600MW超临界CFB锅炉旋风分离器布置的数值模拟  

NUMERICAL SIMULATION OF CYCLONES ARRANGEMENTS OF 600MW SUPERCRITICAL CFB BOILER

作　　者：刘志成[1] 孙运凯[1] 那永洁[1] 吕清刚[1] 包绍麟[1] 邵国桢[2] 顾家胜[2] 肖锋[2] 王冬福[2] 

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]上海锅炉厂有限公司,上海200245

出　　处：《工程热物理学报》2009年第11期1949-1952,共4页Journal of Engineering Thermophysics

基　　金：国家科技支撑计划子课题资助(No.2006BAA03B02-04);上海锅炉厂有限公司的资助

摘　　要：旋风分离器是CFB锅炉的核心部件之一。本文以FLUENT商业软件为工具,运用数值模拟方法,对600 MW超临界CFB锅炉的六个旋风分离器的布置方式(旋风分离器的入口烟道相对于炉膛的位置及角度)进行了研究,分析了四种不同布置方式下的速度场、颗粒浓度分布及烟气流量在六个旋风分离器的入口烟道之间的分配情况,通过对比分析得到比较理想的布置方案,为600MW超临界CFB锅炉的设计提供依据。Cyclones are one of the key parts of a circulating fluidized bed （CFB） boiler. Numerical simulation with VLUENT of four arrangements of six cyclones for a 600 MW supereritical CFB boiler was made with focusing the inlet ducts of the cyclones. Gas velocity fields, concentration distribution of particles in the ducts and the gas flux differences among the six ducts are obtained and compared among the four different arrangements. An optimized arrangement with even gas velocity and flux is suggested to the design of the 600 MW supercritical CFB boilers.

关 键 词：旋风分离器 超临界参数 CFB锅炉 数值模拟 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]