摘要 |
<p>A thin sheet heat exchanger (8) which facilitates the transfer of heat between two flowing streams of gas (70, 80). The heat exchanger (8) is formed of a packing of rectangular heat exchanger plates (10) positioned by the method of the present invention separately and parallelly to one another. The packing realizes a crossflow channel pattern for the two gas streams (70, 80). The heat exchange plates (10) which compose the bulk of the heat exchanger (8) are, by the method of the present invention, folded at two opposite sides (17a, 17b). The plates (10) are stacked as prescribed by the method of this invention, and sealed along the folded sides (17a, 17b) of each pair of consecutive plates (10), thus forming individual gas channels (70, 80). Also by the method of the present invention gasket sealing surfaces (25) and flange mounting surfaces are realized by the said folds of the said heat exchange plates. A heat exchanger system can be constituted by a plurality of said heat exchangers (8) assembled, by the method of the invention, to realize a desired combination of flow patterns.</p> |