Numerical Analysis of Buried Heating Branch Junctions

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Abstract:

In this paper, the tee of buried heating pipe network has been investigated via the elastic-plastic finite element method. Fourth equivalent stress and distribution regularity of buried heating tees have been analyzed at different branch pipe diameter d/D and different branches length. The obtained results show that the limit length of tees decreases for the pipe diameter above DN500. The smaller diameter can lower the Von Mises stress of tees effectively. The stress of the outer wall is always greater than the internal stress.

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393-396

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December 2014

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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[1] Fu-Zhen Xuan, Changjun Liu, Pei-Ning Li. An approximative solution for limit load of piping branch junctions with circumferential crack and finite element validation. Nuclear Engineering and Design, 2004, 2357.

DOI: 10.1016/j.nucengdes.2004.11.004

Google Scholar

[2] Xuan Fuzhen, Li Peining. Finite Element Analysis of Squeeze the tee elastic-plastic stress distribution. Chemical equipment and pipeline, 2002, 05: 43-45+54-4. (in Chinese).

Google Scholar

[3] Jia Huiling, Li Qiang, Sun liang. FE Analysis on Elastic-plastic Stress Distribution on Oil Transmission Branch Junction. Coal Mine Machinery, 2008, 06: 76-79. (in Chinese).

Google Scholar

[4] FACTORY-MADE WROUGHT BUTT-WELDING FITINGS (ASME B16. 9-2012). AN AMERICAN NATIONAL STANDARD: 13.

Google Scholar

[5] Shi Yingquan, Wang Lubin. Evaluation of Strength and Life for Boiler Tees at Elevated Temperature by Stress Analysis Method. Journal of Power Engineering. (in Chinese).

Google Scholar

[6] Tangshan thermal company. CJJ/T81-2013. Technical Specification for Directly Buried Hot-water Heating Pipeline in City. Beijing: China Architecture&building press, 2013. (in Chinese).

Google Scholar

[7] Wang Fei, Zhang Jianwei. Engineering Dsign of Buried Heating pipe. China Architecture & building press, 2007, 1(1): 89-92. (in Chinese).

Google Scholar