CN1200231C - Controllable humidity air purifying and treatment device - Google Patents
Controllable humidity air purifying and treatment device Download PDFInfo
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- CN1200231C CN1200231C CN 03129443 CN03129443A CN1200231C CN 1200231 C CN1200231 C CN 1200231C CN 03129443 CN03129443 CN 03129443 CN 03129443 A CN03129443 A CN 03129443A CN 1200231 C CN1200231 C CN 1200231C
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- 230000001954 sterilising effect Effects 0.000 claims abstract description 49
- 230000000249 desinfective effect Effects 0.000 claims abstract description 14
- 238000007791 dehumidification Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 238000004659 sterilization and disinfection Methods 0.000 claims description 43
- RTKIYNMVFMVABJ-UHFFFAOYSA-L thimerosal Chemical compound [Na+].CC[Hg]SC1=CC=CC=C1C([O-])=O RTKIYNMVFMVABJ-UHFFFAOYSA-L 0.000 claims description 19
- 229940033663 thimerosal Drugs 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 14
- 238000004887 air purification Methods 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 22
- 208000035473 Communicable disease Diseases 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 6
- 208000015181 infectious disease Diseases 0.000 abstract description 6
- 230000008506 pathogenesis Effects 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 208000011580 syndromic disease Diseases 0.000 abstract 1
- 241000700605 Viruses Species 0.000 description 10
- 230000001580 bacterial effect Effects 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 241000315672 SARS coronavirus Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 231100000597 Sick building syndrome Toxicity 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- 208000008842 sick building syndrome Diseases 0.000 description 1
- 210000004927 skin cell Anatomy 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
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- Central Air Conditioning (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The present invention discloses a controllable humidity air purifying and treatment device which is provided with an air spraying system, an air dehumidification system, a sterilizing and disinfecting system and an assisted control system. The device can be used as a processing device for purifying and disinfecting the air in an air conditioner room and is used as an exhaustion processing device in a high risk infectious disease pathogenesis place. When the present invention is used as the processing device for purifying and disinfecting the air in an air conditioner room, the air is purified and disinfected to overcome the defect by adopting the traditional filter, the medicament method, the ultraviolet method, etc. The humidity of the room can be adjusted, and the harmful gas in the room is removed. The indoor air quality of the air conditioner room is greatly improved, and the pathosis synthetic building syndrome and various infectious diseases (such as the SARS) in the room is effectively prevented. When the present invention is used as the exhaustion processing device in the high risk infectious disease pathogenesis place, the pestiferous bacteriovirus in the air can be eliminated and the propagation path can be cut off.
Description
Technical field
The present invention relates to a kind of controlled humidity air purification processing equipment.Especially can remove effectively and be present in the airborne bacterial virus (such as SARS virus) that causes infectious disease, cut-out route of transmission, protection Susceptible population.
Background technology
Air cleaning not only requires to remove airborne grit, and requires except that degerming and virus.Microorganisms such as bacterial virus seldom can individualism in air, the normal grit surface that exists than their big several times, and grit is the carrier of bacterium, and airborne grit is many more, and the approaching with it chance of grit is also many more, and chance attached to it is also just many.Purification method has filtration method, dry heating method, high-temperature wet steam vapour sterilization, medicine method and electromagnetic radiation method at present.Filtration method is an air when passing through filter, and grit and the bacterial virus that is attached to the grit surface are held back by filtrate.Roughing efficiency air filter is suitable for general air-conditioning system, can effectively filter the grit of particle diameter greater than 5 μ m, as primary filter.Medium effeciency filter is used for the prime protection of high efficiency particulate air filter, is used for the higher air-conditioning system of cleannes, and medium effeciency filter is to effectively filtering greater than 1 μ m particle diameter grit.High efficiency particulate air filter is considered bacterium efficient almost nearly 100%.Dry heating method is a methods of heating treatment in the dry air, and based on the principle of the oxidation destroy microorganisms under the high thermal processes act, but the