METHOD OF CLEANING GAS TURBINE ENGINE Russian patent published in 2019 - IPC F02C3/30 

FIELD: engines and pumps.

SUBSTANCE: invention relates to operation of gas turbine engines in industry as a drive of gas transfer units, in particular, to methods associated with the need to clean flow parts and internal channels of gas turbine engines from contamination and fuel deposits in pipelines. In the known method of gas turbine engine cleaning, which includes successive supply of detergent solution and water with standardized pressure and flow rate to the engine input during operation at "cold scrolling" mode, cleaning of flow part, external surfaces of nozzles of combustion chamber and seals of pre-oil cavities of engine, drainage of washing solution and water from flow part of engine through drain system, on proposal, before supply of washing solution and water, into nozzles of combustion chamber and into system of supercharging of supports through additional air ducts feeding air from self-contained power supply, wherein in operating modes air ducts used to supply air into support supercharging system, are covered with additional dampers installed on them, and air is stopped to supply after washing solution and water supply is completed. Detergent solution and water can be supplied to the engine inlet through the feed manifold.

EFFECT: implementation of this invention allows to reduce costs for operation of gas turbine engine due to exclusion of oil drain after each engine flushing and reduction of engine idle time with filling of new oil, as well as due to elimination of engine disassembly and mechanical cleaning of nozzles of combustion chamber, also increases resource and reliability of engine due to longer life of oil system elements and combustion chamber, reduced power consumption of compressor, higher efficiency and offset compressor surging in direction of its working zone.

1 cl, 1 dwg