Professional Small Liquid Nitrogen Making Machine

The liquid nitrogen making machine is based on the principle of pressure swing adsorption, using high-quality carbon molecular sieve as the adsorbent, and producing nitrogen from the air under a certain pressure. The purified and dried compressed air is subjected to pressure adsorption and decompression desorption in the adsorber. Due to kinetic effects, the diffusion rate of oxygen in the micropores of carbon molecular sieve is much faster than that of nitrogen. When the adsorption does not reach equilibrium, nitrogen is enriched in the gas phase to form finished nitrogen. Then the pressure is reduced to normal pressure, and the adsorbent desorbs the adsorbed oxygen and other impurities to realize regeneration. 

Generally, two adsorption towers are set up in the system, one tower absorbs and produces nitrogen, and the other tower desorbs and regenerates, and the PLC program is automatically controlled to make the two towers work alternately and cyclically to carry out oxygen and nitrogen adsorption and separation, so as to obtain qualified nitrogen, and then enter The air-cooled oil-free circulating compressor and liquefaction equipment convert nitrogen from gaseous state to liquid state to obtain Nitrogen Systems liquid nitrogen.

The machine has the characteristics of simple process flow, normal temperature production, high degree of automation, convenient start and stop, less wearing parts, easy maintenance and low production cost.Small-scale Smaller PSA Liquid Nitrogen Generator is mainly used for laboratory teaching, cryopreservation of sperm in animal husbandry, thermal expansion and contraction in bearing production, beverage cans and wine dripping bottle preservation and other purposes.