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US 9,790,604 B2Granted
Replacement component for electrolyser flanges
AssigneeUhdenora S.P.A.
InventorTimo Steyer
Life of this patent
Estimating the term…
Abstract
The invention relates to a cell of a modular electrolyzer having a frame-shaped flange formed by two superposed elements, welded along the internal periphery in order to increase the local flange thickness in a portion of higher exposure to corrosion, for the sake of improving its resistance. A method of repairing electrolysis cells having a frame-shaped flange formed by two superposed elements by removing and replacing only the outermost frame, more subject to corrosion, is also described.
Claims6
A cell of an electrolyzer consisting of a modular arrangement of electrochemical cells, said cell comprising:
- at least one pan-shaped shell having an internal cavity and a peripheral surface;
- a first frame-shaped flange element, being integral with said pan-shaped shell or alternatively secured thereto, having a first internal periphery facing the internal cavity of the pan-shaped shell and a peripheral flange projecting from the peripheral surface of the pan-shaped shell, said first frame-shaped flange element made of a first metallic material, and
- a second frame-shaped flange element being a corresponding mirror image to said first frame-shaped flange element, made of a second metallic material and having a second internal periphery facing the internal cavity of the pan-shaped shell,
- wherein said first frame-shaped flange element and said second frame-shaped flange element are welded throughout the first internal periphery and the second internal periphery, and
- wherein the welding throughout the first and second internal peripheries improves corrosion resistance and increases the thickness of the frame-shaped flange elements.
2 more elements
Dependencies are inferred from the claim text.