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针对目前水厂送水泵站无法按吨水电耗和运行效率等经济指标进行设计的问题,对水厂送水泵站整体电耗的三个因素(流量、扬程和运行效率)进行分析,指出利用调速和单闭环反馈控制可以解决富余流量和富余扬程造成的电能浪费,但对于因为效率偏差造成的电能浪费则无能为力,利用泵站目标电耗技术可以解决效率偏差问题,泵站目标电耗技术同时可以给出泵站的最低电耗值、整体最高运行效率和每度电产水量,利用泵站目标电耗的这一特点,将其应用到泵站经济指标设计中来,设计出可预知最低电耗的高能效泵站。经实际工程案例验证,该措施达到了预期节能效果。
Aiming at the problem that water supply pumping station can not be designed according to economic indicators such as water consumption and operating efficiency, the three factors (flow rate, lift and operating efficiency) of water supply pump station are analyzed. It is pointed out that utilization Speed and single closed-loop feedback control can solve the waste flow caused by surplus flow and surplus head, but it can not do the power waste due to the efficiency deviation. Using the target power consumption technology of pump station can solve the problem of efficiency deviation. Can give the lowest power consumption of the pump station, the overall maximum operating efficiency and electricity per unit of water production, the use of the target power consumption of the pumping station this feature will be applied to the design of pumping station economic indicators to design a predictable minimum Energy efficient pumping station. The actual project case validation, the measure reached the expected energy saving effect.