烟气酸露点计算公式中过量空气系数的修正方法  

Correction Method of Excess Air Coefficient in Calculation Formula of Flue Gas Acid Dew-point

作　　者：王金旺 张燕 张建中 

机构地区：[1]上海成信建业节能科技有限公司,上海201103 [2]成信绿集成股份有限公司,福建厦门361009 [3]中国电力建设工程咨询公司,上海200137

出　　处：《节能技术》2014年第4期346-350,共5页Energy Conservation Technology

摘　　要：烟气酸露点是锅炉运行及节能改造工程的重要参数之一,现有文献中计算酸露点的方法很多,但不同方法的计算结果差异较大。对文献中酸露点的计算方法进行了比较,在不同过量空气系数条件下,将现行公式计算烟气酸露点变化规律与实际相反原因进行了分析。对烟气酸露点计算公式中的过量空气系数进行修正,并给出了过量空气系数的修正公式。这一方法具有一定的应用价值。Acid dew-point of flue gas is one of the important parameters in boiler operation and energy-saving reform.There are lots of calculation methods of acid dew-point of flue gas,and the results of different methods are quite different.The calculation method of acid dew-point in the literature are compared.Under the condition of different excess air coefficient,the causes that through the current formula calculation of flue gas acid dew-point changes contrary to the actual are analyzed.Flue gas acid dew-point calculation of excess air coefficient in the formula is amended,which supplies the excess air coefficient correction formula.It has a value for application.

关 键 词：酸露点计算 过量空气系数 SO3含量 低温腐蚀 烟气成份 煤质分析 

分 类 号：TK224.93[动力工程及工程热物理—动力机械及工程]