NUZHUO Liquid Nitrogen Gas Generation Plant

NUZHUO Liquid Nitrogen Gas Generation Plant

The Liquid Nitrogen Gas Generation Plant uses advanced cryogenic technology to produce high-purity liquid nitrogen on-site, offering a reliable and cost-effective solution for industries like metal processing, healthcare, food preservation, and laboratories. With a production capacity ranging from 30L/h to 100 L/h and a purity level of 99.999%, it ensures a continuous nitrogen supply. The plant features low operational costs, energy efficiency, and a modular design for easy installation. It also includes comprehensive services such as installation, maintenance, and operator training for optimal performance.

Our company :

We are Hangzhou Nuzhuo Group, and we believe we can be your supplier and partner, offering excellent service and high-quality products.

Our Main Business: PSA oxygen generators, nitrogen generators, VPSA industrial oxygen generators, cryogenic air separation series, and valve production.

We are committed to advancing the development of industrial and medical gases. If you are looking to purchase our equipment in the near future or wish to become our overseas agent, please contact us. We will provide you with the best service possible.

Working principle:Based on the principle of pressure swing adsorption, high-quality carbon molecular sieves are used as adsorbents. Under certain pressures, due to the kinetic effect, the diffusion rates of oxygen and nitrogen in the carbon molecular sieve are significantly different. By taking advantage of the fact that oxygen molecules are adsorbed preferentially by the carbon molecular sieve, nitrogen molecules are enriched in the gas phase, achieving the separation of oxygen and nitrogen.

Technical Characteristics

1.Air Compressor: Air is compressed at a low pressure of 5-7 bar (0.5-0.7 MPa) using the latest compressors (Screw/Centrifugal type).

2.Pre-Cooling System: The second stage of the process involves using a refrigerant to pre-cool the processed air to a temperature of around 12°C before it enters the purifier.

3.Purification of Air by Purifier: The air enters a purifier consisting of twin molecular sieve dryers that function alternately. The molecular sieve separates carbon dioxide and moisture from the process air before it reaches the air separation unit.

4.Cryogenic Cooling of Air by Expander: The air must be cooled to sub-zero temperatures for liquefaction. Cryogenic refrigeration is provided by a highly efficient turbo expander, which cools the air to temperatures below -165°C to -170°C.

5.Separation of Liquid Air into Oxygen and Nitrogen by Air Separation Column: The air that enters the low-pressure late fin-type heat exchanger is moisture-free, oil-free, and carbon dioxide-free. It is cooled inside the heat exchanger to sub-zero temperatures through the air expansion process in the expander. A temperature difference as low as 2°C is expected at the warm end of the exchangers. The air is liquefied when it reaches the air separation column and is separated into oxygen and nitrogen through the process of rectification.

6.Liquid Oxygen Stored in a Liquid Storage Tank: Liquid oxygen is filled into a storage tank that is connected to the liquefier, forming an automatic system. A hose is used to take liquid oxygen from the tank.

1.Unit KDN series will packed with wooden case, anti-collision foam block, machine be packed by
Stretch film, pearl cotton, according to the export packing standard.
2. Two sets machine delivery by unit 20 feet or 40 feet container, the booster will packed and
fittings be packed by wooden case.
3.Wooden case exterior signs up and anti-collision
4.lmportant fragile parts of the equipment will be treated separately forollision prevention,like gauge, flowmeter,controller

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