International Journal of Frontiers in Engineering Technology, 2024, 6(4); doi: 10.25236/IJFET.2024.060420.
Hui Liu, Chuanhong Wang, Ming Li, Lixin Zhou, Jinghong Dai, Yongliang Zeng, Ying Li
PetroChina Southwest Oil & Gas Field Company Chongqing Gas Mine, Chongqing, 400120, China
In gas transmission stations, conventionally designed pipeline flame arresters are prone to clogging, affecting the normal venting of natural gas. Therefore, it is necessary to optimize the parameters of flame arresters. Modeling and analysis of online pipeline flame arresters were conducted using Ansys Workbench software. The results indicate that the quenching distance of the flame increases linearly with the increase in the aperture ratio; the explosion pressure and flame speed at the front of the arrester generally decrease as the aperture ratio increases; the explosion pressure at the front of the arrester increases with the thickness of the flame arresting core, while the flame speed decreases with the increase in the thickness of the flame arresting unit. Thus, the optimal aperture ratio for online pipeline flame arresters is determined to be 0.4, with a thickness of 120mm.
Flame arrester; Numerical simulation; Parameter optimization
Hui Liu, Chuanhong Wang, Ming Li, Lixin Zhou, Jinghong Dai, Yongliang Zeng, Ying Li. Structural Parameter Optimization Study of Online Pipeline Flame Arresters. International Journal of Frontiers in Engineering Technology (2024), Vol. 6, Issue 4: 127-132. https://doi.org/10.25236/IJFET.2024.060420.
[1] Peng F, Liu H, Cai W. Combustion diagnostics of metal particles: a review [J]. Measurement Science and Technology, 2023, 34(4): 042002.
[2] Zheng Jinlei. Research on the flame-retardant performance testing and characteristics of pipeline flame arresters [D]. Jiangsu: China University of Mining and Technology, 2022.
[3] Liu Xi, Liu Shijie. Design of gas transmission pipelines and venting systems in natural gas stations [J]. Shanghai Gas, 2021, (06): 12-14+26.
[4] Hu Chunming. Study on the propagation and quenching of methane/air premixed flame in a flat slit [J]. Liaoning Chemical Industry, 2008, (06): 375-377+419.
[5] Jiang Deming. Combustion and emission of internal combustion engines[M]. Xi'an: Xi'an Jiaotong University, 2002.
[6] Zhou Kaiyuan, Li Zongfen, Zhou Zijin. Experimental study on the quenching effect of corrugated plate flame arresters on deflagration flames [J]. Journal of the University of Science and Technology of China, 1997(04): 77-82.
[7] Wen Xiaoping, Yu Minggao, Xie Maozhao, et al. Dynamic propagation and quenching characteristics of gas deflagration flames in narrow slits [J]. Journal of China Coal Society, 2013, 38(S2): 383-387.