| 钉头管自支承式换热器壳程性能研究 |
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| 引用本文： | 江楠,江飞飞,许海峰.钉头管自支承式换热器壳程性能研究[J].压力容器,2008,25(3):18-22. |
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| 作者姓名： | 江楠 江飞飞 许海峰 |
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| 作者单位： | 1. 华南理工大学,化工机械研究所,广东,广州,510641
2. 华南理工大学,科技实业总厂,广东,广州,510640 |
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| 摘 要： | 对钉头管自支承式换热器钉头纵向间距分别为20，35和50mm的三种钉头管-光管混合管束进行了壳程性能试验研究，并与纯光管管束试验进行了比较，得到了钉头管自支承式换热器的壳程摩擦阻力系数和传热膜系数的回归关联式。研究结果表明钉头管自支承式换热器具有良好的壳程强化传热性能，当1000≤Re≤4295时，以钉头纵向间距s=35mm的混合管束的α／Δp性能最优，其平均值比光管管束提高了34％。
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| 关 键 词： | 自支承式换热器 钉头管 混合管束 壳程强化传热 |
| 文章编号： | 1001-4837(2008)03-0018-04 |
| 修稿时间： | 2007年12月26 |
Research on the Shell Side of Self-support Heat Exchanger with Mixed Tubes Bundles of Pin-finned and Plain tubes |
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| JIANG Nan,JIANG Fei-fei,XU Hai-feng.Research on the Shell Side of Self-support Heat Exchanger with Mixed Tubes Bundles of Pin-finned and Plain tubes[J].Pressure Vessel Technology,2008,25(3):18-22. |
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| Authors: | JIANG Nan JIANG Fei-fei XU Hai-feng |
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| Affiliation: | JIANG Nan,JIANG Fei- fei ,XU Hai- feng ( 1. Institute of Chemical Engineering and Machinery, South China University of Technology, Guangzhou 510641, China;2. The Science and Technology Industrial Factory of South China University of Technology, Guangzhou 510640, China) |
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| Abstract: | This thesis conducted a shell - side performance research on three kinds of mixed tubes bundles of pinfinned and plain tubes whose longitudinal distance between nailheads are s =20,35,50 mm respectively. After comparing with the experiment on bundles of plain tubes, this thesis gained the regression correlative equation concerning the friction resistance coefficient of shell side and heat transfer film coefficient of self - support heat exchanger of pin - finned tubes. The research results show that self - support heat exchanger of pin - finned tubes has excellent intensified heat transfer performance at shell - side. When 1000 ≤Re≤4295, the mixed tubes bundles （s = 35 mm） has the best α/Δp performance. Compared with bundles of plain tubes, its average α/Δp increases by 34%. |
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| Keywords: | self - support heat exchanger pin - finned tube mixed tubes bundle shell - side heat transfer enhancement |
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