Flame tube exchanger for absorption heat pumps

Abstract

The object of the invention is a flame tube exchanger for absorption heat pump generators, comprising a first tubular body coaxially inserted in a second tubular body, each tubular body being provided with an inner surface and an outer surface which extend about a common axis, in which the outer surface of the first tubular body is adapted to come into contact with a heating fluid transiting between the first tubular body and the second tubular body from an inlet section to an outlet section, and the outer surface of the second tubular body is adapted to come into contact with a mixture containing a refrigerant to be evaporated by effect of the heat exchanged between the heating fluid and said mixture. The exchanger comprises fins arranged between the outer surface of the first tubular body and the inner surface of the second tubular body to allow both the heat exchange by convection between heating fluid and the tubular surfaces and the surfaces of the finned pack and the thermal conduction of heat between the first tubular body and the second tubular body.

Dependencies are inferred from the claim text.