| 摘要 |
PURPOSE:To obtain a rotary evaporating and cooling device generating no cooling irregularity. CONSTITUTION:Cooling liquid supply pipes 3,4 and cooling liquid discharge pipes 5,6 are connected to rolls 1,2. One ends of the cooling liquid discharge pipes 5,6 are connected to the siphon pipes 20,21 attached to the interiors of the rolls 1,2 and the other ends thereof are connected to the suction port 22 of a vacuum pump 7. The vacuum pump 7 is constituted of an ejector 30, a centrifugal pump 31 and a tank 32. |
