The sump at the bottom of the cooling tower is cancelled, and the cooled circulating water is collected through the sump erected at the bottom of the packing and directly led to the suction port of the water pump. This technology can greatly reduce the head of the pump, thereby reducing the energy consumption of the pump. At the same time, the spray water is intercepted and collected by the water collecting inclined plate, and the falling drop is reduced, which can greatly reduce the noise of the water spray.

High-level water collection is generally used for large-scale natural ventilation cooling towers. Although the initial investment includes higher equipment costs and civil construction costs, the cost can be recovered within a few years by saving high electricity bills.