水厂水泵变频调速技改方案及节能效益分析  

Analysis of Variable Frequency Speed-regulation Control Technical Transformation Scheme and Energy Saving Benefit for Waterworks Pump

作　　者：宋亮[1,2] 王正中[2] 谭剑波[1,2] 何自立[2] SONG Liang;WANG Zhengzhong;TAN Jianbo;HE Zili(Branch of Water Conservancy Engineering,Yangling Vocational and Technical College,Yangling 712100,Shaanxi,China;Institute of Water Resources and Hydropower Research,Northwest A&F University,Yangling 712100,Shaanxi,China)

机构地区：[1]杨凌职业技术学院水利工程分院,陕西杨凌712100 [2]西北农林科技大学水利水电科学研究院,陕西杨凌712100

出　　处：《电气传动》2019年第6期79-82,共4页Electric Drive

基　　金：国家科技支撑计划项目(2012BAD10B02);陕西省水利科技项目(SLKJ-2013-14)

摘　　要：为准确掌握加压水泵流量调节性能,提高改造后水厂供水服务质量及运营经济效益。根据尧头水厂供水现状,联合流量调节扬程调速特性,提出“一拖三”3 泵循环变频调速升级改造方案。技改应用表明,变频器根据管网实时压力智能优化控制策略和动态流量调节,确保每台水泵机组按用水需求循环进行变频/工频平滑切换,实现动态高效调控供水。通过合理更新升级改造,水泵机组电能转换效率和自动化控制水平得到全面提高,运行稳定可靠,节能、节电效果好。In order to accurately master the flow adjustment performance of pressurized pump and improve the water supply service quality and operating economic benefits of waterworks after transformation,based on water load situation and H-Q characteristic in flow adjustment ,the updated scheme with one inverter towing three pumps in circulation operation of Yaotou waterworks was proposed. Technical transformation application shows that the inverter intelligently optimizes the control strategy and dynamically controls the water flow through the pipeline real- time pressure which can ensure the frequency/work frequency smooth switching according to water demand and can achieve efficient dynamic regulation of water supply. After reasonable technological transformation,the power conversion efficiency and automation control level are improved,and the operation is stable and reliable with high energy saving and power saving effect.

关 键 词：水泵 扬程特性 变频调速 节能降耗 

分 类 号：TM921[电气工程—电力电子与电力传动] TV93[水利工程—水利水电工程]