In the original design the Inconel leaf seal connecting the exhaust diffuser to the HRSG inlet is very close to the end bearing support tunnel. DEKOMTE offers an innovative, integrated solution that gives clearance and reduces heat radiation, to protect the lubricating oil and instrumentation supplies.

DEKOMTE designed, manufactured and turnkey installed an integrated concept of frame, fabric, convectors and external insulation system. Both solutions were designed to integrate with the new cold casing silencer supplied and installed by Braden during the same outage.

DEKOMTE have worked on an engineering solution which surpasses the lone function of the fabric component, and considers how to develop a free envelope of space allowing movement of the duct.

Originally built as a baseload power station, Cartagena’s operating equipment is not designed for high cycling. DEKOMTE proposed a bolted collar fabric expansion joint solution, that integrates to the HRSG cold casing and maintains a high cyclic capability, gas sealing penetration seal.

The original design consisted of three independent penetration seals within close proximity to each other, whereas the new design focuses on the insulation integrity in the casing and around each nozzle in a staggered penetration seal design.

The Springerville ash hopper dipper trough was upgraded with a DEKOMTE dry seal expansion joint retrofit, incorporating a new drip shield, flow plate, fabric joint, backing bars and inlet & outlet frames.