Multiple cone gas turbine burner

摘要

A multiple cone burner (1) comprising a swirl chamber (2) with conical airfoil elements (7) having fuel nozzles (12) at the pressure side (18) and/or at the suction side (19) and/or at the trailing edge (20), a lance (3) in the swirl chamber (2), a transition element (22) at the larger end of the swirl chamber (2), and a mixing tube (23) connected to the transition element (22) providing an almost completely circular air passage (24) between the transition element (22) and the mixing tube (23). Through the air passage (24), additional air is ejected into the mixing tube (23) substantially parallel to the inner mixing tube surface and axis (5).