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首页> 外文会议>Center for Chemical Process Safety Annual International Conference; 20040629-0701; Orlando,FL(US) >Blast Wave Damage to Process Equipment as a Trigger of Domino Effects
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Blast Wave Damage to Process Equipment as a Trigger of Domino Effects

机译：爆炸波对多米诺骨牌效应造成的工艺设备损害

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摘要

The assessment of damage to process equipment caused by blast waves may be carried out at different levels of detail, depending on the final aim of the analysis. With specific reference to the risk of domino effects, the starting point is the identification of equipment that may be damaged by blast waves originated from primary accidental scenarios. In this framework, the straightforward identification of possible damage following a blast wave is greatly enhanced by the availability of the so-called damage threshold values, i.e. minimum overpressure values at which a damage is expected on a given "target" equipment. Several authors have reported different and apparently contradictory threshold values for equipment damage caused by overpressure. The present study focuses on the definition of threshold values for both damage and loss intensity from process equipment. The concept of loss intensity was specifically defined in the framework of domino risk analysis. A fuzzy set model was developed to assess the thresholds for loss intensity of equipment given the maximum peak overpressure caused by a primary explosion. Threshold values were evaluated for different categories of process equipment and compared to values given in the open literature and international guidelines. The threshold values were used to define safety distances for domino effects. The results of the study confirm the necessity of taking into account the specific characteristics of different categories of industrial equipment for the reliable assessment of blast wave damage.
机译：根据分析的最终目的，可以按照不同的详细程度对爆炸波对过程设备造成的损坏进行评估。特别是在涉及多米诺骨牌效应的风险时，首先要确定可能被主要意外情况引起的爆炸波损坏的设备。在该框架中，通过使用所谓的损伤阈值，即在给定的“目标”设备上预期会受到破坏的最小超压值，大大提高了对爆炸波可能造成的破坏的直接识别。一些作者报告了由超压引起的设备损坏的不同且明显矛盾的阈值。本研究着重于工艺设备的损伤和损失强度阈值的定义。损失强度的概念是在多米诺骨牌风险分析框架中专门定义的。建立了一个模糊集模型来评估给定由一次爆炸引起的最大峰值超压的设备损失强度阈值。对不同类别的过程设备的阈值进行了评估，并与公开文献和国际指南中给出的值进行了比较。阈值用于定义多米诺骨牌效应的安全距离。研究结果证实，必须考虑不同类别工业设备的特定特征，才能可靠地评估爆炸波的破坏。

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