| 摘要 |
The invention relates to a recuperator for radiating tube burner, including: a tubular casing (3) placed inside the exhaust pipe (1) to determine a first annular space (2) for expelling part of the combustion materials; a mixture tube (5) placed inside the tubular casing (3) so as to define a second annular space (4), wherein the combustion air flows in a countercurrent relative to the combustion materials in the first annular space (2) and is preheated, the preheated combustion air being directed to a ferrule (6) that defines at least one path for reversing the combustion air flow direction and for directing the combustion air to an inlet of the mixture tube (5) and comprises at least one pipe (9) for enabling the passage of at least part of the combustion materials to the inside of the mixture tube; the or each pipe (9) of the ferrule opens, for passage of the combustion materials, directly onto the recuperator (6) surface (6b), turned upstream from the exhaust pipe, and is oriented so as to ensure a flow of combustion materials mainly parallel to the axis of the recuperator. |
