电厂闭式水泵永磁调速器改造的经济效益分析

华电技术 ›› 2015, Vol. 37 ›› Issue (3): 38-41.

电厂闭式水泵永磁调速器改造的经济效益分析

(1.华电国际电力股份有限公司莱州发电厂，山东莱州〓261400； 2.南京理工大学机械工程学院，南京〓210094； 3.南京艾凌节能技术有限公司，南京〓211122)

出版日期:2015-03-25 发布日期:2015-05-14

Analysis on economic benefit of reformation of permanent magnet speed controller of closed water pump in a power plant

(1.Huadian International Laizhou Power Plant, Laizhou 261400, China; 2.College of Mechanical Engineering，Nanjing University of Science and Technology, Nanjing 210094, China; 3.Nanjing Aling Energy Efficiency Technology Company Limited, Nanjing 211122, China)

Online:2015-03-25 Published:2015-05-14

摘要/Abstract

摘要： 摘要：闭式水泵通常采用阀门来调节流量和压力，导致大量的能源浪费。永磁调速和变频调速是目前常用的水泵调速节能技术，两者节能效果相当。从长期运行的角度来考虑，永磁调速器改造获得的经济效益比变频器更高，且能够提高系统的可靠性。华电国际电力股份有限公司莱州发电厂选择永磁调速器对闭式水泵进行调速节能改造，以控制水泵的流量和压力，减少能源浪费。改造后，闭式水泵运行更加稳定，耗电量显著减少，达到了预期的效果。

关键词: 关键词：闭式水泵, 永磁调速器, 变频器, 选型, 经济效益对比, 节能改造

Abstract: Abstract:The flow and the pressure of the closed water pump are usually adjusted by valve, but this causes large amount of energy waste. The permanent magnetic speed control and the variable frequency speed control are oftenused water pump speed control technologies, and the energy conservation effects of the two methods are roughly equal. Considering from the angle of longtime operation, the economic benefit of the permanent magnetic speed controller reformation is lager than the frequency converter, and the system reliability can be improved. So, in energysaving speedcontrol reformation of the closed water pump in Huadian International Laizhou Power Plant, the permanent magnetic speed controller was selected to control of the flow and the pressure of the pump and to reduce the energy consumption. After the reformation, the closed water pump operated more stably, the power consumption was reduced obviously, and the expected effect was achieved. 

Key words: Keywords:closed water pump, permanent magnet speed controller, frequency converter, type selection, economic benefit comparison, energy conservation reformation

赵勇1，张春杰1，王刚1，杨金发1，周丽萍2，李文武3. 电厂闭式水泵永磁调速器改造的经济效益分析[J]. 华电技术, 2015, 37(3): 38-41.

ZHAO Yong1, ZHANG Chunjie1, WANG Gang1, YANG Jinfa1, ZHOU Liping2, LI Wenwu3. Analysis on economic benefit of reformation of permanent magnet speed controller of closed water pump in a power plant[J]. Huadian Technology, 2015, 37(3): 38-41.

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