Gas blockage of centrifugal liquid oxygen pump

In the low pressure oxygen generator, if a large amount of gas in the centrifugal liquid oxygen pump vaporizes and blocks the flow passage, it will cause gas blockage. When gas blockage occurs, the centrifugal liquid oxygen pump will not discharge liquid oxygen, the outlet pressure will not rise or fluctuate greatly, there is liquid shock sound in the pump, and even the pump body will vibrate. Although it will not damage the liquid oxygen pump, it will cause the centrifugal liquid oxygen pump not to work.