抽水灌溉工程规划中,有关节能方面需要研究的问题很多,本文就机组选型、灌区分区分级及渠系市置等几个方面的问题进行一些分析、研究。一、机组选型中的节能问题1.水源泵站选型工况与水泵工作点的选择由于水源水位变化,使得水泵工况随之而变,过去一般依设计扬程作为选泵依据,在有的文献中建议用中等年份灌溉期的平 There are many problems to be studied in the aspects of energy saving in the project planning of pumping irrigation. In this paper, some problems about the selection of units, the classification of irrigation districts and the market arrangement of canal system are analyzed and studied. First, the unit selection of energy-saving issues 1. Pumping station selection conditions and the choice of pump working point As the water level changes, making the pump conditions change, in the past generally based on the design of the pump as the basis for selection, there is a The literature suggests leveling with medium-term irrigation