Reboiler - condenser and air distillation installation corresponding

摘要

The invention relates to a vaporizer-condensor (4) of the bath type, comprising at least one heat exchange body (13), having a multitude of flat passages (18) for the countercurrent circulation of two fluids in a same direction, and a sealed chamber (14) for confining a fluid containing the or each heat exchange body, the confinement chamber comprising a central section (50) of generally cylindrical shape along a longitudinal axis (Y-Y).The longitudinal axis of the central section of said or each confinement chamber is orthogonal to the direction of countercurrent circulation of the fluids in the flat passages of the corresponding heat exchange body.Use in double column air distillation installations.