dewa projects & engineering (generation) instrumentation...
TRANSCRIPT
DEWA
Projects & Engineering (Generation)
Instrumentation &Control
HRSG
Presented By
Mohamed J. Albahar
15912
• Main Systems
• Gas fuel supply system
• WHRB supplementary firing system
• WHRB water and steam system
• WHRB Drain and vents system
• Condensate and feed water system
• Auxiliary steam and distribution system
• Service and instrument air system
Supplementary Firing System
& Burner Management System
• Fuel Gas to Burners
• Fuel Gas to Igniters
• Cooling Air
• Burners
• Scanners
Water & Steam System
• Deaerator
• Feed water tank
• Pumps
• Economizer
• Flow Control Valve
• Boiler Drum
• Evaporator
• Superheater
• Desuperheater
Miscellaneous
• Drains and vents
• Blowdown System
• Sampling system
• Nitrogen system
• Chemical dosing system
• Instrument air service
Start-up Sequence
• Diverter Damper is ready to operate
• Purging
• Supplementary Firing Control valve is ready to operate
• Flame detectors are ready to operate
• Feed water pump and control valve are ready to operate
• All boiler inlet valves are ready to operate
• Blow dawn is ready to operate
• No condensate water at the superheater drain
• GT is at 20 MW and flue gas temp is less than 360 Celsius
Trip
• GT Trip
• The Boiler’s protection (Level, Temp, Pressure)
• Feed pump trip
• ACCCW Trip
• Cooling Fan Trip
• Steam or BPST Trip
Conclusion
The Outcome
HRSG System
Main and auxiliary systems
Instrumentation and components
Reading and Analysing P & I Diagrams
Thanks for your attention
Any Questions