[Help] Calculation of vacuum level during tank discharging process
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Dear experts, I need to determine the design pressure for a storage tank. Considering the possibility of the tank collapsing under negative pressure, it is necessary to take negative pressures into account. Assuming normal temperature conditions, a fully filled tank-type device discharges material from its bottom, with no nitrogen inlet or balance pipe at the top; during the discharge process, negative pressure is generated within the device. How can this maximum value of negative pressure be calculated? Are there any small apps in the forum? ?
If there is positive pressure during feeding, how can exhaust be achieved?
This post was last edited by hcer on 2016-9-19 15:03. Sealed container? Then you need to consider a fully vacuum design. However, it’s completely impossible to do this with atmospheric-pressure storage tanks
The exhaust is equipped with a vent pipe valve.
The current situation is that a fully vacuum-based design would result in much higher equipment costs; therefore, it is necessary to reduce the negative pressure level of the equipment design appropriately, as long as it still ensures that the material does not get collapsed
This post was last edited by hcer on 2016-9-19 15:22: Pressure tank or atmospheric pressure tank? A pressure tank should be equipped with a vent valve; for vacuum tanks, it’s best to maintain a complete vacuum state – safety first
There are several pressure tanks; some have a pressure of 0.6 Mpa while others have 1.6 Mpa. However, it is occasionally necessary to evacuate and replace the air inside them.