Patent ID: 9423125
Filing Date: 2016-08-23
CPC Classification: F23D,F23R

Claim Text:
1. A burner for a second combustion chamber of a gas turbine plant with sequential combustion having a first combustion chamber and the second combustion chamber, wherein the second combustion chamber has a combustion space downstream of the burner, the burner comprising: a burner wall; an introduction device provided on the burner wall laterally delimiting a mixing space of the burner and extending the mixing space downstream; a lance in the mixing space for introducing gaseous fuel into the burner, the lance comprising a shaft having a longitudinal mid-axis extending parallel to a main flow direction and at least one nozzle for introducing gaseous fuel into the burner with a main injection direction towards the burner wall, wherein the lance has a base, which extends transversely with respect to the main flow direction and is fastened to the burner wall; an outlet side of the burner through which gas flows out of the mixing space and enters the combustion space of the second combustion chamber; wherein the introduction device introduces a diverting fluid consisting of an oxidizer gas, air, steam or an inert gas into the burner and directs the diverting fluid towards the longitudinal mid-axis of the shaft to divert the gaseous fuel injected by the at least one nozzle and counteracting an impingement of the fuel flow onto the burner wall; and wherein the introduction device introduces the diverting fluid into the burner with a main introduction direction which is parallel and opposite to the main injection direction of the respective nozzle, wherein the introduction device comprises at least one nozzle for introducing the diverting fluid, which is arranged radially opposite to the respective nozzle of the shaft, wherein for each nozzle arranged on the shaft, one nozzle of the introduction device is arranged either in or on the burner wall.