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| 小型移动式LNG橇装回收站防火间距探讨 |
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刘盛兵1,2,刘坤1,2,唐春凌1,2,赵松1,2,孙明炬1,2,王礼翔3,谢仲海3
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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
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| 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。 |
| 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 |
| DOI：10.3969/j.issn.1007-3426.2022.06.018 |
| 分类号: |
| 基金项目: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) |
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| Discussion on fire separation distance of small mobile LNG skid-mounted recycling station |
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Liu Shengbing1,2, Liu Kun1,2, Tang Chunling1,2, Zhao Song1,2, Sun Mingju1,2, Wang Lixiang3, Xie Zhonghai3
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1. Research Institute of Safety, Environment and Technology Supervision, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;2. Sichuan Tianyu Petroleum Environmental Protection and Safety Technology Consulting Service Co., Ltd., Chengdu, Sichuan, China;3. Chengdu Natural Gas Chemical Plant General, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China
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| Abstract: |
| 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. |
| Key words: LNG skid-mounted recycling station fire separation distance centralized control room on-duty room of loading area accident consequence simulation |
