FIELD: heat exchange.
SUBSTANCE: invention relates to heat exchangers and can be used in power engineering and transport. Heat exchanger contains a cylindrical housing, inlet and outlet branch pipes for supply and removal of the first heat carrier, and also inlet and outlet branch pipes for supply and removal of the second heat carrier. Inside the body there are tube plates, in which pipes are fixed, along which the second heat carrier moves. Pipes pass through holes in partition, which is surface of closed direct helicoid with variable pitch. Pipes in tube bundle have cone-shaped recesses on outer surface, and cone-shaped projections on inner surface.
EFFECT: increased heat and heat efficiency of heat exchanger operation.
5 cl, 4 dwg
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