Why is the combustion furnace at positive pressure?
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Why is the sulfur production combustion furnace at slightly positive pressure? Is the exhaust incinerator under negative pressure?
This is designed in such a way that the air velocity in the combustion furnace is kept within a certain range, thereby ensuring an appropriate residence time; therefore, only positive pressure can exist. If negative pressure is applied, the residence time will not be sufficient. You can also study the effects of changes in tube diameter
Do you mean the components inside the furnace?
Maintaining a slight positive pressure in the sulfur production furnace is done to ensure the continuity of the process. If there were a negative pressure, all the subsequent equipment would need an even lower pressure in order to function properly; therefore, a slight positive pressure is a more reasonable approach Is negative pressure still reasonable? The negative pressure in the incinerator is mainly due to the direct connection of the rear part to the chimney; the chimney discharges smoke directly into the atmosphere, and its height creates a certain level of negative pressure.
This delivery system operates under slight positive pressure; the combustion furnace provides the power for the entire setup. If there is negative pressure in the combustion furnace, how can the process gases move backward?