| 自然通风湿式冷却塔加装挡风板优化设计 |
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| 引用本文： | 李永华,甄海军,马建坤.自然通风湿式冷却塔加装挡风板优化设计[J].应用能源技术,2011(11):44-48. |
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| 作者姓名： | 李永华 甄海军 马建坤 |
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| 作者单位： | 1. 华北电力大学能源动力与机械工程学院,保定,071003
2. 华能上安电厂,石家庄,050310 |
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| 摘 要： | 以湿冷机组自然通风冷却塔相关理论为基础,借助于CFD模拟软件,建立了火电机组湿式冷却塔的传热传质模型,主要的换热区域如填料、雨区和喷淋区采用离散相模型。由于冬季气温较低和塔内的换热不均,在冷却塔的填料下面、进风口处、基环面容易结冰,提出了在进风口处加装挡风板的方案,数值模拟分析结果显示,该方案改善了塔内温度场,有效的防止了塔内结冰。
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| 关 键 词： | 冷却塔 挡风板 数值模拟 离散相模型 |
Optimization Design of Installing Windshield Board On Natural Draft Wet Cooling Tower |
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| LI Yong-hua,ZHEN Hai-jun,MA Jian-kun.Optimization Design of Installing Windshield Board On Natural Draft Wet Cooling Tower[J].Applied Energy Technology,2011(11):44-48. |
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| Authors: | LI Yong-hua ZHEN Hai-jun MA Jian-kun |
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| Affiliation: | LI Yong-hua1,ZHEN Hai-jun1,MA Jian-kun2(1.Energy Power and Mechanical Engineering School of North China Electric Power University Baoding 071003,China,2.Huaneng Shang'an Power Plant,Shijiazhuang 050510,China) |
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| Abstract: | Based on the relative theorise of the wet cooling tower,this simulation builds the heat and mass transfer model through CFD.The main heat transfer area,such as fillers,rain and spray zone discrete phase model.As the air temperature is low in winter and the heat transfer is uneven in the tower,the water is easy to freeze below the packing of the cooling tower,at the air inlet and on the base torus.A method is presented that a wind shield is installed at the air inlet,numerical simulation results show which i... |
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| Keywords: | Cooling tower Windshield board Numerical simulation Discrete phase model |
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