The Study Of Fuzzy Probability Risk Assessment Of Gravely Risk Equipments In Petrochemical Corporation

In many factors of affecting working safely in petrochemical corporation, the workingsafely of the equipments acts weightily to ensure the working safely in petrochemical. Theequipments of petrochemical corporation, many of which are dangerous equipments, are calledon-line dangerous equipments. In the traditional management mode, the fault probability ofthe equipment is high in early days after the put into production and the design life-span, andlow in the run days. carrying through risk assessment to the equipment termly can find thelimitation in time and take action, which make the fault probability change placidly and addthe life of the equipment.This paper bring forwards a simple, economic and effective risk assessment method,which is Fuzzy Probabilistic Risk Assessment, and established the math model of this menthod.This method develop to the fault characteristic of the dangerous equipment. It is on the basisof PRA, synthesizing FMEA and FTA, evaluate the dangerous equipment. This method canfind the hidden trouble timely, ascertain the danger degree and direction the safety manage andthe examination.analyzing the unsureness of the probability of the fault of gravely risk equipments inpetrochemical corporation, introduced fuzzy theory, bring forward expressing the probabilityby fuzzy number, to reduce the difficulty of getparms, and studying the subjection function toget the result more scientific and exactler.In the fourth chapter of this paper, applying the fuzzy probability risk assessment andworkout the risk assessment soft.