Study on explosion suppression performance of porous polypropylene

doi:10.16265/j.cnki.issn1003-3033.2021.08.013

Abstract

Abstract: In order to analyze suppression effect of porous materials on gas explosion pressure in pipelines, a self-built gas explosion test platform was used to investigate influencing mechanism of inner diameter, filling position, and filling length of porous polypropylene composite material on explosion pressure. The results show that compared with explosion of empty pipelines, maximum explosion pressure and maximum pressure rise rate are significantly decreased by filling such porous materials. When the material's inner diameter is 0 mm, namely it is solid, and it is put closest to fire source with a filling length of 2 m, it will show the optimal suppression effect, with the maximum explosion pressure value at the pipeline end being attenuated by 69.64%, and maximum rise rate reduced by 58.31%. Changes in inner diameter, filling position and filling length and other factors will all have a significant impact on explosion suppression performance of these materials.

Key words: porous polypropylene, composite, explosion suppression performance, gas explosion, maximum explosion pressure

CLC Number:

X932

YUAN Bihe, ZHANG Yuduo, YUN Yalong, HUANG Chuyuan, CHEN Xianfeng, CHEN Gongqing. Study on explosion suppression performance of porous polypropylene[J]. China Safety Science Journal, 2021, 31(8): 91-96.

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