PLATE HEAT EXCHANGER Russian patent published in 2001 - IPC

FIELD: heat engineering, applicable in heat-exchange and heat-transfer devices. SUBSTANCE: the plate heat exchanger has a stack of plates fastened one to another, having flat surfaces and ducts for passage of one of the two heating media, pipe connections for feed and extraction of the heating media, cylindrical rim inserted in which is a stack of flat disks, each disk has a plane side and a plane-finned side carrying the ducts of the heating medium located concentrically to one another and to the peripheral diameter of the disk, which are restricted by ribs having apexes. Ports equipositioned in circumference are made on the stack disks, part of them is encircled by closed fins, and part communicated with the heating medium ducts. The stack of disks on the side of its ends is closed with bottoms having pipe connections for feed and extraction of the heating media. EFFECT: enhanced working pressures of heating media in the ducts for their passage. 8 cl, 5 dwg