CN1328550C - Light and source catalytic air sterilizing and purifying device for ventilation system of central air conditioner - Google Patents
Light and source catalytic air sterilizing and purifying device for ventilation system of central air conditioner Download PDFInfo
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- CN1328550C CN1328550C CNB2005100962093A CN200510096209A CN1328550C CN 1328550 C CN1328550 C CN 1328550C CN B2005100962093 A CNB2005100962093 A CN B2005100962093A CN 200510096209 A CN200510096209 A CN 200510096209A CN 1328550 C CN1328550 C CN 1328550C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The present invention relates to an air sterilization and purification device with light and sound catalysis for a ventilation system of a central air conditioner. A casing, an ultrasonic generator and a speed regulation motor are arranged on a bracket, wherein one side at the upper part of the casing is provided with a wind inlet pipe connected with the casing into a whole, and the other side is provided with a wind outlet pipe connected with the casing into a whole; a photocatalysis component for the wind inlet pipe, which is provided with an ultraviolet lamp for the wind inlet pipe, is arranged in the wind inlet pipe; a photocatalysis component for the wind outlet pipe, which is provided with an ultraviolet lamp for the wind outlet pipe, is arranged in the wind outlet pipe; a photocatalysis wind wheel is arranged between the ultraviolet lamp for the wind inlet pipe and the ultraviolet lamp for the wind outlet pipe at the upper part of the casing, and is connected with the speed regulation motor by a transmission mechanism; the lower part in the casing is provided with purged liquor and an ultraviolet lamp for the purged liquor, and the ultraviolet lamp for the purged liquor is immersed in the purged liquor; a side wall in the casing is provided with a liquor level indicator; one side at the upper part of the side wall of the casing is provided with a water filling pipe, and the other side is provided with a cleaning pipe; an ultrasonic energy converter connected with the ultrasonic generator by a conducting wire is arranged in the purged liquor and on the side wall in the casing; the bottom in the casing is provided with a water discharge valve communicated with the inside of the casing.
Description
Technical field
The invention belongs to from the allocation units of one or more central stations in room that can obtain after-treatment or place and supply with through handling the air handling system technical field of primary air, the otherwise processed air that is specifically related to except heating and cooling is the purifying processing device of feature.
Technical background
The pollution of central air-conditioning has become whole world environmental pollution one big problem, cause large tracts of land " Legionella " group cross pollution owing to central air-conditioning the seventies from the U.S., cause nearly 100 people's death, the whole world is annual because report is arranged during germ cross pollution that central air-conditioning causes, central air-conditioning has become important room air pollution source, and the pollution that is caused then might cause the proliferation of germs of large tracts of land group.For this reason, China issued " IAQ standard " in 2003, and the Ministry of Public Health has also issued " public place central air-conditioning ventilating system hygienic practice ".In Ministry of Public Health's " standard " clearly the annual spring and autumn of regulation all to check the sanitary condition of public place central air-conditioning.Although from management view " central air-conditioning ventilating system hygienic practice " requirement by Ministry of Public Health's promulgation, regularly cleaning and filtering net and ventilation shaft pollute mitigation system, prevent that viral pathogen transmission diffusion from having certain effect, reside in screen pack and ducted pollutant but can only clean, and a large amount of pollutants still flows to human residential space by supply air system.Therefore, have only technically, could really solve the central air-conditioning ventilating system and pollute and potential viral pathogen transmission diffusion problem the online bactericidal purifying of ventilating system air-flow.
