Wind pressure of the fan in the exhaust gas absorption unit
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Dear experts, I would like to ask about the absorption of chlorine gas emissions – specifically, what wind pressure should be used for the fans? For the two-stage alkaline washing process, with towers that are about 8 meters high, what wind pressure is required for the fans?
A normal negative pressure of -0.2 to 0.3 kPa is sufficient
It is necessary to calculate the pressure loss in the secondary alkali scrubber tower; for normal gases, this value should not exceed 5 KPa.
Well, that depends on your washing volume, the diameter of the distribution pipe holes, and the installation height of the pipes
If it is only a blank tower alkali washing, the pressure loss is very low, generally not exceeding 500 Pa; however, when selecting the fan head pressure, it is necessary to take into account the entire system.
An outlet pressure of 50-100 Pa is sufficient; it depends on the pressure loss
The tower pressure drop needs to be calculated; roughly, 1500–1800 Pa should be sufficient
4500pa–5500pa; the specific value depends on the diameter of the tower and the resistance inside it, but this range is generally sufficient