CN1451917A - Indoor air purifying method and device - Google Patents

Indoor air purifying method and device Download PDF

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Publication number
CN1451917A
CN1451917A CN 03126563 CN03126563A CN1451917A CN 1451917 A CN1451917 A CN 1451917A CN 03126563 CN03126563 CN 03126563 CN 03126563 A CN03126563 A CN 03126563A CN 1451917 A CN1451917 A CN 1451917A
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CN
China
Prior art keywords
gas channel
screen pack
foamed ceramics
micronic dust
ultraviolet lamp
Prior art date
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Granted
Application number
CN 03126563
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Chinese (zh)
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CN1212494C (en
Inventor
唐建军
柴国生
李荣先
张明
彭坚
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Shenzhen Research Institute Tsinghua University
Cnlight Co Ltd
Original Assignee
NANHAI HUAXING PHOTOELECTRIC INDUSTRIAL Co Ltd
Shenzhen Research Institute Tsinghua University
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Application filed by NANHAI HUAXING PHOTOELECTRIC INDUSTRIAL Co Ltd, Shenzhen Research Institute Tsinghua University filed Critical NANHAI HUAXING PHOTOELECTRIC INDUSTRIAL Co Ltd
Priority to CN 03126563 priority Critical patent/CN1212494C/en
Publication of CN1451917A publication Critical patent/CN1451917A/en
Application granted granted Critical
Publication of CN1212494C publication Critical patent/CN1212494C/en
Expired - Fee Related legal-status Critical Current
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Abstract

A photocatalytic method and apparatus for cleaning indoor air is characterized by that in its airflow channel, a duster is first used to remove dust from air, the activated carbon is then used to remove odor from air, an ultraviolet lamp is then used to kill bacteria and viruses while as a stimulating light source of photocatalysis, and the nano TiO2 as photocatalyst carried on meshed foam ceramic is finally used to kill bacteria and viruses and degradate low-concentration chemical pollutants.

