| CHEMICAL ENGINEERING |
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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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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.
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| Keywords
horizontal tank
finite element analysis
stability analysis
limit analysis
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Issue Date: 15 January 2016
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2016,
Vol. 56
