| 南水北调沿线离心泵站车削技术改造的研究 |
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| 引用本文： | 张多锋,赵丙峰,梁秋生,常亚丽.南水北调沿线离心泵站车削技术改造的研究[J].排灌机械,2003,21(2):22-24. |
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| 作者姓名： | 张多锋 赵丙峰 梁秋生 常亚丽 |
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| 作者单位： | 1. 山东水利职业学院
2. 山东省曲阜市水利局 |
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| 摘 要： | 南水北调工程竣工运用后，沿线河湖设计水位将普遍上升，原建水泵站运行时静扬程降低，使水泵运行效率下降，可能造成电动机过载，影响泵站的经济效益和安全运行。文章探讨了离心泵站以提高水泵效率为目的，采用车削叶轮调节水泵运行工作点的具体计算和实施方法。它适用于南水北调运用后水源水位抬升的离心泵站的技术改造，投资少，实施简便，效果好。
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| 关 键 词： | 南水北调 离心泵 车削 技术改造 叶轮 扬程 比转数 |
| 文章编号： | 1005-6254(2003)02-0022-03 |
Study on Impro ving the Turning Technique of the Former Pump Stations Along the South-to-north Water Transfer Project |
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| ZHANG Duo-feng,ZHAO Bing-feng,LIANG Qiu-sheng,CHANG Ya-li.Study on Impro ving the Turning Technique of the Former Pump Stations Along the South-to-north Water Transfer Project[J].Drainage and Irrigation Machinery,2003,21(2):22-24. |
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| Authors: | ZHANG Duo-feng ZHAO Bing-feng LIANG Qiu-sheng CHANG Ya-li |
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| Abstract: | With the south-to-north water transfer project completed, the design water levels of the rivers and lakes along its line will generally rise, and the net heads of the former pump stations will decline, which makes the pumps with lower efficiency, probably brings about the surcharge of the motors, and influences the economy benefits and safe operation of pump stations. In this paper, the method of specific calculation and implementation, with the aim to raise pumps efficiency for centrifugal pump stations through the use of turning impellers to adjust the workings points, has been researched. The method, which has many advantages such as less money investment, easy operation and good effects, is suitable for the technical innovations in those contrifugal pump stations on the condition that the water level will have risen by the time the transfer water from south-to-the-north project is put to use. |
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| Keywords: | Pump station Centrifugal pump Lift head Specific revolution Impeller Turning capability |
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