炉内燃烧场数值模拟研究  

STUDY ON THE NUMERICAL SIMULATION OF THE COMBUSTION IN THE BURNING FURNACE

作　　者：艾志久[1] 蒋静[1] 吴昌[2] 常宏岗[3] 陈昌介[3] 

机构地区：[1]西南石油大学机电工程学院,四川成都610500 [2]中国石化管道储运分公司黄岛油库,山东青岛266000 [3]中国石油西南油气田分公司天然气研究院,四川成都610061

出　　处：《西南石油大学学报（自然科学版）》2011年第3期165-168,203,共4页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：中国石油天然气集团公司基金项目"硫磺回收及尾气处理新工艺研究"(2008B-1304)

摘　　要：为深入了解硫磺回收装置中主燃烧炉的燃烧情况,参照现役结构建立了燃烧炉的三维实体模型,依据忠县天然气净化厂燃烧炉的实际运行参数对炉内组分及入口条件进行了设置,采用realinzable k～ε双方程湍流模型及EDC燃烧模型对炉内燃烧场进行了数值模拟。计算结果表明:该方法能够较为真实地反映炉内燃烧情况;现役燃烧炉结构可促进气体间对流换热,实现炉内气体的强力混合;燃烧器是制硫反应的关键区域,单质硫在燃烧器内增量最快,提高燃烧器内气体混合效果有助于反应进行;气体在燃烧炉出口处速度分布不均匀,贴近炉衬处流速较大,说明现役花墙结构及布置有待改进。In order to deeply study the combustion in the main burning furnace used in sulfur recovery unit,thethree-dimensional solid model of burning furnace is set up with reference to the existing building.On the basisof the operation parameters of Zhongxian Natural Gas Purification Plant,the combustion components and entryconditions are set up;one should adopt the realinzable turbulence model and the analysis of EDC combustion modelto simulate the combustion in the main burner furnace.The results showed that the method reflect the situation inthe burning furnace;the structure of the furnace in service can promote heat convection among gas,and make gasmix strongly;the most intense reaction occurs in the flame region,where sulfur is increases fastest in the flamezone;meanwhile,increasing the mix effectiveness of gas in the inflamer is beneficial for reaction,Gas at the exits ofburning furnace is not well-distributed,and the velocity close to lining was high,which indicates that the structureof tracery wall and arrangement need to be improved.

关 键 词：硫化氢 燃烧炉 速度 组分分布 EDC模型 数值模拟 

分 类 号：TE931[石油与天然气工程—石油机械设备]