复合超细干粉灭火剂灭火性能研究

doi:10.16265/j.cnki.issn1003-3033.2018.02.012

中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (2): 69-74.doi: 10.16265/j.cnki.issn1003-3033.2018.02.012

复合超细干粉灭火剂灭火性能研究

杜德旭^1,2,3, 沈晓辉^1,2,3, 冯立^1,2,3, 华敏^**1,2,3 副教授, 潘旭海^1,2,3 教授

1 南京工业大学安全科学与工程学院,江苏南京 210009;
2 南京工业大学火灾与消防研究所,江苏南京 210009;
3 江苏省危险化学品本质安全与控制技术重点实验室,江苏南京 210009

收稿日期:2017-11-20 修回日期:2018-01-07 出版日期:2018-02-28 发布日期:2020-11-17
通讯作者: ** 华敏(1981—),女,江苏泰州人,博士,副教授,灭火剂灭火机制及新型灭火剂开发研究。E-mail: minhua@njtech.edu.cn。
作者简介:杜德旭 (1991—),男,江苏徐州人,硕士研究生,主要研究方向为干粉灭火剂研发。E-mail:dexudu@163.com。
基金资助:
国家自然科学基金资助(51704171);中国博士后科学基金面上项目资助(2016M601796);江苏省博士后科研计划(1601033C);江苏省“六大人才高峰”计划(2014-XCL-010)。

Experimental study on compound superfine dry powder extinguishant

DU Dexu^1,2,3, SHEN Xiaohui^1,2,3, FENG Li^1,2,3, HUA Min^1,2,3, PAN Xuhai^1,2,3

1 College of Safety Science and Engineering, Nanjing Tech University, Nanjing Jiangsu 210009, China ;
2 Institute of Fire Science and Engineering, Nanjing Tech University, Nanjing Jiangsu 210009, China;
3 Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, Nanjing Jiangsu 210009, China

Received:2017-11-20 Revised:2018-01-07 Online:2018-02-28 Published:2020-11-17

摘要/Abstract

摘要： 为进一步提升现有干粉灭火剂灭火效能,首先以化学纯氢氧化镁为添加剂,制备复合型超细干粉灭火剂;然后分别用热重分析仪(TGA)和差示扫描量热仪(DSC)等仪器开展热分解试验;最后通过小尺寸灭火试验,对比分析各类灭火剂的灭火效能和抑制有毒有害气体的能力。结果表明:用氢氧化镁能提高复合超细干粉灭火剂在热分解过程中的分解速率峰值,降低各分解阶段的特征温度,减小灭火剂用量、缩短灭火时间、降低最小灭火浓度(MEC),有效抑制有毒有害气体的产生。

关键词: 复合超细干粉灭火剂, 氢氧化镁, 热分解, 灭火效能, 烟气浓度

Abstract: For the sake of improving the extinguishing efficiency of the dry powder, a new type of superfine dry powder was prepared with the magnesium hydroxide as additive. The thermal analysis instruments thermogravimetric analysis(TGA) and differential scanning calorimetry(DSC) were used to study the thermal decomposition processes. Through small-scale fire experiments, physical quantities of the extinguishing processes were obtained for suppressing diesel fires by different powders. The quantities were used to evaluate the extinguishing capability and the suppressing toxic gases ability of different powders. The results show that during the thermal decomposition process, magnesium hydroxide increases the peak decomposition rate of compound superfine powder and reduces the characteristic temperature in each stage, that in the fire-extinguishing process, magnesium hydroxide reduces the dosage of powder, shortens the extinguishing time, decreases the minimum fire extinguishing concentration (MEC), and effectively inhibits the production of toxic and harmful gases.

Key words: compound superfine dry powder extinguishant, magnesium hydroxide, thermal decomposition, extinguishing efficiency, flue gas concentration

中图分类号:

X932

杜德旭, 沈晓辉, 冯立, 华敏, 潘旭海. 复合超细干粉灭火剂灭火性能研究[J]. 中国安全科学学报, 2018, 28(2): 69-74.

DU Dexu, SHEN Xiaohui, FENG Li, HUA Min, PAN Xuhai. Experimental study on compound superfine dry powder extinguishant[J]. China Safety Science Journal, 2018, 28(2): 69-74.

