Dielectric barrier discharge plasma device

By adopting a double-layer external electrode structure and primary filter module in the dielectric barrier discharge plasma device, the problems of external electrode pollution failure and uneven discharge are solved, extending the electrode life and improving the purification efficiency.

CN120390345AActive Publication Date: 2025-07-29SHANGHAI JIANGAN STAINLESS STEEL PROD CO LTD
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Patent Information

Application Number
CN202510785108.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-12
Publication Date
2025-07-29
Estimated Expiration
2045-06-12

AI Technical Summary

Technical Problem

In the existing dielectric barrier discharge plasma device, external electrodes are susceptible to contamination and failure, resulting in low purification efficiency and short electrode life, and discharge inequality affects efficiency.

Method used

The double-layer outer electrode structure is adopted, the inner layer is a stainless steel sleeve and the outer layer is a stainless steel powder filling layer. The interlayer is added to protect the outer electrode. The contamination source entering the device is initially filtered in combination with the primary filter module to maintain the stable position of the inner electrode.

Benefits of technology

It extends the service life of the external electrode, improves the stability and uniformity of discharge, enhances purification efficiency, and reduces maintenance frequency.

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Abstract

The invention relates to the technical field of plasmas, in particular to a dielectric barrier discharge plasma device which comprises a dielectric barrier body, an inner electrode body and an outer electrode body, the inner electrode body is located in the dielectric barrier body, and a gap exists between the inner electrode body and the dielectric barrier body; the outer electrode body is located on the outer side of the dielectric barrier body, and the outer electrode body comprises a first outer electrode layer and a second outer electrode layer; an interlayer is formed between the first outer electrode layer and the dielectric barrier, and the second outer electrode layer is arranged in the interlayer; by arranging the double-layer outer electrode body, the problem that the outer electrode loses efficacy due to pollution is avoided, and the discharge stability is improved.
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