Two utility model patents of DEAR air separation energy-saving air separation nitrogen water precooling system and energy-saving oxygen generator have been authorized by the State Intellectual Property Office. Among them, the energy-saving type air separation nitrogen water precooling system technology is the industry's first, and the energy-saving oxygen generator technology has filled in the domestic blank. The successful research and development of these two technologies marks that China has broken the long-term monopoly of foreign air separation enterprises in the field of green air separation equipment manufacturing in the field of energy-saving and environmental protection air separation equipment, and is in the forefront of the industry.
