Research on corrosion and balanced design technology for high-pressure air coolers in hydrogenation units
The corrosion of high-pressure air cooler in hydrogenation unit was introduced,and the balanced design concept for piping in air cooler as well as the problems existing in practical engineering design were elaborated.Combined with years of engi-neering experience,the effects of different straight pipe lengths after elbows,varied straight pipe lengths after tees,and several bend radii on the flow field inside the air cooler pipe system were analyzed by using CFD numerical simulation;meanwhile,the influence of multiple factors in the pipe system on the straight pipe lengths and elbow radius was obtained.Based on this,the concept of fully balanced design was proposed,and the optimal straight pipe length and the optimum bend radius were specified for different pipe systems in various dimensions,so as to optimize the design of pipe system,ensure uniform distribution of media,and reduce the investment of pipe system.
high pressure air coolerammonium salt corrosionfully balanced designnumerical simulationflow field simulation