LDPE装置高压低温储罐选材与结构设计优化

摘要

针对LDPE装置高压低温储罐工艺设计要求,对国内外同类材料性能进行详尽对比分析,确定选用力学性能稳定、可焊性好的国产材料.通过结构对比分析,选用锻件制平底椭圆封头管口代替球形封头嵌入式接管结构,优化了顶部封头结构设计,改善了受力状况,以保证设备结构设计安全.%Though comparative analysis of domestic and foreign material properties,selects domestic materi-als of mechanical stability properties,good weld ability based on design requirements of High-pressure and Low-temperature Storage Drums for LDPE plant.Selection of the nozzle structure of forging flat elliptical head instead of the nozzle embedded spherical head,optimizing the top head structure design,improving the stress condition for safety of equipment design through the comparative analysis of structure.