SUPPLY-AND-EXHAUST UNIT WITH HEAT RECOVERY Russian patent published in 2022 - IPC F24F12/00 F24F13/24 

FIELD: ventilation and air conditioning.

SUBSTANCE: invention can be used in energy-saving devices of distributed supply and exhaust ventilation with heat recovery. Supply-and-exhaust unit with heat recovery includes heat exchanger (2) with inlet and outlet channels arranged in it in staggered order and flow transformers (7) adjacent to heat exchanger (2). On the reverse side of flow transformers (7) there is internal unit (1) containing inlet and outlet channels, and external unit (3) containing inlet channels. There is inflow fan (4), outgoing channels, exhaust fan (5) and protective casing (6). Flow transformers (7) are made in the form of cells. On one side, each cell has a square shape corresponding to the dimensions and shape of heat exchanger (2) channels. On the other side, the cell has the shape of a narrower rectangle turned relative to the square holes by 45 degrees. Shape of the narrower rectangle corresponds to the dimensions and shape of the channels of the inner and outer units (1) and (3).

EFFECT: improved noise insulation properties, increased efficiency of heat exchange during recuperation and increased compactness of the device.

1 cl, 7 dwg