A central fresh air device containing a photocatalyst module

Abstract

The invention discloses a central fresh air device containing a photocatalyst module, comprising an outdoor air inlet for sucking outdoor fresh air, an indoor air outlet for sucking indoor dirty air, and an outdoor air outlet for exhausting indoor dirty air to the outside. Air outlet, and the indoor fresh air outlet that is used to deliver fresh air indoors; The inboard of described outdoor air inlet is provided with photocatalyst filter integrated block, and described photocatalyst filter integrated block comprises the first catalytic filter screen, the second catalytic filter screen and A cold-cathode fluorescent tube, the cold-cathode fluorescent tube is used to emit ultraviolet light, and the first catalytic filter is arranged between the outdoor air inlet and the cold-cathode fluorescent tube; the second Both the first catalytic filter and the second catalytic filter are fiber braids loaded with titanium dioxide ultraviolet photocatalyst, and the top of the first catalytic filter is also provided with a water mist spray head. The photocatalyst carrier of the invention is easy to install and has high catalytic degradation efficiency.

Description

technical field [0001] The invention relates to a central fresh air device containing a photocatalyst module, which belongs to the technical field of air purification devices using the photocatalyst module to eliminate harmful substances in the air. Background technique [0002] With the continuous improvement of people's health awareness and requirements, more and more attention is paid to the problem of outdoor air pollution, and with the continuous development of my country's industrial level, PM2.5 is also more and more seriously affecting people's lives; in addition, more and more The organic gas pollution produced by the more complex interior decoration also seriously endangers the health of residents; due to the above-mentioned indoor and outdoor air pollution factors, symptoms such as headache, dry cough, dizziness, nausea, and difficulty in concentrating occur frequently; for this reason, The central fresh air system is increasingly widely used in people's homes and w...

AI Technical Summary

Problems solved by technology

The commonly used central fresh air system, whether it uses HEPA filter or electrostatic dust filter, only purifies the tiny particles in the outdoor air and discharges the indoor polluted air. It can only achieve the effect of ventilation and cannot effectively remove fresh air. Microorganisms such as bacteria and viruses in the air and harmful gas molecules such as formaldehyde and benzene

[0003] Chinese patent document CN 202040934 U discloses a total heat exchange fresh air fan that adopts photocatalyst purification. A photocatalyst purification device is installed in the total heat exchange fresh air fan to sterilize and purify the air that enters the room from outside, which is beneficial to people's health. and a dust filtration system is set at the outdoor air inlet and the photocatalyst purification device, so that the effect of the photocatalyst purification device is more remarkable; but the photocatalyst carrier in the above-mentioned technical scheme is made of alumina ceramic material, although alumina ceramic has mechanical strength High, high insulation resistance, high hardness, wear resistance, corrosion resistance and high temperature resistance, etc., but it also has the disadvantage of difficulty in installation, which leads to the overall structure of the central fresh air system being bloated and complex. In addition, the contact area of ​​the photocatalyst carrier made of alumina ceramics Limited, so the catalytic degradation function is limited, and the efficiency of degrading toxic and harmful gases in the air needs to be further improved

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