Central air-conditioning ventilating system air disinfection purifies the hot spot technology problem as China recent years surrounding air field of purification, has caused numerous research staff's very big interest.Chinese patent Information Network according to the retrieval, the patent of application has reached nearly hundred at present.These central air-conditioning ventilating system air disinfection cleaning equipments have two big classes substantially, and the first adopts cleaning equipments such as traditional filtration, purification, ozone sterilization purification, ultraviolet sterilization purification, electrostatic precipitation purification, active carbon adsorption.These cleaning equipments are simple relatively, have only the partial elements to air pollutants that effect is arranged, and have the low and secondary pollution problems of purification efficiency, therefore replaced by new type purification device at present.It two is to adopt to be considered to state-of-the-art nano photo catalyzed oxidation scheme at present, is 03231746,03272010,03267132,03132002,03209942 Chinese patent as the patent No..Because air quantity is big in the central air-conditioning air system plumbing, wind speed is high, though more above-mentioned patents have adopted the photocatalysis net of multilayer different structure to improve its purifying rate, just moment contacts but pollutant still fires with photochemical catalyst, can just be collided " passive adhesion " in the pollutant of catalyst surface by what photocatalytic degradation purified, purification efficiency is very low.The other patent is with the electrostatic precipitator use of connecting with photocatalysis net, though can improve the overall efficiency of purifier, but electrostatic precipitator is only effective to purifying particulate contaminants, and have secondary pollution, and still there is the low technical problem of purification efficiency recited above in photocatalysis net to the purification of pollutant.
Summary of the invention
Technical problem to be solved by this invention is to overcome the shortcoming of above-mentioned central air-conditioning air cleaning unit, provide a kind of reasonable in design, simple in structure, working service convenient, capture that the pollutant ability is strong, purification speed is fast, efficient is high, the central air-conditioning ventilating system optoacoustic catalytic air sterilization purifying device of non-secondary pollution.
Solving the problems of the technologies described above the technical scheme that is adopted is: support is provided with housing, ultrasonic generator, buncher, be provided with the blast pipe, the opposite side that are connected as a single entity and link with housing in housing top one side and be provided with the discharge pipe that is connected as a single entity and links with housing, the blast pipe photocatalysis assembly that the blast pipe uviol lamp is installed is set in blast pipe.Blast pipe photocatalysis assembly is: framework is provided with the air intake photocatalysis net.The discharge pipe photocatalysis assembly that the discharge pipe uviol lamp is installed is set in discharge pipe, between housing top blast pipe uviol lamp and discharge pipe uviol lamp, is provided with the photocatalysis wind wheel.The photocatalysis wind wheel is: 6～12 circumference in equal parts and the skeleton that the wind wheel photocatalysis net is installed radially being provided with of turning cylinder.The photocatalysis wind wheel links by transmission mechanism and buncher.The bottom is provided with scavenging solution and is immersed in scavenging solution uviol lamp and ultrasonic transducer in the scavenging solution in housing, and ultrasonic transducer is connected with ultrasonic generator by lead.Sidewall in the housing is provided with fluid level indicator, is provided with water injection pipe in side wall upper part one side of housing, opposite side is provided with scavenge pipe, the bottom in housing be provided with housing in the discharging valve that links.
Air intake photocatalysis net of the present invention is the nano-TiO that the surface is coated with anatase crystal
240 or 50 order stainless (steel) wires, the wind wheel photocatalysis net is the nano-TiO that the surface is coated with anatase crystal
240 or 50 or 60 order stainless (steel) wires.
The structure of discharge pipe photocatalysis assembly of the present invention is identical with the structure of blast pipe photocatalysis assembly.
The wavelength of blast pipe uviol lamp of the present invention is 254nm, and the wavelength of discharge pipe uviol lamp 7 and scavenging solution uviol lamp is 365nm.
The supersonic frequency of ultrasonic transducer of the present invention is 40～60KHz, and power is 40～50W.
Scavenging solution of the present invention is by H
2O
2Being mixed with concentration with pure water is 1～2% H
2O
2The aqueous solution.
