Frame 7E/EA

Frame 7E/EA Service and Product Offerings provide improved durability and lower life cycle costs

Frame 7E/EA

Ansaldo Energia's OSPTM team (Other Original Equipment Manufacturer Service Provider)  has been supplying Fr7B, 7E & 7EA hot gas path buckets and shrouds since 1999.  In 2014 we introduced the full turbine nozzle range to our product offering as well as supply compressor hardware.  Improved durability and lower life cycle cost is achieved using our component and system level product modeling and data evaluation tools, to identify the issues and failure modes in current OEM designs.

The OSPTM team manufacturersall buckets, nozzles and shroud blocks to be compatible with the latest 2055F firing temperature machines (Engine Model 7121) and are also backwards compatible down to and including the 7B engines.  In normal operation the entire hot gas path has a minimum service interval of 24000 FFH or 1200 FS, which can be increased on a unit by unit basis, with consultation from our experts.

We offer worldwide support of equipment including TFA; full field support from turbine to generator, and for combined cycle facilities; engineering assessments; rotor lifetime extensions; component and rotor reconditioning; long term customizable service agreements covering clients' Frame 7B through 7EA units and related rotating equipment.


OSP Engineered Parts – Proven Engineered design changes for enhanced performance


Combustion
Major environmental concerns make reducing emission levels a priority for the whole industry. We have developed a number of alternative systems that do just that. As a result, we have broken numerous emission records with our dry low NOx systems. Simply by installing this system to replace conventional combustion in turbines will make a major impact on CO and NOx levels in the environment.

Combustion Liners, Fuel Nozzles, Transition Pieces

  •  LEC-III®, LEC - Next Gen, and T-DLN
    • Ultra Low Emissions, as low as sub 4ppm, are achievable with the LEC-III® Combustion System.
    • LEC NextGen is drop-in compatible with OEM DLN-1 as a cost-conscious alternative with 9ppm Nox and dual fuel capability
    • T-DLN is a Thomassen-design for the dry low NOx system that is based on, and backwards compatible with, the OEM DLN-system.
  • Digitization and Controls
  • Fuel Flexibility
  • FlameSheet™

 

Hot Gas Path

1st Stage Buckets

  • Improved cooling through 12 radial stem drilled airfoil cooling holes

2nd Stage Buckets

  • Scalloped tip shroud for improved creep resistance
  • Increased tip shroud contact face area mitigates shingling
  • Compatible with and without shroud block honeycomb

3rd Stage Buckets

  • Increased tip shroud contact face area mitigates shingling

1st, 2nd, and 3rd Stage Nozzles and Shrouds

  • Equivalent to OEM
  • Optional NiCoCrAlY & TBC Coatings

Frame 7E Catalog

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