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Nitrogen producing devices

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    • Nitrogen flowrate: 1 - 6000m³/h

      Nitrogen purity: 95% - 99.9995% (100% - oxygen content)

      Dew point:  ≤- 45℃(- 70 ℃ can be customized)

      Nitrogen pressure: 0.5~6Bar,adjustable

      Suitable environment: temperature -15~45℃    humidity<80%    excellent ventilation 

      Compressed air conditions:

      Temperature: 0-30℃

      Pressure: 7.0-8.0Bar   

      Pressure dew point:<10℃ 

      Others: dust ≤ 0.01 μm   No oil, VOC and components of sulfur and nitro

      ※Declaration when ordering if beyond the operating range

      ※Too high temperature of the gas supplied will reduce the production capacity

      Pressure swing adsorption (abbr. PSA) is a gas separation technology. It bases on the different adsorption performance of various molecules in molecular sieves to separate the gases from their mixture. Air separation uses air as feed, and it can separate nitrogen and oxygen from the air by the selective adsorption of oxygen and nitrogen on a kind of high-effective and high-selectivity solid adsorbents. Separating nitrogen and oxygen with carbon molecular sieve is resulted from the different diffusion rate of the two gases in the molecular sieve, for the smaller the molecule (say oxygen) the more rapidly it diffuses into the solid phase of the molecular sieve. In such a way nitrogen can be enriched in the gaseous phase. Along the diffusing process, oxygen will be adsorbed to equilibrium in the molecular sieve, and then oxygen may be desorbed from the molecular sieve just by depressurization, for the adsorption capacity will decrease with pressure decrease. This process is called regeneration. Two towers are usually connected parallel to perform adsorption by pressurization and desorption by depressurization in turn, in order to obtain continuous flow of product nitrogen.

      制氮机

      Air compression: Air is compressed to the desired pressure (7 - 8 bar) by a compressor, and conveyed into an air feed tank in which a part of oil and water moisture condenses and drains out of the bottom of the tank. The air stream is kept at constant flowrate and constant pressure for the nitrogen producing system.

      Air purification: Water moisture, oil and dust in the compressed air are removed through a refrigerating dryer and a filter, which supplies clean air feed for the following PSA system.

      Nitrogen produced by PSA: The clean compressed air is conveyed into the principal devices of producing nitrogen, and switched automatically between the adsorbing tower to adsorb oxygen and the desorbing tower to desorb oxygen in turn by pneumatic valve control, and now nitrogen is enriched at the top of the towers and transported into a surge tank through pipelines. Then the steady nitrogen is conveyed to the nitrogen-using spots after detection and measure.





      制氮机

      Function

      Standard 
      functions

      High functions

      Linkage

      Energy saving

      Hardware configuration

      GEMU、BURKERT main valves

      Packings cylinder-pressed

      Emergency stop

      Purity analyzer

      Purity analyzer

      Automatical shut-off/vent

      AirTAC Solenoid valve

      SIEMENS Touch screen display

      SIEMENS PLC

      OMRON Intermediate relay

      SIEMENS extended module


      RS485/RJ45 communication port


      Digital flowmeter


      Pressure transmitter


      Interface linking auxiliary system




      Second muffling

      Software functions

      Start mode setting

      Maintenance time setting

      Multifunctional alarm

      Multilevel password

      Instrument calibration cues

      Maintenance cues and protection

      Operating data storage

      Operating parameters modification

      MODBUS-RTU/TCP communication protocol


      Data Integration


      Paper-free simulating recorder


      Remote control




      Auxiliary system linkage




      Alarm setting

      Remote PC program

      Energy saving configuration

      PDC pressure-difference control




      VFC varying frequency control




      PID steady flowrate output






      ※ Energy efficiency grade: higher energy efficiency grade will means higher cost of manufacture.

      General AStandard BEnergy-saving CHigh efficient D
      120%100%95%86%


      ※氮气流量:指标准状况下氮气流量,单位:m³/h。


      ※ Purity level:Following table。

      purity level~999959999995999999995
      oxygen content~1%0.50%0.10%0.05%100ppm50ppm10ppm


      ※ When ordering, please select one of the product structures: skid-mounted, box-shaped, and movable.








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