If you have a system that is very tight and a very good vacuum pump you can remove almost all of the air molecules and water molecules as well but it will all be in the form of a gas.
It'll be able to lift water up to a certain hight. h=P/rho*g
some vacuum pumps can cope with liquid flowing through them- an example being the aspirator/ejector type pumps that are powered by a pressurised fluid. http://en.wikipedia.org/wiki/Steam_eject...
Other vacuum pumps especially those for very high vacuum will not like pumping liquid at all, and would need a trap/separator to stop liquids entering the pump- needs be little more than a sealed tank that can cope with the vacuum. air leaves the tank to the pump via a pipe that exits near the top. air enters the tank via another hole somewhere near the top. Any liquid/solids pulled into the trap tend to fall down to the bottom of the trap. Needs a draining valve at bottom to empty what's gathered in the trap. Emptying can only be done when the system is at atmospheric pressure.Similar idea to http://en.wikipedia.org/wiki/Pooter
In the context of HVAC&R, vacuum pumps are commonly used for dehydration.
The pumps, however, will only remove water vapor.
As liquid water is subjected to vacuum, it loses 540 calories
(chills rapidly) for every gram which evaporates.
Evaporative cooling makes liquid water very difficult to remove
with vacuum, unless additional heat is supplied to the system
being dehydrated.
depends on the type of vacuum pump. a roughing pump will remove air at room pressure, which might be wet, but probably not actual liquid water which would probably wreck it. other vacuum pumps e.g. turbo pumps, diffusion pumps are designed for lower pressures and would certainly not remove liquids.
as oil says, water would evaporate and the pump would remove the water molecules
a wet/dry vacuum cleaner will remove water nicely, since it doesn't actually pass through the pump
i think noo vacuum pump can't remove water & air..
no
