FIELD: heat exchange.
SUBSTANCE: present invention relates to a plate heat exchanger comprising a plurality of heat exchange plates 10 stacked on each other, wherein between the adjacent heat exchange plates 10 there are gaskets, wherein each gasket is located in laying groove 20 formed in the heat exchange plate 10, and bottom part of laying groove 20 determines base level 22, wherein laying groove 20 comprises reinforcing structure having first recess 23 at level of first recess extending in longitudinal direction of laying groove 20, wherein the reinforcing structure at the level of the second recess comprises second recess 25 extending in the longitudinal direction of laying groove 20.
EFFECT: high strength of heat exchanger at high pressures, providing tightness.
14 cl, 9 dwg
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