How ID Fan Draft Controlled INSTRUMENTATION POWER PLANT
In Thermal Power Plants we have Boiler in which we need to maintain the draft approx in between -10 to -15. So the question is how to control the draft?
The answer is we have Induced draft fan which suck out the flue gases and maintain the draft.
ID Fan blade pitch controls the draft. We have fix set point say -10mmWC. If the furnace pressure increases towards positive side the blade pitch will start opening and
if the furnace pressure goes towards negative pressure the blade pitch starts closing. This is how we control Furnace pressure.
Thank you
The answer is we have Induced draft fan which suck out the flue gases and maintain the draft.
ID Fan blade pitch controls the draft. We have fix set point say -10mmWC. If the furnace pressure increases towards positive side the blade pitch will start opening and
if the furnace pressure goes towards negative pressure the blade pitch starts closing. This is how we control Furnace pressure.
Thank you
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