矿用对旋局部通风机的应用与改造

Reform and Application of Local Counter-rotating Fan

针对矿用对旋局部通风机在开采初期两级正常工作时存在的问题,以及煤矿就此问题提出的两种解决措施(只前级运行,后级叶轮作导叶和拆除后级仅单级运行)进行了阐述,最后分析了上述两种解决方案的不足之处,提出了使用拆除后级,加装后导叶和扩散器的方式,并用试验证明了本方案的可行性。

Aiming at problems existing in normal operation of two stages in local counter-rotating fan for mine in early period of mining, the two .solving measures are pointed out. The shortcoming of two measures is analyzed finally, and the method that disassembling back stage and adding back guide vane and diffuser is pointed out, which is proved to be feasible through tests.