对旋轴流通风机流场预测及两级电机功率匹配研究

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摘要对旋风机是矿井通风系统的重要组成部分,其安全稳定的运行是煤矿工人生命安全的保障。针对在长距离送风状态下,对旋风机风量显著减小、前后两级电机功率匹配难度加大的问题,依据流体动力学原理（Computational Fluid Dynamics,CFD）,采用对旋风机全域流体场数值模拟方法,对两级对旋叶轮性能与两级电动机性能的“线（点对点）”匹配进行研究。仿真结果揭示了对旋轴流通风机流场内部气流的真实流动规律以及两级电机轴功率匹配情况。将数值模拟结果和实验数据进行对比,验证该数值模拟方法的准确性,同时验证通过改变叶片安装角提高风机运行效率的可行性,为高性能对旋风机调速控制和节能控制提供理论依据。

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	温嘉斌
	和海波

关键词 ：对旋风机, 数值模拟, 定常计算, 压力脉动, 两级电机功率匹配

Abstract：The counter-rotating fan is an important part in the mine shaft’s ventilating system, and its safe and stable operation is very important for the coal miners’ lives safety. In the condition of the long-distance ventilating, the counter-rotating fan’s air volume reduces significantly, and the power matching of the two-level motors is more difficult. According to the problem, the performance LINE (point-point) matching between the two-level counter-rotating blades and electric machines is studied by using the method of global flow field numerical simulation based on the principle of computational fluid dynamics(CFD). The simulation results reveal the condition of the two-level motors’ power matching and the internal airflow’s real flow pattern. The comparison of the simulated results with test data are proposed to verify the correctness of the numerical simulation method, and at the same time, the feasibility of improving the counter-rotating fan’s operation efficiency through the method of changing blade incidence is verified, too. This method provides a theoretical basis for speed control and energy-saving control of the counter-rotating axial flow fan.

Key words： Counter-rotating axial flow fan numerical simulation steady constant calculation pressure fluctuation power matching of two motors

收稿日期: 2013-06-04 出版日期: 2015-03-23

PACS:

TM315

基金资助:国家自然科学基金资助项目（51275137）

作者简介: 温嘉斌男,1961年生,博士,教授,硕士生导师,研究方向为电机及其控制、电机设计与冷却。和海波女,1988年生,硕士研究生,研究方向为电机综合物理场数值计算。

引用本文:

温嘉斌, 和海波. 对旋轴流通风机流场预测及两级电机功率匹配研究[J]. 电工技术学报, 2015, 30(1): 105-111. Wen Jiabin, He Haibo. Flow Field Estimation of Counter-Rotating Axial Flow Fan and Power Matching Research of Two Motors. Transactions of China Electrotechnical Society, 2015, 30(1): 105-111.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2015/V30/I1/105

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