Application Research on Venting Structure with Light and Fragile Material in Venting Protection of Gas Explosion

doi:10.3969/j.issn.1000-1093.2018.01.013

Abstract

Abstract: In order to explore the protecting effect of venting structure with light and fragile material on gas explosion in building, the dynamic characteristics of venting structure under gas deflagration condition are analyzed according to the characteristics of internal gas deflagration overpressure and the protective theory of venting structure with light and fragile material. The vented explosion tests are performed by the gas explosion loading experimental equipment. The principles of using the venting structure with light and fragile material are proposed according to the current national design code of venting deflagration, which can be used in engineering protection of indoor gas explosion. The experimental verification methods of venting performance are also presented. The research results show that, for a venting structure with calcium silicate board, the opening dynamic pressure decreases with the increase in the duration time of gas deflagration pressure. Such venting structure should be used in the case of internal gas deflagration pressure with long duration time, and the opening dynamic pressure is regarded as its venting index and the venting performance test should be made. Key

Key words: ventingstructurewithlightandfragilematerial, gasexplosion, ventingexplosion, openingdynamicpressure, verificationexperiment

CLC Number:

X932

GAO Kang-hua, WANG Ming-yang, GUO Qiang, ZHAO Tian-hui, SUN Song. Application Research on Venting Structure with Light and Fragile Material in Venting Protection of Gas Explosion[J]. Acta Armamentarii, 2018, 39(1): 118-126.

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第39卷
第1期2018 年1月兵工学报ACTA
ARMAMENTARIIVol.39No.1Jan.2018

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