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 exchanger comprises housing consisting of inlet, central and outlet parts. Central part is made in the form of a hollow cylinder with two bottoms, and inlet and outlet parts are made of several hollow cylindrical shells with one bottom, which are attached to each other. Number of shells of inlet part corresponds to number of shells 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 components, and monotonously alternating output cavities of first and second components. Heat exchange element is made in the form of several coaxially installed pipes of different diameter and different length. Input and output parts of the first external pipe of the heat exchange element are installed in the bottoms of the central part of the housing. 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 components. Height of annular cavities uniformly decreases from periphery to center, wherein cavities of annular radial gaps of first and second components are monotonously alternating between each other.

EFFECT: present invention ensures uniformity of heating of shells and accordingly increases efficiency of heat exchanger operation.

1 cl, 3 dwg