Vacuum pump pumping time
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A water ring vacuum pump is used to evacuate a stainless steel container, requiring the container to be reduced to a certain level of vacuum. What is the relationship between the diameter of the pipe connecting the pump and the container and the pumping time? What is the difference between a sudden increase in the diameter of a pipe and a sudden decrease in its diameter? Is it true that the pumping time is shortest when using a pipe with a diameter equal to that of the pump’s suction flange?
Vacuum pumping, of course, follows the principle of conservation of mass: the more gas that is removed, the faster the vacuum level increases. Thicker pipes allow for faster vacuum creation than thinner ones, resulting in a shorter time required to reach the desired vacuum level
This post was last edited by melamine on 2015-8-17 at 17:03. The poster should be more flexible. Level control, pressure regulation, and so on all follow the same principle: the balance of two parameters entering and leaving the container. When more fluid enters than exits, the pressure or liquid level rises; when the inflow and outflow are equal, the pressure and liquid level remain stable; when less fluid enters than exits, the pressure and liquid level drop. Narrowing the neck is equivalent to artificially creating a bottleneck for entry or exit.