典型固体抑爆剂对乙炔-空气的抑爆特性

夏煜 程扬帆 胡芳芳 王瑞 朱守军 沈兆武

夏煜, 程扬帆, 胡芳芳, 王瑞, 朱守军, 沈兆武. 典型固体抑爆剂对乙炔-空气的抑爆特性[J]. 高压物理学报, 2022, 36(6): 065201. doi: 10.11858/gywlxb.20220580
引用本文: 夏煜, 程扬帆, 胡芳芳, 王瑞, 朱守军, 沈兆武. 典型固体抑爆剂对乙炔-空气的抑爆特性[J]. 高压物理学报, 2022, 36(6): 065201. doi: 10.11858/gywlxb.20220580
XIA Yu, CHENG Yangfan, HU Fangfang, WANG Rui, ZHU Shoujun, SHEN Zhaowu. Inhibition Characteristics of Typical Solid Explosion Suppressors on Acetylene-Air Explosion[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065201. doi: 10.11858/gywlxb.20220580
Citation: XIA Yu, CHENG Yangfan, HU Fangfang, WANG Rui, ZHU Shoujun, SHEN Zhaowu. Inhibition Characteristics of Typical Solid Explosion Suppressors on Acetylene-Air Explosion[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065201. doi: 10.11858/gywlxb.20220580

典型固体抑爆剂对乙炔-空气的抑爆特性

doi: 10.11858/gywlxb.20220580
基金项目: 国家自然科学基金(11972046);安徽省自然科学基金(2108085Y02);安徽省高校自然科学基金重大项目(KJ2020ZD30);安徽理工大学研究生创新基金(2021CX2026)
详细信息
    作者简介:

    夏 煜(1998- ),男,硕士研究生,主要从事可燃粉尘的防爆和抑爆研究. E-mail:1433515089@qq.com

    通讯作者:

    程扬帆(1987- ),男,博士,副教授,博士生导师,主要从事爆炸力学和爆炸安全研究. E-mail:cyf518@mail.ustc.edu.cn

  • 中图分类号: O521.9; O389

Inhibition Characteristics of Typical Solid Explosion Suppressors on Acetylene-Air Explosion

  • 摘要: 为了揭示固体抑爆剂对乙炔-空气预混气体爆炸的抑爆效果,采用20 L球形爆炸测试系统,研究了典型固体抑爆剂SiO2、Al(OH)3和NaHCO3对乙炔-空气预混气体爆炸特性的影响。结果表明:低粉体浓度(300 g/m3以下)的SiO2对乙炔-空气的爆炸威力具有促进作用,而高粉体浓度的SiO2则具有显著的抑制作用;SiO2、Al(OH)3和NaHCO3 3种固体抑爆剂对乙炔-空气的抑爆效果依次增强;SiO2和Al(OH)3分别通过颗粒自身和分解吸热(生成Al2O3和H2O)来降低乙炔-空气的爆炸威力,而NaHCO3分解会产生Na2CO3、H2O和CO2,兼具气、固、液三相的抑爆特点,因而对乙炔-空气预混气体的抑爆效果最好。

     

  • 图  20 L球形爆炸测试系统示意图

    Figure  1.  Schematic diagram of the 20 L spherical explosion test system

    图  固体抑爆剂粉体的粒径分布

    Figure  2.  Particle size distribution of solid explosion suppressors

    图  乙炔-空气爆炸压力时程曲线($\varphi$=1)

    Figure  3.  Explosion pressure-time curve of C2H2-air ($\varphi$=1)

    图  不同SiO2粉体浓度下乙炔-空气爆炸压力时程曲线

    Figure  4.  Explosion pressure-time curves of C2H2-air at different concentrations of SiO2

    图  SiO2对乙炔-空气爆炸特性的影响

    Figure  5.  Effect of SiO2 on explosion characteristics of C2H2-air

    图  不同Al(OH)3粉体浓度下乙炔-空气爆炸压力时程曲线

    Figure  6.  Explosion pressure-time curves of C2H2-air at different concentrations of Al(OH)3

    图  Al(OH)3对乙炔-空气爆炸特性的影响

    Figure  7.  Effect of Al(OH)3 on explosion characteristics of C2H2-air

    图  不同NaHCO3粉体浓度下乙炔-空气爆炸压力时程曲线

    Figure  8.  Explosion pressure-time curves of C2H2-air at different concentrations of NaHCO3

    图  NaHCO3对乙炔-气体爆炸特性的影响

    Figure  9.  Effect of NaHCO3 on explosion characteristics C2H2-air

    图  10  爆炸压力敏感性分析

    Figure  10.  Sensitivity analysis of explosion pressure

    图  11  3种固体抑爆剂的抑爆特性对比

    Figure  11.  Explosion inhibition characteristics of three solid explosion suppressors

    表  1  影响爆炸压力的主要反应

    Table  1.   Main reactions affecting explosion pressure

    No.Reaction No.Reaction
    R1H+O2↔O+OH R158C2H2+O↔HCCO+H
    R39HCO+M↔CO+H+MR161C2H2+OH↔C2H+H2O
    R41HCO+O2↔CO+HO2R166C2H2+C2H↔C4H2+H
    R141C2H+O2↔HCO+COR194C2H3+O2↔CH2CHO+O
    R155C2H3(+M) ↔C2H2+H(+M)R195C2H3+O2↔HCO+CH2O
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出版历程
  • 收稿日期:  2022-05-09
  • 修回日期:  2022-05-28
  • 网络出版日期:  2022-10-11
  • 刊出日期:  2022-12-05

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