This paper introduces means of economy energy about 2# reheating furnace combustion fan and describe how transducer used in combustion fan and how it improve efficiency of fan.

• 介绍了热轧板厂2%23加热炉助燃空气系统节能改造的几种方案。重点提出了助燃风机变频改造并对变频调速改造后的经济效益进行了较为详细的计算。