中国电机工程学报2017，Vol.37Issue(z1)：98-104,7.DOI:10.13334/j.0258-8013.pcsee.171345
循环流化床全回路气固流动动态模型及分析
Dynamic Model Establishment and Analysis on Gas-solid Flow in CFB Whole Loop
摘要
Abstract
Variable conditions such as start-up, shutdown, varying load and sudden accident processes may cause variable changes to the working processes of circulating fluidized bed (CFB) boilers. To guarantee the efficiency and control the pollutant emission, it is necessary to establish mathematic models of CFB system by analyzing how the CFB boilers work, so as to study and predict their operating characteristics, which will guide the design and operation of CFB boilers. A dynamic model of gas-solid flow in CFB whole loop was established, which was based on the mass balance in different units and the pressure balance in the circulation loop. The inventory fluctuation in the cyclone and feedback unit, as well as the particle attrition were considered in the dynamic model. Besides, the CFB boiler start-up and fan failure processes were studied with the model. The computational results show that physical parameters like the solids inventory, particle size distribution and circulation flow rate in different units are all reasonably reflected in this model.关键词
循环流化床锅炉/气–固两相流动/动态模型/启动/风机故障Key words
CFB boiler/gas-solid two phase flow/dynamic model/start-up/fan failure分类
能源科技引用本文复制引用
单露,张缦,张翼,吕俊复,陈振龙,杨海瑞..循环流化床全回路气固流动动态模型及分析[J].中国电机工程学报,2017,37(z1):98-104,7.基金项目
国家重点研发计划项目(2016YFB0600203).The National Key Research and Development Program of China (2016YFB0600203). （2016YFB0600203）
