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泄爆面积对连通容器预混气体泄爆影响的实验研究

尤明伟 蒋军成 喻源 王志荣

实验流体力学2011,Vol.25Issue(5):51-54,4.
实验流体力学2011,Vol.25Issue(5):51-54,4.

泄爆面积对连通容器预混气体泄爆影响的实验研究

Experimental study on effect of venting area on premixed flammable gas explosion venting in linked vessels

尤明伟 1蒋军成 2喻源 1王志荣1

作者信息

  • 1. 南京工业大学城市建设与安全工程学院,南京210009
  • 2. 福建消防总队,福州 350003
  • 折叠

摘要

Abstract

Linked vessels explosion venting experiment was carried out in two different-volume spherical vessels connected by cylindrical pipes. Flame propagation and pressure development trend were studied under different venting areas. It is shown that flame accelerates during its propagation from the first vessel to the second vessel, but its speed is low compared with closed explosion's. Explosion pressure and maximum rate of pressure rise increase with the decrease of venting area. Both maximum pressure and maximum rate of pressure rise are greater than the values of single vessle explosion due to the effects of flame acceleration in pipe and pressure piling and the the effect is more obvious especially when small vessel is used as the second vessel. Results of this study indicate that explosion venting design standards, codes and guidance of single vessel can not be used for linked vessels.

关键词

连通容器/气体泄爆/火焰传播速率/爆炸强度

Key words

linked vessels/gas explosion venting/flame propagation rate/explosion intensity

分类

数理科学

引用本文复制引用

尤明伟,蒋军成,喻源,王志荣..泄爆面积对连通容器预混气体泄爆影响的实验研究[J].实验流体力学,2011,25(5):51-54,4.

基金项目

国家自然科学基金(20976081,50904037) (20976081,50904037)

江苏省高校自然科学基金(10KJB620001) (10KJB620001)

实验流体力学

OA北大核心CSCDCSTPCD

1672-9897

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