RECUPERATIVE HEAT EXCHANGER Russian patent published in 2009 - IPC F28D1/00 

FIELD: heating.

SUBSTANCE: invention deals with design of heat exchanger devices and is to be implemented to provide for heat media heating and gasification such as in cryogenic plants, steam boilers etc. To provide for the technical result solution a recuperative heat exchanger is proposed consisting of a housing with heat media inlet and outlet nipples and grates with heat exchanger elements mounted onto them arranged in concentric circles. One of the grates represents the bottom while the other - the lid. The heat exchanger elements arranged coaxial relative to one another are mounted on the grates in such a way that some of them are rigidly attached to the bottom, with their ends free, while the others are attached to the lid, with the ends equally free. The heat exchanger elements free ends are directed towards one another so that to collectively form a single circular duct for the heating heat medium transport from the heat exchanger centre towards the periphery. The heat exchanger elements are represented by cylindrical shells each consisting of three rigidly interconnected cylinders in one of them there having been ducts arranged for the heated heat medium circulation. There is a cowling mounted on the bottom-positioned distribution device.

EFFECT: extension of the device functionalities combined with performance improvement.

3 cl, 3 dwg