Exhaust from SGT6 5000F turbines

[JKALLPA]

Im having problems with my GT exhaust turbine because of combined cycle, we have had insulation detachment and it is a several problem since we have to shut down and repair my damper. I need information about the possible root...

 

[MikeHalloran]

I'd guess that it's gettin' too hot for whatever is attachin' the insulation.
So the insulation falls off, and what? ... fouls your damper?
Find a better way to attach the insulation, or make your damper more resistant to fouling by insulation.



Mike Halloran
Pembroke Pines, FL, USA

 

[rmw]

If you need further information about the root, you need to give more information about the problem.

rmw

 

[JKALLPA]

We have found insulation from Diverter Dumper breaks off, im talking about the liners (plates)... I think diverter's movement because of HRSG trips could be a problem?... plates detachment was found only at the front of the diverter ( not exhaust walls)

JC

 

[rmw]

Have you considered differential expansion of the various metal parts of the diverter damper? Is it at uniform tmeperature, or is there a rapid transition upon a trip?
rmw

 

[abeltio]

Are you burning gas fuel or liquid fuel?
Liquid fuel will break your heart...

How old (hours/starts) is the thing? Is this a base loaded or cyclic operation? Exhaust systems are very sensitive to cyclic operation.


saludos.
a.

 

[rmw]

Liquid fuel will break your bank.

rmw

 

[JKALLPA]

We are operating in combined cycle since April 2012, we use natural gas as fuel and we are on cyclic operation ... there are a rapid transition upon a trip... Is it something normal? I'd like to know about your experiences.

JC