螺旋肋片管省煤器在降低锅炉排烟温度中的应用  

Research and application on reducing the flue gas temperature of boilers

作　　者：裴海灵[1] 周乃君[1] 

机构地区：[1]中南大学能源与动力工程学院,湖南长沙410083

出　　处：《湖南电力》2005年第2期54-55,59,共3页Hunan Electric Power

摘　　要：针对某公司热电厂2号锅炉排烟温度过高的问题,以锅炉综合测试和热力计算结果为依据,分析了造成排烟温度过高的原因,提出了采用螺旋肋片管式省煤器以增加尾部受热面的方案。改造后的运行实践表明,锅炉在满负荷运转时排烟温度平均可降低40℃以上,热效率可提高2 .2 7个百分点。According to factors affecting boilers flue gas t em perature, this paper analyzes the problem and cause of excessive high flue gas t emperature existing in one factorys No.2 boiler on the basis of t he boiler comprehensive test and thermodynamic calculation. The scheme that adop t economizer with helix-side-slice has been put forward in order to increase t he back-end surface. The operation practice indicates that the boilers flue g as temperature can be reduced at least by 40℃ and thermo-efficiency be improve d by 2.27%.

关 键 词：锅炉 排烟温度 省煤器 螺旋肋片管 

分 类 号：TM621.2[电气工程—电力系统及自动化]