CN105536542A - Gas-ejecting self-cleaning type roll membrane filtration apparatus and gas permeation rate detection method using filtration apparatus - Google Patents
Gas-ejecting self-cleaning type roll membrane filtration apparatus and gas permeation rate detection method using filtration apparatus Download PDFInfo
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- CN105536542A CN105536542A CN201510931028.1A CN201510931028A CN105536542A CN 105536542 A CN105536542 A CN 105536542A CN 201510931028 A CN201510931028 A CN 201510931028A CN 105536542 A CN105536542 A CN 105536542A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D2053/221—Devices
Abstract
The invention discloses a gas-ejecting self-cleaning type roll membrane filtration apparatus and a gas permeation rate detection method using the filtration apparatus. A vertical membrane housing is arranged, high-pressure compressed gas is inputted when materials are charged, so that a strong force is exerted on the surface of a filtration membrane during filtering, aggregation of pollutants on the membrane surface is avoided, generation conditions of pollutants are destroyed, membrane blockage of the filtration membrane is prevented, treatment efficiency of the membrane is higher, and water flux is kept stable; self-cleaning of the apparatus is carried out during filtration, so that the usage life of the roll membrane element is prolonged, excessive flushing and cleaning for the apparatus are avoided, and operation cost of the apparatus is reduced. Different types of compressed gas is used for test, gas permeation rates of different types of compressed gas in the filtration membrane are obtained, so that reference data for selecting appropriate types of compressed gas for the filtration apparatus is provided.
Description
Technical field
The present invention relates to a kind of aerating self-purification type roll membrane filtering device and apply the gas permeation rate detection method of this filter, belong to a kind of technical field of membrane separation or water supply and drainage, environmental technology field.
Background technology
Membrane separation technique refers under motive force effect, utilizes the selective penetrated property of film, makes the technology that in mixture, each component is separated.Membrane separation technique is widely used in the fields such as environmental protection, food and drink, pharmacy, chemical industry.In mankind nowadays, society vigorously advocates in the trend of also carry out earnestly energy-saving and emission-reduction, recycling economy, and the application of membrane technology in feed separation and water treatment will be more outstanding.
UF membrane is divided into micro-filtration, ultrafiltration, nanofiltration and counter-infiltration by the large I of incision of matter, is roughly divided into doughnut, tubular membrane, board-like film and rolled film by the shape of film, membrane module.The membrane area that rolled film is full of with its unit volume is large, flow passage design, operation power cost is low and application quantity is maximum, and application is the widest.
Affecting film separation system operation most critical factor is that after suppressing fouling membrane and fouling membrane, how more effective cleaning, particularly UF membrane are applied to feed separation, purification, concentrated and larger Treated sewage reusing.In the prior art, the usual transversely arranged combination of rolled membrane module, the air water cleaning method of effective low cost can not be applied, even if because membrane module enters a small amount of gas in running, gas also can be caused in membrane component upper-part centralized to cause the damage of membrane component.
Chinese patent literature CN20111079456.8 discloses a kind of vertical roll type membrane filtering device and cleaning method thereof, and wherein mention membrane module setting and put, the micro-bubble utilizing air water to be formed carries out more effective cleaning to film surface.During shutdown, the dense water of automatic-discharging (sewage), fills low pure water (water purification), thus prevents the blocking of film, reduces operating cost.Although the micro-bubble that this vertical roll type membrane can be formed by air water effectively cleans film surface, but it cannot destroy the Production conditions of pollutant, can only passively clear up, simultaneously when treating material is many containing tacky contaminate, or time higher containing fouling tendency tendency material, cleaning performance is poor, flux depression, service life reduces, and causes film treatment effeciency to reduce.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides and a kind ofly can prevent that filter membrane from blocking, water flux is stablized, film treatment effeciency is high aerating self-purification type roll membrane filtering device and apply the gas permeation rate detection method of this filter.
The technical solution adopted in the present invention is mainly: a kind of aerating self-purification type roll membrane filtering device, comprise the film shell erect and place, in described film shell, the wound membrane element adapted to it is installed, on described film shell, lower end is separately installed with, lower seal head, permeate efferent duct is provided with in described wound membrane element, film shell two ends are respectively arranged with charging aperture and concentrated solution outlet, described charging aperture is connected with dehvery pump, described dehvery pump delivery outlet is connected with aerator, described aerator includes high pressure gasing pump or high-pressure gas cylinder, described concentrated solution outlet is connected with moisture trap, described moisture trap is provided with leakage fluid dram and exhaust outlet, described exhaust outlet is connected with flowmeter.
