Air filtering and sterilizing device

Abstract

The invention provides an air filtering and sterilizing device. The air filtering and sterilizing device is applied to indoor air purifying, and comprises a tank body, a filter and a fan unit, wherein the filter and the fan unit are arranged in the tank body; the filter comprises a primary filter and a secondary filter and is used for filtering and sterilizing air entering the tank body; and the fan unit comprises a motor and a fan, the motor is used for driving the fan to rotate, and the fan is used for sucking air into the tank body and blowing out the filtered air through the filter. The two filters are arranged in the tank body, the primary filter is used for filtering inhalable particles in air entering the tank body, and the secondary filter is used for further filtering and sterilizing the air filtered by the first filter; and the rotation speed of the motor is controlled so as to infinitely variably controlling the air volume for air cleaning treatment, so that the application range of the air filtering and sterilizing device is greatly expanded, and the energy consumption of the device is reduced.

Description

technical field [0001] The invention relates to the field of air purification equipment, in particular to an indoor air filtering and sterilizing device. Background technique [0002] In recent years, air pollution has become more and more serious. The world index PM2.5 (particulate matter with a diameter of ≤ 2.5 microns) is less than 10, which is a safe value, while it is higher than 50 in most parts of my country. Poor air quality seriously affects human health. Therefore, it is necessary to effectively filter and sterilize the outdoor air entering the room to purify the air to protect human health. [0003] At present, the air filter materials used in the filters on the market are mostly non-woven fabrics, which have low filtration efficiency and poor purification effect, or use high-efficiency filter paper, which has large air resistance and short service life. Under the circumstances, the air filter material of the existing filter can no longer meet the purification r...

AI Technical Summary

Problems solved by technology

[0003] At present, the air filter materials used in filters on the market are mostly non-woven fabrics, which have low filtration efficiency and poor purification effect, or use high-efficiency filter paper, which has large air resistance and short service life. Under the current situation, the air filter material of the existing filter can no longer meet the purification requirements

[0004] PM2.5 inhalable particulate matter is also a kind of bacteria carrier, especially in humid air and polluted atmosphere, such particles become a breeding ground for various bacteria. At present, photocatalyst is the most important simple killing bacteria in various air purifiers However, nano-titanium dioxide as a photocatalyst material must be irradiated by large sunlight or ultraviolet lamps to work, so a C-band ultraviolet lamp must be installed in the filter. Therefore, not only the volume and cost of the purifier are increased, but also Since the life of the ultraviolet lamp is only 2000-4000 hours, the replacement frequency is high, the cost is high, and it is inconvenient to use

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