The present invention has adopted the photocatalysis wind wheel, and the scavenging solution of photocatalysis wind wheel surface absorption significantly strengthens the ability of its adhered particles shape pollutant and absorption pernicious gas, and the wind wheel of photocatalysis is simultaneously constantly transferred to pollutant in the scavenging solution.Because the photocatalysis wind wheel rotates the liquid disturbance that causes, the wind wheel photocatalysis net surface of producing liquid level is maintained in the clean condition, and has guaranteed to adsorb once more pollutant and nano-TiO
2Contact closely makes purifier both efficiently capture pollutant, has guaranteed that again pollutant is at nano-TiO
2Effective enrichment of photocatalyst surface.During wind wheel rotates simultaneously the air of surface absorption is brought in the scavenging solution, sufficient oxygen is provided for the light-catalyzed reaction in the scavenging solution, produce beneficial effect strengthening the ultrasonic cavitation effect.At the photocatalysis wind wheel when pollutant directly carries out photocatalytic degradation in to chimneying, remove and degraded transferring to ultrasonic the killing that pollutant in the scavenging solution carries out photocatalytic degradation and interruption synchronously.The present invention is provided with the blast pipe uviol lamp between blast pipe photocatalysis net and photocatalysis wind wheel, as nano-TiO on blast pipe photocatalysis net and the wind wheel photocatalysis net
2Exciting light, when the germ that swims in the deacration is killed in radiation, produce ozone, the ozone of wind wheel photocatalysis net surface absorption, can effectively capture the light induced electron of catalyst surface, the simple composite that has suppressed light induced electron and hole has improved its quantum efficiency, makes nano-TiO
2The ability of photocatalytic degradation pollutant significantly strengthens.The present invention adopts water and H
2O
2Mixing is as scavenging solution, the H in the adsorption cleaning liquid of wind wheel photocatalysis net surface
2O
2, can effectively capture the light induced electron of catalyst surface equally, suppressed the simple composite in light induced electron and hole, improved its quantum efficiency, kill and remove degraded being brought into germ in the scavenging solution and pernicious gas simultaneously.That the present invention has is reasonable in design, simple in structure, working service convenient, capture strong, the advantages such as purification speed is fast, efficient is high, non-secondary pollution of pollutant ability, can in the central air-conditioning ventilating system, be used for air disinfection and purify, also can be formed in the independent air cleaning unit that is suitable in subway, tunnel, emporium, the cinema.
Description of drawings
Fig. 1 structural representation of the present invention.
Fig. 2 is the structural representation of air inlet pipe photocatalysis net 3 among Fig. 1.
Fig. 3 is the structural representation of photocatalysis wind wheel 5 among Fig. 1.
The specific embodiment
The present invention is described in more detail below in conjunction with drawings and Examples, but the invention is not restricted to these embodiment.
Embodiment 1
In Fig. 1, the central air-conditioning ventilating system optoacoustic catalytic air sterilization purifying device of present embodiment is to be connected by blast pipe 1, housing 2, blast pipe photocatalysis assembly 3, blast pipe uviol lamp 4, photocatalysis wind wheel 5, discharge pipe 6, discharge pipe uviol lamp 7, discharge pipe photocatalysis assembly 8, cleaning valve 9, ultrasonic transducer 10, scavenging solution uviol lamp 11, support 12, ultrasonic generator 13, buncher 14, belt 15, discharging valve 16, Liquid level scale 17, scavenging solution 18, liquid-filling valve 19 to constitute.
On support 12, be installed with housing 2, ultrasonic generator 13, buncher 14 with the screw threads for fastening connector.Housing both sides, 2 top and housing 2 are connected as a single entity and link and be connected with blast pipe 1 and discharge pipe 6, and housing 2 and blast pipe 1 and discharge pipe 6 are that plastic plate or the fiberglass big by intensity, that resistance to acids and bases is good is made.Blast pipe photocatalysis assembly 3 is installed in blast pipe 1, and the contaminated air that 3 pairs of blast pipe photocatalysis assemblies enter in the present invention carries out primary purifying.
