CN1470809A - Method and apparatus for purifying indoor air - Google Patents
Method and apparatus for purifying indoor air Download PDFInfo
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- CN1470809A CN1470809A CNA021256799A CN02125679A CN1470809A CN 1470809 A CN1470809 A CN 1470809A CN A021256799 A CNA021256799 A CN A021256799A CN 02125679 A CN02125679 A CN 02125679A CN 1470809 A CN1470809 A CN 1470809A
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Abstract
Air containing harmful gas in room becomes clean air after catalytic decomposition reaction under high temperature in the invented device. The device comprises the cabinet and the mechanism for inducing air. The air inlet and air outlet are setup on the cabinet. A air duct is formed between the air inlet and the air outlet. The said mechanism and high temperature catalytic reaction device are installed in the air duct. The invented device decomposes harmful gas: benzene, formaldehyde, ammonia and carbon monoxide etc. into innoxious substance thoroughly. Moreover, the device gives out warm wind also.
Description
Affiliated field
The present invention relates to air purification field, particularly a kind of purification method of room air and device.
Background technology
Along with improving constantly of living standards of the people, people are also more and more higher to the requirement of IAQ, and air purifier also arises at the historic moment.Its basic principle of existing air purifier is: during work, indoor foul atmosphere is by air grid (air inlet), filtering blank, and through filtration, purification layer by layer, clean air blows out from air outlet, thereby with indoor air purifying.But this type of air purifier just carries out the filtration, purification of physical property to airborne particle, well-known airborne pollutant absolutely not only contains particle, wherein by reasons such as house ornamentation produce then bigger such as pernicious gases such as benzene, formaldehyde, ammonia, carbon monoxide to the harm of human body, existing filtering type air purifier can not fall these pernicious gases " purification ".
Summary of the invention
The objective of the invention is to provide a kind of purification method that pernicious gases such as the benzene of indoor existence, formaldehyde, ammonia, carbon monoxide thoroughly can be resolved into a kind of room air of innocuous substance.
Another object of the present invention is that a kind of device of realizing above-mentioned purification indoor harmful gas method will be provided.
A further object of the present invention is to provide a kind of when purifying indoor harmful gas, can send the indoor air-purification device of warm braw again.
The present invention adopts technical scheme as described below for achieving the above object: the purification method of room air is: the air that contains pernicious gas through the high-temperature catalytic reactive mode with the pernicious gas catalytic decomposition after, become clean air.Wherein pernicious gas can be benzene, formaldehyde, ammonia, carbon monoxide etc.The high-temperature catalytic reactive mode be a kind of be object with the covalent compound, in " heat " catalytic reaction mode as the maturation of the core of catalytic reaction.Its thermocatalysis principle is: covalent compound is absorbing the energy metapedes to overcome the potential energy barrier that the bond energy that ruptures between atom or reactant react, compound just can cracking and then chemical reaction is taken place, realize the conversion of material, under the effect of catalyst, then can reduce the potential energy barrier of reaction, thereby make the energy condition of reaction be minimized.Harmful substance in the air pollutants mainly is a covalent compound, and employing high-temperature catalytic reactive mode can be with its thorough catalytic decomposition.
For reduce airborne particle and on attachment to the interference of catalytic reaction, before the air that contains pernicious gas carries out the high-temperature catalytic reaction, can be earlier by a filter filtration, purification particle, and preferably select for use and can filter out the filter that particle diameter is the particle more than the 0.3 μ m to be not less than 99.97% purification efficiency.
Because of harmful substance needs could react under certain temperature condition in high-temperature catalytic reactor, therefore before carrying out the high-temperature catalytic reaction, the air that contains pernicious gas can preheat air by a heater.
A kind of indoor air-purification device of realizing above-mentioned indoor air purification method, it includes casing and blower unit, casing is provided with air inlet and air outlet, be formed with a gas channel between air inlet and air outlet, blower unit is installed in the gas channel, and also being provided with one in the gas channel can be with the high-temperature catalytic reaction unit of pernicious gas catalytic decomposition.
In the gas channel in high-temperature catalytic reaction unit air current flow direction the place ahead, be provided with particulate filter.This particulate filter preferably adopts the HEPA filter, and this particulate filter is positioned at the air inlet place of casing.
