A supply air terminal assembly

F - Mech Eng,Light,Heat,Weapons – 24 – F

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Details

F24F 13/06 (2006.01) F24F 13/10 (2006.01) F24F 13/28 (2006.01)

Patent

CA 2560140

Supply air terminal assembly for the supply of supply air to a room, the supply air terminal assembly comprising two throttling units (21, 31, 22, 32), which are supplied with supply air from a supply air pipe (3), each throttling unit being formed in order to give the passing supply air flow a preselected pressure drop under weak noise generation, one of, the first, throttling unit (21, 22) having a preconnected shut off valve (40, 44, 45) which normally is closed, and which is arranged to be reset into an open position (40~) for temporary enhancement of the supply air flow through the supply air terminal assembly. In the closed state, the valve (40, 44, 45) is arranged to connect the two throttling units in series in the flow direction of the supply air, the first throttling unit (21, 31) being located downstream the second throttling unit (22, 32), and in the open state connects the two throttling units in parallel.

L'invention concerne un ensemble de distribution d'air de ventilation dans une pièce, qui comprend deux unités d'étranglement (21, 31, 22, 32) alimentées en air de ventilation provenant d'une conduite d'air (3). Chaque unité d'étranglement est conçue pour appliquer au débit d'air de ventilation qui s'écoule une chute de pression préétablie avec faible émission de bruit. Une des premières unités d'étranglement (21, 22) présente une soupape d'arrêt montée en permanence (40, 44, 45), normalement fermée et arrangée pour être replacée dans une position ouverte (40') pour une accélération temporaire du débit d'air de ventilation à travers l'ensemble de distribution d'air de ventilation. A l'état fermé, la soupape (40, 44, 45) est arrangée pour raccorder en série les deux unités d'étranglement dans le sens d'écoulement de l'air de ventilation, la première unité d'étranglement (21, 31) étant située en aval de la seconde unité d'étranglement (22, 32). A l'état ouvert, la soupape raccorde en parallèle les deux unités d'étranglement.

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