CN101785872A - Air purification part and device with air self-purification function - Google Patents

Air purification part and device with air self-purification function Download PDF

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Publication number
CN101785872A
CN101785872A CN201010107307A CN201010107307A CN101785872A CN 101785872 A CN101785872 A CN 101785872A CN 201010107307 A CN201010107307 A CN 201010107307A CN 201010107307 A CN201010107307 A CN 201010107307A CN 101785872 A CN101785872 A CN 101785872A
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air
ozone
cleaning member
unit
air cleaning
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张彭义
张博
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Tsinghua University
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Tsinghua University
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Abstract

The invention discloses an air purification part, which comprises a filtering unit used for filtering polluted air, a catalyzing and degrading unit capable of generating ozone and carrying out a light-catalyzed reaction so as to catalyze and degrade the filtered air, and an ozone decomposition and purification unit used for purifying the ozone in the catalyzed and degraded air and releasing the purified air. The invention further discloses a device with an air self-purification function. The air purification part and the device fully develop the advantages of the low energy consumption and high degradation rate of vacuum ultraviolet catalysis, fully degrade the polluted air and perform advanced purification on secondary pollutants and unnecessary ozone produced by the polluted air in combination with ozone catalyzing and degrading technology, thereby reducing the damage of the polluted air to the environment and providing a more healthier working environment for workers.

Description

Air cleaning member and have the device of air self-purification function
Technical field
The present invention relates to the air purifying process field, especially relate to a kind of air cleaning member and have the device of air self-purification function.
Background technology
Chemical pollutant in the room air produces harm to health, even the volatile organic matter of low concentration (VOCs) also can cause the generation of urgency/chronic disease, benzene, formaldehyde, trichloroethane, trichloroethylene, Polychlorinated biphenyls (PCB) have been confirmed to be carcinogen.Therefore, clearly stipulated the minimum limit value of multiple air pollutants in China " IAQ (indoor air quality) standard (GB/T18883-2002) ".And some special microenvironments, as places such as chemical laboratory, biology laboratory, medical laboratory and hospitals, airborne volatile organic contaminant concentration and kind are far above general place, its polluter mainly comes from depositing in a large number of chemical drugs, reagent and frequently uses, many abnormal flavour and harmful substance continuously towards periphery in the surrounding air volatilization discharge, the staff of long term exposure in this environment physical and mental health is caused serious harm.
Air pollution can be divided into physical pollution, chemical contamination and biologic contamination three major types, control to hospital, medical laboratory, these class place air pollutants of biochemical laboratory, from nearly 10 years bibliographical information, mainly be control to physical pollution (as: radiation, vibration etc.) and biologic contamination (as: virus, fungus etc.), report to chemical contamination control is rarely found, and corresponding precautionary measures seldom.And common common organic pollution, for example benzene,toluene,xylene etc. is but threatening medical worker and patient's health.For example, the department of stomatology in hospital, methyl methacrylate, formaldehyde cresol formocresol, Oleum Ocimi Gratissimi, enzyme phenolic aldehyde liquid is that oral anesthestia and tooth are repaired common chemical reagent, these medicaments have hypotoxicity, the characteristics of high volatile volatile and strong and stimulating abnormal smells from the patient, depositing and taking the complicated pollutant system of formation in the room air that evaporate in the allocation process, the normal ultraviolet sterilization that adopts of hospital in addition, in the disinfecting process, these materials issue at ultraviolet radiation and estrangedly separate and react, generate the secondary pollution of different toxicity and abnormal flavour, form more complicated pollutant system, the health of serious harm medical worker.Therefore be necessary to reduce these medicines deposit with use in volatilization, diffusion in room air.
For reduce chemical drugs, reagent deposit with use in to air volatilization diffusion, in places such as chemical laboratory and reagent storages, usually take chemical drugs and reagent storage in cabinet, and in fume hood, take measures such as allotment with sealing, lucifuge function.Airtight depositing easily caused gas pollutant excessive concentration in the local space, medicine take in the process cabinet door repeatedly switch the access person is in the highly polluted environment short time, simultaneously these pollutant can't be diffused in the surrounding air with avoiding, become one of primary pollution source of room air pollution.
