HEAT EXCHANGER Russian patent published in 2020 - IPC F28D7/10 

FIELD: heat exchange equipment.

SUBSTANCE: invention 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, 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. Inlet and outlet parts of first external pipe of heat exchange element are installed in bottoms of central part of housing. 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 first or second components cavity. Height of annular cavities uniformly decreases from periphery to center, at that cavities of annular radial gaps of the first and second components are monotonously alternating.

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

1 cl, 3 dwg