由于长距离、高扬程供水和大城市分区供水的需要,采用多级水泵站串联的输水工程越来越多。因此,如何使多级泵站安全可靠,经济有效地运行,已引起国内外学者的重视。最近日本学者有这样的论述:“现有长距离送水管道,在设中途泵站时,多在中途泵站前设置大容量贮水池。为稳定水池水位,在进水管端设置活门控制。这样上游水泵,就要考虑这部分压降而消耗电能。因 Due to the need for long distances, high lift water supply, and zoning water supply in large cities, more and more water distribution projects using multi-stage pumping stations are in series. Therefore, how to make the multi-stage pumping station safe, reliable, and economically efficient has attracted the attention of scholars at home and abroad. Recently, Japanese scholars have argued that: “In the existing long-distance water supply pipelines, large-capacity storage tanks are installed in front of the midway pumping stations when setting up midway pumping stations. In order to stabilize the water level in the pool, trap valves are set at the inlet end. For a water pump, it is necessary to consider this part of the pressure drop and consume electrical energy.