Chinese patent CN201243782 discloses a kind of medical drugs cabinet of taking a breath, constituted by cabinet, cabinet door and air exchanging apparatus and gas exchange pipeline, the air exchange pipeline is made by metal or engineering plastics, air exchanging apparatus is installed in the inner correct position of cabinet, and above cabinet, be provided with gas exchange passage and cabinet inside and be provided with air exchanging apparatus and be connected and communicate, during use, directly open air exchanging apparatus, need ventilation to open at any time, need to end to close at any time.Chinese patent CN1954917 also discloses a kind of medical cupboard that has sealing device.It is by cabinet, obturator between cabinet door and cabinet, the cabinet door constitutes, and on cabinet or cabinet door, be provided with gas turnover valve as required, cabinet inside is provided with heat exchanger, heat exchanger on this medical cupboard can link to each other with refrigeration machine, constitute refrigerator, cabinet is made by adiabator, and is mainly used in the various chemicals of storage.But these two patents all adopt ventilation to reduce the pollutant levels local space in, and this is the process that pollutant shift, and does not reach the purpose of the real purification of dusty gas.
Operations such as high volatility, abnormal flavour, deleterious chemicals generally use in fume hood, allotment, fume hood by suction function with indoor gas suction ventilation pipeline and be discharged into outdoor, the circulation of realization room air reaches the purpose of improving IAQ (indoor air quality).But the installation of fume hood is strict to the building structure in room, requires to be fixedly mounted on usually to close on constructure ventilation pipeline place, and can't move as required.Chinese patent CN2148603 and CN2355822 disclose a kind of noxious substance safety operation platform respectively, pass through fan action, make and discharge non-toxic gas after the volatilization toxic gas adsorbs after filtration when operating in the case, and the negative pressure shape recyclegas that forms vertical laminar flow in the case does not harm the preceding staff of gathering hole, and is free from environmental pollution yet.Chinese patent CN201329286 also discloses a kind of dangerous things safety operation platform, be provided with a collecting chamber in this operation stage body, collecting chamber one end is connected with operating table surface, be connected by ventilation shaft between the other end and the ventilation and negative pressure ventilation machine, avoid the further diffusion of hazardous particle and the volatilization of poisonous substances to a certain extent, reduced the danger of tumor pharmacy staff occupational exposure.These two kinds of methods also only are that pollutant are transferred to adsorbent or transferred to other space.
The VUV photocatalysis technology is one of effective method in the present vapor phase contaminants degradation technique, has advantages such as the efficient of removal height, energy consumption are low, long service life.The exploitation that relevant research and patent achievement mostly concentrate on the novel photocatalysis agent prepares and various novel reaction Design of device, but still this technology is not used for the product or the application of special environment pollutant removal.Simultaneously, the VUV photocatalysis technology also has its weak point, may have secondary pollution in the product of catalytic degradation, and ozone concentration may exceed standard in the tail gas of discharging.
Summary of the invention
In view of this, the present invention need provide a kind of air cleaning member, and described air cleaning member can carry out deep purifying to contaminated air, and simple in structure, easily manufactured.The present invention also needs to provide a kind of device with air self-purification function in addition, described device with air self-purification function can reduce or the pollution abatement air to the harm of environment, provide more healthy working environment to the staff.
According to one embodiment of present invention, provide a kind of air cleaning member.Described air cleaning member comprises: filter element is used to filter contaminated air; Catalytic degradation unit, described catalytic degradation unit can produce ozone and carry out light-catalyzed reaction, so that the air that is filtered is carried out catalysis and degraded; And ozone decomposing, purifying unit, described ozone decomposing, purifying unit is used to purify the airborne ozone by catalysis and degraded, and discharges the air that is cleaned.
According to one embodiment of present invention, described air cleaning member further comprises: air driven unit, described air driven unit are used to drive air and flow.
According to one embodiment of present invention, described catalytic degradation unit comprises: the ultraviolet transmitter unit, but described ultraviolet transmitter unit emission wavelength is less than the ultraviolet of 200nm, to produce ozone; And photocatalyst layer, described photocatalyst layer and the adjacent setting of described ultraviolet transmitter unit are so that ozone carries out ozone-light-catalyzed reaction in ultraviolet light diarrhea photoactivation agent.
