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 exchange apparatus comprising a cylindrical housing with input and output branch pipes for inlet and outlet of first and second flows, arranged on the housing, heat exchange elements installed inside the housing in a certain order, which cavities are connected to corresponding cavities of supply and discharge of flows, characterized by that heat exchange 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 shells with one bottom, attached to each other, wherein 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 flows, and monotonously alternating output cavities of first and second flows, wherein heat exchange elements are made in the form of several coaxially installed pipes of different diameter and different length, wherein pipes of larger diameter and shorter length form peripheral part of each heat exchange element, and pipes of smaller diameter and longer length form its central part, wherein inlet and outlet parts of first external pipe of each heat exchange element are installed in bottoms of central part of housing, and each next pipe 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 flows cavity, wherein cavities of annular radial gaps of first and second flows are monotonously alternating.

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

1 cl, 3 dwg