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Title: Pressurized water reactor flow skirt apparatus

A pressurized water reactor vessel having a flow skirt formed from a perforated cylinder structure supported in the lower reactor vessel head at the outlet of the downcomer annulus, that channels the coolant flow through flow holes in the wall of the cylinder structure. The flow skirt is supported at a plurality of circumferentially spaced locations on the lower reactor vessel head that are not equally spaced or vertically aligned with the core barrel attachment points, and the flow skirt employs a unique arrangement of hole patterns that assure a substantially balanced pressure and flow of the coolant over the entire underside of the lower core support plate.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1245417
Report Number(s):
9,305,668
12/027,341
DOE Contract Number:
FC07-05ID14636
Resource Type:
Patent
Resource Relation:
Patent File Date: 2008 Feb 07
Research Org:
Westinghouse Electric Company LLC, Cranberry Township, PA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 42 ENGINEERING