| 挡风墙对直接空冷风机群流体动力学特性的影响 |
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| 引用本文： | 陈梅倩,王玉叶,贾鹏程,刘翔,杨飞,王海生.挡风墙对直接空冷风机群流体动力学特性的影响[J].北方交通大学学报,2012(1):98-103. |
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| 作者姓名： | 陈梅倩 王玉叶 贾鹏程 刘翔 杨飞 王海生 |
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| 作者单位： | [1]北京交通大学机械与电子控制工程学院,北京100044 [2]甘肃电力科学研究院锅炉技术研究所,甘肃兰州730050 |
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| 基金项目： | 国家自然科学基金资助项目（60776007） |
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| 摘 要： | 通过数值模拟法对直接空冷凝汽器风机群流体动力学特性进行研究，分析不同风速情况下，挡风墙形状对空冷风机群流体动力学特性的影响．研究结果表明：挡风墙全凹时不仅有利于周边风机吸风，并能削弱热风回流，挡风墙下凹更有利于周边风机吸风．研究结果为实现空冷风机分区调节和电厂节能提供一定基础数据．
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| 关 键 词： | 直接空冷机组 风机群 挡风墙 流体动力学 数值模拟 |
Influences of the wind break wall structures upon fluid dynamics of axial flow fans in direct air-cooled system |
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| CHEN Meiqian,WANG Yuye,JIA Pengcheng,LIU Xiang,YANG Fei,WANG Haisheng.Influences of the wind break wall structures upon fluid dynamics of axial flow fans in direct air-cooled system[J].Journal of Northern Jiaotong University,2012(1):98-103. |
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| Authors: | CHEN Meiqian WANG Yuye JIA Pengcheng LIU Xiang YANG Fei WANG Haisheng |
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| Institution: | 1. School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. Boiler Technology Institute, Gansu Province＇s Electric Power Research Institute, Lanzhou Gansu 730050, China) |
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| Abstract: | Influences of the wind break wall structures upon fluid dynamics of axial flow fans in direct air-cooled system are numerically simulated under various wind velocities. The results show that the all-concaved wind break wall not only contributed to wind suction of peripheral fans, but also weak- ened the hot recirculation rate, and the half-coneaved wind break wall is more beneficial to the wind suction. These conclusions may provide certain reference to the realization of divisional regulation of fan group and saving energy for power plant. |
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| Keywords: | direct air-cooled units fan group wind break wall fluid dynamics numerical simulation |
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