CN2847126Y - Microwave auxiliary plasma catalytic air purifier - Google Patents
Microwave auxiliary plasma catalytic air purifier Download PDFInfo
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- CN2847126Y CN2847126Y CN 200520066842 CN200520066842U CN2847126Y CN 2847126 Y CN2847126 Y CN 2847126Y CN 200520066842 CN200520066842 CN 200520066842 CN 200520066842 U CN200520066842 U CN 200520066842U CN 2847126 Y CN2847126 Y CN 2847126Y
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Abstract
The utility model relates to a plasma catalytic air purifier, particularly a microwave auxiliary plasma catalytic air purifier which comprises a filter section, an ultraviolet sterilizing section and a purifying and degrading section with a plasma catalytic reaction unit. The utility model has the difference that the purifying and degrading section arranged in a relative enclosed casing also comprises an adsorbing unit, a microwave generating unit and a carbon reduction unit, wherein the adsorbing unit and the plasma catalytic reaction unit are respectively positioned at the lower and the upper parts of the purifying and degrading section. Under the action of a microwave field, the utility model can effectively degrade harmful gases in the air, can eliminate byproducts of ozone and nox which are produced by the plasma catalytic action, and simultaneously can treat large air flow in unit time.
Description
Technical field
The utility model relates to a kind of plasma catalytic air purification device, the plasma catalytic air purification device that particularly a kind of microwave is auxiliary.
Background technology
The universal room air pollution that causes because of uses such as interior decoration and (central authorities) air-conditioners has been summed up as one of environmental factor that endangers publilc health by international community.For purifying the air of a room, developed indoor air-purification device miscellaneous and technology at present, comprise physical filtering, electrostatic precipitation, anion, ozone or ultraviolet etc., these purification techniques all can not thoroughly be eliminated gaseous contaminant, make it innoxious.In recent years, the new technology of labile organic compound such as plasma-catalytic and nano-photo catalytic has been applied to air purification field in succession.The technology that plasma-catalytic purifies air has had disclosure in Chinese patent CN94247975.0, CN02262150.4, CN02205468.5, CN200320109667.2.But, in actual application, plasma-catalytic class purification techniques and device also exist a lot of deficiencies, embody a concentrated expression of: 1, can produce ozone and NO in the running
xDeng accessory substance, the output of these accessory substances sometimes even surpassed pernicious gas content before purifying, and, for indoor original NO
x, existing simple absorption class, photocatalysis class, plasma class air purifier all do not possess degradation capability; 2, the treating capacity in the unit interval is limited, the air velocity height of purifier, by the time in short-term, its degradation efficiency is low excessively, can't satisfy the requirement of handling mass flow air in the short time.
Therefore, press for and develop a kind of novel plasma-catalytic indoor air cleaner, it can either handle a large amount of air at short notice, and does not produce accessory substances such as ozone and nitrogen oxide, perhaps the content of by-products of Chan Shenging is very low, can meet the green technology standard of country.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the utility model provides a kind of microwave auxiliary plasma catalytic air purification device, the airborne pernicious gas of can effectively degrading, and eliminate ozone, the NOx accessory substance that the plasma-catalytic effect produces, can also in the unit interval, handle big air mass flow.
The technical scheme that the utility model adopted is: the plasma catalytic air purification device that a kind of microwave is auxiliary, this clarifier includes fillter section, the ultraviolet-sterilization section, the purification degraded section that contains the plasma-catalytic reaction member, its difference is that the interior purification degraded section of housing that is installed in relative closure also includes absorbing unit, microwave generating unit, carbon reduction unit; Absorbing unit, plasma-catalytic reaction member lay respectively at the bottom and the top of degraded clean-up stage.
As to improvement of the technical scheme, in the housing of purification degraded section of the present utility model, can install anion net 4.
The air purifying process that the utility model provides in the plasma-catalytic processing procedure, has added microwave field.Because under the microwave radiation condition, the productive rate and the energy of the free radical that is produced by the high energy electron of generation that high voltage excites and high energy electron bombardment are significantly improved, simultaneously, microwave can effectively improve the catalytic performance of catalyst such as nano titanium oxide, comprise photocatalysis and thermocatalytic, can effectively improve the degradation rate of plasma catalytic reactor degradation of organic substances.
Because the utility model is in the plasma-catalytic processing procedure, increased the carbon reduction unit, under microwave action, utilize the mechanism of carbon reduction, can be from air, concentrating the resolved NO that goes out in back
xAnd the accessory substance NO that in the plasma-catalytic course of reaction, produces
xBe reduced to harmless nitrogen G﹠W.
