| 直套管型自身预热式辐射管数值模拟 |
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| 引用本文： | 丁建亮,刘训良,温治,田野.直套管型自身预热式辐射管数值模拟[J].工业炉,2009,31(6):1-4. |
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| 作者姓名： | 丁建亮 刘训良 温治 田野 |
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| 作者单位： | 北京科技大学,热能工程系,北京,100083 |
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| 摘 要： | 建立了直套管型自身预热式辐射管的三维传热过程物理数学模型，并采用FLUENT软件对辐射管的温度场进行了数值模拟。结果表明：随着燃料喷射速度的提高和二次空气量的加大，外壁整体温度升高，辐射管的加热能力增强。较长的内衬管可以更好地导流烟气，保护辐射管外壁，增强辐射管表面温度的均匀性。燃料沿轴向喷入时，火焰长度较长，炯气高温区域较大，有利于辐射管温度均匀性的提高，
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| 关 键 词： | 自身预热式辐射管 数值模拟 内衬管 |
Numerical Simulation of Straight Sleeve Type Self-Regenerative Radiant Tube |
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| DING Jian-liang,LIU Xun-liang,WEN Zhi,TIAN Ye.Numerical Simulation of Straight Sleeve Type Self-Regenerative Radiant Tube[J].Industrial Furnace,2009,31(6):1-4. |
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| Authors: | DING Jian-liang LIU Xun-liang WEN Zhi TIAN Ye |
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| Affiliation: | DING Jian-liang,LIU Xun-liang,WEN Zhi,TIAN Ye (Department of Thermal Engineering,Beijing University of Science and Technology,Beijing 100083,China) |
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| Abstract: | A three-dimensional physical mathematical model is developed for the straight sleeve type self-regenerative radiant tube, and the temperature field of radiant tube is numerically simulated with FLU- ENT software. The results show that the temperature of outer tubal wall and the heating capacity increase due to the improvement of fuel inlet velocity and the second air flow ratio. The flue gas flow field and pro- tection of the outer wall can be improved if the length of inner pipeline increases. Moreover, th... |
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| Keywords: | self-regenerative radiant tube numerical simulation inner pipeline |
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