本文介绍了燃煤锅炉鼓、引风机和进水泵的变频改造效果,分析了提高锅炉安全运行水平的原因指出它不同于通常变频调速改造的三个特征。 This paper introduces the effect of frequency conversion retrofit on coal-fired boiler drum, induced draft fan and water inlet pump. The reasons for improving the safe operation of boiler are analyzed. It is pointed out that it is different from the three characteristics of conventional variable frequency speed regulation.