Liquid Oxygen (LOX) Plant Working Principle
Air Filtration and Compression: First, air from the atmosphere is sucked into the liquid oxygen plant, and dust, impurities, etc. are removed through filters. Then, the air is compressed by a compressor to increase the air pressure in preparation for subsequent processing.
Cooling and Purification: The compressed air is cooled through a series of heat exchangers and enters the purification system at the same time. The purification system usually contains molecular sieves to remove moisture, carbon dioxide and other impurities in the air to obtain pure air.
Cryogenic Distillation Separation: The purified air enters the high-pressure distillation tower, and continuous distillation is carried out under low-temperature conditions according to the different boiling points of oxygen, nitrogen and other gases. In the high-pressure distillation tower, oxygen and other gases are initially separated, and then the oxygen is sent to the low-pressure distillation tower for further distillation to achieve the required purity standard, and finally obtain high-purity liquid oxygen.
LOX Plant Application Areas
Medical field: used for respiratory therapy in hospitals, providing high-purity oxygen for patients with breathing difficulties or respiratory diseases, and also used for organ preservation and transportation to ensure the activity of organs during transplantation.
Industrial field: used as a strong oxidant in steel production to improve the quality and output of steel; in the chemical industry, it is an important raw material for the production of chemicals such as nitric acid and sulfuric acid, and is also used in the oxidation process in various chemical reactions; in glass manufacturing, it helps to improve the quality and transparency of glass.
Aerospace field: used as an oxidant for rocket fuel, it burns with the fuel to generate huge thrust to propel the rocket into space; it is also used to provide astronauts with breathing oxygen in space.
Other fields: in wastewater treatment, it provides oxygen for aerobic bacteria to help decompose organic matter in wastewater; in food processing, it is used for food preservation and refrigeration to control the growth of bacteria and microorganisms; in welding and metal processing, it is used in oxygen-fuel welding and cutting processes to provide high-temperature flames to melt and connect metals.
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