HEAT EXCHANGER Russian patent published in 2019 - IPC F28D7/10 

FIELD: heat exchange equipment.

SUBSTANCE: invention relates to heat exchange technology and can be used to create heat exchangers. Heat exchanging device housing consists of inlet, central and outlet parts. Central part is made in the form of a hollow cylinder with two bottoms. Inlet and outlet parts are made of several hollow cylindrical shells with one bottom, with cross section in form of letter C, attached to each other to form internal inlet and outlet cavities so that said cavities are formed by body and bottom of previous and bottom of next shells. Heat exchange element is made in the form of several coaxially installed pipes of different diameter and different length, and on the walls of pipes there are flow turbulators. Pipes of larger diameter and smaller length form peripheral part of heat exchange element, and pipes of smaller diameter and longer length form its central part. Inlet and outlet parts of first external pipe of heat exchange element are installed in bottoms of central part of housing, and each next tube of heat exchange element is installed in bottoms of inlet and corresponding outlet parts inside previous pipe with formation of annular radial gaps between walls of pipes, connected to cavity of first or second flows, wherein the cavities of the annular radial gaps of the first and second flows are monotonously alternating between each other, and the value of the gaps increases from the periphery to the center.

EFFECT: technical result is improvement of technical characteristics and expansion of functional capabilities of heat exchanger.

1 cl, 3 dwg