For any machine, maintenance is very important, good maintenance can effectively extend the service life of nitrogen generator. In addition to maintenance, the correct use of nitrogen generator is also essential for the extension of machinery and equipment.

1. Turn off all power switches, including nitrogen generator, nitrogen inlet valve and sampling valve, and wait for complete pressure relief of system and pipeline. Adjust the oxygen analyzer for sampling, adjust the pressure of the pressure reducing valve to 1.0 bar, adjust the sampling flowmeter to adjust the gas volume to about 1. Pay attention to the sampling gas volume should not be too large, and start to detect the purity of nitrogen.

2. The stop valve of nitrogen generator can only be opened after the compressed air pressure reaches above 0.7MPa. At the same time, the pressure change of adsorption tank and the normal operation of pneumatic valve should be observed.

3. When the pressure of regeneration tower is zero, the pressure of two towers should be close to half of the original working tower pressure.

4. Close the whole system and all parts of the system, and observe whether the nitrogen generation system works normally when the pressure of adsorption tank of nitrogen generator reaches about 0.6MPa.