The induced draft fan is an important auxiliary machine of the smoke system of the boiler of the thermal generator set.The way of the induced draft fan driven by the steam turbine is technically feasible.Comparing the economy of the three induced draft fan driving modes,the electric induced draft fan can reduce the power consumption rate of the plant and improve the on-grid power of the unit after replacing the steam induced draft fan.From the perspective of gas supply of induced draft fan turbine,the larger the steam capacity of the unit boiler,the smaller the proportion of gas supply of induceddraft fan turbine in the total steam capacity,so the higher the income of steam induced draft fan.
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