FIELD: power engineering.
SUBSTANCE: heat-exchange device, comprising facilities to form at least four separate circuits for flows inside the heat exchanger, making it possible to carry out indirect heat exchange between the first circuit and the second circuit, the third circuit and the fourth circuit; at the same time the device may contain facilities to form a separate fifth circuit in the heat exchanger with the possibility to carry out indirect heat exchange between it and the first circuit.
EFFECT: improved method and device to combine zones of heat transfer of spiral, ribbed plate, tubular heat exchangers and a heat exchanger of ribbed pipes, which ensures total efficiency of the process.
25 cl, 5 dwg
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