1. HIGH
PERFORMANCE
LEVEL
CONTROL

3. Max temperature in the Boiler Room is now 60°C

4. CONTROL PHILOSOPHY

5. PUMP PERFORMANCE IN LEVEL CONTROL
Sensor range
Cavitation
Static pressure
Min. speed

6. Level control Tank shape 20 t steam/h with 2,5 m3 water volume
Basic control:
Tank size is defined by inlet and discharge flow – how long time it will take to fill or drain the tank by the attached pump and valve.
Time = Tank volume/Flow
[sec = m3/(m3/sec)]
20 t steam/h with 18 m3 water volume
Fast reacting - Low sensitivity
Tank size:
A large tank provides stability - it will fill
and empty slowly.
A large tank can be
used as storage
Slow reacting - High sensitivity

7. BOILER FEEDING ON/OFF CONTROL
Control box
Deaerator
Burner
Boiler
Feed pumps

8. BOILER FEED VIA FEED VALVE
Bypass
Deaerator
Burner
Boiler
Feed pumps
Feed valve

9. DIRECT BOILER FEED
Deaerator
Burner
Boiler
Feed pumps

10. TAILOR MADE PUMP CURVES

11. THANK YOU