CN1624394A - Photo catalysis reaction chamber fir air purification - Google Patents
Photo catalysis reaction chamber fir air purification Download PDFInfo
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- CN1624394A CN1624394A CN 200410067601 CN200410067601A CN1624394A CN 1624394 A CN1624394 A CN 1624394A CN 200410067601 CN200410067601 CN 200410067601 CN 200410067601 A CN200410067601 A CN 200410067601A CN 1624394 A CN1624394 A CN 1624394A
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- reaction chamber
- gas duct
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- duct
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
An photocatalysis reaction cavity for air purifying, comprising shell, purification net of photocatalysis, channel, sealing plate and light source. The channel of gas is formed by purification net of photochemical catalysis, and several channels is connected paralleled to the air flowing direction since one end of each channel is sealed by the sealed panel, the light source is in the middle of the channel and parallel to it, the whole cellular reaction cavity is packaged by the shell of reaction cavity. The cleaning effect of photocatalysis is increased by sharply reduced air flowing speed, and air resistance of the system is small and its structure is simple. The invention can control the air flowing speed of reaction plate by adjusting the size, number and length of the channel of gas, especially suitable for air purifying of the central air conditioning system, as well as reaction cavity of air cleaning device inside.
Description
Technical field
The present invention relates to a kind of air cleaning unit, specifically is a kind of photo catalysis reaction chamber fir air purification, is used for the mechanical engineering air-conditioning technical field.
Background technology
Because the City Building syndrome that modern residential environment and interior decoration etc. cause, room conditioning disease, organic contamination etc. directly have influence on people's health and lives safety.Because of central air conditioner system can not be regular cleaning and sterilization, its internal system becomes the bacteria breed place and the environmental pollution that brings, paid more and more attention.Particularly since the cross-infection problem that the use of central air conditioner system produces communicable diseases receive much attention.
Photocatalysis is a kind of emerging depollution of environment technology.Nano-TiO
2Photochemical catalyst oxidation or reduction effectively is adsorbed on its lip-deep pernicious gas molecule, and kill bacteria suppresses virus, and harmful organic substance, bacterium etc. can be converted into innocuous substances such as water and carbon dioxide, and without any secondary pollution.
Nearest studies show that: the reaction of complex processes such as energy conversion and chemical reaction, the extensive efficient that depends on photocatalytic system integral body of effectively using of photocatalysis technology take place, are comprising in pollutant in the PHOTOCATALYTIC AIR-PURIFYING in photocatalyst surface under certain light source effect.The raising of system effectiveness depends on quality and system's associated hot physics usefulness of photochemical catalyst, and the structure of light-catalyzed reaction chamber and runner also is one of key problem that improves existing photocatalysis air-cleaning efficient.The air that contains pollutant is that gas-solid two contacts by photochemical catalyst, the absorption and the desorption process that have gas molecule, its flow velocity speed, the photochemically reactive degree of depth of carrying out of time length influence, thereby influencing the effect of catalytic oxidation to a great extent by the wind speed of light-catalyzed reaction sheet, the big more photocatalysis effect of wind speed is poor more.The import and export wind speed of the wind speed of pipeline and indoor air-purifier is generally all at the 2-6 meter per second in the central air conditioner system, because wind speed is excessive, often clean-up effect is very poor to utilize flat light catalytic purifying net, adopts wave reaction sheet, and the improvement degree is also extremely limited.
Find that by prior art documents Chinese patent application number is 03129401.4 patent, this patent adopts multi-layered photocatalyst reaction sheet, though improved photocatalysis efficiency, has increased the air resistance of system, and this is unfavorable to system's operation.Particularly in central air conditioner system, increase excessive resistance, certainly will influence the operation of whole system.Simultaneously, still can not solve by the too fast problem of the air velocity of photocatalysis net.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of photo catalysis reaction chamber fir air purification is provided.Make it can significantly reduce the photocatalytic surfaces wind speed, can fully receive light source again, also can reduce air drag greatly simultaneously.
The present invention is achieved through the following technical solutions, the present invention includes: reaction chamber shell, light catalytic purifying net, gas duct, sealing plate and light source, its annexation is: form the gas duct by the light catalytic purifying net, closely compose in parallel cellular reaction chamber by a plurality of gases duct, by sealing plate the end in the two ends in each gas duct is sealed at interval, gas duct direction is parallel with gas flow direction.Light source is positioned at the centre in gas duct, and is parallel to the gas duct.The gas duct that light source is installed can be the air intake duct, or the air-out duct, or its both.Whole cellular reaction chamber is wrapped up by the reaction chamber shell.
