HEAT AND MASS EXCHANGE APPARATUS (VARIANTS) Russian patent published in 2023 - IPC F28B5/00 F25B39/00 

FIELD: heat and mass exchange devices.

SUBSTANCE: heat and mass exchange devices used as evaporators of liquids containing several components with different boiling temperatures, as well as condensers of liquids from gas and vapour mixtures. The design of the heat and mass transfer apparatus can be used especially effectively as evaporators for supplying heat to the lower part of the mass transfer apparatus. The design of the heat and mass exchange apparatus includes a cylindrical body in which one or more radial-spiral heat exchange blocks are installed. In the internal cylindrical space of the heat exchange blocks, a pipe with an annular partition is installed concentrically with the axis of the apparatus.

FIELD: increased efficiency of heat exchange, elimination of stagnant zones and maintenance during operation, reduced heat exchange surface area requirements, and reduced weight and size of the device.

3 cl, 2 dwg