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Furnace negative pressure

2009-11-10View Original

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Is there any relationship between the furnace negative pressure fluctuation and the induced draft fan inlet negative pressure?
Reply #22009-11-11
The inlet pressure of our induced draft fan used to be about -400. The furnace negative pressure fluctuates between 10 and 10. Now the induced draft fan inlet pressure is around -500 and fluctuates between 15 and 20. May I ask why?
Reply #32009-11-14
There is a certain relationship between the furnace negative pressure fluctuation and the induced draft fan inlet negative pressure, but it is not completely linear. It is closely related to the load, flue resistance, boiler air leakage, etc.
Reply #42009-11-17
If the induced draft fan is not frequency-controlled, it does not matter much. It depends on the raw materials you burn and the feeding speed. If the flue gas is generated too quickly, the furnace negative pressure will fluctuate. In addition, the flue should be cleaned regularly.

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Translated at 2026-07-26 18:01:29

Original: https://bbs.hcbbs.com/thread-570339-1-1.html

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