闭式冷却塔热力性能影响因素分析及优化设计.pdf

文档介绍：闭式冷却塔热力性能影响因素分析及优化设计
宋进 1,郑伟业 1,朱冬生 1,曾力丁 1,周洪剑 2
(,上海 200237;
,上海 200436)
摘要:本文分析了闭式冷却塔的传热传质机理,建立了二维计算模型,在此模型的基础上编写圆管型闭式冷却塔设
计计算模拟程序。采用不同作者经典的传热传质经验公式,以总传热系数、换热面积为研究方向,计算模拟分析管
内流速、配风量、喷淋密度、迎面风速对热力性能的影响,得到了各因素的最佳范围,对封闭式冷却塔的性能优化
设计具有一定的指导作用。
关键词:闭式冷却塔;换热面积;总传热系数
Influence Factors on Thermal Performance and Optimal Design
of Closed Circuit Cooling Tower
Song Jin 1, ZHENG Wei-ye 1, ZHU Dong-sheng1, ZHOU Hong-jian2, ZENG Li-ding1
(1. Key Laboratory of Pressure Systems and Safety, Ministry of Education., East China University of Science and
Technology, Shanghai 200237, China
2. Shanghai Baofeng Machinery Manufacturing Co. Ltd, Shanghai 200436, China)
Abstract: This paper analyse the heat and mass transfer mechanism of closed circuit cooling tower. A
two-dimensional calculation model has been built and the design calculation simulation program of pipe
type closed circuit cooling tower has been written with this model. With the overall heat transfer
coefficient and heat transfer area of research party ,the classical heat and mass transfer experience formulas
of different authors have been used to calculate and analyse the influence of different process water
velocity, face velocity, air flow and water flow rate per unit length to the thermal performance. The optimal
range of the diff