And, because the utility model adopts the mode of handling in enclosure space, the small amount of ozone that plasma-catalytic produces also can consume by the mode that participates in degradation of organic substances and oxidation CO in the space of relative closure automatically, and by such process, NOx, CO, ozone are all finally eliminated.
Because the utility model has adopted the first intermittent cycle processing mode of afterwards degrading of adsorbing, adsorption process has guaranteed that pernicious gas effectively captures under upper air current speed condition, it is also processed that degradation treatment has subsequently guaranteed that then pernicious gas has the sufficient time to stop at treatment region, thereby both guaranteed good degradation effect, realized the air cleaning of big flow again pernicious gas.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present utility model;
Fig. 2 is the structural representation of parts 1 among Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
As shown in Figure 1, an embodiment of the present utility model is a rectangle structure, the bottom is air intake and air filtration section, the middle part is the ultraviolet-sterilization section, top is for purifying degraded section and clean air outlet, be installed on closing door 2 and fan 3 at the air outlet slit place, purifying absorbing unit, microwave generating unit, plasma-catalytic reaction member, carbon reduction unit in the degraded section all is in the housing 7 that is surrounded by sheet metal and net, absorbing unit is positioned at the bottom of degraded clean-up stage, and the plasma-catalytic reaction member is positioned at the top of this housing 7.
Among the utility model embodiment, the air filtration section that bottom air import department is provided with is mainly done dust removal process to air, enzyme on the screen pack also can kill bacterium attached thereto simultaneously, and the virus less than 0.5 μ m that the ultraviolet germicidal at middle part can not be removed filter, spore etc. kill under the strong ultraviolet radiation effect.
The air filtration section has adopted elementary, middle and high tertiary filter 9 to be arranged in order mode, and wherein high efficiency particulate air filter has adopted the HEPA filter.
The ultraviolet-sterilization section is installed on a ultraviolet lamp tube 8, and certainly, the mode that also can take to install many ultraviolet lamp tubes realizes the sterilization purpose.
Among the utility model embodiment, absorbing unit adopts the form of adsorbent bed 6, and adsorbing medium is the porous carbon absorbent, also can adopt the stronger adsorbing mediums of other absorption affinities such as polymeric adsorbant.Its main purpose is that pernicious gas is effectively captured.
In the utility model, the effect of microwave is mainly reflected in several aspects: at first be the processing pernicious gas that strengthens plasma unit, the ability of degradation of organic substances; Next is to realize the carbon reduction ability, and the accessory substance NOx that produces in the plasma-catalytic course of reaction is reduced to the nitrogen G﹠W; Moreover, under microwave action, can parse the pernicious gas that absorbing unit is caught, make absorbing unit regeneration simultaneously.
So the microwave generating unit can be divided into separately independently three parts, act on carbon reduction unit, absorbing unit, plasma-catalytic reaction member respectively, also can adopt compound mode, concentrate to act on above-mentioned processing unit.In the air cleaning unit embodiment that the utility model provides, employing be compound mode, can realize above-mentioned purpose simultaneously.As shown in Figure 1, the microwave generating unit adopts conventional microwave generating apparatus 5, and microwave generating apparatus 5 directly is installed on air cleaning section closure casing 7 rear wall relative with air outlet slit, and the microwave that discharges will be concentrated and enter in the housing 7.
Among the utility model embodiment, the carbon reduction unit can be provided with separately, also can be provided with other processing unit combination.In the air cleaning unit embodiment that the utility model provides, adopted the mode that is provided with the combination of plasma-catalytic reaction member, be combined in the plasma catalytic reactor 1.
Among the utility model embodiment, the dielectric barrier filling bed type reactor 1 that the plasma-catalytic reaction member has selected for use high voltage to excite certainly, also can be selected other forms of plasma catalytic reactor for use.As shown in Figure 2, the reaction tube of dielectric barrier filling bed type reactor 1 includes two sections, leading portion is the plasma-catalytic reaction member in the pipe, be filled with the Woelm Alumina bead 12 of coated with nano titanium deoxide catalyst in the pipe, this conversion zone mainly is the plasma photocatalysis resolving harmful gas that passes through plasma exciatiaon under microwave reinforced effect, the material of filling in the pipe can be other also, as high dielectric materials such as barium titanates; Back segment is the carbon reduction unit of combination in the pipe, is filled with granular porous carbonaceous material 13 in the pipe, and its effect is under the auxiliary effect of microwave, and nitrogen oxide and the ozone of remnants is thoroughly purified elimination.Dielectric barrier filling bed type reactor 1 is excited by high voltage excitation apparatus 14, and inside is inner wire electrode 11, and the outside is specifically designed to the poroid external electrode of rectangular grid 10, perhaps is designed to the coiling electrode that can allow the microwave energy radiant energy to enter.