Also be provided with a heater in the gas channel, this heater is positioned at the place ahead of the air current flow direction of high-temperature catalytic reaction unit.
Adopt the present invention of technique scheme, the purification method of room air wherein, its adopts high-temperature catalytic reactive mode to decompose harmful substances in air, and this method has following advantage:
At first, it has been broken through in the indoor air purification field conventional method and the thoughtcast that physical filtering purifies has only been carried out in air cleaning, and changes the method catalytic decomposition harmful substance with chemistry into.
Second, it is compared with conventional method, the air pollutants difference that they purified, conventional method can only the filtration, purification particulate contaminants, and method of the present invention, then directly at the bigger harmful substance of health influence is carried out decomposing, purifying, from the aspect raising cleaned air passes quality of matter.
In addition, before the air that contains pernicious gas carries out the high-temperature catalytic reaction, earlier by the airborne particle of a filter filtration, purification, so not only reduced airborne particle and on attachment to the interference of catalytic reaction, improved the efficient of high-temperature catalytic reaction unit catalytic decomposition pernicious gas, also realized filtration, purification simultaneously, physical filtering has been purified with the chemical catalysis purification organically be unified in.
Indoor air-purification device of the present invention, realized that above-mentioned catalytic decomposition to harmful substances in air purifies, and except that the whole advantages with said method part, has more following advantage:
It utilizes the high-temperature catalytic reaction unit need reach the characteristics of uniform temperature dexterously when work, realized purifying heating of back air, make it not only have the effect of air cleaning, have more the effect of warm-air drier, be particularly suitable for the purification of room air in winter and heat.
The filter of this device adopts the HEPA filter, is 0.3 micron particle for particle diameter, and filter efficiency is not less than 99.97%, and can effectively stop and killing bacteria, virus.
Characteristics such as it is simple and direct rationally that this apparatus structure itself also has design, easy to use.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is the structure cross-sectional schematic of air cleaning unit among the present invention.
Fig. 3 is the foldable structure schematic diagram of filtering material in the filter of air cleaning unit among the present invention.
The specific embodiment
See also shown in Figure 1, the purification method of room air among the present invention, it comprises the steps: that the foul atmosphere that at first contains pernicious gas filters out particle via a filter, second goes on foot after filtration, and cleaned air passes is heated to 200-350 ℃ by a heater, the air of the 3rd step through heating enters catalytic unit generation high-temperature catalytic reaction, catalytic decomposition such as the pernicious gas in the foul atmosphere such as benzene, formaldehyde, ammonia, carbon monoxide are become innocuous substance, send into indoor with the warm braw of cleaning.
Most critical was the 3rd step in the said method, the high-temperature catalytic reactive mode in this step be a kind of be object with the covalent compound, in " heat " catalytic reaction mode as the catalytic reaction core.Its thermocatalysis principle is: covalent compound is absorbing the energy metapedes to overcome the potential energy barrier that the bond energy that ruptures between atom or reactant react, compound just can cracking and then chemical reaction is taken place, realize the conversion of material, under the effect of catalyst, then can reduce the potential energy barrier of reaction, thereby make the energy condition of reaction be minimized.This high-temperature catalytic reactive mode is a kind of than mature technique, its application also is more and more extensively and profoundly, as TWC Three Way Catalyst System is exactly to adopt the high-temperature catalytic reaction principle in the concrete application aspect the improvement vehicle exhaust, it is sulfur-bearing, the nitrogen-containing compound in the decomposing automobile exhaust effectively, and various organic matters, thereby reach the harmless purpose of tail gas; Moreover cooking device self-cleaning catalyst, be under cook temperature, the grease that splashes to be carried out catalytic oxidation combustion and is converted into steam and CO
2Thereby, pollution abatement and stench etc.
In this is bright, adopt the high-temperature catalytic reactive mode to decompose harmful substances in air, mainly be that harmful substance in the air pollutants such as benzene, formaldehyde, ammonia, carbon monoxide etc. mainly all are covalent compounds, just in time the reaction object with the high-temperature catalytic reactive mode matches, therefore can be with its thorough catalytic decomposition.
