Process for supplying cold to an open refrigerated enclosure for display and sale of fresh products in a supermarket

摘要

Disclosed is a process for supplying cold to at least one refrigerated enclosure particularly an open enclosure for the display and sale of fresh products in a supermarket, characterized in that:P P a) in the sales point are disposed said open enclosures provided in manner known per se with cold air dispensing and recovery nozzles, passing through the interior of the enclosures, the air streams sweeping the products displayed and the air heating up by taking calories exchanged from the products;PPb) there is positioned in a zone offset with respect to said enclosures and chosen for its convenient access, an air cooling plant principally comprising an evaporator of refrigerant liquid-gas and a ventilator, this plant is furthermore supplied with refrigerant by a refrigerating unit;PPc) the cold air coming from the evaporator of said plant is entrained by forced circulation through appropriate pipes towards said enclosures, the cold air coming from the air cooling plant being delivered to cold air dispensing nozzles serving the enclosures, air recovery nozzles being connected via recycling pipes to said plant for returning the air reheated by passage in the enclosure and returned towards said evaporator to be cooled therein.