为优化某厂的钢包烘烤制度,耦合了烘烤过程中流体流动、燃烧和换热过程,建立了用于数值计算的三维数学模型,利用计算流体力学软件FLUENT,采用有限差分方法和修正的速度一压力耦合算法SIMPLEC,计算了钢包内的燃烧现象,重点分析了不同煤气流量下钢包内煤气燃烧温度场的变化规律,并进行了试验验证。结果表明,煤气流量800m^3/h时,烘烤温度较为理想,并且烘烤均匀性好,是提高炉壁温度的最佳流量,计算结果与试验结果基本吻合。提出了可供现场参考的烘烤工艺参数。
In order to optimize the ladle baking system of a factory, numerical simulation of gas flow, combustion and heat transfer in ladle during the baking process was carried out. Using FLUENT code with finite difference and SIMPLEC methods, the temperature distribution of ladle baked at different flux of gas was investigated numerically and experimentally. Results show that the improvement of gas flow can improve baking temperature, 800 m^3/h is the most appropriate flow, in this condition, the burning temperature is highest, and baking temperature is more even. The calculated results agree with the experimental observation. In addition, the optimal baking parameters for the actual performance were presented.
参考文献
[1] | 殷瑞钰.冶金流程工程学[M].北京:冶金工业出版社,2004 |
[2] | 涂卫国,刘广林,刘日新.高效节能型钢包烘烤器的研究和设计[J].钢铁,2000(07):48-52. |
[3] | 傅维标,周雁,杜以恒,龚景松,何裕昆,陈力田,张岩,刘双久.高温低氧燃烧炉的实验与数值计算[J].工业炉,2001(03):45-49. |
[4] | 张毅勐,张鹤声,刘敏飞,朱彤.高温空气燃烧燃气热态试验炉非稳态数值模拟[J].能源研究与信息,2003(03):143-153. |
[5] | 饶文涛 .高温空气燃烧特性及应用研究[D].同济大学,2002. |
[6] | Fiveland W A .Discrete Ordinate Solutions of the Radiative Heat Transport Equation for Rectangular Enclosures[J].Journal of Heat Transfer,1984,106(02):699. |
[7] | Turelove J S .Discrete Ordinate Solutions of the Radinate Heat Transport Equation[J].Journal of Heat Transfer,1987,109(04):1048. |
[8] | 欧俭平 .高温空气燃烧技术在冶金热工设备上的应用及数值仿真和优化研究[D].中南大学,2004. |
[9] | 袁玲,朱苗勇,陈洁.AOD炉蓄热式烘烤过程的数值模拟研究[J].工业加热,2008(06):39-42. |
[10] | 欧俭平,詹树华,萧泽强.蓄热式钢包烘烤的数值模拟[J].钢铁研究学报,2005(01):19-22,25. |
[11] | 杨泽宽;王魁汉.热工测试技术[M].沈阳:东北工学院出版社,1987 |
[12] | 张平.铠装热电偶测温的分流误差[J].计量技术,1999(03):20. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%