METHOD OF PRODUCTION OF SET OF PLATES FOR HEAT EXCHANGER Russian patent published in 2014 - IPC F28D9/00 

FIELD: heating.

SUBSTANCE: invention relates to the field of heat engineering and specifically to a method of production of a set (40) of plates for a heat exchanger, formed by a stack of plates (41). The inventive method comprises the stages at which the initial thickness of each plate (41) is reduced by mechanical processing leaving the plates (41) on the periphery, at least one connecting ledge (45) with the height greater than the thickness of the plate (41) after the mechanical processing, the corrugations (42) are made in the central part of the plate (41), the plates (41) are superimposed in pairs on each other, the ledges (45) of the plates (41) of each pair in contact are connected by weld joint (50), the pairs of plates (41) are stacked on each other, positioning the ledges (45) of pairs of plates (41) one above the other, and the ledges (45) of pairs of plates (41) in contact are connected with tight weld joint (50), performing an alternating overlapping on each other of the open or closed ends of input or output of the said liquid medium.

EFFECT: simplification of the manufacturing process, reduction of the amount of welding.

15 cl, 13 dwg