Method and device for determining smoke exhaust loss of oxygen-enriched combustion boiler

The invention provides a method and device for determining smoke exhaust loss of an oxygen-enriched combustion boiler, and relates to the technical field of boiler smoke exhaust loss determination. The method comprises the following steps: according to as received basis coal parameters, oxygen injection parameters, flue gas recirculation extraction point parameters, air preheater extraction point parameters and atmospheric parameters, obtaining the smoke discharge amount of unit mass as received basis coal, the condensed water vapor amount, the total air leakage amount of a boiler, the oxygen injection amount, the water vapor concentration of an outlet of an air preheater and the recirculation flue gas amount; and obtaining the smoke exhaust loss of the oxygen-enriched combustion boiler according to the variables, the specific heat capacity parameters and the combustion parameters. According to the method, the determination of the smoke exhaust loss of the oxygen-enriched combustion boiler becomes feasible, a