SAMPLING/FEED-IN OF GAS FOR INFLUENCING RADIAL LIQUID MIGRATION

摘要

The invention relates to a heat exchanger (1) for indirect heat transfer between a first medium (M) having a liquid phase (F) and a gaseous phase (G) and a second medium (M ') comprising: a jacket (5 ), which surrounds a jacket space (6) and extends along a longitudinal axis (z), wherein the jacket space serves to receive the first medium, and a tube bundle (3) arranged in the jacket space (6) has a plurality of tubes (30) for receiving the tube second medium (M ') helically wound in several tube layers on a core tube (300) of the heat exchanger (1) extending along the longitudinal axis (z) of the jacket (5) in the shell space (6), wherein the tube bundle ( 3) has a plurality of inner tube layers (4a, 4aa) surrounding the core tube (300) and a plurality of outer tube layers (4b, 4bb) surrounding the inner tube layers (4a, 4aa) and the core tube (300). In particular, it is provided that the heat exchanger (1) is designed to remove part of the gaseous phase (G) from the area of the inner pipe layers (4a, 4aa) from the jacket space (6) via a gas discharge device (43) and / or one gaseous phase (G) of the first medium (M) in the region of the outer tube layers (4b, 4bb) via a gas supply means (53) in the jacket space (6) to supply.