Description

A kind of purification method of room air and device
Technical field
The invention belongs to a kind of purification method of room air and adopt the indoor air-purification device of this method.
Background technology
The room air pollution situation of using owing to the aggravation of atmosphere pollution, indoor decoration and air-conditioner that causes of popularizing more and more causes people's attention at present, and indoor air cleaner is exactly the device that is used for improving IAQ.It is several that the air cleaning unit that uses both at home and abroad mainly contains simple mechanical filtering type, electrostatic, chemical (or physics) absorption type, anion formula, ultraviolet sterilization formula and photocatalysis formula etc. at present, the clarifier of preceding two kinds of forms is eliminated gradually, there is the easily saturated problem of sorbing material in the adsorption cleaning device, the anion formula it is generally acknowledged to have only the physical action of eliminating flue dust, then powerless to bacterial virus and chemical pollutant, the ultraviolet sterilization formula is powerless to organic matters such as pernicious gas smells.In recent years, photocatalysis technology is considered to rising indoor air purification technology, it can thoroughly be removed pernicious gas, smell and bacterial virus etc. by the method for photochemical catalytic oxidation, but it is as a kind of unit process, also there are certain limitation and deficiency, as the catalyst micropore is easily blocked, catalytic efficiency is lower, the easy deterioration of catalytic activity etc.There is the researcher to be used for air cleaning with photocatalysis oxidation technique and activated carbon fiber adsorption technology are integrated now, expectation realizes the in-situ regeneration of scavenging material, improve catalytic efficiency, but because ultraviolet light is difficult to shine the photocatalyst surface that is fixed in activated carbon fiber, do not have photocatalysis, so be difficult to reach the purpose of scavenging material in-situ regeneration.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of catalytic efficiency height, catalytic activity is good, the purification method of the room air of the employing photocatalysis technology of good purification and adopt the indoor air-purification device of this method.
The technical scheme that addresses the above problem is: the inventive method comprises following content:
1, at first removes airborne micronic dust in the gas channel front portion with dust arrester;
2, remove airborne peculiar smell with activated carbon;
3, with ultraviolet lamp killing pathogenic bacteria virus, utilize ultraviolet lamp to make excitation source simultaneously, kill airborne bacterium, virus with the nano TiO 2 photocatalysis method, degraded low concentration chemistry pollutant makes it innoxious;
It is characterized in that: the described technological means that purifies air with the nano-photo catalytic method is: the foamed ceramics that the solid reticulate structure is set on gas channel, immobilized on the foamed ceramics have a nano TiO 2 photochemical catalyst, and described ultraviolet lamp is arranged on the foamed ceramics sidepiece.
The said process dedusting is the first step, and the order of all the other processes can be exchanged, and preferred version is that the air through dedusting is carried out the activated carbon taste removal earlier, carries out light catalytic purifying again.
The structure of air cleaning unit of the present invention is (referring to implementing illustration): being provided with blower fan (7) in housing (8) is the gas channel of power source, the gas channel front portion is provided with dust arrester (1,2,3), be provided with activity carbon filtering device (4) and light catalytic purifying district in the gas channel at dust arrester rear portion, it is characterized in that: be provided with the immobilized foamed ceramics (6) that the solid reticulate structure of nano TiO 2 photochemical catalyst is arranged in the described light catalytic purifying district, the foamed ceramics sidepiece is provided with ultraviolet lamp (5).
The course of work of the inventive method and device is: moving air is removed airborne micronic dust through dust arrester earlier, remove the air of micronic dust and through activity carbon filtering device the time, can remove airborne smoke, musty, peculiar smell such as oil smoke, when flowing through the foamed ceramics of solid reticulate structure, be set at the ultraviolet lamp killing pathogenic bacteria virus of foamed ceramics sidepiece on the one hand, be carried out nanometer photocatalytic purification on the one hand: ultraviolet lamp shines photocatalyst surface immobilized on the foamed ceramics, but exciting light catalytic nanoparticles, generation has the free radical activity material of extremely strong oxidability, wide spectrum kill virus germ also can be resolved into carbon dioxide with airborne noxious pollutant oxidation, the material that water etc. are nonpoisonous and tasteless.
The present invention integrates multiple air purification method, when using ultraviolet lamp disinfection, utilize it to make excitation source simultaneously air is carried out nanometer photocatalytic purification, and the foamed ceramics of employing solid reticulate structure is as the carrier of nano-photocatalyst, it is big that foamed ceramics has porosity, the aperture is big, windage is little, the characteristics that specific area is big, make ultraviolet light be easy to shine immobilized photocatalyst surface thereon, and can prolong the length of carrier gas stream passage and the time of contact of pollutant and nano-photocatalyst greatly, strengthen photocatalysis efficiency, prolong the useful life of catalyst, improve the degraded chemical pollutant, the efficient of broad-spectrum disinfecting and deodorizing.And foamed ceramics rough surface, the photochemical catalyst nano particle is strong adhesion thereon, immobilizedly on the foamed ceramics of solid reticulate structure, improved activity of such catalysts thereby photochemical catalyst is stablized at a lower temperature, so the present invention can obtain good air purification effect.
Description of drawings
Fig. 1, the inventive method method embodiment schematic flow sheet
Fig. 2, apparatus of the present invention embodiment disassembled form structural representation
Fig. 3, apparatus of the present invention embodiment assembled state cross-sectional view
1-is slightly imitated and is imitated the efficient micronic dust screen pack of micronic dust screen pack 3-4-active carbon filter net among the micronic dust screen pack 2-
5-ultraviolet lamp 6-foamed ceramics 7-blower fan 8-housing 9-bonnet 10-motor
Specific embodiments
The inventive method embodiment (Fig. 1)
It is the gas channel of power source that this example is provided with blower fan 7, is provided with dedusting area A, active carbon filtration district B, light catalytic purifying district C successively from the anterior inlet of gas channel to rear portion Way out;
Be provided with thick effect micronic dust screen pack 1, middle effect micronic dust screen pack 2, efficient micronic dust screen pack 3 from front to back successively at dedusting area A;
The thick micronic dust screen pack of imitating: be general nylon screen pack, filtering accuracy is 5~10 μ m, mainly filters bulky grain dust, to prolong the service life of high efficiency particulate air;
The middle micronic dust screen pack of imitating: be electrostatic fibrous filter web, filtering accuracy 0.5~1 μ m;
Efficient micronic dust screen pack: for to 0.3 μ m dust filter efficiency greater than 99.9% enzyme and sterilizing HEPA, be used to filter granule dust, pollen, soot etc.
Be provided with active carbon filter net in the active carbon filtration district B, in order to remove peculiar smell such as smoke, musty and greasy smell.
In light catalytic purifying district C, be provided with the foamed ceramics 6 of the solid reticulate structure made from aluminium oxide, immobilized on the foamed ceramics have a TiO2 photocatalytic nanometer particle, ultraviolet lamp 5 is arranged on the foamed ceramics front side, ultraviolet lamp is to make with the high purity quartz material that contains 2 ‰ zirconium dioxides, can the output characteristic wavelength be the high-intensity ultraviolet of 200nm~400nm.
Above-mentioned foamed ceramics 6 also can adopt inorganic material foaming such as silica, carborundum or zirconia to make.
This example with the method that TiO2 photocatalytic nanometer particle is fixed in foamed ceramics is: earlier with ultrasonic method with high activity TiO2 nano-photocatalyst stable dispersion in the aqueous solution, then this dispersion liquid is sprayed in the foamed ceramics surface, can make nano-photocatalyst under the lower temperature of room temperature~400 ℃ with higher activity stabilized immobilized in foamed ceramics solid reticulate surface.
The 3-stage dust-removal net that this example is provided with not only can high-effective dust-removing, and enzyme and sterilizing HEPA wherein also has antibiotic sterilizing function, becomes the hotbed of bacterial virus breeding to prevent filter screen.
This example is arranged on the active carbon filtration district before the light catalytic purifying district, helps protecting nano-photocatalyst, prolongs its service life, prevents its performance premature deterioration.
Apparatus of the present invention embodiment (Fig. 2 Fig. 3)
This example is the device made from the foregoing description method: being provided with blower fan 7 in housing 8 is the gas channel of power source, from the gas channel inlet beginning, be provided with thick effect micronic dust screen pack 1 successively, the middle micronic dust screen pack 2 of imitating, efficient micronic dust screen pack 3, active carbon filter net 4, blower fan 7, the gas channel that the light catalytic purifying district is set after the blower fan 7 is an angle of 90 degrees with the anterior gas channel that dust arrester is set, in the gas channel at rear portion, be provided with ultraviolet lamp 5 successively, the immobilized foamed ceramics 6 that the solid reticulate structure of TiO2 photocatalytic nanometer particle is arranged, the impeller of blower fan 7 is contained in and follows active carbon filter net 4 position afterwards closely, the motor 10 of impeller is contained on the bonnet 9, gas channel promptly upwards turns an angle of 90 degrees after blower fan 7 impellers, the light catalytic purifying district is arranged in the gas channel that upwards turns 90 degree.This structure can prevent ultraviolet direct projection micronic dust screen pack and the screen pack premature aging that causes.
The front side and/or the rear side that ultraviolet lamp are arranged on foamed ceramics can make ultraviolet ray shine the foamed ceramics surface as much as possible.
This device detects under the photocatalysis test temperature is 30 ℃, the condition of humidity 55%, during start in the air formaldehyde and xylene content be respectively 95.29mg/m 3And 506.53mg/m 3, start shooting and reduce to 2.36mg/m respectively after three hours 3And 0.38mg/m 3, clean-up effect is remarkable.

