YOKOGAWA ZR22G

4-2
All Rights Reserved. Copyright © 2004, Yokogawa Electric Corporation
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TI 11M12A01-01E
4. Applications
b) Power generation boiler (Heavy oil, Gas)
This is a large-scale facility in which use for combustion control is more common than for combus-
tion monitoring.
In cogeneration, the majority of cases involve measurement at a single point. In electric power
companies, measurements are performed at multiple points in a single flue.
Sample point System type
T0402.EPS
ObjectiveDetector
Boiler furnace outlet or
economizer outlet
L2, L3 D1, (D2)
Combustion monitoring
O
2
control
Heavy Oil
Gas
Forced Draft Fan
Air Preheater
Electric Precipitator
Fuel Pump
Economizer
Reheater
High Pressure Steam
Medium Pressure Steam
F0402.EPS
Power generation boiler
Temperature: 250 to 350°C
Pressure: –0.1 to –0.8 kPa
Dust: ⬉1 g/Nm
3
Fuel: Heavy oil (crude), gas
May 31,2004-00