FIELD: heat exchange.
SUBSTANCE: invention is intended for heat exchange and can be used in heat exchangers. Inner space of heat exchange elements is organized so that pairs of stamped shaped plates forming channels for flow passage are equipped with conical or spherical ledges on facing surfaces, and structured by roller welding for lengthening the path of passing a product along the inner space, for this purpose, alternating longitudinal welded seams, organizing multipath flow movement and forming a curved channel are being welded.
EFFECT: technical result is wider range of technical equipment.
1 cl, 2 dwg
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