HEAT EXCHANGER WITH SECONDARY FOLDING Russian patent published in 2015 - IPC B21D53/04 

FIELD: heating.

SUBSTANCE: invention relates to systems for heat transfer between fluid media. A heat exchange element includes a folded plate repeatedly bent and having the first edges connected to each other on the first end and the second edges connected to each other on the second end with formation of an inner volume. The inner volume has the inlet main line near the first end, the outlet main line near the second end and a hole opposite to secondary folding on the folded plate. The folded plate includes hollow ribs, a flow divider located in the inner volume between the inlet main line and the outlet main line; internal apexes of hollow ribs contact the flow divider, and a basic element connected to the perimeter of the hole of the inner volume. The basic element includes an inlet and an outlet, which are interconnected as to fluid medium with the inlet main line and the outlet main line respectively.

EFFECT: improvement of efficiency of flow distribution devices inside each element of the heat exchanger.

30 cl, 46 dwg