富氧条件下循环流化床锅炉炉内传热特性  

Heat Transfer Characteristics in Oxy-fuel Fired Circulating Fluidized Bed Boiler

作　　者：樊小朝[1] 王维庆[1] 王海云[1] 巩庭季 李凯[1] 李德方[1] 龚文杰[1] 

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830047

出　　处：《锅炉技术》2014年第3期31-34,共4页Boiler Technology

基　　金：国家自然基金项目(51106132);新疆维吾尔自治区高校科研项目(XJEDU2012S05);新疆大学大学生创新实验项目(XJU-SRT-13128)

摘　　要：在富氧气氛下对循环流化床锅炉炉内的传热特性研究,考虑锅炉产生的烟气成分变化,在传热系数的计算中考虑了气体的辐射特性,在密相区采用以前的鼓泡床传热传质模型,稀相区膜式水冷壁颗采用粒团更新模型,对模型求解,研究并分析了运行参数(如床料的直径、空隙率、烟气成分以及烟气温度等)在富氧燃烧条件下对传热的影响。In an oxygen rich atmosphere circulation fluidized bed boiler furnace heat transfer characteristics, considering the flue gas composition changes, in the calculation of the heat transfer coefficient increases the gas radiation, by bubbling bed heat transfer model as the dense phase zone of a heat transfer model of particle clusters, updating the model as a dilute phase region of the membrane water wall heat transfer model. Research and analysis of operating parameters, such as particle size, porosity, gas composition, bed temperature in combustion conditions on the heat transfer coefficient of effect.

关 键 词：富氧燃烧 循环流化床 传热 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]