水利水电技术（中英文）

为实施引黄济青工程王道泵站优化运行提供准确的性能资料，采用现场实测与理论计算的方法，计算泵站主机组、辅助设备各部分的能量损失和泵站全系统效率，讨论系统各部分能耗占比，分析系统效率特性及其影响因素。结果表明：王道泵站在2.65 m设计工况下正常运行4台机组时，泵装置损耗功率、冷却系统能耗、主电机损耗功率、齿轮箱损耗功率和润滑水系统能耗较大，分别占总能耗的21.97%、5.27%、4.70%、3.49%和2.55%,由此确定泵站系统节能途径；泵站主机组运行台数一定时，系统效率随泵站扬程变化规律与泵装置效率类似，但始终低于泵装置效率。泵站4台机组全部运行，在泵站设计工况下，系统效率可达61.63%,但在0.4 m特低扬程下，系统效率仅为24.37%;泵站扬程一定时，系统效率随主机组运行台数增加而增大。设计扬程下，主机组运行1、2、3、4台时的系统效率分别为55.86%、59.75%、61.17%、61.63%。研究成果可为泵站工程规划设计、改造和运行管理提供参考，节省工程运行费用。

In order to provide accurate performance data for the optimal operation of Wangdao pumping station in water diversion project from Yellow River to Qingdao, the energy loss of each part of the main unit and auxiliary equipment of the pumping station and the efficiency of the whole system of the pumping station were calculated by using the method of field measurement and theoretical calculation. The energy consumption ratio of each part of the system was discussed, and the efficiency characteristics and influencing factors of the system were analyzed. The result showed that when the Wangdao pumping station normally operated four units under the 2.65 m design condition, the pump unit loss power, cooling system energy consumption, main motor loss power, gearbox loss power and lubricating water system energy consumption were large, accounting for 21.97%, 5.27%, 4.70%, 3.49% and 2.55% of the total energy consumption, so the energy-saving way of the pump station system was determined; When the number of main units in the pump station is fixed, the variation of system efficiency with pump head is similar to that of the pump unit, but it is always lower than that of the pump unit. Under the design condition of the pumping station, the system efficiency can reach 61.63%, but under the 0.4 m ultra-low head, the system efficiency is only 24.37%; When the pump head is fixed, the system efficiency increases with the increase of the number of main units. Under the design head, the system efficiency of 1, 2, 3 and 4 sets of main engine groups is 55.86%, 59.75%, 61.17% and 61.63% respectively. The research result can provide reference for the planning, design, transformation and operation management of the pump station project, and save the operation cost of the project.