CN103591648A - Air purification method and device based on membrane separation technology and water washing purification - Google Patents
Air purification method and device based on membrane separation technology and water washing purification Download PDFInfo
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- CN103591648A CN103591648A CN201310542752.6A CN201310542752A CN103591648A CN 103591648 A CN103591648 A CN 103591648A CN 201310542752 A CN201310542752 A CN 201310542752A CN 103591648 A CN103591648 A CN 103591648A
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Abstract
The invention discloses an air purification method based on the membrane separation technology and water washing purification. Air is introduced into a hollow fiber membrane tube, suspended particulate matter and macromolecular organic pollutants in the air are intercepted and separated through membrane holes in the hollow fiber membrane tube, then, the air penetrates through a water layer in a mode of bubbles, water-soluble pollutants in the air are removed, and the purified air is obtained. The invention further discloses an air purification device based on the membrane separation and water washing purification technology. The method and device are mainly based on the membrane separation and water washing purification technology, activated carbon adsorption and ultraviolet sterilization are combined, and therefore air in closed space can be comprehensively purified, energy is saved, and noise is low.
Description
Technical field
The present invention relates to air purifying process field, relate in particular to a kind of air purification method and device based on membrane separation technique and water washing cleaning.
Background technology
Some experts claim, after " coal smoke type ", " photochemical fog type " pollute, modern is just entering take " room air pollution " the 3rd pollution period for indicating.Modern has more than 80%, and average 90% time is spent indoor, and in traditional architecture, the normal employing of people introduced indoor draft type by outdoor air, improves indoor thermal comfort condition and air quality.Along with being widely used of heating air conditioning, for the consideration of energy saving of system, people start to improve the seal degree of building, reduce resh air requirement simultaneously, cause indoor pollutant to can not get new wind dilution and concentration rising.In addition, the pollution problem of outdoor air is also on the rise, and pollutant, especially PM2.5 in new wind, can enter human lung, very big to human health damage.
Existing air purifying process mainly contains: electrostatic precipitation technology, active carbon adsorption technology, strainer filtering technology, anion technology, the asymmetric plasma technology of low temperature, light catalytic purifying technology etc.
The problem that prior art mainly exists has: one, dedusting is not thorough, can produce secondary pollution, as electrostatic precipitation, anion technology; Two, purification process can produce harmful side product, as electrostatic precipitation, anion technology and light catalytic purifying technology all can produce the harmful materials such as ozone, nitrogen oxide.
What also have now a class air purifier employing is water washing cleaning, " a kind of taper-shaped internal spiral water-absorption type rinsing air purifying device " that " water washing air purifier ", the number of patent application that is 201120154964.3 as number of patent application is 200820118641.7 etc., they are that air is purified when by cascade or water curtain, this clarifier produces cascade or water curtain need to expend a large amount of power and waters, and noise is very large.
Summary of the invention
For overcoming the defect existing in prior art, the invention provides a kind of air purification method and device based on membrane separation technique and water washing cleaning, on the basis of membrane separation technique and water washing cleaning air technology, and in conjunction with existing charcoal absorption and ultraviolet sterilization technology, air is comprehensively purified.
An air cleaning unit based on membrane separation technique and water washing cleaning, comprises the housing with air inlet and air outlet, in described housing, is provided with hollow fiber film assembly, and hollow fiber film assembly comprises:
Putamina, water is equipped with in inside, and top has air outlet, and this air outlet is communicated with described air outlet;
Hollow-fibre membrane tube bank, is immersed in the water in described putamina, many hollow fiber film tubes, consists of, one end sealing of described hollow-fibre membrane tube bank, and the other end is communicated with described air inlet through putamina.
The technical solution adopted in the present invention is: by the emerging technology of chemical field---application of membrane separation technology is in air cleaning, adopt hollow-fibre membrane and water acting in conjunction, hollow-fibre membrane tube bank is immersed in water, air passes into hollow-fibre membrane tube bank from a side, air after hollow-fibre membrane tube bank separation is emerged from water with the form of bubble, airborne suspended particulate substance and the water-soluble gas pollutant of energy are removed, and realize the preliminary purification of air.
