Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also...

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Turbine repairs by LOCK-N-STITCH

Transcript of Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also...

Page 1: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

Turbine repairs by

LOCK-N-STITCH

Page 2: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

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.

Page 3: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

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.

Page 4: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

This is the completed repair

Page 5: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

Small GE turbine shell with internal cracks. The repair was done In 2002 and is still in service.

Page 6: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

Dresser Rand steam turbine lower case, bottom side with several cracks.

The repair was done in 2001 and is still in service.

Page 7: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

Frame 7, GE steam turbine shell with a crack extending from a bolt hole. The crack had a previous weld repair attempt that

failed.

Page 8: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

The hole pattern for the L60 locks has been drilled across the crack. The locks were installed 125mm deep.

Page 9: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

The Locks are driven into the hole pattern to create strength across the crack.

Page 10: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

The locks are installed and ready to be machined flush

Page 11: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

The repair was completed in two days. LNS stitched the crack in 1999 and the unit is still in service.

Page 12: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

GE Steam turbine in Southern California Operated by AES Power.

Page 13: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

The upper shell was moved to the ground and blocked up.

Page 14: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

Crack looking up from underneath.

Page 15: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

Metal stitching the crack

Page 16: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

Using a portable drill press to drill the hole pattern for the Locks

Page 17: Turbine repairs by - Metal Stitching & Thread - LOCK-N · PDF fileThis gas turbine shell also belongs to Sicamore Co-Gen near ... extended through a threaded hot-inspection hole. ...

The repair was completed in early 2004.