Photocatalysis air purifying aerator

Abstract

The photocatalytic air-purifying ventilator has the structure including casing with air inlet canal and air outlet canal, blower with shaft connected to the shaft of motor, at least two fiber bundles coated with nano photocatalytic material and fixed to the blower shaft, ultraviolet lamp inside the blower shaft, rack for the ultraviolet lamp to be fixed on and fixed onto the casing and motor. Under the driving, the blower shaft together with the fiber bundles rotates. The ventilator with nano photocatalytic material and fiber as the carrier has the advantages of great contact area between air and photocatalyst, high purifying efficiency, wide spectrum of eliminated pollutant, simple structure, reliable operation, no secondary pollution, etc. and is especially suitable for purifying air in closed space, such as that in submarine and hospital.

Description

technical field [0001] The invention relates to an air purification ventilation device, in particular to a photocatalytic air purification ventilation device. Background technique [0002] Because the human body, production process, and indoor buildings, decorations, and articles emit various inorganic and organic gas pollutants and aerosols including alkanes, ketones, organic acids, halides, carbon monoxide, spores, bacteria, and viruses, causing indoor air pollution. Pollution, the degree of pollution has reached 5 times that of the outdoors, and some can even reach 100 times, seriously affecting human health. Most of the commonly used air purification technologies are based on the adsorption of toxic substances by activated carbon. These methods only transfer pollutants from one phase to another, and the treatment of pollutants themselves is still a problem. [0003] In recent years, the heterogeneous photocatalytic oxidation process using semiconductor oxides as catalys...

AI Technical Summary

Problems solved by technology

However, these nanophotocatalytic materials have great selectivity to irradiated light, such as TiO 2 Its absorption threshold is less than 400nm, and its bandgap energy is 3.2eV, which is equivalent to 387.5nm photon energy, while the minimum wavelength of natural light such as sunlight reaching the ground is 300nm, and the ultraviolet light energy between 300.0 and 387.5nm only accounts for about 300nm of sunlight. About 1% of energy, low utilization rate of sunlight

Therefore, the photocatalytic reaction efficiency of these photocatalytic air purification devices using natural light is low at present, and the effect of air purification is limited.

[0004] The patent number is ZL02235255.4, a utility model patent named "Tubular Photocatalytic Air Purification and Sterilization Device". Its disadvantages are: the purification surface coated with nano-photocatalytic materials is one-dimensional, and the utilization rate of nano-photocatalytic materials is low. , so that the air purification efficiency is low

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