Importance

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Abstract

The present invention provides an electrolyzer, which comprises vertical type electrolyzer units with irregular surfaces formed on partition walls on anode side and on partition walls on cathode side, said irregular surfaces being overlapped on each other and integrated, and electrode plates being connected to convex portions of the partition walls, whereby said irregular surfaces are formed as troughs and ridges extending in vertical direction of the electrolyzer units, said irregular surfaces are divided into a plurality of sectors in height direction, said trough in each sector extends along the same straight line as the ridge of another sector, a liquid junction is provided to connect adjacent troughs in the same sector in the connecting portion of the adjacent sector and to connect the troughs in adjacent sectors, and an internal circulation member is provided between the partition wall and the electrode surface, using inclined surfaces of the trough on the partition wall or a member parallel to the inclined surface of the trough of the partition wall as dividing walls, thereby forming an internal circulation passage where the electrolytic solution flows down.

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First Claim