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力学与实践 ›› 2009, Vol. 31 ›› Issue (2): 65-68.doi: 10.6052/1000-0879-lxysj2008-018

• 应用研究 • 上一篇    下一篇

某电厂自然通风冷却塔塔群风载荷研究

李毅男   

  1. 国家核电技术公司山东电力工程咨询院
  • 收稿日期:2008-01-14 修回日期:2008-05-20 出版日期:2009-04-10 发布日期:2011-09-06
  • 通讯作者: 李毅男 E-mail:sepci_lyn@163.com

WIND LOADS ON MULTI NATURAL DRAFT COOLING TOWERS IN A POWER PLANT

Yinan Li   

  • Received:2008-01-14 Revised:2008-05-20 Online:2009-04-10 Published:2011-09-06
  • Contact: Yinan Li E-mail:sepci_lyn@163.com

摘要: 自然通风冷却塔属高耸的薄壳结构,在风载荷作用下冷却塔顶部的位移可超 过壁厚的数倍,对风载荷极为敏感,特别是在塔群情况下,风速、风压分布和塔间气流十分复 杂. 根据某电厂不规则塔群风洞试验结果,提出塔群条件下自然通风冷却塔设计风荷 载取值的几点意见,可供工程参考.

Abstract: Natural draft cooling tower is a high-rise thin shell structure. The displacement in the top of the cooling tower can be tens of centimeters under wind loads, several times of the wall thickness. Cooling tower is very sensitive to wind loads, especially in multi-towers conditions, where the wind velocity, wind pressure distribution and airflow among towers are quite complex. On the basis of the experiment results on irregular multi-towers, this paper put forward some proposals about determining wind loads of natural draft cooling tower in multi- towers conditions.