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. In heat exchange device containing cylindrical housing with inlet and outlet branch pipes for inlet and outlet of first and second flows, located on housing, heat exchange elements installed inside the housing in a certain order, the cavities of which are connected to corresponding cavities of supply and discharge of flows, according to the invention, the heat exchange device housing is made consisting of inlet, central and outlet parts, wherein central part is made in form of hollow cylinder with two bottoms, and inlet and outlet parts are made of several hollow cylindrical shell rings with one bottom, attached to each other, wherein number of shell rings of inlet part corresponds to number of shell rings of outlet part installed in series on both sides of central part of housing so that they form monotonously alternating input cavities of first and second flows, and monotonously alternating output cavities of first and second flows, wherein heat exchange elements are made in form of several coaxially installed pipes of different diameter and different length, wherein pipes of larger diameter and smaller length form peripheral part of each 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 each 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 flows, wherein the cavities of the annular radial gaps of the first and second components are monotonously alternating.

EFFECT: present invention improves technical characteristics of the heat exchanger and broadens its functional capabilities.

1 cl, 3 dwg