内蒙古电力技术2023，Vol.41Issue(6)：96-101,6.DOI:10.19929/j.cnki.nmgdljs.2023.0091
变频调速给水泵平衡盘磨损原因分析及对策
Analysis and Countermeasures of Balance Disc Abrasion of Feed Water Pump with Variable Frequency Drives
周柏成 1茆亚平 1姜冠军1
作者信息
- 1. 江苏国信仪征热电有限责任公司,江苏 扬州 225000
- 折叠
摘要
Abstract
Aiming at the multiple wear issues of the balance disc of the feed water pump in a gas-steam combined cycle unit during the initial production stage,combined with operation mode and fault phenomenon of the feed water pump,starting from the working principles of the balance disc and the minimum flow valve,the reasons for the wear of the balance disc are analyzed.It is concluded that the main reason for frequent wear of the balance disc is the long running time at low speed during the start-up process of the feed water pump.At the same time,this paper puts forward the optimization scheme of frequency conversion and speed-up curve of feed water pump.By setting different acceleration time of frequency converter and using DCS to carry out logic control,the running time of low speed of the feed water pump is reduced,and the problem of abnormal wear of balance disc of feed water pump is solved,which improving the reliability of feed water pump equipment.关键词
变频/平衡盘/升速曲线/最小流量阀/低转速Key words
frequency conversion/balance disc/speed-up curve/minimum flow valve/low speed分类
动力与电气工程引用本文复制引用
周柏成,茆亚平,姜冠军..变频调速给水泵平衡盘磨损原因分析及对策[J].内蒙古电力技术,2023,41(6):96-101,6.
