60000m^3/h空分设备氪氙浓缩塔氧化亚氮积聚的原因分析及处理  

Cause analysis and treatment of nitrous oxide accumulation at Kr-Xe concentration column of a 60000m^3/h air separation unit

作　　者：曹尚峰[1] 齐利兵[1] 

机构地区：[1]武汉钢铁集团氧气有限责任公司,湖北省武汉市青山区白玉山430083

出　　处：《深冷技术》2008年第B12期49-53,共5页

摘　　要：介绍G台60000m3/h空分设备氪氙浓缩塔顶部氧气压力下降的故障现象,详细分析了各种可能造成故障的原因后,得出氧化亚氮在氪氙浓缩塔底部液氧蒸发器空气通道积聚,使热负荷下降是故障发生的真正原因。利用整体相变复热技术,采用非常规加热方式,在短时间内排除了故障。The fault of oxygen pressure decrease at the top of Kr-Xe concentration column in a 60000m3/h air separation unit is introduced. Based on a detailed analysis of potential fault causes, it was concluded that nitrous oxide accumulation at the liquid oxygen evaporator＇s channels at the bottom of Kr-Xe concentration column was the reason of heat load decrease. The fault was eliminated immediately by adopting a non-conventional heating method with phase-changing heat regenerative technology.

关 键 词：大型空分设备 稀有气体 氪氙浓缩塔 液氧蒸发器 氧化亚氮 相变复热技术 

分 类 号：TQ116.4[化学工程—无机化工]