1,Variable pressure adsorption oxygen machine
Efficient, energy-efficient and convenient
Microcomputer co-control
Smart gas solutions
Product Description
Pressure swing adsorption oxygen production is to use zeolite molecular sieve as adsorbent, using the principle of pressure adsorption and pressure desorption to adsorb and release nitrogen from the air, so as to separate oxygen. Zeolite molecular sieve is a kind of spherical granular adsorbent which is processed by special pore type treatment process, and its surface and interior are full of micropores. The characteristics of its pore make it possible to realize the kinetic separation of O2 and N2. The separation of O2 and N2 by zeolites is based on the small difference of the kinetic diameters of the two gases. N2 has a faster diffusion rate in the micropores of zeolites, while O2 has a slower diffusion rate. The diffusion of water and CO2 in compressed air is similar to that of nitrogen. Finally, oxygen molecules are enriched from the adsorption tower.
2,The technical features of the oxygen generator after PSA are as follows
(1) Imported PLC control system and imported pneumatic angle seat valve with switching life up to 3 million times are adopted to ensure the continuous and reliable operation of the device.
(2) Imported PLC intelligent controller, easy to operate, stable operation, high degree of automation. Can choose touch screen control system, computer industrial control system.
(3) Reasonable internal components, uniform airflow distribution, reduce the impact of high-speed airflow.
(4) Special molecular sieve protection measures extend the service life of zeolite molecular sieve.
(5) The automatic interlock oxygen emptying device ensures the oxygen quality of the product.
(6) The operation of the whole machine can be: depending on the organic combination of advanced oxygen production process design, scientific gas distribution structure, adsorption tower with compound bed structure, unique molecular sieve filling process, unique molecular sieve protection measures and automatic compression compensation device of cylinder, it is conducive to the long-term use of oxygen molecular sieve.
3,process flow chart for reference only
4,Compressed air pretreatment
Because the molecular sieve in the main oxygen generator has high requirements for the quality of compressed air, and the gas temperature in the compressed air is high, and it contains a lot of water, certain dust and oil mist, so before the compressed air enters the oxygen generator, it must be treated with water, oil and dust removal, and this part of the equipment is mainly for this purpose.
The purification of compressed air is very important, please do not ignore this point! Because the quality of compressed air purification treatment is directly related to the service life of molecular sieve, which is directly related to the long-term effective use of oxygen generator.
Adsorption dryer or freezing dryer are mainly used to remove water from compressed air.
Different types of multi-stage filters with different filtering accuracy are mainly used for oil, water and dust removal of compressed air. Generally speaking, for oil-free air compressors, one to two-stage filters are required, mainly for dust removal and water removal; for oil-bearing air compressors, three to four stage filters are required, mainly for oil removal, water removal and dust removal.
In high humidity environment, it is recommended to install special blowdown tank to filter a large amount of water vapor in compressed air.
Product Parameters
|
Oxygen flow
|
1~200Nm3/h |
Oxygen purity
|
30%-98% |
Oxygen dew point
|
≤-45ºC |
Export pressure
|
0.1~0.8Mpa |
In order to get access easily for the O2 continuously for the hospital, an onsite PSA oxygen generation system is a fast response and convenient solution.
A PSA oxygen generation system for ONLY
one-time investment, costing merely for the simply maintain and the electricity fee to generate the O2 gas by yourself.
The outlet pure O2 gas can supply both of the pipes and the cylinder filling applications.
5,DMS streamlines the design process
Based on the data system mining, application, processing
Through the optimization of process design, the connection between valve and line effectively reduces gas loss and improves the utilization rate of air compressor
Pressure differential filtration treatment technology
6,The pneumatic valve electronic valve is connected
The airflow accuracy is effectively regulated by the joint control of pneumatic valve and electronic valve. At the same time easy to install and start
7,Cavity filling technology
Using cavity filling technology, the intrusion problem of water and dust in external air is effectively reduced
The arrangement of molecular sieves is more uniform, the gas consumption ratio is reduced, the filling is reduced, and the equipment is more energy-efficient
FAQ
1.What is the purity of the PSA oxygen machine?
The average PSA oxygen machine is 90%-93% pure.
Our PSA oxygen machine can reach 95%,98%,up to 99%
2.How PSA oxygen machines are maintained
The daily maintenance of the oxygen machine is relatively simple:
A,Air compressor to regular maintenance, air filtration, oil concerns, oil in accordance with the instructions to regularly call manufacturers to replace.
1. Air compressor
PSA air separation oxygen production requires low pressure air to enter the oxygen generator, and air compressor is needed to prepare low pressure air. If an oil air compressor is selected, a corresponding air filter device should be added at the back end of the air compressor.
Air compressor exhaust volume according to the specifications of the oxygen machine. It is suggested that the displacement capacity of screw air compressor is generally higher than that of oxygen generator
Air capacity is 10~15% larger, piston air compressor is generally 20~25% larger than the required exhaust capacity.
The rated exhaust pressure of air compressor is best selected as 0.5~0.7MPa, and the exhaust pressure is too high or too low.
For places with an altitude of ≥500m, atmospheric pressure should be considered when choosing air compressor. Please consult the air compressor supplier or consult our company.
The oil content in the compressed air discharged by the air compressor is recommended to be less than 10ppm w/w, and the use of oil-free air compressor is recommended.
2. Compressed air pretreatment equipment
Because the molecular sieve in the oxygen making machine has a high quality requirement for compressed air, and the gas temperature in the compressed air is high, and contains a lot of water and certain dust, oil mist, so the compressed air must be dehydrated, deoil, dust removal and other treatment before entering the oxygen making machine. This part of the equipment is mainly for this purpose.
The purification of compressed air is very important, which please do not ignore customers! Because the quality of compressed air purification is directly related to the service life of molecular sieve, so as to directly relate to the long-term effective use of oxygen generator.
Adsorption dryer or freezing dryer is mainly used for dewatering compressed air.
Different types of multistage filters with different filtration precision are mainly used for oil removal, water removal and dust removal of compressed air. Generally speaking, for oil-free air compressor, it is necessary to configure one or two stage filters, mainly for dust removal and water removal; For oil-bearing air compressor, it is necessary to configure three to four filters, mainly for oil removal, water removal and dust removal.
In the high humidity environment, it is recommended to configure special sewage tank to filter out a large amount of water vapor in the compressed air.
3. Oxygen generator
Oxygen generator is composed of three parts: adsorption tower, control cabinet, and includes skid mounted chassis, pipeline valves, solenoid valves, pressure reducing valves, efficient silencers, flow meters, pressure gauges, connecting pipelines and other accessories.
The requirements for compressed air of oxygen generator are as follows:
Air pressure: 0.5 ~ 0.7Mpa residual oil content: ≤ 0.008ppm solid impurities: ≤ 0.01
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