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There is a sealed tank filled with a medium; a vacuum pump is used to create a vacuum of -59 kPa above the liquid level. Is it possible to use a centrifugal pump placed below to extract water? What will be the result? I appreciate your advice greatly.
Water can be pumped out; it depends on the head pressure of your centrifuge to determine whether it’s possible to pump the water away.
The vacuum distillation column is a vacuum tower, and the bottom pump is a centrifugal pump. Whether a centrifugal pump can pump water depends on whether the effective NPSH meets the required NPSH for the pump; if it does not, the pump cannot pump water.
It comes down to the height difference between the centrifugal pump and the tank. In other words, the static pressure provided by the pump’s inlet must meet the pump’s required net positive suction head; otherwise, cavitation will occur in the pump
It’s possible, but centrifugal pumps generally don’t perform well; side-channel pumps are the best choice……