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Upper internals arrangement for a pressurized water reactor

United States Patent

July 9, 2013
View the Complete Patent at the US Patent & Trademark Office
In a pressurized water reactor with all of the in-core instrumentation gaining access to the core through the reactor head, each fuel assembly in which the instrumentation is introduced is aligned with an upper internals instrumentation guide-way. In the elevations above the upper internals upper support assembly, the instrumentation is protected and aligned by upper mounted instrumentation columns that are part of the instrumentation guide-way and extend from the upper support assembly towards the reactor head in hue with a corresponding head penetration. The upper mounted instrumentation columns are supported laterally at one end by an upper guide tube and at the other end by the upper support plate.
Singleton; Norman R. (Murrysville, PA), Altman; David A. (Pittsburgh, PA), Yu; Ching (Murrysville, PA), Rex; James A. (Trafford, PA), Forsyth; David R. (Cheswick, PA)
Westinghouse Electric Company LLC (Cranberry Township, PA)
11/ 733,248
April 10, 2007
GOVERNMENT INTEREST This invention was made with government support under Contract No. DE-FC07-051D14636 awarded by the Department of Energy. The government has certain rights to this invention.