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2020-06-20View Original

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This post was last edited by wx_             on 2023-3-16 03:41,
Reply #22020-06-20
Vacuum level = Atmospheric pressure – Absolute pressure. The formula is as shown above; figure it out by yourself; P
Reply #32020-06-20
In the same area, fluctuations in atmospheric pressure should be very small. The absolute pressure can be used as the control parameter, so there will be no impact.
Reply #42020-06-20
I’m not quite sure what should be used as the control parameter either. Our vacuum gauge shows the pressure ranging from normal pressure to absolute zero pressure: 657 mmHg to 0 mmHg. Is atmospheric pressure the control parameter here? Under these conditions, could fluctuations in atmospheric pressure affect the fluctuations in the vacuum gauge reading (but only to a small extent)?
Reply #52020-06-20
“Inside the vacuum distillation tower, the vacuum level remains constant. ”Once you’ve set the vacuum level, why worry about fluctuations in atmospheric pressure?
Reply #62020-06-22
What is the relationship between negative pressure distillation and external atmospheric pressure?
Reply #72020-06-27
Vacuum degree = Absolute pressure – Atmospheric pressure!

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