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.
关键词
高压空冷器/铵盐腐蚀/完全平衡设计/数值仿真/流场模拟
Key words
high pressure air cooler/ammonium salt corrosion/fully balanced design/numerical simulation/flow field simulation
维普
万方数据