Boiler operating above design temperature
Boiler operating above design temperature
(OP)
I have a water tube boiler with a superheater that is designed for 60,000 lb/hr, 650 deg F at 400-psig. I have noticed that they have operated the boiler in the past at 750 deg F. Should I have anything to worry about? The records show they have only done this once for a 6 hour period. The material is SA213 T22 which has boiler applications up to 1100 to 1200 deg F.
Is there anything to worry about when boiler is above desin temp? my load was light at 20,000 lb/hr and pressure was around 400-psig.
Is there anything to worry about when boiler is above desin temp? my load was light at 20,000 lb/hr and pressure was around 400-psig.





RE: Boiler operating above design temperature
RE: Boiler operating above design temperature
RE: Boiler operating above design temperature
RE: Boiler operating above design temperature
RE: Boiler operating above design temperature
If the transfer pipe is SA335 P11, the allowable stress drops from 15.4 ksi at 650 F to 14.8 ksi at 750 F.
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RE: Boiler operating above design temperature
RE: Boiler operating above design temperature