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To rectification tower, destilling tower for such equipment, pressure is a very important signal, because any change in reaction process are met,time reflects the change in pressure to go up. Also be to say, analyse pressure change pattern of the system correctly, have important sense to understanding the moving contrail of equipment.
With distillation process for, it is the boiling point that constituent differs in passing liquid compound the interaction force between element of poor, constituent will depart of mixture, this and pressure have the concern that does not divide. Not only such, the geometrical structure of destilling tower and fluid flow condition, also can find the pattern from inside pressure change. Because,be afore-mentioned at 2 o’clock, the proof pressure signal with sufficient ability is containing very substantial information, and it is about destilling tower feature, need is strengthened take seriously.