Nitrogen machine is used in many professions, used in petrochemical industry, coal chemical industry, natural gas chemical industry, heat treatment, bright annealing, maintenance heating, food green storage, food nitrogen packaging, vegetable preservation, wine sealing (tank) loading and retention and so on. If the nitrogen machine is used for a long time, the loss of the machine will be very large, so the nitrogen machine must be maintained in the ordinary operation process, and the service life of the nitrogen machine will be extended. jpg" style="width: 750px; width: 750px; height: 750px;"  />

1, the nitrogen machine needs the cutting-edge extension equipment supporting the cold drying machine, non-heat regeneration dry adsorbent and other equipment, to see whether it is normal operation, it is necessary to operate in accordance with the application of the book. In particular, the normal operation of the air dry equipment is crucial to the nitrogen production equipment. jpg" style="width: 750px; height: 750px;"  />

2, check the purity of nitrogen production equipment, gas production and other performance indicators; Check whether the oxygen meter (oxygen analyzer) equipped with the nitrogen production equipment is working normally, and whether it is necessary to replace non-metal expansion joints such as oxygen electrodes. jpg" style="width: 750px; height: 750px;"  />

3, the pipeline filter should be checked regularly, the filter element should be replaced on time, and the service life of the filter element is generally 2000-4000 working hours (depending on the air quality of the equipment is different); 7000h of activated carbon in activated carbon filter is necessary to replace; Gas storage tanks should be regularly blowdown. The quality of the compressed air is crucial to the normal operation of the nitrogen (oxygen) machine.

4, the nitrogen machine, nitrogen inlet valve and sampling valve are closed, and also close the power switch of the nitrogen machine. Wait for complete decompression of the system and pipes (exhaust gas from the system is concentrated oxygen, pay attention to fire safety, indoor air circulation dredging). The oxygen conditioning analyzer samples and adjusts the pressure of the reducing valve to 1.0bar, adjusts the sampling flow meter, and adjusts the gas volume to about 1. Pay attention to the sampling gas volume should not be too large. It is necessary to detect the concentration of nitrogen and investigate whether the oxygen content indicated by the oxygen meter meets the requirements.

5, if it is found that there is a lot of powder at the exit of the nitrogen machine, it is clear that there is aging or pulverization, and it is necessary to deal with it in time, and it is best to replace the equipment filler.