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 is made consisting of inlet, central and outlet parts, wherein 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 with formation of internal inlet and outlet cavities. Number of shell rings of inlet part corresponds to number of shell rings of outlet part. Heat exchange element is made in the form of several coaxially installed pipes of different diameter and different length, and on 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, wherein input and output 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 flow. Cavities of annular radial gaps of the first and second flows are monotonously alternating between each other, and the size of the gaps increases from the periphery to the center, at that inlet and outlet branch pipes of inlet and outlet manifolds are installed in different planes.

EFFECT: this invention improves technical characteristics and expands functionalities of the heat exchanger.

1 cl, 3 dwg