CN100467070C - Multiple air purifier based on photocatalysis principle - Google Patents
Multiple air purifier based on photocatalysis principle Download PDFInfo
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- CN100467070C CN100467070C CNB2006101709788A CN200610170978A CN100467070C CN 100467070 C CN100467070 C CN 100467070C CN B2006101709788 A CNB2006101709788 A CN B2006101709788A CN 200610170978 A CN200610170978 A CN 200610170978A CN 100467070 C CN100467070 C CN 100467070C
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Abstract
The invention relates to an air purifier, based on optical catalysis theory, wherein it is formed by conductive material with nanometer optical catalyst, conductive material/evaporator, constant-voltage device, ultraviolet lamp, and fan which are mounted in frame; the frame has air inlet and outlet; the constant-voltage device between conductive material with nanometer optical catalyst and conductive material/evaporator; the ultraviolet lamp is mounted at one side of conductive material with nanometer optical catalyst; or the air inlet is mounted with static dust collector of filter mesh. The invention uses static dust collection, ultraviolet disinfection and degradation of nanometer optical catalyst, to obtain better purification effect. The invention can be used independently or combined with refrigerator, etc.
Description
One, technical field
The present invention relates to air cleaner, especially a kind of multiple air purifier based on photocatalysis principle.
Two, background technology
Because the extensive use of a large amount of decorations, finishing material and furniture, the room air that caused harmful gas severe contaminations such as formaldehyde, benzene, ammonia.Simultaneously also can produce a large amount of organic gas in daily life, and accumulation gradually.China announces formally and begins to carry out the IAQ (indoor air quality) standard that on March 1st, 2003 especially after the SARS epidemic situation took place, IAQ (indoor air quality) came into one's own all the more; Problems such as the abnormal flavour in the refrigerator, stink, musty, antibacterial are outstanding day by day, bring very big inconvenience for people's life.This just requires refrigerator to have sterilization preferably, deodorization, fresh-keeping function, to satisfy the consumption demand that consumer's material life improves day by day.So the invention air cleaner, the environmental-protecting performance of optimization air-conditioning, refrigerator, significant for the quality of life of improving people.
Photocatalysis method is a kind of as high-level oxidation technology, is to utilize the photoproduction strong oxidizer that the organic pollution exhaustive oxidation is H
2O, CO
2Deng micromolecule, this method can be handled multiple pollutant, and is applied widely, and particularly the Organic substance to difficult degradation has good oxygenolysis.Light-catalyzed reaction also has the reaction condition gentleness in addition, and consersion unit is simple, non-secondary pollution, and easy operating control, characteristics such as operating cost is low are a kind of very promising pollution control technology.
At present, the patented technology that has some in air cleaning, air-conditioning and refrigerator, to use about the Nano semiconductor photocatalyst, as the disclosed application number 02135187.2 of China Intellectual Property Office, publication number CN1467024A, the patent of invention name is called " containing the carrier of nano-titanium dioxide film and the application in air-conditioning ", and this technology is a nano-TiO
2The preparation of colloidal sol and the porous ceramics that soaked in colloidal sol or glass fibre or glass wool cloth through 500 ℃ of-600 ℃ of heat treatments, obtain nano-TiO
2Membrane carrier.The advantage of this invention is: the carrier that obtains is durable in use, the specific surface area height; This patent has added ferric nitrate when the preparation thin film, improved photocatalysis efficiency.
Patent No. ZL 200520068539.7, Granted publication CN2777406Y, utility model patent, name is called " a kind of domestic air conditioner with air purification function ", this patent is that the return air oral-lateral at indoor set is provided with drainage screen, blower fan, vaporizer are installed in indoor set, nano-TiO is installed in the air channel
2Light catalytic purifying filter, TiO
2Cold catalysis net.Simultaneously off-premises station has also been done simple improvement.The advantage of this patent is: nano-TiO
2The light catalytic purifying filter in time decomposes airborne harmful gas; And the cold catalytic purification net of nanometer guarantees that further antibacterial is killed, organic gas is decomposed.
Patent No. ZL200320113156.8, the utility model patent of Granted publication CN2660372Y, name is called " a kind of disinfection air conditioner ", is that the air-conditioning internal air passageway is provided with the ozone uviol lamp, scribbles TiO
2Photocatalysis catalyst net.The advantage of this patent is: by methods such as ultraviolet-sterilization, ozone sterilization, photo-catalytic sterilizations, make that sterilization is more thorough.Photocatalyst can be controlled the content of ozone simultaneously.
