MECONTROL Systems MECONTROL Air. Presentation. Our Target: Reliable Drift Free Measurement with low maintenance, high accuracy. MECON TROL Air. Steam generator. Air preheater. Burner. Primary air. Secondary air. Electric precipitator . Flue gas. Coal bunker. Pulverized. fuel.
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Reliable Drift Free Measurement
low maintenance, high accuracy
Accuracy in short pipe sections?
Flow straighteners (delta P loss)?
2 sensors (antennas)
Main plant data: (2 x 600 MW), erected 2003/2004
24 burners, double wall fired:
-windbox secondary air system,
-core air system with short duct runs,
-primary dirty air per burner.
- short inlet sections of secondary air
- downstream flap dampers
- air stratification in ducts
extremely short measurement sections
Installation of MECONTROL Air measurement:
main core air duct individual burner core air
Air flow balance:
for proof of plausibility
plant demanded a balance
to be made of main duct
measurements versus indi-
vidual core air measurement
at each burner.
measurement of dirty air flow in indivual burner lines
subtraction of steam.
the secondary air windbox causes main air imbalance
31 32 33 34 35 36
Coal mill at Vattenfall Europe: Power Station Reuter West/Berlin
Actual data from: September 2005
Reference: Mr. Thorsten Thimme
Over 200 installed
Temperatures up to 2000o F
RWE/Rheinbraun KW Niederaußem Unit A,Bergh.2004 Retrofit of 32 measurement locations including primary and secondary air flows
Southern Company 2005 Retrofit of exhaust gas measurement at 1000 oC and 25 bar pressure in refractory lined coal gasifier
Steag/Isken Power Station Iskenderun, 2005 16 Measurements of secondary air as well as 6 measurements of coal flow and primary air for better Air balancing
measurement of 40 locations secondary as well as primary air flow