Wickelmodul zur Crossflow-Filtration

摘要

The invention relates to a helical module for filtration with a helical core (2) and at least one membrane (6), one permeate spacer (10) and one retentate spacer (12) which are wound in at least one winding about the helical core (2) such that the membrane lies between the permeate (10) and retentate spacer (12). The invention is characterised in that the winding radius varies within a turn and within the corresponding helical core (2).