Method for evaluating service life of fine filter at inlet of gas compressor of gas turbine

The invention provides a method for evaluating the service life of a gas turbine compressor inlet fine filter, and the method comprises the steps: monitoring the flue gas flow and natural gas flow of a gas turbine and the pressure difference of the compressor inlet fine filter in real time, and determining an initial flow pressure difference coefficient R0 and a flow pressure difference coefficient R1 according to the obtained data; the air quality of an inlet of a gas compressor of the gas turbine is obtained, and a mass pressure difference coefficient R2 is determined according to the air quality; determining a function of a use coefficient R of the fine filter according to the coefficients, determining a use coefficient threshold value of the fine filter through a preset differential pressure threshold value and an air flow threshold value of the fine filter, and determining the filterable air amount of the fine filter at the inlet of the gas turbine compressor based on the function of the use coefficient