INCORE INSTRUMENTATION CABLE ROUTING FOR PRESSURIZED WATER REACTOR
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United States of America Patent
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app pub date -
Apr 16, 2013
filing date -
Apr 18, 2012
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Abandoned
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Abstract
A pressure vessel includes upper and lower vessel sections joined by a flanged connection. A nuclear reactor core includes an array of fuel assemblies comprising fissile material. The nuclear reactor core is disposed in the lower vessel section. A side-entry vessel penetration is located at a side of the pressure vessel and passes through one of (i) a flange of the flanged connection and (ii) the lower vessel section. An incore instrument routing tube extends from the side-entry vessel penetration and enters the reactor core from above the reactor core. The incore instrument routing tube extends from the side-entry vessel penetration with a declination angle AE and includes a 90°−AE downward turn to enter the reactor core from above. The declination angle AE may be zero so that the routing tube extends horizontally from the side-entry vessel penetration and includes a 90° downward turn.
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