The suppression of forest fires has been one of the important research directions in the field of fire safety, fine water mist because of the advantages of easy access to materials, low price and no pollution to become one of the commonly used inhibitors to suppress forest fires, so previous research done for fine water mist suppression of forest fires, mostly for the macro level of fire suppression effectiveness and methodological research, for fine water mist and forest fire interaction mechanism research is less, this paper for the convenience of research, the In this paper, to facilitate the study of red pine wood as the research object, after high temperature pyrolysis analysis of pyrolysis gas components, the construction of fine water mist suppression of red pine wood pyrolysis gas flame Bunsen burner experimental system, study the effect of different additions of fine water mist on the laminar flame speed (S_L) of red pine wood pyrolysis gas flame, and the use of chemkin software to study the mechanism of interaction between fine water mist and red pine wood pyrolysis gas flame, on the study of the interaction between fine water mist and red pine pyrolysis gas flames using chemkin software has some implications for the suppression of forest fires. In this paper, the pyrolysis gas products of red pine wood were firstly analysed by TG-DSC as well as GC/MS and found to consist mainly of H₂, CO₂, C₂H₄, CO, CH₄, C₂H₆, C₃H₆ and C₃H₈, accounting for more than 98% of the gases. The Bunsen burner experimental system constructed for the suppression of red pine pyrolysis gas flames by fine water mist revealed that the flame height gradually increased with increasing fine water mist addition and the flame cone angle gradually decreased, indicating that the flame speed was gradually decreasing with increasing fine water mist addition. It was observed that the flame height did not change significantly at low equivalents as the amount of extinguishing agent added increased, indicating that the fine water mist had a weak pro-ignition effect on the red pine pyrolysis gas/air system. The influence of the gas content on the flame promotion effect of the fine water mist was investigated by chemkin software. It was found that the ratio of CO/H₂ in the pyrolysis gas composition of red pine wood will determine the strength of the combustion promoting effect of the fine water mist in the interaction with the pyrolysis gas flame, the higher the ratio of CO/H₂, the stronger the combustion promoting effect of the fine water mist in the interaction with the pyrolysis gas flame, and conversely the lower the ratio, the weaker the combustion promoting effect of the fine water mist in the interaction with the pyrolysis gas flame.

扑灭森林火灾一直是消防安全领域的重要研究方向之一，细细水雾因材料易得、价格低廉、无污染等优点成为扑灭森林火灾常用的抑制剂之一。 , 所以以往对细水雾抑制森林火灾的研究, 大多是宏观层面的灭火效果和方法学研究, 对于细细细水雾与森林火灾相互作用机理的研究较少, 本文为研究方便, 在本文以促进红松材研究为研究对象，经过高温热解裂解气成分分析，构建了红松材热解气火焰本生灯燃烧器的细水雾抑制实验系统，研究不同添加细水雾对层流火焰速度的影响（S_l ) 赤松木裂解气火焰，并利用chemkin软件研究细水雾与赤松裂解气火焰相互作用的机理，研究细水雾与赤松裂解气火焰的相互作用使用 chemkin 软件对扑灭森林火灾具有一定的意义。本文首先用TG-DSC和GC/MS对红松木裂解气产物进行分析，发现其主要成分为H ₂、CO ₂、C ₂ H ₄、CO、CH ₄、C ₂ H ₆、C ₃ H ₆和 C ₃ H ₈，占气体的98%以上。构建的细水雾抑制红松裂解气火焰的本生灯实验系统表明，随着细水雾添加量的增加，火焰高度逐渐增加，火焰锥角逐渐减小，表明火焰速度随着细水雾的增加而逐渐减小。细水雾添加。观察到，随着灭火剂添加量的增加，在低当量下火焰高度没有明显变化，表明细水雾对红松热解气/空气系统的促燃作用较弱。采用chemkin软件研究了气体含量对细水雾助燃效果的影响。发现CO/H _2的比值红松木裂解气成分中的细水雾在与裂解气火焰的相互作用中的助燃效果的强弱，CO/H ₂的比值越高，其助燃效果越强。细水雾在与裂解气火焰的相互作用中，反之，该比值越低，细水雾在与裂解气火焰的相互作用中的助燃作用越弱。