INTERNALS IN A HELICALLY COILED HEAT EXCHANGER FOR SUPPRESSING GAS VORTICES

摘要

The invention relates to a heat exchanger for indirect heat exchange between a first and second medium having: a shell, extending along a longitudinal axis and surrounding a shell space for receiving the first medium, and a plurality of tubes coiled helically onto a core tube which extends along the longitudinal axis in the shell space forming a tube bundle. The tube bundle comprises a number of tube layers lying one on top of the other in the radial direction. The second medium is conducted within the tubes to exchange heat indirectly with the first medium. The at least one distributor arm distributes a liquid phase of the first medium to an upper side of the tube bundle. The at least one distributor arm has, opposite from the upper side, a bottom with through-openings, so that the liquid phase can be passed to the upper side of the tube bundle. From an underside of the bottom of the at least one distributor arm, and at least one directing element projects in the direction of the upper side of the tube bundle and extends along the longitudinal axis toward the upper side of the tube bundle. The at least one directing element extends in a circumferential direction of the tube bundle over at least half the width of the bottom of the at least one distributor arm and/or the at least one directing element projects along the longitudinal axis into a gap of the tube bundle arranged between two tube layers of the tube bundle.