| 操作条件对胀接接头密封性能的影响 |
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| 引用本文： | 段成红,钱才富. 操作条件对胀接接头密封性能的影响[J]. 化工设备与管道, 2007, 44(2): 18-21,31 |
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| 作者姓名： | 段成红 钱才富 |
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| 作者单位： | 北京化工大学机电工程学院,北京,100029;北京化工大学机电工程学院,北京,100029 |
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| 摘 要： | 通过有限元分析研究了操作条件对液压胀接接头密封性能的影响,即压力和温度对密封环带上最小残余接触压力的影响。研究发现,如果管程压力或温度高于壳程压力或温度,接头密封性能加强。但是在一定的管程壳程温差下,不论增加管程还是壳程的温度,接头的密封性能都可能变差。
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| 关 键 词： | 残余接触压力 密封 换热管与管板接头 有限元分析 |
| 文章编号： | 1009-3281（2007）02-0018-05 |
| 修稿时间： | 2006-08-252006-09-11 |
Effects of Working Condition on Tightness of Hydraulically Expanded Tube-to-tubesheet Joints |
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| Duan Chenghong,Qian Caifu. Effects of Working Condition on Tightness of Hydraulically Expanded Tube-to-tubesheet Joints[J]. Process Equipment & Piping, 2007, 44(2): 18-21,31 |
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| Authors: | Duan Chenghong Qian Caifu |
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| Affiliation: | Collage of Mechanical and Electrical Engineering Beijing University of Chemical Technology, Beijing 100029 |
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| Abstract: | In this paper,finite element analysis was performed to investigate the effects of working conditions on the tightness of the hydraulically expanded tube-to-tubesheet joint,specifically the effects of pressures and temperatures on the minimum residual contact pressure on the sealing circular-bands.It is found that if the tube-side pressure or temperature is larger than the shell-side pressure or temperature,the joint tightness will be enhanced.But for a certain temperature difference,increase of the temperature of whatever tube-side or shell-side could be harmful for the tightness of the joint. |
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| Keywords: | residual contact pressure tightness tube-to-tubesheet joint finite element analysis |
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