700MW机组锅炉混煤燃烧数值模拟  

The Numerical Simulation of the Blending Coal Combustion about a 700MW Boiler

作　　者：谭灿燊[1] 吴阿峰[1] 

机构地区：[1]广东省电力设计研究院,广东广州510663

出　　处：《重庆电力高等专科学校学报》2008年第4期12-14,17,共4页Journal of Chongqing Electric Power College

摘　　要：采用随机轨道模型等数学模型,对三菱公司生产的MB-FRR型锅炉改为混煤燃烧过程及燃烧室内的颗粒运动进行了数值模拟。模拟得到的炉膛内的速度场和温度场的分布情况与锅炉热效率试验的结果较符合。结果表明,改烧混煤虽有一定程度的结渣,但在运行中注意调整运行方式,可确保其安全运行。Adopting the random tracking model and other mathematical models, for the MB - FRR boiler produced by Mitsubishi,the process of the combustion and the movement of particle in the firebox after burning blending coals are simulated. The distribution of velocity and temperature got by simulation is in good coincidence with the thermal efficiency experiment. The result shows that the change of blending coals combustion with adjusted operation method is feasible.

关 键 词：混煤燃烧 两相流动 数值模拟 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程] TM621.2[电气工程—电力系统及自动化]