Liquid nitrogen preparation system

Liquid nitrogen preparation system
Products from Noblegen Cryogenics in the UK

65 liters of daily UK original IVF liquid nitrogen tank liquid nitrogen deviceIt is a simple plug and play liquid nitrogen solution. Based on the Gifford McMahon cold head process, combined with helium compression and expansion to achieve low-temperature cooling. Built in oil-free air compressor, PSA pressure swing adsorption nitrogen generator, refrigeration unit, helium compressor, and Duwa tank, controlled by a color touch screen, with one click for fully automatic operation.

Liquid nitrogen preparation system

Currently, carbon molecular sieves and zeolite molecular sieves are widely used in the fields of nitrogen and oxygen production. The separation of oxygen and nitrogen by molecular sieves is mainly based on the different diffusion rates of these two gases on the surface of the molecular sieve. Carbon molecular sieve is a carbon based adsorbent that combines certain characteristics of activated carbon and molecular sieve. Carbon molecular sieves have a very small microporous composition, with pore sizes ranging from 0.3nm to 1nm. Smaller diameter gases (oxygen) diffuse faster and enter the solid phase of the molecular sieve more, allowing for the enrichment of nitrogen components in the gas phase. After a period of time, the adsorption of oxygen by the molecular sieve reaches equilibrium. Based on the different adsorption capacities of carbon molecular sieve for adsorbed gases at different pressures, the pressure is reduced to release the adsorption of oxygen by the carbon molecular sieve. This process is called regeneration. The pressure swing adsorption method usually uses two towers in parallel, alternating between pressurized adsorption and depressurization regeneration, to obtain a continuous nitrogen flow. The method of using air as raw material, carbon molecular sieve as adsorbent, and pressure swing adsorption principle to selectively adsorb oxygen and nitrogen by carbon molecular sieve to separate nitrogen and oxygen is commonly known as PSA nitrogen production. This method is a new nitrogen production technology that rapidly developed in the 1970s. Compared with traditional nitrogen production methods, it has the advantages of simple process flow, high degree of automation, fast gas production (15-30 minutes), low energy consumption, adjustable product purity within a large range according to user needs, convenient operation and maintenance, low operating costs, and strong device adaptability. Therefore, it is highly competitive in nitrogen production equipment below 1000Nm3/h and is increasingly popular among small and medium-sized nitrogen users. PSA nitrogen production has become a method for small and medium-sized nitrogen users.

Product Features
Compact and silent design
Fully automatic operation with energy-saving module
Built in oil-free air compressor and sterilization suction filter
PSA nitrogen generator provides nitrogen gas with a dew point pressure of -60 ° C
Install a sterilization filter before the nitrogen pipeline to the refrigeration unit
Extremely reliable low maintenance helium compressor unit
Cold head integrated into the Duwa tank provides high efficiency
Including liquid nitrogen outlet valve and conversion hose

advantage
Produce liquid nitrogen independently and terminate transportation.
Less waste - The cold head can maintain a low temperature in the Duwa tank and reduce the vaporization of traditional Duwa tanks.
Efficiency - Once the built-in Duwa tank is full, the system automatically goes on standby, reducing energy consumption.
Cost - The production cost of liquid nitrogen is only one-third of the transportation cost of liquid nitrogen.
The clean closed PSA nitrogen cycle system, refrigeration unit, and sterilization filter ensure that only clean and dry nitrogen is injected into the Dewar tank, and produce clean and pure liquid nitrogen.

Application field-
In vitro fertilization (IVF) clinics/hospitals store samples
Maintain liquid helium cooling and prevent volatilization in NMR spectrometer
Blood and stem cells
Metal processing (rapid cooling)
Bottled water production
aerospace
superconductor
theme park
film production
Remote areas - such as underground, high mountains, islands, ships, etc. that require the use of liquid nitrogen

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