COOLING PIPE, ELECTRODE HOLDER AND ELECTRODE FOR PLASMA-ARC BURNER AND APPARATUS CONSISTING OF SAME AND PLASMA-ARC BURNER HAVING SAME Russian patent published in 2014 - IPC H05H1/34 

FIELD: physics.

SUBSTANCE: group of inventions relates to plasma engineering. The cooling pipe for a plasma-arc burner includes an elongated body having, at the open end of the electrode and passing through said body, a coolant channel, wherein at said end the wall of the cooling pipe has a roller-shaped thickening directed inward and/or outward. An apparatus from the cooling pipe for the plasma-arc burner includes an elongated body with a rear end detachably connected to an electrode holder for the plasma-arc burner and a coolant channel passing through said body. The electrode holder for the plasma-arc burner includes an elongated body with an end for holding an electrode and a cavity, wherein on the outer surface of the cooling pipe there is at least one protrusion for alignment thereof in the electrode holder.

EFFECT: preventing overheating of the electrode of a plasma-arc burner.

31 cl, 17 dwg