Download - Mammoet BV

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13.11.2012 Views

Power “To lift the old steam generators off their foundation” 18 19 Diablo Canyon Nuclear Power Plant The Diablo Canyon Steam Generator Replacement Project required the exchange of four steam generators within the facility. Mammoet crews completed the complex handling sequence of nine steps per generator well ahead of schedule despite the challenges presented. The new Mammoet Containerized Winch System was installed in the containment unit to lift the old steam generators off their foundation. Unlike previous replacement projects, the generators were brought out of containment on the second floor, approximately six meters above ground level utilizing a skid system. After placing the units on SPMTs, they were moved through the building and lowered onto a separate set of SPMTs at ground level. Finally, the old units were transported to their storage location. The new generators were installed by reversing the removal process.

Photographs courtesy of Robert de Haas Power LOCATION: SAN LUIS OBISPO COUNTY, CALIFORNIA, USA JOB: EXCHANGING FOUR STEAM GENERATORS CHALLENGE: MINIMAL CLEARANCES AND LOGISTICAL COORDINATION IN A NUCLEAR ENVIRONMENT “Exchanging four steam generators”

Power<br />

“To lift the old<br />

steam generators<br />

off their<br />

foundation”<br />

18 19<br />

Diablo Canyon Nuclear Power Plant<br />

The Diablo Canyon Steam Generator Replacement Project required the<br />

exchange of four steam generators within the facility. <strong>Mammoet</strong> crews<br />

completed the complex handling sequence of nine steps per generator well<br />

ahead of schedule despite the challenges presented.<br />

The new <strong>Mammoet</strong> Containerized Winch System was installed in the containment unit<br />

to lift the old steam generators off their foundation. Unlike previous replacement projects,<br />

the generators were brought out of containment on the second floor, approximately six<br />

meters above ground level utilizing a skid system. After placing the units on SPMTs, they<br />

were moved through the building and lowered onto a separate set of SPMTs at ground<br />

level. Finally, the old units were transported to their storage location. The new generators<br />

were installed by reversing the removal process.

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