矿用气动瓦斯吹排风机的结构优化  

Structural Optimization of Pneumatic Fan to Blow Gas

作　　者：张国杰[1] 李意民[1] 张昕喆[1] 

机构地区：[1]中国矿业大学电力工程学院,江苏徐州221116

出　　处：《煤矿机械》2015年第2期160-162,共3页Coal Mine Machinery

摘　　要：气动瓦斯吹排风机是治理煤矿上隅角瓦斯的有效设备之一。对瓦斯吹排风机进行性能模拟,仿真叶轮叶片在不同安装角下的内部流场。通过压力分布图分布可知:安装角增大,叶片所受的升力随之增加,叶片前缘阻力因受到冲击能量损失增大,叶片后缘分离现象加剧。安装角较小时,二次流损失加大,导致风机的效率达不到最佳值。Pneumatic fan is one of effective equipment on management coal mine corner gas. Through charts of section pressure distribution, it was concluded that as the installation Angle increasing, the augmented lift force of blade increased, the energy loss caused by shocked lead that the leading edge of the blade resistance increased, the segregation phenomenon of the trailing edge of the blade aggravate.And as the installation Angle decreasing the second flow loss increased lead that the efficiency of the fan is unable to achieve the best value.

关 键 词：气动风机 流场分析 结构优化 数值模拟 

分 类 号：TD713[矿业工程—矿井通风与安全]