Gaseous media recuperator for use in an industrial gas burner

Abstract

A recuperator (100) for gaseous media for use in an industrial gas burner, which is tubular over a large part of its length and has a heat exchanger microstructure (3) formed by at least one heat exchanger wall (4), which has a central through-opening (6) and is covered on the inner circumference (2) by an inner recuperator jacket and on the outer circumference (1) by an outer recuperator jacket, wherein: - the heat exchanger microstructure (3) has at least two counter-flowing channels (10, 20), of which a return channel (10) extends between an inlet opening (11) and an outlet opening (12) and a feed channel (20) extending between an inlet opening (21) and an outlet opening (22) is for a gaseous medium;- the heat exchanger microstructure (3) is formed by a heat exchanger wall (4) that meanders at least sectionally in cross-section, through which the partial channels (13, 23) distributed around the circumference and running along the outer circumference (1) and / or along the inner circumference (2) are formed, each of which is part of the return channel (10) or part of the supply channel (20), characterized in that adjacent partial channels (13, 23) of the same main channel (10, 20) are connected to each other by several point openings (31, 32) which extend through a partial channel (13, 23) of the respective other main channel (10, 20) without opening towards or closing it upon passage.