苯乙烯装置氢气压缩机气阀故障及改进措施  

Failure and Improvement Measures of Hydrogen Gas Compressor Valve in Styrene Plant

作　　者：啜国栋 李洪伟 徐万年[2] 刘婷婷 CHUAI Guo-dong;LI Hong-wei;XU Wan-nian;LIU Ting-ting(Fushun Petrochemical Co.,Ltd. No.2 Refinery Factory,Fushun 113000,China;Daya Bay Nuclear Power Operations And Management Co.,Ltd.,Shenzhen 518124,China)

机构地区：[1]抚顺石油化工有限公司炼油二厂,辽宁抚顺113000 [2]大亚湾核电运营管理有限责任公司,广州深圳518124

出　　处：《压缩机技术》2019年第2期46-48,共3页Compressor Technology

摘　　要：针对苯乙烯装置氢气压缩机气阀排气温度过高,阀片结焦严重,气阀使用寿命过短的问题,通过充分的了解现场使用工况、工艺特点,找出造成气阀频繁失效的根本原因,并针对现场实际情况重新对气阀进行选型计算,改进原气阀结构形式,解决了气阀寿命过短的问题,实现往复压缩机的长周期运行,减少了机组切换的潜在隐患和维修费用。Aiming at the problems that the exhaust temperature of the hydrogen compressor valve of the styrene plant is excessive high, the valve is coked seriously, and the service life of the valve is too short, the fundamental reason for the frequent failure of the valve is found out by fully understanding the working conditions and process characteristics of the site. The selection for the valve was re-calculated aiming at the site situation and the structural type of valve was improved. The problem of short service life was solved, and the long-cycle operation of reciprocating compressor was realized and the potential hazard and maintenance cost of the unit was reduced.

关 键 词：气体带液 杂质 气阀结息 弧面密封环状阀 

分 类 号：TH457[机械工程—机械制造及自动化]