低压含KCl细水雾抑制船舶油池火特性试验研究

doi:10.16265/j.cnki.issn1003-3033.2019.04.010

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (4): 58-63.doi: 10.16265/j.cnki.issn1003-3033.2019.04.010

低压含KCl细水雾抑制船舶油池火特性试验研究

苏石川教授, 郭晨宇, 王亮, 崔海滨, 曹佳斌

江苏科技大学能源与动力学院,江苏镇江 212003

收稿日期:2019-01-21 修回日期:2019-03-20 出版日期:2019-04-28 发布日期:2020-11-04
作者简介:苏石川 (1963—),男,江苏淮安人,博士,教授,主要从事船舶机舱火灾、动力机械内部流动、船舶动力总成性能优化等方面的研究。E-mail: jstussc1@163.com。
基金资助:
国家自然科学基金资助(21406095)。

Experimental research on low-pressure water mist in suppressing ship oil pool fire effectiveness with KCl

SU Shichuan, GUO Chenyu, WANG Liang, CUI Haibin, CAO Jiabin

College of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China

Received:2019-01-21 Revised:2019-03-20 Online:2019-04-28 Published:2020-11-04

摘要/Abstract

摘要： 为探究低压含氯化钾(KCl)细水雾抑制庚烷油池火的有效性,基于1.5 m×1.5 m×1.0 m封闭舱室平台,开展不同KCl质量分数(5％、10％、15％、20％)的低压细水雾(0.2～0.6 MPa)抑制庚烷油池火焰特性试验,分析不同KCl质量分数、不同喷射压力下庚烷质量损失速率及火焰高度的变化。结果表明:低压纯水细水雾可强化油池火焰燃烧,含KCl添加剂低压细水雾能有效抑制油料火的发展,其中0.6 MPa压力下20％质量分数KCl溶液灭火效果最好。KCl溶液质量分数的增加,可降低庚烷平均质量损失速率,使火焰高度整体下降;喷嘴压力的升高,同样可降低燃油平均质量损失速率,缩短火焰波动时间,使燃烧提前进入衰减阶段。

关键词: 船舶火灾, 低压细水雾, 氯化钾(KCl)添加剂, 油池火, 抑制效果

Abstract: In order to investigate the effectiveness of low-pressure water mist with KCl in suppressing heptane oil pool fire, based on a 1.5 m×1.5 m×1.0 m enclosed cabin platform, experimental studies were conducted on the flame characteristics of heptane oil pool fire suppressed by low-pressure water mist (0.2-0.6 MPa) with different KCl concentrations (5%, 10%, 15%, 20%).The changes of heptane mass loss rates and flame heights with different KCl mass fractions and at different injection pressure were analyzed. The results show that although the low-pressure pure water mist can strengthen the flame combustion of oil pool, yet the low-pressure water mist with KCl additive can effectively restrain the development of oil fire, among which the water mist with 20% concentration of KCl solution has the best extinguishing effect under 0.6 MPa pressure. The increase of KCl mass fraction can reduce the average mass loss rate of heptane and lower the overall flame height; similarly, the growth of nozzle pressure can also reduce the fuel oil's average mass loss rate, shorten the fluctuation time of flames, thus advancing combustion into the attenuation stage.

Key words: ship fire, low pressure water mist, KCl additive, oil pool fire, suppression effect

中图分类号:

X932

苏石川, 郭晨宇, 王亮, 崔海滨, 曹佳斌. 低压含KCl细水雾抑制船舶油池火特性试验研究[J]. 中国安全科学学报, 2019, 29(4): 58-63.

SU Shichuan, GUO Chenyu, WANG Liang, CUI Haibin, CAO Jiabin. Experimental research on low-pressure water mist in suppressing ship oil pool fire effectiveness with KCl[J]. China Safety Science Journal, 2019, 29(4): 58-63.

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低压含KCl细水雾抑制船舶油池火特性试验研究

Experimental research on low-pressure water mist in suppressing ship oil pool fire effectiveness with KCl

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