MULTI CAN INSTALLATION SYSTEM OF BOILER FOR PREVENTING CORROSION DUE TO LOW LOAD OPERATION

摘要

PROBLEM TO BE SOLVED: To obtain a multi can installation system of boiler in which the pH of boiler water in a boiler of low load order is prevented from decreasing to deviate from an appropriate range thus causing corrosion. SOLUTION: In the multi can installation system of boiler comprising a plurality of boilers 1, and a controller 3 for controlling the number of combusting boilers and regulating steam supply by combusting a required number of boilers, the controller 3 calculates the load factor of the boiler and increases the load factor of such boilers as the pH of boiler water decreased.