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Title: Nuclear reactor alignment plate configuration

An alignment plate that is attached to a core barrel of a pressurized water reactor and fits within slots within a top plate of a lower core shroud and upper core plate to maintain lateral alignment of the reactor internals. The alignment plate is connected to the core barrel through two vertically-spaced dowel pins that extend from the outside surface of the core barrel through a reinforcement pad and into corresponding holes in the alignment plate. Additionally, threaded fasteners are inserted around the perimeter of the reinforcement pad and into the alignment plate to further secure the alignment plate to the core barrel. A fillet weld also is deposited around the perimeter of the reinforcement pad. To accomodate thermal growth between the alignment plate and the core barrel, a gap is left above, below and at both sides of one of the dowel pins in the alignment plate holes through with the dowel pins pass.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1117865
Report Number(s):
8,638,900
11/855,196
DOE Contract Number:
FC07-05ID14636
Resource Type:
Patent
Resource Relation:
Patent File Date: 2007 Sep 14
Research Org:
Westinghouse Electric Company LLC, Cranberry Township, PA, USA
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS