Mini Liquid N2 plant
Established in Beijing, LDH Gas Systems Company Limited is a pioneer in gas separation and cryogenic equipment. Our commitment to quality and innovation is reflected through our multiple national patents, EU CE certification, and ISO9001 accreditation. Collaborating with leading research institutions and international partners, we deliver advanced solutions tailored to the unique needs of our clients.
The Mini Liquid N2 plant by LDH employs mixed refrigerant MRJT process to produce 10-120L/day of ≥99% pure liquid nitrogen. Featuring PLC+IoT control for remote monitoring, it operates at -40~-196°C with air cooling. Compact, energy-efficient, and customizable for altitude/voltage, it suits labs, food freezing, and cryotherapy.
Parameter Table
|
Model |
LPLN-10 |
LPLN-20 |
LPLN-40 |
LPLN-80 |
LPLN-120 |
|
Yield |
0.3-0.4L/H 8-10L/day |
0.8-1L/H 20-24L/day |
1.6-2L/H 40-50L/day |
3L/H 72L/day |
5L/H 120L/day |
|
Purity |
99% |
||||
|
Power (KW) |
2 |
4.5 |
7.5 |
12.5 |
15 |
|
Floor Area (㎡) |
1 |
1.5 |
3 |
3.5 |
3.5 |
|
Equipment size MM |
750*650*1500 |
1150*850*2000 |
1250*2000*2000 |
1250*2000*2000 |
1250*2000*2000 |
|
Required room area ㎡ |
>> 5 |
>> 6 |
>> 10 |
>> 15 |
>> 15 |
|
Ambient temperature requirements |
0-30 ℃ Good ventilation |
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|
One meter noise (Db) |
<65Db |
<65Db |
<65Db |
<65Db |
<65Db |
|
Cooling mode |
air-cooled |
air-cooled |
air-cooled |
air-cooled |
air-cooled |
|
Amount of nitrogen (m³/h) |
1 |
2 |
4 |
6 |
8 |
|
Nitrogen dew point (℃) |
-60 ℃ |
||||
|
Suggestion on matching of liquid nitrogen tank (L) |
30 |
50 |
100 |
175 |
300 |
|
Voltage frequency |
220VAC 1p 50Hz |
380VAC 3P 50Hz 220VAC 1P 50Hz |
|||
|
Nitrogen pressure (Mpa) |
0.8 |
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|
Other |
Such as non-standard voltage frequency, altitude> 1000 meters, purity 99.9%, need to be customized; Equipment above 100L/h is customized according to customer's site conditions |
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Production Process
1.Air Compression: Oil-free compressors generate high-pressure air.
2.Purification: Cold drying and filtration remove moisture and impurities.
3.Liquefaction: Multi-component mixed refrigerant cools air to cryogenic temperatures.
4.Distillation: Fractional distillation separates nitrogen from air components.
5.Quality Control: Each unit undergoes 48-hour testing for purity, pressure, and stability.
Why Choose the LDH Mini Liquid N2 Plant?
● Energy Efficiency: Optimized refrigeration cycles reduce operational costs by up to 30% versus traditional systems.
● Durability: Built for continuous 24/7 operation with minimal maintenance requirements.
● Safety: Multi-layered protection systems (pressure relief, temperature alarms, leak detection) ensure compliance with global standards.
● Global Support: Backed by LDH's ISO 9001/CE-certified quality assurance and 24/7 technical assistance.
After-Sales Commitment
● Warranty: Industry-leading coverage on all components.
● Training: On-site commissioning and operator certification programs.
● Spare Parts: Rapid global dispatch of genuine replacement components.
Key Features
● Advanced Cryogenic Liquefaction
Utilizes a proprietary mixed-refrigerant or pulse-tube refrigeration system to cool nitrogen gas to -196°C, ensuring rapid liquefaction.
Integrates Pressure Swing Adsorption (PSA) or membrane separation for pre-liquefaction nitrogen purification, achieving ≥99% liquid nitrogen purity.
● Compact & Modular Design
Space-saving all-in-one configuration with a fully enclosed casing for enhanced safety and contamination prevention.
Customizable capacity options (0.3L/H to 10L/day, expandable via tailored configurations) to suit diverse operational scales.
● Intelligent Operation
Equipped with MCGS remote monitoring for real-time performance tracking, historical data logging, and firmware updates.
Optional liquid-level automation enables autonomous start/stop cycles based on storage levels.
Industry-Leading Specifications
● Voltage/Frequency: 220V(AC), 1P, 50Hz or 380V(AC), 3P, 50Hz.
● Power Consumption: 2–190KW (model-dependent).
● Dew Point: -60°C for ultra-dry liquid nitrogen output.
● Noise Level: <65dB(A) for quiet, disruption-free operation.
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