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Experience of Retrofit
Advanced Technology for Steam Turbine Rehabilitation
Typical Repair for Steam Turbine
Super Rotor Package for Geothermal Turbine
Coating to Turbine Rotor
Anti-corrosion Coating on Nozzle Diaphragm
Replaceable L-shape Nozzle Packing
Anti-erosion Seal Plate/Inlay of Diaphragm and Casing
Preventive Maintenance of Major Steam Valves
Condenser Rehabilitation
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Rehabilitation and Repairing
Super Rotor Package for Geothermal Turbine
What is "Super Rotor"?
Super Rotor Package is the special package for geothermal turbine including latest advanced technologies. It realizes the following benefit;
Increase of generator output
Life Extension
Efficiency Improvement
Higher Reliability
Better Maintainability
Experience
>
Geothermal Power in USA (GEYSERS)
Latest Technology Applied to Super Rotor Package
Item
Expected Failure
Improved Design
Rotor Shaft
- Erosion in the packing area
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Coating packing area
Wheel
- SCC (Stress Corrosion Crack)
- Erosion in balance grooves
- Titanium blades
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Coating
- Improved groove
Blades
- Corrosion on airfoils
- Erosion at tenons and shrouds
- Corrosion fatigue cracking
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Snubber Blades
- Titanium Blades
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New Last Stage Blade
Nozzles
- Erosion at nozzle partitions
- Erosion at tip fins
- Erosion in nozzle packing
- Coated Nozzle Partitions
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Flat tip nozzle & finned sunubber blades
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Replacable L-Shape Stainless packing
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Anti-erosion seal plate
Comparison of Super Rotor with Conventional Design
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