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

FIELD: heating 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 hollow cylinder with two bottoms, and inlet and outlet parts are made of several hollow cylindrical shell rings with one bottom, with cross section in form of letter C, attached to each other to form inner inlet and outlet cavities so that said cavities are formed by housing and bottom of previous and bottom of next shell rings. Heat exchange element is made in the form of several coaxially installed pipes of different diameter and different length, and on walls of pipes flow turbulence promoters are made in form of local reduction of pipe cross section. 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 tube with formation of annular radial gaps between walls of pipes connected to cavity of first or second components, wherein the cavities of the annular radial gaps of the first and second components are monotonously alternating between each other, wherein input and output branch pipes of the inlet and outlet manifolds are installed in different planes.

EFFECT: improved technical characteristics and expansion of heat exchanger functional capabilities.

1 cl, 3 dwg