FIELD: heat exchangers.
SUBSTANCE: heat transfer plate (8a, 8b) and a cassette (57) containing such heat transfer plates (8a, 8b) are proposed for a heat exchanger (2). The heat transfer plate (8a, 8b) contains the first and second opposite sides (22, 24), a section (62) of contact with the first beam and a section (64) of contact with the second beam. The section (62) of contact with the first beam contains the first recess (66) and the first edge section (68) surrounding the first recess (66), and the section (64) of contact with the second beam contains the second recess (72) and the second edge section (74) surrounding the second recess (72). At least a portion of the first edge portion (68) extends from the first plane (54) to a third plane (78) that is parallel to the first plane (54), and at least a portion of the second edge portion (74) extends from the first plane (54) to the fourth plane (80). The heat transfer plate (8a, 8b) differs in that the second and third planes (56, 80) are located on the same side of the first plane (54), the third plane (78) is located at a distance d1 > 0 from the first plane (54 ), so that part of the first edge portion (68) protrudes from the front part (30) of the heat transfer plate (2), and the fourth plane (80) is located at a distance d2 ≥ 0 from the first plane (54). The edge (70) of the first edge section (68) defines the first region (84), and the edge (76) of the second edge section (74) defines the second region (88), the first region (84) being located inside the second region (88).
EFFECT: heat exchangers improvement.
15 cl, 15 dwg