According to one embodiment of present invention, described photocatalyst is a titanium dioxide, noble metal, cation or anion-modified titanium dioxide and ZnO, WO 3, Ga 2O 3, In 2O 3And at least a in the modified light catalyst.
According to one embodiment of present invention, described ultraviolet transmitter unit is the vacuum ultraviolet low pressure mercury lamp of emission 185nm or the vacuum ultraviolet Excimer lamp of emission 172nm.
According to one embodiment of present invention, described filter element is made up of drainage screen or the formed filter course of granule filter material.
According to one embodiment of present invention, described granule filter material is active carbon, NACF, cellular activated carbon, zeolite or Vermiculitum.
According to one embodiment of present invention, described ozone decomposing, purifying unit is made up of the formed ozone decomposition catalyst of at least a material with carbon element that carries in a gold, manganese, palladium or the platinum.
According to another embodiment of the present invention, provide a kind of device with air self-purification function, having comprised: casing, described casing have to be needed the space that purifies and is formed with at least one opening; And aforesaid air cleaning member, described air cleaning member is used to purify the air in the described space describedly needing in the better purifying space, being arranged on described opening part.
According to an embodiment more of the present invention, a kind of air cleaning member is provided, comprising: main body; Be arranged on the filter element in the described main body, be used to filter contaminated air; With the catalytic degradation unit of the adjacent setting of described filter element, described catalytic degradation unit can produce ozone and carry out light-catalyzed reaction, so that the air that is filtered is carried out catalysis and degraded; And ozone decomposing, purifying unit, described ozone decomposing, purifying unit is arranged on the air outflow end and is contained in the described main body, is used to purify the airborne ozone by catalysis and degraded, and discharges the air that is cleaned.
According to above-mentioned air cleaning member of the present invention, it gives full play to the advantage that the light-catalysed energy consumption of VUV is low, degradation rate is high, dusty gas is fully degraded, combined with ozone catalytic decomposition technology is carried out deep purifying to the secondary pollution and the unnecessary ozone of its generation simultaneously, thereby reduced the harm of contaminated air, provide more healthy working environment to the staff to environment.Thus, the present invention eliminates the harmful gas that evaporate into the room air from polluting the source, improves the air quality of particular job environment such as laboratory, hospital.
In addition,,, when described air cleaning member damages, can replace thus, thereby reduce the maintenance cost of described device because described air cleaning member can replace according to the device with air self-purification function of the present invention.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 has shown the structural representation of air cleaning member according to an embodiment of the invention;
Fig. 2 has shown the structural representation according to the device with air self-purification function of the first embodiment of the present invention;
Fig. 3 has shown the vapor phase contaminants spectrogram of the air that the opening part of the device with air self-purification function shown in Fig. 2 is inside and outside;
Fig. 4 has shown the structural representation of the device with air self-purification function according to a second embodiment of the present invention;
Fig. 5 has shown the structural representation of the device with air self-purification function of a third embodiment in accordance with the invention;
Fig. 6 has shown the structural representation of the device with air self-purification function of a fourth embodiment in accordance with the invention;
Fig. 7 has shown the structural representation of the device with air self-purification function according to a fifth embodiment of the invention; And
Fig. 8 has shown the structural representation of the device with air self-purification function according to a sixth embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
Fig. 1 has shown the structural representation of air cleaning member 100 according to an embodiment of the invention.As shown in fig. 1,
Described air cleaning member 100 comprises: main body 600; Be arranged on the filter element 200 in the described main body 600, be used to filter contaminated air; With the catalytic degradation unit 300 of described filter element 200 adjacent settings, described catalytic degradation unit 300 can produce ozone and carry out light-catalyzed reaction, so that the air that is filtered is carried out catalysis and degraded; And ozone decomposing, purifying unit 400, described ozone decomposing, purifying unit 400 is arranged on the air outflow end and is contained in the described main body 600, is used to purify the airborne ozone by catalysis and degraded, and discharges the air that is cleaned.
