WO2012172021A1 - Replacement component for electrolyser flanges - Google Patents
Replacement component for electrolyser flanges Download PDFInfo
- Publication number
- WO2012172021A1 WO2012172021A1 PCT/EP2012/061360 EP2012061360W WO2012172021A1 WO 2012172021 A1 WO2012172021 A1 WO 2012172021A1 EP 2012061360 W EP2012061360 W EP 2012061360W WO 2012172021 A1 WO2012172021 A1 WO 2012172021A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flange element
- metallic material
- flange
- cell
- wall
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/02—Diaphragms; Spacing elements characterised by shape or form
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/04—Diaphragms; Spacing elements characterised by the material
- C25B13/05—Diaphragms; Spacing elements characterised by the material based on inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
Definitions
- the invention relates to a cell element of an electrolyser comprised of a modular arrangement of electrochemical cells, each cell including at least one pan- shaped shell comprising two flange elements in form of frames mutually welded along their internal periphery.
- the addition of a second flange element allows increasing the overall flange thickness in a zone of higher exposure to corrosion thereby improving the corrosion resistance thereof.
- the invention also provides a quick, cheap and effective method of repairing a flange damaged by corrosion.
- Flange corrosion phenomena affecting electrolysers are known to those skilled in the art. These phenomena take place especially in outer flange zones, in correspondence of gaskets. In such zones in fact, the stagnation of corrosive substances and the lack of oxygen needed for supporting passivation and hence for ensuring protection of the metallic material favour the onset of corrosion. To prevent these phenomena it is possible to rely on the activation of the flange by coating the same with a catalytic layer, for instance made of platinum or ruthenium oxide. This procedure is nevertheless complicated since coating with a catalyst requires high temperature treatments which may bring about a deformation of the flange.
- the invention relates to a cell of an electrolyser consisting of a modular arrangement of electrochemical cells, each cell comprising at least one pan consisting of a back-wall and a first flange element in form of frame made of a first metallic material, said first flange element integral with said back-wall or alternatively secured thereto along the periphery, a second flange element in form of planar frame made of a second metallic material fixed to said first flange element, said fixing being a weld localised along the internal edges of said first flange element and said second flange element.
- This type of solution allows protracting the lifetime of the flange against corrosion phenomena upon increasing the flange thickness.
- the application of the planar frame only in correspondence of the flange portion more sensitive to corrosion rather than on the entire back-wall allows a remarkable material savings.
- the invention relates to a method of repairing a cell of an electrolyser consisting of a modular arrangement of electrochemical cells, each comprising a pan consisting of a back-wall and a first flange element in form of frame made of a first metallic material, said first flange element integral with said back-wall or alternatively secured thereto along the periphery, said first flange element being damaged by corrosion, comprising fixing a second flange element in form of planar frame of a second metallic material to said first flange element, wherein said fixing is a weld localised along the internal edges of said first flange element and said second flange element.
- the operation results much easier and more advantageous than those of the prior art involving a clean zone without directly concerning the corrosion zone.
- said first metallic material of said first flange element and said second metallic material of said second flange element are the same material.
- said first metallic material of said first flange element is titanium and said second metallic material of said second flange element is an alloy of titanium and palladium.
- the invention relates to a method of repairing a cell of an electrolyser consisting of a modular arrangement of electrochemical cells, said cell comprising a pan consisting of a back-wall and a first flange element in form of frame made of a first metallic material, a second flange element in form of planar frame of a second metallic material secured to said first flange element, wherein said fixing is a weld localised along the internal edges of said first flange element and said second flange element, comprising the removal of said second flange element in form of planar frame, if damaged by corrosion, from said first flange element, the subsequent fixing of a new flange element in form of planar frame, wherein said fixing is a weld localised along the internal edges of said first flange element and said new flange element.
- the drawing shows a three-dimensional schematic exploded view of a possible embodiment of the invention comprising a pan, a frame and a gasket.
- FIG. 1 An embodiment of the invention is shown in the figure, comprising a pan 1 consisting of a back-wall 5 and a first frame-shaped flange element 6.
- a pan 1 consisting of a back-wall 5 and a first frame-shaped flange element 6.
- said first flange element 6 is welded thereto along the periphery 7.
- a second flange element in form of planar frame 2 is secured by welding along the internal perimeter of the two frames 4 covering the zones affected by corrosion 8.
- a gasket 3 is then arranged above the second flange element 2.
