CHEMICAL FLUID SUPPLY CONTROLLER OF BOILER

摘要

This invention relates to a chemical fluid supply controller wherein a chemical fluid supply means (5) operates to effect fundamental supply of a chemical fluid into a boiler (1) filled with boiler water during a fundamental supply period (T2). After the elapse of the fundamental supply period (T2), the accumulated operation time (T3) of a water supply means (4) is counted and, when the accumulated operation time (T3) is shorter than the fundamental supply period (T2), the supply of the chemical fluid is inhibited. When the accumulated operation time (T3) exceeds the fundamental supply period (T2), the chemical fluid is supplied at a given ratio to the feed water.