VPSA Vacuum Pressure Swing Adsorption Oxygen Production Generator Plant System:
The VPSA oxygen system is mainly composed of blower, vacuum pump, switching valve, adsorber and oxygen balancing tank. After the dust particles are removed by the inlet filter, the raw air is pressurized by the Roots blower to 0.3-0.5barg and enters one of the adsorbers. The adsorber is filled with adsorbent, in which water, carbon dioxide, and a small number of other gas components at the adsorber entrance are loaded at the bottom of the activated alumina adsorption, then nitrogen is loaded at the activated alumina upper zeolite adsorption. Oxygen (including argon) is a non-adsorptive component and is discharged from the top outlet of the adsorber as product gas to the oxygen balancing tank.
When the adsorbent is absorbed to a certain degree, the adsorbent will reach saturation state. At this time, the vacuum pump is used to vacuum the adsorbent through the switching valve (opposite to the adsorption direction), and the vacuum degree is 0.5-0.7barg. The adsorbed water, carbon dioxide, nitrogen and a small amount of other gas components are extracted and discharged to the atmosphere, and the adsorbent is recycled.
VPSA oxygen production device because of low energy consumption, simple operation, in paper, glass, chemical industry, metallurgy, minerals, environmental protection, building materials, light industry, aquaculture, biotechnology and other fields have beenwidely used.
Vacuum pressure adsorption adsorption oxygen production device, under normal temperature conditions, the use of molecular sieve selective adsorption of nitrogen in the air, reduce the adsorption tower pressure to desorption adsorption of nitrogen in molecular sieve, so as to achieve adsorption - desorption cycle operation, continuous production of purity of 80%~95% or more oxygen.
1. The filtered air is transported by the blower and enters the adsorption tower A or B equipped with molecular sieve and activated alumina. When the air flows through the molecular sieve fixed bed in the tower, nitrogen molecules in the air are diffused into the molecular sieve solid under the adsorption force, and oxygen molecules and argon atoms pass through the bed tothe buffer tank for users to use.
2. After a period of adsorption, the molecular sieve particles are filled with nitrogen molecules, reaching the stage of adsorption saturation. At this time, the air inlet valve is closed, and the oxygen-rich air in the tower is used to wash the other tower just pumped. When the pressure drops to a certain value, the pressure equalizing valve is closed, and the inlet valve of the vacuum pump is opened to vacuum the tower body, and nitrogen is discharged.
3. After a certain degree of vacuum, use the oxygen rich in another tower and the middle part of the buffer tank product gas to wash the molecular sieve, so as to make the adsorbent completely desorption. After the desorption process of adsorbent is completed, the tower is charged with product gas, and the buffer valve is closed when the pressure reaches a certain low vacuum value, and the outlet valve of the blower is opened to charge the adsorption tower, so as to prepare for the next adsorption.
| Oxygen Yield: |
80-10000Nm3/h |
| Oxygen Purity: |
80%-95% |
| Pressure: |
0.1-0.7bar |
| Power Supply: |
380V/220V/50Hz or customized |
| Note: We can customize the plan according to your actual needs. |
The traditional method of oxygen production needs to cool the air to liquid and produce oxygen through distillation, which has high investment cost and slow start-up. VPSA oxygen generator works at normal temperature and pressure, with the following characteristics:
1. Low oxygen production cost.
2. The process is simple, less equipment, high level of automation, convenient operation.
3. start quickly, start about 10~15 minutes can be normal oxygen supply, easy to stop, intermittent operation.
4. Low working pressure and good safety.
5. Product purity and output easy to adjust, strong adaptability.
Vacuum Pump and Blower:
1.Various varieties and specifications, including positive pressure, negative pressure, dry type, wet type, with flow classification, convenient selection of users;
2.Using specially customized imported small clearance bearing positioning, to ensure that the fan blade wheel axial positioning is reliable, easy to adjust;
3.The impeller adopts integral casting structure, and the blade surface is of high precision (no need to trim during assembly), so that the impeller has complete interchangeability;
4.In addition to labyrinth seal form, shaft seal also has mechanical seal, packing seal and other forms to meet the needs of different media.
Oil-free Oxygen Compressor Unit:
1.All oil-free lubrication is clean and pollution-free.
2.High efficiency and low energy consumption.
3.High reliability, can run continuously for 24 hours.
4.The unit adopts air-cooled cargo water-cooled type to reduce the installation cost. Compact structure, low cost of operation and maintenance.
Double Eccentric Pneumatic Butterfly Valve:
1.Maximum pressure: ASME Class300.
2.Temperature resistance range: -46ºC~230ºC.
3.Unique dynamic load compensation seal design packing, eliminate the valve leakage.
4.Anti-fly-out design prevents the valve stem from being damaged and blown out.
5.Double eccentric design makes the butterfly plate and sealing surface separate quickly, reduce friction, high frequency and high service life, to ensure 3 million times of use.
6.Seat with automatic compensation design to maintain reliable seal.
7.The start speed is less than 1 second.
Molecular Sieve:
The oxygen system uses special molecular sieve with excellent adsorption performance, large adsorption capacity, fast adsorption rate and large oxygen and nitrogen separation coefficient, which can ensure the technical performance of the equipment is stable, low energy consumption and less investment.
Tank & Container:
Our company has Class I and II of pressure vessel design, production qualification and pressure pipeline installation license. Theprocessing equipment is perfect, the detection means is complete, the complete production technology, to ensure the quality of products.
Noise Reducing System:
1.Add a soundproof cover outside the blower inlet filter and the filter beside it.
2.Add a sound insulation cover to the blower and vacuum pump.
3.Carry out damping and noise reduction for part of the pipeline.
As an important energy gas in industrial production, oxygen is widely used in glass, papermaking, metallurgy, chemical industry, environmental protection and other industries.
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