In the early stage of ccondensate polishing operation in a thermal power plant

the water vapor quality was abnormal

and the hydrogen conductivity of feed water and boiler water reached the third grade treatment value of water vapor quality deterioration

which affected the safe and stable operation of the unit. The equipment condition

operation process

resin quantity and acid-base quality of the condensate polishing system were investigated and analyzed. It was found that there was leakage of resin during resin regeneration

which resulted in the resin quantity conditions not conforming to the original operation sequence

and affected the separation

transportation and mixing effect of resin. This was the main reason for the abnormal water vapor quality in the early stage of the condensate polishing operation. At last

several countermeasures are proposed to deal with the situation that the resin quantity does not meet the design requirements

like manually adjusting the key operation and regeneration parameters.