Thermostatic control valve with fluid mixing

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 31/64 (2006.01) G05D 23/13 (2006.01)

Patent

CA 2062315

A thermostatic control valve assembly for use in continuously mixing a hot first fluid with a cold second fluid to continuously produce a mixed fluid at a constant temperature. The valve assembly includes an improved mixing dome defining a mixing chamber that facilitates thorough mixing of the hot and cold fluids over a wide range of flow rates, including rates as low as two gallons per minute. The improved mixing performance is accomplished by a plurality of baffles sequentially disposed along the flow path within the mixing chamber. Each baffle defines an elongated opening which is angularly displaced from the elongated opening of the other baffles to turn the fluid flow, thereby optimally mixing the hot and cold fluids over a wide range of flow rates.

Ensemble de valves de contrôle thermostatique pour usage dans un système de mélange continu d'un premier fluide chaud avec un second fluide froid pour continuellement produire un mélange à température constante. L'ensemble de valves inclut un dôme de mélange amélioré définissant une chambre de mélange qui facilite le mélange complet des fluides chaud et froid sur une vaste gamme de débits, incluant des débits aussi faibles que deux gallons par minute. L'amélioration de la performance de mélange est réalisée par une pluralité de déflecteurs séquentiellement disposés le long de l'écoulement à l'intérieur de la chambre de mélange. Chaque déflecteur définit une ouverture allongée qui est angulairement déplacée par rapport aux ouvertures des autres déflecteurs ce qui permet de modifier l'écoulement du fluide et ainsi optimiser le mélange des fluides chaud et froid sur une vaste gamme de débits.

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