Simulation Study on Pressure Regulation and Water Age Optimization of Water Supply Systems in Residential Area
In order to further improve the water supply quality and reduce the energy consumption of the water supply pipeline network in residential areas,a simulation of the water supply pipeline network in an old residential commu-nity in Shanghai was conducted.Based on the current layout of the water supply pipeline network,two schemes of pipe diameter and pipeline optimization were proposed to optimize the water age,the hydraulic conditions of water age,water pressure and water quality were compared.On the basis of pipeline optimization,the impact of tree-shaped and loop-shaped pipeline networks on water quality was further explored.As for the issues of high energy consumption,the residential area pump station operation was proposed to be optimized,the water pressure stability and energy consumption were compared between constant pressure operation with partial time setting pressure oper-ation to determine the most suitable operating mode for pump stationsin residential areas.According to the results of simulation,it is determined that variable pipe diameters should be adopted for water age optimization,which can improve the water quality and stability of the water supply pipeline network;That operation of constant pressure and pressure reduction should be operated in the pump stations,which can lower the operational difficulties and achieve carbon emission reduction goals while reducing energy consumption.
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