对干熄焦余热锅炉热力计算中传热系数的探讨  

Discussion on the Heat Transfer Coefficient in Thermal Calculation of CDQ Waste-heat Boiler

作　　者：郁鸿凌[1] 杜艳艳[1] 葛卫东[1] 黄海苏[1] 李瑞阳[1] 

机构地区：[1]上海理工大学,上海200093

出　　处：《工业锅炉》2009年第2期14-17,共4页Industrial Boilers

基　　金：国家863高科技研究发展计划资助项目(No.2006AA05Z219);上海市科学技术委员会重点攻关项目(No.071605127);江苏省科技成果转化专项资金项目(BA2007056)

摘　　要：在锅炉的热力计算中,应对污染系数ε、热有效系数ψ和利用系数ζ等系数有准确理解。结合干熄焦余热锅炉实际烟气成分和运行实践,采用热有效系数ψ和污染系数ε分别对各受热部件进行计算,通过对其参数的调整,反映出这些因素对传热系数的影响,提高热力计算的计算精度。同时,分析总结了特性参数调整的原因和规律,对同类余热锅炉的设计具有一定的指导意义。In the thermal calculation of the boilers, people should understand some kinds of coefficients exactly such as contamination coefficient ε, heat effective coefficient ψ and usage coefficient ξ. Combining with the actual flue gas composition and operation of CDQ waste -heat boiler, we use heat effective coefficient ψ and contamination coefficient ε to carry out the thermal calculation in CDQ boiler. It can improve the accuracy of thermal calculation by adjusting parameters which reflect the influence of heat transfer coefficient. Meanwhile, we analyze and summarize the reasons why the characteristic parameters have been changed, which has a certain realistic meaning to the design of the similar waste-heat boiler.

关 键 词：干熄焦余热锅炉 热力计算 传热系数 热有效系数 污染系数 

分 类 号：TK212[动力工程及工程热物理—动力机械及工程]