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Title: Pressurized water reactor flow skirt apparatus

Patent ·
OSTI ID:1245417
; ; ;

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.

Research Organization:
Westinghouse Electric Company LLC, Cranberry Township, PA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC07-05ID14636
Assignee:
Westinghouse Electric Company LLC (Cranberry Township, PA)
Patent Number(s):
9,305,668
Application Number:
12/027,341
OSTI ID:
1245417
Resource Relation:
Patent File Date: 2008 Feb 07
Country of Publication:
United States
Language:
English

References (6)

Pressurized water reactor flow arrangement patent December 1985
Apparatus and process for providing an alternate coolant path in the core of a nuclear reactor patent March 1987
Pressurized water reactor having improved calandria assembly patent July 1988
Apparatus for suppressing formation of vortices in the coolant fluid of a nuclear reactor and associated method patent November 1993
Shadow shielding patent July 1995
Pressurized-water reactor with individually adapted pressure distribution in the coolant patent April 1997

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