Pressure electrolyser and cell frame for said electrolyser

C - Chemistry – Metallurgy – 25 – B

Patent

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Details

C25B 9/20 (2006.01) C25B 1/12 (2006.01) H01M 2/02 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2511167

The invention relates to a pressure electrolyser and a cell frame for said electrolyser. The pressure electrolyser (1) comprises a pressurised container (2) and an electrolysis cell block (3), which is located in the pressurised container (2) and comprises a number of electrolysis cells (4) that are combined to form a stack. According to the invention, each electrolysis cell (4) contains an anode (11) and a cathode (12) and the electrolysis cell block (3) comprises a sealed housing (5). The invention is characterised in that the housing (5) of the electrolysis cell block (3) is configured by a number of stacked cell frames (15, 16; 25, 26) of the electrolysis cells (4), that the cell frames (15, 16; 25, 26) at least partly consist of a material (15a, 15a; 25b, 26b), which is elastic at least in the longitudinal direction of the electrolysis cell block (3) and seals neighbouring cell frames (15, 16; 25, 26) in relation to one another and that the electrolysis cell block (3) is braced between the end plates (21, 22) by the compression of said elastic material (15a, 16a; 25b, 26b).

L'invention concerne un électrolyseur sous pression et un cadre de cellule destiné à un tel électrolyseur. Cet électrolyseur sous pression (1) comprend une enceinte sous pression (2) et un bloc de cellules d'électrolyse (3) comportant une pluralité de cellules d'électrolyse (4) réunies sous forme de pile, ce bloc étant placé dans l'enceinte sous pression (2). Les cellules d'électrolyse (4) comportent chacune une anode (11) et une cathode (12) et le bloc de cellules d'électrolyse (3) comprend un corps (5) étanche. Selon l'invention, le corps (5) du bloc de cellules d'électrolyse (3) est formé par une pluralité de cadres de cellules (15, 16 ; 25, 26) empilés, constituant les cadres des cellules d'électrolyse (4), ces cadres de cellules (15, 16 ; 25, 26) sont formés au moins partiellement d'un matériau (15a, 15a ; 25b, 26b) élastique au moins dans le sens longitudinal du bloc de cellules d'électrolyse (3), ce matériau assurant l'étanchéité des cadres de cellules (15, 16 ; 25, 26) voisins les uns vis-à-vis des autres, et le bloc de cellules d'électrolyse (3) est encastré entre les plaques d'extrémité (21, 22) par compression dudit matériau (15a, 16a ; 25b, 26b) élastique.

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