After compressed by the air compressor, the air enters the air storage tank after dust removal, oil removal, and drying, and enters the left adsorption tower through the air inlet valve and the left inlet valve. The tower pressure increases, and the nitrogen molecules in the compressed air are zeolite With molecular sieve adsorption, the unadsorbed oxygen passes through the adsorption bed and enters the oxygen storage tank through the left gas production valve and oxygen gas production valve. This process is called left suction and lasts for tens of seconds.
After the left suction process is over, the left adsorption tower and the right adsorption tower are connected through a pressure equalizing valve to balance the pressure of the two towers. This process is called pressure equalization, and the duration is 3 to 5 seconds. After the pressure equalization is over, the compressed air enters the right adsorption tower through the air intake valve and the right intake valve. The nitrogen molecules in the compressed air are adsorbed by the zeolite molecular sieve, and the enriched oxygen enters the oxygen storage through the right gas production valve and oxygen gas production valve. Tank, this process is called right suction, and the duration is tens of seconds. At the same time, the oxygen adsorbed by the zeolite molecular sieve in the left adsorption tower is released back to the atmosphere through the left exhaust valve. This process is called desorption. On the contrary, when the left tower is adsorbing, the right tower is also desorbing at the same time.
In order to completely discharge the nitrogen released from the molecular sieve to the atmosphere, the oxygen gas passes through a normally open back-purge valve to purge the desorption adsorption tower, and the nitrogen in the tower is blown out of the adsorption tower. This process is called backflushing, and it is carried out simultaneously with desorption. After the right suction is finished, it enters the pressure equalization process, then switches to the left suction process, and continues to continue, so as to continuously produce high-purity product oxygen.
The working process of the oxygen generator is completed by the programmable controller controlling five two-position five-way pilot solenoid valves, and then the solenoid valves respectively controlling the opening and closing of ten pneumatic pipeline valves. Five two-position five-way pilot solenoid valves control the left suction, equalizing pressure, and right suction states respectively. The time flow of left suction, equalizing pressure, and right suction has been stored in the programmable controller. In the power-off state, the pilot air of the five two-position five-way pilot solenoid valves are all connected to the closing ports of the pneumatic pipeline valves. When the process is in the left suction state, the solenoid valve that controls the left suction is energized, and the pilot air connects to the opening ports of the left suction inlet valve, left suction production valve, and right exhaust valve, so that these three valves are opened to complete the left suction process , And the right adsorption tower desorbs at the same time.
When the process is in the pressure equalization state, the solenoid valve that controls the pressure equalization is energized, and other valves are closed; the pilot air is connected to the opening port of the pressure equalization valve, so that the valve is opened, and the pressure equalization process is completed. When the process is in the right suction state, the solenoid valve that controls the right suction is energized, and the pilot air connects to the right suction inlet valve, right suction production valve, and left exhaust valve opening ports, so that these three valves are opened to complete the right suction process , And the left adsorption tower desorbs at the same time. In each process, except the valve that should be opened, other valves should be in the closed state.
The above is about the process flow of industrial oxygen generators. Our company has a large number of oxygen generators. If you are interested, you can come and have a look. Not only that, in order to reflect the diversification of our business, we also have SMT Cleaning machine, PCB Cleaning Machine, PCB Separator, Reflow / Wave Soldering Machine, SMT Nozzle / Feeder.
