Research Progress of Risk-based Inspection Technology in Petrochemical Industry
Risk-based inspection(RBI)is a kind of equipment risk management technology adopted in Western developed countries in the past 30 years,which is widely used in the field of petrochemical in-dustry.Based on so-called fast process condition,RBI recommends inspection strategies,that predict the remaining life of the equipment,thereby providing inspection solutions with higher efficiency and lower costs.RBI is a risk assessment and management process that provides a way to determine the best checks.RBI can identify high-risk and low-risk devices and focus inspection resources on high-risk devic-es at the same time.This paper introduces the types and implementation process of RBI technology and methods,as well as the research progress and status quo of RBI at home and abroad,reviews the re-search status and corrosion problems of RBI technology in typical petroleum refining and chemical fields,analyzes the application of risk priority number(RPN)in risk testing and the dynamic testing method based on risk testing.The advantages and existing problems of RBI technology are expounded,and the development direction of RBI risk assessment is forecasted on this basis.