首页> 外文会议>Center for Chemical Process Safety Annual International Conference; 20040629-0701; Orlando,FL(US) >Accounting for Dynamic Processes in Process Emergency Response Using Event Tree Modeling
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Accounting for Dynamic Processes in Process Emergency Response Using Event Tree Modeling

机译:使用事件树建模对流程紧急响应中的动态流程进行核算

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When a loss of containment of flammable materials occurs in a process plant, competing dynamic processes take place. On the one hand, the established emergency response comes into action, with a pre-planned action sequence. Simultaneously, the initial incident tends to grow in scale, depending on the level of process safeguarding provided, and its reliability. Emergency response plans generally do not account for the dynamics of emergency control versus escalation, which can determine the ultimate course of the emergency. Should escalation occur before the incident is controlled, the safety of emergency response crew is endangered, and there is greater risk of asset damage on a larger scale. This paper outlines a method by which the competing dynamic processes of incident escalation and incident control can be assessed using event tree analysis. Examples of event trees are provided from hypothetical emergency scenarios in an oil refinery. Escalation times for impinging fires, assessed from heatup analysis, are compared with required response times from the emergency crew. Improvements to process safeguarding design and emergency response are identified. Suggestions are made for design enhancements and for making the emergency response plan more robust. The method also allows for improvements in emergency training, and for the development of additional contingency measures.
机译:当加工厂中易燃材料的密封性降低时,就会发生动态竞争过程。一方面,已建立的应急响应以预先计划的行动顺序开始执行。同时,取决于提供的过程保护级别及其可靠性,初始事件的规模趋于扩大。应急响应计划通常不考虑应急控制与升级的动态关系,这可以确定应急的最终过程。如果在事件得到控制之前发生升级,则紧急救援人员的安全将受到威胁,更大范围内资产损坏的风险也更大。本文概述了一种方法,可以使用事件树分析来评估事件升级和事件控制的竞争动态过程。从炼油厂的假设紧急情况中提供了事件树的示例。通过加热分析评估的发生火灾的上报时间与紧急救援人员所需的响应时间进行了比较。确定了过程保障设计和紧急响应方面的改进。提出了一些建议,以增强设计并使紧急响应计划更加健全。该方法还可以改善紧急情况培训,并可以制定其他应急措施。

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