Preferably, be positioned at described housing, between described air outlet and air outlet, be provided with successively active carbon slab and ultraviolet lamp tube.Also there is the water-fast harmful substance of part and bacterium, virus etc. in the air after preliminary purification, active carbon slab and ultraviolet lamp tube can be removed water-fast harmful substance and bacterium, virus etc. successively, and air is purified completely.
Described hollow fiber film tube is hydrophobic hollow fiber film pipe, and water can not be entered in film pipe; Be preferably Kynoar (PVDF) hollow fiber film tube, polytetrafluoroethylene (PTFE) hollow fiber film tube or polyvinyl chloride (PVC) hollow fiber film tube.
Air inlet place is provided with blower fan, and blower fan, for the introducing of air, accelerates air and enters in housing, promotes air cleaning speed.
Preferably, the top of described putamina is also provided with water inlet, and bottom is provided with delivery port.In use for some time, the impurity in water and harmful substance increase water in putamina, can reduce the removal efficiency of the water-soluble gas pollutant of suspended particulate substance and energy, therefore, set into the mouth of a river and delivery port on putamina, are convenient to the replacing of water.
One end of described hollow-fibre membrane tube bank, by epoxy sealing, also adopts epoxy sealing between other end tube and tube and between pipe and described putamina.The two ends of hollow-fibre membrane tube bank all adopt epoxy sealing, so that air can only pass through by the fenestra from tube wall, and anti-sealing enters the leakage of water in hollow-fibre membrane tube bank and in putamina.
The present invention also provides a kind of air purification method based on membrane separation technique and water washing cleaning, air is introduced into hollow fiber film tube, and through the fenestra on hollow fiber film tube, hold back separated airborne suspended particulate substance and large molecular organic pollutants, then with the form of bubble, pass water layer, remove the water-soluble pollutant of energy in air, the air after being purified.
Further preferred, the air after described purification irradiates through active carbon slab absorption and ultraviolet lamp tube successively, the air after comprehensively being purified.
Principle of the present invention is: the mechanism that membrane separation technique purifies air is molecule screening and Michel Knuysen diffusion.According to molecule screening mechanism, after the different mixture of molecular size contacts with film, large molecule is held back, and little molecule is by duct, thereby realization is separated.After air contacts with hollow-fibre membrane, the small granular suspended matters of airborne solid and liquid is trapped, and the little molecule such as air can pass through.When membrane aperture is than the mean free path hour of gas molecule, the collision probability between gas molecule and hole wall is greater than intermolecular collision, and its separation principle is mainly followed Michel Knuysen diffusion theory.According to Michel Knuysen diffusion theory, the speed of the gas permeation fenestra corresponding thereto square root of molecular mass is inversely proportional to, and therefore airborne large molecular organic pollutants is because of the less realization separation of its seepage velocity.Air by membrane aperture after film outer surface in being immersed in water form a lot of minute bubbles, minute bubbles uphill process fully contacts with water, harmful substance soluble in water in air is removed.
Beneficial effect of the present invention:
The present invention is and water washing cleaning technology separated based on film mainly, and in conjunction with charcoal absorption and ultraviolet sterilization, realizes the comprehensive purification to air in enclosure space.Air is by after hollow-fibre membrane, and suspended particulate substance is trapped separated with large molecular organic pollutants; Air fully contacts with water with the form of bubble after by membrane aperture, in air, can be removed by water-soluble pollutant; The air of membrane module outlet passes through active carbon slab again, the gas pollutant in active carbon slab energy absorbed air, and can eliminate the unusual smell; The last microorgranic contaminants such as airborne virus, bacterium that kill under the irradiation of quartz burner.So far, the air in enclosure space is comprehensively purified.
Accompanying drawing explanation
Fig. 1 is the structural representation of air cleaning unit of the present invention;
Fig. 2 is the structural representation of hollow fiber film assembly;
Fig. 3 is the view in transverse section of Fig. 2.
In figure: 1, air inlet, 2, blower fan, 3, hollow fiber film assembly, 31, hollow-fibre membrane tube bank, 32, putamina, 33, air outlet, 34, epoxy resin, 35, water, 4, active carbon slab, 5, ultraviolet lamp tube, 6, air outlet, 7, housing.
The specific embodiment
As shown in Figure 1, a kind of air cleaning unit based on membrane separation technique and water washing cleaning, comprises hollow fiber film assembly 3, active carbon slab 4 and the ultraviolet lamp tube 5 of housing 7, water-filling.
