FAST DEFROSTING SYSTEM Russian patent published in 2016 - IPC F25B47/02 F25D21/06 

FIELD: cooling.

SUBSTANCE: invention relates to a vapour compression refrigeration plant. Plant includes a compressor, a condenser, an intake manifold, a liquid collector and multiple evaporators. Each evaporator has corresponding expansion or other coolant supply device, through which coolant flows from condenser through inlet manifold to corresponding evaporator when compressor performs recirculation of coolant through a capacitor and by means of inlet and fluid manifolds through corresponding condenser in refrigerating cycle. There are multiple defrost receivers, each connected with corresponding heat accumulating unit and with corresponding one of evaporators so that before passing through corresponding expansion or other coolant feeding device during cooling cycle, coolant flows from condenser through liquid collector and defrost receiver. Heat-retaining unit represents material with reversible phases installed in such heat exchange contact with coolant flowing through corresponding defrost receiver, that material with reversible phases is melted, when it collects heat from coolant in cooling cycle. Each evaporator has a valve device that is installed to isolate respective evaporator and defrost receiver from inlet and fluid collectors in defrosting cycle of corresponding evaporator, as well as to connect corresponding evaporator with corresponding defrost receiver for formation of defrosting loop, in which coolant from corresponding defrost receiver transmits accumulated heat energy from material with reversible phases in corresponding heat accumulation unit corresponding to evaporator.

EFFECT: invention provides a defrosting system, which provides fast and energy-efficient defrosting of evaporator.

4 cl, 6 dwg