PRESSURIZED WATER REACTOR WITH REACTOR COLLANT PUMPS COMPRISING TURBO PUMPS DRIVEN BY EXTERNAL PUMPS
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United States of America Patent
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app pub date -
Apr 15, 2013
filing date -
Apr 16, 2012
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Abandoned
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Abstract
A pressurized water reactor (PWR) includes a pressure vessel containing a nuclear core comprising a fissile material immersed in primary coolant water. A reactor coolant pump (RCP) is configured to pump primary coolant water in the pressure vessel. The RCP includes a hydraulically driven turbo pump disposed in the pressure vessel. The turbo pump includes an impeller performing pumping of primary coolant water in the pressure vessel, and a hydraulically driven turbine mechanically coupled with the impeller to drive the impeller. The RCP may further include a hydraulic pump configured pump primary coolant water to generate hydraulic working fluid that drives the hydraulically driven turbine. The hydraulic pump may be a canned pump having a casing defining a portion of the pressure boundary of the pressure vessel. The casing includes electrical feedthroughs delivering electrical power to the hydraulic pump.
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