BWR series pump recirculation system
AssigneeGeneral Electric Company
InventorCharles W. Dillmann
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Abstract
A recirculation system is disclosed for driving reactor coolant water contained in an annular downcomer defined between a reactor vessel and a reactor core spaced radially inwardly therefrom. The system includes a plurality of circumferentially spaced pumps disposed in the downcomer, each pump including an inlet for receiving coolant water from the downcomer as pump inlet flow, and an outlet for discharging the pressurized water. The recirculation system firstly increases the pressure of the pump inlet flow at the pump inlet before being sucked into the pump for being further pressurized by the pump.
Claims9
A recirculation system for driving reactor coolant water contained in an annular downcomer defined between a boiling water reactor vessel and a reactor core spaced radially inwardly therefrom comprising:
- a plurality of circumferentially spaced second pumps disposed in said downcomer, each including an inlet for receiving from said downcomer a portion of said coolant water as pump inlet flow, and an outlet for discharging said pump inlet flow pressurized in said second pump as pump outlet flow;
- and
- means for increasing pressure of said pump inlet flow at said pump inlet including a first pump disposed in series flow with said second pump for first receiving said pump inlet flow from said downcomer and discharging to said second pump said pump inlet flow pressurized in said first pump.
Dependencies are inferred from the claim text.