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Title: Control rod drive for reactor shutdown

A means for rapidly shutting down or scramming a nuclear reactor, such as a liquid metal-cooled fast breeder reactor, and serves as a backup to the primary shutdown system. The control rod drive consists basically of an in-core assembly, a drive shaft and seal assembly, and a control drive mechanism. The control rod is driven into the core region of the reactor by gravity and hydraulic pressure forces supplied by the reactor coolant, thus assuring that common mode failures will not interfere with or prohibit scramming the reactor when necessary.
Authors:
 [1] ;  [2] ;  [2] ;  [1]
  1. (Los Gatos, CA)
  2. (San Jose, CA)
Publication Date:
OSTI Identifier:
862454
Report Number(s):
US 3933581
US patent application 05/476,173
DOE Contract Number:
AT(04-3)-893
Resource Type:
Patent
Research Org:
General Electric Co., Sunnyvale, Calif. (USA). Breeder Reactor Dept.
Country of Publication:
United States
Language:
English
Subject:
control; rod; drive; reactor; shutdown; means; rapidly; shutting; scramming; nuclear; reactor; liquid; metal-cooled; fast; breeder; reactor; serves; backup; primary; shutdown; control; rod; drive; consists; basically; in-core; assembly; drive; shaft; seal; assembly; control; drive; mechanism; control; rod; driven; core; region; reactor; gravity; hydraulic; pressure; forces; supplied; reactor; coolant; assuring; common; mode; failures; interfere; prohibit; scramming; reactor; liquid metal-cooled; pressure forces; control drive; common mode; drive mechanism; hydraulic pressure; rod drive; rod drive; seal assembly; breeder reactor; reactor coolant; fast breeder; drive shaft; control rod; control rod; control rod; nuclear reactor; liquid metal; reactor shutdown; core region; core assembly; cooled fast; metal-cooled fast /376/976/