The separated air of the industrial oxygen generator is mainly composed of two adsorption towers filled with sieve. Under normal temperature conditions, the compressed air is filtered, dewatered and dried, and then enters the adsorption tower. The industrial oxygen generator is adsorbing The nitrogen in the air in the tower is adsorbed by the molecular sieve, and the oxygen is enriched in the gas phase, and it flows out from the outlet and is stored in the oxygen buffer tank. The molecular sieve that has been adsorbed in the other tower is rapidly depressurized, and the decompression is resolved. The adsorbed components are alternately circulated in two towers to obtain cheap oxygen with a purity of ≥90%. The automatic valve switching of the entire system is automatically controlled by a computer.
The working process of the industrial 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 left suction, equalizing pressure and right suction respectively. The time flow of left suction, equalization, 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 left suction inlet valve, left suction production valve, and right exhaust valve opening ports, so that these three valves are opened to complete the left suction process , At the same time the right adsorption tower desorbs. When the flow industrial oxygen generator 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 connects to the opening port of the pressure equalization valve, so that the valve opens to complete the pressure equalization process. 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 , At the same time the left adsorption tower desorbs. In each process, except the valve that should be opened, other valves should be closed.
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