FIELD: power industry.
SUBSTANCE: fuel system (8) and the method of its washing for gas-steam-turbine plant with the integrated coal gasification which comprises the gas turbine (1). The fuel system (8) is connected to the combustion chamber (3) of the gas turbine (1) and contains the device (10) for gasification of natural fuel and the gas pipeline (9) which is branched off from the gasification device (10) and connected to the combustion chamber (3) of the gas turbine (1). In the direction, opposite to the flow, upstream the combustion chamber (3) the device (21) for fuel saturation by steam is built in the gas pipeline (9). The flushing pipeline (42) is provisioned which is built in the gas pipeline (9) between the gasification device (10) and the saturation device (21). The fuel system (8) is washed out by means of injection of the flushing medium into the gas pipeline (9) between the gasification device (10) and the saturation device (21) towards the combustion chamber (3).
EFFECT: improvement of reliability and decrease of labour input of washing is achieved.
20 cl, 1 dwg
