660MW超超临界锅炉高温腐蚀数值模拟  

Numerical Simulation for the Reduction of High Temperature Corrosion in Boiler of 660MW Supercritical Unit

作　　者：邓中乙[1] 马斌[1] 余永生[1] 陈剑[1] 刘彦鹏[1] 谢红[1] 

机构地区：[1]安徽省电力科学研究院,合肥230601

出　　处：《安徽电气工程职业技术学院学报》2012年第3期71-75,共5页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：高温腐蚀是电站锅炉爆管的主要原因之一。借助计算流体力学软件Fluent,应用Eu-lerian/Lagrangian方法对一台660MW超超临界墙式布置切圆燃烧锅炉进行数值模拟,着重研究了锅炉炉内流动、传热、燃烧情况。结果表明:炉内切圆形成完整,炉内充满度较好,水冷壁周围一氧化碳浓度很高,易引起高温腐蚀。此结论与试验结果相符,证明了模拟的可靠性。High temperature corrosion is one of the main causes of boiler tube explosions. Using a CFD software FLUENT, an Eulerian/Lagrangian approach was employed to investigate numerically the flow field, heat transfer and combustion process in a tangentially fired furnace of 660 MW pulverized coal boiler. The result shows that the concentration of CO is high around the water wall. It is easy to cause high tem- perature corrosion. A comparison of the calculation and experimental data shows that the numerical simu- lation can be predicted accurately.

关 键 词：锅炉 数值模拟 高温腐蚀 

分 类 号：TK224.9[动力工程及工程热物理—动力机械及工程]