The impact of tower top shaking on the process
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Hello everyone. The project is located in the far northwest of the motherland, where the winds are particularly strong in winter. The distillation towers and adsorption towers shake violently, with the amplitude at the top reaching 20–30 centimeters. How can we ensure the stability of the process parameters? ASPEN, can you do an analysis?
The shaking of the tower should be reduced; otherwise, the liquid will flow to the side, which severely affects efficiency. Moreover, if the tower keeps shaking like this, what will happen if it breaks due to fatigue?
I haven’t measured how many centimeters the swing amplitude is at the top (it’s probably around 20 centimeters), but all the towers I’ve been on have some degree of swing amplitude, especially those with a smaller diameter. I think the swing amplitude should be considered in conjunction with the tower height; I wonder if other sailors agree?
It mainly depends on the top distributor. The effect of the uneven hair-like arrangement is significant; the static pressure slot-type distributor has a considerable influence. Shaking can lead to flow deviation, and this effect is more pronounced in the absence of wall flow rings. The taller the tower, the more important verticality becomes. Bias flow causes uneven distribution of the returning liquid, reducing contact between the rising gas and the liquid, which affects yield and quality
It’s definitely better to reduce the swinging; it’s impossible not to swing at all
Consult the manufacturer of tower internals to see if there are any good solutions