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    • 1. 发明授权
    • Evaporator for liquid solutions
    • 液体溶剂蒸发器
    • US5246541A
    • 1993-09-21
    • US699764
    • 1991-05-14
    • Rolf Ryham
    • Rolf Ryham
    • B01D1/06B01D1/30
    • B01D1/305B01D1/065
    • A falling film evaporator includes a chamber having a top and bottom tube plate; a plurality of vertical tubes each having an interior and exterior surface and extending through the chamber and being supported by the top and bottom tube plates; an inlet at the chamber for feeding heating medium into the chamber; a distributor above the tubes for feeding liquid to be evaporated into the tubes and for causing the liquid to be distributed as a falling film along the interior surface of the tubes so as to evaporate the liquid and generate vapor as the liquid passes in heat exchanging relationship with a heating medium present at the exterior surface of the tubes; a vapor space defined by a circumferential wall below the tubes; a plurality of vertically elongated spaced elements having a substantially U-shaped cross-section with inwardly pointing vertical edges for receiving the evaporated liquid and the vapor, the elements being arranged in a circumferential wall below the tubes within the vapor space spaced from the wall of the vapor space and including a conical bottom; a drainpipe in the bottom for discharging the separated liquid into the vapor space and outlets in the vapor space for separately discharging the vapor and the liquid therefrom.
    • 降膜蒸发器包括具有顶部和底部管板的腔室; 多个垂直管,每个具有内表面和外表面并且延伸穿过所述室并由所述顶部和底部管板支撑; 在室中的入口,用于将加热介质供入到室中; 在管上方的分配器,用于将待蒸发的液体送入管中,并使液体沿着管的内表面作为降膜分布,以便当液体以热交换关系通过时蒸发液体并产生蒸汽 存在于管的外表面的加热介质; 由管下面的周壁限定的蒸汽空间; 多个垂直细长间隔的元件,具有基本上U形的横截面,其具有向内指向的垂直边缘,用于接收蒸发的液体和蒸气,所述元件布置在与壁的间隔隔开的蒸汽空间内的管的下方的圆周壁中 蒸气空间并包括锥形底部; 用于将分离的液体排放到蒸气空间中的排水管和蒸气空间中的出口,用于分别从其中排出蒸汽和液体。