|Turbine Type:||Francis Hydro Turbine||Structure:||Horizontal/Vertical Shaft|
|Application:||Hydropower Station, Grid-tie Power System, Electricity Generation||Water Head:||10-300m|
|Runner Material:||Stainless Steel (0Cr13Ni4Mo, CA6NM)||Guide Vanes:||Stainless Steel (0Cr13Ni4Mo, CA6NM)|
|Spiral Case:||Welded Carbon Steel (Q345B, ASTM Gr.B, S335J0)||Draft Tube:||Welded Carbon Steel (Q345B, ASTM Gr.B, S335J0)|
Horizontal Shaft Francis Hydro Turbine,
Stainless Steel Francis Water Turbine,
20MW Francis Water Turbine
Francis Hydro Turbine / Francis Water Turbine for Capacity below 20MW Hydropower Project
|Type||Horizontal/vertical Francis turbine|
|Water head||10 m -- 300 m.|
|Installation capacity||0.1MW -- 20MW|
|Runner material||Stainless steel (0Cr13Ni4Mo)|
|Generator type||synchro generator|
Governor, Inlet Valve, unit side panel, excitation system
1. Water head: 10 m -- 300 m
2. Power: 0.1MW -- 30MW
3. Frequency: 50/ 60hz
4. Output Type: 0.4KV, 3.3KV, 6.3KV, or 10.5KV AC three-phase,
If you are interested in the Small Francis turbine, you should send some key parameters (such as net head, flow discharge, unit number, frequency, voltage) in inquiry.
Normally, Medium size and larger Francis turbines are most often arranged with a vertical shaft, Small Francis turbine always arranged with horizontal shaft, but it is not absolute.
The Francis type turbine is mostly suitable for hydropower stations with medium or high head from 10 m to 300 m. They are in both vertical or horizontal shaft arrangement and could be vastly selected by the hydraulic power stations.
lt's feature is that the water flow enters the runner inward in a radial direction, changes direction gradually and then passes out axially. Francis turbine is characterized by reliable operation, simple construction and high efficiency, etc.
Normally, we adopt the horizontal Francis with capacity below 5MW, runner diameter below 90 cm. And the vertical Francis with capacity below 20MW.
Main Structure of Francis Hydro Turbine
This hydraulic turbine is Francis with horizontal axis. The intake valve is installed in front of the turbine screw housing. When the turbine is observed from the generator end, the rotating direction of the turbine is clockwise. The turbine is a horizontal shaft, a metal spiral shell and a stainless steel runner. The unit has two bearings, which are installed on the generator base. The main structure of the turbine is as follows:
(1) Spiral case, inlet pipe (2) Distributors, guide vanes, wicket gate (3) Rotating parts, runner, shaft (4)Shaft sealing 5) Draft tube 6) Layout of water, instruments and pipelines.
Water flows through the penstock pipe, butterfly valve, expansion pipe, water inlet pipe, spiral case and wicket gate, enters the runner, the water potential energy drives the runner to rotate and convert hydraulic energy into mechanical energy, and drives the turbine main shaft to rotate the force of the generator rotor, thus converting mechanical energy into electrical energy.
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