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Mine Engineering 2024
狭长受限空间内甲烷爆炸的认识研究
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Abstract:
这篇综述考察了狭长受限空间内甲烷爆炸影响因素的现有知识。重点关注了各种障碍物、湍流、不同点火位置、初始点火能量对甲烷爆炸的影响。研究发现障碍物可能改变火焰传播路径和爆炸过程的动力学行为。其次，湍流结构的变化可能导致火焰传播速度、火焰形态和爆炸强度的显著变化。此外，初始点火能量作为另一个关注点，研究表明它对管内甲烷爆炸过程的发展和爆炸特性有着重要影响，其大小直接影响着爆炸的启动和发展过程。本文对文献中发现的各种调查进行了分析，旨在了解甲烷与空气混合引发的爆炸。
This review examines the current knowledge of the factors influencing methane explosions in narrow confined spaces. The effects of various obstacles, turbulence, different ignition positions, and initial ignition energy on methane explosions were focused on. It was found that obstacles may alter the flame propagation path and the kinetic behaviour of the explosion process. Secondly, changes in turbulence structure may lead to significant changes in flame propagation speed, flame morphology, and explosion intensity. In addition, the initial ignition energy, as another concern, has been shown to have a significant influence on the development and explosion characteristics of the methane explosion process in the tube, and its magnitude directly affects the initiation and development process of the explosion. In this paper, various investigations found in the literature have been analysed with the aim of understanding explosions initiated by methane-air mixing.
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