Openings large-diameter nozzle

In large-diameter packed colxunns where I-beams support the packing support plate, a larger space between the reboiler return nozzle and the packing support plate may be required. The prime consideration here is allowing sufficient open area between the bottom of the beam and the high liquid level for adequate vapor distribution. Detailed discussion is in Sec. 8.2. 

Orifice The orifice is the exit opening in a flow cell or nozzle. Its diameter can, in general, range from 50 to 300 pm. Cells or aggregates of cells anywhere near as large as the orifice will block it. The diameter of the orifice affects the possible drop frequencies for flow sorting. 

Large openings calculated by this procedure are limited to openings less than 70% of the vessel diameter. Tliere are four cases that can be solved for, depending on your nozzle geometry. 

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