高炉煤气锅炉热效率计算方法

Calculation methods of heat efficiency for blast furnace gas boilers

对于高炉煤气锅炉,由于其特有的燃料性质以及由此带来的锅炉尾部受热面的不同设置方式,使得其锅炉效热率的计算和修正有别于传统方法。在GB 10184—1988《电站锅炉性能试验规程》的基础上,结合高炉煤气的特性和锅炉尾部受热面的设置特点,分析得到了适用于高炉煤气锅炉的热效率计算和修正方法,并以某钢铁厂220 t/h全烧高炉煤气锅炉为研究对象进行实例分析,其结果可为该类锅炉的效率测试和计算提供参考。

The method for calculating and correcting thermal efficiency of blast furnace gas（ BFG） boilers is different from the conventional way,for the special properties of BFG and the resulting boiler heating surface with different settings. On the basis of GB10184—1988 Performance test code of utility boiler,the calculation and correction model for thermal efficiency of BFG boilers was put forward,according to the properties of BFG and the settings characteristics of the boiler tail heating surface. Taking a 220 t / h boiler burning pure BFG in an iron and steel company as the research object,the proposed model was applied for case study. The results can provide references for thermal efficiency test and calculation for BFG boilers.