参考文献

[1] WILLIAMS B A, FLEMING J W.Suppression mechanisms of alkali metal compounds[C].Proceeding of the Halon Options Technical Working Conference, 1999:157-169.
[2] WANIGARATHNEPC, KRAUSS R H, CHELLIAH H K, et al. Fire suppression by particulates containing metallic compounds[C]. Halon Options Technical Working Conference, 2000: 393-402.
[3] 黄鑫, 刘凌江, 周晓猛. 磷酸铵盐亚纳米粉体灭火性能实验研究[J]. 火灾科学, 2011, 20(4): 200-205.
HUANG Xin, LIU Lingjiang, ZHOU Xiaomeng. Experimental study on the fire extinguishing performance of ammonium phosphate powder [J]. Fire Science, 2011, 20(4): 200-205.
[4] HUANG Dongmei, WANG Xinquan, YANG Jian. Influence of particle size and heating rate on decomposition of BC dry chemical fire extinguishing powders[J]. Particulate Science & Technology, 2015, 33(5): 488-493.
[5] 叶明泉, 韩爱军, 李凤生. 冷气溶胶灭火剂用NaHCO₃/白炭黑复合粒子的制备[J]. 应用化学, 2004, 21(8): 810-813.
YE Mingquan, HAN Aijun, LI Fengsheng. Preparation of NaHCO₃/white carbon black composite particles for cold aerosol extinguishing agents [J]. Chinese Journal of Applied Chemistry, 2004, 21(8): 810-813
[6] 杨冬雷, 倪小敏, 况凯骞,等. 复合干粉灭火剂抑制食用油火的试验研究[J]. 中国安全科学学报, 2011, 21(3): 65-70.
YANG Donglei, NI Xiaomin, KUANG Kaiqian, et al. Experimental study on inhibiting edible oil fire by compound dry powder extinguishing agent [J]. China Safety Sciences Journal, 2011, 21(3): 65-70.
[7] SANGCHEOL Kim. Flame retardancy and smoke suppression of magnesium hydroxide filled polyethylene[J]. Journal of Polymer Science Part B Polymer Physics, 2003, 41(9):936-944.
[8] QIU Longzhen, XIE Rongcai, DING Peng, et al. Preparation and characterization of Mg(OH)₂ nanoparticles and flame-retardant property of its nanocomposites with EVA[J]. Composite Structures, 2003, 62(3): 391-395.
[9] CONG Beihua, LIAO Guangxuan. Mechanisms of suppressing cup-burner flame with water vapor[J]. Science in China Series E:Technological Sciences,2008, 51(8): 1 222-1 231.
[10] NI Xiaomin, ZHANG Shaogang, ZHAO Mei, et al. Experimental studies on the extinction of methane/air cup-burner flames with gas-solid composite particles[J]. Fire Safety Journal, 2015, 76: 1-8.
[11] 刘皓, 商靠定. K₂C₂O₄溶液抑制甲烷-空气扩散火焰试验研究[J]. 中国安全科学学报, 2016, 26(8): 46-51.
LIU Hao, SHANG Kaoding. Experimental research on suppression of methane-air diffusion flame by water mist with potassium oxalate[J]. China Safety Sciences Journal, 2016, 26(8): 46-51.

[1]	王干, 郑忠宇, 段玮嘉, 潘勇. 咪唑类离子液体热不稳定性的试验研究[J]. 中国安全科学学报, 2021, 31(4): 163-170.
[2]	李世然, 吴文倩, 陈利平, 赵小乔, 陈网桦. 无、含水过氧化苯甲酰热分解及撞击感度研究[J]. 中国安全科学学报, 2020, 30(7): 93-100.
[3]	魏晨晔, 蒋会春, 潘旭海, 黄家兴, 崔富陞, 蒋军成. 双丙胶乳生产工艺及其产物的热危险性试验研究[J]. 中国安全科学学报, 2018, 28(12): 102-108.
[4]	江佳佳, 杨建洲, 蒋军成, 潘勇, 潘旭海. 间氯过氧化苯甲酸热分解动力学及危险性[J]. 中国安全科学学报, 2017, 27(7): 110-114.
[5]	邓吉平，孙欣，陈网桦，吕家育. 过氧化二异丙苯热危险性及安全泄放研究[J]. 中国安全科学学报, 2013, 23(9): 90-.
[6]	姚淼，陈利平，堵平，彭金华. Mg(BH4)2和MgH2对RDX热分解特性的影响[J]. 中国安全科学学报, 2013, 23(1): 115-.
[7]	万伟，陈网桦，卫水爱，沈紫晨，张彩星. 偶氮二异丁腈热安全性分析与评估[J]. 中国安全科学学报, 2012, 22(8): 131-.
[8]	祝飞. 聚磷腈/氢氧化镁协同阻燃聚丙烯的研究[J]. 中国安全科学学报, 2012, 22(7): 31-.
[9]	黄艳军，谢传欣，曹居正，徐伟，张龙力. 过氧化氢异丙苯热稳定性与热安全性研究[J]. 中国安全科学学报, 2011, 21(6): 116-.
[10]	曾秀琳，陈网桦，王凤武. 硝酸异辛酯热安定性的实验研究[J]. 中国安全科学学报, 2009, 19(8): 67-.
[11]	杨玲，王勇毅. 氢氧化镁/红磷对硅橡胶/黏土纳米复合物阻燃性能的研究[J]. 中国安全科学学报, 2009, 19(11): 83-.
[12]	郑立刚，余明高，贾海林. 标准受限空间内细水雾熄灭煤油火的实验和数值模拟[J]. 中国安全科学学报, 2007, 17(1): 81-.
[13]	张志刚，钱新明. 二甲亚砜热稳定性的实验研究[J]. 中国安全科学学报, 2006, 16(9): 100-.

复合超细干粉灭火剂灭火性能研究

Experimental study on compound superfine dry powder extinguishant

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 13

编辑推荐

Metrics

本文评价