135MW循环流化床锅炉流动模型  

The model of gas-solid flow pattern for 135MW circulating fluidized bed boiler

作　　者：李智[1,2] 胡俊宇[1,2] 王翔凤[1,2] 于贵君[1,2] 

机构地区：[1]沈阳工程学院,辽宁沈阳110136 [2]辽宁省电力仿真控制重点实验室,辽宁沈阳110136

出　　处：《节能》2008年第12期11-14,共4页Energy Conservation

基　　金：辽宁省高校科技计划项目(项目编号:052L268)

摘　　要：针对135MW循环流化床的特点,建立了密相区和稀相区的流动模型,并进行了宽筛分的处理。沿着床层轴线方向把稀相区均匀划分20个区段,沿着径向将每个区段划分为核心区和环形区,形成了连续的核心小室和环形小室,认为每个核心小室和环形小室内气固流动参数均匀,这样分别建立了每个核心小室和环形小室的流动模型。通过仿真计算表明,所建的流动模型能够反映135MW循环流化床锅炉的流动特性。Taking 135MW circulating fluidized bed(CFB)boiler as the object,the flowed model of a dense part and a dilute part was established,which consider broad size distribution of feeding coal.The dilute part of CFB boiler was divided into twenty pieces in the direction of axial and all pieces were partitioned into the core-annulus structure in the direction of radial,so that the continuous cells of core-annulus can be built.Assume flowed parameters were identical in core-annulus cells,the model of gas-solid flow in all cells was established.The simulating results indicate that model can properly describe flowed character of gas-solid in 135MW CFB boiler.

关 键 词：循环流化床 流动模型 核心小室 环形小室 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程] TP183[自动化与计算机技术—控制理论与控制工程]