Barrier glow discharging plasma generator and generation with atmosphere medium

Abstract

A atmospheric pressure medium bar glowing discharge plasma generating equipment and the method, the equipment including the electric liquid electrode and the inert gases source, the electric liquid electrode setting in the outer layer of the double-decked medium material tube, the inner layer of the double-decked medium material tube connect with the inert gases source and has electrode stick that discharge with the electric liquid electrode by the voltage action, the electrode stick, the high voltage electrical source and the electric liquid electrode form a loop. The invention avoid reflecting the plasma to lead the pulling arc phenomenon by use the new atmospheric pressure medium bar discharge equipment that the electric liquid is the outer electrode, also the water liquor can cooling the system and reduce the energy consumption; the liquid electrode avoid the medium break that cause by the difference of the expanding quotiety between the medium and the heated metal electrode, extend the using longevity.

Description

technical field [0001] The invention relates to an atmospheric pressure dielectric barrier glow discharge plasma generation method and device. Background technique [0002] In traditional plasma research, plasma generation under vacuum conditions has always occupied a dominant position. Recently, the atmospheric pressure plasma source has attracted more and more attention of scientific researchers because of its advantages such as no need for expensive vacuum devices, simple system, and convenient operation. So far, many atmospheric pressure plasma discharge sources have been designed, and their frequencies range from 50 Hz of direct current to 2.45 GHz of microwave. These discharge sources have shown good application prospects, such as for sterilization, ozone generation, plasma display screen, surface modification, waste water and waste gas treatment, etc. However, the external electrodes of these discharge systems are all metal, and are covered or plated on the surface ...

AI Technical Summary

Problems solved by technology

However, the external electrodes of these discharge systems are all metal, and are covered or plated on the surface of the dielectric layer. Due to the difference in expansion coefficient between the dielectric layer and the metal, the dielectric layer is easily broken or the metal layer falls off during the discharge process. On the other hand, using this When the torch is used to process irregular materials, such as for the modification of the inner surface of the tube, the reflected plasma will short-circuit the two electrodes and generate a very hot plasma arc, which will burn the modified materials, especially organic materials.

Therefore, it is still difficult to successfully realize the industrialization of these devices.

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