小型移动式LNG橇装回收站防火间距探讨  

Discussion on fire separation distance of small mobile LNG skid-mounted recycling station

作　　者：刘盛兵[1,2] 刘坤 唐春凌[1,2] 赵松 孙明炬[1,2] 王礼翔 谢仲海[3] Liu Shengbing;Liu Kun;Tang Chunling;Zhao Song;Sun Mingju;Wang Lixiang;Xie Zhonghai(Research Institute of Safety,Environment and Technology Supervision,PetroChina Southwest Oil&Gasfield Company,Chengdu,Sichuan,China;Sichuan Tianyu Petroleum Environmental Protection and Safety Technology Consulting Service Co.,Ltd.,Chengdu,Sichuan,China;Chengdu Natural Gas Chemical Plant General,PetroChina Southwest Oil&Gasfield Company,Chengdu,Sichuan,China)

机构地区：[1]中国石油西南油气田公司安全环保与技术监督研究院 [2]四川天宇石油环保安全技术咨询服务有限公司 [3]中国石油西南油气田公司成都天然气化工总厂

出　　处：《石油与天然气化工》2022年第6期125-131,共7页Chemical engineering of oil & gas

基　　金：中国石油西南油气田公司科研计划项目“零散天然气移动式橇装回收装置安全生产条件研究”(20210307-01)。

摘　　要：目的核实小型移动式LNG橇装回收站内集中控制室、装车区值班室与LNG设施遵循现有标准规定的防火间距是否满足生产实际要求。方法利用挪威船级社研制的PHAST软件,选取具有代表性的泄漏工况,对LNG泄漏可能引发的池火热辐射、喷射火热辐射、蒸气云爆炸及蒸气云扩散影响距离进行模拟计算。结果得出了LNG设施在不同泄漏孔径情况下引发不同事故后果的影响距离。结论基于工艺管道泄漏概率统计,给出了小型移动式LNG橇装回收站内集中控制室、装车区值班室与LNG设施防火间距的建议。Objective The aim of this study is to verify whether the fire separation distance between the centralized control room,the duty room of the loading area,and the LNG facility in the small mobile LNG skid-mounted recycling station meets the actual production requirements in accordance with the existing standards.Methods PHAST software developed by Det Norske Veritas(DNV)was used to simulate and calculate the thermal radiation of pool fire,jet fire,vapor cloud explosion,and vapor cloud diffusion influence distance caused by LNG leakage under representative leakage conditions.Results The influence distance of LNG facilities with different accident consequences caused by different leakage apertures is obtained.Conclusion Based on the statistics of the leakage probability of the process pipelines,suggestions for the fire separation distance between the centralized control room,the duty room in the loading area,and the LNG facility in the small mobile LNG skid-mounted recycling station are provided.

关 键 词：LNG橇装回收站 防火间距 集中控制室 装车区值班室 事故后果模拟 

分 类 号：TE88[石油与天然气工程—油气储运工程]