摘要
介绍了20 000 m3/h空分装置混流式空压机组流程和结构。通过对空压机喘振现象判断,确认机组发生了段间喘振,分析了段间喘振的原因:段间换热器内漏,导致空压机转子叶轮结垢,流道变窄所致。采取了以下措施:采用段间放空方法,有效避免了喘振现象;采用在线清洗方法,减少了振值波动;利用大修彻底消除隐患等,有效保证了机组的安全稳定运行。
The process and structure of the mixed flow air compressor unit of 20000m^3/h air separation plant were introduced.Through description of the air compressor surge phenomenon,it was confirmed that the unit had inter-stage surge.The reason for the surge was the internal leakage of the inter-stage heat exchanger,which resulted in the scaling of the compressor rotor impeller and the narrowing of flow path.The measures adopted were as follows:adopted the inter-stage venting method to effectively avoid the surge phenomenon;adopted the online cleaning method to reduce the fluctuation of vibration value;utilized overhaul to completely eliminate the potential risk,which effectively ensured the safe and stable operation of the unit.
作者
魏文斌
Wei Wenbin(Tianji Coal Chemical Group Co.,Ltd.,Lucheng Shanxi 047507,China)
出处
《煤化工》
CAS
2018年第6期48-51,共4页
Coal Chemical Industry
关键词
混流式空压机
喘振
段间换热器
叶轮
段间放空
在线清洗
mixed flow air compressor
surge
inter-stage heat exchanger
impeller
inter-stage venting
online cleaning