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.
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]. 排灌机械工程学报, 2003, 21(2): 22-24.
ZHANG Duo-feng, ZHAO Bing-feng, LIANG Qiu-sheng, CHANG Ya-li. Study on Improving the Turning Technique of the Former Pump Stations Along the South-to-north Water Transfer Project. Journal of Drainage and Irrigation Machinery Engin, 2003, 21(2): 22-24.