According to one embodiment of present invention, air cleaning member 100 may further include: air driven unit 500, described air driven unit 500 are used to drive air and flow.As shown in fig. 1, described air driven unit 500 can be blower fan, and is arranged on the exit or the porch of air, to quicken the circulation of air.
According to one embodiment of present invention, described catalytic degradation unit 300 can comprise: ultraviolet transmitter unit 301, but described ultraviolet transmitter unit 301 emission wavelengths are less than the ultraviolet of 200nm, to produce ozone; And photocatalyst layer 302, described photocatalyst layer 302 and described ultraviolet transmitter unit 301 adjacent settings are so that ozone carries out ozone-light-catalyzed reaction in ultraviolet light diarrhea photoactivation agent.According to one embodiment of present invention, described photocatalyst can be titanium dioxide, noble metal, cation or anion-modified titanium dioxide and ZnO, WO 3, Ga 2O 3, In 2O 3And at least a in the modified light catalyst.According to one embodiment of present invention, described ultraviolet transmitter unit 301 is the vacuum ultraviolet low pressure mercury lamp of emission 185nm or the vacuum ultraviolet Excimer lamp of emission 172nm.According to one embodiment of present invention, described filter element 200 is made up of drainage screen or the formed filter course of granule filter material.According to one embodiment of present invention, described granule filter material can be active carbon, NACF, cellular activated carbon, zeolite or Vermiculitum.According to one embodiment of present invention, described ozone decomposing, purifying unit 400 can be formed by carrying the formed ozone decomposition catalyst of golden material with carbon element.
Describe in detail according to air cleaning member of the present invention below in conjunction with Fig. 1.For described filter element 200, dusty gas at first passes through described filter element 200 under the effect of the air driven unit 500 of the blower fan that for example is installed in open side.Filter element 200 can be made up of filter courses such as drainage screen, granule filter materials.Wherein drainage screen can be basic, normal, high effect drainage screen.Described granule filter material can be the active carbon of different substrate materials such as ature of coal, coconut husk, bamboo charcoal, and also available NACF, cellular activated carbon, zeolite, Vermiculitum etc. are removed the filtrate of particulate matter.
According to one embodiment of present invention, but described catalytic degradation unit 300 mainly comprises photocatalyst layer and emission wavelength uviol lamp two parts less than 200nm.Described photocatalyst can be a titanium dioxide, noble metal, cation or anion-modified titanium dioxide, and ZnO, WO 3, Ga 2O 3, In 2O 3Have the photocatalyst of photocatalysis response performance and a photocatalyst of modification on these photocatalyst bases etc. any.Described uviol lamp can be the uviol lamp of emission wavelength less than 200nm, includes but not limited to launch the vacuum ultraviolet low pressure mercury lamp of 185nm, promptly produces ozone lamp, the vacuum ultraviolet Excimer lamp of emission 172nm.
Wavelength can decompose the hydroxyl radical free radical of airborne steam, oxygen generation strong oxidizing property less than the vacuum ultraviolet (for example wavelength is the ultraviolet of 185nm) of 200nm, hydroxyl radical free radical can be with most organic pollution oxidation Decomposition in the air after just filtering, and can be oxidized to carbon dioxide to carbon monoxide, oxidation of hydrogen is a water.Wavelength is less than the vacuum ultraviolet of 200nm, produces ozone thereby can also decompose airborne oxygen as the vacuum ultraviolet of 185nm, further improves the efficient of light-catalyzed reaction.In addition, wavelength can also directly make the pollutant light degradation less than the vacuum ultraviolet (as the vacuum ultraviolet of 185nm) of 200nm.Wavelength can be subjected to the trapping agent of the electronics of optical excitation generation as photocatalyst less than the ozone that vacuum ultraviolet produced of 200nm, and accelerates light-catalyzed reaction.Ozone also can be decomposed the generation active oxygen once more by ultraviolet, and active oxygen and water molecule reaction produce hydroxyl radical free radical again, and active oxygen, hydroxyl radical free radical all can be directly and pollutant reaction, purify air.
