球形容器与管道内甲烷-空气混合物爆炸强度的尺寸效应

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

化工学报 ›› 2012, Vol. 63 ›› Issue (S2): 204-209.DOI: 10.3969/j.issn.0438-1157.2012.z2.038

• 能源和环境工程 • 上一篇

球形容器与管道内甲烷-空气混合物爆炸强度的尺寸效应

崔益清, 王志荣, 蒋军成

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

收稿日期:2012-06-18 修回日期:2012-09-28 出版日期:2012-12-28 发布日期:2012-12-28
通讯作者: 王志荣
作者简介:崔益清(1987-),男,硕士研究生。
基金资助:
国家自然科学基金项目(50904037);江苏省高校自然科学基金项目(11KJA620001,10KJB620001)。

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

CUI Yiqing, WANG Zhirong, JIANG Juncheng

Key Laboratory of Urban and Industry Safety in Jiangsu Province, Nanjing University of Technology, Nanjing 210009, Jiangsu, China

Received:2012-06-18 Revised:2012-09-28 Online:2012-12-28 Published:2012-12-28
Supported by:
supported by the National Natural Science Foundation of China(50904037).

摘要/Abstract

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。

关键词: 球形容器与管道, 爆炸强度, 尺寸效应, 容器内径, 管道长度

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.

Key words: spherical vessels and pipes, explosion intensity, size effect, vessel diameter, pipe length

中图分类号:

TE687
TQ086

崔益清, 王志荣, 蒋军成. 球形容器与管道内甲烷-空气混合物爆炸强度的尺寸效应[J]. 化工学报, 2012, 63(S2): 204-209.

CUI Yiqing, WANG Zhirong, JIANG Juncheng. Size effect of methane-air mixture explosion intensity in spherical vessels and pipelines[J]. CIESC Journal, 2012, 63(S2): 204-209.

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球形容器与管道内甲烷-空气混合物爆炸强度的尺寸效应

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

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