FIELD: applicable in power engineering, can also be used in heat-exchange apparatuses both with liquid and gaseous heat-transfer agents.
SUBSTANCE: the heat-exchange apparatus has banks of parallel heat-exchange elements vertically positioned in the shell, made in the form of spatially-spiral coils, whose ends are fastened on the tube plates and form separate hexahedral modules combined in a block, the heat-exchange elements are turned relative to the axis of symmetry of the block through angle α, determined by formula: 
where n - the quantity of rows in a hexahedral module located around the central element. The distance between the centers of the modules H and the distance between the centers of the heat-exchange elements T are bound up by dependence 
Besides, in each hexahedral module the central coil and one coil located in similar vertices of each concentric hexagon and lying on the same straight line from the center of the given module to the vertex of the outer hexagon of the given module have by one turn less as compared with the quantity of turns of other coils, the overall dimensions of the tube plates are smaller than those of the hexahedral module.
EFFECT: maximized use of the heat-exchange space of the heat-exchange apparatus, improved mass and dimensional and heat-hydraulic characteristics, simplified process of assembly of the apparatus.
3 dwg
