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1. (WO2003058142) A PLATE PACKAGE, METHOD OF MANUFACTURING A PLATE PACKAGE, USE OF A PLATE PACKAGE AND PLATE HEAT EXCHANGER COMPRISING A PLATE PACKAGE

Pub. No.:    WO/2003/058142    International Application No.:    PCT/SE2002/002325
Publication Date: Jul 17, 2003 International Filing Date: Dec 13, 2002
IPC: B21D 53/04
F28D 9/00
Applicants: ALFA LAVAL CORPORATE AB
BLOMGREN, Ralf
GRÖNWALL, Jan
Inventors: BLOMGREN, Ralf
GRÖNWALL, Jan
Title: A PLATE PACKAGE, METHOD OF MANUFACTURING A PLATE PACKAGE, USE OF A PLATE PACKAGE AND PLATE HEAT EXCHANGER COMPRISING A PLATE PACKAGE
Abstract:
The invention refers to a plate package for a plate heat exchanger, a method for manufacturing a plate package, a use of a plate package, and a plate heat exchanger. The plate package includes a plurality of heat exchanger plates (1), which are stacked on each other and which each includes a number of portholes. The plates (1) are compression moulded and permanently connected to each other in a number of joints in such a manner that the plates between each other form a first passage for a first fluid and a second passage for a second fluid. The plate package is designed to permit at least one of said fluids to flow through the respective passages at a predetermined maximum working pressure. The plate package has an increased strength achieved by subjecting at least one of said passages to at least one of said passages to at least a local inner plastic plastic deformation of the plate package.