40000m^3/h内压缩流程空分设备冷开车操作  

Cold start operation of 40000 m^3/h inner compression process air separation plant

作　　者：尹文辉 

机构地区：[1]福建炼化林德气体有限责任公司,福建省泉州市泉港区362800

出　　处：《深冷技术》2011年第2期1-6,共6页

摘　　要：2套40000 m3/h空分设备在试车过程中停车次数较多,严重影响了开车进度。通过正确分析原因,总结出了一套快速恢复主塔和制氩系统工况的空分设备冷开车操作程序,提高了空分设备运行的可靠性和经济性。文章介绍了40000 m3/h空分设备的工艺流程和技术参数,详细分析了多次冷开车过程中遇到的上塔超压、下塔液空液位上涨过快、主冷液氧纯度合格耗时长和制氩系统启动缓慢等异常现象的原因,以及采取的针对性改进措施。During trial running of two sets of 40000 m3/h air separation plant,shutdown occurred frequently,which seriously impaired the start progress.Through correct analysis of causes,a cold start operation procedure of air separation plant to fast recover the case of main and argon making system is summarized,and the procedure improves the reliability and economy of operation of the air separation plant.Here,technical process and technical parameters of the 40000 m3/h air separation plant are briefed,the causes for abnormalities encountered during several cold start operation such as over-pressure of upper tower,excessive fast raise of liquefied air level in lower tower,excessive long time required to reach qualified purity of liquefied oxygen in main condenser,and slow start of the argon making system are in details analyzed and prospective improving measures are described.

关 键 词：大型空分设备 内压缩流程 冷开车 精馏塔系统 制氩系统 

分 类 号：TQ116.11[化学工程—无机化工]