Plate heat exchanger, method for its production, and its use (3M Innovative Properties)

Plate heat exchanger, method for its production, and its use (3M Innovative Properties)

Type	Patent
Inventor	Frank Meschke
Inventor	Armin Kayser
URL	Free Full Text Source:  http://www.google.com/patents/US8967238
Assignee	3M Innovative Properties Company
Patent Number	US8967238 B2
Issue Date	Mar 3, 2015
Abstract	The invention relates to a plate heat exchanger composed of a plurality of plates (1), preferably made from sintered ceramic material, in which fluid-flow guide channels (2) are formed as a system of channels in such a way that a substantially meandering profile of the fluid flow is obtained over the surface area of the respective plate, the side walls (3) of the guide channels (2) having a plurality of apertures (4), which lead to turbulence of the fluid flow. The invention also relates to a method for the production of such a plate heat exchanger, in particular by a diffusion welding process in which the plates are joined to form a seamless monolithic block. The plate heat exchanger according to the invention is suitable in particular for applications at high temperatures and/or with corrosive media, and also as reactors.