TUBULAR HEAT EXCHANGER Russian patent published in 2009 - IPC F28D7/00 

FIELD: mechanics.

SUBSTANCE: invention relates to heat exchangers that can be used in whatever heat exchange processes. The proposed heat exchanger comprises a cylindrical housing separated by inner crosswise baffles into a heat exchange chamber and a prechamber. One of the baffles is arranged at the inlet of pipe flow, the second baffle separated the prechamber and heat exchange chamber, the third baffle is an end piece that closes the heat exchange chamber. The housing accommodates three types of heat exchange pipes, namely, the main pipes of direct flows that pass through all baffles and pipes of direct and return flows with their ends, arranged at the heat exchanger outlet, interconnected. The prechamber main pipes of direct flows feature orifices arranged at a distance of half the pipe diametre from the baffle at the pipe flow inlet.

EFFECT: preservation of vacuum-suction effect power, increased fraction of return-recirculation part of flow, increased heating or cooling.

3 cl, 2 dwg