Ozone decomposing, purifying unit 400 mainly is made up of the ozone decomposition catalyst of carbon material supported noble metal preparation, promptly can be formed by being loaded onto few wherein a kind of gold, manganese, palladium or the formed ozone decomposition catalyst of platinum material with carbon element.Need to prove that any material that can be used for catalytic degradation ozone may be used to form above-mentioned ozone decomposing, purifying unit 400, above-mentioned only for exemplary purposes, rather than in order to limit protection scope of the present invention.,, be used for further removing degrade residual thing, secondary product and residual ozone, thereby reach the purpose that purifies air by described ozone decomposing, purifying unit 400 through the air after 300 processing of described catalytic degradation unit by absorption and catalytic degradation effect.
The air self-purification device comprises: casing, described casing have to be needed the space that purifies and is formed with at least one opening; And foregoing air cleaning member, described air cleaning member is used to purify the air in the described space describedly needing in the better purifying space, being arranged on described opening part.Need to prove that this device can be for any equipment (will be elaborated below) that needs cleaning air in it,, wherein need to carry out airfiltering opening part as long as this air cleaning member is installed to according to the present invention.
Describe in detail according to various devices with air self-purification function of the present invention with reference to Fig. 2-8 below, wherein Fig. 2 has shown the structural representation according to the device with air self-purification function of the first embodiment of the present invention; Fig. 3 has shown the vapor phase contaminants spectrogram of the air that the opening part of the device with air self-purification function shown in Fig. 2 is inside and outside; Fig. 4 has shown the structural representation of the device with air self-purification function according to a second embodiment of the present invention; Fig. 5 has shown the structural representation of the device with air self-purification function of a third embodiment in accordance with the invention; Fig. 6 has shown the structural representation of the device with air self-purification function of a fourth embodiment in accordance with the invention; Fig. 7 has shown the structural representation of the device with air self-purification function according to a fifth embodiment of the invention; And Fig. 8 has shown the structural representation of the device with air self-purification function according to a sixth embodiment of the invention.
Need to prove that for succinct purpose, installation of the present invention is very simple, identical or close among NM technical characterictic and the embodiment 1 in embodiment 2-6, thus omitted.
Embodiment 1
In the present embodiment, air cleaning member 100 is applied to for example device with air self-purification function 700 of medical cupboard, described medical cupboard 700 upper ends have opening, and described air cleaning member 100 is installed in the top of medical cupboard 700, form air purification type medical cupboard, as shown in Figure 2 with taste removal, purification function.Can select for use axial flow blower to be used to drive circulation of air in the described air cleaning member 100, purified gas is directly discharged from the top of medical cupboard from the bottom to top.
Down, described medical cupboard 700 is carried out measure of merit in working order, air sample is gathered at the air outlet place in cabinet 800 and outside the cabinet 800 respectively, carries out gas chromatography-mass spectrometry analysis, and the result of described gas chromatography-mass spectrometry analysis is presented among Fig. 3.Shown in 3, before air cleaning member was opened, the gas chemistry substance classes that contains in the cabinet inner air was various, and the concentration height is shown in the fine rule among Fig. 3.After opening air cleaning member 100, new air admission cabinet 800, the air in the cabinet 800 is purified.The kind of the chemical substance that air contained after handling through air cleaning member 100 simultaneously and concentration all obviously will be less than air cleaning member and open the polluter that air are contained in the preceding cabinet 800.This shows that this medical cupboard 700 can not only guarantee air quality in the medical cupboard, can guarantee outwards discharging simultaneously or to the quality of room air air discharged.
Embodiment 2
Air cleaning member 100 according to an embodiment of the invention is applied to chemical laboratory fume hood 1700, and installs roller 1900 additional, form packaged type fume hood 1700, as shown in Figure 4.It is characterized in that need not being connected, can arbitrarily move to not chummery and place according to action need with the constructure ventilation road.
Embodiment 3
In the present embodiment, air cleaning member 100 is applied to the laboratory operation platform, can forms clean flavor operating board 2700, as shown in Figure 5.Air cleaning member 100 is installed at the bottom of clean flavor operating board 2700, adopts for example air driven unit of centrifugal blower 2500, purified gas is discharged respectively from the both sides of clean flavor operating board 2700.
