Patent ID: 9182117
Filing Date: 2015-11-10
Classification: F23C,F23D,F23R

Abstract:
1. A lance of a gas turbine burner comprising: an inner duct having inner nozzles; an annular outer duct encircling the inner duct and having outer nozzles; a spacer disposed downstream of the inner nozzles and outer nozzles between a terminal portion of the inner duct and a terminal portion of the outer duct, the spacer being fixed to both the inner duct and the outer duct, and wherein the spacer extends in a radial direction in an annular section between the inner duct and the outer duct; wherein the inner duct includes an inner duct seat, the spacer extending from the outer duct to the inner duct so as to rest in the inner duct seat, and a fixing element configured to block the spacer in the inner duct seat; wherein the outer duct includes an outer duct seat, the spacer extending from the inner duct to the outer duct so as to rest in the outer duct seat, and a fixing element configured to block the spacer in the outer duct seat; and a wall closing the terminal portion of the outer duct, wherein the wall is a separate element from the outer duct and connected to the outer duct.