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清华大学学报(自然科学版)  2016, Vol. 56 Issue (1): 102-105    DOI: 10.16511/j.cnki.qhdxxb.2016.23.015
  化学工程 本期目录 | 过刊浏览 | 高级检索 |
开孔接管对卧式储罐承载能力的影响分析
孙红梅1, 赵菲2, 张亚新1
1. 新疆大学 化学化工学院, 乌鲁木齐 830046;
2. 中国石化工程建设有限公司, 北京 100101
Effects of openings and nozzles on the load-carrying capability of a horizontal tank
SUN Hongmei1, ZHAO Fei2, ZHANG Yaxin1
1. College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China;
2. China Sinopec Engineering Incorporation, Beijing 100101, China
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摘要 压力容器上都不可避免地有开孔接管, 从而可能影响容器的承载能力。该文采用有限元方法分析了一个带有接管卧式容器的外压临界载荷和内压极限载荷, 并通过改变接管大小和接管壁厚来考察开孔接管的影响。研究发现: 开孔接管并没有降低卧式容器的外压承载能力, 但会降低设备的内压极限承载能力; 壁厚相同时开孔接管的直径增大, 对外压失稳临界压力几乎没有影响, 但塑性极限载荷值会明显降低; 开孔接管直径相同, 壁厚增大, 设备的外压临界载荷稍有增加, 而塑性极限载荷明显提高。
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孙红梅
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关键词 卧式储罐有限元法失稳分析极限分析    
Abstract:Openings and nozzles in a pressure vessel may affect the load-carrying capability of the vessel. Finite element method was used to analyze the critical load of a horizontal vessel with a nozzle under external pressure loading and the limit load under internal pressure loading, with the effects of openings and nozzles with different sizes and thicknesses on the load-carrying capability of the horizontal tank being specially investigated. The results show that the critical load showing the vessel instability almost keeps constant when a nozzle is present at an opening, but that the limit load reflecting the vessel strength obviously decreases. For the same nozzle thickness, with increasing nozzle diameter, the limit load of the vessel remarkably decreases, with the critical load under the external pressure keeping constant. For the same nozzle diameter, the limit load of the vessel significantly increases with increasing nozzle thickness, with the external pressure increase being very limited.
Key wordshorizontal tank    finite element analysis    stability analysis    limit analysis
收稿日期: 2014-11-20      出版日期: 2016-01-29
ZTFLH:  TE821  
引用本文:   
孙红梅, 赵菲, 张亚新. 开孔接管对卧式储罐承载能力的影响分析[J]. 清华大学学报(自然科学版), 2016, 56(1): 102-105.
SUN Hongmei, ZHAO Fei, ZHANG Yaxin. Effects of openings and nozzles on the load-carrying capability of a horizontal tank. Journal of Tsinghua University(Science and Technology), 2016, 56(1): 102-105.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2016.23.015  或          http://jst.tsinghuajournals.com/CN/Y2016/V56/I1/102
  表1 卧式储罐主要技术参数
  图1 卧式储罐的整体几何模型
  表2 不同大小的开孔接管对外压临界载荷的影响
  图2 极限载荷的确定
  表3 不同大小的开孔接管对容器极限载荷的影响
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