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[1]马煜衡,时事成,陆春义,等.外部时变热流对液化气体储罐的热响应规律[J].南京工业大学学报(自然科学版),2019,41(05):570-576.[doi:10.3969/j.issn.1671-7627.2019.05.006]
 MA Yuheng,SHI Shicheng,LU Chunyi,et al.Thermal effect of time-dependent external heat on liquefied gas storage tank[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(05):570-576.[doi:10.3969/j.issn.1671-7627.2019.05.006]
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外部时变热流对液化气体储罐的热响应规律()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
41
期数:
2019年05期
页码:
570-576
栏目:
出版日期:
2019-10-22

文章信息/Info

Title:
Thermal effect of time-dependent external heat on liquefied gas storage tank
文章编号:
1671-7627(2019)05-0570-07
作者:
马煜衡时事成陆春义王苏盼王志荣蒋军成
南京工业大学 安全科学与工程学院,江苏 南京 211800
Author(s):
MA Yuheng SHI Shicheng LU Chunyi WANG Supan WANG Zhirong JIANG Juncheng
College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211800, China
关键词:
液化气体 沸腾液体膨胀蒸气爆炸 辐射热作用 压力反弹 温度分层
Keywords:
liquefied gas boiling liquid expanding vapor explosion radiant heat flux pressure rebound temperature stratification
分类号:
X933
DOI:
10.3969/j.issn.1671-7627.2019.05.006
文献标志码:
A
摘要:
火灾高温环境极易诱发临近液化气体储罐发生沸腾液体膨胀蒸气爆炸(BLEVE)事故。为研究火焰热辐射作用对液化气储罐及内部介质的热作用规律,本文建立以辐射加热源模拟外部火焰作用,过热水为介质的小型储罐BLEVE实验模拟装置。实验结果表明:储罐接收外部热作用时间越长,其泄爆产生的压力反弹越剧烈; 外部热作用强度的增大,提升了储罐内部压力响应速率; 储罐气相空间的加热作用可以提高内部温度分层度,气相加热面积越大,分层程度越大,从而泄爆后的压力反弹越低。
Abstract:
High-temperature environment outside the liquefied-pressure gases(LPG)tank can cause the boiling liquid expanding vapor explosion(BLEVE)accident of tank. In order to study the thermal effect on liquefied gas storage tank and internal medium, a small experimental device with superheated water as medium was established. The radiant heating source was used to simulate an external fire for the BLEVE process. Results showed that the longer the tank was subjected to external heat, the more intense the pressure rebound due to the explosion. The higher intensity of external heat held, the faster the internal pressure response of the tank. The heating of gas phase space could increase the internal temperature stratification. The increment of the gas phase area would augment the stratification, and reduce the pressure rebound of the liqueed gas inside the vessel if it failed.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-06-30
基金项目:“十三五”国家重点研发计划(2016YFC0800100)
作者简介:马煜衡(1993—),男,E-mail:1161201738@qq.com; 王苏盼(联系人),副教授,E-mail:wangsp@njtech.edu.cn.
引用本文:马煜衡,时事成,陆春义,等.外部时变热流对液化气体储罐的热响应规律[J].南京工业大学学报(自然科学版),2019,41(5):570-576..
更新日期/Last Update: 2019-09-30