HELICOIDAL HEAT EXCHANGER WITH FINS AND BOILER EQUIPPED WITH SUCH EXCHANGER

摘要

The invention relates to a helical heat exchanger (6a) with fins (14a) for heat transfer fluid, which is intended to equip a boiler equipped with at least one burner and which consists of a tube wound in a helix and provided on the top. minus part of its length of fins (14a), exchanger remarkable in that the distribution pitch of the fins varies continuously or discontinuously along the exchanger and for example in the latter case, in sets (A, B , C) one or more turns or portions of contiguous turns, so that said exchanger has a number of fins which increases as the relevant zone of the exchanger moves away from the burner.