Fluidized spray tower

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

Patent

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Details

F28C 3/08 (2006.01) F28C 3/06 (2006.01)

Patent

CA 2699670

A fluidized spray vessel. A vessel design is provided for recovering heat from gaseous heat streams. The vessel utilizes a semi-fluidized bed for obtaining desirable liquid/vapor contact times. A spray section is provided in which liquid is sprayed through nozzles designed to provide a mean droplet size having a terminal velocity of from about sixty percent to about ninety five percent of the superficial upward gas velocity. These spray tower design criteria enhance spray tower performance, and thus enables more efficient heat recovery to be practiced, particularly in systems where relatively low grade heat sources are encountered.

Il s'agit d'une cuve à projection fluidisée. La conception de la cuve permet de récupérer la chaleur des flux de gaz chaud. La cuve fait appel à un lit semi-fluidisé pour obtenir les durées recherchées de contact liquide/vapeur. Une section projection permet de projeter le liquide à travers des buses conçues pour produire une taille de gouttelette moyenne présentant une vitesse terminale d'environ soixante à quatre-vingt-dix pour cent de la vitesse superficielle du gaz vers le haut. Ces critères de conception de tour de projection améliorent le rendement de ladite tour, ce qui assure une récupération de chaleur plus efficace, en particulier dans les installations présentant des sources de chaleur de faible intensité.

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