Pure nitrogen cannot be directly derived from nature, so air separation is the first choice. Air separation methods include: cryogenic method, pressure swing adsorption (PSA), membrane separation method. With the rapid development of industry, nitrogen has been widely used in chemical, electronics, metallurgy, food, machinery and other fields. my country's demand for nitrogen is increasing at an annual rate of more than 8%. The chemical nature of nitrogen is not vivid, it appears lazy under ordinary conditions, and it is not easy to chemically react with other substances.
Therefore, nitrogen is widely used as a maintenance gas and sealing gas in the metallurgical industry, electronics industry, and chemical industry. Generally, the purity of the maintenance gas is 99.99%, and some require high-purity nitrogen above 99.998%. Nitrogen generator liquid nitrogen is a relatively convenient cold source, and it has been more and more widely used in food industry, work, and animal husbandry semen storage. In the production of synthetic ammonia in the chemical fertilizer industry, if the raw material gas of synthetic ammonia-hydrogen-nitrogen mixed gas is washed and refined with pure liquid nitrogen, the content of inert gas can be extremely small, and the content of carbon monoxide and oxygen does not exceed 20 ppm.
The above is about the difference between ventilators and oxygen concentrators. Our company has a large number of oxygen concentrators. If you are interested, you can come and have a look. Not only that, in order to reflect the diversification of our business, we also have SMT Cleaning machine, PCB Cleaning Machine, PCB Separator, Reflow / Wave Soldering Machine, SMT Nozzle / Feeder.
