When the centrifugal liquid oxygen pump works, the inlet pressure is low and the outlet pressure is high. The higher the pressure is, the higher the gasification temperature is. If the temperature of the liquid into the pump is higher than the gasification temperature corresponding to the pressure at the liquid inlet, part of the liquid will be gasified and form bubbles. When the bubbles are brought to the higher pressure at the outlet, due to the increase of pressure, the gasification temperature will be increased, so the steam will be re liquefied, the bubbles will break rapidly, and the surrounding liquid will rush to the original bubble position at a high speed, and the bubbles will explode inside the liquid When there is a violent impact, the pump blades will be eroded, which is called cavitation erosion.
