Applicative Study of Test Method for Performance Curve Correction of Thermal Plant Fans
Safe operation of fans is a key issue acquiring much attention of thermal plants.There exist stalling operations of fans in some plants owing to lack of knowledge about fan operating characteristics,which can cause accidents of undes-ired stoppage when developing seriously.However,according to the analysis of fan performance curves provided by manu-facturers,operating condition points of fans are out of stalling zone,making this kind of problem prickly to power plant technicians.In view of this,the present study carried out an applicative verification on difference of actual fan performance curve with that provided by manufacturer for an exemplary case of 330 MW thermal unit,and put forward devices on per-formance curve correction.It may provide technological basis for preventing thermal plant fans from entering stalling zone.