Design Features
- The positive casing seal for piping that penetrates the casing allows thermal expansion while preventing gas blow-out.
- The positive linear retention system retains the insulation and the liner, with a design that ensures that the liner will remain firmly in place.
- The flex tube design ensures better flexibility to eliminate deformation and cracks during fast start-ups, upsets and transients.
- Tube to header welds are radial full penetration. This high quality weld allows the joints to handle fast transients and thermal shocks.
- The up-flow/down-flow economizer circuit increases feed-water velocity to achieve better heat transfer, which ensures good economizer performance.
- HRSG for un-fired, post fired and fresh air operational modes, even with quick change to fresh air operation upon a GT trip to minimize the transitory effects in the process.
- Quick change of operation.
- The possibility of designing these boilers with furnace including the deaerator inside the HRSG and providing three levels of pressure.
- Furnace design available for high demanding post-combustion levels.