Title :
Vacuum/gas handling systems for CPRF/ZTH
Author :
Downing, J.N. ; Newman, E.W. ; Pacheco, M.D. ; Iko, L.J. ; Kasi, R.J.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
The ZTH high-vacuum system is described. It is a modular design in which each pumping stack has a dedicated roughing system and a control-system interface. Each high-vacuum pumping station is electrically grounded through the vacuum liner and isolated from all other grounds. Large magnetic fields near the ZTH during operation require the turbomolecular pumps to be located approximately 5 m from the center of the machine. A separate roughing system is used to rough the vessel from atmospheric pressure. The gas-handling system supplied high-purity gases for continuous gas flow, gas injection, and discharge cleaning procedures. Control and interlock functions are provided by a subsystem controller dedicated to the vacuum/gas handling systems
Keywords :
fusion reactor instrumentation; fusion reactors; vacuum pumps; CPRF/ZTH; ZTH high-vacuum system; atmospheric pressure; continuous gas flow; control functions; control-system interface; dedicated roughing system; discharge cleaning procedures; gas injection; gas-handling system; high-purity gases; high-vacuum pumping station; interlock functions; pumping stack; subsystem controller; turbomolecular pumps; vacuum liner; vacuum/gas handling systems; Bellows; Coils; Contamination; Control systems; Monitoring; Pumps; Toroidal magnetic fields; Vacuum systems; Valves; Welding;
Conference_Titel :
Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on
Conference_Location :
Knoxville, TN
DOI :
10.1109/FUSION.1989.102240
