Apparatus and method for servicing an elongated suspended pump motor in an electric power plant with limited access

Patent · Sat Jan 01 00:00:00 EST 1994

OSTI ID:869266

Chavez, Rossemary V ^[1]; Ekeroth, Douglas E ^[2]; Johnson, F Thomas ^[3]; Matusz, John M ^[4]

---

1. Monroeville, PA
2. Delmont, PA
3. Baldwin Boro, PA
4. Plum Boro both of Allegheny County, PA

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.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: AC03-90SF18495
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 5307386
• OSTI ID: 869266
• Country of Publication: United States
• Language: English

Related Subjects

apparatus
method
servicing
elongated
suspended
pump
motor
electric
power
plant
limited
access
coolant
pumps
steam
generators
containment
space
removed
replaced
maintenance
cart
received
rollers
support
conveying
upright
position
generator
elevator
lowered
transfer
trunnions
saddles
straddling
rotation
horizontal
raises
horizontally
disposed
carrying
floor
rolled
auxiliary
equipment
hatch
steam generators
auxiliary equipment
electric power
steam generator
power plant
horizontal position
horizontally disposed
pump motor
coolant pump
coolant pumps
upright position
limited access
/376/