Principle of oxygen generator

Nitrogen-water precooler is generally installed in all low-pressure air separation plant. It mainly uses the unsaturation of the water in the nitrogen to make part of the water evaporate. When the water evaporates, it absorbs the latent heat of vaporization to lower the cooling water temperature, and then uses it to cool the processed air to lower the air temperature entering the tower. Therefore, it includes air cooling tower and water cooling tower. The fundamental purpose of setting nitrogen-water precooler is to reduce the temperature of air entering the air separation tower and avoid the sharp fluctuation of the temperature entering the tower. Because the air temperature in the tower directly affects the working condition of switching heat exchanger and distillation column and the economy of the whole air separation plant. When designing, the temperature of air entering the tower is generally set at 30℃. When the inlet temperature of the tower is higher than the design index du...

The world's iron and steel industry has experienced several revolutions. Around 1865, the air side blowing converter steelmaking method and flat furnace steelmaking method appeared in Britain, and then the flat furnace replaced the side blowing converter. In order to strengthen the flat furnace smelting, then adopt the oxygen blowing operation. After Austria invented the oxygen top-blown converter steelmaking method (LD method) in 1952, the world steel industry has entered a period of rapid development. With the great leap of iron and steel industry, oxygen generator is developing towards large scale rapidly, and oxygen and steel are closely connected. After Austria, the United States is the first country to adopt oxygen top-blown converter in the world. Japan has introduced this technology and developed it vigorously since 1957. Within only ten years, the steel production has soared from 10 million tons to 0.1 billion tons. Its development speed is so fast, and the proportion of ox...