离心压缩机变频与串级-分程控制方案的设计选用  

Design and Selection of Centrifugal Compressor Frequency Conversion and Cascade-Split Control in Natural Gas Processing Plant

作　　者：刘衍钊 LIU Yan-zhao(CNOOC Petrochemical Engineering Co. ,Ltd.)

机构地区：[1]中海油石化工程有限公司

出　　处：《化工自动化及仪表》2018年第8期598-600,630,共4页Control and Instruments in Chemical Industry

摘　　要：针对某天然气处理厂离心压缩机变频调节存在的问题,设计了合理稳定的控制方案。实际测试表明:采用压力串级-分程控制方案能够有效稳定系统压力波动。Considering matters which bothering frequency conversion of centrifugal compressors in natural gas processing plant,a reasonable and stable control scheme for them was designed. Practical testing shows that,the pressure cascade-split control scheme adopted can stabilize the pressure surge effectively.

关 键 词：离心压缩机 天然气增压 外输压力 调节阀 放空阀 变频调节 串级-分程控制 

分 类 号：TH452[机械工程—机械制造及自动化]