A method called CCPC has been put forward for the first time to characterize and determine on-line the anion of corrosive acid radical in boiler water containing phosphate by using CCDP.Through analysing the dissociative model of main acids in effluent water from cation exchange colum

a calculation method of phosphate’s contribution share in hydrogen conductivity of boiler water has been proposed

after deducting the said effect

the anion content of corrosive acid radical can be obtained.Practice shows that the said method is simple

reliable

economical

and practicable

can timely and correctly guide the blowdown of drum boiler

and determine the end point of mixed bed for condensate polishing treatment

having significance for energy-saving and corrossion-preventing.