层燃炉复合燃烧方式下的炉内特性  

Furnace Characteristics of Layer Fired Boiler Under Combined Combustion Mode

作　　者：于永鑫 刘丽娜 刘子琛 武于凤 王成驰 YU Yongxin;LIU Lina;LIU Zichen;WU Yufeng;WANG Chengchi(College of Petroleum Engineering,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001

出　　处：《工业炉》2023年第2期1-5,共5页Industrial Furnace

基　　金：辽宁省教育厅科研项目(L2020028);辽宁石油化工大学大学生创新创业计划项目(2021101480236)。

摘　　要：以某层燃锅炉为研究对象,改进燃烧方式,对不同颗粒物料采用不同燃烧方式,小颗粒物料微流化,大颗粒物料层状燃烧,实现复合式燃烧方式;对炉内燃烧方式改造前后进行数值计算,探究新燃烧方式下炉内流场和温度场的变化。计算结果表明:层燃炉采用复合燃烧后,小颗粒物料的微流化运动可以强化炉内的扰动,增强颗粒物料的燃烧强度,提高燃烧温度。Taking a layer fired boiler as the research object,improve the combustion mode,different combustion modes are used for different particulate materials,such as micro-fluidization of small particulate materials and stratified combustion of large particulate materials,to realize the composite combustion mode.Numerical calculation is carried out before and after the transformation of the combustion mode in the furnace to explore the changes of the flow field and temperature field in the furnace under the new combustion mode.The calculation results show that the micro-fluidization movement of small particle materials can strengthen the disturbance in the furnace,enhance the combustion intensity of particle materials and increase the combustion temperature after the composite combustion is adopted in the layer fired boiler.

关 键 词：层燃锅炉 数值模拟 复合燃烧 

分 类 号：TQ534[化学工程—煤化学工程]