When air enters, via the windward side side is each gas duct (being called the air intake duct) of openend, because the other end in these gas ducts is sealing, gas can only pass tube wall (light catalytic purifying net) and arrive adjacent gas duct (being called the air-out duct), discharges from the openend in this air-out duct again.Like this, gas duct number is many more, the gas duct is long more, and then the air velocity by the light catalytic purifying net is more little, and pollutant holdup time in reaction chamber is long more.Thereby under photocatalysis, airborne organic pollution and bacterium etc. can oxidized effectively decomposition and kill, and discharge clean air.
The light catalytic purifying net can be the nano-photo catalytic net of woven wire or foam metal load, or the screen pack made of composite Nano photocatalytic particle, or the photocatalysis net of the papery even load of good permeability.Light source can be the general ultraviolet fluorescent tube, also can be CCFL.Fluorescent tube can be installed in the air intake duct, or in the air-out duct.The gas orifice road shape is that square, circle etc. is not limit.Circular gas duct makes more convenient, can use the gas duct as the air intake duct, and fluorescent tube is installed therebetween, forms the air-out duct by the gap between each circular duct.
The present invention can pass through adjustments of gas duct size, number and length, reaches the air velocity of control by the light catalytic purifying net.Use the light-catalyzed reaction chamber in circular gas duct to be example in total air channel with square sectional:
If the square sectional length of side is 1, the gas flow rate by gas duct sectional area is V
o, by N * N tight anabolic reaction chamber, circular gas duct, reaction chamber length is L, then
Diameter phi=the 1/N in circular gas duct, girth l=π φ=π/N
The photocatalysis net area s=π L/N that forms each circular duct
The total effective area of light catalytic purifying net is N
2* π L/N=π NL
Speed by gas cell walls light catalytic purifying net is V '=V
o/ π NL
As seen, if the reaction chamber in total gas duct is made up of 3 * 3 gas ducts, reaction chamber length is 1 (unit and V
oCorresponding), then wind speed can be reduced to nearly original 1/10th.
Compared with prior art, the present invention can reduce the speed of pollutant by the light catalytic purifying net greatly, prolongs the pollutant holdup time, thereby significantly improves the light catalytic purifying effect.Simultaneously, owing to obviously reduce by the flow velocity of photocatalysis net, the air drag that is produced is also very little thus.The present invention can be used for various air purifiers, be specially adapted to the indoor air purification of central air conditioner system, the gas-flow resistance that the installation owing to the light catalytic purifying net produces be can not only reduce effectively, and light catalytic purifying organic pollution and sterilization ground effect improved significantly.
Description of drawings
Fig. 1 structural representation of the present invention
Fig. 2 BODY WITH SQUARE APERTURE reaction chamber of the present invention structural representation
The circular duct of Fig. 3 the present invention reaction chamber structural representation
The specific embodiment
As Figure 1-3, the present invention includes: reaction chamber shell 1, light catalytic purifying net 2, gas duct 3, sealing plate 4 and light source 5, its annexation is: form gas duct 3 by light catalytic purifying net 2, closely compose in parallel cellular reaction chamber by a plurality of gases duct 3, by sealing plate 4 end in the two ends in each gas duct 3 is sealed at interval, gas duct 3 directions are parallel with gas flow direction.Light source 5 is positioned at the centre in gas duct 3, and is parallel to gas duct 3, and whole cellular reaction chamber is by reaction chamber shell 1 parcel.
Light catalytic purifying net 2 can be the nano-photo catalytic net of woven wire or foam metal load, or the screen pack made of composite Nano photocatalytic particle, or the photocatalysis net of the papery even load of good permeability.
The gas duct 3 that light source 5 is installed can be the air intake duct, or the air-out duct, or its both.Light source 5 is common ultraviolet fluorescent tube or cold cathode ultraviolet tube.
After air enters this system, behind air intake duct 3, pass the photocatalysis stratum reticulare and arrive four adjacent air-out ducts, 3 back discharges.Because the gas flow rate that sees through photocatalysis net has prolonged the acting in conjunction time of light source and photochemical catalyst, thereby has improved the light catalytic purifying effect with the remarkable reduction of comparing in total air channel.
