Dresser Rand Steam Turbine Blades

Dresser Rand Steam Turbine Blades

Rotor Blade re-design within a challenging leadtime

In 2015, Maintenance Partners Belgium awarded Stork Turbo Blading for the supply of seven stages steam turbine rotor blades.

The blades were required for a project in which Maintenance Partners overhauled a Tuthill steam turbine rotor for a European customer in the chemical industry. The rotor, and especially the blades, suffered severe damage due to an error which led to the generator operating as a driver for a certain period of time.

Maintenance Partners accepted a challenging overall turnaround time for the project which in turn resulted in a similarly challenging lead time for supply of the blades by Stork Turbo Blading.

Stork Turbo Blading supplied all seven rows of blades within the agreed timeframe, where stages six and seven needed a partial redesign. Therefore, responsive and immediate communication between the two companies ensured that the whole project was a success from start to finish.

Scope

Customer  Maintenance Partners Belgium NV
Country  Belgium
Customer Type Independant Service Provider (ISP)
OEM / Machine Type Tuthill (Dresser-Rand)
Output (MW) 11
Project Type  Reverse Engineering & Manufacturing
Project Lead Time  12 Weeks
Product  Rotor Blades Stages 01-07
Material(s) X22CrMoV12-1 (W-no. 1.4923)

Facts

  • Re-design of stages six and seven in close co-operation with customer.
  • Re-design for all blades, closing blades & pieces and counter-balance parts.
  • Brazed Stellite Grade six erosion shield replaced by laser hardening.
Severely damaged stage six Severely damaged stage seven
Newly manufactured and assembled stage six Rotor overview with newly manufactured blades fitted
Rotor overview with newly manufactured blades fitted

 

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