Directing against the operation situation of booster fan used for desulphurization of 330 MW unit in Guodian Jianbi Power Plant

test study has been carried out

and several schemes for energy-saving retrofit being put forward

the data of performance test in each scheme being analysed

Finally

the retrofit scheme of capacity-decreasing and speed-reducing for electric motor of the booster fan has been implemented

the rotation speed of said motor being decreased from 426 r/min to 370 r/min

the effectiveness of energy-saving is remarkable

under 330 MW load of unit

the power-saving can reach 109 kW.