Heat transfer plate and plate heat exchanger comprising such a heat transfer plate

摘要

A heat transfer plate (8) and a plate heat exchanger (2) comprising such a heat transfer plate is provided. The heat transfer plate has a central extension plane (c-c) and comprises a first end area (28), a heat transfer area (32) and a second end area (30) arranged in succession along a longitudinal center axis (y) of the heat transfer plate. The longitudinal center axis divides the heat transfer plate into a first and a second half (20, 22). The first end area comprises an inlet port hole (34) arranged within the first half of the heat transfer plate, a distribution area (42) and a transition area (44). The transition area adjoins the distribution area along a first borderline (46) and the heat transfer area along a second borderline (48). The distribution area has a distribution pattern of distribution projections (64) and distribution depressions (66) in relation to the central extension plane, the transition area has a transition pattern of transition projections (84) and transition depressions (86) in relation to the central extension plane and the heat transfer area has a heat transfer pattern of heat transfer projections (112) and heat transfer depressions (114) in relation to the central extension plane. The transition pattern differs from the distribution pattern and the heat transfer pattern. An imaginary straight line (92) extends between two end points (94, 96) of each transition projection with an angle (a) in relation to the longitudinal center axis. This angle is varying between the transition projections and increasing in a direction from the first long side to the second long side.