One side of housing 7 bottoms is provided with air inlet 1, air inlet 1 place is provided with blower fan 2, blower fan 2 is introduced air in housing 7, the hollow fiber film assembly 3 of water-filling is communicated with blower fan 2, the top of hollow fiber film assembly 3 is with air outlet 33, discharge for air after preliminary purification, the top of housing 7 is provided with air outlet 6, between air outlet 33 and air outlet 6, be provided with successively active carbon slab 4, ultraviolet lamp tube 5, active carbon slab 4 is for the pollutant of absorbed air and remove the peculiar smell of air, and the irradiation of ultraviolet lamp tube can be killed the microorganisms such as airborne bacterium, virus.
As shown in Figure 2, the core component that the hollow fiber film assembly 3 of water-filling is air cleaning unit of the present invention, its view in transverse section is as shown in Figure 3.Hollow fiber film assembly 3 is mainly comprised of putamina 32 and hollow fiber film tube.Putamina 32 main bodys are cylindrical, and water is equipped with in inside, and the middle part of putamina 32 end faces is provided with air outlet 33, and the air after purification is discharged by air outlet 33.Many hollow fiber film tubes form hollow-fibre membrane tube bank 31, and be immersed in completely in the water 35 in putamina 32, one end of hollow-fibre membrane tube bank 31 is encapsulated in putamina 32 with epoxy resin 34, the other end of hollow-fibre membrane tube bank 31 is communicated with air inlet 1, and between one end of air inlet 1 and putamina 32, also by epoxy resin 34, seal, prevent from leaking.Air passes into hollow-fibre membrane tube bank 31 from air inlet 1, and air, from the saturating filmed passing tube of membrane aperture, passes from water with bubble form, then by air outlet 33, is discharged.
In the present embodiment, hollow-fibre membrane tube bank is comprised of many PVDF hollow fiber film tubes, and the top of putamina is also provided with water inlet, and bottom is provided with delivery port.Water enters in putamina by water inlet, when pollutant in water is more, the water with pollutant is discharged by delivery port, realizes the replacing of water in putamina.
The course of work of air cleaning unit of the present invention is as follows:
During concrete use, start blower fan 2, air enters the hollow fiber film assembly 3 of water-filling from air inlet 1, flow into respectively in each root hollow fiber film tube, airborne suspended particulate substance (comprising solid and liquid granule) is trapped, and macromolecular organic pollution is also because the difference of infiltration rate obtains separation; And micromolecular air can pass through membrane aperture, at film outer surface, form a lot of minute bubbles, there is very large contact area with the water 35 outside hollow-fibre membrane tube bank 31, air, through in the process of water layer, can be removed by water-soluble pollutant in air; Air, with the form of the bubble water surface of emerging, is discharged from the air outlet 33 of hollow fiber film assembly 3, continues to flow through to be positioned at the active carbon slab 4 of hollow fiber film assembly 3 tops, and active carbon slab 4 can the remaining gas pollutant of absorbed air, and removes the peculiar smell of air; Last under the irradiation of ultraviolet lamp tube 5, the microorganisms such as airborne bacterium, virus are killed, and by the air outlet 6 at housing 7 tops, are discharged the air after comprehensively being purified.
Claims (6)
1. the air cleaning unit based on membrane separation technique and water washing cleaning, comprises with the housing of air inlet and air outlet, it is characterized in that, in described housing, is provided with hollow fiber film assembly, and hollow fiber film assembly comprises:
Putamina, water is equipped with in inside, and top has air outlet, and this air outlet is communicated with described air outlet;
Hollow-fibre membrane tube bank, is immersed in the water in described putamina, many hollow fiber film tubes, consists of, one end sealing of described hollow-fibre membrane tube bank, and the other end is communicated with described air inlet through putamina.
2. the air cleaning unit based on membrane separation technique and water washing cleaning as claimed in claim 1, is characterized in that, is positioned at described housing, between the air outlet of described hollow fiber film assembly and air outlet, is provided with successively active carbon slab and ultraviolet lamp tube.
3. the air cleaning unit based on membrane separation technique and water washing cleaning as claimed in claim 1, is characterized in that, described hollow fiber film tube is hydrophobic hollow fiber film pipe.
