Tube bundle heat exchanger

Details Tube bundle heat exchanger Tube bundle heat exchanger

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 7/06 (2006.01) F28F 9/013 (2006.01) F28F 9/22 (2006.01)

Patent

CA 2532466

The invention relates to a tube bundle heat exchanger comprising at least one channel (4, 5) that guides a heating or cooling medium, particularly a hot gas, whereby the tubes (3) of the tube bundles (2) extend in an, in essence, axially parallel manner with regard to the channel longitudinal axis (6) through the channel (4, 5), and the heating or cooling medium is guided through rings (9) and discs (10), which are arranged on and attached to the respective outer walls (7, 8) of the channel (4, 5) in an alternating manner whereby, when viewing in an axial direction of the channel (4, 5), zigzagging through the channel (4, 5) having, in essence, a circular cross-section. Inside at least one channel (4, 5), the rings (9) and discs (10) each accommodate and position all tubes (3) of a channel (4, 5) by means of cylindrical recesses (11), and the perimeter contour (12) of the rings (9) and of the discs (10) follow the mid-points (14, 15) of the outermost or innermost tube bundle tubes (3) on the medium flow-through side (13), whereby the perimeter contour (12) has a limb (16) that surrounds all outermost and innermost tubes (3).

L'invention concerne un échangeur de chaleur à faisceau tubulaire, comprenant au moins un canal de circulation d'un fluide de chauffage ou d'un fluide de refroidissement, en particulier d'un gaz chaud, les tubes (3) du faisceau tubulaire (2) présentant des axes s'étendant sensiblement parallèlement à l'axe longitudinal du canal (6), à travers le canal (4, 5), et le fluide de chauffage ou de refroidissement étant dirigé à travers des anneaux (9) et des disques (10), en direction axiale du canal (4, 5), fixés et disposés en alternance sur les parois d'enveloppe respectives (7, 8) du canal (4, 5), en forme de zigzag à travers le canal (4, 5) présentant une section sensiblement circulaire. Dans au moins un canal (4, 5), les anneaux (9) et les disques (10) reçoivent et positionnent respectivement l'ensemble des tubes (3) d'un canal (4, 5) au moyen d'évidements cylindriques (11), et suivent le contour périmétrique (12) des anneaux (9) et des disques (10) sur le côté de circulation du fluide (13), respectivement, les points centraux (14, 15) des tubes extérieurs ou intérieurs du faisceau (3), ledit contour périmétrique (12) comprenant une traverse (16) entourant l'ensemble des tubes extérieurs et intérieurs (3) (Fig. 2 et 3).

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