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: