焦炭塔瞬态温度场的分析

宁志华; 刘人怀

doi:10.3879/j.issn.1000-0887.2010.03.003

焦炭塔瞬态温度场的分析

doi: 10.3879/j.issn.1000-0887.2010.03.003

宁志华^1,2,
刘人怀^1,2

暨南大学“重大工程灾害与控制”教育部重点实验室,广州 510632;2.暨南大学应用力学研究所力学与土木工程系,广州 510632

基金项目: 国家自然科学基金资助项目(10372035);国家自然科学基金青年基金资助项目(10902043);“工程结构故障诊断”广东省高等学校科研型重点实验室资助项目

详细信息

作者简介:
宁志华(1976- ),女,广西钦州人,讲师,博士生(E-mail:ning_zhihua@163.com);刘人怀,教授,工程院士(联系人,Tel:+86-20-85227005;Fax:+86-20-85228275;E-mail:lrh@jnu.edu.cn).

中图分类号: O343.6;O242.1
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出版历程
- 收稿日期: 1900-01-01
- 修回日期: 2010-01-05
- 刊出日期: 2010-03-15

Analysis of Transient Temperature Field in Coke Drums

NING Zhi-hua^1,2,
LIU Ren-huai^1,2

Key Labratory of Disaster Forecast and Control in Engineering, Ministry of Education of the People's Republic of China, Guangzhou 510632, P. R. China;

摘要

摘要: 由于循环的温度变化产生的严重温度梯度是导致焦炭塔出现鼓胀和开裂的主要原因之一．与以往文献的有限元分析不同，从二维热传导理论出发，获得了焦炭塔的轴向和径向二维瞬态温度场的解析解．所考虑的焦炭塔塔体为有限长，并采用迭代法模拟进油阶段和进水阶段中由于液面不断上升引起的动态边界条件．数值结果分析表明，该文理论模型能正确描述焦炭塔瞬态温度场的基本特征．同时，探讨了几何尺寸和冷却水升速对轴向温度梯度的影响．
- 焦炭塔 /
- 圆柱壳 /
- 瞬态温度场 /
- 温度梯度
Abstract: One of the primary reasons leading to bulging and cracking in a coke drum is the severe temperature gradient due to cyclic temperature variation. Based on the two-dmiensional heat conduction theory, the analytical solution of the transient temperature field in the coke drum was derived, which was different from the known FEM results. The length of the coke drum was considered finite, and the dynamic boundary conditions caused by fluid uninterrupted rising in oiling and watering stages were smiulated by the iteration method. The numerical results show that the present theoreticalmodel can accurately describe basic features of the transient temperature field in the coke drum. Effects of the geometry of the coke drum and the rising velocity of quench water on the axial temperature gradient are also discussed.
- coke drum /
- cylindrical shell /
- transient temperature field /
- temperature gradient

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参考文献(21)

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