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Title: Nuclear reactor

Abstract

A nuclear reactor including two rotatable plugs and a positive top core holddown structure. The top core holddown structure is divided into two parts: a small core cover, and a large core cover. The small core cover, and the upper internals associated therewith, are attached to the small rotating plug, and the large core cover, with its associated upper internals, is attached to the large rotating plug. By so splitting the core holddown structures, under-the-plug refueling is accomplished without the necessity of enlarging the reactor pressure vessel to provide a storage space for the core holddown structure during refueling. Additionally, the small and large rotating plugs, and their associated core covers, are arranged such that the separation of the two core covers to permit rotation is accomplished without the installation of complex lifting mechanisms.

Inventors:
 [1]
  1. (Ruffsdale, PA)
Issue Date:
OSTI Identifier:
863304
Patent Number(s):
4142935
Assignee:
Westinghouse Electric Corp. (Pittsburgh, PA) OSTI
DOE Contract Number:  
AT(11-1)-3046
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
nuclear; reactor; including; rotatable; plugs; positive; top; core; holddown; structure; divided; cover; upper; internals; associated; therewith; attached; rotating; plug; splitting; structures; under-the-plug; refueling; accomplished; necessity; enlarging; pressure; vessel; provide; storage; space; additionally; covers; arranged; separation; permit; rotation; installation; complex; lifting; mechanisms; rotating plugs; core holddown; reactor including; reactor pressure; pressure vessel; nuclear reactor; associated therewith; upper internals; rotatable plug; rotating plug; storage space; top core; core cover; holddown structure; positive top; /376/976/

Citation Formats

Wade, Elman E. Nuclear reactor. United States: N. p., 1979. Web.
Wade, Elman E. Nuclear reactor. United States.
Wade, Elman E. Mon . "Nuclear reactor". United States. https://www.osti.gov/servlets/purl/863304.
@article{osti_863304,
title = {Nuclear reactor},
author = {Wade, Elman E.},
abstractNote = {A nuclear reactor including two rotatable plugs and a positive top core holddown structure. The top core holddown structure is divided into two parts: a small core cover, and a large core cover. The small core cover, and the upper internals associated therewith, are attached to the small rotating plug, and the large core cover, with its associated upper internals, is attached to the large rotating plug. By so splitting the core holddown structures, under-the-plug refueling is accomplished without the necessity of enlarging the reactor pressure vessel to provide a storage space for the core holddown structure during refueling. Additionally, the small and large rotating plugs, and their associated core covers, are arranged such that the separation of the two core covers to permit rotation is accomplished without the installation of complex lifting mechanisms.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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