Patent ID: 8394241
Filing Date: 2013-03-12
Classification: C02F,F24D,F24H,Y10T

Abstract:
1. An energy-saving distillation device comprising: a liquid providing unit having a liquid entry; a first heat-exchanging tube having a liquid-incoming end, a liquid-outgoing end and a first heat-exchanging room, wherein the liquid-incoming end communicates with the liquid entry, and wherein the liquid-incoming end and the liquid-outgoing end communicate with the first heat-exchanging room; a hot water tank having a body and a heating unit, wherein the body has a heating room communicating with the liquid-outgoing end of the first heat-exchanging tube; a steam pipe having a first end and a second end, wherein the first end communicates with the heating room, and wherein a first part of the steam pipe is received in the first heat-exchanging room; a condensing unit having a condenser tube, wherein the condenser tube has one end communicating with the second end of the steam pipe; a water-collecting container having a water-storing room communicating with another end of the condenser tube; an energy-saving heating unit comprising a second heat-exchanging tube, a heating device and a temperature control device electrically coupled to the heating device, wherein a second part of the steam pipe not overlapping the first part of the steam pipe is received in the second heat-exchanging tube, wherein the second heat-exchanging tube comprises a water-incoming end, a water-outgoing end and a second heat-exchanging room, wherein the water-incoming end communicates with the water-storing room, the water-incoming end and the water-outgoing end communicate with the second heat-exchanging room, with the heating device and the first part of the steam pipe received in the second heat-exchanging room; and an outlet valve communicating with the water-outgoing end of the second heat-exchanging tube; and a liquid level control unit disposed between the first heat-exchanging tube and the hot water tank, wherein the liquid level control unit communicates with the liquid-outgoing end of the first heat-exchanging tube and the heating room of the hot water tank, wherein the liquid level control unit comprises a trough body and a restrain member, wherein the trough body has a compartment storing a liquid, and wherein the restrain member is disposed in the compartment and has a smaller density than the liquid.