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| Influence of rotating speed change to the performance of centrifugal pump |
| PEI Yi1, TIAN Li2, YANG Xiao-zhen1, SHI San-ming2 |
| 1.College of Engineering, Hunan Agricultural University, Changsha, Hunan 410128, China; 2.Central South University of Forestry and Technology, Changsha, Hunan 410004, China |
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Abstract The rotating speed has an influence on the pump performance.The operating point of centrifugal pump is affected by the characteristics of both pumps pipelines.By changing the rotating speed of pump in both open and closed pipelines,together with experimental data and calculated results for 50-160 type pumps,the effects of power are studied in detail.The effects of energy saving of variable speed pumps in the closed circuit are different from those in the open pipeline system.The reason is that there is a static head in the open system causing the pump efficiency varying.The energy saving effects of variable speed pumps in open systems are discussed and calculation examples are provided.According to the calculated result of 50-160 type pumps,the pump power in closed system is 76.47% of that in open system.
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Received: 08 August 2013
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| [1] 杨晓珍.不同转速对离心泵性能影响的试验研究[D].湖南农业大学,2004:33-37[2] 关醒凡.现代泵设计手册[M].北京:宇航出版社,1995:44-47[3] 王福军,魏永霞,裴毅.水泵与水泵站[M].北京:中国农业出版社,2005:87-90,103-105[4] .GB/T 3126-2005.回转动力泵水力性能验收试验1级和2级[S].北京:中国标准出版社,2006:13[5] 伍年青,盖学辉,于景龙.不同工况条件下离心泵调速运行的节能分析[J].石油机械,2001,28(7):40-43[6] 马新华,李娟,桑建国.变频调速在水泵节能技术中的应用[J].排灌机械,2006,24(1):34-36[7] 汤跃,尚亚波,吴徐.变频调速恒压与变压供水的能耗分析[J].排灌机械,2007,25(1):45-49[8] 刘宜,李会暖,刘晓阳.变频调速技术在水泵调节控制系统中的应用[J].排灌机械,2006,24(4):44-46 |
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