摘要
电荷转换装置(ECT)已被多年的实际应用证明在火电厂在线煤流监测方面非常有效,其主要作用是根据测到的煤流状况自动调节二次风,优化燃烧,以降低NOx排放。文中介绍的多功能ECT还可用于监测煤流流速和颗粒的大小,以及在线磨煤机诊断。
By many years of practical experiences, it has been proved that the electric charge transfer(ECT) is an effectiveway of measuring coal flow on-line in coal-fired plants. The main purpose of the ECT is to optimise combustion to achievelow NOx by automatically adjusting secondary air flow to the measured coal flow. The new kind of ECT described here canbe used to monitor coal velocity and particle size, and as a tool for on-line coal mill diagnostics.
