WATER ELECTROLYSIS SYSTEM

To reduce the current in a stack with increased resistance and to prevent the propagation to other stacks due to short circuits in some stacks, thereby maintaining high hydrogen production volumes even if a stack abnormality occurs, in a water electrolysis system in which many water electrolysis sta...

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Bibliographic Details
Main Authors MIZUKAMI TAKAAKI, SUGIMASA MASATOSHI, GUNJI AKIRA
Format Patent
LanguageEnglish
Japanese
Published 14.05.2024
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS
METALLURGY
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Summary:To reduce the current in a stack with increased resistance and to prevent the propagation to other stacks due to short circuits in some stacks, thereby maintaining high hydrogen production volumes even if a stack abnormality occurs, in a water electrolysis system in which many water electrolysis stacks are connected in series.SOLUTION: A series stack group is formed by connecting a plurality of water electrolysis stacks and at least one overcurrent breaking means in series. A series-parallel stack unit is formed by connecting three or more series stack groups in parallel. A water electrolysis stack group formed by connecting a plurality of series-parallel stack units in series is connected to a DC power source.SELECTED DRAWING: Figure 2 【課題】多数直列接続された水電解システムにおいて、抵抗上昇したスタックの電流低減と、一部スタックの短絡が他スタックへの伝播抑制を可能とし、スタック異常が発生しても水素の生産量を高く保つことを目的とする。【解決手段】複数の水電解スタックと少なくとも１つの過電流遮断手段とを直列接続して直列スタック群を構成し、３つ以上の直列スタック群を並列接続して直並列スタックユニットを構成し、複数の直並列スタックユニットを直列接続して構成した水電解スタック群を直流電源に接続する。【選択図】図２
Bibliography:Application Number: JP20220172276