锅炉运行中常用灰中可燃物含量来说明锅炉的机械不完全燃烧损失。但由于灰的取样困难,分析时间长,所以不能迅速得出分析结果。近年来气体分析技术发展很快。由于烟气取样具有代表性好,分析迅速、精确,又可连续取样,结果连续显示等优点,因此,用烟气分析结果判断燃烬程度将比灰样分析 Boiler operation commonly used ash content of combustible material to illustrate the boiler’s mechanical incomplete combustion losses. However, due to the difficulty of sampling gray, the analysis of a long time, it can not quickly come to the analysis results. In recent years, gas analysis technology has developed rapidly. Because flue gas sampling has the advantages of good representativeness, rapid and accurate analysis, continuous sampling and continuous display of results, it is better to judge the degree of burning embers by using the flue gas analysis