FIELD: heating.
SUBSTANCE: invention relates to plate-like heat exchanger (9) containing a row of heat exchange plates (1, 13) comprising at least one section having bulges (2, 3, 14, 15) designed for installation against the corresponding bulges (2, 3, 14, 15) of heat exchange plate (1, 13) of the corresponding design. A provision is made for at least the first type of bulges (2, 14) and at least the second type of bulges (3, 15); with that, at least bulges (2, 14) of the first type and/or at least bulges (3, 15) of the second type have in fact flat upper surface (4, 5, 19, 20) and/or lower surface (4, 5, 19, 20); with that, total surface area of the first vertexes of the first bulges is less than total surface area of the second vertexes of the second bulges.
EFFECT: improved heat exchange and simpler design of a heat exchanger.
13 cl, 9 dwg
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