化工进展 ›› 2019, Vol. 38 ›› Issue (04): 1634-1645.DOI: 10.16085/j.issn.1000-6613.2018-0756

• 化工过程与装备 • 上一篇    下一篇

爆炸冲击波作用下化工设备易损性研究评述

胡昆(),陈国华(),周志航,黄孔星   

  1. 华南理工大学安全科学与工程研究所,广东 广州 510641
  • 收稿日期:2018-04-11 修回日期:2018-05-25 出版日期:2019-04-05 发布日期:2019-04-05
  • 通讯作者: 陈国华
  • 作者简介:<named-content content-type="corresp-name">胡昆</named-content>(1993—),男,博士研究生,研究方向为工业安全与风险评价技术。E-mail:<email>13533227907@163.com</email>。|陈国华,教授,博士生导师,研究方向为工业安全与风险评价技术、过程装备安全可靠性及风险评价技术。E-mail:<email>mmghchen@126.com</email>。
  • 基金资助:
    国家自然科学基金(21576102)

Review of the vulnerability of chemical equipment subjected to blast wave

Kun HU(),Guohua CHEN(),Zhihang ZHOU,Kongxing HUANG   

  1. Institute of Safety Science and Engineering, South China University of Technology, Guangzhou 510641,Guangdong, China
  • Received:2018-04-11 Revised:2018-05-25 Online:2019-04-05 Published:2019-04-05
  • Contact: Guohua CHEN

摘要:

爆炸冲击波是导致化工园区多米诺效应事故升级的重要原因之一。在文献分析的基础上,本文从爆炸冲击波强度表征、化工设备破坏失效的动力响应、破坏失效概率计算方法、易损性分析等4个方面,指出目前爆炸冲击波作用下化工设备易损性研究存在的不足,进而提出了进一步研究方向,包括不同爆炸类型的超压时程曲线特征与能量频谱规律研究、空间分布参数模型或集中参数模型的定量研究、基于结构可靠性的破坏失效概率计算方法、爆炸冲击波强度参数与设备抗性参数的易损性分析等,在此基础上系统性建立了爆炸冲击波作用下化工设备易损性研究的流程图,指出集中参数的可靠性方法与随机有限元法是爆炸冲击波作用下化工设备易损性研究的关键性方向,为提高爆炸冲击波多米诺效应定量风险评估的可靠度与精确度提供参考。

关键词: 爆炸冲击波, 多米诺效应, 设备易损性, 集中参数的可靠性方法, 随机有限元法

Abstract:

Blast wave is one of the important escalation factors of Domino effect in chemical industry parks. Based on the literature analysis, the inadequacies of current research on vulnerability of chemical equipment subjected to blast wave were pointed out, from the four aspects of the intensity characterization of blast wave, the dynamic response of equipment damage, the damage probability of equipment and the vulnerability analysis. It was suggested that the characteristic of overpressure history curve and energy spectrum about different explosion types, quantitative study on spatial distribution parameter model or lumped parameter model, damage probability methods based on the structural reliability and the vulnerability analysis of blast wave intensity parameters and equipment resistance parameters should be further studied. Based on these, the flow chart of the vulnerability of chemical equipment subjected to blast wave was built. The critical sections of equipment vulnerability analysis were the reliability method of lumped parameter and stochastic finite element method. The review can be considered as the reference for enhancing the reliability and accuracy of quantitative risk assessment of domino effect.

Key words: blast wave, Domino effect, equipment vulnerability, reliability method of lumped parameter, stochastic finite element method

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