Low Pressure Liquid Oxygen Plant

Low Pressure Liquid Oxygen Plant

The Low Pressure Liquid Oxygen Plant is an integrated, energy-efficient system designed for on-site liquid oxygen production under low-pressure operating conditions (typically 0.3-0.6 MPa). Leveraging NEWTEK’s core PSA (Pressure Swing Adsorption) and Cryogenic Separation technologies, it extracts, purifies, and liquefies oxygen from ambient air, delivering liquid oxygen (LOX) with purity ranging from 95% to 99.9995%. The plant features a modular design with key components including low-pressure air compressors, molecular sieve purification systems, cryogenic rectification towers, and vacuum-insulated storage tanks. Compliant with international standards (ISO, CE, ASME), it caters to medical, industrial, and remote scenario needs, ensuring safe, stable operation while reducing energy consumption and operational risks associated with high-pressure systems.
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Description

Technical Parameters

 

 

China Low pressure Liquid Oxygen Plant

 


Low-Pressure Safety & Reliability: Operates at 0.3-0.6 MPa, minimizing leakage, explosion risks, and equipment wear; ideal for safety-sensitive environments like hospitals and densely populated industrial zones.

Energy Efficiency & Cost Savings: Optimized low-pressure process design reduces energy consumption by 20%-25% vs. high-pressure counterparts; lower operational and maintenance costs due to simplified system structure.

Flexible Deployment & Scalability: Modular configuration supports capacity scaling (50-50,000 Nm³/h) without disrupting operations; compatible with road/air transport for remote or emergency deployment.

High Purity & Stable Output: Integrates PSA and cryogenic separation technologies to maintain 95%-99.9995% oxygen purity; PLC automatic control ensures consistent performance and real-time parameter monitoring.

 

 

Low Pressure Liquid Oxygen Plant

 

working principle
 
 
 

Low-Pressure Air Preprocessing

Ambient air is drawn into a low-pressure compressor (0.3-0.6 MPa), then filtered to remove dust, oil, and moisture, protecting downstream components.

 
 

PSA Adsorption Purification

Dual-tower molecular sieves selectively adsorb nitrogen and impurities, producing 90%-95% pure oxygen continuously through alternating adsorption-regeneration cycles.

 
 

Cryogenic Liquefaction

Oxygen-rich gas is cooled to -170℃~-196℃ via cryogenic refrigeration; rectification towers separate residual nitrogen by boiling point differences, condensing pure oxygen into LOX under low pressure.

 
 

Low-Pressure Storage & Output

LOX is stored in vacuum-insulated tanks to minimize cold loss; output is regulated via low-pressure vaporizers or direct LOX extraction, with PLC dynamic adjustment for stable flow and purity.

 

 

Low Pressure Liquid Oxygen Plant

why choose nEWTEK?

 

✅️Technical Prowess & Project Experience: As a global leader in gas solutions, NEWTEK boasts 20+ years of air separation expertise, with successful deliveries including Ghana's 30,000 Nm³/h and Peru's 4×40,000 Nm³/h air separation projects, validating its low-pressure technology maturity.


✅️Top-Tier Partnerships & Quality Assurance: Joint R&D with Hangzhou Oxygen Plant (China's leading air separation enterprise) ensures premium components; multi-stage quality inspections align with international standards for reliable performance.


✅️Customized Solutions: Leveraging "PSA + Cryogenic" dual technology platforms, NEWTEK tailors low-pressure systems to client-specific capacity, purity, and application needs, complemented by end-to-end services (design, installation, training).

✅️ Service & Rapid Support: With 10+ regional service centers worldwide, NEWTEK offers 24/7 bilingual technical support, 48-hour on-site response for overseas projects, and global spare parts warehouses enabling 72-hour component delivery.


✅️Cost-Effective Operations: Competitive pricing (15%-20% lower than international peers) combined with energy-efficient low-pressure design reduces long-term operational costs by 30%-40%.

 

 

FAQ

 

 

 

 

 

Q1: What is the operating pressure range, and how does it enhance safety?
A1: Operates at 0.3-0.6 MPa, lowering leakage and explosion risks, making it suitable for safety-sensitive environments like hospitals.

 

Q2: Can it meet medical-grade oxygen standards?
A2: Yes. The medical variant delivers LOX with ≥99.5% purity, complying with GB 8982-2014 and ISO standards for clinical use.

 

Q3: How much energy does it save compared to high-pressure plants?
A3: 20%-25% more energy-efficient, thanks to optimized low-pressure processes and high-quality core components.

Q4: What is the installation timeline for different capacities?
A4: Small-scale (≤500 Nm³/h): 1-2 weeks; large-scale (≥10,000 Nm³/h): 3-6 months, with NEWTEK's professional team ensuring efficient deployment.

Q5: Is capacity expansion possible in the future?

A5: Yes. Modular design allows adding modules without modifying existing systems, supporting seamless capacity scaling as demand grows.
 

Q6: What warranty and after-sales support are provided?

A6: 1-year full machine warranty, 2-year warranty for core components; lifetime remote troubleshooting, spare parts supply, and on-site maintenance.

 

 

 

 

 

 

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