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VPSA Oxygen Plant Factory

MINNUO Group specializes in the research, development, design, and manufacture of VPSA oxygen-generating units, aiming to maximize cost savings for customers at the lowest possible price.

VPSA Oxygen Plant

VPSA special molecular sieve adsorbs impurities such as nitrogen, carbon dioxide, and water from the air.
The molecular sieve is desorbed under vacuum to produce high purity oxygen (30%~93%).
The energy consumption of VPSA is low; more larger the equipment, the lower the energy consumption.

VPSA Oxygen Plant Free Gas Solution

How Does VPSA Oxygen Plant Work?

Low-pressure adsorption vacuum desorption nitrogen oxygen in the air under low-pressure conditions, adsorption saturated molecular sieve desorption under vacuum conditions, the nitrogen from the discharge port, oxygen into the purification system, molecular sieve continuous adsorption decompression, and thus the cycle to produce a higher purity of oxygen (90 ~ 95%).
Compared to PSA, VPSA consumes less energy. The larger the oxygen plant, the lower the energy consumption.

VPSA Oxygen Plant Working Flow

The main equipment includes eight parts: Roots blower, wet Roots vacuum pump, adsorber,oxygen buffer tank, switching valve, instrument control system, electrical control system,instrument air system, etc.

The raw air is filtered to remove mechanical impurities.
After being pressurized by the Roots blower, it enters the air cooler and is cooled to 30-40℃,and enters from the bottom of the adsorber. In order to reduce noise, the inlet and outlet of theRoots blower are equipped with silencers.

After the air enters the adsorber, it passes through the 13X molecular sieve bed, and impurities such as moisture and carbon dioxide in the air are adsorbed by the molecular sieve.

When the clean air enters the CaX molecular sieve bed, the nitrogen in the air is adsorbed.
A large amount of unadsorbed oxygen and a small amount of nitrogen flow out from the outlet of the adsorber with the air flow, that is, the product gas.

In order to continuously obtain oxygen products, there must be at least one more adsorber; at the same time, one adsorber adsorbs and produces oxygen, and the other adsorber is pressurized or vacuum desorbed and regenerated, and used alternately.

According to the set time program, the PLC outputs an electrical signal to control the solenoid valve to act, and the solenoid valve is connected to the instrument air source. After the solenoid valve acts, the instrument air enters the pneumatic switching valve cylinder to open or close the pneumatic switching valve.

The product gas flowing out from the upper part of the adsorber first enters the oxygen buffer tank, which serves to balance the product gas pressure.

Technology Advatages

1.Energy consumption is more than 10%lower than that of international peers.
2.High-efficiency oxygen-generating molecular sieve,no need to replace after 10 years of use.
3.Unique airflow distribution technology ensures the stable operation of the entire device.
4.Special pneumatic valve for pressure swing adsorption,long life,2 million timesmaintenance-free.
5.Imported stainless steel high-performance butterfly valve,double eccentric,PTFE seal.
6.Comprehensive noise reduction measures make the measured noise lower than the nationalstandard.
7.Fully automated operating system,one-button start and stop,remote monitoring.

Technology Specification

1.Oxygen capacity:100-80000Nm³/h
2.Oxygen purity:30~93%,can be customized to meet your project needs
3.Oxygen production power consumption:oxygen purity at 90%,converted into pure oxygen powerconsumption of 0.32-0.37KWh/Nm3Oxygen pressure:≤20kpa (can be pressurized)
4.Annual open power:≥95%

Technology Advantage

Low power consumption, stable and reliable, fully automated production

The company has mastered the core technology of pressure swing adsorption oxygen production and has achieved breakthrough research results in core components – gas molecular sieves,adsorption towers, fans, etc. It has the ability to manufacture ultra-high purity, high stability, and low noise oxygen production systems.

Intelligent and low consumption

Low electricity consumption for oxygen production
Our VPSA system uses lithium-based molecular sieves, which are used in large quantities, and the power consumption of pure oxygen is between 0.3 and 0.32 degrees, while the power consumption of our new 380 VPSA project is 0.28 degrees, the best in the industry.

Simple operation and high degree of automation
1 motor and 11 valves can achieve fully automatic oxygen production, which can be unattended.

Low ancillary costs such as water, floor space and staffing
One third of the water, one half of the floor space and one quarter of the manpower of traditional deep-cooling for the same scale.

Full 3D design

We provide detailed designs for each project from process, equipment, civil plant and noise reduction, and provide detailed design and construction drawings. All designs are 3D. In order to provide tailor-made services to industries such as steel, cement, non-ferrous, electric power and environmental protection, we have a number of professionals in each industry to work with our clients.

Simulation of the acoustic flow field

The adsorption tower is divided into axial tower and radial tower according to the flow direction of the adsorption airflow, and the design is selected according to the scale of the device, site and other conditions. The design process uses professional computer fluid simulation software, and the airflow distribution is reasonable.

Sound insulation and noise reduction
Noise is the first and foremost problem to be overcome in large scale multi-set VPS parallel oxygen supply, our company draws on the noise reduction technology of submarines and relies on the advanced national defence noise reduction laboratory. The noise at the site is first measured and analysed professionally, and different noise reduction solutions are adopted for different frequencies of sound waves according to the characteristics of Popper.

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As a global supplier of PSA/VPSA oxygen supply systems, the Minnuo Group supplies equipment for the simplest to the most complex chemical and environmental oxidation processes.
Whether in medical, veterinary, or aquaculture facilities, water treatment plants, muffler shops, or environmental processes, the Minnuo brand symbolizes versatility.
Minnuo is the world's leading supplier of PSA/VPSA oxygen supply systems, providing the most cost-effective, efficient, and safe oxygen source for many oxygen applications today. Most efficient and secure source of oxygen for every application today.

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Why Choose Us?

MINNUO VPSA oxygen supply system is very reliable, economical, and offers remote monitoring.
MINNUO engineers will assist with construction and start-up and provide maintenance training. Stored data can be downloaded for performance evaluation. After installation, the customer offers ongoing engineering support free of charge.

Easy Installation

VPSA has a compact structure and reasonable component layout. Small VPSA equipment often adopts an overall skid-mounted design, which is easy to install. Large VPSA equipment we can provide professional team to install. Provide training after installation.

Technology Support

Comprehensive start-up service contracts are available. Under these contracts, MINNUO technical experts will perform the final turnkey maintenance and provide corrective services when required.

Safe and Reliable

Low pressure operation. No handling hazards or storage problems associated with the purchase of liquid oxygen or high pressure oxygen.
Built specifically for continuous, trouble-free operation. Eliminates the irregular supply of purchased oxygen.

Quality Warranty

Manufactured in strict accordance with all relevant regulations (e.g. ASME, ANSI, CE/PED, CSA, CRN, NEMA).

Fully Automatic, Maintenance-free

Regular maintenance is limited to the general maintenance of the compressor or blower and the regular replacement of the filter elements of the oxygen generator.

Energy Saving

The world's most energy efficient PSA and VPSA oxygen generation process. Generates oxygen on site for less than half the cost of purchased oxygen.

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VPSA Oxygen Plant Factory