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作 者:李永强 LI Yongqiang(Hongxia Company of Huayang Group,Yangquan,Shanxi 045000,China)
出 处:《自动化应用》2023年第12期100-102,共3页Automation Application
摘 要:对旋轴流风机属于两级轴流通风机,为研究对旋轴流风机两级叶轮间的叶顶间隙对性能的影响,本文首先介绍了对旋轴流风机结构组成及工作原理,搭建了对旋轴流风机数学模型和物理模型,随后以Fluent软件作为求解工具,仿真研究了建立好的FBD.No8.0对旋轴流风机物理模型,并探究了叶顶间隙对叶轮轴功率、湍流动能以及泄露涡的影响。仿真结果表明,在设定的流量作用下,对旋轴流风机的压升和效率随着叶顶间隙的增大而降低,此外,叶顶间隙对第二级叶轮的轴功率和湍流动能影响较大,随着叶顶间隙的不断增大,对应的轴功率会减小,效率会降低。The rotary axial flow fan belongs to the two levels of axial flow fan,in order to study the influence of the performance,this paper first introduces the rotating axial flow fan structure composition and working principle,set up the rotating axial flow fan mathematical model and physical model,then with Fluent software as a solution tool,to establish a good FBD.No8.0 of rotating axial flow fan physical model simulation study,explore the top gap on impeller shaft power,turbulent kinetic energy and leakage vortex.The simulation results show that the pressure rise and efficiency of the counterrotating axial fan decreases with the increase of the leaf top clearance under the action of the set flow rate.In addition,the leaf top clearance has a greater influence on the axial power and turbulent kinetic energy of the second stage impeller,and the corresponding axial power decreases and the efficiency decreases with the increasing of the leaf top clearance.
关 键 词:煤矿 对旋轴流风机 叶顶间隙 FLUENT 流体仿真
分 类 号:TD724[矿业工程—矿井通风与安全]
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