REACTOR LIQUID CIRCULATING PUMP ARRANGEMENT

摘要

A pump circulating a radioactive liquid in a reactor container has a housing including a support tube projecting into the reactor container. A shaft is mounted in the support tube, and has a pump wheel located in the container. The shaft can be lowered so that sealing faces of the pump wheel and support tube abut each other, and communication between container and pump housing is interrupted. In this position, the liquid can be discharged from the pump housing for servicing a motor in the same driving the shaft.