The issue of inlet pressure in centrifugal pumps
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The centrifugal pump is used as a pump in the middle section of the distillation tower; it is located on the ground, with the middle section of the distillation tower being about 20 meters above the ground. What is the inlet pressure of this centrifugal pump under these conditions? Is it the internal pressure plus the 20M height difference, or is it her own pressure?
The inlet pressure is the static pressure of the gas being drawn out + the static pressure generated by the liquid column from the extraction outlet to the pump inlet.
Inlet pressure is the pressure of the liquid at the location of the inlet.
The head height before the pump inlet should be included
It shouldn’t be that simple to calculate, right! ! ! It should be related to the high pressure difference in front of the inlet, but it can’t be simply added together, right?
Basically, it’s the suction pressure at the middle section plus the pressure difference due to the liquid column caused by the liquid level; the exact calculation will certainly be different.
Inlet pressure = static pressure of the vapor being drawn out + static pressure generated by the liquid column from the extraction point to the pump inlet – resistance caused by flow
May I ask how to calculate the static pressure from the extraction port to the pump inlet?
How to calculate the static pressure of the liquid column at the outlet?
P=Meat is something people like to eat; it’s taught in junior high school physics. The density of the meat medium should be listed in your material balance sheet; by using that information, you should be able to estimate an approximate value with an error of no more than 1 meter, right? G is approximately equal to 9.8, right? It’s mentioned in physics books I’m speechless and turn to the heavens in despair.
I have been reading Section 2 of Chapter 9 in the ninth-grade physics textbook, which deals with the pressure of liquids. The formula P=ρgh used in that book is for calculating pressures in open containers. I am now dealing with a closed container under pressure; according to the principle of communicating vessels, the pressure at the inlet of the pump should be equal to the pressure inside the tower. I’m not entirely sure how to calculate this, which is why I’m seeking help from everyone.