Machine overview
This liquid nitrogen machine is a production equipment in the industrial field, consisting of an air compressor, an air dryer, an air separation machine, a liquid nitrogen storage tank, a filter valve, and a control system.
This liquid nitrogen machine is a fully automated production line. We customize the power and size of this liquid nitrogen production equipment according to the user’s requirements for liquid nitrogen purity and flow rate.
This liquid nitrogen machinery uses pressure swing adsorption technology to separate air, with two adsorption towers in parallel alternately adsorbing, decompressing, and regenerating to obtain high-purity nitrogen gas. After purification and compression, the nitrogen gas liquefies into liquid nitrogen.
Liquid nitrogen machine Technical Parameter
| Project | parameters |
| Model | PG-150 |
| Nitrogen flow rate | 150Nm3/h |
| Working pressure | ≥ 0.8Mpa |
| Compressed air consumption | 10Nm3/min |
| Nitrogen purity | ≥ 99.999% |
| Nitrogen outlet pressure | 0.1-0.65Mpa (adjustable) |
| Nitrogen dew point | ≤ -40 ℃ |
| Power supply voltage | 220V/50HZ |
| Pneumatic valve | SKF mechanical |
Liquid nitrogen machine advantage
- Unattended continuous production
The equipment is fully automatic liquid nitrogen production without manual participation in the production process; it can be 7*24 hours of continuous, uninterrupted production.
- Low energy consumption
Air compressors adopt frequency conversion technology, saving 30% of power consumption. They can automatically adjust the speed of the motor according to the demand for liquid nitrogen flow and purity to achieve the purpose of energy saving.
- Low maintenance costs
The structure of the liquid nitrogen machine is simple: it will not have parts worn during use, the main parts are not easy to age, and the later maintenance only needs to replace the filter element and oil regularly.
- Environmental safety
Liquid nitrogen is an inert gas. It is colorless, tasteless, and non-corrosive in the production process and will not produce harmful gases combined with any strict environmental protection requirements.
- Easy to operate
The control device uses a visual operation interface; each pressure gauge is displayed digitally, the engineer’s workflow is clear at a glance, and the operation is simple and intuitive.
Equipment part list
| Equipment Name | Quantity |
| Nitrogen generator | 1 nos |
| Cold drying machine | 1 nos |
| Filter | 3 nos |
| Screw air compressor | 1 nos |
| Carbonized purification | 1 nos |
| Air storage tank | 1 nos |
| Nitrogen gas storage tank | 2 nos |
Liquid nitrogen machine Work steps
1. Compressed air machines produce air and store it in tanks.
2. Compressed air is filtered through a filter valve to remove impurities and dust.
3. The air passes through a drying machine that uses refrigeration technology to separate moisture from the air.
4. Air enters the adsorption tower for nitrogen separation, eliminating other gases.
5. After separation, the nitrogen enters another adsorption tower for further purification to meet high purity requirements.
6. Nitrogen enters the low-temperature condensation device for low-temperature and liquefaction, converting nitrogen into liquid nitrogen.
7. Store the completed liquid nitrogen in a low-temperature storage tank, and the liquid nitrogen manufacturing process ends here.
Liquid nitrogen machine Installation site video
Support and Services
1. The liquid nitrogen manufacturing machine is a complex set of machinery that requires professional engineers to install and debug. We provide free installation services and on-site training for engineers to solve this major problem for users
2. All machines are debugged in factories in China to ensure they can operate normally and then disassembled for safe packaging
3. We provide spare parts for each liquid nitrogen machine so that the parts can be useing for maintenance and upkeep
4. 24/7 online technical service if the machine encounters any malfunctions, our engineers will answer all technical questions online
5. The warranty period for liquid nitrogen machines is 12 months. During this period, if there is any mechanical failure, we provide free repair, except for intentional damage caused by human error
Q & A
A: This is a customized machine that we manufacture according to your requirements, and its purity can be 99.9%-99.999%.
A: This is a machine that uses the latest technology and does not require the use of ammonia gas.
A: If there are any problems within 1 year without human damage to the machine, free maintenance will be provided.
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