In the first step of the inventive method airborne particle is filtered out, be for reduce airborne particle and on attachment to the interference of high-temperature catalytic reaction, improve the efficient of its catalytic decomposition pernicious gas.The selected filtering material of filter can be general filtering material, also can be the high efficiency filter material, and preferably to select the HEPA in the high efficiency filter material, HEPA for use be the abbreviation of English High Efficiency ParticulateAir.HEPA system is by the overlapping high-efficiency air filtering material that is interwoven of very tiny fibrous material, its surface has the multilayer small embossment, thereby make it that interception catch rate height be arranged, characteristics such as adsorption capacity is big, HEPA is applied to nuclear energy research protection now to be widely used in Surgical Operating Room, crystal is made, medicine production etc. have the place, field of strict demand to air quality, raising along with development of science and technology and people's living standard, now more and more be applied in civilian air cleaning industry or the product, and its raw material also are not limited only to glass fibre, now existing other substitution material of application replaces glass, has reached the example of effect same.The HEPA filter is the not level filtration purifier of toilet (place), and its efficient is used to be as the criterion with the particle that filters 0.3 μ m, and is more than 99.97% to the filtration, purification efficient of 0.3 μ m particle.
Employing HEPA high efficiency filter material has reduced particle to greatest extent and has gone up the interference of attachment to catalytic reaction.
The first step of the present invention in addition organically has been unified in the physical filtering purification of air cleaning and chemical catalysis purification with the combination in the 3rd step.
Air purification method of the present invention adopts the high-temperature catalytic reactive mode to decompose harmful substances in air, though the existing use in other field of high-temperature catalytic reactive mode, it is applied to the indoor air purification field is unprecedented.It is with traditional physical filtering purification method, change method catalytic decomposition harmful substance into chemistry, this is an important breakthrough to conventional method and thoughtcast in the indoor air purification field, produced significant effect, because it is compared with conventional method, the air pollutants difference that they purified, conventional method can only the filtration, purification particulate contaminants, and method of the present invention, then directly at the bigger harmful substance of health influence is carried out decomposing, purifying, from the aspect raising cleaned air passes quality of matter.
See also shown in Figure 2, indoor air-purification device, it includes casing 1 and blower unit, device was one to have the motor 2 of wind wheel 6 in this drew, casing 1 is provided with air inlet 7 and air outlet 8, selects to be formed with gas channel 9 between air port and air outlet, and motor 2 is installed in the gas channel 9.
Be provided with a HEPA filter 3 at air inlet 7 places, also being provided with one in the gas channel in air outlet 8 the place aheads can be with the high-temperature catalytic reaction unit 5 and the heater 4 of pernicious gas catalytic decomposition.This heater 4 is positioned at the place ahead of the air current flow direction of high-temperature catalytic reaction unit 5.
During the work of this device, motor 2 drives wind wheel 6 and rotates, the foul atmosphere that will contain pernicious gas sucks in the gas channel 9 through HEPA filter 3 from air inlet 7, HEPA filter 3 is that particle more than the 0.3 μ m filters out to be not less than 99.97% purification efficiency with the particle diameter in the foul atmosphere, cleaned air passes enters heater 4 along gas channel 9 after filtration, heater 4 is heated to 200-350 ℃ and enters high-temperature catalytic reaction unit 5 again, pernicious gas in the foul atmosphere is such as benzene, formaldehyde, ammonia, carbon monoxide etc. are become innocuous substance by catalytic decomposition in high-temperature catalytic reaction unit 5, send into indoor with the warm braw of cleaning from air outlet 8.
By this indoor air-purification device, realized that above-mentioned catalytic decomposition to harmful substances in air purifies, and except that the whole advantages with said method part, has more following advantage:
It utilizes the high-temperature catalytic reaction unit need reach the characteristics of uniform temperature dexterously when work, realized purifying heating of back air, make it not only have the effect of air cleaning, have more the effect of warm-air drier, be particularly suitable for the purification of room air in winter and heat.
The filter of this device adopts the HEPA filter, is 0.3 micron particle for particle diameter, and filter efficiency is not less than 99.97%, and can effectively stop and killing bacteria, virus.
See also shown in Figure 3ly, the high efficiency filter material HEPA in HEPA filter 3 is mounted in the filter with " it " shape folding mode.Can increase the contact-making surface of clarifier and air so greatly, reduce the vertical impulse of particulate in air, thereby increase substantially the whole efficiency and the whole dust containing capacity of air purifier high efficiency filter material HEPA.
