Electrochemical oxygen plants

The utility model provides an electrochemical oxygen generating equipment which mainly includes an electrobath, a power supply connected with the electrobath, a gas-liquid passage that is communicated with the gas outlet pipe and the liquid pipe of the electrobath and a liquid storage tank arranged at the lower end of the gas-liquid passage, an oxygen outlet arranged at the upper end of the gas-liquid passage; the utility model is characterized in that two or more electrobaths are connected in series, an air cathode and a metal anode of the electrobath are installed on the case of the electrobath respectively; the air cathode is cold-pressed and sintered by a waterproof permeable film, a conductive mesh and a catalytic film; the metal anode is three-dimensional nickel alloy block with pores; the metal anode is close to the air cathode, the oxygen generating equipment has the advantages of simple structure, low cost and long service life.