Patent No. ZL200420084401.1, the utility model patent of Granted publication CN2723887Y, name is called " improved device of air conditioner filter screen ", is spraying nanometer light catalyst TiO on filter screen
2Combining nano silvery is equipped with synthetic nano composite photo catalyst silver (TiO
2Ag).The advantage of this patent is: simple in structure, easy to operate, and because the self-cleaning action of nanometer film makes prolong service life.
Patent No. ZL 200320131728.8, the utility model patent of Granted publication CN2680341Y, name is called " the nanometer photo-catalytic sterilizing device of air conditioning for automobiles air outlet special use ", and this device comprises that a surface is coated with the housing seat of Nano titanium dioxide, a case lid, a nano photo-catalytic fluorescent tube, two light seats, the two pairs of Hubei Province folders and an attaching plug.Its advantage is: whole is in light weight, and volume is little, and is simple in structure, easy and convenient to handle, practical safe ready.
Application number 200610034975.1, the patent of invention of publication number CN1865790A, name is called " a kind of biochemical film that is used for air-conditioner ", be heat exchanger or the drainage screen biochemical film water colloidal sol spraying film forming that configures with air-conditioner, thereby form the molecular link between silicon and the carbon and form biochemical film with this polymerization silver, titanium, manganese, copper, zinc isoreactivity element, can seizure and the function of resolving harmful gas and kill virus.The advantage of this patent: simple and practical, produce simple and easy to do.Biochemical film is a kind of super-strengthening catalyst, and itself does not lose, and is permanently effective.The shortcoming of this invention is: biochemical film is easily poisoned, and degradation efficiency is low.
Application number 200410010040.0, publication number CN1648568A, the patent of invention name is called " a kind of photocatalyst anionic sterilization refrigerator ", and it is that the comprehensive sterilizing unit that can produce ozone, hydroxy and anion is installed in refrigerator, is coated with TiO in the box body of integration unit
2Neutral liquid with the piezoquartz tourmaline can produce anion.Its advantage is: ozone sterilization, anionic sterilization, hydroxy sterilization are combined, more effectively kill bacteria.The shortcoming of its existence is at TiO
2After having adsorbed Organic substance, its ability that produces anion will reduce, and causes degradation effect to reduce.
Application number 200310100485.3, the patent of invention of publication number CN 1609523A, name is called " high adsorption multifunctional air purifier ", and depurator of the present invention is made up of housing, electronic dust-collecting device, photocatalytic degradation device and negative ion generating device four parts.Its advantage is that air can obviously improve air quality through multiple purifying.
Though above patented technology has the place of its uniqueness, but also there is following shortcoming: the one, nano semiconductor material is when being subjected to the rayed of the big crack therebetween of energy energy, produced photohole and electronics, but hole and electronics are very easily compound, cause degradation efficiency very low.That have even do not have rayed, degradation efficiency can be lower like this; The 2nd, drainage screen can not filter out the less grit of granule, and these grits will be fallen on the nanometer film, have reduced degradation efficiency, have reduced the service life of nanometer film; The 3rd, for pollutant extremely low in the air, the perhaps intermediate product of pollutant, the degradation speed of nano photo-catalytic is very slow, so these pollutant are not also degraded fully, will be discharged into indoor.
Three, summary of the invention
At above problem, the objective of the invention is the advantage of comprehensive various cleaning principles, overcome the shortcoming of existing purifier, invent a kind of air cleaner with electrostatic precipitation, ultraviolet-sterilization, Nano semiconductor photocatalytic Degradation.The present invention is by perfect performance, and multiple purifying can thoroughly improve air quality.
Technical scheme of the present invention is: constituted and be installed in the housing by the conductive material that adheres to nano-photocatalyst material, conductive material or vaporizer, uviol lamp, constant voltage device, blower fan, air inlet and air outlet are arranged on the housing; Constant voltage device is connected between the conductive material and conductive material or vaporizer that adheres to nano-photocatalyst material; Uviol lamp is installed in conductive material one side of adhering to nano-photocatalyst material; Or at air inlet installation electrostatic precipitator or installation filter screen.
The conductive material that adheres to nano-photocatalyst material comprises activated carbon felt, steel mesh, copper mesh, titanium net, electro-conductive glass etc.; Conductive material usefulness ordinary metallic material such as iron plate, steel plate, copper coin, metal gauze etc.
