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化工学报  2015 

在役LNG接收站的SIS系统再验证

DOI: 10.11949/j.issn.0438-1157.20150721, PP. 271-278

Keywords: 天然气,过程控制,安全仪表系统,SIL验证,PSMSuite?,马尔可夫算法,敏感性分析

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Abstract:

广东大鹏LNG接收站作为中国最早投用的LNG接收站,在5年的高负荷运行后中新增并改造了部分设备及功能安全回路(SIF),为确保接收站功能安全仪表系统(SIS)的完整性与可靠性以及高负荷生产的可用性,对所有生产设施及管线场站进行了HAZOP分析,并在HAZOP分析的基础上进行了SIL定级及再验证(re-validation)工作。本文以SIL再验证工作为例介绍SIL验算/再验证在在役装置中的应用,以及如何通过敏感性分析优化SIS系统配置与校验管理,满足企业风险可接受标准,最后总结并展望了实施SIL验算工作中的技术难点和未来的技术方向。

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