复合改性干水抑制H2/TiH2混合爆炸效果研究

doi:10.16265/j.cnki.issn1003-3033.2026.09.0592

中国安全科学学报 ›› 2026, Vol. 36 ›› Issue (9): 17-25.doi: 10.16265/j.cnki.issn1003-3033.2026.09.0592

复合改性干水抑制H₂/TiH₂混合爆炸效果研究

裴蓓¹^,²^,³(), 吕航¹^,², 周磊³, 路长¹^,², 纪文涛¹^,², 阚强⁴

¹ 河南理工大学煤炭安全生产与清洁高效利用省部共建协同创新中心, 河南焦作 454003
² 河南理工大学安全科学与工程学院, 河南焦作 454003
³ 天津大学机械工程学院, 天津 300072
⁴ 中国建筑设计研究院有限公司, 北京 100044

收稿日期:2026-05-11 修回日期:2026-07-20 出版日期:2026-10-20
作者简介:
裴蓓 (1982—),女,河南安阳人,工学博士,教授,主要从事热动力灾害机制、灭火抑爆功能材料、消防应急救援方面的教学与研究。E-mail:smart128@126.com。
周磊教授;
路长教授
纪文涛教授
阚强正高级工程师
基金资助:
国家自然科学基金资助(52474216)

Study on suppression effects of H₂/TiH₂ mixed explosion with composite modified dry water

Pei Bei¹^,²^,³(), Lyu Hang¹^,², Zhou Lei³, Lu Chang¹^,², Ji Wentao¹^,², Kan Qiang⁴

¹ Collaborative Innovation Center for Safe Production and Clean and Efficient Utilization of Coal, Henan Polytechnic University, Jiaozuo Henan 454003, China
² School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454003, China
³ School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
⁴ China Architectural Design & Research Institute Co., Ltd., Beijing 100044, China

Received:2026-05-11 Revised:2026-07-20 Published:2026-10-20

摘要/Abstract

摘要：

金属氢化物固态储氢具有高能量密度优势,但生产过程中易形成金属氢化物粉尘/H₂气粉两相混合体系,爆炸风险极高。为高效抑制金属氢化物粉尘/H₂气粉两相混合物爆炸,基于惰性稀释-物理降温-化学阻断的思路,提出一种新型全氟己酮(C₆F₁₂O)与碳酸钾(K₂CO₃)复合改性干水(PC-PMDW),采用密闭爆炸管道系统,对比研究质量分数为40%~100%的PC-PMDW与单一K₂CO₃改性干水(PC-DW)的抑爆性能。结果表明:PC-PMDW抑爆效果显著优于PC-DW,质量分数为100%时,爆炸压力降幅达70.27%,平均火焰传播速度降幅达91.08%,并且火焰已无法传播至管道末端。结合爆炸产物微观结构和产物成分测试,分析其抑制作用主要为C₆F₁₂O和水蒸发吸热、K₂CO₃热解释放CO₂稀释可燃气体、活性钾化合物与含氟自由基捕获H、O、OH等关键自由基以及包覆隔氧的协同效应,从而削弱了热反馈并中断爆炸链式反应。

关键词: H₂/TiH₂, 抑爆效果, 全氟己酮(C₆F₁₂O)与碳酸钾(K₂CO₃)复合改性干水(PC-PMDW)), 爆炸压力, 火焰传播

Abstract:

Metal hydride-based solid-state hydrogen storage has the advantage of high energy density. However, metal hydride dust/H₂ gas-powder two-phase mixtures are easily formed during production. This leads to an extremely high explosion risk. To efficiently suppress suppression of metal hydride dust/H₂ gas-powder two-phase mixture, a novel C₆F₁₂O and K₂CO₃ composite modified dry water, denoted as PC-PMDW, This material was developed based on inert dilution, physical cooling, and chemical chain inhibition. A closed explosion pipeline system was used. The explosion-suppression performance of PC-PMDW at mass fractions of 40%-100% was compared with that of single K₂CO₃-modified dry water (PC-DW). The results show that the explosion-suppression performance of PC-PMDW is significantly better than that of PC-DW. At a mass fraction of 100%, the explosion pressure is reduced by 70.27%. The average flame propagation velocity is reduced by 91.08%, and the flame can no longer propagate to the end of the pipeline. Based on test of the microstructure and composition of the explosion products, the suppression effect is mainly attributed to synergistic effects. These effects include heat absorption evaporation of C₆F₁₂O and water, dilution of combustible gases by CO₂ released from K₂CO₃,thermal decomposition, capture of key radicals such as H, O, and OH by active potassium compounds and fluorine-containing radicals, and oxygen isolation through surface coating, thereby weakening thermal feedback and interrupting the explosion chain reaction.

Key words: H₂/TiH₂ mixed explosion, perfluorohexanone (C₆F₁₂O) and potassium carbonate (K₂CO₃) composite modified dry water (PC-PMDW), explosion suppression performance, flame propagation, explosion suppression mechanism

中图分类号:

X932爆炸安全与防火、防爆

裴蓓, 吕航, 周磊, 路长, 纪文涛, 阚强. 复合改性干水抑制H₂/TiH₂混合爆炸效果研究[J]. 中国安全科学学报, 2026, 36(9): 17-25.

Pei Bei, Lyu Hang, Zhou Lei, Lu Chang, Ji Wentao, Kan Qiang. Study on suppression effects of H₂/TiH₂ mixed explosion with composite modified dry water[J]. China Safety Science Journal, 2026, 36(9): 17-25.

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复合改性干水抑制H₂/TiH₂混合爆炸效果研究

Study on suppression effects of H₂/TiH₂ mixed explosion with composite modified dry water

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编号	工况条件	质量分数/%	编号	工况条件	质量分数/%
1	无添加	0	2	PC-DW	40
3	PC-DW	60	4	PC-DW	80
5	PC-DW	100	6	PC-PMDW	40
7	PC-PMDW	60	8	PC-PMDW	80
9	PC-PMDW	100

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