Quench exchanger with extended surface on process side

F - Mech Eng,Light,Heat,Weapons – 28 – D

Patent

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Details

F28D 7/10 (2006.01) C10G 9/00 (2006.01) C10G 9/20 (2006.01) F28F 1/40 (2006.01)

Patent

CA 2663065

A quench exchanger and quench exchanger tube with increased heat transfer area on the process side of the tube are provided. The exchanger provides increased heat transfer efficiency relative to a fixed tube length and at the same time eliminates stagnant and low velocity areas as well as recirculation eddies. The tubes (100) incorporate a fin profile (110) on the process side of the tube with alternating concave (120) and convex (130) surfaces. Additionally, the fins (110) are preferably aligned with the tube center line (140) as opposed to being twisted or spiraled.

L'invention concerne un échangeur de trempe et un tube d'échangeur de trempe possédant une zone de transfert de chaleur augmentée sur le côté de traitement du tube. L'échangeur de l'invention permet d'obtenir une efficacité de transfert de chaleur améliorée par rapport à une longueur de tube fixe et d'éliminer dans un même temps les zones stagnantes et à vitesse réduite ainsi que les courants de recirculation. Les tubes (10) présentent un profil d'ailette (110) sur le côté de traitement du tube et une alternance de surfaces concaves (120) et convexes (130). En outre, au lieu d'être torsadées ou spiralées, les ailettes (110) sont de préférence alignées sur la ligne centrale du tube.

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