Patent ID: 9134073
Filing Date: 2015-09-15
Classification: F28D,F28F,Y10T

Abstract:
1. A heat exchanger comprising: a plurality of vertical angle irons, each vertical angle iron comprising an one-piece metal profile and defining an internal surface and having horizontal openings; a plurality of vertical rails inserted into the vertical angle irons; a closed chamber defining side walls delimiting the closed chamber, the side walls being fixed to the vertical rails; a plurality of welded plates, inside the closed chamber, the welded plates being superposed and alternated and stacked one above the other, the plates defining between them interpenetrating independent circuits configured to have fluids flowing therein, each plate having ribs configured so as to form, when the plates are stacked, independent and interpenetrating ducts, in which hot and cold fluids flow, each plate including a plurality of corners, each corner including a horizontal edge, wherein: each vertical angle iron has a central portion defining a bend formed vertically along the one-piece metal profile, each bend having a shape corresponding to the shape of the horizontal edges, the horizontal openings being formed at the level of the central portion of the angle irons; a horizontal edge of a first corner of a first plate, of the plurality of plates, fits into a first horizontal opening of a first angle iron, of the plurality of angle irons, such that an end of the horizontal edge of the first corner of the first plate is flush with the internal surface of the first angle iron, a horizontal edge of a second corner of the first plate fits into a first horizontal opening of a second angle iron, of the plurality of angle irons, such that an end of the horizontal edge of the second corner of the first plate is flush with the internal surface of the second angle iron, and a horizontal edge of a third corner of the first plate fits into a first horizontal opening of a third angle iron, of the plurality of angle irons, such that an end of the horizontal edge of the third corner of the first plate is flush with the internal surface of the third angle iron; and a plurality of weld beads, in line with the horizontal openings, to facilitate mechanical bonding between the edges of the plates and the angle irons.