[1]刘隆,孟波,王雷,等.道化学安全评价法在LNG储罐安全评价中的应用研究[J].中国安全生产科学技术,2014,10(9):192-196.[doi:10.11731/j.issn.1673-193x.2014.09.033]
LIU Long,MENG Bo,WANG Lei,et al.Study on application of Dow Chemical Fire and Explosion
Index Method in safety evaluation of LNG tank[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(9):192-196.[doi:10.11731/j.issn.1673-193x.2014.09.033]
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道化学安全评价法在LNG储罐安全评价中的应用研究
LIU Long,MENG Bo,WANG Lei,et al.Study on application of Dow Chemical Fire and Explosion Index Method in safety evaluation of LNG tank[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(9):192-196.[doi:10.11731/j.issn.1673-193x.2014.09.033]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 10
- 期数:
- 2014年9期
- 页码:
- 192-196
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2014-09-30
文章信息/Info
- Title:
- Study on application of Dow Chemical Fire and Explosion Index Method in safety evaluation of LNG tank
- Keywords:
- LNG Tank; DOW method; safety evaluation; dam size; wind speed
- 分类号:
- X913.4
- 文献标志码:
- A
- 摘要:
- 液化天然气（LNG）做为清洁能源近年来在我国得到广泛应用，随着LNG加气站建设规模日益扩大，发展合理的安全评价方法对LNG加气站选址与安全评估具有重要的现实意义。为此，首先利用计算流体力学（CFD）方法研究了围堰尺寸与风速对LNG泄漏扩散的影响规律，在此基础上对道化学评价方法进行改进，并利用改进后的模型对立式LNG储罐进行了分析。研究结果表明：储罐泄漏扩散的范围随着围堰尺寸的增大而增大，随着风速的增大而减小，这种变化规律在进行评价时应充分予以考虑；通过规定围堰尺寸补偿系数Ck与风速补偿系数Cc，改进道化学评价方法，使其在LNG储罐安全评级的应用中更准确灵活。
- Abstract:
- Liquified natural gas (LNG) has been widely used in China as clean energy. With the expanding in construction scale of LNG filling stations, the importance of scientific safety evaluation method has become much more obvious. The influence laws by size of the dam and wind speed on release and diffusion of LNG tank were studied by CFD method, and the DOW method was improved based on the simulated results, then the improved model was applied to analysis the vertical LNG tank. It showed that the range of diffusion area increases with the increasing in size of the dam, while decreased with the increasing of wind speed, which should be considered in the evaluation process. The revised DOW method by defining dam size compensation coefficient Ck and wind speed compensation coefficient Cc is more applicable and accurate in the safety evaluation of LNG tank.
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