Air purification method and device based on corona discharge plasma

Abstract

The invention belongs to the technical field of indoor air purification, and discloses an air purification method and device based on corona discharge plasma. The method includes: controlling the air flow and air humidity so that the gas entering the air purification equipment meets the purification conditions; In the discharge chamber, the high-voltage pulse voltage is used to make the discharge electrode generate high-energy particles and inactivate the microorganisms to reduce the generation of secondary pollution ozone at the source; the charged solid particles after discharge are collected under the action of parallel metal collecting plates ; By diverting the gas into the purification chamber, and under the action of ultraviolet photocatalysis, the ozone generated during the discharge process, nitrogen oxides and VOCs in the air are further purified. The invention performs secondary removal of ozone, nitrogen oxides and VOCs in the air, well avoids secondary pollution, and can realize the effect of purifying air at the same time.

Description

technical field [0001] The invention belongs to the technical field of indoor air purification, and more specifically relates to an air purification method and device based on corona discharge plasma. Background technique [0002] Nowadays, chronic diseases caused by air pollution are serious, and the disorderly burning of coal for heating in the northern region has also caused serious smog pollution in the northern region. Heating in winter in northern China burns about 400 million tons of coal each year. From the perspective of time distribution, affected by heating, the monthly average emission level of disposable particulate matter (PM2.5) and organic carbon, black carbon, etc. in autumn and winter is that of non-heating seasons. 1.5 times to 4 times. In some cities with a large amount of loose coal, the emission levels of the above pollutants are higher in autumn and winter. The pollution emission intensity far exceeding the environmental carrying capacity is the main f...

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the object of the present invention is to provide a method and device for air purification based on corona discharge plasma, aiming at solving the problem of using a filter screen to filter the air in the prior art and causing viruses caused by long-term use of the filter screen. Accumulation or microbial growth, and the problem of secondary pollution caused by the uncontrollable discharge process in the plasma purification device

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