In Fig. 1,2, the blast pipe photocatalysis assembly 3 of present embodiment is to be connected by framework 3-1, air intake photocatalysis net 3-2 to constitute, and air intake photocatalysis net 3-2 is fixedly mounted on the framework 3-1, and air intake photocatalysis net 3-2 is the nano-TiO that 40 order surfaces are coated with anatase crystal
2Stainless (steel) wire, 2 blast pipe uviol lamps 4 are installed on framework 3-1, the wavelength of blast pipe uviol lamp 4 is 254nm.The ultraviolet light that blast pipe uviol lamp 4 is launched feeds honourable catalysis net 3-2 and goes up nano-TiO
2Exciting light is provided, and the germ that swims in the deacration is killed in radiation simultaneously, and produces ozone.Discharge pipe photocatalysis assembly 8 is installed in discharge pipe 6, and the structure and the blast pipe photocatalysis assembly 3 of discharge pipe photocatalysis assembly 8 are identical, and discharge pipe photocatalysis assembly 8 is used for the residual contaminants of deacration extremely.2 discharge pipe uviol lamps 7 are installed on discharge pipe photocatalysis assembly 8, and the wavelength of discharge pipe uviol lamp 7 is 365nm.The ultraviolet light that discharge pipe uviol lamp 7 is launched is given nano-TiO on the discharge pipe photocatalysis assembly 8
2Exciting light is provided, and the germ that swims residual in the deacration is killed in radiation simultaneously.Top in housing 2 is equipped with photocatalysis wind wheel 5, and photocatalysis wind wheel 5 links by belt 15 and buncher 14, drives 5 rotations of photocatalysis wind wheel by buncher 14.
In Fig. 1,3, the photocatalysis wind wheel 5 of present embodiment is to be connected by turning cylinder 5-1, skeleton 5-2, wind wheel photocatalysis net 5-3 to constitute.Radially be installed with 8 skeleton 5-2 at turning cylinder 5-1 with the screw threads for fastening connector is uniform, on each skeleton 5-2, be installed with wind wheel photocatalysis net 5-3, skeleton 5-2 and wind wheel photocatalysis net 5-3 constitute the wind wheel blade of photocatalysis wind wheel 5, and wind wheel photocatalysis net 5-3 is the stainless (steel) wire that 60 order surfaces are coated with the nano TiO 2 of anatase crystal.Photocatalysis wind wheel 5 tops are manufactured with circular arc in the housing 2, and the chord length of circular arc is 1.2 times of adjacent two wind wheel blade outer edge distances, and the distance between the outer edge of wind wheel blade and housing 2 are interior is 0.5mm.Just in time between blast pipe uviol lamp 4 and discharge pipe uviol lamp 7, the ultraviolet light that blast pipe uviol lamp 4 and discharge pipe uviol lamp 7 are produced goes up nano-TiO for wind wheel photocatalysis net 5-3 to photocatalysis wind wheel 5
2Exciting light is provided, and the germ that swims in the deacration is killed in radiation simultaneously, and blast pipe uviol lamp 4 produces ozone simultaneously, the ozone of wind wheel photocatalysis net 5-3 absorption can effectively be captured the electronics of catalyst surface, thereby suppresses the simple composite in light induced electron and hole, improved its quantum efficiency, made nano-TiO
2The ability of photocatalytic degradation pollutant significantly strengthens.
Scavenging solution 18 is equipped with in bottom in housing 2, and the scavenging solution 18 of present embodiment is by H
2O
2Being mixed with concentration with pure water is 1.5% H
2O
2The aqueous solution, the liquid level of scavenging solution 18 should be with the wind wheel blade submergence under the photocatalysis wind wheel 5 turning cylinder 5-1, during 5 rotations of photocatalysis wind wheel, makes the pollutant on the wind wheel photocatalysis net 5-3 be brought in the scavenging solution 18 H in the scavenging solution 18
2O
2The pollutant that enters in the scavenging solution 18 is carried out sterilization.Lower sides in housing 2 is equipped with 4 scavenging solution uviol lamps 11, scavenging solution uviol lamp 11 is immersed in the scavenging solution 18, the wavelength of scavenging solution uviol lamp 11 is 365nm, is used to launch ultraviolet light, and the ultraviolet light of being launched goes up nano-TiO for the wind wheel photocatalysis net 5-3 that invades in the scavenging solution 18
2Exciting light is provided.Lower sides in housing 2 also is installed with ultrasonic transducer 10 with the screw threads for fastening connector, and ultrasonic transducer 10 links to each other with ultrasonic generator 13 by lead.The supersonic frequency of ultrasonic transducer 10 is that 40KHz, power are 40W, ultrasonic wave kills and removes and degraded being brought into germ in scavenging solution 17 pollutants and pernicious gas, simultaneously wind wheel photocatalysis net 5-3 surface be can clean, pollutant and nano-TiO guaranteed to adsorb once more
2Direct contact, the present invention is efficiently captured pollutant, guaranteed that pollutant is at nano-TiO
2Effective enrichment of photocatalyst surface is brought the air of surface absorption in the scavenging solution 18 into during photocatalysis wind wheel 5 rotates, and sufficient oxygen is provided for the light-catalyzed reaction in the scavenging solution 18, produces beneficial effect to strengthening the ultrasonic cavitation effect.