temperature that needs is up to 160 ℃, for up to 1-2 hour.High-temperature wet steam vapour sterilization based on making the bacterial cell internal protein solidify principle under the hyther, needs temperature lower than dry heating method, and the time is also short, such as, can sterilize in 2 minutes following need of 121 ℃ of conditions of temperature 12 minutes or under 134 ℃ of conditions of temperature.The medicine method is to spray or fumigation medicine killing bacteria virus in air, and Peracetic acid is stifling such as using, the glutaraldehyde spray air is eliminated airborne SARS virus.Electromagnetic radiation method is based on the destruction protein of bacteria, and nucleic acid and sterilizing are such as ultraviolet radiation for sterilizing and disinfecting.There is following shortcoming in existing various purification methods: the resistance of high efficiency particulate air filter is big, cost an arm and a leg, and be inappropriate for comfort air conditioning system room or hospital ward with this filter.And medium effeciency filter can not effectively be removed airborne bacterial virus, domesticly considers bacterium efficient only 80% with the medium effeciency filter result of the test.Air is trapped within the grit bacterial virus of filter surfaces when the filter, cleans difficulty, and bacterial virus tends to breed again and the air stream that filtered is taken away at filter material surface simultaneously.Dry heating method, high-temperature wet steam vapour sterilization are not suitable for people often movable air-conditioned room or hospital ward.The organic gas of the special odor that the volatilization of medicine method thimerosal is produced stimulates the respiratory apparatus of human body, and the vomiting that easily causes nausea waits and makes us uncomfortable sensation, and these volatilization organic gaseous contamination air are harmful to human body simultaneously.The workload of sterilization is big, need to be equipped with the special staff work that carries out disinfection.The disinfection by ultraviolet light sterilization needs long-time irradiation to exposing object, and the people can not enter in irradiation time, otherwise destroys people's Skin Cell, and tangible carcinogenesis is arranged.In case stop to shine the activity that recovers the people, after particularly continuous inlet chamber outer air or the new wind, sterilization effect originally is very fast all gone; Uviol lamp is also followed ozone generating.In addition, above-mentioned all methods all can not be eliminated airborne pernicious gas, can not regulate the humidity of air.
Summary of the invention
The purpose of this invention is to provide a kind of controlled humidity air purification processing equipment.
It has air spray system, air dehumidification system, sterilizing system, the air spray system is: two water pipes are arranged in the circulating water chennel bottom, one links to each other with circulating pump, another root links to each other with draining control valve, filler is arranged on circulating water chennel top, circulating water chennel side arrangement wind deflector, the circulating water chennel sidewall is provided with water supply control valve; Shower nozzle is arranged on filler top, and shower nozzle is connected with circulating pump by water pipe; The air dehumidification system layout is on air spray system top, evaporimeter one end that is positioned at shower nozzle top air duct links to each other with throttle part, the other end links to each other with compressor, the compressor other end is connected with condenser, condenser is arranged in evaporimeter top, the condenser other end links to each other with throttle part, and blower fan is arranged on condenser top; Draining sterilizing system layout is in the bottom of air spray system, in the sterilization tank electric heater is set, disinfectant trench bottom water pipe links to each other with draining control valve, and sterilization tank side pipeline links to each other with the thimerosal control valve, and the control valve other end links to each other with the thimerosal case.
The invention has the beneficial effects as follows, when as air-conditioned room air purifying and sterilizing treating apparatus, not only can carry out dedusting and purifying air and sterilization, overcome the defective that methods such as traditional filter, medicine method and ultraviolet ray purify air, and can regulate room humidity, eliminate pernicious gas in the room, improve the indoor air quality of air-conditioned room greatly, " Cure of Sick Building Syndrome " and the various infectious disease (as SARS) that effectively prevent air-conditioned room and occurred; When as the air draft treating apparatus in hospital ward and high-risk infectious disease incidence place, can eliminate and be present in pathophorous bacterial virus in the air, cut off the route of transmission.
Description of drawings
Accompanying drawing is a controlled humidity air cleaning unit schematic diagram.
