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石油化工企业的快速发展对空分装置的产能提出了更高的要求。随着产能的逐级扩大，空分装置的大型化使得设备布置及管道设计也更加复杂化。空分装置以洁净空气为原料，布置设计包含过滤及压缩系统、预冷系统、纯化系统、空气增压压缩系统、冷箱精馏系统以及液态储存系统。各单元的合理布置及管道设计，是空分装置设计过程中的重要内容。“,”the rapid development of petrochemical enterprises puts forward higher requirements for the capacity of air separation unit. With the gradual expansion of production capacity, the large-scale air separation unit makes the equipment layout and pipeline design more complex. The air separation unit uses clean air as raw material, and the layout design includes filtration and compression system, precooling system, purification system, air pressurization and compression system, cold box distillation system and liquid storage system. The reasonable layout of each unit and pipeline design are important contents in the design process of air separation unit.