At housing 2 inwalls Liquid level scale 16 is installed, Liquid level scale 16 is an embodiment of fluid level indicator, also can adopt other fluid level indicator, as digital fluid level indicator, the fluid level indicator of pointer-type, Liquid level scale 16 is used to observe the liquid level of scavenging solution 18 in the housing 2, when the liquid level of scavenging solution 18 in the housing 2 is hanged down, can add scavenging solution 18.On the left side wall of housing 2, liquid-filling valve 19 is installed by thread connection, liquid-filling valve 19 is used for adding or adding scavenging solution 18 in housing 2, by screw thread cleaning valve 9 is installed on the right side wall of housing 2, when cleaning in the housing 2 with running water, cleaning valve 9 links with running water pipe.In the lower end of housing 2 discharging valve 16 is installed, the scavenging solution 18 in the housing 2 will be emitted from discharging valve 16 with the addle after dirty scavenging solution 18 and the cleaning after using after a while.
Embodiment 2
In the present embodiment, air intake photocatalysis net 3-2 is the nano-TiO that 40 order surfaces are coated with anatase crystal
2Stainless (steel) wire, discharge pipe photocatalysis assembly 8 is identical with the structure of blast pipe photocatalysis assembly 3.Photocatalysis wind wheel 5 is radially to be installed with 6 skeleton 5-2 with the screw threads for fastening connector is uniform at turning cylinder 5-1, on each skeleton 5-2, be installed with wind wheel photocatalysis net 5-3, skeleton 5-2 and wind wheel photocatalysis net 5-3 constitute the wind wheel blade of photocatalysis wind wheel 5, and wind wheel photocatalysis net 5-3 is the nano-TiO that 50 order surfaces are coated with anatase crystal
2Stainless (steel) wire.Scavenging solution 18 is equipped with in bottom in housing 2, and scavenging solution 18 is by H
2O
2Being mixed with concentration with pure water is 1% H
2O
2The aqueous solution.The frequency of ultrasonic that the ultrasonic transducer of installing on the lower sides in housing 2 11 produces is 60KHz, and power is 50W.The connecting relation of other parts and parts is identical with embodiment 1.
In the present embodiment, air intake photocatalysis net 3-2 is the nano-TiO that 50 order surfaces are coated with anatase crystal
2Stainless (steel) wire, discharge pipe photocatalysis assembly 8 is identical with the structure of blast pipe photocatalysis assembly 3.Photocatalysis wind wheel 5 is radially to be installed with 12 skeleton 5-2 with the screw threads for fastening connector is uniform at turning cylinder 5-1, on each skeleton 5-2, be installed with wind wheel photocatalysis net 5-3, skeleton 5-2 and wind wheel photocatalysis net 5-3 constitute the wind wheel blade of photocatalysis wind wheel 5, and wind wheel photocatalysis net 5-3 is the nano-TiO that 40 order surfaces are coated with anatase crystal
2Stainless (steel) wire.Scavenging solution 18 is equipped with in bottom in housing 2, and scavenging solution 18 is by H
2O
2Being mixed with concentration with pure water is 2% H
2O
2The aqueous solution.The frequency of ultrasonic that the ultrasonic transducer of installing on the lower sides in housing 2 10 produces is 50KHz, and power is 40W.The connecting relation of other parts and parts is identical with embodiment 1.
In the present embodiment, 1 blast pipe uviol lamp 4 is installed on framework 3-1, the structure and the blast pipe photocatalysis assembly 3 of discharge pipe photocatalysis assembly 8 are identical, and 1 discharge pipe uviol lamp 7 is installed on discharge pipe photocatalysis assembly 8.The connecting relation of other parts and parts is identical with embodiment 1.
