Large-gap uniform dielectric barrier discharge plasma surface treatment device under atmospheric pressure

• Main Authors: LIU PENG, PAN YUNXIANG, PENG XINGCUI
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2020
• Subjects: ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS

The invention relates to a large-gap uniform dielectric barrier discharge plasma surface treatment device under atmospheric pressure. The treatment device comprises a closed reaction container, a working electrode arranged in the closed reaction container and a nanosecond pulse power supply (1) connected with the working electrode, wherein the working electrode comprises a plurality of outer-layercovering electrode media (6), low-voltage electrodes (4) and high-voltage electrodes (3), wherein the low-voltage electrodes (4) and the high-voltage electrodes (3) are distributed alternately; a fixing groove (7) used for fixing materials to-be treated is formed between adjacent electrodes; the closed reaction container comprises an air inlet (2) and an air outlet (5), and an S-shaped air flow channel is formed between the air inlet 2 and the air outlet 5. Compared with the prior art, uniform dielectric barrier discharge with the discharge gap larger than 5 mm can be achieved, proper gas canbe introduced in the disc