Medium temperature refrigerated merchandiser

A - Human Necessities – 47 – F

Patent

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Details

A47F 3/04 (2006.01) F25B 39/02 (2006.01) F28D 1/00 (2006.01) F28D 1/02 (2006.01) F28D 1/04 (2006.01)

Patent

CA 2549023

A refrigerated merchandiser (100) includes an upright, open-front, insulated cabinet (110) defining a product display area (125) connected in airflow communication with a compartment (120) via an air circulation circuit (122, 114, 116). A high pressure drop evaporator (40) and a plurality of closely spaced fans (70) are disposed within compartment (120). The evaporator (40) is provided with a relatively high fin density heat exchanger coil providing a relatively high air side pressure drop through the evaporator. The increased flow resistance through the evaporator coupled with the plurality of closely spaced fans results in a substantially uniform evaporator outlet temperature profile across the length of the evaporator.

Selon la présente invention, un îlot de vente réfrigéré (100) comprend une armoire verticale, isolée, à ouverture frontale (110) constituant une zone de présentation de produit (125) qui communique par un passage d'air avec un compartiment (120) via un circuit de circulation d'air (122, 114, 116). Un évaporateur de baisse de pression élevée (40) et une pluralité de ventilateurs étroitement espacés (70) sont disposés au sein du compartiment (120). Cet évaporateur (40) est pourvu d'une bobine d'échangeur thermique de densité d'ailettes relativement élevée qui fournit une baisse de pression latérale d'air relativement élevée à travers l'évaporateur. La résistance d'écoulement accrue de part l'évaporateur couplé à la pluralité de ventilateurs étroitement espacés débouche sur un profil thermique de sortie d'évaporateur sensiblement uniforme, sur la longueur de l'évaporateur.

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