In order to verify beneficial effect of the present invention, the central air-conditioning ventilating system optoacoustic catalytic air sterilization purifying device consignment test unit that the applicant makes the embodiment of the invention 1 has carried out the indoor purifying test, and various test situation are as follows:
One, content measurement and foundation
Air-Purification Device in Central Ventilation System, also there is not national standard at present, the purification efficiency of central air-conditioning ventilating system optoacoustic catalytic air sterilization purifying device detects, with reference to GB/T18883-2002 " IAQ standard ", GB/T17093-1997 " total number of bacteria sanitary standard in the room air ", and with reference to GB/T18801-2002 " air purifier ", adopt on-the-spot manual simulation's contaminated environment, detect its purifying rate.
Two, test environment and purifier running parameter
80m
3The room in space, temperature are 27～34 ℃, and relative humidity is 34～37%; Air outlet sectional area of the present invention is 25 * 25cm
2, at air outlet air output being installed is 720m
3The axial flow blower of/h; The rotating speed of photocatalysis wind wheel 5 of the present invention is 3 rev/mins; The supersonic frequency of ultrasonic transducer 10 is 40KHz, and power is 40W, and ultrasonic transducer 10 was every work in 20 minutes 5 minutes; Scavenging solution is that to be mixed with concentration by H2O2 and pure water be 1.5% H
2O
2The aqueous solution.
Three, laboratory apparatus and equipment
P-5L2C type micro computer dust determination instrument, green guest's wound company that reaches produces by Beijing; The portable formaldehyde assay determination of 4160 types instrument is produced by American I NTERSCAN company; 9cm ordinary nutrient agar flat board, insulating box are the commercially available prod.
Four, purifying rate computational methods
Because the experimental test period is shorter, ignores natural decay rate, purifying rate is calculated as follows:
Purifying rate=(pollutant levels before starting-operation back residual contamination substrate concentration)/pollutant levels * 100% before starting.
Five, detection method and result
1, the present invention detects indoor smoke contamination air purification effect
Detection method: with 80m
3After the ground, room in space, the wall cleaning, close the doors and windows and leave standstill 12 hours.Adopt imperfect combustion paper method generation flue dust, remove comburant, start circulating fan and stirred 5 minutes, treat that flue dust is evenly distributed, reach 3.84mg/m with dust concentration in the P-5L2C type micro computer dust determination instrument mensuration room air
3The present invention is placed the middle part, ground, start the present invention, on indoor diagonal apart from four jiaos of 1m and apart from ground 1.5m eminence and 0.5m place, top of the present invention, 5 test points are set, the 20 minutes concentration with flue dust in the P-5L2C type micro computer dust determination instrument mensuration air in every interval is calculated average dust concentration in the air, and the purifying rate of the interior flue dust of counting chamber.
Test result: test result sees Table 1.
Table 1 is with the table as a result of smoke contamination air detection in the clean room of the present invention
| Running time of the present invention (min) | 0 | 20 | 40 | 60 |
| Dust concentration (mg/m 3) | 3.84 | 1.42 | 0.25 | 0.03 |
| Purifying rate (%) | 0 | 63.02 | 93.49 | 99.22 |
2, the present invention detects indoor formaldehyde gaseous contamination air purification effect
Detection method: with 80m
3After the ground, room in space, the wall cleaning, close the doors and windows and leave standstill 12 hours.5 open-top receptacles that formalin is housed evenly are set on ground, from the side with little air quantity fan to blowing, produce formaldehyde gas, make formaldehyde gas be full of the space, remove the normal solution of formaldehyde, start circulating fan and stirred 5 minutes, treat that formaldehyde gas is evenly distributed, reach 2.87mg/m with the portable formaldehyde assay determination of 4160 types instrument determination test formaldehyde in indoor air concentration
3The present invention is placed the middle part, ground, start the present invention, on indoor diagonal apart from four jiaos of 1m and apart from ground 1.5m eminence and 0.5m place, top of the present invention, 5 test points are set, 20 minutes the concentration in every interval with formaldehyde in the portable formaldehyde assay determination of the 4160 types instrument mensuration air, the mean concentration of formaldehyde gas in the calculating room air, and PARA FORMALDEHYDE PRILLS(91,95) gas cleaning rate in the counting chamber.
