华能德州电厂锅炉再热汽温偏低的原因分析及解决方案  

Causes Analysis and Countermeasure for Low Reheat Steam Temperature of Boilers in Huaneng Dezhou Power Plant

作　　者：吴安[1] 曹汉鼎[1] 马东森[2] 张园果 陈建亮[2] 王春明[2] 朱智士[1] 胡兴胜[1] 

机构地区：[1]上海发电设备成套设计研究院,上海200240 [2]华能德州电厂,德州253024

出　　处：《动力工程》2008年第6期839-846,共8页Power Engineering

摘　　要：对华能德州电厂5号、6号锅炉拆除部分卫燃带后再热汽温偏低的原因进行了分析,并提出了考虑炉膛几何形状对炉内传热影响的热力计算方法,同时制定了解决再热汽温偏低的2个改造方案.通过分析和比较,选择方案2对6号炉进行了改造,经实际运行表明:改造后的现场测量值与理论计算值一致,达到了预期的目的.Causes of low reheat steam temperature of No. 5 and No. 6 boilers of Huaneng Dezhou Power Plant after removing part of the ignition belts were analyzed. A thermal calculating method was proposed, which considered the effects of furnace geometric shape on heat transfer in the furnaee. Meanwhile two retrofit schemes to solve the problem of low reheat steam temperature were put forward. After analysis and comparison, No. 2 scheme was selected and used in the retrofit of No. 6 boiler. Practical operation shows that the measured values at site agree well with the calculated values, and the desired result is achieved.

关 键 词：能源与动力工程 锅炉 再热汽温 结焦 改造方案 

分 类 号：TK223.32[动力工程及工程热物理—动力机械及工程]