Dielectric barrier discharge plasma device

Abstract

The dielectric barrier discharge plasma device comprises a dielectric barrier body with two open ends and a hollow interior, an inner electrode body is arranged in the dielectric barrier body, and a gap is reserved between the inner electrode body and the inner wall of the dielectric barrier body; the two ends of the inner electrode body are respectively provided with an electric conductor, and the electric conductors extend out of the dielectric barrier body. The dielectric barrier body is sleeved with an outer electrode body, and the outer electrode body and the inner electrode body correspond to each other in position. A quartz glass tube is used as a dielectric barrier, a stainless steel tube is arranged in the dielectric barrier to serve as an inner electrode body, a copper sleeve is sleeved outside the dielectric barrier to serve as an outer electrode body, and when a high-voltage power supply acts on the inner electrode body and the outer electrode body, a large-area discharge area is generated in a gap between the inner electrode body and the inner wall of the dielectric barrier body. When the pollution gas passes through the discharge area, because the plasma concentration of the discharge area is high, the pollution gas can be more fully contacted with the plasma of the discharge area to be purified, and the flow velocity is increased because of the throttling principle, so that the purification effect is further improved.

Description

technical field [0001] The invention relates to the technical fields of sewage treatment, air purification, food preservation and disinfection, in particular to a dielectric barrier discharge plasma device. Background technique [0002] With the development of society, the environmental pollution caused by human activities is becoming more and more serious. At present, the quality of the atmospheric environment is further deteriorating, and various gas pollutants generated by the increasing industrial waste gas, automobile exhaust gas and home decoration operations have begun to seriously threaten human health. [0003] For the current industrial waste gas treatment, there are dielectric barrier discharge technology and corona discharge technology. Dielectric barrier discharge has the characteristics of uniformity, dispersion and stability. The electromagnetic field in which the plasma is generated is strong, and the energy of active particles in the plasma is higher, which...

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the object of the present invention is to provide a dielectric barrier discharge plasma device, which is in the form of large-area ionization, and is used to solve the problem that the pollutants in the prior art cannot be fully combined with the plasma in the discharge area. Exposure to the problem leading to reduced decontamination effectiveness

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