Plasma catalysis air purification device

Abstract

The invention discloses a plasma catalysis air purification device which comprises a first electrode and a second electrode used for generating plasma, wherein an insulating medium and a catalyst bed layer are arranged between the first electrode and the second electrode; relative motion is generated between the first electrode and the second electrode. With the adoption of the relative motion generated between the first electrode and the second electrode, a plasma discharge area is driven to sequentially act on the whole catalyst bed layer, organic pollutants stored on the catalyst are completely oxidized into carbon dioxide and water through plasma active species, the device is high in treated air quantity, low in power consumption and low in air resistance, and the air purification effect is greatly improved. The plasma discharge area is driven to move through the relative motion of the electrodes, and the whole catalysts are sequentially treated. Therefore, the power consumption is obviously reduced, the problem of high plasma power consumption in the process of simultaneously treating the whole catalyst bed layer is solved, and the relative motion of the electrodes has the advantages of discharge stability, uniformity and high efficiency.

Description

technical field [0001] The invention relates to low-temperature plasma environment application technology, in particular to a plasma catalytic air purification device. Background technique [0002] The use of building decoration materials and organic solvents will lead to the release of volatile organic pollutants, which will seriously pollute people's living environment and cause various diseases and complications. Atmospheric pressure low-temperature plasma is a new technology for indoor air purification. Low-temperature plasma has very high energy selectivity, electrons are preferentially accelerated to 1-10eV, and the gas temperature is not high, even kept at room temperature, electrons and gas Molecular collision produces a large number of active species through excitation and dissociation process, which can remove pollutants at low temperature, which has the advantages of fast and efficient. However, pure plasma is used for the removal of pollutants, which requires hi...

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Problems solved by technology

Although the patent mentions that a dielectric barrier discharge structure can be used, the dielectric barrier discharge structure described in it only adds an insulating medium between the pin plate corona structures, and this structure also cannot avoid the problem that the plasma is only generated at the tip of the electrode

In addition, in the above two patents, the treatment of the catalyst by the plasma needs to treat the entire catalyst bed at the same time, which is difficult to solve the disadvantage of high power consumption of the plasma

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