Interesting! Thanks for the info. We might just as well speculate it's a biobed readout or a field autodoc "for real" as well... Khan could probably use one, and that's the sort of equipment Kirk would feel compelled to donate.
The other contraption seems like it was torn out of the carcass of a dead fridge. Quite possibly this is how Khan gets his drinking water. Or some other beverage that benefits from distilling.