Among the utility model embodiment, adsorbent bed 6, plasma catalytic reactor 1 lay respectively at the bottom and the top of degraded clean-up stage, pernicious gas after the desorb also compiles to purifying degraded section top by free convection owing to absorbed the rising of heat temperature, is convenient to like this collect.If the outlet of air cleaning unit, directly be arranged in the front upper place of degraded clean-up stage, pernicious gas leaks into the interior space easily, so in the air cleaning unit embodiment that the utility model provides, installed a closing door 2 at the air outlet slit place, as shown in Figure 1, when plasma reactor and microwave generating device works, will close, the top of whole like this housing is with complete closed, the then resolved again pernicious gas that goes out of adsorbent bed absorption will be in the enclosure space, and can not leak to indoor.Certainly, if the outlet of air cleaning unit directly is arranged in the front lower place of degraded clean-up stage, just near the middle part of air cleaning unit, just closing door can be removed, the poisonous gas leakage of sucking-off can be effectively prevented to separate in the processing procedure equally to indoor.
The utility model embodiment in use, through behind the adsorbent bed 6, pernicious gas wherein will be adsorbed through dust removal process, the air of disinfecting, what discharge from outlet has been cleaned air passes.The 6 work regular hours of adsorbent bed, its adsorption effect will weaken, even forfeiture.So, microwave generating apparatus 5 will start, and pernicious gas is parsed from adsorbent bed 6, be released in the space of sealing to focus on, make adsorbent bed 6 regeneration simultaneously, can guarantee that like this air cleaning unit can constantly carry out adsorption treatment to airborne pernicious gas.Simultaneously, because after microwave generating apparatus 5 starts, closing door 2 will be closed, plasma catalytic reactor 1 also will start, the pernicious gas that parses and enter enclosure space will be under microwave action, fully contact with the oxidation panel (the Woelm Alumina bead 12 of coated with nano titanium deoxide catalyst) of plasma catalytic reactor 1, organic matter will be degraded, because the high dielectric material in plasma catalytic reactor 1 pipe can very effective absorption microwave energy, can effectively improve the catalytic performance (comprising photocatalysis and thermocatalytic) of bead surface nano-titanium dioxide, and the high energy electron of generation that high voltage excites and the productive rate and the energy of the free radical that the high energy electron bombardment is produced are obviously improved, improved organic degradation rate.And the accessory substance NO that in degradation process, produces
x, and room air in be adsorbed the resolved NO that goes out in back earlier
x,, under microwave action, will be reduced to the nitrogen G﹠W because of fully contacting with carbon reduction section (granular porous carbonaceous material 13).Adopt porous charcoal material 13 as the carbon reduction unit, in reduction process, can produce a spot of CO, stable within the specific limits by the control microwave power, can control CO amount that reduction section produces to lacking very.And owing to adopted step circular treatment mode, the minor by-products ozone that the oxidation panel of degradation process ionic medium precursor reactant device 1 produces in the space of relative closure, can consume automatically by the mode of degradation of organic substances and oxidation CO.By such process, NOx, CO, ozone are all finally eliminated.
Among the utility model embodiment, be installed on anion net 4 in the housing 7, flow field, the temperature field of causing by microwave itself and microwave act on anion net 4, can produce a large amount of anions.When the adsorbent bed in the clarifier was worked next time, closing door 2 was opened, and these anions will be released to indoor, reached the effect of nearly step improvement room air.Certainly, also can adopt the mode of installing the negative ion device that high voltage excites, reach the effect of making anion.
It more than is the preferred forms of air cleaning unit of the present utility model; according to the disclosed content of the utility model; some identical, replacement schemes that those of ordinary skill in the art can expect apparently all fall into the protection domain of the utility model air cleaning unit.
