VACUUM-DISTILLATION APPARATUS Russian patent published in 1995 - IPC

FIELD: chemical and oil industries. SUBSTANCE: working agent is supplied to and discharged from spaces 9 and 10 alternatively. As a result, torus 5 reciprocates inside evaporator 1. When torus moves, rarefication and compression occur inside evaporator 1 alternatively. When the pressure becomes lesser than the saturation pressure at a given temperature, liquid boils up. Torus 5 displaces vapors to system 3. The exhaust liquid enters the system. EFFECT: improved design. 1 dwg