FIELD: machine building.
SUBSTANCE: heat exchange plate for the plate heat exchanger and a plate heat exchanger provided with said heat exchange plate. Heat exchanger plate contains: hole (11) used to form the end hole; a plurality of protuberances (12) disposed around at least a portion of opening (11) along a circular line around opening (11),the plurality of protrusions (12) extending in the direction of one side of plate plane (15); intermediate parts (16) located between at least two adjacent protrusions (12), intermediate parts (16) being located on one side of plate plane (15) and at a predetermined distance from plane (15) of the plate. Distance from the upper parts of protrusions (12) to the plane of the plate is greater than the distance from the lowest points of intermediate parts (16) to the plane of the plate.
EFFECT: heat exchanger plate and the plate heat exchanger of the present invention are provided with a relatively small end opening and can provide a better fluid distribution between the heat transfer channels for the fluid, even in the case of using carbon dioxide as the refrigerant.
13 cl, 16 dwg
