临涣煤矿东风井抽风机串级调速技术改造

The technical reform on series stage adjusting speed of ventilator in Linhuan Coal Mine

介绍了抽风机技术改造的原因、串级调速工作原理、系统结构及特点 ,阐述了技术改造后的应用效果。

The reasons of the technical reform of the ventilator,the work principles,systymatic design and features of adjusting speed in series stages and the utilization results after the technical reform are introduced.