Safety Assessment of Pressure Vessels Exceeding the Design Service Life of a Petrochemical Company's Rubber Plant

Abstract

The rubber plant of a petrochemical company has been built for a long time, some pressure vessels have exceeded the design service life or 20 years. It belongs to the pressure vessel beyond the design service life. A large number of devices and pressure vessels have entered or are about to enter the extended service stage. The detailed safety assessment of all equipment in service beyond the time limit is costly, inefficient and not targeted. Therefore, in this paper, through the screening of time-dependent damage modes. Focus on safety assessment of equipment with time-dependent damage such as corrosion, fatigue and creep. According to the screening and evaluation results, the safety assessment results and inspection management suggestions of the pressure vessel of the whole set of equipment are given. It is hoped that it can provide a reference for enterprises to manage the safety of pressure vessels beyond the design service life.