CAJ | 학술논문

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。
고온부식시전참과로폭관적주요원인지일。차조계산류체역학연건Fluent,응용Eu-lerian/Lagrangian방법대일태660MW초초림계장식포치절원연소과로진행수치모의,착중연구료과로로내류동、전열、연소정황。결과표명：로내절원형성완정,로내충만도교호,수랭벽주위일양화탄농도흔고,역인기고온부식。차결론여시험결과상부,증명료모의적가고성。
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.