The specific embodiment
The controlled humidity air purification processing equipment comprises air washing system, air dehumidification system, sterilizing system and their supplementary controlled system.The air washing system is: two water pipes are arranged in circulating water chennel 16 bottoms, one links to each other with circulating pump 4, another root links to each other with draining control valve 11, filler 2 is arranged on circulating water chennel 16 tops, circulating water chennel 16 side arrangement wind deflectors 1, circulating water chennel 16 sidewalls are provided with water supply control valve 10 and artificial filler 19; Shower nozzle 3 is arranged on filler 2 tops, and shower nozzle 3 is connected with circulating pump 4 by water pipe.The air dehumidification system layout is on air washing system top, evaporimeter 5 one ends that are positioned at shower nozzle 3 top air ducts 18 link to each other with throttle part 8, the other end links to each other with compressor 7, compressor 7 other ends are connected with condenser 6, condenser 6 is arranged in evaporimeter 5 tops, and condenser 6 other ends link to each other with throttle part 8.Blower fan 9 is arranged on condenser 6 tops.Draining sterilizing system layout is in the bottom of air washing system, in the sterilization tank 17 electric heater 12 is set, sterilization tank 17 bottom water pipes link to each other with draining control valve 15, and sterilization tank side pipeline links to each other with thimerosal control valve 13, and the other end links to each other with thimerosal case 14.Supplementary controlled system comprises following aspect: humidity sensor 20 is set at wind deflector 1 place and humidity controller 21 control compressors are stopped; Establish liquid level sensor 22 and fluid level controller 23 control water supply control valves 10 switches in the circulating water chennel 16; Establish liquid level sensor 24 and fluid level controller 25 control draining control valves 11 switches in the sterilization tank 17; Establish temperature sensor 28 and temperature and time in the sterilization tank 17 and put the sterilisation temp and the disinfecting time of controller 26 control electric heaters 12; Thimerosal is set controls thimerosal control valves 13 switches with amount controller 27.
The present invention is made up of air washing system, air dehumidification system, sterilizing system and their supplementary controlled system.The air washing system work process is that air flows into filler 2 through wind deflector 1, fully contact in filler 2 with the water droplet of shower nozzle 3 ejections, airborne pernicious gas, grit, bacterium, virus is through inertia, hold back and multiple effect such as diffusion and dissolving enters in the water, air is cleaned in filler 2, simultaneously air in filler 2 by the water droplet humidification and near saturated moist air, air and water reverse flow, water droplet flows into circulating water chennel 16, provide power through water circulating pump 4 then, again become water droplet through shower nozzle 2, enter in the filler 2 purify and humidification constantly from wind deflector 1 leaked-in air, the water in the circulating water chennel 16 is through water supply control valve 10 supplies.The air dehumidification system work process is that saturated moist air is cooled in evaporimeter 5 after the dehumidification, enter condenser 6 again by etc. wet heating, discharge through blower fan 9 then.Compressor 7, condenser 6, expansion valve 8 and 5 composition systems of evaporimeter move by the kind of refrigeration cycle mode.The sterilizing system work process is to carry out sterilizing from recirculated water thimerosal in electric heater 12 heating high temperature sterilization sterilizations or adding disinfect box 14 sterilizing tank 17 that circulating water chennel 16 is discharged, and requires to discharge according to disinfecting time through control valve 15 then.Supplementary controlled system comprises the control to compressor, heater and control valve (10,11,15,13).
Dibit control is adopted in compressor 7 controls.Prescribe a time limit when wind deflector 1 place's humidity sensor 20 relative humidity of surveying surpasses on the given rh value, humidity controller 21 sends action and connects circuit, and compressor 7 brings into operation, and realizes the dehumidification process, and blower fan 9 outlet air humidity reduce; When wind deflector 1 place's humidity sensor 20 relative humidity of surveying is lower than given relative humidity lower limit, humidity controller 21 sends the action disconnecting circuit, and compressor 7 is out of service, realizes humidification, and blower fan 9 outlet air relative humidity increase.So just realized that room humidity is controlled at comfort air conditioning system all the time to be required in the humidity range, satisfies human body to the comfortableness requirement.
The recirculated water trough inner water should regularly be changed, and realizes by control water supply control valve 10 and draining control valve 11.Liquid level in the circulating water chennel also realizes by control water supply control valve 10 and draining control valve 11.
