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硅酸铝棉对管道爆燃压力波抑制性能评价

, PP. 116-119

Keywords: 管道,爆燃压力波,抑制性能,硅酸铝棉,障碍物,比冲量,DN准数

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Abstract:

为了研究硅酸铝棉对管道内丙烷空气预混爆燃压力波的影响,本文通过开展丙烷空气预混火焰在无内衬、内衬硅酸铝棉、内衬实体障碍物和非变截面硅酸铝棉壁面4种管道内的传播试验,并采用压力冲量准则评价了火焰压力冲击波的危害程度,考察了硅酸铝棉对减轻爆燃压力冲击波危害的作用。结果表明硅酸铝棉能够减小管道出口压力波的比冲量和DN准数,说明硅酸铝棉对压力波的传播有抑制作用,可降低管道出口处压力波的冲击破坏作用和危害性。

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