Boiler gas phase pollutant emission concentration conversion method based on flue gas recirculation technology

The invention discloses a boiler gas phase pollutant emission concentration conversion method based on a flue gas recirculation technology, and relates to the technical field of boiler environmental protection adopting the flue gas recirculation technology. The problem that a traditional boiler gas phase pollutant emission concentration conversion method is only suitable for active or passive diluent gas in boiler tail flue gas as air, and under the application scene of the flue gas recirculation technology, when the diluent gas becomes mixed gas of air and circulating flue gas, the conversion precision is low is solved. According to the method, boiler data are collected, meanwhile, fuel component analysis is conducted on boiler fuel, the air amount Vair needed by complete combustion of the unit fuel and the dry smoke amount Vtfgv generated by complete combustion of the unit fuel are obtained, and the air-smoke ratio # imgabs0 # is obtained. And the traditional conversion process of the gas-phase pollutant em