Nitrogen generator is a set of nitrogen extraction equipment, its main application fields are: aerospace, nuclear power, nuclear energy, food and medicine, petrochemical, electronic industry, materials industry, national defense military and scientific experiments and other fields.



The generator using electrochemical separation method and physical adsorption method can produce pure nitrogen, oxygen and other gases. It uses constant potential electrolysis method, using microporous film (such as asbestos film) as the separator of two electrodes, porous gas diffusion type oxygen electrode cathode, nickel network as the anode, and electrode installation is a hard support structure. The generator can work stably under the pressure difference of nitrogen and oxygen chamber, can avoid the cathode hydrogen precipitation, and ensure the purity of nitrogen generated gas. The specific method of producing nitrogen is to send the gas into an electrolytic cell with electrolyte as the raw material, and add a direct current of voltage between the two electrodes. At this time, the oxygen in the air in the tank is absorbed and nitrogen is obtained. The electrolyte adopts "forced circulation mode", and the electrolyte is driven by the electromagnetic pump to circulate in the liquid path, which improves the electrolytic efficiency. Nitrogen produced by this principle has many problems.

PSA pressure swing adsorption principle is applied, air is used as raw material, oxygen molecules are smaller than nitrogen molecules, pressure through the micro-porous carbon molecular sieve, oxygen molecules are preferentially adsorbed, nitrogen through the molecular sieve gap into the enriched nitrogen buffer tank; A column of pressurized adsorption and enrichment of nitrogen, a column of decompression desorption molecular sieve regeneration, PLC microcomputer automatic control, the two columns work alternately to continuously produce the required purity of nitrogen.



First, electrochemical separation method and physical adsorption method (need to "add liquid") Overview: The generator using electrochemical separation method and physical adsorption method can produce pure nitrogen, oxygen and other gases. It uses constant potential electrolysis method, using microporous film (such as asbestos film) as the separator of two electrodes, porous gas diffusion type oxygen electrode cathode, nickel network as the anode, and electrode installation is a hard support structure. The generator can work stably under the pressure difference of nitrogen and oxygen chamber (1MPa), which can avoid the precipitation of cathode hydrogen and ensure the purity nitrogen of the gas produced. The specific method of producing nitrogen is to send the gas into the electrolytic cell with electrolyte as the raw material, and add direct current with voltage ≤ 1.5V between the two electrodes. At this time, the oxygen in the air in the tank is absorbed and nitrogen is obtained. The electrolyte adopts "forced circulation mode", and the electrolyte is driven by the electromagnetic pump to circulate in the liquid path, which improves the electrolytic efficiency. Nitrogen produced by this principle has many problems. The nitrogen generator can be used for gas chromatograph as carrier gas, analysis of the composition of the component requirements are not high industry.

Second, the use of gas chromatography technology with new synthetic molecular sieve separation (no need to "add liquid") : This is a new type of air separation method, which takes compressed air as raw material, synthetic molecular sieve as adsorbent, gas chromatography separation and adsorption process, at normal temperature and low pressure, the use of oxygen and nitrogen in the air in the molecular sieve diffusion rate is different, the oxygen and nitrogen to be separated, nitrogen purity and gas production can be adjusted according to customer needs. The generated gas flow rate is stable, nitrogen purification is thorough, the produced nitrogen purity is high, up to 99.9995% pure nitrogen, suitable for various gas chromatographic detectors. This series of high-purity generators can produce high-quality and high-purity nitrogen continuously at the push of a switch, stable and reliable operation, and most importantly, it does not require any chemical consumables. Easy to operate, can be unattended 24 hours. And it can operate without any trouble without any supervision and minimum maintenance.





When the mixed gas is driven by the pressure difference on both sides of the membrane, the gas with relatively fast penetration rate and water, oxygen and carbon dioxide are enriched on the permeable side of the membrane, while the gases with relatively slow penetration rate such as nitrogen, carbon monoxide and argon are enriched on the retention side, so as to achieve the purpose of mixed gas separation. When pressurized purified air is used as the air source, inert gases such as nitrogen are enriched and integrated with high purity for production applications, and oxygen-rich air is discharged from the permeating side. The nitrogen membrane system can increase the nitrogen in the cheap air from 78% to more than 95%, and can get up to 99.9% pure nitrogen. The nitrogen generator can be used for gas chromatograph as carrier gas, analysis of the composition of the component requirements are not high industry.

Separation with new synthetic molecular sieve using gas chromatography technology (no "liquid addition" required) : This is a new type of air separation method, which takes compressed air as raw material, synthetic molecular sieve as adsorbent, gas chromatography separation and adsorption process, at normal temperature and low pressure, the use of oxygen and nitrogen in the air in the molecular sieve diffusion rate is different, the oxygen and nitrogen to be separated, nitrogen purity and gas production can be adjusted according to customer needs. The generated gas flow rate is stable, nitrogen purification is thorough, the produced nitrogen purity is high, up to 99.9995% pure nitrogen, suitable for various gas chromatographic detectors. This series of high-purity generators can produce high-quality and high-purity nitrogen continuously at the push of a switch, stable and reliable operation, and most importantly, it does not require any chemical consumables. Easy to operate, can be unattended 24 hours. And it can operate without any trouble without any supervision and minimum maintenance.