Manufacturing method of electrodes with medium impeding discharging of plasma

Abstract

The invention discloses a manufacturing method of electrodes with a medium impeding discharging of plasma. The manufacturing method includes following steps: selecting either quartz tubes or ceramic tubes as an impeding medium; coating the inner wall of each of the quartz tubes or the ceramic tubes with a conductive layer, coating one ends of the inner walls with welding points fully, and coating the other ends with nothing, wherein thickness of the conductive coatings is 0.01mm; arranging the quartz tubes or the ceramic tubes parallelly or in a matrix. The defects of tube-wire electrode structure and flat-plate electrode structure are avoided, one conductive coating is arranged on the inner wall of each of the quartz tubes or the ceramic tubes, no air exists between the conductive coating and the corresponding inner wall, so that uniformity is high, applicable environment is wide, requirements on performance of a power source are low, and internal discharging is avoided; 2-3 tubes are parallelly arranged, so that the electrodes are suitable for purifying small space of refrigerators and air conditioners; multiple parallel electrodes are arranged in a staggered matrix, so that high-flow gas can be treated.

Description

technical field [0001] The invention relates to a low-temperature plasma, in particular to a method for making an electrode in which a medium hinders plasma discharge. Background technique [0002] Low-temperature plasma is the fourth state of matter after solid state, liquid state, and gas state. When the applied voltage reaches the breakdown voltage of the gas, the gas is broken down and a mixture including electrons, various ions, atoms, and free radicals is generated. body. Although the temperature of electrons is high during the discharge process, the temperature of heavy particles is very low, and the whole system presents a low-temperature state, so it is called low-temperature plasma. Active particles such as high-energy electrons and free radicals produced by low-temperature plasma interact with pollutants in the exhaust gas to decompose pollutant molecules in a very short period of time, and various subsequent reactions occur to achieve the purpose of decomposing ...

AI Technical Summary

Problems solved by technology

In terms of air purification and exhaust gas treatment, facing complex gas components, changing environments, and complex working conditions, there are defects and deficiencies in the structure of pipeline-type and flat-plate electrodes:

[0004] 1. Pipeline or flat plate structure, poor gas flow adaptability, large wind resistance, difficult to fully contact polluted gas and plasma field;

[0005] 2. Pipeline or flat plate structure, poor consistency between the electrode wire and the medium, there will be internal discharge, external ignition, sound or even burning;

[0006] 3. Pipeline or plate structure has high requirements on power supply performance and function, resulting in high power supply cost and poor stability and adaptability;

[0007] 4. Pipeline or flat structure, unable to handle large flow of gas such as industrial waste gas, not suitable for small spaces such as refrigerator air conditioning gas purification

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