Finite element simulation, safety assessment and countermeasure of the coke drum leaning process during the quenching stage

摘要

The coke drum with a side channel at the beginning of cooling was simulated numerically using ANYSY, and the time history of the stress and strain fields were also acquired with indirect coupling method. The calculation results indicate that temperature stress and bending stress caused by the cold spots will cause bulging of the shell and the tilt of coke drum. With the coke drum tilting, the shell at the skirt seat will yield and the coke drum was in a dangerous state. The results of ANSYS show that the reinforcement of arc plate can effectively reduce the membrane stress on the skirt. The side channel and reinforcement of arc plate serve as the analysis for coke drum leaning and design of the skirt seat.