| 焦炭塔变形机理分析 |
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| 引用本文： | 钟文镇,王璠,夏伟,刘人怀.焦炭塔变形机理分析[J].华南理工大学学报(自然科学版),2008,36(4):29-34. |
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| 作者姓名： | 钟文镇 王璠 夏伟 刘人怀 |
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| 作者单位： | 1. 华南理工大学,机械与汽车工程学院,广东,广州,510640
2. 暨南大学,应用力学研究所,广东,广州,510632 |
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| 摘 要： | 焦炭塔由于其苛刻的作业工况，在运行若干年后出现筒体鼓胀变形。对焦炭塔的变形机理进行了分析，利用圆柱形壳体弯曲理论对焦炭塔筒体在温度应力和内压的作用下所产生的内力和位移进行求解。利用MISES屈服准则，可以判定在水冷阶段筒体部分区域进入塑性,产生周期性的塑性残余变形。残余变形随着生焦次数的增加而增加，由此可得出焦炭塔的鼓胀变形主要是渐次塑性变形积累的结果。
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| 关 键 词： | 焦炭塔 渐次塑性积累 鼓胀变形 圆柱形壳体 |
| 文章编号： | 1000-565X(2008)04-0029-06 |
| 收稿时间： | 2007-5-30 |
| 修稿时间： | 2007年5月30日 |
Deformation Mechanism Analyses of Coke Drum |
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| Zhong Wen-zhen,Wang Fan,Xia Wei,Liu Ren-huai.Deformation Mechanism Analyses of Coke Drum[J].Journal of South China University of Technology(Natural Science Edition),2008,36(4):29-34. |
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| Authors: | Zhong Wen-zhen Wang Fan Xia Wei Liu Ren-huai |
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| Abstract: | The coke drum deformation appears after many years slashing running. Bending theory of cylindrical shell was used to solve the internal force and displacement of the coke drum body which was suffer from temperature stress and inner compressive force. MISES yield rule was used to determine the region which had yielded during the process of temperature rising and dropping. The deformation increased with the cycle running of the coke drum. Therefore, we come to the conclusion that the deformation of coke drum is the result of progressive plastic deformation. |
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