Double-click turbine introduction

Double-click turbine introduction

Double-Click Turbine In terms of its principle, it is between the counter-turbine turbine and the impact turbine (the flow of water is flowing as the water flows through the blade for the first time). After the water flows out of the nozzle through the water conduit, the radial vane enters the center of the runner from the outer circumference of the runner, after the first energy exchange (about 70% of the total conversion energy), and then passes through the radial blade from the center of the runner. Flow out of the runner to complete the second energy exchange.

The double-click turbine water flow first enters part of the blade flow path from the outer periphery of the runner, consumes about 70%-80% of kinetic energy, then leaves the blade path, passes through the space of the center part of the runner, and once again enters the other part of the runner. The remaining kinetic energy is about 20%-30%. This type of turbine is low in efficiency and is generally suitable for small hydropower stations with H < 60 m and N < 150 kW.