挡板宽度对热风炉矩形喷口燃烧器流动的数值模拟研究  

The Numerical Simulation of Hot Blast Stove of Rectangular Nozzle Burner under Different Baffle Width

作　　者：杜京昌 谭凯[2] 

机构地区：[1]广东美的制冷设备有限公司,广东佛山528000 [2]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《工业加热》2015年第6期56-59,共4页Industrial Heating

摘　　要：针对某钢厂的热风炉矩形喷口燃烧器进行了数值模拟研究,主要考察了不同挡板宽度对管道内流场、燃烧室内流场、出口速度均匀性的影响。结果发现空气在管道内的速度分布不均匀,管道两边的速度比中间大;燃烧器内速度的分布都呈现出两边大中间小的情况,但是随着挡板宽度的增加,挡板边缘气流减弱,中间的气流流速会增加;出口速度的均匀性随着挡板宽度增加而提高,与实验结果对比,误差在1%内。The numerical simulation study of hot blast stove of rectangular nozzle in a steel plant was researched. Studied the effect ofdifferent baffle on the flow inside pipeline, the flow field of the combustion chamber, the influence of the exit velocity uniformity. Theresults indicated that the velocity distribution was uneven in the pipe and the middle was slower than the side; the speed of both sides inburner was faster than the middle. As baffle width increased, the speed increased in the middle. The exit velocity uniformity was increasedas baffle width increased, compared to experiment results the error is within 1%.

关 键 词：热风炉 挡板宽度 数值模拟 流场 

分 类 号：TF051[冶金工程—冶金物理化学]