Pack of heat transfer plates for regenerative heat exchanger as well as process and apparatus for making profiled plates for this pack

• Main Authors: KAASTRA, SIMON, KOESTER, GERD
• Format: Patent
• Language: English; French; German
• Published: 28.02.1996
• Edition: 5
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WEAPONS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

A stack 1 of heating plates for regenerative heat exchangers is proposed which consists of a multiplicity of superimposed plates 2 which leave flow ducts 4 free between them and have at least in part a profiled structure 3, e.g. embossments, and bear a coating, for example an enamel layer, serving as surface protection. This stack 1 of heating plates is characterised in this case by a profiled structure 3 of the plates 2 in which at least the rim edges of the respectively adjacent directly superimposed plates 2 and 2a, 2b extend at all points at a minimum spacing 8 from one another or are aligned with respect to one another free from contact. The rim edges of the plates 2 and, if necessary, the material accumulations of the coating that occur at the rim edges as a consequence of production are protected in this way against flaking.