中速磨煤机液压系统运行优化研究  

Study of Operation Optimization of Hydraulic System of Medium Speed Coal Mill

作　　者：曾国兵[1] 刘聪[1] 魏佳佳[1] 胡胜利[1] 余长军[1] ZENG Guobing;LIU Cong;WEI Jiajia;HU Shengli;YU Changjun(Anhui Electrical Engineering Professional Technique College,Hefei 230051,China)

机构地区：[1]安徽电气工程职业技术学院,安徽合肥230051

出　　处：《安徽电气工程职业技术学院学报》2022年第3期99-103,共5页Journal of Anhui Electrical Engineering Professional Technique College

基　　金：安徽省2020年质量工程项目“曾国兵技术技能型大师工作室”(项目编号:2020dsgzs04)。

摘　　要：随着燃煤电厂深度调峰的进行,机组峰谷负荷差距大,磨煤机运行故障率显著升高。文章介绍了中速磨煤机液压加载系统组成及变加载工作原理,对调峰机组磨煤机运行中出现的问题进行了分析,针对磨煤机液压控制系统中的DCS控制逻辑进行了优化调整试验,解决了磨煤机低出力振动大、制粉电耗偏高、磨辊磨损严重、高负荷出力受限等问题,可为同类型磨煤机液压系统优化提供参考。With the deep peak shaving of coal-fired power plants, the load gap between peak and valley of units is large, and the rate of coal mills operation failure increases significantly. This paper introduces the composition of the hydraulic loading system of the medium speed coal mill and the working principle of variable loading, analyzes the problems in unit operation, conducts optimization test on the DCS control logic in the hydraulic control system and solves the problems of large vibration, high power consumption, serious roller wear and high load output limitation, which can provide reference for the same type of coal mill hydraulic system optimization.

关 键 词：中速磨煤机 液压系统 比例溢流阀 试验 

分 类 号：TM621.2[电气工程—电力系统及自动化]