초록 ▼

Elongated coolant pumps suspended under steam generators within containment in a power plant with limited access space, are removed and replaced by an elongated maintenance cart with an elongated opening along one side in which the motor is received. Rollers support the cart for conveying the elonga

Elongated coolant pumps suspended under steam generators within containment in a power plant with limited access space, are removed and replaced by an elongated maintenance cart with an elongated opening along one side in which the motor is received. Rollers support the cart for conveying the elongated motor in an upright position out from under the steam generator and onto an elevator. The elevator is lowered to transfer support of the cart and motor through trunnions to saddles straddling the elevator for rotation of the cart to a generally horizontal position. The elevator then raises the horizontally disposed cart carrying the motor to a higher floor where it is rolled off the elevator and out through the auxiliary equipment hatch.

대표청구항 ▼

A service apparatus for servicing an inverted pump installed above a floor and beneath a steam generator in a power plant with limited access, said pump having a pump casing with a generally downwardly facing pump casing flange, and a depending elongated pump motor having a motor flange secured to s

A service apparatus for servicing an inverted pump installed above a floor and beneath a steam generator in a power plant with limited access, said pump having a pump casing with a generally downwardly facing pump casing flange, and a depending elongated pump motor having a motor flange secured to said pump casing flange; said service apparatus comprising: a maintenance cart including: an elongated frame having a bottom end and elongated sides with an elongated opening along one side within which said elongated pump motor is received; support means for supporting said pump motor on said frame within said elongated opening with said frame in an upright position, and for supporting said pump motor on said frame within said elongated opening with said elongated frame in a generally horizontal position; and roller means mounted on said cart for translating said frame in said upright position and for translating said frame in said generally horizontal position.