Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also...
Transcript of Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also...
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Turbine repairs by
LOCK-N-STITCH
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GE Gas turbine shell repaired in 1992 for Sicamore Co-Gen Near Bakersfield California. The unit is still in use. The crack
was through the outer bolt flange and was approximately 800mm long and 75mm thick.
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This gas turbine shell also belongs to Sicamore Co-Gen near Bakersfield California. The crack was about 100mm long and extended through a threaded hot-inspection hole. The repair
was completed in 1998 and the unit is still in service.
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This is the completed repair
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Small GE turbine shell with internal cracks. The repair was done In 2002 and is still in service.
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Dresser Rand steam turbine lower case, bottom side with several cracks.
The repair was done in 2001 and is still in service.
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Frame 7, GE steam turbine shell with a crack extending from a bolt hole. The crack had a previous weld repair attempt that
failed.
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The hole pattern for the L60 locks has been drilled across the crack. The locks were installed 125mm deep.
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The Locks are driven into the hole pattern to create strength across the crack.
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The locks are installed and ready to be machined flush
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The repair was completed in two days. LNS stitched the crack in 1999 and the unit is still in service.
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GE Steam turbine in Southern California Operated by AES Power.
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The upper shell was moved to the ground and blocked up.
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Crack looking up from underneath.
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Metal stitching the crack
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Using a portable drill press to drill the hole pattern for the Locks
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The repair was completed in early 2004.