Patent ID: 9097426
Filing Date: 2015-08-04
Classification: F02C,F23D,F23R

Abstract:
1. A burner of a combustion chamber of a gas turbine installation with sequential combustion, the burner comprising: a single burner wall which encloses a single mixing chamber of the burner; a vortex generator in an inlet region of the burner; a single lance for introducing gaseous fuel into the burner, the single lance comprising a foot and a shank which projects from it, in an installed state of the lance the foot extends perpendicularly or at an angle to a main flow direction of the burner, the shank extends centrally in the burner and generally parallel to the main flow direction, at least one projecting arm, having at least one nozzle for introducing fuel, is arranged such that the respective arm projects radially from the shank with regard to a longitudinal center axis of the shank, and wherein a longitudinal direction of the arm includes a component which extends parallel to the longitudinal center axis of the shank such that a respective end of the at least one arm is oriented in the main flow direction and extends generally parallel to the main flow direction, wherein the lance is arranged downstream of the vortex generator; and wherein more than half of a combustible gas is directed at high load as primary combustible gas flow into a center of at least one vortex in the burner via at least one short arm of the lance.