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[1]徐大用,蒋会春,沈赣苏,等.基于FLACS的LNG船舶泄漏爆炸过程数值模拟研究*[J].中国安全生产科学技术,2021,17(7):48-53.[doi:10.11731/j.issn.1673-193x.2021.07.008]
　XU Dayong,JIANG Huichun,SHEN Gansu,et al.Numerical simulation on leakage and explosion of LNG ship based on FLACS[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(7):48-53.[doi:10.11731/j.issn.1673-193x.2021.07.008]
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基于FLACS的LNG船舶泄漏爆炸过程数值模拟研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年7期
页码:
48-53
栏目:
职业安全卫生管理与技术
出版日期:
2021-07-31

文章信息/Info

Title:
Numerical simulation on leakage and explosion of LNG ship based on FLACS
文章编号:
1673-193X(2021)-07-0048-06
作者:
徐大用; 蒋会春; 沈赣苏; 习树峰; 张礼敬; 潘旭海
(1.南京工业大学 安全科学与工程学院，江苏 南京 211800；
2.深圳市城市公共安全技术研究院有限公司，广东 深圳 518000)
Author(s):
XU Dayong;  JIANG Huichun;  SHEN Gansu;  XI Shufeng;  ZHANG Lijing;  PAN Xuhai
(1.College of Safety Science and Engineering,Nanjing Tech University,Nanjing Jiangsu 211800,China;
2.Shenzhen Urban Public Safety and Technology Institute,Shenzhen Guangdong 518000,China)
关键词:
LNG船舶; 气云爆炸; 爆炸火球; 爆炸超压
Keywords:
LNG ship;  gas cloud explosion;  explosion fireball;  explosion overpressure
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2021.07.008
文献标志码:
A
摘要:
为研究大尺寸、全场景下LNG船舶卸货作业过程中的泄漏爆炸风险，构建某LNG接收站及其周边20.5 km2的区域场景模型，采用FLACS软件数值模拟LNG泄漏扩散、气云爆炸的演化过程。结果表明：LNG从卸料臂处以满输速率持续泄漏5 min，最大液池面积17 047 m2，最大汽化速率350 kg/m3，遇点火源发生气云爆炸，爆炸持续时间12 s，产生最高爆炸火球340 m和最大爆炸超压0.25 MPa，形成半径380 m轻伤区、150 m重伤区和60 m死亡区。
Abstract:
In order to study the risk of leakage and explosion during the unloading operation of LNG ship under large size and full scene,a 20.5 km2 regional scene model was constructed,which included an LNG receiver station and adjacent buildings,and the FLACS software was applied to simulate the leakage,diffusion and gas cloud explosion processes of LNG.The results showed that when LNG continuously leaked for 5 minutes with full transportation rate from the unloading arm,the maximum liquid pool area was 17 047 m2,the maximum evaporation rate was 350 kg/m3.When the gas cloud was ignited,the explosion occurred and lasted for 12 seconds.The explosion produced the highest fireball of 340 m and the maximum overpressure of 2.5 bar,and formed the slightly injured area (radius of 340 m),seriously injured area (radius of 150 m) and death area (radius of 60 m).

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备注/Memo

备注/Memo:
收稿日期： 2020-10-13
* 基金项目： 国家重点研发计划项目（2019YFC0810701）
作者简介： 徐大用，硕士，工程师，主要研究方向为城市灾害事故仿真模拟。
通信作者： 潘旭海，博士，教授，主要研究方向为危险化学品安全与控制技术、化工工艺安全监测监控技术、防灭火及阻燃材料研发及新能源（氢能、锂离子电池）领域风险评估和本质安全化设计开发。
更新日期/Last Update: 2021-08-05