VPSA Oxygen Generator Module

OVERVIEW XINOZONE X-VOG VPSA OXYGEN CONCENTRATOR:

Oil free air compressor: This product is a patented product independently developed, with a safe and reliable structure. The core components are made of high-quality materials: imported leather bowls from the United States, anti freezing bearings, and pure copper brushless motors, combined with ultra-low temperature drive technology, can start normally in a low temperature environment of -20 ℃ without preheating.

The equipment is equipped with a double-layer filtration system, including a primary filter and an Italian GVS high-efficiency filter, which effectively purifies the intake air quality, protects the internal structure of the compressor, and significantly extends its service life. The molecular sieve adopts French CECA high-efficiency molecular sieve to ensure stable and reliable oxygen output concentration, while having a longer service life.

The shell is made of 1.2mm thick sheet metal, which is higher than the industry standard; The surface coating adopts air conditioning grade anti-corrosion technology to ensure that it will not rust for five years. The production standard of the whole machine is superior to the industry equipment requirements, with a 4-level waterproof capability, which can adapt to various complex environments and is widely applicable to various outdoor installation scenarios.

The circuit system is independently developed, with mature technology and low failure rate: the measured defect rate within three years is less than 0.05%.

FEATURES OF VPSA OXYGEN GENERATOR

Customized Four-Cylinder Oil-Free Air Compressor (Xinozone Innovation)

This customized air compressor is designed to reduce energy consumption and lower electricity costs.

Oxygen Generator Power Consumption Comparison:

VPSA Oxygen Generator (X-VOG): 540 W (10 L/min)

PSA Oxygen Generator: ≥800 W (10 L/min)

Air Consumption Comparison:

VPSA Oxygen Generator: 80 L/min

PSA Oxygen Generator: 140 L/min
(Note: The air‑to‑oxygen ratio of the PSA oxygen concentrator is higher than that of the VPSA oxygen concentrator.)

Larger Molecular Sieve Capacity

Operating at lower pressure, the VPSA oxygen generator incorporates twice the molecular sieve volume compared to PSA models. This design significantly reduces mechanical wear and extends the overall service life of the oxygen concentrator.

Real-time Monitoring &Pressure Stabilization

WORKING PRINCIPLE OF SMALL VPSA OXTGEN GENERATOR

The VPSA (Vacuum Pressure Swing Adsorption) oxygen generator operates on the principle of physical separation, extracting oxygen from air by isolating it from nitrogen to achieve a concentrated oxygen output. Its key components include a multi-function compressor, high-efficiency lithium-based molecular sieve towers, an electrical control board, cooling fans, silencers, solenoid valves, and balance valves. Below is an overview of the working process:

1. Air Filtration, Pre-treatment, and Compression

The unit should be operated in a clean, low-humidity environment.
Ambient air first passes through an air filter to remove dust and particulates, then is compressed to approximately 0.8–1 bar before entering the dual molecular sieve towers (Tower A/B).
Compared to PSA systems, VPSA simplifies the air treatment process by omitting components such as condensers and air-water separators. Conventional condensation methods would require oversized equipment and significantly increase overall energy consumption.

2. Molecular Sieve Adsorption Towers

The structure of the molecular sieve towers is generally similar to that in PSA systems, but with several refined design details:
① The bottom of each tower is filled with activated alumina;
② Selection of molecular sieve type, particle size, and performance characteristics is more demanding, requiring higher efficiency and stability;
③ Filling ratio, density, and compaction methods for the molecular sieve are more precise.

3. Vacuum Desorption and Regeneration

The adsorption saturation time of the molecular sieve must align with vacuum desorption to enable tower regeneration:
① The compressor applies a vacuum to deeply desorb the saturated tower;
② Waste gases from desorption—primarily nitrogen, moisture, and other trace gases—are vented, completing the regeneration cycle.

4. Alternating Solenoid Valve Operation

A dual-tower configuration is employed: while one tower adsorbs and produces oxygen, the other undergoes simultaneous vacuum desorption and regeneration. Solenoid valves switch between the two towers to ensure continuous oxygen supply. During switching, a pressure-equalization step recovers oxygen from the dead space, enhancing overall system efficiency.

5. Oxygen Output and Stabilization

The oxygen-enriched stream is directed to a buffer tank for pressure stabilization, then regulated by a flow control valve and humidified before final delivery. Oxygen concentration remains stable between 90–95%. Integrated sensors continuously monitor purity, and the system automatically adjusts operating parameters to maintain consistent output quality.

PRODUCT PARAMETER

APPLICATION FOR OXYGEN GENERATION MACHINE