Segmented rapid heating of fluid

Details Segmented rapid heating of fluid Segmented rapid heating of fluid

F - Mech Eng,Light,Heat,Weapons

22

B

F22B 1/30 (2006.01) F24D 13/02 (2006.01) F24H 1/10 (2006.01) H05B 3/03 (2006.01)

Patent

CA 2712301

A fluid heating apparatus has a fluid flow path from an inlet to an outlet, with multiple heating sections positioned along the flow path. Each heating section is at least one pair of electrodes between which an electric current is passed through the fluid to resistively heat the fluid during its passage along the flow path. At least one of the heating sections has a segmented electrode made up of a plurality of electrically separable segments. This allows an effective active area of the segmented electrode to be controlled by selectively activating the segments. A controller determines a required voltage and current to be delivered to the fluid by each heating section, and allows for input conductivity as well as variations in fluid conductivity with temperature. The controller activates selected segments of the segmented electrode to effect delivery of desired current and voltage by the segmented electrode to the fluid.

Un appareil de chauffage de fluide comporte un chemin découlement de fluide partant dun orifice dadmission jusquà un orifice dévacuation, plusieurs sections chauffantes étant positionnées le long du chemin découlement. Chaque section chauffante est représentée par au moins deux électrodes entre lesquelles un courant électrique traverse le fluide afin de chauffer de manière résistive le fluide au cours de son passage le long du chemin découlement. Au moins une des sections chauffantes comporte une électrode segmentée composée dune pluralité de segments électriquement séparables. Cela permet à une zone active efficace de lélectrode segmentée dêtre commandée par lactivation sélective des segments. Un dispositif de commande détermine une tension et un courant requis à envoyer au fluide par chaque section chauffante, et permet une conductivité dentrée ainsi que des variations de conductivité de fluide suivant la température. Le dispositif de commande active les segments sélectionnés de lélectrode segmentée afin deffectuer lenvoi du courant et de la tension souhaités par lélectrode segmentée au fluide.

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