| 摘要 |
<p>A device (42) for batch distilling a liquid at sub-atmospheric pressure including an evaporator section (66) having a valved entry port (36) or a demountable, sealable attachment (37), through which a batch of liquid is added to the evaporator section; a condenser (24) disposed between the evaporator section and an accumulator section (40); a pre-evaporator (70) disposed in the evaporator section for timed intermittent vaporizing of the liquid and a valved vent (44) for sealing said device.</p> |