Claims (4)
1, a kind of photo catalysis reaction chamber fir air purification, comprise: reaction chamber shell (1), light catalytic purifying net (2) and light source (5), it is characterized in that, also comprise: gas duct (3) and sealing plate (4), annexation is: form gas duct (3) by light catalytic purifying net (2), closely compose in parallel cellular reaction chamber by a plurality of gases duct (3), by sealing plate (4) end in the two ends in each gas duct (3) is sealed at interval, gas duct (3) direction is parallel with gas flow direction, light source (5) is positioned at the centre of gas duct (3), and being parallel to gas duct (3), whole cellular reaction chamber is wrapped up by reaction chamber shell (1).
2, photo catalysis reaction chamber fir air purification according to claim 1 is characterized in that, described light source (5) is common ultraviolet fluorescent tube or cold cathode ultraviolet tube.
3, photo catalysis reaction chamber fir air purification according to claim 1, it is characterized in that, described light catalytic purifying net (2) is the nano-photo catalytic net of woven wire or foam metal load, or the screen pack made of composite Nano photocatalytic particle, or the papery of good permeability is as the photocatalysis net of carrier.
4, photo catalysis reaction chamber fir air purification according to claim 1 is characterized in that, gas duct (3) are square, or circular, or other geometry, gas duct (3) diameter 20-400mm, length 100-1000mm, a plurality of serial or parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100676010A CN1327163C (en) | 2004-10-28 | 2004-10-28 | Photo catalysis reaction chamber fir air purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100676010A CN1327163C (en) | 2004-10-28 | 2004-10-28 | Photo catalysis reaction chamber fir air purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624394A true CN1624394A (en) | 2005-06-08 |
| CN1327163C CN1327163C (en) | 2007-07-18 |
Family
ID=34765101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100676010A Expired - Fee Related CN1327163C (en) | 2004-10-28 | 2004-10-28 | Photo catalysis reaction chamber fir air purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1327163C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101288839B (en) * | 2007-04-17 | 2011-09-14 | 港大科桥有限公司 | Light-transmitting tubular honeycomb type photocatalytic reactor |
| CN103868158A (en) * | 2014-03-18 | 2014-06-18 | 重庆大学 | Wall-mounted household high-efficiency photocatalysis air purifier |
| CN107321180A (en) * | 2017-08-22 | 2017-11-07 | 四川研宝科技有限公司 | A kind of photodissociation catalytic converter of convenient maintenance |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1076141A (en) * | 1996-09-02 | 1998-03-24 | Toyota Motor Corp | Catalyst for purification of exhaust gas |
| JPH1147528A (en) * | 1997-07-29 | 1999-02-23 | Erugotetsuku Kk | Filter apparatus |
| TW402677B (en) * | 1999-10-06 | 2000-08-21 | Circuit Ind Co Ltd | Apparatus using photo catalyst to purify air |
| JP2002309923A (en) * | 2001-04-11 | 2002-10-23 | Isuzu Motors Ltd | Diesel exhaust emission purifier |
| CN2508848Y (en) * | 2001-11-05 | 2002-09-04 | 李彦 | Large-flow tube type optical catalysis reactor |
| JP2003310724A (en) * | 2002-04-21 | 2003-11-05 | Andes Denki Kk | Air cleaner |
| CN2553797Y (en) * | 2002-05-24 | 2003-06-04 | 清华大学 | Tubular photocatalysis air purifying sterilization apparatus |
| CN1224428C (en) * | 2002-06-14 | 2005-10-26 | 清华大学 | Overlapping combination type photocatalysis air purification and disinfection apparatus |
-
2004
- 2004-10-28 CN CNB2004100676010A patent/CN1327163C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101288839B (en) * | 2007-04-17 | 2011-09-14 | 港大科桥有限公司 | Light-transmitting tubular honeycomb type photocatalytic reactor |
| CN103868158A (en) * | 2014-03-18 | 2014-06-18 | 重庆大学 | Wall-mounted household high-efficiency photocatalysis air purifier |
| CN107321180A (en) * | 2017-08-22 | 2017-11-07 | 四川研宝科技有限公司 | A kind of photodissociation catalytic converter of convenient maintenance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1327163C (en) | 2007-07-18 |
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Granted publication date: 20070718 Termination date: 20091130 |