基于动态故障树分析的化工反应釜干涸事故危险性研究
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摘要
根据化工系统的某反应釜干涸事故为例,建立了基于动态故障树的反应釜干涸事故模型,由该模型可知,液位传感器失效、控制器失效、管道泄漏等是反应釜干涸事故的基本事件。本文应用马尔科夫链法和二元决策图法分别对动态和静态子树进行定性和定量分析,得出最小顺序割集、故障模式、事故后果失效概率,在此基础上对反应釜干涸事故进行分析研究,并提出针对该事故的有效预防和改进措施。
Taking the drying-up accident of a reactor in a chemical system as an example, a model of drying-up accident of a reactor based on dynamic fault tree was established. From the model, it can be seen that the liquid level sensor failure, controller failure and pipeline leakage are the basic events of drying-up accident of the reactor. In this paper, Markov chain method and binary decision diagram method were applied to pair the two-way decision-making diagram. The dynamic and static subtrees were analyzed qualitatively and quantitatively, and the minimum sequence cut set, failure mode and failure probability of accident consequence were obtained. On this basis, the dry-up accident of reactor was analyzed and studied, and the effective prevention and improvement measures for the accident were put forward.
Taking the drying-up accident of a reactor in a chemical system as an example, a model of drying-up accident of a reactor based on dynamic fault tree was established. From the model, it can be seen that the liquid level sensor failure, controller failure and pipeline leakage are the basic events of drying-up accident of the reactor. In this paper, Markov chain method and binary decision diagram method were applied to pair the two-way decision-making diagram. The dynamic and static subtrees were analyzed qualitatively and quantitatively, and the minimum sequence cut set, failure mode and failure probability of accident consequence were obtained. On this basis, the dry-up accident of reactor was analyzed and studied, and the effective prevention and improvement measures for the accident were put forward.
引文
[1]徐丙凤，钟志成，何高峰.基于动态故障树的信息物理融合系统风险分析[J].计算机应用，2019,39(6):1735-1741.
[2]吴立杰.基于动态故障树的煤矿设备故障研究[J].机械管理开发，2019,34(1):91-93.
[3]李莉，刘翠杰，王政，等.动态故障树的边值多值决策图分析[J].计算机系统应用，2018,27(12):123-128.
[4]宫运华，徐越.基于动态故障树的化工系统动态风险评价[J].安全与环境工程，2015,22(2):134-138.
[2]吴立杰.基于动态故障树的煤矿设备故障研究[J].机械管理开发，2019,34(1):91-93.
[3]李莉，刘翠杰，王政，等.动态故障树的边值多值决策图分析[J].计算机系统应用，2018,27(12):123-128.
[4]宫运华，徐越.基于动态故障树的化工系统动态风险评价[J].安全与环境工程，2015,22(2):134-138.