Abstract:Drainage pumping station and tidal sluice are the important flood control infrastructures of urban river entrance. Taking the engineering design of a drainage pumping station in Tianjin as an example, the function and operation mode of the pumping station are introduced in detail. The design flow of this pumping station is 25 m3/s, and six large pumps and two small pumps are reasonably set. The pumps are reasonably controlled to reduce the energy consumption. At the same time, fully combined with the drainage-into tank as irregular semidiurnal tide type, there are two low tide levels every day, the pumping station is installed of separate self-flow channels to effectively use the water level difference between the urban river level and the high and low tide levels of the external discharge tanks in order to realize the river self-discharge or pump strong discharge and to achieve the effect of energy-saving operation. This engineering example can provide some references for similar pumping stations.