Embodiment 4
In the present embodiment, with described air cleaning member 100 and integral cabinet coupling, install two air cleaning members 100 respectively additional in the cabinet both sides, form tasteless purification type integral cabinet 3700, as shown in Figure 6, need to prove that the quantity of air cleaning member 100 can be set according to the number of these tasteless purification type integral cabinet 3700 upper sheds, to realize purification fully to air in it.
Embodiment 5
In the present embodiment,, form tasteless medicament cabinet, as shown in Figure 7, select cross-flow fan for use, purification back gas is discharged by the cabinet rear portion air cleaning member 100 and for example medicament cabinet coupling at hospital, place, pharmacy.
Embodiment 6
In the present embodiment, air cleaning member 100 is installed in the small box, forms portable drug and take case 5700, as shown in Figure 8.In the present embodiment, select for use cross-flow fan to be used as air driven of the present invention unit, purification back gas is discharged by the cabinet rear portion.This portable drug is taken case 5700 and be can be placed on the work top of surgeon dentist, makes the doctor when taking, allocating the bigger medicament of abnormal flavour, and the gas with foreign flavor that volatilizes is got rid of by air cleaning member 100, reduces the volatilization in room air.
According to aforesaid device of the present invention with air self-purification function, by above-mentioned air cleaning member is combined with locker, storing platform or working place, storing platform, working place include but not limited to chemical drugs cabinet, laboratory fume hood, laboratory operation platform, hospital pharmacy cabinet, kitchen cabinet etc.Size according to the described air cleaning member 100 of the size adjustment of locker/platform, working place, by pollutant levels, kind, complexity optimized air cleaning member each unitary composition and running parameter, for example select different capacity, different types of air driven unit by unit interval demand of processing quantity and air flow direction requirement, for example blower fan (as axial flow blower, centrifugal blower or crossflow fan) is formed the air cleaning member 100 that satisfies different user demands.Described air cleaning member 100 can be installed in the diverse location of locker/platform, working place, for example upside of casing, downside, left side, right side, front side or rear side etc. as required.
Thus, air cleaning member 100 of the present invention and use its device with air self- purification function 700,1700,2700,3700,4700,5700 can be under normal temperature and pressure conditions to have the abnormal flavour, the harmful substance that are produced in the device of air self-purification function and purify to described, thereby keep the purification of air in the described device with air self-purification function, make institute's air discharged not pollute the environment simultaneously.
Any mentioning " embodiment ", " embodiment ", " illustrative examples " etc. mean concrete member, structure or the characteristics described in conjunction with this embodiment and are contained among at least one embodiment of the present invention.Not necessarily refer to identical embodiment in this schematic statement everywhere of this description.And when describing concrete member, structure or characteristics in conjunction with any embodiment, what advocated is, realizes that in conjunction with other embodiment such member, structure or characteristics all drop within those skilled in the art's the scope.
Although the specific embodiment of the present invention is described in detail with reference to a plurality of illustrative examples of the present invention, but it must be understood that, those skilled in the art can design multiple other improvement and embodiment, and these improve and embodiment will drop within the spirit and scope.Particularly, within the scope of aforementioned open, accompanying drawing and claim, can make rational modification and improvement aspect the layout of parts and/or subordinate composite configuration, and can not break away from spirit of the present invention.Except the modification and the improvement of parts and/or layout aspect, its scope is limited by claims and equivalent thereof.

Claims (11)

1. air cleaning member comprises:
Filter element is used to filter contaminated air;
Catalytic degradation unit, described catalytic degradation unit can produce ozone and carry out light-catalyzed reaction, so that the air that is filtered is carried out catalysis and degraded; And
Ozone decomposing, purifying unit, described ozone decomposing, purifying unit is used to purify the airborne ozone by catalysis and degraded, and discharges the air that is cleaned.
2. air cleaning member according to claim 1 further comprises: air driven unit, described air driven unit are used to drive air and flow.
