1. “V” MACHINE PROBLEMS & SOLUTIONS
August 2010

2. COMPONENT SOLUTIONS Inner Casing & Assembly Components Dome Plates
Burner Bezel Rings
Combustion Tiles
Gas Distributors
Premix Swirlers
Tile Support Rings

3. INNER CASING PROBLEMS Inner Barrel Cracking
Fretting Of Radiation Liner Spacer Disks
Inlet Fretting From Elbow Transition Rings
Cracking Near Inlet Bowl
Cracking At Radiation Liner Pins
Centering Pin Boss Fretting
Casing / Inlet Bowl Finger Wear
K-Ring Wear
1st Stage Vane Seal Ring Wear

4. INNER CASING SOLUTIONS
Finite Element Analysis
Chrome Carbide Coating At Wear Points
Radiation Liner Spacer Disks, Upgraded Material
Spacer Disks Welded To Pins – Eliminate Fretting
Inner Barrel Flange Relocation and Redesign
Inner Barrel Cooling Air Bypass
Inner Barrel Material Upgrade
Inner Barrel Forged Flange
Thermal Barrier Coating
Vane Seal Ring Material Upgrade
Radiation Liner Modification

5. INNER CASING SOLUTIONS

6. INNER CASING SOLUTIONS
Inner Barrel Stresses Eliminated!
Many V84.2 and V94.2 New Design In Service!

7. INNER CASING SOLUTIONS

8. INNER CASING SOLUTIONS

9. INNER CASING SOLUTIONS

10. INNER CASING SOLUTIONS

11. INNER CASING SOLUTIONS
Old Style Vs. New Style Bowl Ring

12. DOME PLATE SOLUTIONS Severe Fretting & Distortion
Refurbish and Replacement Options
Upgrade Material To Haynes 230
Apply Thermal Barrier Coating To Reduce Metal Temperature
Wear Resistant Coatings To Eliminate Fretting Damage

13. BURNER BEZEL RING SOLUTIONS
Severe Cracking & Fretting Damage
Refurbish and Replacement Options
Repairs – Machine, Overlay, Re-Machine
New From Upgrade Material
Design Improvements – Add Cooling Air Slots
Add Thermal Barrier Coating

14. BURNER BEZEL RING SOLUTIONS
Design Improvements
Addition of Cooling Air To Flange
Addition Of TBC

15. COMBUSTION TILE SOLUTIONS
Severe Oxidation & Cracking
Refurbish & Alloy Rejuvenation
Weld Repair, Re-machine Edges & EDM Re-cut Locking Feature
Add Thermal Barrier Coating !!

16. COMBUSTION TILE SOLUTIONS
Major Combustor Improvements!!!

17. GAS DISTRIBUTOR SOLUTIONS
Severe Fretting & Corrosion Damage
Weld Repairs
Replace Pipe Work
Corrosion Control Coatings

18. PREMIX SWIRLER SOLUTIONS
Severe Fretting & Corrosion Damage
Overlay Weld & Re-Machine Features
Manufacture New Airfoils & Fasteners
Upgrade With 5380DP Coating

19. TILE SUPPORT RING SOLUTIONS
Severe Oxidation & Fretting Damage
Material Upgrade
Oxidation-Resistant Coating
Hard-Facing For Wear Protection

20. We Look Forward To Working With You In The Future!!
Genex Turbine Technologies can refurbish, manufacture and provide tested and PROVEN modifications to your Siemens “V” components.
We Look Forward To Working With You In The Future!!