Water electrolysis hydrogen (oxygen) is the process of water electrolysis into hydrogen and oxygen by using KOH solution as the electrolyte.The electrolyzer stack is composed of two bipolar plate electrolytic cell group. And the chamber is equal to the number of two cell groups, with a common cathode plate transmission.It has features of compact structure, safe operation and reliable performance. Hydrogen and oxygen separator are horizontal type, with good separation performance. Oxy-hydrogen liquid level balanced on both sides, and the height of the equipment is greatly reduced.The electrolyte will be compulsively recycled, and the raw water is consumed by the piston pump automatically, and the operation parameters can be automatically monitored and controlled.