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    • 10. 发明申请
    • WATER TREATMENT PROCESS
    • 水处理工艺
    • WO2011098478A1
    • 2011-08-18
    • PCT/EP2011/051881
    • 2011-02-09
    • BASF SEMACHHAMMER, OttoMÜLLER, ChristianZEHNER, Peter
    • MACHHAMMER, OttoMÜLLER, ChristianZEHNER, Peter
    • C02F1/04B01D1/26B01D3/34
    • C02F1/048B01D1/14B01D1/16B01D5/006C02F1/12C02F1/14C02F1/16C02F2103/08Y02A20/128Y02A20/129Y02A20/142Y02W10/37
    • A process and an apparatus for obtaining pure water from seawater, comprising: a) a raw water is provided that comprises at least one non-volatile component (salt), b) the raw water provided is passed as cooling medium into a heat exchanger, c) additional heat is supplied to the raw water that is heated in the heat exchanger, d) the raw water from step c) is fed to an evaporation zone, e) a carrier gas suitable for water vapour is provided (air), f) the carrier gas is brought into contact with the raw water in counter current flow in the evaporation zone which contains baffles, wherein the carrier gas takes up water vapour from the raw water, g) the raw water that is obtained in step f) that is enriched with the at least one non-volatile component is taken off from the evaporation zone, h) the water vapour- loaded carrier gas from the evaporation zone is fed to the heat exchanger and is cooled in counter current flow to the raw water, wherein the water vapour present in the carrier gas partially condenses out, i) the carrier gas depleted in water vapour is passed out of the heat exchanger, k) the condensed water vapour is taken off from the heat exchanger as pure water, wherein the evaporation zone is operated substantially adiabatically, and wherein the carrier gas is transported by means of natural convection through the evaporation zone and thereafter through the heat exchanger.
    • 一种用于从海水中获得纯水的方法和装置,包括:a)提供包含至少一种非挥发性成分(盐)的原水,b)所提供的原水作为冷却介质通入热交换器中, c)向在热交换器中加热的原水提供额外的热量,d)将来自步骤c)的原水进料到蒸发区,e)提供适合于水蒸气的载气(空气),f )在含有挡板的蒸发区中,载气与逆水流接触,其中载气从原水中吸收水蒸汽,g)在步骤f)中获得的原水, 富集至少一种非挥发性成分从蒸发区域中取出,h)将来自蒸发区的载有水蒸气的载气送入热交换器,并以逆流将其冷却至原水, 其中存在于载气中的水蒸汽 部分地冷凝,i)贫化的水蒸气的载气从热交换器中流出,k)冷凝的水蒸汽作为纯水从热交换器中取出,其中蒸发区基本上绝热地运行,并且其中 载气通过自然对流通过蒸发区输送,之后通过热交换器输送。