Apparatus for control of differential pressure in a heating...

G - Physics – 05 – D

Patent

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Details

G05D 7/01 (2006.01) F16K 1/52 (2006.01) F16K 15/18 (2006.01) F24D 19/10 (2006.01) G05D 16/06 (2006.01)

Patent

CA 2471978

The invention relates to an apparatus (1) for controlling the pressure difference in a heating or cooling system, which comprises a heating or a cooling source (2) and a feed duct (3) as well as a return duct (4), connected to the source, and consumption devices (5) disposed between said ducts, which emit or receives heat, at least one valve or the like (6 and 7 and 8, respectively) being used to control the flow through such a loop, a pressure difference regulator (9) being used to keep the pressure difference between the feed duct and the return duct constant. According to the invention, the pressure difference regulator (9) is optionally mounted in one of said ducts (3 or 4) and is provided with signaling terminals (29 and 27 and 32 and 30, 31, respectively) connected to the inlet (17) and the outlet (28), respectively, as well as to the low pressure regulating side (18) and the high pressure regulating side (15), respectively. At least one valve or the like (6 and 7, respectively), mounted in the other duct (4 and 3, respectively) in relation to the duct (3 and 4, respectively) of the pressure difference regulator, is provided with signaling terminals (23; 34 and 12;33, respectively), connected to its inlet (21 and 24, respectively) and outlet (14 and 22, respectively). The pressure difference regulator is controlled via optional signaling ducts (13 and 16 and 19 and 20 and 25 and 26, respectively) between said terminals.

L'invention concerne un appareil (1) pour la commande de la différence de pression dans un système de chauffage ou de refroidissement, qui comprend : une source de chauffage ou de refroidissement (2) ; un conduit d'amenée (3) ainsi qu'un conduit de retour (4), reliés à la source ; des dispositifs de consommation (5) disposés entre lesdits conduits, qui émettent ou reçoivent la chaleur ; au moins une soupape ou similaire (6, 7 et 8 respectivement) utilisée pour commander le débit dans une boucle, un régulateur de différence de pression (9) utilisé pour maintenir constante la différence de pression entre le conduit d'amenée et le conduit de retour. Le régulateur de différence de pression (9) est éventuellement monté dans un des conduits (3 ou 4) et est doté de bornes de signalisation (219 et 27 et 32 et 30, 31 respectivement) connectées respectivement à l'admission (17) et à la sortie (28), ainsi qu'au côté régulateur de pression basse (18) et au côté régulateur de pression haute (15). Au moins une soupape ou similaire (respectivement 6 et 7), montée dans l'autre conduit (respectivement 4 et 3) par rapport au conduit (respectivement 3 et 4) du régulateur de différence de pression, est dotée de bornes de signalisation (respectivement 22 ;34 et 12 ;33) connectées à son admission (respectivement 21 et 24) et à sa sortie (respectivement 14 et 22). Le régulateur de différence de pression est commandé par l'intermédiaire de conduits de signalisation optionnels (respectivement 13 et 16 et 19 et 20 et 25 et 26) entre lesdites bornes.

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