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[1]罗振敏,孙亚平,刘璐,等.氢气影响氨气爆炸动力学研究*[J].中国安全生产科学技术,2025,21(11):58-67.[doi:10.11731/j.issn.1673-193x.2025.11.007]
　LUO Zhenmin,SUN Yaping,LIU Lu,et al.Study on the influence of hydrogen on the explosion kinetics of ammonia[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2025,21(11):58-67.[doi:10.11731/j.issn.1673-193x.2025.11.007]
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氢气影响氨气爆炸动力学研究*

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
21
期数:
2025年11期
页码:
58-67
栏目:
职业安全卫生管理与技术
出版日期:
2025-11-30

文章信息/Info

Title:
Study on the influence of hydrogen on the explosion kinetics of ammonia
文章编号:
1673-193X(2025)-11-0058-10
作者:
罗振敏; 孙亚平; 刘璐; 王涛; 苏彬; 李泳; 宋方智
(1.西安科技大学 安全科学与工程学院，陕西 西安 710054；
2.西安核设备有限公司，陕西 西安 710021；
3.鄂尔多斯市应急管理局，内蒙古 鄂尔多斯 017000)
Author(s):
LUO Zhenmin;  SUN Yaping;  LIU Lu;  WANG Tao;  SU Bin;  LI Yong;  SONG Fangzhi
(1.College of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China;
2.Xi’an Nuclear Equipment Co.,Ltd,Xi’an Shaanxi 710021,China;
3.Ordos Emergency Management Bureau,Ordos Inner Mongolia 017000,China)
关键词:
气体爆炸; 掺氢比; 氢氨燃烧; 自由基; 动力学分析
Keywords:
gas explosion;  hydrogen blending ratio;  hydrogen-ammonia combustion;  free radical;  kinetic analysis
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2025.11.007
文献标志码:
A
摘要:
为研究氨气爆炸压力特性和化学反应动力学机理，通过20 L球形爆炸装置和动力学分析，分析当量比为1时，不同掺氢比下氢氨混合气体的最大爆炸压力、最大爆炸压力上升速率、爆炸指数和爆炸时间。在此基础上，通过Chemkin化学动力学软件模拟，研究温度、关键自由基（·H、·O、·OH和·NH2）浓度变化，并对影响·H、·O、·OH自由基促进与消耗的关键基元反应速率进行分析。研究结果表明：随着掺氢比的增大，氢氨混合气体的最大爆炸压力（pmax）、最大压升速率（(dp/dt)max）和爆炸指数（KG）逐渐增加，快速燃爆时间和持续燃烧时间单调递减，氢氨混合气体的爆炸温度增加、点火延迟时间缩短，·H、·O、·OH自由基浓度明显上升，R1主导·H自由基的消耗和·OH自由基的生成，而R4主导·H自由基的生成和·OH自由基的消耗；·O自由基消耗和生成则分别受R3、R1主导。研究结果可为氢氨能源的安全高效利用提供理论参考。
Abstract:
In order to investigate the pressure characteristics and chemical reaction kinetics mechanism of ammonia explosions,the maximum explosion pressure,the maximum rate of pressure rise,the explosion index,and the explosion time of hydrogen-ammonia mixed gas under different hydrogen blending ratios at an equivalence ratio of 1 were analyzed using a 20 L spherical explosion vessel and kinetic analysis.On this basis,Chemkin chemical kinetics software was used to simulate the temperature and the concentration changes of the key free radicals (·H,·O,·OH,and ·NH2).The rates of key elementary reactions affecting the promotion and consumption of ·H,·O,and ·OH radicals were analyzed.The results indicate that as the hydrogen blending ratio increases,the maximum explosion pressure (pmax),maximum rate of pressure rise ((dp/dt)max),and explosion index (KG) of the hydrogen-ammonia mixed gas gradually increase,while the rapid explosion time and sustained combustion time decrease monotonically.The explosion temperature of the hydrogen-ammonia mixed gas increases,the ignition delay time shortens,and the concentrations of ·H,·O,and ·OH radicals increase markedly.R1 dominates the consumption of ·H radicals and the formation of ·OH radicals,while R4 dominates the formation of ·H radicals and the consumption of ·OH radicals.The consumption and formation of ·O radicals are dominated by R3 and R1,respectively.These findings provide a theoretical reference for the safe and efficient utilization of hydrogen-ammonia energy.

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备注/Memo

备注/Memo:
收稿日期： 2025-08-05
* 基金项目： 国家自然科学基金项目(52174200，52474250)
作者简介： 罗振敏，博士，教授，主要研究方向为煤火灾害防治和粉尘爆炸防控。
通信作者： 刘璐，博士研究生，主要研究方向为工业火灾与爆炸防控。
更新日期/Last Update: 2025-12-03