Wieland-Werke Ag

Axel Kriegsmann

Manfred Knab

Gerhard Schuez

Klaus Menze

Andreas Beutler

Andreas Schwitalla

Andreas Knoepfler

Manfred Hage

A metallic heat transfer tube, in particular for the evaporation of liquids from pure substances or mixtures on the outside of the tube. Fins are integrally formed on the outside of the tube. Recesses are arranged in the area of the base of the primary grooves and extend between the fins. The recesses are in the form of re-entrant secondary grooves. The mechanical stability of the tube is not negatively influenced because material is primarily removed from the fin flanks toward the base of the groove so that the re-entrant secondary grooves are radially open.

Heat transfer tube and a method of fabrication thereof

Method of fabricating a heat exchanger tube

A heat exchanger wall for the transfer of heat from one first medium on one side of the wall to a second medium to be evaporated on the other side of the wall, with this other side having integral, aligned distributor grooves for distributing the liquid phase of the second medium. Good distribution of the liquid on the surface of the heat exchanger wall and simultaneous good vaporization characteristics are guaranteed according to the invention by the following characteristics:

Heat exchanger wall, in particular for spray vaporization

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Ulm, Germany

Axel Kriegsmann