(Liquid nitrogen cryogenic box) Liquid nitrogen: liquid nitrogen. It is inert, colorless, odorless, non-corrosive, non-flammable, and extremely low in temperature. Nitrogen constitutes most of the atmosphere (78.03% by volume and 75.5% by weight). Nitrogen is inactive and does not support burning. A large amount of endothermic contact caused by vaporization.
Under normal pressure, the liquid nitrogen temperature is -196 ° C; 1 cubic meter of liquid nitrogen can expand to 696 cubic meters of pure gaseous nitrogen at 21 ° C. Liquid nitrogen is a colorless, odorless, low-temperature liquid and gas under high pressure.
Liquid nitrogen (often written as LN2) is a liquid form formed by nitrogen at low temperatures. The boiling point of nitrogen is -196 ° C. Under normal atmospheric pressure, if the temperature is below this, liquid nitrogen will be formed; if pressurized, liquid nitrogen can be obtained at a higher temperature. .
In industry, liquid nitrogen is obtained by fractional distillation of air. After purifying the air, it is liquefied under a pressurized and cooled environment and separated by the different boiling points of the components in the air. Nitrogen (accounting for 78.09% of the volume of the air) * first vented (and not liquefied), then argon, which accounts for 0.93% in the air, and then, oxygen, which accounts for 20.95%.
Broadly speaking, (liquid nitrogen cryogenic tank) cryogenic means a temperature below -100 ° C. In industry, it can be divided into gas liquefaction technology in the chemical industry and cryogenic treatment in the material industry.
Nuoruida (Tianjin) science and Technology Co., Ltd. is committed to research, development, and sales of liquid nitrogen cryogenic equipment. Using European technology, we provide a variety of equipment. The main equipment is liquid nitrogen equipment, cryogenic furnace, cryogenic processing equipment, low temperature assembly equipment, cryogenic assembly equipment, and so on.
