Indoor air purifier using photocatalytic oxidation process

A photocatalytic oxidation and indoor air technology, which is applied in the direction of combined devices, air conditioning systems, space heating and ventilation, etc., can solve the problems of photocatalyst activity, poor treatment process, and unreasonable device structure, etc., and achieve reasonable structure and air quality. Fresh, good treatment effect

Inactive Publication Date: 2006-09-20
广州市华之特奥因特种材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a photocatalytic oxidation indoor air purifier with reasonable structure and excellent activity of photocatalytic oxidant to solve the shortcomings of the existing indoor air purifiers, such as poor photocatalyst activity and processing technology, and unreasonable device structure.

Method used

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  • Indoor air purifier using photocatalytic oxidation process
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  • Indoor air purifier using photocatalytic oxidation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] figure 1 , figure 2 The shown photocatalytic oxidation indoor air purification device is an upright box structure, which consists of a casing 1, an air guide device with a fan 16 as a power source, and a primary fine dust filter 6 with a filtration accuracy of 1-10 μm. A primary filter and dust removal device consisting of a 0.5-1 μm intermediate dust filter 7 and an activated carbon filter 8, a photocatalytic oxidation treatment device, a circuit board 11, and a control panel 3;

[0043] The air guiding device is composed of the air inlet door 2, the air outlet door 4, the air outlet bucket 15, the cross-flow fan 16, the air outlet baffle driving device 9 and the casing 1, and the air enters the photocatalytic Oxidation treatment device;

[0044] The photocatalytic oxidation treatment device is composed of two photocatalytic reaction units. The thickness of the photocatalyst filter is 10mm. The distance between the C-band ultraviolet lamp and the photocatalyst filte...

Embodiment 2

[0057] Example 1 In the indoor air purification device of photocatalytic oxidation, the distance between the ultraviolet lamp and the photocatalyst filter screen was changed to 5cm. The content is 3.45 and 4.80mg / m 3 , the content of xylene and formaldehyde were 1.08 and 1.22mg / m3 after starting up for 3 hours 3 .

Embodiment 3

[0059] Example 1 In the photocatalytic oxidation indoor air purification device, the photocatalyst is attached to the cellular polyurethane and natural zeolite composite carrier by spraying, the number of spraying is 5 times, and the treatment time at 120°C is 90 minutes.

[0060] The result is: under the conditions of photocatalytic test temperature 25°C and humidity 50%, the content of xylene and formaldehyde are 8.52 and 6.70mg / m 3 , the content of xylene and formaldehyde were 0.63 and 0.45mg / m3 after starting up for 3 hours 3 .

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Abstract

The present invention discloses a photocatalytic oxidizing chamber interior air-cleaning device. It is characterized by that the photocatalytic oxidizing treatment device is formed from 1-5 photocatalytic reaction units; every photocatalytic reaction unit is composed of carrier, honeycomb photocatalyst filter screen using titanium dioxide photocatalyst composite solution as photocatalyst and UV lamp, the distance from photocatalyst filter screen to UV lamp is 0.5-20cm, the photocatalyst is attached to the carrier by adopting impregnation, coating or spraying mode. Said invention can obtain good effect for cleaning air and killing bacteria.

Description

technical field [0001] The invention relates to a photocatalytic oxidation indoor air purification device. technical background [0002] Air is an essential condition for human survival and development. People spend more than 2 / 3 of their lives indoors. The quality of indoor air is directly related to people's health and life safety. In recent years, indoor air has been accused of being the main way to spread viruses, and indoor environmental pollution has been included in the blacklist of the "ten killers" of human beings by world environmental protection experts. Simply using traditional air purification products such as activated carbon, air fresheners, formaldehyde scavengers, ultraviolet light (lamps), oxygen negative ions, and ozone cannot achieve the purpose of truly purifying the air. The commercial application of photocatalytic oxidation technology to purify air has emerged in China. The indoor air purification device disclosed in Chinese patent 03226080.6 is pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/16A61L9/20B01D50/00B01D53/86B01D53/04
Inventor 陈焕光陈丽玉王良焱龚逸颜陈晓
Owner 广州市华之特奥因特种材料科技有限公司
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