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Title: Nuclear reactor apparatus

A lifting, rotating and sealing apparatus for nuclear reactors utilizing rotating plugs above the nuclear reactor core. This apparatus permits rotation of the plugs to provide under the plug refueling of a nuclear core. It also provides a means by which positive top core holddown can be utilized. Both of these operations are accomplished by means of the apparatus lifting the top core holddown structure off the nuclear core while stationary, and maintaining this structure in its elevated position during plug rotation. During both of these operations, the interface between the rotating member and its supporting member is sealingly maintained.
Authors:
 [1]
  1. (Ruffs Dale, PA)
Publication Date:
OSTI Identifier:
863002
Report Number(s):
US 4071402
DOE Contract Number:
E(11-1)-3046
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
nuclear; reactor; apparatus; lifting; rotating; sealing; apparatus; nuclear; reactors; utilizing; rotating; plugs; nuclear; reactor; core; apparatus; permits; rotation; plugs; provide; plug; refueling; nuclear; core; provides; means; positive; top; core; holddown; utilized; operations; accomplished; means; apparatus; lifting; top; core; holddown; structure; nuclear; core; stationary; maintaining; structure; elevated; position; plug; rotation; operations; interface; rotating; supporting; sealingly; maintained; reactor apparatus; rotating plugs; sealing apparatus; apparatus permits; core holddown; core holddown; nuclear core; nuclear core; nuclear reactors; nuclear reactor; nuclear reactor; nuclear reactor; reactor core; rotating plug; top core; top core; holddown structure; reactors utilizing; utilizing rotating; positive top /376/976/