Atmospheric pressure tank deflation pressure
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Is there any information available that shows the pressure at which a pressure vessel deflates under normal conditions?
This should be calculated based on GB150 for negative pressure; the situation is complex, so it’s likely not possible, and it wouldn’t be reliable either
This is a picture I saw online; when water is released, if the breathing port on the top of the tank isn’t opened first, and other ports such as the vent holes aren’t opened either, it will cause the tank to collapse
Caused by insufficient stiffness when negative pressure is generated
The original poster is asking what pressure is required to cause it to collapse.
It is affected by the diameter, length, and thickness of the tank.
The deflation of a storage tank at atmospheric pressure indicates that it is not suitable for use under atmospheric conditions; it is already being operated under negative pressure, and the main reason for this is the lack of connection to the atmosphere.
It depends on the vacuum level permitted by the design, which is determined by the design external pressure strength of the tank.