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首页> 外文期刊>Journal of University of Science and Technology Beijing >Numerical calculation of flow and heat transfer process in the new-type external combustion swirl-flowing hot stove
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Numerical calculation of flow and heat transfer process in the new-type external combustion swirl-flowing hot stove

机译：新型外燃旋流热风炉内传热过程的数值计算

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摘要

It is clarified that the important method to improve the blast temperature of the small and the middle blast furnaces whose production is about two-thirds of total sum of China from 1000℃ to 1250-1300℃ is to preheat both their combustion-supporting air and coal gas. The air temperature of blast furnaces can be reached to 1250-1300℃ by burning single blast furnace coal gas if high speed burner is applied to blast furnaces and new-type external combustion swirl-flowing hot stove is used to preheat their combustion-supporting air. The computational results of the flow and heat transfer processions in the hot stove prove that the surface of the bed of the thermal storage balls there have not eccentric flow and the flow field and temperature field distribution is even. The computational results of the blast temperature distribution are similar to those determination experiment data. The numerical results also provide references for developing and designing the new-type external combustion swirl-flowing hot stoves.
机译：明确指出，提高中小高炉的鼓风温度的重要方法是将它们的助燃空气和预热空气从1000℃提高到1250-1300℃，这些高炉的产量约占中国总产量的三分之二。煤气。如果在高炉上使用高速燃烧器，并使用新型外燃涡流式热风炉预热其燃烧辅助空气，则通过燃烧单个高炉煤气可以使高炉的空气温度达到1250-1300℃。 。热炉内流动和传热过程的计算结果证明，那里的储热球床表面没有偏心流，流场和温度场分布均匀。鼓风温度分布的计算结果与确定实验数据相似。数值结果也为开发和设计新型外燃旋流式热风炉提供参考。

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