Testing result: testing result sees Table 2.
Table 2 formaldehyde gas testing result table in the clean room of the present invention
| Running time of the present invention (min) | 0 | 20 | 40 | 60 |
| Concentration of formaldehyde (mg/m 3) | 2.87 | 0.94 | 0.28 | 0.05 |
| Purifying rate (%) | 0 | 67.25 | 90.24 | 98.26 |
3, the present invention kills bacterium in the room air and removes effect detection
Detection method: with 80m
3Closing the doors and windows and leave standstill 12 hours in the room in space, then the present invention is placed the middle part, ground.On indoor diagonal apart from four jiaos of 1m and apart from ground 1.5m eminence and 0.5m place, top of the present invention, 5 test points are set, adopt sedimentation, with the sampling in 5 minutes of 9cm ordinary nutrient agar plate exposure, cultivated 48 hours in 37 ℃ of insulating boxs, asking clump count mean value is 73/ware.Move every interval, back 20 minutes in the present invention,, ask clump count mean value, calculate bacterium is killed the rate of removing with the dull and stereotyped sampling of ordinary nutrient agar.
Testing result: testing result sees Table 3.
Table 3 kills bacterium in the room air with the present invention and removes the testing result table
| Running time of the present invention (min) | 0 | 20 | 40 | 60 |
| Clump count (individual/ware) | 73 | 25 | 9 | 3 |
| Bacterium kills the rate (%) of removing | 0 | 65.75 | 87.67 | 95.89 |
Six, conclusion
Find out by testing result: at 80m
3In the room in space, the present invention moves 60 minutes, and the purifying rate of flue dust is reached 99.22%, and the purifying rate of PARA FORMALDEHYDE PRILLS(91,95) reaches 98.26%, and the germicidal efficiency of bacterium is reached 95.89%.The limit value that pollutant load in the room air is significantly less than among GB/T18883-2002 " IAQ standard ", the GB/T17093-1997 " total number of bacteria sanitary standard in the room air " (can suck particle≤0.15mg/m
3, concentration of formaldehyde≤0.1mg/m
3, total number of bacteria≤45/ware).
Claims (6)
1, a kind of central air-conditioning ventilating system optoacoustic catalytic air sterilization purifying device, support (12) is provided with housing (2), ultrasonic generator (13), buncher (14), be provided with the blast pipe (1) that is connected as a single entity and links with housing (2) in housing (2) top one side, opposite side is provided with the discharge pipe (6) that is connected as a single entity and links with housing (2), setting is equipped with the blast pipe photocatalysis assembly (3) of 1 blast pipe uviol lamp (4) at least in blast pipe (1), the discharge pipe photocatalysis assembly (8) that discharge pipe uviol lamp (7) is installed is set in discharge pipe (6), between housing (2) top blast pipe uviol lamp (4) and discharge pipe uviol lamp (7), be provided with photocatalysis wind wheel (5), photocatalysis wind wheel (5) links by transmission mechanism and buncher (14), sidewall in the housing (2) is provided with fluid level indicator, side wall upper part one side at housing (2) is provided with water injection pipe (19), opposite side is provided with scavenge pipe (9), bottom in housing (2) be provided with housing (2) in the discharging valve (16) that links, it is characterized in that: the bottom is provided with scavenging solution (18) and is immersed in scavenging solution uviol lamp (11) and ultrasonic transducer (10) in the scavenging solution (18) in housing (2), and ultrasonic transducer (10) is connected with ultrasonic generator (13) by lead; Said blast pipe photocatalysis assembly (3) is: framework (3-1) is provided with air intake photocatalysis net (3-2); Said photocatalysis wind wheel (5) is: radially be provided with skeleton 6～12 circumference in equal parts and that wind wheel photocatalysis net (5-3) is installed (5-2) at turning cylinder (5-1).
