Profiled rectangular heat transfer plate and compact plate heat exchanger produced with same

摘要

The plate (3) has a thermal active surface (17) limited on both sides by plate sections (12, 12a) with a passage opening (8, 9). The plate sections are formed outside the surface and diagonally offset to the plate. The plate sections are attached to the surface so that the surface flows directly over the opening. A circumferential profile-free welded edge (20) at front transitions (6, 6a) from the limitation of the surface to the plate sections and diagonally opposite edges (7, 7a) of the surface are formed with radii corresponding to a same radius that the plate sections revolves. An independent claim is also included for a compact plate heat exchanger with a profiled rectangular heat transfer plate.