How to determine the outlet diameter of the desulfurization tower
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How is the diameter at the outlet of the desulfurization tower determined? Some companies set it to be slightly smaller than the diameter at the flue gas inlet. Is there a specific calculation formula for this? But I think that if exports are less than imports, the velocity of the flue gas will increase, which will carry away moisture and raise the humidity level of the flue gas; please share your opinions more
Exports are slightly smaller than imports, but not by too much; that’s generally the case. I don’t know exactly how it’s calculated either – everything I’ve seen has been like that
I haven’t seen any formulas indicating that the flow velocity of the smoke stream will increase, but that the moisture content necessarily increases as well. It depends on the performance of your defogger and its installation location. Last edited by twy9 on 2007-12-14 23:12]
The size of the outlet should be determined by taking into account both the wind speed and the negative pressure in the boiler’s furnace! The prerequisite is that the water content must be less than 8%
How exactly should it be determined?
Personally, I think the intake speed is equal to the exhaust speed! As for the export being less than the import, it is because after wet flue gas desulfurization, the volume of the flue gas is smaller than that before it enters the tower; this is done to maintain the flue gas velocity at the outlet. :loveliness:
The outlet of the desulfurization absorption tower is smaller than the inlet because the volume of the flue gas at the outlet is less than that at the inlet; generally, the flue gas flow rate is controlled to be no more than 15 m/s. Furthermore, the outlet width of the absorption tower generally accounts for 2/3 to 3/4 of the tower’s diameter, mainly to improve the demisting efficiency of the demister and reduce the height of the absorption tower barrel downstream of the demister. This post was last edited by znj1989327 on 2007-12-25 09:24]
The outlet diameter of the desulfurization tower is determined based on the gas flow velocity; the calculation takes into account the total amount of gas at the inlet plus the gas resulting from water vapor evaporation within the desulfurization tower, in order to determine the flow velocity at the chimney and thus decide on the appropriate diameter