Newbie’s question: Definitions and differences between inducing wind and blowing wind
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Newbie seeking help: I’d like to know how the exhaust system and the blower system of a boiler function separately Are there any pictures? What are the functions of induced draft and forced draft? Don’t laugh at me; I wasn’t originally trained to work with boilers. Now that I’ve switched to this field, I really need to learn about it! Thank you!
The blower is part of the air system and its function is to overcome the resistance to air entering the furnace. The induced draft fan is part of the flue gas system; its function is to overcome the resistance encountered by the flue gas as it moves from the furnace to the chimney
The pressure at the blower outlet is several kPa, while the pressure at the induced draft fan inlet is negative several kPa.
The purpose of the boiler’s blower is to ensure an adequate excess of air for fuel combustion; today, large power station boilers are all coal powder boilers, which use blowers to spray coal powder for combustion. A blower, also known as an air supply fan, is essentially used to supply air to boilers. The exhaust fan is needed to remove the smoke; at the same time, it also creates the negative pressure required in the combustion chamber of the boiler itself
The function of the blower is to force air into the boiler to aid combustion, while the exhaust fan is used to draw out the hot smoke generated by combustion from the furnace
The device that draws in air is called an exhaust fan, while the one that blows air out is called a blower. Normally, exhaust fans and blowers are designed differently, with their blade angles varying. The blower is generally located at the inlet end of the system and operates under positive pressure ； The exhaust fan is located at the outlet end of the system and operates under positive and negative pressure conditions.
Thank you, I’ll take it! Thank you all!
The import and export pressure can be adjusted according to actual conditions
The exhaust system is located behind the boiler system; it is used for expelling smoke and regulating the pressure inside the furnace, while the blower is primarily used for combustion