HEAT EXCHANGER Russian patent published in 2015 - IPC F28D7/00 

FIELD: heating.

SUBSTANCE: heat exchanger includes external and U-shaped internal tubes built into each other, a connecting flange, heating or cooling medium inlet and outlet branch pipes; the internal tube of the heat exchanger is rigidly attached to the flange of the external tube that has cylindrical shape, plugged on one side and has a flange with heating or cooling medium inlet and outlet branch pipes on the other side; with that, the inlet branch pipe is elongated; a swirl plate in the form of a screw-shaped belt periodically wound in different directions is built into the internal tube. Metal belts with the height allowing free removal of the internal tube are welded to the internal tube along its horizontal surface.

EFFECT: increasing heat release coefficient; enlarging heat exchange surface area; simplifying removal of the heat exchanger.

4 cl, 2 dwg