AXIAL HEAT EXCHANGER Russian patent published in 2010 - IPC F28D7/16 

FIELD: heating.

SUBSTANCE: in axial heat exchanger containing longitudinal external channel for the first gas medium, which passes along the axis, and many parallel internal channels for the second fluid medium, the internal channels are located in external channel so that they pass inside the above external channel in axial direction with possibility of heat transfer between the above first gas medium and second fluid medium; at that, at least one internal channel is attached at least to one elongated plate which passes in axial direction along the above internal channel so that it coincides with direction of flow of the first gas medium in external channel; at that, heat exchanger includes central channel passing along the centre or central axis of heat exchanger for distribution of the second fluid medium through internal channels.

EFFECT: improving heat transfer, especially at small difference of fluid and gas temperatures.

9 cl, 12 dwg