Claims (5)
1. the auxiliary plasma catalytic air purification device of a microwave, include fillter section, the ultraviolet-sterilization section, the purification degraded section that contains the plasma-catalytic reaction member, it is characterized in that the interior purification degraded section of housing (7) that is installed in relative closure also includes absorbing unit, microwave generating unit, carbon reduction unit; Absorbing unit, plasma-catalytic reaction member lay respectively at the bottom and the top of degraded clean-up stage.
2. the plasma catalytic air purification device that microwave according to claim 1 is auxiliary is characterized in that, described absorbing unit adopts porous carbonaceous or polymeric adsorbant (6).
3. the plasma catalytic air purification device that microwave according to claim 1 is auxiliary, it is characterized in that, described plasma-catalytic reaction member is selected dielectric barrier filling bed type reactor (1) for use, the reaction tube of described reactor (1) includes two sections, leading portion is filled the Woelm Alumina or the barium titanate bead (12) of coated with nano titanium deoxide catalyst in the pipe, back segment filler particles shape carbonaceous material (13) in its pipe; Described reactor (1) outside is specifically designed to poroid external electrode of rectangular grid (10) or coiling electrode.
4. the plasma catalytic air purification device that microwave according to claim 1 is auxiliary is characterized in that described fillter section can adopt elementary, middle and high tertiary filter to be arranged in order mode, and described high efficiency particulate air filter adopts the HEPA filter.
5. according to claim 1 or the auxiliary plasma catalytic air purification device of 2 or 3 or 4 described microwaves, it is characterized in that, can install anion net (4) in the housing (7) of described purification degraded section, or install the anion generating unit that high voltage excites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066842 CN2847126Y (en) | 2005-11-01 | 2005-11-01 | Microwave auxiliary plasma catalytic air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066842 CN2847126Y (en) | 2005-11-01 | 2005-11-01 | Microwave auxiliary plasma catalytic air purifier |
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| Publication Number | Publication Date |
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| CN2847126Y true CN2847126Y (en) | 2006-12-13 |
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| CN 200520066842 Expired - Lifetime CN2847126Y (en) | 2005-11-01 | 2005-11-01 | Microwave auxiliary plasma catalytic air purifier |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427182C (en) * | 2005-11-01 | 2008-10-22 | 深圳清华大学研究院 | Microwave assisted plasma catalytic air purification method and purification device |
| CN105402812A (en) * | 2015-12-14 | 2016-03-16 | 广东志高空调有限公司 | Air conditioner based on plasma and negative ion air purifying technology |
| CN105688523A (en) * | 2016-03-23 | 2016-06-22 | 中山大学 | Plasma purifier for exhaust gas of automobile 4S shop |
| CN106268302A (en) * | 2016-08-29 | 2017-01-04 | 四川环翔科技有限责任公司 | Packed bed plasma-catalytic depurator |
| CN106890564A (en) * | 2017-02-16 | 2017-06-27 | 浙江大学 | The method for the treatment of industrial waste gas integrated apparatus and treatment industrial waste gas based on multi-layer plate-type |
| CN109330796A (en) * | 2018-09-21 | 2019-02-15 | 夏金雪 | A kind of intensive care unit bacteriological protection infection device |
| TWI772862B (en) * | 2019-09-09 | 2022-08-01 | 大陸商北京北方華創微電子裝備有限公司 | Plasma system and associated filter device |
-
2005
- 2005-11-01 CN CN 200520066842 patent/CN2847126Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427182C (en) * | 2005-11-01 | 2008-10-22 | 深圳清华大学研究院 | Microwave assisted plasma catalytic air purification method and purification device |
| CN105402812A (en) * | 2015-12-14 | 2016-03-16 | 广东志高空调有限公司 | Air conditioner based on plasma and negative ion air purifying technology |
| CN105688523A (en) * | 2016-03-23 | 2016-06-22 | 中山大学 | Plasma purifier for exhaust gas of automobile 4S shop |
| CN106268302A (en) * | 2016-08-29 | 2017-01-04 | 四川环翔科技有限责任公司 | Packed bed plasma-catalytic depurator |
| CN106890564A (en) * | 2017-02-16 | 2017-06-27 | 浙江大学 | The method for the treatment of industrial waste gas integrated apparatus and treatment industrial waste gas based on multi-layer plate-type |
| CN109330796A (en) * | 2018-09-21 | 2019-02-15 | 夏金雪 | A kind of intensive care unit bacteriological protection infection device |
| TWI772862B (en) * | 2019-09-09 | 2022-08-01 | 大陸商北京北方華創微電子裝備有限公司 | Plasma system and associated filter device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20081022 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |