Abstract:In silver non-ferrous group co, LTD, copper company oxygen workshop air separation system circulating water as the analysis object, the supplement water, circulating water, hanging test analysis, so as to judge the air separation circulating water system for serious scale type water quality, further from pH, water temperature, conductivity, water flow rate and dissolved oxygen influence on corrosion and circulating water balance calculation to analyze the concentration multiple and the circulating water parameters. Application of PF-305 corrosion inhibitor to the air separation circulating water system.