小型液动瓦斯吹排装置的优化研究  

Study on Optimization of a Small Hydraulic Device for Blowing Methane in Upper Corner

作　　者：谷勇霞[1] 周忠宁[2] 李意民[2] 

机构地区：[1]北京工商大学,北京100048 [2]中国矿业大学,徐州221008

出　　处：《中国机械工程》2010年第1期26-29,共4页China Mechanical Engineering

基　　金：江苏省自然科学基金资助项目(BK2005018);江苏省研究生科研创新计划资助项目(CX07B-061Z)

摘　　要：为解决煤矿上隅角瓦斯吹排装置中液压马达滑靴外周的过度磨损及风机的效率较低、风量不足的状况,在滑靴底面的环状带内开设规则的沿径向收敛的凹坑对马达滑靴进行结构优化,通过计算流体动力学数值试验改进了叶轮、导叶、整流罩、轮毂和整流体。结果表明:新的设计改善了液压马达滑靴外周的过度磨损状况,总磨损量降低了28.77%;风机全压效率由71.3%提高到了76.6%。In order to improve the tear situation of slipper pair in the outer fringe and low efficiency of the fan, the flow field of lubrication film under the bottom of slipper was analyzed particularly, some regular concaves convergenting along radial in slipper＇s bottom face were machined; optimization was done for the main flow parts through numerical experiments. The structure of impeller, guide vane, spinner, hub, and rectification object were improved. The results indicate that new concave design improves the wear situation in the outer fringe, the total amount of wear reduces 28. 77%, total pressure efficiency of the fan increases from 73. 39% to 77.11%.

关 键 词：马达滑靴副 过流部件 数值模拟 优化设计 

分 类 号：TD441[矿业工程—矿山机电]