As the improvement of technique scheme, described aerator also includes pressure regulator, and described pressure regulator is arranged at high pressure gasing pump or between high-pressure gas cylinder delivery outlet and dehvery pump delivery outlet.
As the further improvement of technique scheme, described film shell is provided with pressure-limiting exhaust valve, and when filter air pressure inside exceedes the force value of setting, pressure-limiting exhaust valve opens exhaust step-down automatically.
Further, the gas of described high pressure gasing pump or high-pressure gas cylinder input charging aperture is compression Purge gas, and compression Purge gas is nitrogen or inert gas.
Further, the outlet of described permeate efferent duct is connected with the second moisture trap, and described second moisture trap is provided with leakage fluid dram and exhaust outlet, and described exhaust outlet is connected with flowmeter.
Present invention also offers a kind of gas permeation rate detection method applying above-mentioned filter, comprise the following steps:
S1: feed liquid to be filtered is inputted charging aperture by dehvery pump, Compressed Gas inputs charging aperture by aerator and charges to input quantity;
S2: feed liquid and Compressed Gas form gas liquid mixture, gas liquid mixture to enter in film shell and flows through wound membrane element surface, and part gas liquid mixture forms permeate through film surface and enters permeate efferent duct and discharge, and all the other are discharged by concentrated solution outlet;
S3: the discharge rate being obtained Compressed Gas by the moisture trap be connected with concentrated solution outlet;
S4: by the discharge rate of Compressed Gas and input quantity comparing calculation, obtains the transmitance of Compressed Gas.
The invention has the beneficial effects as follows:
A kind of aerating self-purification type roll membrane filtering device of the present invention and apply the gas permeation rate detection method of this filter, by being provided with the film shell of setting, input high pressure compressed gas during charging simultaneously, make when filtering, filter membrane surface is subject to powerful shearing force, avoid pollutant at film surface aggregation, destroy the Production conditions of pollutant, prevent filter membrane from blocking, make the efficiency of film process can be higher, water flux keeps stable, this filter can carry out self-cleaning while carrying out filtering, also the use of wound membrane element is made to receive the order longer, avoid carrying out too much flushing and cleaning to device, decrease the operating cost of device, additionally by application the method, dissimilar Compressed Gas is used to test, the transmitance of dissimilar Compressed Gas in filter membrane can be obtained, thus select the Compressed Gas of suitable type to provide reference for filter.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
With reference to Fig. 1, a kind of aerating self-purification type roll membrane filtering device of the present invention, comprise the film shell 1 erect and place, the wound membrane element 2 adapted to it is installed in described film shell 1, on described film shell 1, lower end is separately installed with, lower seal head 3, 4, permeate efferent duct 20 is provided with in described wound membrane element 2, film shell 1 two ends are respectively arranged with charging aperture 10 and concentrated solution outlet 11, described charging aperture 10 is connected with dehvery pump 5, described dehvery pump 5 delivery outlet is connected with aerator 6, described aerator 6 includes high pressure gasing pump or high-pressure gas cylinder, described concentrated solution outlet 11 is connected with moisture trap 7, described moisture trap 7 is provided with leakage fluid dram and exhaust outlet, described exhaust outlet is connected with flowmeter 8.Input high pressure compressed gas during this filter charging simultaneously, make when filtering, filter membrane surface is subject to powerful shearing force, avoid pollutant at film surface aggregation, destroy the Production conditions of pollutant, prevent filter membrane from blocking, make the efficiency of film process can be higher, water flux keeps stable, this filter can carry out self-cleaning while carrying out filtering, also make the use of wound membrane element receive the order longer, avoid carrying out too much flushing and cleaning to device, decrease the operating cost of device.
In this filter, described aerator 6 also includes pressure regulator 9, described pressure regulator 9 is arranged at high pressure gasing pump or between high-pressure gas cylinder delivery outlet and dehvery pump 5 delivery outlet, by being provided with pressure regulator 9, regulate the input pressure of Compressed Gas to make it to keep balance between the input pressure of feed liquid, avoid Compressed Gas input pressure to cross ambassador's feed liquid and be back to dehvery pump 5.
