防爆墙对某厂区LPG 管网泄漏-爆炸事故后果的影响

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中图分类号：X932；0389 文献标志码：A 文章编号：1672-9315（2025）04-0716-10DOI：10.13800/j. cnki. xakjdxxb. 2025.0408

Effects of explosion-proof wall on the leakage-explosion accident of LPG pipe network in a factory

WANG Qiuhong1，DU Sunwei1， DONG Guoqiang²， LUO Zhenmin'， ZHANG Mingguang³， XUE Yunfan'

（1.CollegeofSafetySienceandEngineeing，Xi'an UniversityofScienceandTechnology，Xi'ano54，China; 2. Institute for Hygiene of Ordnance Industry， Xi' an 71oo65， China; 3.College of Safety Science and Engineering，Nanjing Technology University，Nanjing21ooo9，China）

Abstract： A quantitative study was conducted using FLACS software to assess the mitigation effects of explosion hazards caused by LPG pipeline leakage in a petrochemical plant in Shaanxi， with a focus on reducing explosion risks by installing blast walls between the facility area and the offce-living zone. The study investigated the blast mitigation performance of the blast walls by analyzing their position D （the distance between the blast wall and the leftmost edge of the ofice-living zone），height H，and thickness d.The results demonstrated that the farther the blast wallis from the explosion source and the closer it is to the office-living zone，the better the protective effect on the office-living zone.For a 24m high building within the ofice-living zone of the petrochemical plant，when the blast wall was positioned 5 m from the office-living zone withheights of 3 m and 11m ，the corresponding reductions in overpressure behind the wall were 52.20% and 70.33% ，respectively.For blast wall thicknesses d of 0.1，0.3，0.5 m and 0.7m ，the corresponding overpressure reductions behind the wall were 68.29% ， 67. 44% ， 66.80% ，and 66.41% ，respectively. For rigid structural blast walls，the height of the wall has a more significant impact on reducing overpressure behind the wall compared to its thickness， indicating that the design of blast wall height ismore critical for explosion prevention and mitigation.The simulation results provide a reference for proactive hazard protection in the petrochemical plant.

Key words： LPG; leakage diffusion; explosion risk analysis; location of explosion-proof wal; height of the explosion-proof wall; thickness of the explosion-proof wall

0 引言

随着石化行业的蓬勃发展，液化石油气（LiquifiedPetroleumGas，简称LPG）作为一种化工原料，具有易存储、运输便利、高热值等优势，在工业生产和日常生活中被广泛应用[1-2]。（剩余14286字）