微肋结构对储罐失压下液化气瞬态暴沸特性的影响

doi:10.11949/j.issn.0438-1157.20181137

化工学报 ›› 2018, Vol. 69 ›› Issue (S2): 512-516.DOI: 10.11949/j.issn.0438-1157.20181137

• 过程安全 • 上一篇

微肋结构对储罐失压下液化气瞬态暴沸特性的影响

任滔, 段钟弟, 丁国良

上海交通大学制冷与低温工程研究所, 上海 200240

收稿日期:2018-10-08 修回日期:2018-10-15 出版日期:2018-12-31 发布日期:2018-12-31
通讯作者: 丁国良
基金资助:
国家自然科学基金项目（51504149，51674165）；上海市优秀学术带头人计划项目（16XD1401500）。

Influences of micro-fin structure on flash boiling characteristics of liquefied gas under tank depressurization

REN Tao, DUAN Zhongdi, DING Guoliang

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2018-10-08 Revised:2018-10-15 Online:2018-12-31 Published:2018-12-31
Supported by:
supported by the National Natural Science Foundation of China (51504149, 51674165) and the Program of Shanghai Academic Research Leader (16XD1401500).

摘要/Abstract

摘要：

沸腾液体蒸气膨胀爆炸（BLEVE）是液化气储运中的一类常见灾害，其爆炸剧烈程度取决于容器失压时亚稳态液体的过热度。为避免发生液化气爆炸，提出了一种采用微肋结构来促进过热液体成核的防制思路。通过搭建可视化的实验装置，对比观测了失压条件下光滑和微肋表面上的气泡成核过程，并测量了失压后容器内的瞬态压力曲线。结果表明，微肋表面上的成核起始时间相比光滑表面提前了50 ms；在200～500 kPa泄放压力范围下，通过采用微肋结构表面，暴沸引发的压力反弹相比光滑表面降低了24.1%，液体最大过热度下降了21.7%。

Abstract:

The boiling liquid expanding vapor explosion (BLEVE) is a most common hazard in liquefied gas storage and transportation, and its explosion energy depends on the superheat degree of the metastable liquid at the loss of containment. For preventing the flash boiling of liquefied gas, this paper presents a new method by using micro-fin surface to promote nucleation in superheated liquid. A visualized experimental rig is established. The nucleation process on micro-fin surface under rapid depressurization is observed and compared to that on smooth surface; the transient pressure evolution in the container is measured. The results show that the onset of nucleation on micro-fin surface is about 50 ms earlier than that on smooth surface. The adopted micro-fin surface in the experiments reduces the pressure rebound and the maximum liquid superheat degree by up to 24.1% and 21.7% respectively among the release pressures of 200-500 kPa.

中图分类号:

TE646

任滔, 段钟弟, 丁国良. 微肋结构对储罐失压下液化气瞬态暴沸特性的影响[J]. 化工学报, 2018, 69(S2): 512-516.

REN Tao, DUAN Zhongdi, DING Guoliang. Influences of micro-fin structure on flash boiling characteristics of liquefied gas under tank depressurization[J]. CIESC Journal, 2018, 69(S2): 512-516.

