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:
Boiler graphic installation Shock Pulse Generator Coal Fired Power Plant Rayong
Diagram positive development  exhaust gas inlet temperature due to Shock Pulse Generator
Control cabinet Shock Pulse Generator
Coal fired power plant Rayong