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    • 3. 发明授权
    • VERFAHREN UND VORRICHTUNG ZUM ENTSALZEN VON MEERWASSER
    • 方法和设备海水淡化
    • EP0779829B1
    • 1998-12-23
    • EP95932662.0
    • 1995-09-04
    • HOISS, Jakob
    • HOISS, Jakob
    • B01D3/00B01D1/30B01D1/00B01D1/12C02F1/04
    • B01D1/007B01D1/0047B01D1/12B01D1/305B01D3/007C02F1/045Y02A20/128
    • The invention concerns a process for desalinating sea water, wherein the sea water is evaporated and condensed within a primary system (13) and a secondary medium (14), preferably untreated water, is evaporated and condensed within a self-enclosed secondary system which contains a condenser (66) and is spatially separate from the primary system. The sea water is evaporated as a result of being heated by contact with the secondary medium, which is previously heated to a greater degree at excess pressure in the condenser (66), the secondary medium being evaporated by condensation of the sea water vapour in the secondary system (11). The sea water vapour is passed through a cyclone. The entire flow of sea water fed to the primary system is divided into a first partial flow (23) and a second partial flow (24) which are at least approximately the same size. The first partial flow is heated to a temperature close to boiling temperature in the primary system in a first heat exchanger (28) through which hot water distillate flows at the primary system outlet, and the second partial flow is heated to this temperature in a second heat exchanger (38) through which the drawn-off hot sludge flows. The ratio of the total amount of sea water supplied per unit of time relative to the amount of sludge per unit of time (concentration factor CF) is between a value which is greater than 1 and less than 2. A process of this type is suitable for the thermal desalination of sea water, high-quality, sterilized water distillate being produced in an energy-saving manner with, simultaneously, a low concentration of the sea water to be evaporated.
    • 4. 发明公开
    • DISTILLATION APPARATUS
    • 蒸馏装置。
    • EP0639097A1
    • 1995-02-22
    • EP92900876.0
    • 1991-12-16
    • AQUAMAX OY
    • KOISTINEN, PeterRANTALA, Reijo
    • C02F1B01D1D21C11F28F21
    • B01D1/007B01D1/22B01D1/28F28F21/065Y10S203/04
    • The invention relates to a distillation apparatus (1) which is suitable in particular for the distillation of sea water into fresh water. The apparatus comprises a plurality of flat, bag-like elements (3) formed from a thin film material such as plastic film and placed one against the other, the elements serving as heat exchangers between a vaporizing liquid flowing along the exterior surfaces of the element and a condensing vapor directed to the inside of the element, and a compressor (15) for increasing the pressure and temperature of the generated vapor before it is directed to the inside of the elements. The essential idea of the invention is that at the upper end of each bag-like element (3) there is a honeycomb-structured end strip (4) having substantially the width of the element, the strip containing parallel feeding ducts (26) separated from each other by partition walls, the ducts distributing the liquid to be evaporated over the entire width of the element surface. In addition, the strip (4) may contain ducts (25), formed in the same manner, which direct the vapor to be condensed to the inside of the element over the entire width of its end. At the lower end of the element there may additionally be a honeycomb-structured end strip (7), the ducts contained therein collecting the produced distillate into a collection vessel (8) and discharging any unvaporized liquid into a collection basin (9).