초록 ▼

Falling film heat exchanger includes circular areas for evenly distributing feed liquid and/or heat exchange liquid to the tube interior and/or exterior surfaces. The circular areas may be defined by a liquid porous material, slots in an O-ring or vertical slots in the holes through and to which the

Falling film heat exchanger includes circular areas for evenly distributing feed liquid and/or heat exchange liquid to the tube interior and/or exterior surfaces. The circular areas may be defined by a liquid porous material, slots in an O-ring or vertical slots in the holes through and to which the tubes are joined.

대표청구항 ▼

A falling film heat exchanger comprising: a plurality of spaced apart vertical tubes secured in, and with the tube ends penetrating, an upper and lower tube sheet; a shell around the tube sheets and connected thereto; means defining a feed box for containing a liquid pool above the upper tube sheet

A falling film heat exchanger comprising: a plurality of spaced apart vertical tubes secured in, and with the tube ends penetrating, an upper and lower tube sheet; a shell around the tube sheets and connected thereto; means defining a feed box for containing a liquid pool above the upper tube sheet in communication with the upper ends of the tubes; means to deliver a liquid feed stream into the feed box; means to deliver a heat exchange liquid around the tubes inside of the shell between the upper and lower tube sheets and means to remove the heat exchange liquid therefrom; means blocking all liquid flow downwardly through the upper ends of the tubes except for an interior circular area adjacent the inner surface of the tubes; and means extending from the tube wall to the blocking means and spanning and extending around the entire interior circular area for distributing feed liquid along the inner surface of each tube as a thin falling film.