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首页> 外文期刊>Transactions of The Institution of Chemical Engineers. Process Safety and Environmental Protection, Part B >The role of component arrangement in complex safety instrumented systems-A case study
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The role of component arrangement in complex safety instrumented systems-A case study

机译：组件布置在复杂安全仪表系统中的作用-案例研究

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The arrangement of components plays a key role in the performance of complex Safety Instrumented Systems (SIS), in which a MS logic solver is interlocked with other logic solvers, to share a final element, for instance. The position of the components and the way they are utilized affects the reliability characteristics, such as the Probability of Failure on Demand (PFD), Spurious Trip Rate (STR), architectural sensitivity and model uncertainty. This case study uses quantitative and qualitative approaches to elaborate on various aspects of component arrangement in complex SIS. Numerous simplified models are analyzed; new classification is introduced for SIS components based on their response to demand; a set of guidelines are developed for MS architecture design, with a focus on component arrangement; and the use of these guidelines is demonstrated in a real-life example, where an existing turbine SIS is modified to incorporate a new over-speed protection system. The simplified models and the turbine upgrade project are also used to explain the issue of unknowns and uncertainties in reliability analysis and how these issues can be addressed in SIS architecture by optimizing component arrangement. (C) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机译：组件的布置在复杂的安全仪表系统（SIS）的性能中起着关键作用，例如，MS逻辑求解器与其他逻辑求解器互锁以共享一个最终元素。组件的位置及其使用方式会影响可靠性特征，例如按需故障概率（PFD），杂散跳闸率（STR），体系结构敏感性和模型不确定性。本案例研究使用定量和定性方法详细阐述了复杂SIS中组件排列的各个方面。分析了许多简化模型;根据对需求的响应，为SIS组件引入了新的分类;制定了一套针对MS体系结构设计的指南，重点是组件的布置;并在一个实际示例中演示了这些准则的使用，其中对现有涡轮机SIS进行了修改，以合并新的超速保护系统。简化的模型和涡轮机升级项目还用于解释可靠性分析中未知和不确定性的问题，以及如何通过优化组件布置在SIS体系结构中解决这些问题。 （C）2015化学工程师学会。由Elsevier B.V.发布。保留所有权利。

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