Analysis of the Flame-Arresting Performance of Pipeline Flame Arresters with Solid Particle Deposition

• Published in: Processes Vol. 13; no. 6; p. 1938
• Main Authors: Huang, Qian, Xiao, Jiangtao, Liao, Rui, Xie, Yuxin, Long, Xueyuan, Zeng, Cheng
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 19.06.2025
• Subjects: Air pollution; Analysis; Deflagration; Design optimization; Energy conservation; Flame arresters; Flow velocity; Gas pipelines; Gas transmission; Gases; Heat conductivity; Mathematical models; Natural gas; Numerical analysis; Numerical models; Particle deposition; Particulates; Performance evaluation; Pipe lines; Porosity; Pressure drop; Propagation; Reynolds number; Simulation methods; Structural design; Turbulence models; Vapor phases; Velocity; Velocity distribution; Venting systems; China
• ISSN: 2227-9717; 2227-9717
• DOI: 10.3390/pr13061938

In gas transmission stations, flame arrestors are typically installed in pipelines and venting systems to prevent the flames resulting from accidental ignition or deflagration of combustible gases during transmission from propagating through the pipelines. During actual operation, the presence of solid particulates in the gas compromises the flame-arresting efficacy and increases the failure rate of current pipeline flame arrestors. This study employs an integrated approach combining theoretical analysis and numerical simulation to establish a numerical model for flame arrestors that accounts for solid particle deposition effects. The model reveals the distribution characteristics of velocity fields, pressure fields, gas phase volumetric concentration fields, and solid deposition rate fields within pipeline flame arrestors. It systematically investigates the influence mechanisms of porosity, flame arrestor core thickness, inlet flame velocity, arrestor length, particle size, particle concentration on pressure drop, flame arrestment velocity, and deposition rate. These findings provide theoretical support for optimizing flame arrestor structural design and reducing operational failure rates.