Stacked-plate heat exchanger
AssigneeTenez A.S.
InventorsVaclav Machata, Karel Hubacek, Edmund Neubauer, Karel Tvrdy, Jaromir Tecl, Zdenek Matejka, Tomas Zvolanek
Life of this patent
Estimating the term…
Abstract
A stacked-plate heat exchanger. The plates are welded together alternately along lateral ridges and flanges formed around the periphery of the plates. The plates are also welded along the circumference of intake-and-outlet openings.
Claims14
In a stacked-plate heat exchanger, wherein several corrugated and generally rectangular plates, each of which including a midplane having undulations formed therein, are stacked and welded together to be sealed off from the environment, and having hollow spaces formed between the plates and intake-and-outlet openings at the corners, with alternating spaces being occupied by one of two fluids which exchange heat, the improvement comprising:
- a lateral flange (4) at the periphery of the plates and surrounding a lateral ridge (3), the lateral flange being parallel to the midplane and lying in a plane defined by crests of the undulations on one side of the midplane, and the lateral ridge being parallel to the midplane and lying in a plane defined by crests of the undulations on the other side of the midplane;
- wherein the intake-and-outlet openings (2) provided in each plate for one of the fluids are surrounded by annular ridges (9) in substantially the same plane as the lateral ridge, and the outlet-and-intake openings for the other fluid are surrounded by annular ridges (5) in substantially the same plane as the lateral flange;
- adjacent plates being welded together along the lateral ridges and along the annular ridges, or cylindrical flanges (5a, 9a) adjacent thereto, to produce a subassembly, and adjacent subassemblies being welded along abutting lateral flanges and along abutting annular ridges, or their adjacent cylindrical flanges.
Dependencies are inferred from the claim text.