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

摘要

A heat exchanger plate (4, 6, 8) and a plate heat exchanger comprising such a heat exchanger plate are provided. The heat exchanger flat plate has a vertical central axis (y) that divides the heat exchanger flat plate into a left half and a right half (20, 22) separated by first and second long sides (24, 26), respectively. ). Furthermore, the heat exchanger flat plates (4, 6, 8) are divided into upper and lower halves (28, 28) separated from the heat exchanger flat plates by the first and second short sides (32, 34), respectively. 30) having a horizontal central axis (x) that divides. Also, the heat exchanger flat plate (4, 6, 8) has a reference point (80) that coincides with the center point (C) of the largest virtual circle (82) that can fit snugly into the port hole. Having port holes (36, 38, 42, 44). Port holes are located in the left and right halves. In the heat exchanger flat plate, the port hole is a plurality of corner points (66, 68, 70) of the geometric figure (72) of the virtual plane, and at least one of the plurality of corner points is the circle. Having a shape defined by a plurality of corner points and an equal number of curves (74, 76, 78) connecting the corner points. The first corner point (66) of the plurality of corner points is a first distance (d1) from the reference point closest to the transition portion (84) between the first short side portion and the first long side portion. ). The second corner point (68) of the plurality of corner points is located closest to the first corner point in the clockwise direction at a second distance (d2) from the reference point. The third corner point (70) of the plurality of corner points is located closest to the first corner point in the counterclockwise direction at a third distance (d3) from the reference point.