Abstract: The feasibility of merging the induced draft fan and the booster fan for desulphurization in 2×600MW unit of Guizhou Huadian Tongzi Power Generation Corporation Limited was analyzed. The fan type selection schemes for merging mode and the two fans separately configuring mode were put forward. The initial costs and the costs of operation and maintenance of the two modes were compared. The type selection of merged fan and the configuring number of induced draft fan were demonstrated. The scheme of merging the induced draft fan and the boost fan for desulphurization was recommended in this project, and the axial fan with adjustable rotor blade was recommended for the merged fan.

Key words: induced draft fan, booster fan, axial fan with adjustable rotor blade, fan type selection