Complaint
NZN-LZ series liquid nitrogen equipment is based on the principle of pressure swing adsorption, using high-quality carbon molecules as adsorbents to produce 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 the kinetic effect, the diffusion rate of oxygen in the pores of the carbon molecular sieve is much greater than that of nitrogen. When the adsorption does not reach equilibrium, the nitrogen is enriched in the gas phase to form the 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 nitrogen and the other tower desorption and regeneration. The two towers are automatically controlled by the PLC program to make the two towers work alternately. The finished nitrogen gas is then passed through a Stirling refrigerator to produce liquid nitrogen.
The machine has the characteristics of simple process flow, normal temperature production, full automation, convenient start and stop, few consumable parts, easy maintenance, and low production cost.
| Liquid Nitrogen Production | 3~50Lh | Nitrogen Purity | 99.9% |
| Nitrogen Liquefaction | -180ºC | Dew Point | ≤-40ºC (Normal pressure) |
| Nitrogen Pressure | 0.65MPa | Device running continuously | 8500Hour |
| Application | Food quick freezing, preservation, processing; medical beauty, vaccine storage, etc.; cryogenic treatment, cold assembly; biological tissue storage; liquid nitrogen fracturing technology; infrared cooling, etc. | ||
| Main Components | Screw air compressor, air purification system, air buffer tank, nitrogen buffer tank, nitrogen generator, control box, nitrogen analyzer, chiller, liquid nitrogen machine, etc. | ||
| Model | NZN-3Y | NZN-5Y | NZN-10Y | NZN-20Y | NZN-30Y | NZN-40Y | NZN-50Y | |
| Production (L/DAY) | 80 | 120 | 240 | 480 | 720 | 1000 | 1200 | |
| Power Consumption (KW) | 7.5 | 8.5 | 12 | 25 | 25 | 35 | 35 | |
| Electric Parameter | 380V/50HZ/three phase electric(customized) | |||||||
| Cooling Method | Air-cooling | Water-cooling | ||||||
| Cold Water Require | Flow Rate(m3/h) | / | / | 4 | 8 | 8 | 12 | 12 |
| Temperature (ºC) | / | / | 25 | 25 | 25 | 25 | 25 | |
| Nitrogen Require | Flow Rate(m3/h) | ≥4 | ≥6 | ≥12 | ≥24 | ≥36 | ≥48 | ≥60 |
| Pressure(MPaG) | ≥0.8 | ≥1.6 | ≥0.8 | ≥1.6 | ||||
| Purity(%) | ≥99.9 | |||||||
| Dew Point(ºC) | ≤-70 | |||||||