The foregoing description is the specific embodiment of the present invention, only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (10)
1, a kind of purification method of room air is characterized in that: the air that contains pernicious gas with the high-temperature catalytic reactive mode with the pernicious gas catalytic decomposition after, become clean air.
2, the purification method of room air according to claim 1 is characterized in that: the air that contains pernicious gas is first by a filter filtration, purification particle before carrying out the high-temperature catalytic reaction.
3, the purification method of room air according to claim 2 is characterized in that: to filter out particle diameter be particle more than the 0.3 μ m to described filter to be not less than 99.97% purification efficiency.
4, the purification method of room air according to claim 1 and 2 is characterized in that: the air that contains pernicious gas is preheated by a heater earlier before carrying out the high-temperature catalytic reaction.
5, the purification method of room air according to claim 1 is characterized in that: described pernicious gas comprises benzene, formaldehyde, ammonia, carbon monoxide.
6, a kind of indoor air-purification device, it includes casing and blower unit, casing is provided with air inlet and air outlet, be formed with a gas channel between air inlet and air outlet, blower unit is installed in the gas channel, it is characterized in that: also being provided with one in the gas channel can be with the high-temperature catalytic reaction unit of pernicious gas catalytic decomposition.
7, indoor air-purification device according to claim 6 is characterized in that: be provided with particulate filter in the gas channel in high-temperature catalytic reaction unit air current flow direction the place ahead.
8, indoor air-purification device according to claim 7 is characterized in that: described particulate filter adopts the HEPA filter.
9, according to claim 7 or 8 described indoor air-purification devices, it is characterized in that: described particulate filter is positioned at the air inlet place of casing.
10, indoor air-purification device according to claim 6 is characterized in that: also be provided with a heater in the gas channel, this heater is positioned at the place ahead of the air current flow direction of high-temperature catalytic reaction unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021256799A CN1470809A (en) | 2002-07-26 | 2002-07-26 | Method and apparatus for purifying indoor air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021256799A CN1470809A (en) | 2002-07-26 | 2002-07-26 | Method and apparatus for purifying indoor air |
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| CN1470809A true CN1470809A (en) | 2004-01-28 |
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| CNA021256799A Pending CN1470809A (en) | 2002-07-26 | 2002-07-26 | Method and apparatus for purifying indoor air |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924463B (en) * | 2005-08-31 | 2010-10-06 | 刘静 | Composite air purifier based on multiple catalyst catalyzed semiconductor materials |
| CN105247294A (en) * | 2013-05-08 | 2016-01-13 | 阿莫绿色技术有限公司 | Hot air blower having air cleaning function |
| CN107073301A (en) * | 2014-11-14 | 2017-08-18 | 霍尼韦尔国际公司 | Adjustable VOC/ formaldehyde absorbs jointly can use mask filter core and tank |
| CN109798605A (en) * | 2017-11-15 | 2019-05-24 | 尹国鑫 | Indoor high temperature air clarifier |
| CN111336619A (en) * | 2020-04-04 | 2020-06-26 | 长沙贤正益祥机械科技有限公司 | Air purifier, control method thereof and air purification method |
| CN113465087A (en) * | 2020-03-11 | 2021-10-01 | 广东美的制冷设备有限公司 | Air purification device and household appliance |
-
2002
- 2002-07-26 CN CNA021256799A patent/CN1470809A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924463B (en) * | 2005-08-31 | 2010-10-06 | 刘静 | Composite air purifier based on multiple catalyst catalyzed semiconductor materials |
| CN105247294A (en) * | 2013-05-08 | 2016-01-13 | 阿莫绿色技术有限公司 | Hot air blower having air cleaning function |
| CN107073301A (en) * | 2014-11-14 | 2017-08-18 | 霍尼韦尔国际公司 | Adjustable VOC/ formaldehyde absorbs jointly can use mask filter core and tank |
| CN109798605A (en) * | 2017-11-15 | 2019-05-24 | 尹国鑫 | Indoor high temperature air clarifier |
| CN113465087A (en) * | 2020-03-11 | 2021-10-01 | 广东美的制冷设备有限公司 | Air purification device and household appliance |
| CN111336619A (en) * | 2020-04-04 | 2020-06-26 | 长沙贤正益祥机械科技有限公司 | Air purifier, control method thereof and air purification method |
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