Technical description of integrated nitrogen liquefier:
definition
The integrated nitrogen liquefier is a device that directly liquefies nitrogen in the air into liquid nitrogen. Its characteristic is to integrate the refrigeration system, compression system, and storage system into the same unit, achieving a compact design of "plug and play".
Core technical features
Compact integrated design
Integrate air compression, pre cooling, refining, expansion refrigeration, and liquid nitrogen storage into the same machine body.
Small footprint, easy installation, suitable for laboratory or small and medium-sized industrial use.
Refrigeration cycle technology
Mainly using expander expansion or vortex expansion refrigeration, nitrogen is liquefied through low-temperature expansion.
Multi stage refrigeration can be achieved by combining heat exchangers to improve liquefaction efficiency.
Efficient air separation
Built in air separation system, which removes water and oxygen impurities through molecular sieve adsorption, ensuring the purity of liquid nitrogen.
It can achieve a nitrogen purity of over 99%, meeting scientific and industrial standards.
Automation control
Equipped with PLC or intelligent control system to achieve automatic start stop, liquid level monitoring, temperature and pressure regulation.
Improve operational safety and ease of operation.
Energy saving and safety
Adopting efficient compressors and optimized heat exchange systems to reduce energy consumption.
Equipped with multiple safety protection devices, such as pressure relief valves, anti overheating, anti liquid shortage, etc.
Application scenarios
Laboratory refrigeration and low-temperature storage
Food freezing and liquid nitrogen quick freezing
Medical cryopreservation (such as cells, blood, vaccines)
Industrial cooling and ultra-low temperature treatment
summary
The integrated nitrogen liquefier combines highly integrated liquefaction processes, automated control, and efficient air separation technology to achieve a liquid nitrogen production solution that is easy to operate, occupies a small area, and consumes low energy. It is suitable for various fields such as scientific research, industry, and healthcare.