COLD TRAP TO INCREASE GAS RESIDENCE TIME TO INCREASE CONDENSATION OF VAPOR MOLECULES

摘要

A cold trap (2) is disclosed with a chamber (15) having partitions or surfaces (4) that direct the incoming wet vapor to substantially all of the cold inner surfaces of the cold trap. Typically, the cold inner surfaces are the inner walls of the chamber. The interaction of the wet vapor and the cold surfaces condense the molecules. The wet vapor minus the condensed molecules may be heated and returned to the source of the wet vapor for reuse. One example of the partitions or surfaces is a spiral inclined plane where the wet vapor flows along the spiral plane that acts to drive the wet vapor toward the cold inner walls of the chamber.