What Can a D11 HP/IP Steam Path Upgrade Do for You?
A cost-effective alternative to full section replacement in cases where HP/IP shell condition is not a concern, this upgrade delivers up to a 1.5 percent increase in steam turbine output (in the same bottoming cycle) through the recovery of aging losses and improved technology.
Major components include a new bucketed rotor, improved diaphragms, and modern N2 packing head. These components fit in the existing HP/IP shell, and the upgrade can be installed within the normal cycle of a major maintenance outage. This solution is available for D11 steam turbines operating at 60 Hz.
- Offers advanced singlet high efficiency diaphragms
- Includes integral covered buckets
- Enhances sealing features, including abradable coatings and brush seals
- Accommodates uprate of the combined-cycle plant with certain designs