Dielectric barrier discharge plasma generator

Abstract

The invention discloses a dielectric barrier discharge plasma generator, which belongs to the technical field of plasma generators, and is characterized in that a metal coating formed in an insulating tube discharges in an atmospheric pressure E mode, and the metal coating directly prepared on the inner wall of the insulating tube is used as an electrode assembly of the dielectric barrier discharge plasma generator. By adjusting the preparation time and the moving speed of the metal wire and the coil, the high-precision film thickness of the metal coating can be achieved, and as the metal coating prepared in situ is adopted in the insulating tube, compared with other technologies, the coating and the inner wall of the insulating tube are combined more tightly and more uniformly, and the service life of the insulating tube is prolonged. Therefore, the problems that a gap exists between the metal coating and the inner wall of the insulating tube, or the metal coating is poor in binding force with the inner wall of the insulating tube and easy to fall off are solved; due to the fact that the metal coating and the insulating tube are attached more tightly and reliably, the density of generated plasmas and the concentration of active particles are higher under the condition that the same energy is input through the dielectric barrier discharge plasma generator.

Description

technical field [0001] The invention relates to the technical field of plasma generators, in particular to a dielectric barrier discharge plasma generator. Background technique [0002] Microorganisms are ubiquitous in nature, including pathogens harmful to human body such as bacteria and harmful microorganisms. Therefore, it is necessary to provide a sterilization method and a sterilization device to eliminate pathogens harmful to human body. At present, traditional sterilization or antivirus methods mainly include: (1) High temperature disinfection, mainly using boiling water, high temperature cabinets, etc. (2) Ozone sterilization mainly uses ozone to sterilize, but when using ozone to sterilize, high-concentration ozone will cause harm to the human body, so when using ozone to sterilize, it is necessary to The treatment area is separated from people in time or space; (3) Ultraviolet sterilization mainly uses ultraviolet light to sterilize. When ultraviolet sterilization...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a dielectric barrier discharge plasma generator, which aims to solve the problem that the metal electrode in the dielectric tube of the existing tubular dielectric barrier discharge plasma generator is not in close contact with the dielectric tube, or the metal coating is easy to fall off, resulting in a The weakening of the plasma discharge between them, the low efficiency of energy utilization, and the poor stability of the long-term continuous operation of the discharge device, etc.

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