Gas turbine has cooling air transfer system with several tubular nozzles which are independently arranged in a circle inside a chamber, encompass the rotor and can discharge cooling air

摘要

The gas turbine has a cooling air transfer system which has several tubular nozzles (11) which are independently arranged in a circle inside a chamber (42), encompass a rotor (41) and can discharge cooling air. A sealing disc (3) has cooling lines (4) arranged in a circle around the rotor axis so that they can receive cooling air discharged from the nozzles. Each nozzle is arranged in such a way that an axis of the nozzle constantly crosses an axis of the rotor at an angle of inclination in a rotational direction of the sealing disc.