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Nitrogen generators are used by many people, but how to extend the service life may not be understood. The following is a simple operation procedure. The

First, the nitrogen generator, the nitrogen inlet valve, and the sampling valve are all closed, and the power switch of the nitrogen generator is also turned off. Wait for the system and the pipeline to be fully decompressed. (Exhaust gas discharged from the system is concentrated oxygen. Pay attention to fire safety and indoor air circulation). Adjust the oxygen analyzer to sample and adjust the pressure of the pressure reducing valve to 1.0 bar. Adjust the sampling flow meter and adjust the gas volume to about 1. Note that the sampling gas volume should not be too large. Begin testing nitrogen purity. The

2. When the pressure of the compressed air source reaches 0.7MPa or more, open the shut-off valve for the total inlet of the nitrogen generator, and then adjust the pressure reducing valve to reduce the pressure to about 0.4-0.5Mpa. At the same time, pay attention to the pressure of the two suction cans and Whether the pneumatic valve works properly. The

3. Then turn on the power switch of the nitrogen generator on the PLC main control cabinet clockwise. Observe the pressure changes of the two adsorption towers and determine whether the two adsorption towers can switch normally. The pressure of the regenerator tower is zero, and the pressure of the two towers should be close to half the pressure of the original working tower. The

Fourth, open the power switch of the oxygen meter, and adjust the amount of sample flow, observe the oxygen content. According to the required nitrogen purity, the opening degree of the purity valve is adjusted, and the purity is automatically switched to the nitrogen storage tank after passing the qualification. The nitrogen storage pressure of the nitrogen storage tank is generally about 0.6 0.8 MPa. The

V. Close the entire system and all parts of the system. When the nitrogen adsorption tank pressure reaches 0.6 MPa, observe whether the nitrogen production system is working properly. The

6. Slowly open the vent inlet stop valve and adjust the flow to 1/2 of the nominal flow (Hospital Center Oxygen supply system). Adjust the opening of the nitrogen inlet valve to adjust the nitrogen purity and flow. The

7. Observe that the oxygen content indicated by the oxygen meter meets the requirements. When the nitrogen purity meets the requirements, open the pure gas outlet shut-off valve slowly, adjust the flow to the required flow rate, close the vent inlet shutoff valve, and put it into use when the equipment is operating normally.