Comprehensive utilization device and method for producing hydrogen and oxygen by electrolyzing water

The invention discloses a comprehensive utilization device and method for producing hydrogen and oxygen by electrolyzing water, and solves the technical problems of single product and low purity of obtained electron hydrogen in the production of high-purity hydrogen and/or oxygen by electrolyzing water in the prior art. The device comprises a power generation unit (1), a water electrolysis unit (2), a hydrogen purification unit (3), an oxygen purification unit (4), a hydrogen liquefaction cold box (5), an oxygen-nitrogen liquefaction cold box (6) and an air separation unit (7) for separating air into nitrogen and oxygen. According to the device and the method for comprehensively utilizing hydrogen and oxygen produced by electrolyzing water, fuel hydrogen, electron hydrogen, liquid hydrogen, liquid oxygen, liquid nitrogen, gaseous oxygen, liquid ammonia and medium-pressure steam can be produced by utilizing air and water, and comprehensive utilization of energy is realized. 本发明公开了一种电解水制氢氧综合利用的装置和方法，解决了现有技术中通过电