摘要
在一座 0 3MW热输入的PC -FBC试验台上进行了试验研究 ,获得了不同操作参数下PC -FB燃烧效率的试验数据 ,详细讨论了这些参数对PC -FB燃烧效率的影响规律。研究结果表明 ,粉煤流化床的燃烧效率最高达 98%～ 99% ,可与煤粉炉相媲美。本试验研究亦首次提出 ,只要燃烧温度、颗粒停留时间、火焰湍流度 (3T)及炉内氧浓度、颗粒浓度(2C)合理匹配 ,就能够实现煤粉的低温高效燃烧。
With the help of a pulverized coal fluidized bed (PC FB) test rig with 0.3 MW heat input test data were obtained of the PC FB combustion efficiency under various operation parameters. A detailed discussion and study was conducted focusing on the mechanism of influence of these operation parameters on PC FB combustion efficiency. The study results indicate that the combustion efficiency of the PC FB can be as high as 98% 99%, comparable with that of a pulverized coal furnace. The authors also pointed out for the first time in the present study that under a certain set of conditions it is possible to realize a low temperature high efficiency combustion of the pulverized coal. These conditions include, among others, a rational matching of the following items: combustion temperature, particle residence time, flame turbulence and in furnace oxygen concentration and particle concentration.
出处
《热能动力工程》
CAS
CSCD
北大核心
2001年第1期43-45,共3页
Journal of Engineering for Thermal Energy and Power
关键词
粉煤流化床
燃烧效率
运行参数
燃煤锅炉
fluidized bed, pulverized coal, combustion efficiency, operating parameters
