water filter can be played a part of, improve whole component Interior streamflow regime, more uniform water stream channel is provided for reverse osmosis membrane bag;
3. compared with the concentrated water filter used in existing reverse-osmosis membrane element, hollow fiber ultrafiltration membrane profile is carefully round and soft, will not Reverse osmosis membrane surface is caused to scratch, ensures membrane separation efficiency and stability;
4. the form of membrane module is integrated using Hollow Fiber Ultrafiltration-counter-infiltration, it is convenient to omit before the multistage for falling existing purifier Pretreatment unit is put, the effect for saving material and environmental protection can be played.Hollow fiber ultrafiltration membrane is by periodically changing disengaging simultaneously Water direction reversely rushes cleaning film inwall, can count the service life for extending overall membrane module.
Brief description of the drawings
Fig. 1 is the Structure of cross section schematic diagram of the embodiment of the present invention.
Fig. 2 is the structural representation of the embodiment of the present invention.
In figure, 1 is reverse osmosis membrane, and 2 be the production network of rivers, and 3 be central tube, and 4 be hollow-fibre membrane, and 5 be membrane module shell, and 6 are The water inlet of membrane module, 7 be hollow fiber ultrafiltration membrane condensed water delivery port, and 8 be reverse osmosis concentrated shrink delivery port, and 9 be that pure water goes out The mouth of a river, 10 be seal.
Embodiment
Below in conjunction with the technical scheme in 1,2 pairs of embodiment of the present invention of accompanying drawing in the embodiment of the present invention carry out it is clear, It is fully described by, the scope that the present invention is protected includes but is not limited to embodiment described below.
Process for using:As shown in Figure 1, 2, raw water is intake from the water inlet 6 of the integral membrane module using membrane pump, adjusted Appropriate pressure is saved, raw water is after the filtering of inner pressed hollow fiber ultrafiltration membrane 4, and condensed water is discharged by delivery port 7, filter water The surface of reverse osmosis membrane 1 is flowed to along the outer wall of hollow-fibre membrane 4.Water after reverse osmosis membrane filtration flows to center along the production network of rivers 2 Pipe 3, mouth of a river outflow is crossed through central tube.Pure water is obtained by delivery port 9 of the above filter process can in integrated membrane module.
Embodiment 1
First, reverse osmosis membrane bag is made, concrete operation method is:Pass through the method system of the interfacial polymerization on flat plate ultrafiltration basement membrane Standby polysulfones-polyamide ultra-low-pressure reverse osmosis diaphragm, by reverse osmosis membrane 1 along the back side(Nonwoven cloth cover)Doubling, centre insertion water guide Net 2, two sides of diaphragm rolled well will be sealed with water guide net using AB glue, make the reverse osmosis membrane bag of an one end open.
Secondly, the reverse osmosis membrane bag is welded on central tube 3 with glue successively, film bag opening is towards the mistake on central tube The mouth of a river.The film bag being welded is rolled up into a circle by specific direction on central tube, increases the fastness of film bag.
Then, between polysulfones inner pressed hollow fiber ultrafiltration membrane 4 being uniformly filled into above-mentioned two neighboring film bag, and it is described Ultra filtration hollow fiber membrane length is longer than film bag parallel with it, reserves casting, the distance of cut end(At Fig. 2 dotted lines).
Finally, by hollow-fibre membrane, reverse osmosis membrane bag and central tube overall package to membrane module shell 5, epoxy is used Resin is cast hollow-fibre membrane both ends and membrane module shell, cut end.The shell is cylinder, and both ends are respectively raw water Water inlet 6 and delivery port 7, and be furnished with corresponding screw cap, there is a reverse osmosis concentrated shrink delivery port 8 shell side.Center Pipe one end is pure water delivery port 9, and the other end 10 seals.
Embodiment 2
First, reverse osmosis membrane bag is made, concrete operation method is:Pass through the method system of the interfacial polymerization on flat plate ultrafiltration basement membrane Standby polyether sulfone-poly aromatic acid amides ultra-low-pressure reverse osmosis diaphragm, by reverse osmosis membrane 1 along the back side(Nonwoven cloth cover)Doubling, in interleave Enter water guide net 2, two sides of diaphragm rolled well will be sealed with water guide net using AB glue, make the counter-infiltration of an one end open Film bag.
Secondly, the reverse osmosis membrane bag is welded on central tube 3 with glue successively, film bag opening is towards the mistake on central tube The mouth of a river.The film bag being welded is rolled up into a circle by specific direction on central tube, increases the fastness of film bag.
Then, between Kynoar inner pressed hollow fiber ultrafiltration membrane 4 being uniformly filled into above-mentioned two neighboring film bag, And the ultra filtration hollow fiber membrane length is longer than film bag parallel with it, casting, the distance of cut end are reserved(Such as Fig. 2 dotted lines Place).
Finally, by hollow-fibre membrane, reverse osmosis membrane bag and central tube overall package to membrane module shell 5, epoxy is used Resin is cast hollow-fibre membrane both ends and membrane module shell, cut end.The shell is cylinder, and both ends are respectively raw water Water inlet 6 and delivery port 7, and be furnished with corresponding screw cap, there is a reverse osmosis concentrated shrink delivery port 8 shell side.Center Pipe one end is pure water delivery port 9, and the other end 10 seals.
Above is embodiments of the present invention.It should be pointed out that to those of ordinary skill in the art, do not departing from On the premise of base its general principles, some improvements and modifications can also be made, these improvements and modifications are also considered as the present invention Protection domain.

