Patent ID: 6256975
Filing Date: 2001-07-10
Classification: B64D,F02C,F02M,F23K

Abstract:
A method for removing liquid fuel from the fuel system of a gas turbine having a combustion chamber with at least one burner with fuel nozzles while shutting down the gas turbine, the method comprising:conducting the liquid fuel through a fuel supply line to the burner nozzles of a gas turbine during operation of the gas turbine;interrupting the flow of the liquid fuel to the burner through the fuel supply line, wherein the interrupting occurs in the fuel supply line at an interrupt point, spaced from the burner, and wherein an inert medium is fed into the fuel supply line at a feed-in point located between the interrupt point and the burner;flushing the fuel supply line with the inert medium;collecting the liquid fuel and the inert medium;flushing the liquid fuel located in the fuel supply line between the feed-in point and the fuel nozzles into the combustion chamber through the fuel nozzles by means of the inert medium fed in at the feed-in point; andflushing the liquid fuel which is located in the fuel supply line between the feed-in point and the interrupt point, and discharging through a separate outlet by means of the inert medium fed in at the feed-in point.