Ldh Gas Air Separation Plant Liquid Nitrogen Generator Production of High-Purity

• Customization: Available
• Application Fields: Chemical
• Certification: CE, ISO, RoHS
• Model NO.: LPLN-80
• Condition: New
• Noise Level: Low
• Parts: Gas Tank
• Purpose: Gas Manufacturing
• Usage: Nitrogen
• Type: Air-Cooled
• Cooling Water: Industrial Water
• System Type: Open System
• Fans Species: Single-Speed Fan
• Purity: 99-99.999%
• Machine Size: Small
• Transport Package: Wooden
• Specification: 1900*1800*2100
• Trademark: LDH
• Origin: Beijing China
• HS Code: 841960
• Production Capacity: 200
• Package Size: 580.00cm * 260.00cm * 240.00cm
• Package Gross Weight: 1980.000kg

Product Description

Liquid Nitrogen Generator is the machine can produce liquid nitrogen or oxygen machine .
The liquid can be into gas with low temp.
LDH is one of the professional liquid nirogen generator manufacturer ,we can offer all modes of liquid nitrogen generators.
From 3L/hr to 50L/hr ,purity 95% to 99.999%
We can offer one full system also can offer the parts of equipment as your need.
Any need welcome contact us,get more information
Our company's core technical personnel are teachers from the Chinese Academy of Sciences, with reliable technology and high product stability. Our liquid nitrogen products have been sold to the United States, Peru, Southeast Asian countries, Germany, Lhasa, China, and are used stably at an altitude of 4500 meters.

LDH Liquid nitrogen generator drawing

Biological cell special laboratory small liquid nitrogen generator
 

1. Liquid Nitrogen Output Capacity: Ranges from 3L/h to 50L/h, accommodating diverse operational needs.
2. Energy Efficiency: Features low power consumption for cost-effective operation.
3. User-Friendly Automation: Fully automatic operation with one-key startup, simplifying workflow.
4. Space-Saving Design: Compact structure with minimal floor space requirement.
5. High Durability: Engineered for 24/7 continuous operation, ensuring long-term reliability.
6. One-Stop Supply Solution: We provide a complete set of equipment, including the liquid nitrogen generator, matching vacuum tubes, and liquid nitrogen dewars.

LDH Liquid nitrogen generator models and technical sheet:

NO.	LN80-A	LN120-A	LN240-W	LN500-W	LN720-W	LN1000-W	LN1200-W
Capacity(L/day)	80	120	240	500	720	1000	1200
Capacity (L/h)	3	5	10	20	30	40	50
Power(kW)	8	9	11	20	25	35	40
purity(99%~99.999%)	99.9%	99.9%	99.9%	99.9%	99.9%	99.9%	99.9%
Outlet (MPaG)	≥0.8	≥0.8	≥0.8	≥0.8	≥1.6	≥0.8	≥1.6
Power supply	380/50Hz	380/50Hz	380/50Hz	380/50Hz	380/50Hz	380/50Hz	380/50Hz
Cooling	air	air	water	water	water	water	water
Water cooling(m^3/h)	-	-	≥4	≥8	≥12	≥15	≥20

 

For the nitrogen liquefier developed by TIPC, CAS-designed to liquefy nitrogen to -180ºC-a low-temperature mixed-refrigerant Joule-Thomson (MRJT) refrigerator is employed. This refrigerator is driven by a single compressor and incorporates a precooling system.

 

The MRJT refrigerator operates on the Joule-Thomson cycle, leveraging multicomponent mixed refrigerants. Its core design principle involves optimizing refrigerants with different boiling points: by selecting and blending these refrigerants, their respective efficient refrigeration temperature ranges are well-matched, enabling effective "reoccupation" of the target temperature spectrum. This configuration makes the MRJT refrigerator highly efficient for the temperature range of -40 to -196ºC.

 

Features of this product are as follows:

 

• Utilizes mature, commercially available compressors and heat exchangers;
• High liquefaction efficiency;
• High reliability;
• Maintenance-free operation;
• Long service life.

 

LDH liquid nitrogen generators


Classification by Liquid Nitrogen Purity

Liquid nitrogen is typically classified into food-grade and industrial-grade based on its purity.

- Food-grade liquid nitrogen has high purity, with a specification of 99.999% (often referred to as "5 nines") to ensure safety for human consumption.

- Industrial-grade liquid nitrogen has a lower purity compared to the food-grade variant.


Safety Considerations

While liquid nitrogen is sometimes perceived as having safety risks, its low temperature causes it to vaporize rapidly upon contact with air, which inherently ensures a certain level of safety. However, proper safety precautions must still be taken, and safety awareness should be maintained at all times.


Performance Requirements

- Liquid nitrogen production capacity: 1-50 L/h
- Storage capacity: 120 L
- Operating environment temperature: 10 ºC - 38 ºC
- Control system: PLC touch screen
- Power supply: 200 V - 400 V, 3-phase, 50/60 Hz



 

Product Applications

In industrial production, liquid nitrogen-obtained via compressed liquid air fractionation-serves as a deep cryogen. A key advantage of liquid nitrogen is its chemical inertness: it can contact biological tissues directly, inducing immediate freezing without damaging biological activity, which further supports its utility as a deep cryogen. Its main applications are as follows:

 

1. Food Industry: Rapidly freezing and transporting food products, or manufacturing ice-based items.
2. Scientific Research: Enabling research in low-temperature physics.
3. Science Education: Demonstrating low-temperature states. For instance, soft objects soaked in liquid nitrogen at room temperature become as brittle as glass.
4. Superconductivity Field: Providing the low temperature required for high-temperature superconductors to exhibit superconductivity.
5. Biological Preservation: Acting as a cryogen to rapidly freeze biological tissues, preventing tissue damage.
6. Agrichemical Production: Supporting the manufacturing of industrial nitrogenous fertilizers.
7. Chemical Industry: Facilitating chemical analysis and detection processes.