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一站式压缩空气解决方案
产品特点：
DM 系列 liquid nitrogen device is based on the principle of pressure change adsorption.using high quality carbon molecular sieve as adsorbent to produce nitrogen from air under certain pressure, The purified and dried compressed air is adsorbed under pressure and desorbed under reduced pressure in the adsorber, Due to kinetic effect, the difusion rate of oxygen in the micropores of the carbon molecular sieve is much larger than that of nitrogen,and when the adsorption has not reached eguilibrium, nitrogen is enriched in the gas phaseto form finished nitrogen. Then the pressure is reduced to atmospheric pressure and the adsorbent desorbs the adsorbed oxygen and other impurities to achieve regeneration.Generally, two adsorption towers are set up in the system, one tower adsorbs nitrogen, andthe other tower desorbs and regenerates, which is automatically controlled by PLC programme, so that the two towers work alternately. The finished nitrogen gas then passes through the multi-refrigerator to produce liquid nitrogen. Multi-refrigerator is mainly based on deep-cooling multi-mixed mass technology, and the system includes: pre-cooling, main cooling and finned heat exchanger.
The machine has the features of simple process, room temperature production, high automation, convenient start and stop, less wearing parts, easy maintenance and low production cost.
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