Coal Fired Power Plant Gheco One, Rayong

Boiler Data

• 660 MWe, supercritical boiler
• 2079 t/h steam flow, 243 bar, 568°C
• Fuel: Sub-bituminous coal
• 3rd pass width 24.4 m
• 4 x Shock Pulse Generator TwinL at 3rd pass
  commissioned 04/2018
• Shock Pulse IntervaI: 1h / TwinL
• SPGs operate in addition to existing sootblowers by
  cleaning the third pass with primary reheater,
  primary superheater and economizer
• 2nd phase, additional 4xTwinL were commissioned
  11/2019 for further cleaning optimization and
  reduction of steam sootblowing.

Improvement of the Cleaning Process

• Very good cleaning effect by significant reduction of
  fouling in 3rd pass
• Reduced flue gas temperature at exit of Economizer
  to 380 °C; equivalent after the 2nd phase
• Before: Intermediate manual cleaning on
  monthly basis
• Plant supplier: Doosan Heavy Industries
• Plant operator: Gheco-One Company Limited
• Homepage: www.gscgroup.com