Large condenser iS one of the key heater exchange equipmems in heat—engine

plant and petrochemical industry．For the unclear cooling water and chemical reactions

during heat exchange when the condenser is running，the fouling which is not

favorable for heat transfer is accumulated in the inner wall of condenser tube．These

fouling have produced such harm：severely decreases the heat exchange capacity of

the condenser,lowers the vacuum degree，increases energy consumption and probably

leads to accidence due to the blockage of condenser tube and followed by erosion and

perforation