石化装置静设备动态风险计算方法浅析

Discussion of Dynamic Risk Assessment Calculation Method for Petrochemical Static Equipment

在役承压设备运行时,工艺参数不可避免会发生波动,因而设备运行风险是动态变化的。本文基于静设备风险计算方法,分析了静设备失效可能性定量计算的组成因子,研究各因子的计算流程,辨识设备运行中的波动参数,分析了波动参数对设备风险的影响。通过配置工艺、腐蚀等系统的接口,把相关波动的参数值引入设备风险评价系统,计算设备的风险值,实现设备风险值的动态计算和跟踪,为设备安全运行、风险评价和检维修策略提供指导。

Fluctuation of the chemical process parameters is common for the equipments in-service. It results in that the risk of equipments is dynamic. For the in-service special equipments, the corresponding parameters and calculation of the dynamic risk should be paid more attention. The influence factors used in failure probability calculation are analyzed in detail, and the influence factors corresponding to the dynamic risk are summarized in this paper. Referred to the characteristic of process industrial management, the factors are divided into operation, process, corrosion and fault. Through computer network port, the corresponding factors are read into the risk assessment system. Then the equipment dynamic risk is calculated and monitored. The results can be referred to guide the equipment safety management.