GUIDE VANE SUPPORT

摘要

Disclosed is a gas turbine group comprising at least one row of guide vanes (52) whose guide vane support (51) is provided for supplying different vanes with different cooling air mass flow rates such that especially the non-homogeneous hot gas temperature distribution in the turbines of gas turbine groups encompassing silo-type combustion chambers (6) can be taken into account. The guide vane supports (51) comprise receiving devices (511) for a plurality of guide vanes (52), at least two inlets (53, 54) for delivering cooling air to the guide vanes, and means for throttling (63, 64) a cooling air flow through an inlet. At least one first inlet (53) is provided for delivering cooling air to at least one first guide vane while at least one second inlet (54) is provided for feeding cooling air to at least one second guide vane. The throttling means (63) in the at least one first inlet (53) and the throttling means (64) in the at least one second inlet (54) have different coefficients of pressure loss.