Nitrogen, as the most abundant gas in the air, is inexhaustible and used inexhaustible. It is colorless, odorless, transparent, subinert gas, and does not retain life. High purity nitrogen is often used as a protective gas to block oxygen or air sites. The content of nitrogen (N2) in the air is 78.084% (the volume group of various gases in the air is divided into: N2:78.084%, O2:20.9476%, argon: 0.9364%, CO2: 0.0314%, other H2, CH4, N2O, O3, SO2, NO2, etc., but the content is very small), molecular weight is 28, boiling point: -195.8℃, condensation point: -210℃.

Pressure swing adsorption nitrogen making machine technology is pressure adsorption, atmospheric pressure desorption, it is necessary to use compressed air. The best adsorption pressure of carbon molecular sieve is 0.75~0.9MPa, and the gas in the whole nitrogen production system is pressurized and has impact energy. Therefore, it is necessary to pay attention to safety when equipment, debugging, operation and maintenance, and must not face gas at close range. Non-professionals or without permission, do not tamper with pipe valves, pressure gauges and other components in the system. When internally disassembled, it is necessary to acknowledge that the internal pressure is zero.

Nitrogen production system The hollow press, pressure swing adsorption nitrogen production machine, cold dryer or other gas drying equipment, nitrogen production host, nitrogen purification equipment and other equipment must be connected to 380V or 220V power supply. The following table describes the power supply conditions.

Voltage V tolerance % Phase frequency Hz tolerance %

380 ±5 Three-phase 50 ±1

220 ±5 single phase 50 ±1

It is necessary to pay attention to safe use of electricity (voltage over 36V is harmful to people)! Please carefully read the power requirements of each device, and strictly connect the power supply according to the demand. Use 220V power supply equipment do not use 380V power supply, must have grounding protection to avoid short circuit. Non-professionals or unauthorized personnel should not tamper with the electrical circuit in the nitrogen system.

High purity nitrogen, as an inert gas blocking air or oxygen, is easy to asphyxiate people in a sealed environment. When used, it is necessary for personnel to be in an environment with excellent ventilation, and people or animals should not be in a sealed environment filled with high-purity nitrogen to avoid casualties. When an incident occurs, the victim is quickly transported to an open, ventilated atmosphere for artificial respiration.

Because the gas in the whole nitrogen production system is under pressure, it is necessary to avoid the slagging impact of the pressure gas. Do not stand on the exhaust ports of air compressors, cold dryers, gas drying equipment, nitrogen production hosts, and nitrogen purification equipment. The connecting pipes in the entire system must be solid and sealed, and recognized by the equipment seller to avoid air leakage or pipeline rupture, casualties or asset damage.

Because the entire nitrogen system needs to use 380V or 220V power supply, the pressure swing adsorption nitrogen machine please pay attention to the safety of electricity! Non-professional personnel or other personnel without permission and training should not operate electrical appliances or tamper with electrical circuits.

The protection of equipment in the nitrogen production system mainly includes the protection of air compressors, cold and dry machines, filters and nitrogen production hosts. The usual protection of air compressor is to often check whether the sewage outlet of the air compressor storage tank is blocked, and whether the heat dissipation hole is blocked; The radiator of the cold dryer should be cleaned frequently; The filter outlet should always check whether it is blocked; The exhaust port of the nitrogen silencer should always be checked whether it is dredged. All equipment appearance should be kept clean and clean, often wiped with a damp cloth or neutral soapy water.

The protection of the oil screw air compressor is primarily the periodic replacement of the intake air filter (which will be blocked by dust), as well as the annual replacement of the lubricating oil and oil separator. The protection of the compressor also includes the periodic replacement and replacement of the oil (if necessary). Oil-free piston air compressors also require regular replacement of piston rings and replacement of lubricants. In order to ensure the stable and reliable operation of the nitrogen system and the long life operation of the compressor, it is necessary to protect the compressor according to the periodic protection methods and methods recommended by the compressor manufacturer.

The periodic protection of the air-cooled cold dryer is mainly periodic purging and cleaning of the sewage outlet; The water-cooled cold dryer is mainly to clean the water condenser regularly to prevent scale deposition and blockage. Please read the operation and protection instructions of the cold dryer carefully, and strictly protect the cold dryer according to the cycle protection methods and methods recommended by the cold dryer manufacturer.

The periodic protection of the filter is mainly to replace the filter element regularly according to the use of the filter. If the filter pressure difference is found to be too large, please replace the filter element in time. Please refer to the filter manufacturer recommended cycle protection methods and methods to protect the filter.