贾斌,赵爽,张维蔚,周宏敏
JIA Bin,ZHAO Shuang,ZHANG Weiwei,ZHOU Hongmin

• 1:内蒙古电力科学研究院
• 2:内蒙古工业大学
• 3:内蒙古京能康巴什热电有限公司

摘要(Abstract)：

利用计算流体力学软件Fluent对康巴什热电厂350 MW机组间接空冷塔内布置的表面式空冷散热器空气侧和水侧的流动特性及换热性能进行数值模拟,以获取间接空冷散热器中的低温区。结果表明:无论风向如何变化,迎风侧的扇区与其他扇区相比,温度最低。而在同一扇区内,供水支管附近的矩形冷却器第20—24号小管内温度最低,为间接空冷机组冬季扇区投退、重点部位温度监测提供理论支持。
The flow and heat transfer performance of the air side and water side of the surface air-cooled radiator installed in the indirect air-cooled tower is numerically simulated by using Fluent, on the 350 MW generator unit of Kangbashi thermal power plant. And the lower temperature zone where is most likely frozen is acquired. Results show that temperature of sector which is vertical to wind direction is lowest compared with other sectors, and in the same sector temperature from pipe 20 to pipe 24 in rectangular coolers near supply water pipe is the lowest. The results can help the operators of air-cooled unit to decide how to input or output sectors and which key unit should be monitored especially.

关键词(KeyWords)： 间接空冷塔;空冷散热器;数值模拟;风速;低温区;循环冷却水流量
indirect air-cooled tower;air-cooled radiator;numerical simulation;wind speed;low temperature zone;circulation water flow

Abstract:

Keywords:

基金项目(Foundation): 内蒙古电力科学研究院2014年自筹科技计划项目(2014-ZC-07)

作者(Author): 贾斌,赵爽,张维蔚,周宏敏
JIA Bin,ZHAO Shuang,ZHANG Weiwei,ZHOU Hongmin

参考文献(References)：

• [1]石磊,石诚,李少宁,等.表面式间接空冷散热器换热特性的数值研究[J].动力工程,2009,29(5):472-480.
• [2]杨立军,杜小泽,杨勇平,等.间接空冷系统空冷散热器运行特性的数值模拟[J].动力工程,2008,28(4):594-599.
• [3]石磊,石诚,余喆,等.间接空冷散热器空冷塔流动和传热的数值研究[J].西安建筑科技大学学报(自然科学版),2011,43(4):535-540.
• [4]田松峰,王先董,刘静,等.SCAL型间接空冷塔夏季工况数值模拟[J].汽轮机技术,2016,58(3):195-197.
• [5]杨立军,贾思宁,永东,等.电站间冷系统空冷散热器翅片管束流动传热性能的数值研究[J].中国电机工程学报,2012,32(32):50-57.
• [6]孙艳强,席新铭,董泽文,等.600 MW间接空冷散热器传热及防冻性能[J].工程热物理学报,2015,36(8):1785-1789.