Challenge
Repair of Steam Turbine and adapt the blading to lower steam parameters enabling low load operation
Solution
- Aerodynamic optimization of blade path
- Recalculation of valve sequencing
- Design, manufacture and installation of blading and blade carrier in existing machine
- Installation of new digital turbine governor including backpressure control
- Commissioning and governor optimization
Benefits
- Operating parameters successfully modified from 540°C, 18-37 bar (hot reheat of main turbine) to 320°C 20-40 bar (cold reheat of main turbine), 20-120t/h
- Successful commissioning of installation
