METHOD FOR CONTROLLING AMOUNT OF INJECTED CONDENSED- WATER PROCESSING AGENT

摘要

PROBLEM TO BE SOLVED: To provide a method for controlling amount of injected condensed- water processing agent which is effective for preventing corrosion of a drain piping. SOLUTION: The amount of injected condensed-water processing agent is controlled based on drain recovery coefficient and methyl orange alkalinity of raw water. The drain recovery coefficient is decided by temperature of raw water, drain water, and supply water.