Claims (6)

1, a kind of purification method of room air comprises following content:
1-1, at first remove airborne micronic dust with dust arrester in the gas channel front portion;
1-2, remove airborne peculiar smell with activated carbon;
1-3, usefulness ultraviolet lamp killing pathogenic bacteria virus utilize ultraviolet lamp to make excitation source simultaneously, kill airborne bacterium, virus with the nano TiO 2 photocatalysis method, and degraded low concentration chemistry pollutant makes it innoxious;
It is characterized in that: the described technological means that purifies air with the nano-photo catalytic method is: the foamed ceramics that the solid reticulate structure is set on gas channel, immobilized on the foamed ceramics have a nano TiO 2 photochemical catalyst, and described ultraviolet lamp is arranged on the foamed ceramics sidepiece.
2, the purification method of room air according to claim 1 is characterized in that: the air through dedusting is carried out the activated carbon taste removal earlier, carry out light catalytic purifying again.
3, the purification method of room air according to claim 1 and 2 is characterized in that: described to remove airborne micronic dust with dust arrester be to be that thick effect micronic dust screen pack, the filtering accuracy of 5~10 μ m is that middle effect micronic dust screen pack, the efficient micronic dust screen pack of enzyme and sterilizing HEPA of 0.5~1 μ m filters air with filtering accuracy successively.
4, a kind of purifier of room air, being provided with blower fan (7) in housing (8) is the gas channel of power source, the gas channel front portion is provided with dust arrester (1,2,3), be provided with activity carbon filtering device (4) and light catalytic purifying district in the gas channel at dust arrester rear portion, it is characterized in that: be provided with the immobilized foamed ceramics (6) that the solid reticulate structure of nano TiO 2 photochemical catalyst is arranged in the described light catalytic purifying district, the foamed ceramics sidepiece is provided with ultraviolet lamp (5).
5, the purifier of room air according to claim 4, it is characterized in that: described dust arrester is: from gas channel inlet beginning, the thick effect micronic dust screen pack (1), the filtering accuracy that are provided with filtering accuracy successively and are 5~10 μ m are the efficient micronic dust screen pack of middle effect micronic dust screen pack (2), enzyme and sterilizing HEPA (3) of 0.5~1 μ m.
6, according to the purifier of claim 4 or 5 described room airs, it is characterized in that: the gas channel that the light catalytic purifying district is set is an angle of 90 degrees with the gas channel that dust arrester is set.
CN 03126563 2003-05-15 2003-05-15 Indoor air purifying method and device Expired - Fee Related CN1212494C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03126563 CN1212494C (en) 2003-05-15 2003-05-15 Indoor air purifying method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03126563 CN1212494C (en) 2003-05-15 2003-05-15 Indoor air purifying method and device

