Opposite flows equipment, particularly for the fast heat reduction in the cooked and raw food preservation cycles even in the freezing

摘要

Opposite double flows equipment, for the fast heat reduction, in food preservation cycles of the type comprising at least three intercommunicating areas, a first one (b) being the reduction chamber, inside of which the food is inserted, and two diametrically opposite ones (c,c') communicating with the first one (b), each one comprising at least one evaporator (7,8) fed by at least one compressor group and corresponding electric impellers (6,6'), using:a halved and opposite single circuit;alternatively, a tandem-like opposite independent double circuit; in which, each evaporator group (7,8) provides a refrigerating circuit comprising a first surface of pipes (7',8') whose finning is subdivided into three separated areas two of which have wider ends than the central portion, said surface of finned pipes having a transversal development from one wall to another (9,9') of the relative chamber, whilst the usually empty rear part, that is the intrudes, provides a second surface of pipes (7",8") of the unfinned type whose extension is almost equal to said first one (7',8').