The conductive material that adheres to nano-photocatalyst material of poor rigidity, bad during installation owing to polarization, the most handy stent support.
The employed conductive material that adheres to nano-photocatalyst material of nano-photo catalytic reaction unit can be a single or multiple lift.
In the device of the present invention electrostatic precipitator, filter screen can be installed, it is many to be mainly used in airborne granule, perhaps requires to adhere to the lower situation of replacing frequency ratio of the conductive material of nano-photocatalyst material.Also electrostatic precipitator, filter screen can be installed, it is fewer to be mainly used in airborne granule, and the replacing frequency ratio of conductive material that perhaps requires to adhere to nano-photocatalyst material is higher, or the situation of electrostatic precipitator or filter screen is not installed in specific (special) requirements.
Electrostatic precipitator also is made up of for dust collecting electrode and prickle negative electrode high-voltage generator, conducting metal anode, and polar plate spacing is from being 1-4cm, and the prickle negative electrode is positioned in the middle of the two-plate.
The added bias voltage of the present invention inspires ultraviolet on catalysis material hole-electron pair is able to effective separation, thereby improves catalytic degradation efficient.Because nano-photocatalyst material is in the skin of conductive material, make ultraviolet light not block under the situation simultaneously, directly act on the catalysis material, can make full use of the photocatalysis of ultraviolet light photocatalysis agent.
The present invention can obtain good air purification effect by multiple purifyings such as electrostatic precipitation, ultraviolet-sterilization, nano-photocatalyst material catalytic degradations.This device can be used as independently air cleaning facility application, also can be used as the accessory module of plurality of devices such as air-conditioning, refrigerator, is that this equipment adds air-cleaning function.
Four, description of drawings
Fig. 1, Fig. 2 are structural representation of the present invention.
Reference numeral:
1, nano-photo catalytic device 1-1, constant voltage equipment 1-2, uviol lamp 1-3, the conductive material 1-4 that adheres to catalysis material, support 1-5, conductive material or vaporizer 2, housing 3, blower fan 4, air inlet 5, electrostatic precipitator 6, filter screen 7, air outlet
Five, the specific embodiment
It is as follows to be described in detail implementation process of the present invention in conjunction with the accompanying drawings:
Embodiment 1:
As shown in Figure 1:
The present invention is applied on the air conditioner or on the refrigerator.Conductive material activated carbon felt 1-3, the uviol lamp 1-2, conductive material 1-5, the blower fan 3 that adhere to catalysis material that are installed on the support 1-4 are installed in the nano-photo catalytic device case 2, air inlet 4 and air outlet 7 are arranged on the housing 2, and constant voltage device 1-1 is connected between the activated carbon felt 1-3 and conductive material 1-5 that adheres to catalysis material; Uviol lamp 1-2 is installed in activated carbon felt 1-3 one side of adhering to nano-photocatalyst material; Because the vaporizer in the air-conditioning is a kind of conductive material, so when this device is used, can replace conductive material 1-5 by vaporizer in air-conditioning, when being used on the refrigerator, vaporizer is not easy to connect, and conductive material 1-5 can be with sheet metal or copper mesh; Outer dress electrostatic precipitator 5, filter screen 6.
