Molecular air-sifting devices are included as standard terms in the mechanical engineering field in the first edition of the noun of mechanical engineering. The device is also commonly known as the psa molecular nitrogen sifter or carbon molecular sifting sifting nitrogen. The device uses molecular sifting techniques to separate components such as nitrogen, oxygen, etc. In air. Its specific operation is based on compressed air, carbon molecular sift as adsorption, and transform-sorption processes (p. S. A.). At constant temperature and low pressure, oxygen and nitrogen in the air are used at varying rates of diffusion in carbon molecular sifts, resulting in the separation of oxygen and nitrogen. The purity and amount of nitrogen produced can be adjusted as needed。
Technical features broadcast
The psa molecular nitrogen screening machine uses the p. S. A. Process at lower cost. When the equipment is activated, nitrogen can be produced within minutes, with low energy consumption, and the cost of nitrogen is usually lower than deep-cold-fast-raned nitrogen. Microcomputer control and full-automatic operation of equipment, with lower operational requirements, allow for continuous production. The purity of the nitrogen produced is stable, and there are instruments for monitoring and display during production. Its core adsorbent is an imported carbon molecule sift, characterized by high adsorption capacity, high stress resistance and long operational life. The use of imported piping-type gas valves for critical components facilitates the operation of the equipment。
Field coverage
Psa nitrogen (a molecular air-sifting device) is used in the iron and steel industry for dry charging, iron and water devulcanization, metal thermal treatment protection, etc. Nitrogen protection for electronic device manufacturing and production lines in the electronics industry. In the chemical and petrochemical industries, it is used to protect gas, replace gas, wash gas and ensure safe production. In the field of food and medicine, they are used for nitrogen-filled packaging of food, transport of nitrogen-filled medicines, and aerobic storage of agricultural products. Other applications include rubber production protection, nitrogen protection for floating glass production, nitrogen-filled metal protection against rust。
Standards and authoritative reporting
As at 13 september 2020, the definition of molecular air-sifting equipment had not been amended in the first edition of the nomenclature for mechanical engineering. This standard term provides a uniform normative basis for the development, manufacture and application of relevant technologies。
