干熄焦余热锅炉过热器传热特性研究  

Study on the characteristics of heat transfer for super-heater in CDQ boiler

作　　者：周托[1] 张忠孝[1] 郁鸿凌[1] 孙娜娜[1] 赵兵涛[1] 朱明[1] 姚志鹏[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《上海理工大学学报》2009年第6期529-534,共6页Journal of University of Shanghai For Science and Technology

基　　金：国家"863"高科技研究发展计划资助项目(2006AA05Z219);上海市科委重点攻关资助项目(071605127)

摘　　要：针对干熄焦余热锅炉过热器的特点,建立描述其内部传热的简化数学模型.应用该模型对一台86.6 t/h的干熄焦余热锅炉二级过热器烟气和蒸气温度分布进行模拟,模拟计算结果与实际运行过程具有较好的一致性.并进一步分析了过热器烟气进口温度和内部不同沾污情况对过热器换热的影响.In allusion to the characteristics of super-heater in coke drying quenching boiler（CDQ）, simplified mathematical model was established to describe its internal heat transfer. Then the flue and steam＇s temperature secondary super-heater in a CDQ with 86.6 t/h loads were simulated. The calculation results show the agreement with the measured data, and the influences of super-heater inlet gas temperature and ifferent contamination on factors of heat transfer were analysed by using the model.

关 键 词：干熄焦余热锅炉 过热器 温度分布 传热系数 传热量 影响因素 

分 类 号：TK229.92[动力工程及工程热物理—动力机械及工程]