可调卫燃带对锅炉烟温及汽温特性的影响  

Effects on Temperature of Flue Gas and Steam by Movable Heat-insulate Layer

作　　者：陈冬林[1] 赵渝渝[1] 

机构地区：[1]长沙电力学院动力工程系,湖南长沙410077

出　　处：《长沙电力学院学报（自然科学版）》2002年第1期47-51,共5页JOurnal of Changsha University of electric Power:Natural Science

摘　　要：介绍了可调卫燃带的技术背景 ,物理模型及其调节锅炉烟温和汽温的基本原理 ,并利用几种不同的方法计算了可调卫燃带对炉内烟气的平均温度、炉膛出口烟气温度及炉内换热量与炉膛出口烟气焓的影响 ,在此基础上利用热力计算标准方法 ,计算了可调卫燃带展开面积对过热汽温的影响 .计算与分析表明Technological backgrounds, physical model of movable heat insulate layer and its mechanism for regulating temperature of flue gas and steam is introduced. Next, the effects of movable heat insulate layer on average and furnace exit temperature of flue gas, heat absorbed by furnace waterwall and enthalpy of flue gas at furnace exit are calculated. Then the correlation between area of movable heat insulate layer and superheated steam temperature is calculated by several methods. The calculated results show that movable heat insulate layer is very helpful for improving steam temperature characteristics.

关 键 词：可调卫燃带 锅炉 烟温特性 热力计算 烟气温度 炉内换热量 汽温特性 影响 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程] TK223.21