ELECTRIC-ARC PLASMATRON Russian patent published in 2015 - IPC H05H1/26 

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering and particularly to electric heating of gases with an arc discharge, and can be used in plasmatrons when conducting various processes, particularly for heating molten metal in an intermediate ladle of a continuous-casting machine in the metallurgical industry, as well as scientific research of high-temperature processes. In an electric-arc plasmatron, having water-cooled cylindrical inner and coaxial outer electrodes, as well as a swirler in the annular channel in between, an arched cylindrical chamber is placed at the end of the inner electrode. The outer electrode is in the form of a cup with an expanding outlet channel at its bottom, which is connected to the cavity of the cylindrical chamber of the inner electrode through a radial gap between the end surfaces of the electrodes. The diameter of the entry section of the expanding outlet channel of the outer electrode is less than the diameter of the cylindrical chamber of the inner electrode.

EFFECT: longer service life of the plasmatron and higher current passing through the plasmatron.

1 dwg