ALSTOM Karn Unit 1 Gland Steam/Turbine Retrofit

Owner Consumers Energy
Architect ALSTOM Power
Construction Manager ALSTOM Power
Design Build Mechanical icon Mechanical
Value of icon's Work $1,727,000

icon Mechanical utilized extensive pre-job planning and extensive shop fabrication to insure the Karn Unit 1 Gland Steam/Turbine Retrofit project was completed with the highest quality and customer satisfaction. The project scope included:

  • Pre-outage installation of gland steam pipe fabrication in tight areas around the low pressure turbine condensers.
  • Selective demolition of antiquated gland steam system.
  • Pre-fabrication of new gland steam valve station consisting of approximately 160 welds for high pressure steam. The station was fabricated on a shipping frame so the installation was completed with 6 tie-in welds reducing cost for the owner and valuable time during the outage.
  • Installation of a new gland steam condenser.
  • Installation of new access ways in the existing condensers walls for access to LP extraction lines and gland steam supply and return pipe work.
  • Installation of new stainless steel hood spray piping on the LP’s.
  • Removal and replacement of 16” extraction bellows in the LP condensers.
  • Installation of welded spools on LP extraction lines for reconnection of the lower turbine casings to existing plant piping.
  • Modifications to existing 2” thick turbine gland steam pedestals for installation of new gland steam supply and return piping.
  • Project completed to ASME B31.1 Power Piping Code, including complete weld map documentation and non-destructive evaluation.
  • 100% 16 gauge stainless steel cladding installed on all piping systems in the condensers for corrosion protection.