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运用化学反应动力学理论,采用详细的瓦斯爆炸反应机理,分析了封闭空间内水及CO2对瓦斯爆炸反应动力学特性的影响。在4种工况条件下,通过数值模拟的手段,分析对比了水及CO2对瓦斯爆炸过程中温度、压力、反应物浓度、自由基浓度以及爆炸过程中生成的部分致灾性气体浓度等变化趋势的影响,找出了水及CO2对瓦斯爆炸反应动力学特性影响的异同。结果表明:CO2在降低瓦斯爆炸的强度方面比水的效果好。
Using chemical reaction kinetics theory and detailed gas explosion reaction mechanism, the influence of water and CO2 on the kinetic characteristics of gas explosion was analyzed. Under four working conditions, the changes of temperature, pressure, reactant concentration, free radical concentration and some of the concentrations of some of the disastrous gas generated in the explosion process were analyzed and compared by means of numerical simulation through water and CO2 Trend, and find out the similarities and differences between water and CO2 on the kinetic characteristics of gas explosion reaction. The results show that CO2 is better than water in reducing the intensity of gas explosion.