EXPERIMENTAL RESEARCH ON EFFECT OF PLATES ONEXPLOSION PRESSURES OF FLAMMABLE GAS CLOUDS

BI Mingshu; WANG Shulan; DING Xinwei; Abuliti ABUDULA

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EXPERIMENTAL RESEARCH ON EFFECT OF PLATES ONEXPLOSION PRESSURES OF FLAMMABLE GAS CLOUDS

更新时间：2025-12-10

- EXPERIMENTAL RESEARCH ON EFFECT OF PLATES ONEXPLOSION PRESSURES OF FLAMMABLE GAS CLOUDS
- CIESC Journal Issue 8, (2002)
- 作者机构：
  
  1. 大连理工大学化工学院
  2. 弘前大学理工学部
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 August 2002，
  
  Published：25 August 2002
- 稿件说明：
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BI Mingshu, WANG Shulan, DING Xinwei, et al. EXPERIMENTAL RESEARCH ON EFFECT OF PLATES ONEXPLOSION PRESSURES OF FLAMMABLE GAS CLOUDS[J]. CIESC Journal, 2002, (8).
DOI：

BI Mingshu, WANG Shulan, DING Xinwei, et al. EXPERIMENTAL RESEARCH ON EFFECT OF PLATES ONEXPLOSION PRESSURES OF FLAMMABLE GAS CLOUDS[J]. CIESC Journal, 2002, (8). DOI：

摘要

以乙炔 -空气为介质实验研究了平板形障碍物对可燃气云爆燃强度的影响

运用曲线拟合方法获得了弱点火条件下气云爆燃时平板形障碍物上的压力分布与气云初始半径、平板离开爆源中心的距离之间的关系式

为气云爆炸的缩放研究提供了基础 .讨论了平板形障碍物对气云爆燃强度的影响 .

Abstract

An experimental system was designed and constructed to study the effect of plates on flammable gas cloud explosion pressures.The semi-sph erical gas clouds were formed by 0.02?mm polyethylene films.In the spheri cal center was an ignition electrode that met ISO6184 "Explosion Protection System" and NFPA68 "Guide For Venting of Deflagrations".A data-acquisition syste m

with dynamic responding time less than 0.001s

recorded the explosion pressure-time diagran of acetylene-air mixture with stoichiometrical ratio.The initial cloud radii were 50cm and 100cm.The wood plates did not bend under t he explosion pressures.The distances of plates to the centers of gas clouds were 100

150

200

213.5 and 300?cm

respectively.By fitting the experimenta l data

the relationship between the maximum pressures on the plates and the initial radii of gas clouds

the distances to the centers of gas clouds

the incident angles and the coordinate values on plates are obtained.The equation fitting is effective under 99% confidence based on the mean square deviation analysis.

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