Size effect of methane-air mixture explosion intensity in spherical vessels and pipelines

CUI Yiqing; WANG Zhirong; JIANG Juncheng

doi:10.3969/j.issn.0438-1157.2012.z2.038

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Size effect of methane-air mixture explosion intensity in spherical vessels and pipelines

更新时间：2025-12-10

- Size effect of methane-air mixture explosion intensity in spherical vessels and pipelines
- CIESC Journal Issue S2, Pages: 204-209(2012)
- 作者机构：
  
  南京工业大学城市与工业安全江苏省重点实验室,江苏,南京,210009
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.z2.038
  CLC： E687TQ086
- Online First：28 December 2012，
  
  Published：28 December 2012
- 稿件说明：
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CUI Yiqing, WANG Zhirong, JIANG Juncheng. Size effect of methane-air mixture explosion intensity in spherical vessels and pipelines[J]. CIESC Journal, 2012, (S2): 204-209.
DOI：

CUI Yiqing, WANG Zhirong, JIANG Juncheng. Size effect of methane-air mixture explosion intensity in spherical vessels and pipelines[J]. CIESC Journal, 2012, (S2): 204-209. DOI： 10.3969/j.issn.0438-1157.2012.z2.038.

摘要

通过实验和理论分析

从球形容器内径、单个球形容器接管长度和连通容器连通管道长度变化3个方面

研究了球形容器与管道内甲烷-空气混合物爆炸强度的尺寸效应。研究表明:单个球形容器接管后

球形容器中最大爆炸压力和最大压力上升速率均随接管长度的增加逐渐减小

而小球接管时的管道末端气体最大爆炸压力和最大压力上升速率随连接管道长度的增加逐渐增加;在连通器结构中

传爆容器中最大爆炸压力和最大压力上升速率随连通管道长度的增加呈线性关系增加。研究结果揭示了尺寸效应对气体爆炸强度的影响规律

为球形容器与管道泄爆安全设计提供依据和重要参考。

Abstract

Size effect on explosion intensity of methane-air mixture in spherical vessels and pipes was investigated.The experimental results suggested diameter of the spherical vessel

the length of connection pipes of single vessel and the length of connection pipes between two spherical vessels played a great role in explosion intensity of methane-air mixture in spherical vessels and pipes.The maximum explosion pressure and the maximum rate of pressure rise in single vessel with connection pipes both decrease due to the increase of the length of connection pipes.And the maximum explosion pressure and the maximum rate of pressure rise appeared at the end of connection pipes.For linked vessels

the explosion intensity in secondary vessel increased with the increasing of the length of connection pipes with linear relationships.The conclusions provided important reference for safety design of explosion venting and explosion resistance.

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