This device is installed in the cold room of the indoor set air inlet of air-conditioning or refrigerator.Uviol lamp 1-2, constant voltage equipment 1-1 all are in open mode.Start blower fan 3, make its rotation, air pollution enters this device by air inlet 4, through filter screen 6, removes the bigger dust of degranulation.Enter into electrostatic precipitator 5, its built-in high-voltage generator produces high direct voltage, adds the static of 3000-5000V between anode and negative electrode.The electric field that adds between two electrodes makes near the air molecule ionization the electrode, becomes anion and cation.Cation is drawn onto negative pole and obtains electronics, becomes molecule again.Anion runs into airborne dust in the process of positive polar motion, makes dust electronegative, is adsorbed onto on the positive pole, has reached the purpose that purifies air.And utilize high voltage electrostatic technique general microorganism killing wherein, and non-secondary pollution, can not only remove airborne bulky grain, and can catch in the air less than 0.1 micron or littler granule.The pole plate of electrostatic precipitator can be regular cleaning, make the pole plate dust catching efficiency new again.From the air that electrostatic precipitator comes out, enter into nano-photo catalytic device 1.Uviol lamp 1-2 is installed in conductive material one side of adhering to nano-photocatalyst material, makes it can shine the nano-photocatalyst material that adheres on the conductive material.The effect of uviol lamp 1-2 is directly to sterilize on the one hand, excitation nano catalysis material on the other hand, obtain hole and electronics, utilize the strong oxidizing property in hole, the organic pollution that oxidable airborne semiconductor grain surface is adsorbed and other reductive pollutants make it be degraded to harmless small-molecule substance.Bias voltage is to be added between the conductive material 1-3 and conductive material or vaporizer 1-5 that adheres to catalysis material, and the hole-electron pair that ultraviolet is inspired on catalysis material is able to effective separation, thereby improves catalytic degradation efficient.Gas continues by being installed in the activated carbon felt 1-3 that adheres to catalysis material on the support 1-4, because nano-photocatalyst material is in the skin of conductive material, make ultraviolet light not block under the situation, directly act on the catalysis material, can make full use of the photocatalysis of ultraviolet light photocatalysis agent.The conductive material that adheres to catalysis material derives the electronics that is inspired by ultraviolet because it has electric conductivity on catalysis material, make the hole effectively separate with electronics.Activated carbon felt not only has electric conductivity, can also effectively adsorb pollutant, the pollutant of extremely low concentration in the air are carried out adsorption cleaning and surface enrichment fast, accelerate the speed of photocatalytic degradation reaction, suppress the release of intermediate product, improved the efficient of pollutant complete oxidations.While to the catalysis material surface migration, is realized the in-situ regeneration of activated carbon felt by the activated carbon felt adsorbed contaminants, increases the service life.Therefore the best applied activated carbon fabric of conductive material that adheres to catalysis material.The conductive material 1-3 that adheres to catalysis material can be a single or multiple lift, and the conductive material that multilamellar is adhered to catalysis material makes in the air harmful substance handle more thoroughly.The conductive material 1-3 and the housing 2 that adhere to catalysis material can be tightly connected.Flow velocity at air is less, and when the perhaps used conductive material rigidity of adhering to catalysis material was strong, perhaps under the situation of specific (special) requirements, the conductive material that adheres to catalysis material can not use support 1-4 to support.Air pollution through adhering to catalysis material activated carbon felt 1-3 absorption, the degraded after, the fresh air that purified is discharged in the cold room of indoor or refrigerator by air outlet 7.
Embodiment 2:
As shown in Figure 2, the present invention is applied on air conditioner or the refrigerator,
Conductive material activated carbon felt 1-3, the uviol lamp 1-2, conductive material 1-5, the blower fan 3 that adhere to catalysis material that are installed on the support 1-4 are installed in the nano-photo catalytic device case 2, air inlet 4 and air outlet 7 are arranged on the housing 2; Because the vaporizer in the air-conditioning is a kind of conductive material, so when this device is used, can replace conductive material 1-5 by vaporizer in air-conditioning, when being used on the refrigerator, vaporizer is not easy to connect, and conductive material 1-5 can be with sheet metal or copper mesh; Outer dress electrostatic precipitator 5, filter screen 6.
This device is installed in the cold room of the indoor set air inlet of air-conditioning or refrigerator.Start blower fan 3, make its rotation, air pollution is entered in the air-conditioning by air inlet 4.Through filter screen 6, enter into electrostatic precipitator 5, then enter into nano-photo catalytic device 1, air pollution arrives the conductive material 1-3 that adheres to catalysis material by conductive material or vaporizer 1-5, by its absorption, degraded.The conductive material 1-3 and the housing 2 that adhere to catalysis material can be tightly connected.The fresh air that purified is discharged in the cold room of indoor or refrigerator by air outlet 7.
Difference is that the position of each building block in the nano-photo catalytic device is different among Fig. 1, Fig. 2, and the air purification effect that reaches at last is the same.
Embodiment 3:
The present invention's conduct is air cleaner independently.
