In the process of producing high-purity oxygen (99.5%), the PSA oxygen generator has significant energy-saving advantages compared with traditional cryogenic oxygen production. Cryogenic oxygen production requires cooling the air to extremely low temperatures (around -183°C) for liquefaction and distillation. This process consumes huge amounts of energy. The PSA oxygen generator operates at normal temperature and mainly relies on pressure changes to achieve gas separation, and its energy consumption is relatively low. For example, the energy consumption of a PSA oxygen concentrator may be only 60% - 70% of that of cryogenic oxygen production for the same oxygen production.
99.5% Purity PSA Oxygen Generator Works
| Models | Capacity (Nm3/hr) | Purity | Power consumption of 1Nm3 oxygen produced (kw/h) | Number of bottles filled in 12 hours (pcs) | Operator needed |
| NTK-5P | 5 | 99.5% | 3.54 | 10 | 2 |
| NTK-10P | 10 | 99.5% | 2.52 | 20 | 2 |
| NTK-15P | 15 | 99.5% | 2.31 | 30 | 2 |
| NTK-20P | 20 | 99.5% | 2.13 | 40 | 2 |
| NTK-25P | 25 | 99.5% | 2.01 | 50 | 2 |
| NTK-30P | 30 | 99.5% | 2.09 | 60 | 2 |
| NTK-40P | 40 | 99.5% | 1.81 | 80 | 2 |
| NTK-50P | 50 | 99.5% | 1.94 | 100 | 2 |
| NTK-60P | 60 | 99.5% | 1.62 | 120 | 2 |
| NTK-80P | 80 | 99.5% | 1.92 | 160 | 2 |
| NTK-100P | 100 | 99.5% | 1.83 | 200 | 2 |
| Design basis: Altitude：≤500m;RH：≤80%;Temperature：0℃-38℃;Filling pressure: 150Bar 40L Type Standard Cylinder | |||||
The air separation of the oxygen generator is mainly composed of two adsorption towers filled with molecular sieves. Under normal temperature conditions, the compressed air enters the adsorption tower after being filtered, dewatered, dried and other purification treatments. In the adsorption tower, the nitrogen in the air is absorbed by the molecular sieves. It is adsorbed, so that oxygen is enriched in the gas phase, flows out from the outlet and is stored in an oxygen buffer tank. The molecular sieve that has completed adsorption in the other tower is quickly depressurized to analyze the adsorbed components. The two towers circulate alternately. Oxygen with a purity of ≥93±2% can be obtained. The automatic switching of valves in the entire system is automatically controlled by a computer.
Maintenance and care points
Adsorbent maintenance:
The adsorbent is a critical component of the PSA oxygen concentrator and it is crucial to check the performance of the adsorbent regularly. Over time, the adsorbent may become poisoned (contaminated by impurities) or aged. For example, when harmful substances such as sulfides in the air enter the adsorption tower, they may react chemically with the adsorbent, reducing the adsorption capacity of the adsorbent. Therefore, the adsorbent must be tested and replaced regularly. It is generally recommended to check the status of the adsorbent every 3-5 years.
Air pretreatment system maintenance:
The air pretreatment system includes air filters, dryers and other equipment. The air filter needs to be cleaned or replaced regularly to prevent dust and other impurities from clogging the filter and affecting the amount of air entering. The dryer should pay attention to check the status of the desiccant to ensure that it can effectively remove moisture from the air. If the desiccant fails and moisture in the air enters the adsorption tower, it will seriously affect the purity of oxygen and the normal operation of the oxygen generator. Generally speaking, the air filter element needs to be inspected and cleaned every 1-3 months, and the desiccant needs to be replaced every 6-12 months.
Electrical and control system maintenance:
Regularly check whether the wiring of the electrical system is firm and whether there is looseness, corrosion, etc. For the control system, ensure that the software program is running normally and the parameters are set correctly. For example, parameters such as the switching time of the adsorption tower and the readings of the pressure sensor need to be calibrated regularly. At the same time, attention should be paid to backing up the control system to prevent data loss or program damage. Inspections of the electrical system are recommended every 3 - 6 months, and software and parameter inspections of the control system can be performed every 6 - 12 months.
Hot Tags: psa oxygen generator 99.5%, China psa oxygen generator 99.5% manufacturers, suppliers, oxygen generator fish farm, generator oxygene purity 99, psa oxigen generator, oxygen making machine, generator oxygene, oxygen filling machine