Claims (6)

1. a kind of Hollow Fiber Ultrafiltration-counter-infiltration integrates membrane module and its preparation technology, it is characterised in that including:Central tube, make For the water output duct of pure water;Ultra-low-pressure reverse osmosis film, reverse osmosis membrane is along the back side(Nonwoven cloth cover)Doubling, centre insertion water guide Net, by two side welded seals of diaphragm to rolling well, make a reverse osmosis membrane bag;Water flow passage net is produced, inserts above-mentioned doubling In good diaphragm, two side welded seals, a reverse osmosis membrane bag is made;Hollow fiber ultrafiltration membrane, it is the hollow fibre of inner pressed Milipore filter is tieed up, is uniformly filled between two reverse osmosis membrane bags;Membrane module shell, for by hollow fiber ultrafiltration membrane and counter-infiltration Film bag cast molding.
2. central tube according to claim 1, it is characterised in that had the mouth of a river, central tube one on the central tube tube wall End sealing, delivery port of another end opening as pure water.
3. ultra-low-pressure reverse osmosis film according to claim 1, it is characterised in that highest operating pressure is no more than 0.4MPa, Ultra-low-pressure reverse osmosis film is welded as reverse osmosis membrane bag, concrete operations are:Reverse osmosis membrane is along the back side(Nonwoven cloth cover)Doubling, in Between insert water guide net, two sides of diaphragm rolled well will be sealed using AB glue, make a reverse osmosis membrane bag.
4. production water flow passage net according to claim 1, it is characterised in that it is wide runner net, it is pure for film bag to be filtered The rapid water conservancy diversion of water, slow down the resistance of water.
5. hollow fiber ultrafiltration membrane according to claim 1, it is characterized in that inner pressed ultra filtration hollow fiber membrane, uniformly filling To between two neighboring reverse osmosis membrane bag, and the ultra filtration hollow fiber membrane length is longer than reverse osmosis membrane bag parallel with it, Reserve casting, the distance of cut end.
6. membrane module shell according to claim 1, it is characterised in that seal hollow fiber ultrafiltration membrane and reverse osmosis membrane bag It is attached in membrane module shell, hollow-fibre membrane both ends and membrane module shell is cast using epoxy resin, cut end, the shell is Cylinder, both ends are open respectively, and there is a reverse osmosis concentrated shrink delivery port side, and water outlet is provided with valve and can adjust water outlet Amount.
CN201711083380.XA 2017-11-07 2017-11-07 A kind of Hollow Fiber Ultrafiltration counter-infiltration integrates membrane module and its preparation technology Pending CN107890781A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109336224A (en) * 2018-11-30 2019-02-15 佛山市云米电器科技有限公司 Collect the filter core and water purifier of ultrafiltration and reverse osmosis integrated design
CN116726709A (en) * 2023-07-15 2023-09-12 广东永聚河科技有限公司 Hollow fiber ultrafiltration membrane component for water treatment
CN117699917A (en) * 2023-12-29 2024-03-15 江西国膜环保科技有限公司 Radial multi-membrane bag reverse osmosis membrane
CN120817652A (en) * 2025-09-12 2025-10-21 深圳市鹏翔汇星水处理技术有限公司 A high-flux stainless steel reverse osmosis membrane group and its dynamic pressure equalization method

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CN106039999A (en) * 2016-07-07 2016-10-26 北京碧水源膜科技有限公司 Unidirectional grid device with reverse osmosis membrane elements and method for manufacturing unidirectional grid device
CN106076123A (en) * 2016-08-22 2016-11-09 厦门建霖工业有限公司 A kind of big flow long-life coiled reverse osmosis membrane element
CN206240334U (en) * 2016-08-31 2017-06-13 北京碧水源膜科技有限公司 A kind of slit is aerated rolling hollow fiber uf membrane system

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CN2485293Y (en) * 2001-07-05 2002-04-10 杨文玮 Hollow fiber ultrafiltering membrane elements with pressure housing
WO2004069391A1 (en) * 2003-02-03 2004-08-19 Toyo Boseki Kabushiki Kaisha Hollow fiber membrane module and module arrangement group thereof
CN201240892Y (en) * 2008-05-20 2009-05-20 浙江玉泉环境工程有限公司 Pure water production apparatus with reverse osmosis membrane
CN201404723Y (en) * 2009-03-24 2010-02-17 杭州科诺过滤器材有限公司 Filter element
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109336224A (en) * 2018-11-30 2019-02-15 佛山市云米电器科技有限公司 Collect the filter core and water purifier of ultrafiltration and reverse osmosis integrated design
CN116726709A (en) * 2023-07-15 2023-09-12 广东永聚河科技有限公司 Hollow fiber ultrafiltration membrane component for water treatment
CN117699917A (en) * 2023-12-29 2024-03-15 江西国膜环保科技有限公司 Radial multi-membrane bag reverse osmosis membrane
CN117699917B (en) * 2023-12-29 2025-12-09 江西国膜环保科技有限公司 Radial multi-membrane bag reverse osmosis membrane
CN120817652A (en) * 2025-09-12 2025-10-21 深圳市鹏翔汇星水处理技术有限公司 A high-flux stainless steel reverse osmosis membrane group and its dynamic pressure equalization method
CN120817652B (en) * 2025-09-12 2025-12-09 深圳市鹏翔汇星水处理技术有限公司 High-flux stainless steel reverse osmosis membrane group and dynamic pressure equalization method thereof

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Application publication date: 20180410