电站锅炉机组启动参数对再热器壁温的影响研究  

Studies of the Start-up Parameters on Wall Temperature of Reheater

作　　者：雷声辉[1] 孙奉仲[1] 史月涛[1] 雷文涛 焦平义 王乃华[1] 黄新元[1] 

机构地区：[1]山东大学 [2]鲁能控制公司

出　　处：《电站系统工程》2005年第2期29-31,共3页Power System Engineering

摘　　要：分析了启动工况下再热器壁温计算公式的优劣,选取了适合该工况的计算公式,通过模拟计算得出各级再热器壁温同再热器进口压力之间的关系曲线及其变化规律,讨论了机组启动参数对各级再热器的影响,提出适当提高机组启动参数可以较为有效地避免再热器管壁超温。Compared the present temperature calculation models, the formula that can apply to the start-up condition of the block unit have been chosen. Based on the calculation on the each part of reheater, the dependence and law between the tube wall temperature and the inlet pressure was given out. By analyzing the influence of the start-up parameters of block unit on the reheater, it put forward that increasing the inlet pressure properly could avoid the phenomenon of over temperature and tube explosion availably.

关 键 词：再热器管 机组启动 壁温 超温 电站锅炉 工况 进口压力 关系曲线 管壁 

分 类 号：TM621.2[电气工程—电力系统及自动化] TK223[动力工程及工程热物理—动力机械及工程]