EXPERIMENTAL INVESTIGATION INTO DEFLAGRATIONS OF COMBUSTRIAL VAPOR CLOUDS

丁信伟; 李志义; 李应博

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EXPERIMENTAL INVESTIGATION INTO DEFLAGRATIONS OF COMBUSTRIAL VAPOR CLOUDS

更新时间：2025-12-16

- EXPERIMENTAL INVESTIGATION INTO DEFLAGRATIONS OF COMBUSTRIAL VAPOR CLOUDS
- CIESC Journal Issue 4, (1999)
- 作者机构：
  
  大连理工大学化工学院!大连116012,大连理工大学化工学院!大连116012,大连理工大学化工学院,大连,116012
- 作者简介：
- 基金信息：
- DOI：
  CLC： 381
- Online First：25 August 1999，
  
  Published：25 August 1999
- 稿件说明：
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丁信伟, 李志义, 李应博. EXPERIMENTAL INVESTIGATION INTO DEFLAGRATIONS OF COMBUSTRIAL VAPOR CLOUDS[J]. CIESC Journal, 1999, (4).
DOI：

丁信伟, 李志义, 李应博. EXPERIMENTAL INVESTIGATION INTO DEFLAGRATIONS OF COMBUSTRIAL VAPOR CLOUDS[J]. CIESC Journal, 1999, (4). DOI：

摘要

开敞空间蒸气云爆炸(Unconfined Vapor Cloud Explosions)会导致巨大的财产损失和人员伤亡.因此

对开敞空间蒸气云爆炸的爆炸威力进行定量分析

了解其破坏模式

提出防灾减灾措施

是十分必要和有意义的.开敞空间中的蒸气云爆炸大多为爆燃现象

可燃气体云爆燃场是一种非理想爆源所产生的爆炸场.对这种爆燃场进行的实验研究

国外已有报道

如Layer等人的肥皂泡技术(规模较小)及Lind和Strehlow采用聚乙烯薄膜作为限制物(较大规模)的实验研究.国内尚无此类报道.本文对可燃气体爆燃场进行了中、小规模的实验研究.采用可燃气体与空气的近化学计量比混合物

气体用聚乙烯薄膜限制成半球形状

其直径D分别为1、2和3m不等

点火后对各测点的压力用高速、多通道数据采集系统进行数据采集.本实验的结果可以用来验证理论方法

也可以为进一步的研究提供参照的依据.

Abstract

Experimental investigations into deflagration of approximate - quiescent state and pre-mixed combustrial vapor cloud were conducted. The overpressure distributions of hemispheric mixtured vapor clouds with diameters 1

2 and 3m respectively were experimentally measured. The pressure time histories (p-t curves) at different positions were given. The characteristics of deflagration overpressure were discussed. The results can be used to verify theoretical methods and provide reference for further research.

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