Upper internals arrangement for a pressurized water reactor
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United States of America Patent
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Jul 9, 2013
Grant Date -
Oct 16, 2008
app pub date -
Apr 10, 2007
filing date -
Apr 10, 2007
priority date (Note) -
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Abstract
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.
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