Start-up method and apparatus in refrigeration chillers

F - Mech Eng,Light,Heat,Weapons – 25 – B

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Details

F25B 41/06 (2006.01) F25B 1/047 (2006.01) F25B 31/00 (2006.01) F25B 49/02 (2006.01)

Patent

CA 2290398

The existence of inverted start conditions in a refrigeration chiller (10) is identified by sensing the liquid level (64, 68) in the chiller evaporator (20). That liquid level (64, 68) is indicative of the location of the chiller's refrigerant charge at start-up. If the sensed liquid level (64, 68) is below a predetermined level, an inverted start condition is verified to exist. Failed starts and chiller system shutdowns are reduced or avoided.

L'existence de conditions de mise en route inversées dans un refroidisseur (10) d'eau est identifiée par détection du niveau (64, 68) de liquide dans l'évaporateur (20) de refroidisseur. Ce niveau (64, 68) est indicateur du lieu où se trouve la charge réfrigérante du refroidisseur lors de la mise en route. Si le niveau (64, 68) de liquide détecté est inférieur à un niveau prédéterminé, un état de mise en route inversé est confirmé. Les défaillances de mise en route et les arrêts du système refroidisseur sont ainsi réduits ou évités.

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