Cause of corrosion of heat exchanger and treatment

Aiming at the repeated occurring of corrosion failure of heat exchanger in heating system, study shows that the acid corrosion is the main cause. Tests three treating measures i.e. addition of boiler drainage water to makeup water tank in the heat exchanging station, alkali feeding and ion exchanging system reformation. According to the test result and related analysis, adopts the measure of substituting hydrogen-sodium ion exchanging system for sodium ion exchanging system, and presents the reforming scheme in detail.