Nitrogen N2 characteristics and nitrogen pressurization
- Nitrogen is a colorless, odorless, non-toxic, and non combustible high-pressure gas stored in gas cylinders. When its content increases, resulting in oxygen content below 19.5%, it may cause suffocation. A self priming breathing mask is required. Bottled nitrogen products are high-pressure filling gases that should be depressurized and depressurized before use. The packaged gas cylinders have a service life, and any expired gas cylinders must be sent to a department for safety inspection before they can continue to be used. When using exhaust gas in each bottle of nitrogen, the residual pressure inside the bottle should be kept at 0.5MPa, which should not be less than 0.25MPa. The valve of the bottle should be closed to ensure gas quality and safe use.
- 氮气是一种无色、无味、无毒的不燃烧的储存于气瓶中的高压气体。当其含量增加导致氧气含量低于19.5%时有可能引起窒息。需配备自吸式呼吸面具。瓶装氮气产品为高压充装气体，使用时应经减压降压后方可使用。包装的气瓶上均有使用的年限，凡到期的气瓶必须送往有部门进行安全检验，方能继续使用。每瓶氮气在使用到尾气时，应保留瓶内余压在0.5MPa，小不得低于0.25MPa余压，应将瓶阀关闭，以保证气体质量和使用安全。
- Nitrogen recovery is the recycling and reuse of waste gas in production. The use of a nitrogen recovery compressor device is a powerful measure to reduce production costs, save energy, and improve economic benefits.
- 氮气回收是对生产中的废气进行回收再利用，采用氮气回收压缩机装置是一项降低生产成本，节约能源，提高经济效益的有力措施。
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Working principle: The impurity nitrogen that needs to be recovered is pressurized by the compressor, and the oil and water are removed through a filter. Then, it enters the dryer to further remove water, carbon dioxide, and oil. Then, it enters the purification device to remove gas components other than nitrogen. Through pressure swing adsorption and membrane separation technology, impurities in the nitrogen are removed to obtain high-purity nitrogen, which increases the purity of nitrogen to over 99%, The nitrogen recovery rate reaches over 95%, which makes waste nitrogen reusable and has great economic value.
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工作原理：需要回收的有杂质氮气，经过压缩机升压后，通过过滤器将其中的油和水除去，再进入干燥器进一步除去水、二氧化碳和油，然后进入提纯装置，除去氮气以外的气体成份，通过变压吸附和膜分离技术进行分离，除去氮气中的杂质，获得高纯度氮气，使氮气纯度提升到99%以上，氮气回收率达到95%以上，这样废氮得到重复利用，具有很大经济价值。
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- Nitrogen is commonly referred to as an inert gas, used in certain inert atmospheres for metal treatment and in bulbs to prevent arcing, but it is not chemically inert. It is an essential element in the life of animals and plants, and is a component of many useful compounds. Nitrogen combines with many metals to form hard nitrides, which can be used as wear-resistant metals. A small amount of nitrogen in steel can inhibit grain growth at high temperatures and also increase the strength of certain steels. It can also be used to create a hard surface on steel. Nitrogen can be used to manufacture ammonia, nitric acid, nitrate, cyanide, etc; In the manufacturing of explosives; Fill in high-temperature thermometers and incandescent bulbs; Form inert materials to preserve the material, used in drying ovens or glove bags. Liquid nitrogen during food freezing process; Used as a coolant in the laboratory.
- 氮气通常被称为惰性气体，用于某些惰性气氛中以进行金属处理，并用于灯泡中以防止产生电弧，但它不是化学惰性的。它是动植物生命中必不可少的元素，并且是许多有用化合物的组成部分。氮与许多金属结合形成硬氮化物，可用作耐磨金属。钢中的少量氮会抑制高温下的晶粒生长，并且还会提高某些钢的强度。它也可用于在钢上产生坚硬的表面。氮气可用于制造氨，硝酸，硝酸盐，氰化物等；在制造炸药中；填充高温温度计，白炽灯泡；形成惰性材料以保存材料，用于干燥箱或手套袋中。食品冷冻过程中的液氮；在实验室中作为冷却剂.