Be installed in the conductive material activated carbon felt that adheres to catalysis material on the support 1-4 or copper mesh 1-3, uviol lamp 1-2, conductive material steel plate or electro-conductive glass 1-5, blower fan 3 is installed in the nano-photo catalytic device case 2, air inlet 4 and air outlet 7 are arranged on the housing 2, and constant voltage device 1-1 is connected between the activated carbon felt or copper mesh 1-3 and conductive material steel plate or electro-conductive glass 1-5 that adheres to catalysis material; Uviol lamp 1-2 is installed in the activated carbon felt or copper mesh 1-3 one side of adhering to nano-photocatalyst material; Constitute independently multiple air purifier based on photo-catalysis function.This device is fit to the granule in purifying air fewer, and the replacing frequency ratio of conductive material that perhaps requires to adhere to nano-photocatalyst material is higher, or specific (special) requirements is not installed under the situation of electrostatic precipitator or filter screen.
On the basis of above purifier, install electrostatic precipitator 5, filter screen 6 additional, constitute the multiple air purifier that independently has the filter sand dedusting function based on photo-catalysis function.Granule during this device is suitable for purifying air is many, perhaps requires to adhere under the lower situation of the replacing frequency ratio of conductive material of nano-photocatalyst material,
When the conductive material that adheres to catalysis material adopts steel mesh, copper mesh, electro-conductive glass,, the electronics that is inspired on catalysis material by ultraviolet is derived, make the hole effectively separate, can effectively purify air with electronics because it has electric conductivity.Owing to lack adsorption effect, be fit to Organic substance and pollute light purification occasion.
When nano-photocatalyst material was subjected to the rayed of the big crack therebetween of energy energy, the electronics on the mental retardation valence band (VB) was excited and transits to high energy conduction band (CB), forms electronegative electronics at conduction band, and stayed positively charged hole on valence band.Photohole has very high oxidation-reduction potential, and oxidable semiconductor grain surface is adsorbed electron donor.But the electronics of excited state and hole are also as easy as rolling off a log compound.The present invention is fixed to semiconductor grain on one conductive carrier, and applied voltage can improve the transmittance process of electric charge greatly, has prevented the compound of photo-generated carrier, has improved oxidation efficiency greatly.
Claims (3)
1, a kind of multiple air purifier based on photocatalysis principle, it is characterized by by the conductive material that adheres to nano-photocatalyst material, conductive material or vaporizer, constant voltage device, uviol lamp, blower fan constitutes and is installed in the housing, air inlet and air outlet are arranged on the housing, constant voltage device is connected between the conductive material and conductive material that adheres to nano-photocatalyst material, perhaps be connected between the conductive material and vaporizer that adheres to nano-photocatalyst material, uviol lamp is installed in a side of the conductive material that adheres to nano-photocatalyst material, electrostatic precipitator is installed or filter screen is installed at air inlet.
2,, it is characterized by the described conductive material that adheres to nano-photocatalyst material and comprise activated carbon felt or steel mesh or copper mesh or titanium net or electro-conductive glass according to claims 1 described a kind of multiple air purifier based on photocatalysis principle.
3, according to claims 1 or 2 described a kind of multiple air purifiers based on photocatalysis principle, being characterized as the employed conductive material that adheres to nano-photocatalyst material of described nano-photo catalytic reaction unit is single or multiple lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101709788A CN100467070C (en) | 2006-12-30 | 2006-12-30 | Multiple air purifier based on photocatalysis principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101709788A CN100467070C (en) | 2006-12-30 | 2006-12-30 | Multiple air purifier based on photocatalysis principle |
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| Publication Number | Publication Date |
|---|---|
| CN1994475A CN1994475A (en) | 2007-07-11 |
| CN100467070C true CN100467070C (en) | 2009-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101709788A Expired - Fee Related CN100467070C (en) | 2006-12-30 | 2006-12-30 | Multiple air purifier based on photocatalysis principle |
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| CN104296247B (en) * | 2014-10-31 | 2017-03-01 | 佛山市香莱诗香薰有限公司 | Air purifier for air conditioner |
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| CN1994475A (en) | 2007-07-11 |
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Owner name: WANG GUANGHUA Free format text: FORMER OWNER: SHANDONG HISENSE ENVIRONMENTAL PROTECTION CO., LTD. Effective date: 20100129 |
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Effective date of registration: 20100129 Address after: No. 185, mountain road, Lixia District, Shandong City, Ji'nan Province, China: 250014 Co-patentee after: Zhang Limin Patentee after: Wang Guanghua Co-patentee after: Chang Xiumei Co-patentee after: He Yumin Address before: No. 185, mountain road, Lixia District, Shandong City, Ji'nan Province, China: 250014 Patentee before: Shandong Hisense Commerce Co., Ltd. |
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Granted publication date: 20090311 Termination date: 20111230 |