Non-chokable plate heat exchanger

摘要

The characteristic feature in this case is that the material flows participating in the heat exchange can pass the flow gaps 21, 32 between the plates 3, 4 in an unhindered freeflow. In order to enable the end plates which are used to clamp the plate assembly to be constructed as simply as possible, two differently profiled plates 3, 4 are provided which are installed alternately in sequence. Given a purely metallic contact of the adjacent heat exchanging plates 3, 4, flow gaps 21, 32 of large flow cross-section can be achieved by serially, stamped support surfaces 29, bearing surfaces 25, contact surfaces 30 and mating surfaces 28. Since the stampings 25, 28-30 remain in the range of thickness of the sealing elements 14 on the circumferential side, at least in the case of one plate 3, no stampings 25, 28-30 or transverse grooves 20 project transversely. The end plates can therefore be constructed flat. <IMAGE>