Analysis and measures of pH rising for circulating water in indirect air cooling unit

The development of air cooling technology in the northern region, where water resources are relatively scarce, has played a vital role in the development of the power industry. However, the circulating water system often causes corrosion of metal materials due to high concentration of impurity ions or pH, which affects the safe operation of indirect air-cooled units. In this paper, the authors firstly explain the reasons for the increase in pH of circulating water; then, analyze the possible hazards caused by this phenomenon; finally, put forward a treatment measure of CO₂ into the circulating water to deal with this problem.