For ensureing the security of operation of filter, described film shell 1 is provided with pressure-limiting exhaust valve 12, when this filter air pressure inside exceedes the force value of setting, pressure-limiting exhaust valve 12 opens exhaust step-down automatically, avoid the damage causing membrane module because pressure is excessive, the pressure threshold value of pressure-limiting exhaust valve 12 sets according to actual needs.
In the present invention, the gas of high pressure gasing pump or high-pressure gas cylinder input charging aperture is compression Purge gas, and compression Purge gas is nitrogen or inert gas, and nitrogen or inert gas can not produce chemical reaction with feed liquid, avoid feed liquid to go bad, and ensures the effect of filtering.
The outlet of permeate efferent duct 20 is connected with the second moisture trap 13, described second moisture trap 13 is provided with leakage fluid dram and exhaust outlet, described exhaust outlet is connected with flowmeter, by being provided with the second moisture trap, make user intuitively can know the transit dose of Compressed Gas by filter membrane, thus prepare for studying further.
The present invention also provides a kind of gas permeation rate detection method applying above-mentioned filter, comprises the following steps:
S1: feed liquid to be filtered is inputted charging aperture by dehvery pump 5, Compressed Gas inputs charging aperture 10 by aerator 6 and charges to input quantity;
S2: feed liquid and Compressed Gas form gas liquid mixture, gas liquid mixture to enter in film shell 1 and flows through wound membrane element surface, part gas liquid mixture enters permeate efferent duct 20 through film surface formation permeate and discharges, and all the other are discharged by concentrated solution outlet 11;
S3: the discharge rate being obtained Compressed Gas by the moisture trap 8 be connected with concentrated solution outlet 11;
S4: by the discharge rate of Compressed Gas and input quantity comparing calculation, obtains the transmitance of Compressed Gas.
By application the method, use dissimilar Compressed Gas to test, the transmitance of dissimilar Compressed Gas in filter membrane can be obtained, thus select the Compressed Gas of suitable type to provide reference for above-mentioned filter.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, as long as the technical scheme realizing the object of the invention with basic same approach all belongs within protection scope of the present invention.
Claims (6)
1. an aerating self-purification type roll membrane filtering device, comprise the film shell (1) erect and place, the wound membrane element (2) adapted to it is installed in described film shell (1), on described film shell (1), lower end is separately installed with, lower seal head (3, 4), permeate efferent duct (20) is provided with in described wound membrane element (2), film shell (1) two ends are respectively arranged with charging aperture (10) and concentrated solution outlet (11), described charging aperture (10) is connected with dehvery pump (5), it is characterized in that: described dehvery pump (5) delivery outlet is connected with aerator (6), described aerator (6) includes high pressure gasing pump or high-pressure gas cylinder, described concentrated solution outlet (11) is connected with moisture trap (7), described moisture trap (7) is provided with leakage fluid dram and exhaust outlet, described exhaust outlet is connected with flowmeter (8).
2. a kind of aerating self-purification type roll membrane filtering device according to claim 1, it is characterized in that: described aerator (6) also includes pressure regulator (9), described pressure regulator (9) is arranged at high pressure gasing pump or between high-pressure gas cylinder delivery outlet and dehvery pump (5) delivery outlet.
3. a kind of aerating self-purification type roll membrane filtering device according to claim 1, it is characterized in that: described film shell (1) is provided with pressure-limiting exhaust valve (12), when filter air pressure inside exceedes the force value of setting, pressure-limiting exhaust valve (12) opens exhaust step-down automatically.
4. a kind of aerating self-purification type roll membrane filtering device according to claim 1, is characterized in that: the gas of described high pressure gasing pump or high-pressure gas cylinder input charging aperture (10) is compression Purge gas, and compression Purge gas is nitrogen or inert gas.
5. a kind of aerating self-purification type roll membrane filtering device according to claim 1, it is characterized in that: the outlet of described permeate efferent duct (20) is connected with the second moisture trap (13), described second moisture trap (13) is provided with leakage fluid dram and exhaust outlet, and described exhaust outlet is connected with flowmeter.
