Liquid Nitrogen Cabinet Design

Utilizing high-quality imported carbon molecular sieves, the PSA system efficiently separates nitrogen from ambient air by adsorbing oxygen, carbon dioxide, and moisture, yielding high-purity nitrogen. The separated nitrogen is cooled to approximately -196°C via a dedicated liquefier (equipped with a mixed refrigerant or pulse tube refrigerator), converting gaseous nitrogen into liquid nitrogen. All key components - including the air compressor, PSA unit, liquefier, and control system - are seamlessly integrated into a single cabinet, ensuring a streamlined, plug-and-play operation.

Core Advantages

All-in-One Compact Design: This design maximizes space efficiency, making it ideal for environments with limited area.

Stable High-Quality Output: Produces high-purity liquid nitrogen (≥99%) with a nitrogen dew point of -60°C, ensuring consistent performance for critical applications.

Energy Efficiency: Operates at a low power consumption, 30% more energy-efficient than traditional systems, thanks to LDH's proprietary PSA energy-saving technology.

Low Noise Operation: Maintains a noise level of <65Db at 1 meter, ensuring a quiet working environment.

Advanced Cooling: Adopts air-cooling technology, eliminating the need for complex water supply systems and enhancing installation flexibility.

Robust Performance: Features nitrogen pressure stability at 0.8Mpa, with built-in molecular sieve protection technologies to ensure long-term reliable operation.

Model	LPLN - 10	LPLN - 20	LPLN - 40	LPLN - 80
Output	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)
Purity	≥99%	≥99%	≥99%	≥99%
Voltage - Frequency	220VAC			380VAC 3P 50Hz
Power (KW)	2	4.5	7.5	12.5
Floor Area (m²)	1	1.5	3	3.5
Equipment Size (mm)	750×850×1700	1150×850×2000	1250×2000×2000	1250×2000×2000
Required Room Area (m²)	>5	>6	>10	>15
Ambient Temperature Requirement	0 - 30°C with good ventilation	0 - 30°C with good ventilation	0 - 30°C with good ventilation	0 - 30°C with good ventilation
Noise at 1m (dB)	<60dB	<60dB	<60dB	<60dB
Nitrogen Volume (m³/h)	1	2	4	6
Nitrogen Dew Point (°C)	- 60°C	- 60°C	- 60°C	- 60°C
Nitrogen Pressure (Mpa)	0.8	0.8	0.8	0.8
Recommended Liquid Nitrogen Tank Capacity (L)	15	50	100	150

Note: Non-standard voltage frequency, altitude>1000m, purity ≥ 99.9%, need to be customized;
Equipment above 100L/h is customized according to customer's site conditions.

Application Senarios:

Superconducting MRI: Provides stable low-temperature environments required for superconducting magnets in MRI systems, ensuring imaging accuracy and equipment stability.

Sample Repository: Ideal for ultra-low-temperature preservation of biological samples, vaccines, and embryos, maintaining sample integrity over extended periods.

Aerospace: Supports low-temperature testing of aerospace materials and components, verifying their performance under extreme cold conditions.

Beverage Dripping: Enables precise liquid nitrogen dripping in beverage production, enhancing texture and freshness without compromising flavor.

Quick Freezing: Facilitates rapid freezing of food products, preserving nutrients, texture, and shelf life by minimizing ice crystal formation.

Electronic Semiconductor: Ensures controlled cooling during semiconductor manufacturing processes, preventing thermal damage and improving product quality.

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