Modernising gas fired power plant boiler damper drives and damper bearings

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Courtesy of Rotork

Sector: Power Generation
Category: Fluid Power Actuators, Services
Products: PM/DM, Retrofit

The challenge of modernising the instrumentation on an old utility boiler can be overwhelming, especially when the boiler was originally commissioned in 1964. Power utility base load preference has historically been the domain of the larger coal fired boilers. That has been the desired management approach for decades in the US. With the recent available abundance of inexpensive natural gas the emphasis has shifted to some degree to modernising gas fired boilers. Tightening emissions restrictions exerted by the EPA and local regulators make this an even more important avenue to explore.

The Reason
This particular tangentially fired ('T-Fired') power boiler hosts 12 Auxiliary Air dampers and 12 Fuel Air dampers, but the drives were failing in their performance and were simply worn out beyond their service life.

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