燃料对重整加热炉燃烧过程影响的数值模拟  

Numeric Simulation on the Influence of Different Fuels on the Combustion Performance in a Continuous Reformer

作　　者：江华[1] 毛羽[1] 吴德飞[1] 王娟[1] 孙毅[2] 

机构地区：[1]石油大学化工学院,北京102200 [2]中石化北京设计院,北京100011

出　　处：《工业炉》2004年第1期8-14,共7页Industrial Furnace

摘　　要：对连续重整加热炉采用不同的燃料进行燃烧的数值模拟。燃烧器以美国Johnzink公司的一种瓦斯燃烧器为几何原型,对燃烧器的复杂几何形状没有进行任何简化实现了包括炉膛的结构化网格的划分,采用甲烷、乙烷、丙烷和丁烷四种不同的气体燃料,用标准的k-ε湍流模型、双δ混合燃烧模型和离散传播辐射模型对连续重整加热炉进行了三维全尺寸数值模拟。由数值模拟结果对连续重整加热炉内采用不同燃料所造成的流场、温度场的变化给出了合理的分析和解释,并考察燃料变化对火焰的影响。数值模拟结果对进一步优化设计燃烧器连续重整加热炉有很好的指导意义。In the article,numerical simulation has been made on different fuel (include methane, ethane, propane and butane) combustion in a continuous reformer. Structured grid is made with no simplification and modification of the complicated structure in the hearth and gas burner from Johnzink Coraporation . The standard k-ε　turbulent model, double δ turbulent combustion model and discrete transfer radiation model are used to simulate the three_dimensional turbulent flow and gas combustion in the hearth. The result of the numerical simulation predicts the flow field, temperature and species concentrations, especially the contrast of the flame of different fuel jet. It is helpful to the optimization of burner and continuous reformer.

关 键 词：重整加热炉 燃料 燃烧过程 数值模拟 辐射 结构化网格 燃烧器 催化重整装置 

分 类 号：TE624[石油与天然气工程—油气加工工程]