| 摘要 |
A ribbed heat exchanger which comprises a plurality of mutually parallel plates which define therebetween passageways for the two media between which a heat exchange shall be effected, wherein each plate, with the exception of the outermost plates, forms a defining surface or limitation between two mutually adjacent passageways. The invention is characterized in that each alternate plate (3) has upwardly folded opposing first edges (7, 8) and each other alternate plate (2, 4) has the two remaining, second edges (5, 6) upwardly folded, wherein the upwardly folded parts (5-8) of each plate are intended to abut an adjacent plate, in that U-shaped strips (9-11) are fitted over each upwardly folded part (5-8), with the inner surfaces of the two limbs (12, 13) of each U-shaped strip (9-11) abutting the mutually remote surfaces of two adjacent plates so as to form mutually parallel passageways (19, 20), of which each alternate passageway extends in one direction and each other alternate passageway extends in a direction at right angles to the first-mentioned passageways, and in that each U-shaped strip (9-11) is sealed against the upwardly folded part (5-8) and the adjacent plate concerned with an elastic adhesive. |