3. air cleaning member according to claim 1 is characterized in that, described catalytic degradation unit comprises:
The ultraviolet transmitter unit, but described ultraviolet transmitter unit emission wavelength is less than the ultraviolet of 200nm, to produce ozone; And
Photocatalyst layer, described photocatalyst layer and the adjacent setting of described ultraviolet transmitter unit are so that ozone carries out ozone one light-catalyzed reaction in ultraviolet light diarrhea photoactivation agent.
4. air cleaning member according to claim 3 is characterized in that, described photocatalyst is a titanium dioxide, noble metal, cation or anion-modified titanium dioxide and ZnO, WO 3, Ga 2O 3, In 2O 3And at least a in the modified light catalyst.
5. air cleaning member according to claim 3 is characterized in that, described ultraviolet transmitter unit is the vacuum ultraviolet low pressure mercury lamp of emission 185nm or the vacuum ultraviolet Excimer lamp of emission 172nm.
6. air cleaning member according to claim 1 is characterized in that, described filter element is made up of drainage screen or the formed filter course of granule filter material.
7. air cleaning member according to claim 6 is characterized in that, described granule filter material is active carbon, NACF, cellular activated carbon, zeolite or Vermiculitum.
8. air cleaning member according to claim 1 is characterized in that, described ozone decomposing, purifying unit is made up of the formed ozone decomposition catalyst of at least a material with carbon element that carries in gold, palladium, manganese or the platinum.
9. device with air self-purification function comprises:
Casing, described casing have to be needed the space that purifies and is formed with at least one opening; And
Air cleaning member as claimed in claim 1, described air cleaning member is used to purify the air in the described space describedly needing in the better purifying space, being arranged on described opening part.
10. the device of air self-purification function according to claim 9 is characterized in that, described device is formed medical cupboard, laboratory fume hood, distinguish the flavor of operating board, integral cabinet or portable drug taken a kind of in the case only.
11. an air cleaning member comprises:
Main body;
Be arranged on the filter element in the described main body, be used to filter contaminated air;
With the catalytic degradation unit of the adjacent setting of described filter element, described catalytic degradation unit can produce ozone and carry out light-catalyzed reaction, so that the air that is filtered is carried out catalysis and degraded; And
Ozone decomposing, purifying unit, described ozone decomposing, purifying unit is arranged on the air outflow end and is contained in the described main body, is used to purify the airborne ozone by catalysis and degraded, and discharges the air that is cleaned.
CN201010107307A 2010-02-09 2010-02-09 Air purification part and device with air self-purification function Pending CN101785872A (en)

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CN102000354A (en) * 2010-10-26 2011-04-06 天津泰达环保有限公司 High-efficiency indoor stink purification method
CN103055340A (en) * 2012-10-25 2013-04-24 郦宏 Deodorization system of waste transfer station
CN103267321A (en) * 2013-05-30 2013-08-28 深圳中元宏康科技有限公司 Operating room air purifying system
CN103861858A (en) * 2014-03-12 2014-06-18 亿丰洁净科技江苏股份有限公司 Green ventilation cabinet for laboratory
CN104913387A (en) * 2015-05-29 2015-09-16 广东美的制冷设备有限公司 Filtration component and air conditioner
CN105509151A (en) * 2015-12-31 2016-04-20 天津市天朝鼎盛环保科技有限公司 Novel air purifying device
CN105887157A (en) * 2016-05-13 2016-08-24 中环清新人工环境工程技术(北京)有限责任公司 Preparation method of honeycomb shaped nanometer material capable of purifying air
CN106237840A (en) * 2016-08-25 2016-12-21 北京航天环境工程有限公司 VOC exhaust treatment system
CN106237841A (en) * 2016-08-25 2016-12-21 北京航天环境工程有限公司 Organic waste gas treatment system
CN106823781A (en) * 2017-01-10 2017-06-13 清华大学 A kind of air purifier for removing indoor VOCs and preparation method thereof
CN111013355A (en) * 2019-12-30 2020-04-17 大气(广东)科技发展有限公司 Process and device for treating atmospheric combined pollution
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CN102000354A (en) * 2010-10-26 2011-04-06 天津泰达环保有限公司 High-efficiency indoor stink purification method
CN103055340A (en) * 2012-10-25 2013-04-24 郦宏 Deodorization system of waste transfer station
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Application publication date: 20100728