| CPC F24F 7/08 (2013.01) [F24F 12/006 (2013.01); F24F 2221/17 (2013.01)] | 16 Claims |
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1. A decentralized supply and extract unit, with waste heat recovery, designed to be mounted into an external wall of a building, said decentralized supply and extract unit having an indoor module and, adjoining thereto, a heat-exchange module, comprising:
a cylindrical heat exchanger with a plurality of heat-exchange air ducts, located along an axis of symmetry of the cylindrical heat exchanger, said air ducts adjoining each other, forming a continuous corrugated volume of heat-exchange segments,
a first separator and a second separator for separating and directing extraction and supply air flows in opposite directions in the heat-exchange air ducts, wherein the first separator and the second separator adjoin the cylindrical heat exchanger, at both end surfaces thereof, and are installed on the axis of symmetry of same,
a first fan and a second fan each comprising a housing, each of which adjoins the first separator and the second separator respectively, at ends of the separators facing away from the cylindrical heat exchanger, and wherein an axis of one of the fans is located parallel but not aligned with an axis of the other fan,
wherein the cylindrical heat exchanger is corrugated;
wherein the first separator and the second separator are separate elements from the cylindrical heat exchanger,
have a total cross section which corresponds to a total cross section of the cylindrical heat exchanger,
contain channels, which are an extension of the air ducts of the cylindrical heat exchanger, forming, together with the air ducts, a continuous volume also corrugated in shape,
have external end holes, facing away from the cylindrical heat exchanger, every second external hole being closed off completely, and
internal distribution holes, facing towards the axis of symmetry of the cylindrical heat exchanger, every second hole of the external end holes being closed off completely and being offset by one of the channels of a respective separator, relative to the external end holes.
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