The control of heater 12 comprises the control of disinfecting time and sterilisation temp.Set the bound of sterilisation temp and the upper limit of disinfecting time according to medical requirement.When the liquid level sensor 24 of sterilization in the tank 17 when surveying liquid level rising higher limit, controller 26 sends action and connects electric heater 12, heating begins; When sterilization tank 17 temperature sensors 28 measured temperatures rose to the lower limit of sterilisation temp of setting, disinfecting time picked up counting; When temperature sensor 28 measured temperatures of sterilization in the tank 17 rise on the sterilisation temp of setting in limited time, controller 26 sends action and disconnects electric heater 12; Temperature sensor 28 measured temperatures in sterilization tank 17 drop to sets sterilisation temp down in limited time, and controller 26 sends action and connects electric heater 12; Set going up in limited time of disinfecting time when disinfecting time reaches, controller 26 sends action and disconnects electric heater 12, and sterilizing work is finished.
The control of thimerosal control valve 10 is set according to the liquid level and the thimerosal consumption of sterilization tank 17.The thimerosal consumption is determined according to medical requirement.Liquid level sensor 24 liquid level of surveying in sterilization tank 17 rises to going up in limited time of given liquid level, and controller 27 sends action opening controlling valve 10; Reach going up in limited time of the thimerosal consumption that sets when the consumption of thimerosal, controller 27 sends action closed control valve 10.
Draining control valve 15 is set according to sterilization tank 17 liquid levels and disinfecting time.When disinfecting time reached the higher limit that medical requirement sets, controller 26 sent action opening controlling valve 15; When liquid level sensor 24 liquid level of surveying dropped to the liquid level lower limit that sets in the sterilization tank 17, controller 26 sent action closed control valve 15.
Adopt heating disinfection still to adopt the thimerosal sterilization freely to select by the user.
The present invention is during as the air purifying and sterilizing treating apparatus of air-conditioned room, the participation work of air dehumidification system; During as the air draft treating apparatus in hospital ward and high-risk infectious disease incidence place, the air dehumidification system does not participate in work.
Claims (9)
1. controlled humidity air purification processing equipment, it is characterized in that: it has air spray system, air dehumidification system, sterilizing system, the air spray system is: two water pipes are arranged in circulating water chennel (16) bottom, one links to each other with circulating pump (4), another root links to each other with draining control valve (11), filler (2) is arranged on circulating water chennel (16) top, circulating water chennel (16) side arrangement wind deflector (1), and circulating water chennel (16) sidewall is provided with water supply control valve (10); Shower nozzle (3) is arranged on filler (2) top, and shower nozzle (3) is connected with circulating pump (4) by water pipe; The air dehumidification system layout is on air spray system top, evaporimeter (5) one ends that are positioned at shower nozzle (3) top air duct (18) link to each other with throttle part (8), the other end links to each other with compressor (7), compressor (7) other end is connected with condenser (6), condenser (6) is arranged in evaporimeter (5) top, condenser (6) other end links to each other with throttle part (8), and blower fan (9) is arranged on condenser (6) top; Draining sterilizing system layout is in the bottom of air spray system, in the sterilization tank (17) electric heater (12) is set, sterilization tank (17) bottom water pipe links to each other with draining control valve (15), sterilization tank side pipeline links to each other with thimerosal control valve (13), and control valve (13) other end links to each other with thimerosal case (14).
2. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that said control valve (10), (11), (13), (15) are motor-driven valve, magnetic valve or hand-operated valve.
3. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that said circulating water chennel (16) is provided with artificial filler (19).
4. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that being provided with humidity sensor (20) near the said wind deflector (1), and the humidity controller (21) that is used to control air humidity.
5. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that being provided with in the said circulating water chennel (16) level sensing display (22), fluid level controller (23) control water supply control valve (10).
6. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that being provided with in the said sterilization tank (17) liquid level sensor (24), fluid level controller (25) control draining control valve (11).
7. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that being provided with in the said sterilization tank (17) temperature sensor (28), temperature and time controller (26).
8. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that said sterilization tank (17) is provided with thimerosal and controls thimerosal control valve (13) with amount controller (27).