参考文献

[1] 陈飞, 威尔·施密特, 杨绍军.天然气液化工艺发展的新趋势——关键技术问题与案例分析[J].化工学报, 2015, 66(S2):21-29.GHEN F, SCHMIDT W, YANG S J.Meet new needs of LNG industry:liquefaction technology selection and case study[J].CIESC Journal, 2015, 66(S2):21-29.
[2] ABBASI T, ABBASI S A.The boiling liquid expanding vapour explosion (BLEVE):mechanism, consequence assessment, management[J].Journal of Hazardous Materials, 2007, 141(3):489.
[3] TÖRÖK Z, AJTAI N, TURCU A T, et al.Comparative consequence analysis of the BLEVE phenomena in the context on land use planning; case study:the feyzin accident[J].Process Safety and Environmental Protection, 2011, 89(1):1-7.
[4] LANDUCCI G, MOLAG M, COZZANI V.Modeling the performance of coated LPG tanks engulfed in fires[J].Journal of Hazardous Materials, 2009, 172(1):447-456.
[5] MCDEVITT C A, CHAN C K, STEWARD F R, et al.Initiation step of boiling liquid expanding vapour explosions[J].Journal of Hazardous Materials, 1990, 25(1/2):169-180.
[6] SHEBEKO Y N, SHEVCHUCK A P, SMOLIN I M.BLEVE prevention using vent devices[J].Journal of Hazardous Materials, 1996, 50(2):227-238.
[7] VENART J E S, SUMATHIPALA U K, STEWARD F R, et al.Experiments on the thermos-hydraulic response of pressure liquefied gases in externally heated tanks with pressure relief[J].Process Safety Progress, 1988, 7(2):139-144.
[8] JEN C H, LIN M H.Modeling a boiling-liquid, expanding-vapor explosion phenomenon with application to relief device design for liquefied ammonia storage[J].Industrial and Engineering Chemistry Research, 1999, 38(2):479-487.
[9] SHIRVILL L C.Efficacy of water spray protection against propane and butane jet fires impinging on LPG storage tanks[J].Journal of Loss Prevention in the Process Industries, 2004, 17(2):111-118.
[10] ROBERTS T A.Effectiveness of an enhanced deluge system to protect LPG tanks and sensitivity to blocked nozzles and delayed deluge initiation[J].Journal of Loss Prevention in the Process Industries, 2004, 17(2):151-158.
[11] PALTRINIERI N, LANDUCCI G, MOLAG M, et al.Risk reduction in road and rail LPG transportation by passive fire protection[J].Journal of Hazardous Materials, 2009, 167(1/2/3):332.
[12] LANDUCCI G, MOLAG M, REINDERS J, et al.Experimental and analytical investigation of thermal coating effectiveness for 3m³ LPG tanks engulfed by fire[J].Journal of Hazardous Materials, 2009, 161(2/3):1182-1192.
[13] REID R C.Possible mechanism for pressurized-liquid tank explosions or BLEVE's[J].Science, 1979, 203(4386):1263.
[14] BUIVID M G, SUSSMAN M V.Superheated liquids containing suspended particles[J].Nature, 1978, 275(21):203-205
[15] YU C K, LU D C.Pool boiling heat transfer on horizontal rectangular fin array in saturated FC-72[J].International Journal of Heat and Mass Transfer, 2007, 50(17):3624-3637.
[16] KIM S H, LEE G C, KANG J Y, et al.Boiling heat transfer and critical heat flux evaluation of the pool boiling on micro structured surface[J].International Journal of Heat and Mass Transfer, 2015, 91:1140-1147.
[17] KIM Y H, LEE K J, HAN D.Pool boiling enhancement with surface treatments[J].Heat and Mass Transfer, 2008, 45(1):55.

微肋结构对储罐失压下液化气瞬态暴沸特性的影响

Influences of micro-fin structure on flash boiling characteristics of liquefied gas under tank depressurization

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 8

编辑推荐

Metrics

本文评价

[1]	张镨, 周理, 郭开华, 陈正华, 王伟杰. 基于多点耦合的低温多股流换热过程动态模拟[J]. 化工学报, 2018, 69(S2): 167-173.
[2]	任其龙, 薛文峰, 张铭, 吴剑骅, 潘腾云, 金军魁, 闻光东, 苏宝根. 旋转弧等离子体转化油脂制合成气[J]. 化工学报, 2015, 66(12): 4966-4971.
[3]	王辉, 陈福胜, 宋琦, 任彬, 王勤, 陈光明. 新型精馏型自复叠小型天然气液化系统性能优化[J]. 化工学报, 2015, 66(S2): 231-237.
[4]	任彬, 陈福胜, 王辉, 宋琦, 王勤, 徐象国, 陈光明. 精馏型自复叠小型天然气液化系统配比优化[J]. 化工学报, 2014, 65(z2): 169-174.
[5]	李焱, 李玉星, 胡其会, 王武昌, 谢彬, 喻西崇. 一种新型板翅式换热器气液分配器分配特性的敏感性分析[J]. 化工学报, 2013, 64(6): 2007-2014.
[6]	朱建鲁, 李玉星, 王武昌, 刘永浩, 谢彬, 喻西崇. 晃荡条件下氮膨胀液化过程冷箱运行可靠性[J]. 化工学报, 2013, 64(4): 1183-1190.
[7]	何金波, 房建威, 闻光东, 马杰, 苏宝根, 邢华斌, 任其龙. 热等离子体重整二氧化碳和甲烷制合成气的研究进展[J]. 化工学报, 2013, 64(3): 779-787.
[8]	朱建鲁, 李玉星, 王武昌, 多志丽, 谢彬, 喻西崇. LNG接收终端工艺流程动态仿真[J]. 化工学报, 2013, 64(3): 1000-1007.