液氮贮槽及事故氮泵密封气系统的优化改造  

Optimization of liquid nitrogen storage tank and sealing gas system of emergency nitrogen pump

作　　者：王轩宇 张慧龙 WANG Xuanyu;ZHANG Huilong(Shandong Energy Group Inner Mongolia Huangtaolegai Coal Co.,Ltd.,Ordos 017313,Inner Mongolia)

机构地区：[1]山东能源集团内蒙古黄陶勒盖煤炭有限责任公司,内蒙古鄂尔多斯017313

出　　处：《氮肥技术》2023年第4期30-32,共3页Nitrogenous Fertilizer Technology

摘　　要：针对空分系统在系统停车状态下液氮贮槽及事故氮泵没有密封气的问题,通过重新布置压力氮气管线、并入0.5 MPa氮气管线及增加仪表空气管线,三路气源能够分别在不同工况下相互切换,确保了液氮贮槽及事故氮泵的密封气连续供应,保证了设备的稳定运行。Aiming at the problem that there is no sealing gas in liquid nitrogen storage tank and accidental nitrogen pump when shut down of air separation system,we rearrang the pressure nitrogen pipeline,merge the 0.5MPa nitrogen pipeline and add the instrument air pipeline,so that the three gas sources can be switched to each other under different working conditions,ensuring the continuous supply of sealing gas to the liquid nitrogen storage tank and accidental nitrogen pump to ensure the stable operation of the equipment.

关 键 词：密封气 问题 措施 效果 

分 类 号：TQ116.15[化学工程—无机化工]