Low temperature plasma air disinfection and purification module

Abstract

The invention discloses a low-temperature plasma air disinfection and purification module. The purification module includes a conical corona electrode and a circular hole plate electrode; The conical corona electrodes on both sides are arranged at intervals; the metal mesh is loaded with a photocatalyst; the two holes of the round holes are provided with round holes distributed in a rectangular array, and the metal mesh is located on the two round holes. Between the electrodes; the tapered corona electrodes on both sides of the metal mesh are coaxial with the round holes of the side round hole plate electrodes. The two electrodes of the present invention adopt a coaxial structure, and the conical corona pole is firmer, and will not be deformed during later cleaning; the discharge mode of the conical opposite circular hole is adopted, and the discharge area is umbrella-shaped, which increases the discharge of each small discharge unit area, improve the purification efficiency of the purification unit; use plasma to treat it, improve the binding force between the catalyst and the metal mesh, and improve the catalytic performance of the catalyst.

Description

technical field [0001] The invention belongs to the field of low-temperature plasma air disinfection and purification, and in particular relates to a low-temperature plasma purification module used for indoor air disinfection and purification. Background technique [0002] With the improvement of people's living standards, people pay more and more attention to the indoor environmental quality. The technologies used by air purifiers currently on the market generally fall into the following categories: filter adsorption, catalyst catalytic decomposition, ultraviolet lamp irradiation and plasma. [0003] Filter filter adsorption is to use small-pore materials to filter dust and bacteria, and use activated carbon to absorb harmful substances such as formaldehyde and VOC. However, this method does not fundamentally solve the pollution problem, and the filter material needs to be replaced frequently, and it may cause secondary pollution. risk; catalyst catalytic decomposition can...

AI Technical Summary

Problems solved by technology

[0006] 1. The corona electrode adopts wire electrode or needle electrode. When it is used for cleaning in the later stage, it is easy to cause deformation of the electrode and affect the use of the discharge unit in the later stage;

[0007] 2. When the corona electrode adopts zigzag, star, prickly wire, and herringbone wire, the discharge area formed when each tip is discharged is small, resulting in low purification efficiency;

[0008] 3. The catalyst is loaded on the stainless steel mesh electrode through AB glue. The catalyst will be in the plasma for a long time, and will react with the strong oxidizing components in the plasma, and the catalyst will fall off. In addition, this way of loading the catalyst is difficult to protect the mesh electrode. The flatness of the plane leads to uneven discharge in the entire discharge area and an increase in the amount of ozone;

[0009] 4. Due to the relatively weak corona discharge intensity, the distance between the catalyst and the catalyst is relatively long when the catalyst is loaded on the other electrode, and the catalytic efficiency of the catalyst is reduced.

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