脱硫工艺对循环流化床锅炉热效率计算的影响

Effects of CFB boiler desulfurization process on calculation of boiler efficiency

论述循环流化床锅炉燃用煤加石灰石混合燃料时脱硫工艺对锅炉热效率计算的影响。得出在使用GB10184—88《电站锅炉性能试验规程》计算热效率时,混合燃料的发热量、烟气量不需修正而灰分有必要进行修正的结论。并结合实例计算出修正前后循环流化床锅炉的热效率。

This article expounds the effects of desulfurization process on the calculation of CFB boiler efficiency when the boiler burns coal with limestone blended.It is concluded that,when using GB10184-88《Performance test code of utility boiler》to calculate boiler efficiency,the heating value and flue gas quantity of blended fuel don't need,but the ash content needs to be corrected.In addition,a practical instance of efficiency calculation of CFB boiler is given.