采煤机喷雾嘴内流场的数值模拟  

Numerical simulation of spray nozzle inner flow field of coal mining machine

作　　者：宋胜伟[1] 刘春生[1] 

机构地区：[1]黑龙江科技学院机械工程学院,哈尔滨150027

出　　处：《黑龙江科技学院学报》2009年第3期218-221,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：黑龙江省国际科技合作重点攻关项目(WB01104)

摘　　要：为了改善采煤机灭尘、降尘效果,利用Pro/Engineer建立采煤机喷雾嘴的三维模型,选用标准k-ε湍流模型,通过ANSYS/FLOTRAN CFD模拟了喷嘴结构参数对内流场的影响。仿真结果表明:随着喷嘴出口直径和旋芯中心孔直径的增大,出水口的流速也增加,但雾化分散锥度角变小;螺旋孔螺旋角增大,雾化分散锥度角也增大,但出水口的流速降低。该研究明确了喷嘴结构参数与其内部流场的关系,可为喷嘴结构的参数选择和优化设计提供依据。This paper is an effort to improve dust-elinimating and dust-reducing effects of shearer, by 3-d modeling on shearer spray nozzles using Pro/Engineer and choice standard k -ε turbulence model to simu- lates the impact of nozzle structural parameters on internal flow field by ANSYS/FLOTRAN CFD. The simulation results show that, along with the increase of nozzle export diameter and rotating core center hole diameter goes the increase of the outlet flow rate, which occurs with a smaller aerosol dispersion taper angle; along with the increase screw hole helix angle goes increases of aerosol dispersion taper angle, which occurs with a lower outlet flow rate. The present study defines the relationship between structural parameters of the nozzle and internal flow field and provides a basis for the parameters choice and optimal design of nozzle structures.

关 键 词：采煤机 喷雾嘴 内流场 数值模拟 

分 类 号：TD421.6[矿业工程—矿山机电]