Mitigation of in-tube fouling in heat exchangers using...

Details Mitigation of in-tube fouling in heat exchangers using... Mitigation of in-tube fouling in heat exchangers using...

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 7/16 (2006.01) F28F 19/00 (2006.01)

Patent

CA 2650740

Fouling of heat exchange surfaces is mitigated by a process in which a mechanical force is applied to a fixed heat exchanger to excite a vibration in the heat exchange surface and produce shear waves in the fluid adjacent the heat exchange surface. The mechanical force is applied by a dynamic actuator coupled to a controller to produce vibration at a controlled frequency and amplitude output that minimizes adverse effects to the heat exchange structure. The dynamic actuator may be coupled to the heat exchanger in place and operated while the heat exchanger is on line.

Procédé permettant de réduire l'encrassement de surfaces d'échange thermique consistant à appliquer une force mécanique sur un échangeur thermique fixe afin de faire vibrer les surfaces d'échange thermique et créer des ondes de cisaillement dans le fluide adjacent auxdites surfaces d'échange thermique. La force mécanique est appliquée par un actionneur dynamique couplé à un module de commande dans le but de générer des vibrations à une fréquence et une amplitude bien définies en minimisant ainsi les effets préjudiciables à la structure de l'échangeur thermique. L'actionneur dynamique peut être couplé à l'échangeur thermique in situ et être utilisé pendant le fonctionnement de l'échangeur.

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