9. a kind of controlled humidity air purification processing equipment according to claim 1 is characterized in that disinfecting with electric heater (12) heating disinfection or thimerosal sterilization of water that said sterilization tank (17) has polluted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129443 CN1200231C (en) | 2003-06-20 | 2003-06-20 | Controllable humidity air purifying and treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129443 CN1200231C (en) | 2003-06-20 | 2003-06-20 | Controllable humidity air purifying and treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1475708A CN1475708A (en) | 2004-02-18 |
| CN1200231C true CN1200231C (en) | 2005-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03129443 Expired - Fee Related CN1200231C (en) | 2003-06-20 | 2003-06-20 | Controllable humidity air purifying and treatment device |
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| Country | Link |
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| CN (1) | CN1200231C (en) |
Families Citing this family (22)
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| AU2006219801A1 (en) * | 2005-03-03 | 2006-09-08 | Medclan Sas | Humidifier with maximum decontamination |
| CN101574602B (en) * | 2009-05-12 | 2011-08-03 | 浙江金菱制冷工程有限公司 | Dust-filtering air processor and |
| CN102226553A (en) * | 2011-05-05 | 2011-10-26 | 杨军 | Variable mode wet type air purifier |
| CN103327801B (en) * | 2013-05-31 | 2016-02-24 | 中国舰船研究设计中心 | Control method of cabin electromagnetic environment |
| CN103453608A (en) * | 2013-08-22 | 2013-12-18 | 苏州康华净化系统工程有限公司 | Humidifier |
| CN103743016A (en) * | 2013-12-26 | 2014-04-23 | 宝鸡兴业空调设备（集团）有限公司 | Evaporative cooling air conditioner capable of regulating temperature and humidity |
| CN105276726A (en) * | 2014-07-24 | 2016-01-27 | 彭辰祺 | Fresh air haze removal air conditioner unit |
| CN104132433B (en) * | 2014-08-07 | 2017-04-19 | 南宁天亮精细化工有限责任公司 | Method for controlling air purification regulator without indoor unit |
| CN104353319A (en) * | 2014-12-02 | 2015-02-18 | 西宁意格知识产权咨询服务有限公司 | Air purification device |
| CN105169849A (en) * | 2015-09-28 | 2015-12-23 | 冉和平 | Air purifier |
| CN105444286A (en) * | 2015-12-16 | 2016-03-30 | 冉和平 | Air purifier |
| CN106257150B (en) * | 2016-08-16 | 2018-11-02 | 宁波金源控股有限公司 | The intelligent humidification machine and its control method controlled with mobile phone |
| CN106524344A (en) * | 2016-11-30 | 2017-03-22 | 美的集团股份有限公司 | Dust removing method of air conditioner, heat exchanging mechanism and air conditioner |
| CN106693225B (en) * | 2017-01-06 | 2019-08-27 | 常州贝斯莱夫安全设备有限公司 | A kind of industrial piping system compressed air filtering humidifier and its method |
| CN108426302A (en) * | 2018-03-07 | 2018-08-21 | 广东美的制冷设备有限公司 | Vertical air-conditioner indoor unit |
| CN108297112A (en) * | 2018-05-03 | 2018-07-20 | 苏州高新区建金建智能科技有限公司 | A kind of robot with multiple near-infrared spectrometers and function of killing virus |
| KR102610034B1 (en) * | 2019-03-28 | 2023-12-06 | 엘지전자 주식회사 | Air conditioner and method for controlling the same |
| CN110559785B (en) * | 2019-10-18 | 2021-08-10 | 湖南人文科技学院 | Gather high-efficient air of wind formula and remove purifier for haze |
| CN110686337B (en) * | 2019-10-31 | 2021-01-15 | 安徽嘉乐斯乐净化工程有限公司 | Dust removing device for air purifier |
| CN111550876A (en) * | 2020-05-04 | 2020-08-18 | 江苏德林环保技术有限公司 | Air purifier with disinfection and sterilization functions |
| CN111878931B (en) * | 2020-09-02 | 2024-04-26 | 中铁建设集团有限公司 | High-pollution building space exhaust comprehensive disinfection system and method |
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-
2003
- 2003-06-20 CN CN 03129443 patent/CN1200231C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1475708A (en) | 2004-02-18 |
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