Water Quality Research Program. Design and Operation of Axial Flow Pumps forReservoir Destratification

摘要

This report presents information on design considerations, construction,installation, and operation of axial flow pumps for either localized mixing or lake destratification. When used for localized mixing, the pump displaces the hypolimnetic water in the withdrawal zone of a low-level intake with epilimnetic water. When used for lake destratification, the pump moves the surface water downward to mix with the bottom water and eliminate thermal stratification. The pump consists of a frame, flotation platform, motor, gearbox, drive shaft, bearing, and a large-diameter propeller. An example of the design procedure used for destratification of Beech Fork Lake is given.