Compact fluid heat exchanger construction - has array of helical fins in cylindrical tube forming fluid passages between end inlet and outlet assemblies

摘要

The heat exchanger has a system of passages (1) and fins (2), which may be hollow, forming heat exchange surfaces between a pair of fluids. These elements are connected to two collectors (3,4) forming fluid inlet and outlet points. The collectors are single closed-circuit elements arranged perpendicular to the exchanger axis. The elements forming the fluid passages are equally spaced around a cylindrical tube and arranged helically with a constant pitch. ADVANTAGE - High thermal transfer efficiency for given size.