水泵机组节能优化及效果评价  

Operation Optimization and Evaluation of Pumping Units in a Water Plant

作　　者：宛如意[1] 颜浩[1] 吴彦辉[1] 

机构地区：[1]深圳市水务<集团>有限公司,广东深圳518000

出　　处：《中国给水排水》2017年第9期53-56,共4页China Water & Wastewater

摘　　要：在对S水厂送水泵进行效率曲线测试、实际效率计算和运行工况分析的基础上,指出了原有运行模式存在的问题,包括定速泵和调速泵均无法运行在高效区,定速泵因实际运行远离额定工况点导致水泵气蚀、电机过载运行。针对这些问题,提出对定速泵叶轮进行切削改造、优化组合搭配调速机组与定速机组的运行数量等措施,通过对采取具体措施前后的节能效果进行评价和经济效益分析,验证了调速水泵与切削叶轮的定速水泵组合运行时可获得较满意的节能效果。This study monitored water-delivery pumps from S water plant, calibrated efficiency curves, tested actual efficiency, and analyzed operating conditions, in order to identify shortages of cur- rent operation plan. It was found that neither variable nor constant speed pumps were working close to the best efficiency point. Moreover, the constant-speed pumps were working offset from the best operation point and were causing cavitation and motor overloading. Two solutions were provided to resolve these problems--trim the impeller to modify the efficiency curve, or rearrange the number or the type of pumps to meet the need of water supply. Using economic and efficiency analysis, these solutions were proved valid and satisfying.

关 键 词：送水泵 高效区 叶轮切削 优化运行 

分 类 号：TU991.35[建筑科学—市政工程]