CNCM-2.5Y型多功能加热炉的二次进风研究  

Experimental study of secondary air inlet system in multifunction heating stove type CNCM-2.5Y

作　　者：周毅[1] 汤楚宙[1,2] 刘保华[1,2] 翁伟[1,2] 

机构地区：[1]湖南农业大学工学院,湖南长沙410128 [2]湖南省现代农业装备工程技术研究中心,湖南长沙410128

出　　处：《湖南农业大学学报（自然科学版）》2012年第2期212-213,共2页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：农业部"948"项目(2006-G62)

摘　　要：对CNCM–2.5Y型多功能加热炉进行工业热态试验,测试在室内风速为0.5 m/s时二次风率变化的排烟热损失和烟气中CO、CO2、NOx、SO2等组分的排放。结果表明,二次风率的大小对排烟温度及烟气组分排放有明显影响,在一次风量不变时,随着二次进风量的增大,排烟温度和烟气中CO、NOx、SO2含量呈下降趋势;通过精确控制二次进风的变化,发现二次风率为20%时,排烟热损失为8.5%,CO排放量为1 055 mg/m3,NOx排放量为52.0 mg/m3,SO2排放量为96.0 mg/m3,CO2排放量为8.2%,此时的二次风率与其他工况相比排烟热损失低,烟气污染物排放少。Multifunction heating stove type CNCM-2.5Y was tested by the industrial thermal test to investigate the heat loss in exhaust gas with the change ratio of secondary to primary air when the air speed was 0.5 m/s and to examine the emission of the components including CO,CO2,NOx,SO2 in flue gas.The results showed the ratio of secondary to primary air significantly influenced the temperature of the exhaust gas and the content of the components.When the primary air injection remains unchanged,the temperature of the exhaust gas and CO,NOx and SO2 emissions decreased with the increase of secondary air intake.It was found that the heat loss of exhaust gas was 8.5%,and the emission for CO was 1 055 mg/m3,for NOx was 52.0 mg/m3,for SO2 was 96.0 mg/m3 and for CO2 was 8.2% when the ratio of secondary to primary air is precise controlled to be 20%,which is the best secondary air intake in all tested conditions with low heat loss in exhaust gas and low emission of pollutants.

关 键 词：加热炉 二次风率 排烟热损失 烟气排放 

分 类 号：TK114[动力工程及工程热物理—热能工程]