Seek the formula for calculating the diameter of vacuum pipes
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I need the formula for calculating the diameter of vacuum pipes; an accurate calculation or just an approximate estimate will do~ Waiting online~~ Urgent!~~
Generally, the pipe diameter can be calculated directly based on the empirical flow velocity for vacuum pipes, along with the density of the medium being transported within the pipe.
Could you explain it in more detail? Please, please
Give me the flow rate, medium molecular weight, temperature, and pressure, and I’ll estimate it for you?
-0.09 Mpa, room temperature, 360 m3/min; the medium is ordinary moist air (i.e., equipment that uses water is under continuous vacuum)
The pipe diameter should preferably be DN300 or larger; in this case, the pressure drop is approximately 10 Pa per 10 meters of pipe length. To save costs, it still cannot be less than DN250. For reference.