Reasons for the damage of pressure vessels
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For ordinary pressure vessels, as long as they are designed to operate within normal pressure ranges, there should be no problems. However, if the operating temperature is 200 degrees, even at relatively low pressures, cooling the equipment directly with 20-degree cold water can easily cause damage to it. I would like to ask everyone: why is this the case?
Thermal expansion and contraction, stress issues.
Stress is a somewhat complex concept. Fellow sailors, could we consider it from the perspective of atoms and their principles, to understand why such large forces are generated by stress during temperature changes?
When subjected to a sudden cooling from 200 degrees, the areas that are cooled contract as their temperature drops, while the areas that have not yet been cooled remain at a higher temperature and do not contract; pulling on them can easily cause cracks