F - Mech Eng,Light,Heat,Weapons – 28 – F
Patent
F - Mech Eng,Light,Heat,Weapons
28
F
F28F 1/40 (2006.01) B01J 19/00 (2006.01) B01J 19/24 (2006.01) B23K 15/00 (2006.01) B23K 26/26 (2006.01)
Patent
CA 2702863
The invention relates mainly to a tube used in furnaces, which includes at least one attached radial bar (4a, 4b, 4c, 4d, 4e, 4f) fastened by welding to the internal face (3) of the wall (2) of the tube (1). The invention also relates to a method of manufacturing such a tube, which includes at least one electron-beam or laser-beam welding step, in which at least one attached radial bar (4a, 4b, 4c, 4d, 4e, 4f) is welded, from outside the tube (1), to the internal face (3) of the wall (2) of the tube (1). The tubes of the invention may be used in reforming, steam-cracking or DRI furnaces.
L' invention porte principalement sur un tube utilisé dans des fours qui comporte au moins une barrette radiale rap-portée (4a, 4b, 4c, 4d, 4e, 4f) solidarisée par soudage à la face interne (3) de la paroi (2) du tube (1). L' invention porte également sur un procédé de fabrication d'un tel tube comprenant au moins une étape de soudage par faisceau d'électrons ou faisceau laser depuis l'extérieur du tube (1) d'au moins une barrette radiale rapportée (4a, 4b, 4c, 4d, 4e, 4f ) sur la face interne (3) de la paroi (2) du tube (1). Les tubes de l'invention peuvent être utilisés dans les fours de reformage, de vapocraquage ou de DRI.
Nioche Pierre Emmanuel
Verdier Gilles
Manoir Industries
Mcfadden Fincham
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