Light conduit system for realizing light catalytic air purification and natural ventilation

Abstract

Light conduit system for realizing light catalytic air purification and natural ventilation is provided. The system is composed of light duct, air duct and photocatalysis layer. A light-absorpting shade for collecting sunshine is installed at the light introducing terminal of the light duct. A light-diffusing shade is installed at the light diffusing terminal of the light duct. The light duct and air duct is disposed coaxially. The air duct is covered outside the light duct. The air flow exchange is processed by the ring duct between the air duct and the light duct. The nano photocatalysis layer (such as nano titania) is disposed at the outer side face of the light diffusing cover to introduce the sunshine by the light duct to purify the indoor air. The inner wall of the light duct is also coated the coat absorbing the infrared to benefit the air circulation in the air duct. The light duct may be introduced to the room rotatably and foldably to purify the air in a large area. The system achieves the objective of lighting, ventilation and air purification.

Description

Technical field: [0001] The invention relates to a light pipe system, more specifically to a light pipe system capable of realizing photocatalytic air purification and ventilation, which belongs to the field of light guide, ventilation and air purification, and is mainly a light pipe system that emits sunlight and other light sources. The light is transmitted to the room for lighting, and at the same time, the outdoor air is introduced into the room to increase the indoor fresh air volume, and a nano-scale photocatalyst layer is coated on the lighting surface of the light guide to purify the indoor air under the irradiation of the light drawn from the light guide. Background technique: [0002] The light pipe is a kind of pipe for transmitting light. It pastes a layer of high reflective film on the inner wall of a hollow circular pipe to transfer the light emitted by the light source from one end to the other through total reflection in the pipe to achieve lighting. . The r...

AI Technical Summary

Problems solved by technology

Although this patent is simpler in structure than U.S. Patent 6141645, its ventilation and lighting share a channel, so that, over time, the dust in the air will deposit in the channel, affecting the light transmission efficiency, so regular cleaning is required to improve system maintenance costs

[0005] At present, the existing literature reports only combine light pipes with natural ventilation to achieve indoor solar green lighting and natural ventilation in buildings, but no reports have been found that combine photocatalytic air purification technology with light pipe technology and other ventilation and lighting technologies

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