| 摘要 |
FIELD: heating.SUBSTANCE: heat exchange element for a plate-like counter-flow heat exchanger includes a profile sheet and a spacing sheet rigidly attached to it with formation of channels for passage of working medium, which have a triangular cross section in zigzag-shaped operating sections and a rectangular section of smaller height in end straight-line sections for supply and discharge of the working medium; with that, the profile and spacing sheets of the heat exchange element are provided on lateral sides with flange portions of equal height exceeding the height of the cross section of the channel in its operating section, with two slot-type openings for supply and discharge of the working medium, which are located diagonally on the ends of the flange portions, and from below of the spacing sheet on both ends throughout its width there are outwardly bent support legs, with the height equal to difference of heights of the channel in its working zigzag-shaped and straight-line sections.EFFECT: reduction of thermal resistance due to reduction of thickness of material of components of heat exchange elements; improving assembly flexibility and reducing specific metal consumption.19 cl, 8 dwg |