2, according to the described central air-conditioning ventilating system of claim 1 optoacoustic catalytic air sterilization purifying device, it is characterized in that: said air intake photocatalysis net (3-2) is the nano-TiO that the surface is coated with anatase crystal
240 or 50 order stainless (steel) wires, wind wheel photocatalysis net (5-3) is the nano-TiO that the surface is coated with anatase crystal
240 or 50 or 60 order stainless (steel) wires.
3, according to the described central air-conditioning ventilating system of claim 1 optoacoustic catalytic air sterilization purifying device, it is characterized in that: the structure of said discharge pipe photocatalysis assembly (8) is identical with the structure of blast pipe photocatalysis assembly (3).
4, according to the described central air-conditioning ventilating system of claim 1 optoacoustic catalytic air sterilization purifying device, it is characterized in that: the wavelength of said blast pipe uviol lamp (4) is 254nm, and the wavelength of discharge pipe uviol lamp (7) and scavenging solution uviol lamp (11) is 365nm.
5, according to the described central air-conditioning ventilating system of claim 1 optoacoustic catalytic air sterilization purifying device, it is characterized in that: the supersonic frequency of said ultrasonic transducer (10) is 40～60KHz, and power is 40～50W.
6, according to the described central air-conditioning ventilating system of claim 1 optoacoustic catalytic air sterilization purifying device, it is characterized in that: said scavenging solution (18) is by H
2O
2Being mixed with concentration with pure water is 1～2% H
2O
2The aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100962093A CN1328550C (en) | 2005-10-20 | 2005-10-20 | Light and source catalytic air sterilizing and purifying device for ventilation system of central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100962093A CN1328550C (en) | 2005-10-20 | 2005-10-20 | Light and source catalytic air sterilizing and purifying device for ventilation system of central air conditioner |
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|---|---|
| CN1749660A CN1749660A (en) | 2006-03-22 |
| CN1328550C true CN1328550C (en) | 2007-07-25 |
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| CNB2005100962093A Expired - Fee Related CN1328550C (en) | 2005-10-20 | 2005-10-20 | Light and source catalytic air sterilizing and purifying device for ventilation system of central air conditioner |
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|---|---|---|---|---|
| CN100423783C (en) * | 2006-05-19 | 2008-10-08 | 陕西师范大学 | Supersonic synergic nano light catalytic air-sterilizing-purifying apparatus |
| CN101245941B (en) * | 2008-03-14 | 2010-06-02 | 陕西师范大学 | Indoor air oxygen-compensating and refreshing device |
| CN101244375B (en) * | 2008-03-14 | 2010-06-09 | 陕西师范大学 | Magnetically reinforced photocatalysis wind wheel and air purification method |
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| CN105289289A (en) * | 2015-11-18 | 2016-02-03 | 华文蔚 | Photocatalysis air purifier |
| CN105344207A (en) * | 2015-11-18 | 2016-02-24 | 华文蔚 | Air purifier |
| CN106678959A (en) * | 2016-10-28 | 2017-05-17 | 曾小林 | Indoor air purifier |
| CN108253547B (en) * | 2016-12-27 | 2020-08-04 | 天津市恒润环境工程有限公司 | Air purification device and method |
| CN112209546B (en) * | 2020-10-30 | 2022-07-12 | 张家港东艺超声有限公司 | Ultrasonic-assisted photocatalysis treatment device and method |
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| CN2469354Y (en) * | 2001-02-26 | 2002-01-02 | 武进市华阳电器有限公司 | Air purifying apparatus |
| CN2632550Y (en) * | 2003-05-31 | 2004-08-11 | 深圳市尊业纳米材料有限公司 | Air purifier |
| CN1460828A (en) * | 2003-06-13 | 2003-12-10 | 西安交通大学 | Rotary water film air treatment equipment |
| CN2630710Y (en) * | 2003-06-18 | 2004-08-04 | 韦晓宇 | Air purifier |
| CN1557499A (en) * | 2004-01-17 | 2004-12-29 | 华中科技大学 | Photocatalysis air purifying aerator |
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