Water treatment method and water treatment system of the circulating cooling water system

摘要

PROBLEM TO BE SOLVED: To provide a method and system for treating water of a circulating cooling water system by which the optimum corrosion and scale preventing effects can be obtained by coping with the change of the operating state or water quality of the water system from time to time. ;SOLUTION: The water treatment system 20 of the circulating cooling water system comprises a measuring means 1 which measures the pH and electric conductivity of the water system, and chemical adding means 2-6 which respectively add at least two kinds of anticorrosives to the water system. The system 20 also comprises a control section 7 which determines the adding amounts of the anticorrosives in accordance with the measured results of the pH and electric conductivity of the water system and commands the chemical adding means 2-6 to supply the anticorrosives by the decided amounts.;COPYRIGHT: (C)2003,JPO