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Photocatalyst air purifier

A generator, ultraviolet technology, applied in the direction of climate change adaptation, air quality improvement, chemical instruments and methods, etc., can solve the problems of unsuitability for indoor use, human injury, a large amount of ozone, etc., to improve indoor air quality and reduce disease transmission. , the effect of reducing ambient air pollution

Inactive Publication Date: 2016-04-06
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Studies have shown that some bacteria and viruses can be killed by ultraviolet radiation, but ultraviolet rays can cause damage to the human body
In addition, long-term exposure to ultraviolet germicidal lamps will produce a large amount of ozone, which is not suitable for indoor use

Method used

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Examples

Experimental program
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Embodiment Construction

[0020] see figure 1 Schematic diagram of the photocatalyst air purifier, 1 is the exhaust grille, 2 is the handle, 3 is the timer, 4 is the power indicator light, 5 is the light control knob, and 6 is the wind speed control knob. see figure 2 Schematic diagram of the internal structure of the photocatalyst air purifier, 1 exhaust grid, 2 fan, 3 coarse filter membrane, 4 nanometer cellulose acetate membrane, 5 nanometer titanium dioxide metal mesh, 6 ultraviolet lamp tube, 7 ballast, 8 air intake cover. The air enters from the air intake hood, first passes through the coarse filter membrane for primary filtration, and then enters the ultraviolet hydroxyl radical generation cavity of the photocatalyst, under the catalysis of nano-titanium dioxide on the surface of the metal mesh, the ultraviolet rays quickly produce a large amount of water vapor in the air with great Hydroxyl free radicals with strong oxidation can not only quickly kill pathogens such as bacteria, viruses, mo...

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Abstract

The invention discloses an air purifier through a photocatalyst ultraviolet hydroxyl radical generator and a multiple-filtration system. Firstly, indoor air enters the photocatalyst ultraviolet hydroxyl radical generator through a coarse filtering film; water vapor in the air is made to rapidly generate a large quantity of hydroxyl radicals with extremely strong oxidation through ultraviolet rays with specific wavelength under the catalyzing action of nano-TiO2; the hydroxyl radicals can rapidly kill bacteria, viruses and mould in the air to achieve oxidation decomposition of volatile organic compounds in the air and can also achieve oxidation decomposition of other pollutants generated by natural and human factors, such as methane, nitrogen monoxide, hydrogen sulfide, ozone and other toxic and harmful gases (SO2, O3 and NH3); then the air treated in the former step is subjected to deep filtering through a nanometer cellulose acetate membrane, and residual bodies of pathogens such as tiny bacteria, viruses, mould and dust mite and particulate matter of PM2.5 and the like are adsorbed and filtered out.

Description

technical field [0001] The invention relates to an air purification device which catalyzes water molecules in the air to generate hydroxyl radicals through ultraviolet irradiation and catalyzed by nano-level titanium dioxide, and performs adsorption and filtration through multiple nano-adsorption materials. Background technique [0002] With the rapid development of urbanization, industrialization and informatization in our country, people spend more and more time indoors, up to 90%. The air circulation in the indoor environment is slow, and it is easy to gather bacteria and viruses, which will affect the quality of indoor air and cause adverse effects on human health. In a poorly ventilated environment, the pollution level of the indoor environment is 2.5 to 100 times higher than that of the outdoor environment. The use of air purifiers is the most convenient and effective means of air purification in daily work and life. [0003] Studies have shown that some bacteria and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/02F24F13/28F24F11/00A61L9/20A61L9/22B01D53/86B01D53/72B01D53/60B01D53/52B01D53/66B01D53/58B01D53/44B01D46/54
CPCY02C20/10Y02A50/20Y02A50/2351
Inventor 蔡澎杨传俊
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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