油页岩循环流化床燃烧室稀相区流动结构与燃烧特性  

FLOW STRUCTURE AND COMBUSTION CHARACTERISTICS OF OIL SHALE CIRCULATING FLUIDIZED BED COMBUSTOR DILUTE ZONE

作　　者：姜秀民[1] 秦裕琨[2] 刘德昌[1] 郑楚光[1] 

机构地区：[1]华中科技大学煤燃烧国家重点实验室,湖北武汉430074 [2]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《中国电机工程学报》2001年第11期53-59,共7页Proceedings of the CSEE

基　　金：吉林省科技发展计划资助项目 ( 980 311) ;国家电力公司电力工业重点科技基金资助项目 (B92 2 0 47)

摘　　要：通过目前在世界上投入商业运行最大容量的燃用油页岩的 65t/h循环流化床锅炉热态工业试验 ,测定了不同锅炉负荷下燃烧室稀相区不同高度不同截面位置的质量流率和稀相区的流动结构。得到了稀相区内极具片状结构特点的基金项目 :吉林省科技发展计划资助项目 ( 980 311) ;国家电力公司电力工业重点科技基金资助项目 (B92 2 0 47)。油页岩颗粒特性与燃烧特性及其燃烧产物的分布特性。试验表明燃烧室内SO2 浓度沿炉膛高度减少 ,桦甸油页岩具有很强的自脱硫能力。高挥发分油页岩分级燃烧、低温燃烧和循环燃烧技术结合 ,可有效的控制NOx 的生成与排放。试验结果对油页岩循环流化床锅炉的设计与运行及大型油页岩循环流化床电厂锅炉的开发具有一定的参考价值。同时为进一步建立适合油页岩的循环流化床燃烧室稀相区的流动、燃烧、传热、磨损模型奠定了基础。Industrial thermal experimental has been done for flow structure and combustion characteristics of dilute zone of combustor in the first pilot 65t/h oil shale f ired circulating fluidized bed boiler, it is the largest commercial in ope rating oil shale circulating fluidized bed boiler in the world. Combustor dilute zone flow structure and particle mass flow ratio has been investigated along th e vertical and horizontal axis under different boiler load capacity. Sheet struc ture oil shale particle characteristic and combustion characteristics as with as carbon content distribute with particles diameter have been obtain from the tes ting. Experiment investigation has proved that SO 2 concentration reduced along furna ce height, Huadian oil shale possesses self-desulfuration ability.NO x emissio n can be reduced by the technology of stage combustion and low temperature combus tion as well as circulating combustion during combustion process of high vol atile oil shale. Testing results has value for large capacity oil shale circulat ing fluidiz ed bed boiler design and operation. It lays a foundation for modeling of flowing and combustion as well as heat transfer and abrasion of oil shale circulating f luidized bed boiler dilute zone.

关 键 词：油页岩 流动结构 燃烧特性 稀相区 燃烧室 循环流化床锅炉 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程]