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English Translations » 【塔/精馏圈】 » How is the inlet pressure of the bottom pump in a negative-p

How is the inlet pressure of the bottom pump in a negative-pressure distillation column calculated?

2021-08-30View Original

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How is the inlet pressure of the bottom pump in a negative-pressure distillation column calculated? In a normally operating system, the pressure is equal to the liquid surface pressure plus the hydrostatic pressure of the liquid column minus the pipeline losses. As for a negative-pressure system, the gas phase pressure at the bottom of the tower in the diagram is around -96 kPa. Thank you for your explanation.
Reply #22021-08-31
Like in the case of positive pressure, the formula is not restricted to being used only with positive pressure
Reply #32021-08-31
The algorithm is the same; it’s just that the liquid surface pressure needs to be negative.

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Translated at 2026-07-26 09:11:37

Original: https://bbs.hcbbs.com/thread-3250886-1-1.html

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