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对H2,CO,CH4多元体系支链爆炸的爆炸特性与形态进行了系统的研究.探索了浓度爆炸极限、爆炸形态与波形及其影响因素;测定了爆炸危险度、火焰蔓延极限、最小点火能等爆炸特性参数;根据爆炸形态与波形的不同,提出了爆炸形态与波形的新区划理念,在爆炸极限内,可进一步区划为上下限冷焰区、上下限爆燃区、爆轰区、下爆燃向爆轰转化区等6个爆炸形态区,并探讨了不同爆炸形态压力波的发展机制,对进一步研究相关的多元支链爆炸体系,促进多元支链爆炸理论的发展,具有一定的理论价值.实验测得的爆炸危险度、火焰蔓延极限、最小点火能等特性参数,与引进‘关键组分’的概念,对预防混合气体支链爆炸事故的发生,指导防爆电气设备与阻火器设计,修订相关工业的安全指标,指导支链燃烧与支链爆炸的实践,具有积极的现实意义.
Explosion characteristics and morphologies of branched explosions in H2, CO and CH4 multicomponent systems were systematically studied. Explosion limits, explosive morphologies and waveforms were explored and their influencing factors were explored. The explosion risk, flame spread limit, minimum ignition energy According to the difference between the explosion shape and the waveform, a new division concept of explosion morphology and waveform is proposed. Within the explosion limit, it can be further divided into the upper and lower limit cold flame zone, the upper and lower limit detonation zone, the detonation zone, and the deflagration zone And explored the development mechanism of pressure wave with different explosion modes. It is of theoretical value to further study the related multi-branch explosive system and promote the development of multi-branch explosion theory. Experimental explosion hazard, flame spread limit, the minimum ignition energy and other characteristics of the parameters, and the introduction of the concept of “key components” to prevent the occurrence of mixed gas branch explosion, to guide the design of explosion-proof electrical equipment and flame arrester, revision Relevant industrial safety indicators to guide the practice of branching combustion and branch explosion, has a positive and practical significance.