EP 0517735 B1 19951227 - PROCESS FOR STABLE OPERATION OF A PLASMATRON WITH STEAM AS THE PLASMA GAS
Title (en)
PROCESS FOR STABLE OPERATION OF A PLASMATRON WITH STEAM AS THE PLASMA GAS
Title (de)
VERFAHREN ZUM STABILEN BETRIEB EINES PLASMATRONS MIT WASSERDAMPF ALS PLASMAGAS
Title (fr)
PROCEDE DE FONCTIONNEMENT STABLE D'UN PLASMATRON A VAPEUR D'EAU COMME GAZ DE PLASMA
Publication
Application
Priority
- DD 33814590 A 19900226
- EP 9100348 W 19910226
Abstract (en)
[origin: US5498826A] PCT No. PCT/EP91/00348 Sec. 371 Date Mar. 1, 1993 Sec. 102(e) Date Mar. 1, 1993 PCT Filed Feb. 26, 1991 PCT Pub. No. WO91/13532 PCT Pub. Date Sep. 5, 1991.The present invention refers to a plasmatron as well as to a process for stable operation of plasmatrons with steam as the plasma gas, in the case of which the operational fluctuations which are typical of steam plasmas as well as the increased degree of electrode erosion are to be avoided. In accordance with the present invention, this is achieved on the basis of a limitation of electrode cooling by using hot water as a coolant having a temperature of at least 80 DEG C. If necessary, it is possible to use, on the one hand, hot water cooling and to exclude, on the other hand, a condensation of the steam on the electrodes by admixing a gas which will lower the condensation temperature of the steam.
IPC 1-7
IPC 8 full level
A62D 3/19 (2007.01); C10G 9/00 (2006.01); C10J 3/00 (2006.01); C10J 3/02 (2006.01); C10J 3/46 (2006.01); F23G 5/00 (2006.01); F23G 5/10 (2006.01); H05H 1/28 (2006.01); A62D 101/22 (2007.01)
CPC (source: EP US)
A62D 3/19 (2013.01 - EP US); H05H 1/28 (2013.01 - EP US); A62D 2101/22 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
WO 9113532 A1 19910905; AT E132316 T1 19960115; DD 299613 A7 19920430; DE 59107163 D1 19960208; DK 0517735 T3 19960318; EP 0517735 A1 19921216; EP 0517735 B1 19951227; ES 2084155 T3 19960501; FI 923813 A0 19920825; FI 923813 A 19920825; GR 3019093 T3 19960531; JP H05506536 A 19930922; JP H0821474 B2 19960304; RU 2067790 C1 19961010; US 5498826 A 19960312
DOCDB simple family (application)
EP 9100348 W 19910226; AT 91904221 T 19910226; DD 33814590 A 19900226; DE 59107163 T 19910226; DK 91904221 T 19910226; EP 91904221 A 19910226; ES 91904221 T 19910226; FI 923813 A 19920825; GR 960400513 T 19960223; JP 50422091 A 19910226; SU 5053005 A 19910226; US 32359094 A 19941017