STEAM PLASMOTRON Russian patent published in 2005 - IPC

FIELD: plasma technology, possibly plasma cutting, surfacing, metallurgy, plasma chemistry and so on.

SUBSTANCE: steam plasmotron includes housing. In housing electrode holder with electrode secured to it is placed. Nozzle is secured to housing with gap relative to electrode for forming arc generation chamber. Cooling system in the form of ducts and branch pipes is provided in housing. Plasmotron also includes water supply branch pipe with regulation unit; steam generator having heating member, mounted on non-working end of plasmotron and coupled with arc generation chamber and with cooling system. In order to improve strength of nozzle and electrode and to increase cutting speed due to intensified heat removal out of them, nozzle is provided with protection cover mounted with gap relative to nozzle. Gap value at working end of nozzle is sufficient for cooling in steam generation mode. Outlet of gap is turned to working zone of plasmotron. At inlet of gap there is capillary-porous structure having water supply and steam discharge ducts and connected with heat removal gap at working end of nozzle. Electrode is provided with capillary-porous structure having water supply and steam discharge ducts and arranged inside it.

EFFECT: improved strength of nozzle and electrode, increased cutting speed.

4 cl, 2 dwg