Solve the problem of insufficient water supply capacity at the end of the existing water network due to the increase in water consumption; solve the problem of standard water supply in urban districts; solve the problem of water pressure and water volume for direct water supply in the expanded and extended areas of the urban water supply network; solve the problem of integrated urban and rural water supply with the same water network, same water quality and same service; mid-way water transmission, highland water transmission, multi-source water supply, water regulation and storage pumping stations, self-built pumping stations in mines and large construction sites, etc.