CN1451917A - Indoor air purifying method and device - Google Patents
Indoor air purifying method and device Download PDFInfo
- 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
- Authority
- CN
- China
- Prior art keywords
- gas channel
- screen pack
- foamed ceramics
- micronic dust
- ultraviolet lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000000428 dust Substances 0.000 claims abstract description 39
- 239000000919 ceramic Substances 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000001699 photocatalysis Effects 0.000 claims abstract description 16
- 241000700605 Viruses Species 0.000 claims abstract description 11
- 238000007146 photocatalysis Methods 0.000 claims abstract description 10
- 241000894006 Bacteria Species 0.000 claims abstract description 7
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 7
- 231100000719 pollutant Toxicity 0.000 claims abstract description 7
- 230000003197 catalytic Effects 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 9
- 230000035943 smell Effects 0.000 claims description 7
- 230000001954 sterilising Effects 0.000 claims description 7
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 6
- 102000004190 Enzymes Human genes 0.000 claims description 4
- 108090000790 Enzymes Proteins 0.000 claims description 4
- 238000009298 carbon filtering Methods 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 230000001717 pathogenic Effects 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 10
- 239000011941 photocatalyst Substances 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 5
- 235000010215 titanium dioxide Nutrition 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 239000006260 foam Substances 0.000 abstract 1
- 230000004936 stimulating Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000004887 air purification Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000001580 bacterial Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000024881 catalytic activity Effects 0.000 description 2
- 230000000249 desinfective Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000000505 pernicious Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000002000 scavenging Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 210000003660 Reticulum Anatomy 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910001884 aluminium oxide Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000003115 biocidal Effects 0.000 description 1
- 230000001488 breeding Effects 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000001877 deodorizing Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001473 noxious Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N o-xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical class [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 pollen Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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
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.
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)
| Publication Number | Publication Date |
|---|---|
| CN1451917A true CN1451917A (en) | 2003-10-29 |
| CN1212494C CN1212494C (en) | 2005-07-27 |
Family
ID=29222893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03126563 Expired - Fee Related CN1212494C (en) | 2003-05-15 | 2003-05-15 | Indoor air purifying method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212494C (en) |
Cited By (12)
| 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 |
-
2003
- 2003-05-15 CN CN 03126563 patent/CN1212494C/en not_active Expired - Fee Related
Cited By (15)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1212494C (en) | 2005-07-27 |
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Owner name: GUANGDONG XUELAITE PHOTOELECTRIC TECHNOLOGY CO., Free format text: FORMER OWNER: HUAXING PHOTOELECTRIC INDUSTRIAL CO., LTD., NANHAI CITY |
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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. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050727 Termination date: 20200515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |