Why is the outlet of a waste heat boiler under negative pressure?
Thread Content
As the title suggests, does anyone know the reason? I would appreciate your guidance
Chimneys create negative pressure; the pressure drop resulting from flue gas desulfurization and denitration processes is generally very small, and the outlet remains at negative pressure
A negative pressure needs to be maintained inside the boiler furnace
The gases after combustion are hot; when they are discharged into the upper atmosphere through tall chimneys, the denser cold air enters the furnace, resulting in a negative pressure inside the furnace.
Behind the waste heat boiler, there is a chimney of a certain height that creates suction; once it reaches a certain height, negative pressure is generated. This is related to the height of the chimney, and it has a positive effect on the power generation by the smoke engine!
Temperature affects density, which in turn leads to density differences
After the catalytic unit, flue gas desulfurization is applied in all subsequent boilers