Publications (2)

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CN1451917A true CN1451917A (en) 2003-10-29
CN1212494C CN1212494C (en) 2005-07-27

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1995089B (en) * 2006-12-22 2010-08-11 淮安康维化工科技有限公司 Photo-catalytic antibiotic sponge and its pillow and mat product
CN102434924A (en) * 2011-10-27 2012-05-02 沈阳建筑大学 Improvement method of air-conditioner purifier
CN102961964A (en) * 2011-08-31 2013-03-13 奥雷克控股公司 Photo-catalytic air purifier system with illuminated angled substrate
CN103084049A (en) * 2012-11-23 2013-05-08 华南再生资源(中山)有限公司 Plasma photocatalyst anion air deodorization and sterilization device
CN103134117A (en) * 2013-03-04 2013-06-05 苏章群 Conductive nano TiO2 composite photocatalytic air purifying device
CN103216889A (en) * 2013-05-08 2013-07-24 符逊红 Domestic air cleaner
CN104109971A (en) * 2013-04-22 2014-10-22 海尔集团公司 Clothes drying machine with sterilizing and deodorizing device
CN104109970A (en) * 2013-04-22 2014-10-22 海尔集团公司 Clothes drying machine with sterilization and deodorizing device
CN105087363A (en) * 2014-05-13 2015-11-25 天津市亚飞过滤科技有限公司 Edible fungus filter system
CN105972701A (en) * 2016-07-01 2016-09-28 安阳工学院 Industrial air cleaning device
CN106918085A (en) * 2017-03-10 2017-07-04 重庆交通大学 Novel air cleaning system
CN110454838A (en) * 2019-09-03 2019-11-15 安徽国茂机电设备有限公司 A kind of multistage purification oil smoke all-in-one machine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1995089B (en) * 2006-12-22 2010-08-11 淮安康维化工科技有限公司 Photo-catalytic antibiotic sponge and its pillow and mat product
CN102961964A (en) * 2011-08-31 2013-03-13 奥雷克控股公司 Photo-catalytic air purifier system with illuminated angled substrate
CN102434924A (en) * 2011-10-27 2012-05-02 沈阳建筑大学 Improvement method of air-conditioner purifier
CN103084049A (en) * 2012-11-23 2013-05-08 华南再生资源(中山)有限公司 Plasma photocatalyst anion air deodorization and sterilization device
CN103134117B (en) * 2013-03-04 2016-02-24 深圳市佳能宝节能环保科技有限公司 A kind of electrical-conductive nanometer TiO 2composite photocatalyst air cleaning unit
CN103134117A (en) * 2013-03-04 2013-06-05 苏章群 Conductive nano TiO2 composite photocatalytic air purifying device
CN104109971A (en) * 2013-04-22 2014-10-22 海尔集团公司 Clothes drying machine with sterilizing and deodorizing device
CN104109970A (en) * 2013-04-22 2014-10-22 海尔集团公司 Clothes drying machine with sterilization and deodorizing device
CN104109971B (en) * 2013-04-22 2018-02-23 青岛海尔洗衣机有限公司 A kind of dryer that sterilizing deodoring device is set
CN104109970B (en) * 2013-04-22 2018-08-07 青岛海尔洗衣机有限公司 A kind of dryer of setting sterilizing deodoring device
CN103216889A (en) * 2013-05-08 2013-07-24 符逊红 Domestic air cleaner
CN105087363A (en) * 2014-05-13 2015-11-25 天津市亚飞过滤科技有限公司 Edible fungus filter system
CN105972701A (en) * 2016-07-01 2016-09-28 安阳工学院 Industrial air cleaning device
CN106918085A (en) * 2017-03-10 2017-07-04 重庆交通大学 Novel air cleaning system
CN110454838A (en) * 2019-09-03 2019-11-15 安徽国茂机电设备有限公司 A kind of multistage purification oil smoke all-in-one machine

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Owner name: GUANGDONG XUELAITE PHOTOELECTRIC TECHNOLOGY CO.,

Free format text: FORMER OWNER: HUAXING PHOTOELECTRIC INDUSTRIAL CO., LTD., NANHAI CITY

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20050722

Address after: 528225 A District, Shishan science and Technology Industrial Zone, Nanhai District, Guangdong, Foshan

Co-patentee after: Shenzhen Institute of Stinghua University

Patentee after: Bright Star Light & Electricity Industry Co., Ltd.

Address before: 528225, Nanhai District, Guangdong City, Shishan Foshan science and Technology Industrial Park A District Nanhai City Huaxing photoelectric industry Co., Ltd.

Co-patentee before: Shenzhen Institute of Stinghua University

Patentee before: Nanhai Huaxing Photoelectric Industrial Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050727

Termination date: 20200515

CF01 Termination of patent right due to non-payment of annual fee