HEAT EXCHANGE UNIT Russian patent published in 2013 - IPC F28D7/10 

FIELD: heating.

SUBSTANCE: heat exchange unit includes a housing made in the form of a cylinder, on end faces of which plates are fixed. Inside the housing, along its axis there arranged are pipes with gaps between themselves and inner surface of the housing. End faces of pipes and the housing are attached to plates so that tightness is provided. Partition walls are mounted between the pipes in inner cavity of the housing. On external end faces of the plates there installed are cover plates, the cavities of which are separated with a diametrical partition wall into two chambers connected to branch pipes for supply and discharge of heat exchange media. Pipes inside the housing are installed concentrically one into another with formation between them and the wall of the housing of annular cavities for flow of cooled and cooling media alternating between themselves in radial direction. On each plate there are through arc-shaped slots interconnected on one half of end surface with annular cavities for cooling media, and on the other half of the end surface with annular cavities for cooled medium. In each annular cavity there installed are partition walls in the form of spirals forming together with pipe walls the spiral channels for flow of cooled and cooling media, which connect the corresponding arc-shaped slots on opposite plates.

EFFECT: invention allows providing the most effective heat exchange of cooling and cooled media at minimum dimensions of the unit, and improving its processibility.

2 cl, 7 dwg