Abstract: A pressure electrolyzer having an electrolytic cell block that contains a number of electrolytic cells combined to form a stack, each electrolytic cell having an anode and a cathode. The electrolytic cell block has a sealed housing formed by a number of stacked cell frames of the electrolytic cells, the cell frames being composed at least partially of a material that is elastic at least in a longitudinal direction of the electrolytic cell block and seals adjacent cell frames from each other. End plates are provided so as to hold the electrolytic cell block in place between the end plates under compression of the elastic material. Each of the cell frames has a rigid element that runs in a circumferential direction of the frame so as to mechanically stabilize the cell frame.

Abstract: The invention discloses a pressure electrolyzer comprising a pressure vessel (2) and an electrolytic-cell block (3) arranged in the pressure vessel (2) and containing a plurality of electrolytic cells (4) combined in the form of a stack. The electrolytic cells (4) in each case contain anodes (11) and cathodes (12), and an electrolyte-circuit system is provided for supplying an anolyte to the anodes (11) and for supplying a catholyte to the cathodes (12), and wherein the electrolytic-cell block (3) comprises a housing (5) which is sealed relative to the interior of the pressure vessel (2). The invention provides that the housing (5) of the electrolytic-cell block (3), together with the pressure vessel (2), forms at least two chambers (7, 8) separated from each other, which constitute a part of the electrolyte-circuit system and which are defined relative to the electrolytic cells (4) by the housing (5) and relative to the atmosphere by the pressure vessel (2).

Abstract: A pressure electrolyzer having an electrolytic cell block that contains a number of electrolytic cells combined to form a stack, each electrolytic cell having an anode and a cathode. The electrolytic cell block has a sealed housing formed by a number of stacked cell frames of the electrolytic cells, the cell frames being composed at least partially of a material that is elastic at least in a longitudinal direction of the electrolytic cell block and seals adjacent cell frames from each other. End plates are provided so as to hold the electrolytic cell block in place between the end plates under compression of the elastic material. Each of the cell frames has a rigid element that runs in a circumferential direction of the frame so as to mechanically stabilize the cell frame.

Abstract: The invention discloses a pressure electrolyzer comprising a pressure vessel (2) and an electrolytic-cell block (3) arranged in the pressure vessel (2) and containing a plurality of electrolytic cells (4) combined in the form of a stack. The electrolytic cells (4) in each case contain anodes (11) and cathodes (12), and an electrolyte-circuit system is provided for supplying an anolyte to the anodes (11) and for supplying a catholyte to the cathodes (12), and wherein the electrolytic-cell block (3) comprises a housing (5) which is sealed relative to the interior of the pressure vessel (2). The invention provides that the housing (5) of the electrolytic-cell block (3), together with the pressure vessel (2), forms at least two chambers (7, 8) separated from each other, which constitute a part of the electrolyte-circuit system and which are defined relative to the electrolytic cells (4) by the housing (5) and relative to the atmosphere by the pressure vessel (2).

Abstract: The present invention relates to diaphragm elements for an electrolytic filter press assembly comprising anode and cathode compartments separated with diaphragms. The diaphragm elements comprise a frame (1) which is rigid steel covered by a flexible vulcanizable material (6) serving as electrical insulation and simultaneously sealing and being integrated with fastening device (4) with openings (7) for bolts for securing the diaphragm (12) to the frame (1). T-formed elements (2,3) form gas/liquid channels with the frame (1) and are secured to it by bolts (5) and covered by material (6) integral with the sealing/insulating material (6) around frame (1).