4. the air cleaning unit based on membrane separation technique and water washing cleaning as claimed in claim 3, is characterized in that, described hollow fiber film tube is PVDF hollow fiber film tube, PTFE hollow fiber film tube or PVC hollow fiber film tube.
5. the air purification method based on membrane separation technique and water washing cleaning, it is characterized in that, air is introduced into hollow fiber film tube, and through the fenestra on hollow fiber film tube, hold back separated airborne suspended particulate substance and large molecular organic pollutants, then with the form of bubble, pass water layer, remove the water-soluble pollutant of energy in air, the air after being purified.
6. the air purification method based on membrane separation technique and water washing cleaning as claimed in claim 5, is characterized in that, the air after described purification irradiates through active carbon slab absorption and ultraviolet lamp tube successively, the air after comprehensively being purified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310542752.6A CN103591648B (en) | 2013-11-05 | 2013-11-05 | Based on air purification method and the device of membrane separation technique and water washing cleaning |
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| CN201310542752.6A CN103591648B (en) | 2013-11-05 | 2013-11-05 | Based on air purification method and the device of membrane separation technique and water washing cleaning |
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| CN103591648A true CN103591648A (en) | 2014-02-19 |
| CN103591648B CN103591648B (en) | 2016-01-20 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190167A (en) * | 2014-08-22 | 2014-12-10 | 华南理工大学 | Hydrophobic membrane assembly and carbon nano layer dual-filtering air purification method and device |
| CN104437006A (en) * | 2014-10-28 | 2015-03-25 | 南京大学 | Membrane absorption device and method for purifying bio-methane |
| CN105749739A (en) * | 2016-04-08 | 2016-07-13 | 东莞市技塑塑胶科技有限公司 | Mobile air conditioner purifier |
| CN105817092A (en) * | 2016-03-30 | 2016-08-03 | 天津工业大学 | Hollow fiber membrane type air purifier |
| KR20180135691A (en) * | 2017-06-13 | 2018-12-21 | 김정학 | Method for hollow fiber membrane making and Air cleaner combined with humidity controller by using hollow fiber membrane |
| CN110102153A (en) * | 2019-04-25 | 2019-08-09 | 成都同创紫气科技有限公司 | A kind of membrane type deodoriser and its component, system and deodorizing methods |
| CN114225669A (en) * | 2022-02-25 | 2022-03-25 | 中国华能集团清洁能源技术研究院有限公司 | Absorption tower |
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| JP2009207811A (en) * | 2008-03-06 | 2009-09-17 | Sanyo Electric Co Ltd | Air-cleaning module and air-cleaning device using the same |
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| JP2000084375A (en) * | 1998-09-08 | 2000-03-28 | Toray Ind Inc | Hollow fiber membrane module and treatment of water |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104190167A (en) * | 2014-08-22 | 2014-12-10 | 华南理工大学 | Hydrophobic membrane assembly and carbon nano layer dual-filtering air purification method and device |
| CN104437006A (en) * | 2014-10-28 | 2015-03-25 | 南京大学 | Membrane absorption device and method for purifying bio-methane |
| CN104437006B (en) * | 2014-10-28 | 2017-06-20 | 南京大学 | A kind of film absorption plant and method for purifying biological methane |
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| CN105749739A (en) * | 2016-04-08 | 2016-07-13 | 东莞市技塑塑胶科技有限公司 | Mobile air conditioner purifier |
| KR20180135691A (en) * | 2017-06-13 | 2018-12-21 | 김정학 | Method for hollow fiber membrane making and Air cleaner combined with humidity controller by using hollow fiber membrane |
| KR102059721B1 (en) * | 2017-06-13 | 2020-02-11 | 김정학 | Method for hollow fiber membrane making and Air cleaner combined with humidity controller by using hollow fiber membrane |
| CN110102153A (en) * | 2019-04-25 | 2019-08-09 | 成都同创紫气科技有限公司 | A kind of membrane type deodoriser and its component, system and deodorizing methods |
| CN114225669A (en) * | 2022-02-25 | 2022-03-25 | 中国华能集团清洁能源技术研究院有限公司 | Absorption tower |
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| CN103591648B (en) | 2016-01-20 |
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Granted publication date: 20160120 Termination date: 20181105 |