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| Stability analysis of venting and flare stack system in natural gas processing plant |
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SHU Heng-mu1, WEI Sheng-long1, YANG Yuan2, SONG Zuo-ling1, PAN Xiu-zhen1
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(1.College of Storage ＆ Transportation and Architectural Engineering in China University of Petroleum, Qingdao 266580, China;2.The Department of Pipe in Beijing Petrochemical Engineering Company Limited Xi 'an Subsidiary, Xi 'an 710075, China)
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| Abstract: |
| The venting and flare stack system of the fourth natural gas processing plant in Sulige Gas-field was taken as the research project. By analyzing the causes and mechanism of such destruction comprehensively, the concept of the destruction of stability was put forward, and the interaction between flare and tower was simplified as spring constraint. The critical conditions of the flare instability and failure were analyzed using the energy method and finite element method. The results show that the internal pressure decreases the stability of flare, while the external pressure enhances the stability of flare. The results of two analytical methods are consistent, which confirms the feasibility of the theoretical method. |
| Key words: venting and flare stack system stability finite element method numerical analysis |
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