Plate heat exchanger and method of making same
AssigneeXcellsis GmbH
InventorsDietmar Heil, Bruno Motzet, Konrad Schwab, Alois Tischler, Marc Weisser
Life of this patent
Estimating the term…
Abstract
Plate heat exchanger has heat transfer plates which exhibit a patterning and are stacked one above the other. Primary sided flow channels for a first heat exchanger medium to be evaporated, and secondary sided channels for a second heat exchanger heat carrier medium are formed between the plates. The primary sided and/or the secondary sided flow channels are formed between two adjacent heat transfer plates, whose patterning meshes at least partially, while maintaining a minimum spacing.
Claims21
Plate heat exchanger, comprising:
- heat transfer plates which exhibit a patterning stacked one above the other, and between which primary sided flow channels are formed for a first heat exchanger medium to be evaporated, and secondary sided channels are formed for a second heat exchanger heat carrier medium, wherein at least some of the primary sided and secondary sided flow channels are formed between two adjacent heat transfer plates, with patterning meshing at least partially, while maintaining a minimum spacing;
- wherein
- the primary sided flow channels have two patternings extending essentially in the same direction and the secondary sided flow channels have flow channels with patterning extending in the opposite direction such that cross channel structures are produced;
- and
- the heat transfer plates have a fishbone-like patterning wherein the angle of sweep of the fishbone-like patterning decreases relative to the center axis in the direction of flow of the medium.
A method of making a plate heat exchanger, which includes heat transfer plates stacked one above the other to form respective primary sided flow channels for a first heat exchanger medium and secondary sided flow channel for a second heat exchanger medium, said method comprising:
- embossing patterning into a plurality of sheet metal plates with elevations and depressions,
- stacking said plates one above the other while maintaining minimum spacing with respective patterning elevations and depressions of one plate meshing with corresponding respective depressions and elevations of an adjacent plate, and
- connecting said plates together;
- wherein
- the primary sided flow channels have two patternings extending essentially in the same direction and the secondary sided flow channels have flow channels with patterning extending in the opposite direction such that cross channel structures are produced;
- and
- the heat transfer plates have a fishbone-like patterning wherein the angle of sweep of the fishbone-like patterning decreases relative to the center axis in the direction of flow of the medium.
Dependencies are inferred from the claim text.