6. application rights requires a gas permeation rate detection method for filter described in 1, it is characterized in that, comprises the following steps:
S1: by feed liquid to be filtered by dehvery pump (5) input charging aperture (10), Compressed Gas inputs charging aperture (10) by aerator (6) and charges to input quantity;
S2: feed liquid and Compressed Gas form gas liquid mixture, gas liquid mixture to enter in film shell (1) and flows through wound membrane element surface, part gas liquid mixture forms permeate through film surface and enters permeate efferent duct (20) discharge, and all the other are discharged by concentrated solution outlet (11);
S3: the discharge rate being obtained Compressed Gas by the moisture trap (7) be connected with concentrated solution outlet (11);
S4: by the discharge rate of Compressed Gas and input quantity comparing calculation, obtains the transmitance of Compressed Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510931028.1A CN105536542A (en) | 2015-12-14 | 2015-12-14 | Gas-ejecting self-cleaning type roll membrane filtration apparatus and gas permeation rate detection method using filtration apparatus |
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|---|---|---|---|
| CN201510931028.1A CN105536542A (en) | 2015-12-14 | 2015-12-14 | Gas-ejecting self-cleaning type roll membrane filtration apparatus and gas permeation rate detection method using filtration apparatus |
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| CN105536542A true CN105536542A (en) | 2016-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582211A (en) * | 2016-12-28 | 2017-04-26 | 河北工业大学 | Bubble strengthening type membrane absorption method for seawater flue gas desulfurization |
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| JPS5113389A (en) * | 1974-07-24 | 1976-02-02 | Ebara Infilco | Shintomakuhonyoru bunrihoho |
| JPS5621615A (en) * | 1979-07-26 | 1981-02-28 | Iwai Kikai Kogyo Kk | Prevention of gel layer adhesion on membrane of flat membrane type ultrafiltration device |
| WO1997004857A1 (en) * | 1995-07-27 | 1997-02-13 | Isis Innovation Limited | Membrane filtration apparatus |
| CN201023029Y (en) * | 2007-04-13 | 2008-02-20 | 广州美能材料科技有限公司 | External pressure pipe type hollow fiber filtering device |
| CN201505512U (en) * | 2009-05-07 | 2010-06-16 | 广州美能材料科技有限公司 | Gas-water mixing cleaning device for an immersion type hollow fiber membrane module |
| JP2011062632A (en) * | 2009-09-16 | 2011-03-31 | Kobelco Eco-Solutions Co Ltd | Method and apparatus for treating water using fine air bubbles |
| CN102179179A (en) * | 2011-03-31 | 2011-09-14 | 江门市创源水处理科技有限公司 | Vertical roll membrane filtering device and cleaning method thereof |
| CN205269418U (en) * | 2015-12-14 | 2016-06-01 | 广东创源节能环保有限公司 | Formula membrane filter equipment is rolled up to air entrainment self -purification type |
-
2015
- 2015-12-14 CN CN201510931028.1A patent/CN105536542A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5113389A (en) * | 1974-07-24 | 1976-02-02 | Ebara Infilco | Shintomakuhonyoru bunrihoho |
| JPS5621615A (en) * | 1979-07-26 | 1981-02-28 | Iwai Kikai Kogyo Kk | Prevention of gel layer adhesion on membrane of flat membrane type ultrafiltration device |
| WO1997004857A1 (en) * | 1995-07-27 | 1997-02-13 | Isis Innovation Limited | Membrane filtration apparatus |
| CN201023029Y (en) * | 2007-04-13 | 2008-02-20 | 广州美能材料科技有限公司 | External pressure pipe type hollow fiber filtering device |
| CN201505512U (en) * | 2009-05-07 | 2010-06-16 | 广州美能材料科技有限公司 | Gas-water mixing cleaning device for an immersion type hollow fiber membrane module |
| JP2011062632A (en) * | 2009-09-16 | 2011-03-31 | Kobelco Eco-Solutions Co Ltd | Method and apparatus for treating water using fine air bubbles |
| CN102179179A (en) * | 2011-03-31 | 2011-09-14 | 江门市创源水处理科技有限公司 | Vertical roll membrane filtering device and cleaning method thereof |
| CN205269418U (en) * | 2015-12-14 | 2016-06-01 | 广东创源节能环保有限公司 | Formula membrane filter equipment is rolled up to air entrainment self -purification type |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582211A (en) * | 2016-12-28 | 2017-04-26 | 河北工业大学 | Bubble strengthening type membrane absorption method for seawater flue gas desulfurization |
| CN106582211B (en) * | 2016-12-28 | 2019-01-29 | 河北工业大学 | A kind of method that bubble strengthens formula film absorption flue gas desulfurization with seawater |
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Application publication date: 20160504 |
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