Electrolytic tank for producing hydrogen by electrolyzing water and preparation method of cathode electrode for producing hydrogen by electrolyzing water

The electrolytic bath comprises an electrolytic bath body and a top frame, a driving column is movably connected to the middle of the bottom of the top frame through a bearing, a mounting frame is in threaded connection with the outer wall of the bottom end of the driving column, and a plurality of anode strips are mounted at the bottom of the mounting frame through bolts; a plurality of cathode pieces are mounted at the bottom of the mounting frame through bolts, a plurality of diaphragms are fixedly mounted at the bottom of the mounting frame, an oxygen pipe is welded to one side of the top of the top frame, a hydrogen pipe is welded to one side of the top of the top frame, and outer through pipes are welded to one side of the hydrogen pipe and one side of the oxygen pipe. High-voltage alternating current can be quickly converted into hydrogen production direct current, meanwhile, an anode piece and a cathode piece in the electrolytic bath enable electrolyzed water molecules to be subjected ...