Landscapes
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Metals (AREA)
- Cookers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020137032851A KR20140034216A (en) | 2011-06-14 | 2012-06-14 | Replacement component for electrolyser flanges |
EA201490003A EA025857B1 (en) | 2011-06-14 | 2012-06-14 | Replacement component for electrolyser flanges |
JP2014515196A JP5977821B2 (en) | 2011-06-14 | 2012-06-14 | Replacement parts for electrolytic cell flanges |
BR112013029759-0A BR112013029759B1 (en) | 2011-06-14 | 2012-06-14 | AN ELECTROLYZER CELL CONSISTING OF A MODULAR ARRAY OF ELECTROCHEMICAL CELLS, AND METHOD OF REPAIRING AN ELECTROLYZER CELL OF A MODULAR ARRAY OF ELECTROCHEMICAL CELLS |
EP12731342.7A EP2721200B1 (en) | 2011-06-14 | 2012-06-14 | Replacement component for electrolyser flanges |
US14/113,272 US9790604B2 (en) | 2011-06-14 | 2012-06-14 | Replacement component for electrolyser flanges |
CN201280027318.8A CN103797158B (en) | 2011-06-14 | 2012-06-14 | For the replaceable parts of the flange of electrolyzer |
CA2834201A CA2834201A1 (en) | 2011-06-14 | 2012-06-14 | Replacement component for electrolyser flanges |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001070A ITMI20111070A1 (en) | 2011-06-14 | 2011-06-14 | REPLACEMENT COMPONENT FOR ELECTROLYZER FLANGES |
ITMI2011A001070 | 2011-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012172021A1 true WO2012172021A1 (en) | 2012-12-20 |
Family
ID=44358263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/061360 WO2012172021A1 (en) | 2011-06-14 | 2012-06-14 | Replacement component for electrolyser flanges |
Country Status (10)
Country | Link |
---|---|
US (1) | US9790604B2 (en) |
EP (1) | EP2721200B1 (en) |
JP (1) | JP5977821B2 (en) |
KR (1) | KR20140034216A (en) |
CN (1) | CN103797158B (en) |
BR (1) | BR112013029759B1 (en) |
CA (1) | CA2834201A1 (en) |
EA (1) | EA025857B1 (en) |
IT (1) | ITMI20111070A1 (en) |
WO (1) | WO2012172021A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8494477B2 (en) * | 2011-06-24 | 2013-07-23 | Intel Corporation | Power management for an electronic device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3877730A (en) * | 1974-02-12 | 1975-04-15 | Atomic Energy Commission | Method of repairing a flange face of a clamped-flange sealing-ring type pipe coupling |
EP0187273A1 (en) * | 1984-12-17 | 1986-07-16 | The Dow Chemical Company | A monopolar or bipolar electrochemical terminal unit having an electric current transmission element |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4108752A (en) * | 1977-05-31 | 1978-08-22 | Diamond Shamrock Corporation | Electrolytic cell bank having spring loaded intercell connectors |
JPH0674513B2 (en) * | 1985-10-23 | 1994-09-21 | 旭化成工業株式会社 | Bipolar electrolytic cell unit |
BR9002199A (en) * | 1989-05-09 | 1991-08-13 | Dow Chemical Co | ELECTROLYTIC CELL SET, ANTI-CORROSION MATERIAL AND METHOD TO PREVENT TITANIUM FISSURE CORROSION IN ELECTROLYTIC CELL ASSEMBLY STRUCTURE |
US5454925A (en) * | 1994-05-03 | 1995-10-03 | Eltech Systems Corporation | Repair of mesh electrode spaced from electrode pan |
SK285920B6 (en) * | 1999-05-10 | 2007-11-02 | Ineos Enterprises Limited | Electrode structure |
JP3696137B2 (en) * | 2000-09-08 | 2005-09-14 | 株式会社藤田ワークス | Method for producing electrolytic cell unit and electrolytic cell unit |
ITMI20010401A1 (en) * | 2001-02-28 | 2002-08-28 | Nora Tecnologie Elettrochimich | NEW BIPOLAR ASSEMBLY FOR FILTER-PRESS ELECTROLIZER |
JP4426415B2 (en) * | 2004-10-01 | 2010-03-03 | 東洋エンジニアリング株式会社 | Reactor |
JP4539742B2 (en) * | 2008-03-18 | 2010-09-08 | Tdk株式会社 | Electrochemical devices |
-
2011
- 2011-06-14 IT IT001070A patent/ITMI20111070A1/en unknown
-
2012
- 2012-06-14 WO PCT/EP2012/061360 patent/WO2012172021A1/en active Application Filing
- 2012-06-14 EA EA201490003A patent/EA025857B1/en not_active IP Right Cessation
- 2012-06-14 KR KR1020137032851A patent/KR20140034216A/en not_active Application Discontinuation
- 2012-06-14 EP EP12731342.7A patent/EP2721200B1/en active Active
- 2012-06-14 CA CA2834201A patent/CA2834201A1/en not_active Abandoned
- 2012-06-14 CN CN201280027318.8A patent/CN103797158B/en active Active
- 2012-06-14 US US14/113,272 patent/US9790604B2/en active Active
- 2012-06-14 JP JP2014515196A patent/JP5977821B2/en active Active
- 2012-06-14 BR BR112013029759-0A patent/BR112013029759B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3877730A (en) * | 1974-02-12 | 1975-04-15 | Atomic Energy Commission | Method of repairing a flange face of a clamped-flange sealing-ring type pipe coupling |
EP0187273A1 (en) * | 1984-12-17 | 1986-07-16 | The Dow Chemical Company | A monopolar or bipolar electrochemical terminal unit having an electric current transmission element |
Also Published As
Publication number | Publication date |
---|---|
EP2721200A1 (en) | 2014-04-23 |
US20140110250A1 (en) | 2014-04-24 |
BR112013029759A2 (en) | 2017-01-17 |
EA025857B1 (en) | 2017-02-28 |
CN103797158A (en) | 2014-05-14 |
JP2014517154A (en) | 2014-07-17 |
EP2721200B1 (en) | 2016-03-23 |
KR20140034216A (en) | 2014-03-19 |
CN103797158B (en) | 2016-06-15 |
BR112013029759B1 (en) | 2020-07-14 |
EA201490003A1 (en) | 2014-04-30 |
US9790604B2 (en) | 2017-10-17 |
CA2834201A1 (en) | 2012-12-20 |
ITMI20111070A1 (en) | 2012-12-15 |
JP5977821B2 (en) | 2016-08-24 |
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