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Francis turbine generator understand
Author: source: date: 2018-11-27 13:45:15
The water flows radially into the runner from all around, and then out of the runner approximately axial. The runner is composed of the upper crown, the lower ring and the blade.
Francis turbine is widely used in water head (about 20-700m), simple structure, stable operation and high efficiency, is the most widely used modern turbine.
Francis turbine is widely used in the world because of its compact structure, high efficiency and wide head range.One of the types of hydraulic turbines.
When water flows through the turbine working wheel, it enters radially and flows out axial, so it is also called radial axial flow turbine.
Francis turbine is also known as the Francis turbine, the flow of water from all around the radial flow into the runner, and then approximate axial flow out of the runner,
the runner consists of the upper crown, lower ring and blade.
It is suitable for the range of water head from 20 meters to 700 meters, simple mechanism, stable operation, and high efficiency, but it is generally used in the range of intermediate
water head (50 meters to 400 meters). The output of single aircraft ranges from dozens of kilowatts to tens of thousands of watts. At present, the maximum output of this turbine
has exceeded 700 thousand kilowatts. It is one of the most widely used hydraulic .
1. Francis turbine has the advantages of compact structure,hight efficiency,can adapt to a wide range of water head of turbine types,is one of the widely used around the world.
2. When the water folw through the tuibine wheel,it folws into,axial to radial,so it is also called the radial axial flow turbine;
3. Francis turbine is also called the Francis turbine,the flow from the surrounding radial inflow runner,then approximate axial flow runner,runner by the crown,under the ring and the blade;
4. It is applicable to the head from a range of 20 metersos up to 700meters,has the advantages os simple structure,stable operation,and high efficiency,but it is generally used in the range(50 to 400 meters).Simple power from a few KW to several 101000 tile.At present,the turbine output has exceeded 700000 kilowaats, the maximum.A turbine is one of most widely usede.