Waste gas diverter unit between gas turbine and waste heat boiler

摘要

The device has a diverter (2) between gas turbine diffusor (1), boiler diffusor (3), and exit (5) to waste gas flue. The diverter has an integrated one-armed diverter blade (7), which is pivoted between a position closing the transfer to the exit, and a position sealing the transfer to the boiler diffusor. The blade has a convex upper face (8) and a concave lower face (9). Overflow apertures (16) between blade shaft (13) and cross-wall (15) have a flow profile, so that in regulator position of the blade, a downward-directed gas deflection flow (GAS) is created. This is deflected to the boiler diffusor by a gas underflow (GUS) passing between free blade edge (11) and opposite diverter wall (4). The two gas flows form an even profile (GAP) across the cross-section of the boiler diffusor.