Electrolyzer, method for controlling same, and program

A method for controlling an electrolyzer including:

• a stack obtained by stacking a plurality of electrolytic cells each having an anode chamber and a cathode chamber with membranes interposed therebetween,
• a pressing plate arranged at least one end side in a stacking direction of the stack,
• an actuator which moves the pressing plate to thereby generate a pressing force along the stacking direction, and
• a safety device which has:
• a contact plate arranged at a predetermined position;
• a rod attached to the pressing plate so as to extend in the stacking direction and moving relative to the contact plate together with the pressing plate;
• and a locking mechanism attached to the rod, and is configured so that when the actuator does not operate, the locking mechanism comes into contact with the contact plate to prevent the rod and the pressing plate from retreating, thereby maintaining the pressing force, the method comprising:
• causing a control device to adjust a distance between the locking mechanism and the contact plate within a specific range so as to maintain the pressing force acting on the stack.

A non-transitory recording medium having recorded thereon a program which causes a computer to execute a control of an electrolyzer including:

• a stack obtained by stacking a plurality of electrolytic cells each having an anode chamber and a cathode chamber with membranes interposed therebetween,
• a pressing plate arranged at least one end side in a stacking direction of the stack,
• an actuator which moves the pressing plate to thereby generate a pressing force along the stacking direction, and
• a safety device which has:
• a contact plate arranged at a predetermined position;
• a rod attached to the pressing plate so as to extend in the stacking direction and moving relative to the contact plate together with the pressing plate;
• and a locking mechanism attached to the rod, and is configured so that when the actuator does not operate, the locking mechanism comes into contact with the contact plate to prevent the rod and the pressing plate from retreating, thereby maintaining the pressing force,
• wherein the control causing a control device to adjust a distance between the locking mechanism and the contact plate within a specific range so as to maintain the pressing force acting on the stack.