Products / Nitrogen Generator / PSA Nitrogen Generator
HBFD Series
PSA nitrogen generator is an automatic equipment which uses high-quality carbon molecular sieve as adsorbent, employing pressure swing adsorption technology at ambient temperature to separate oxygen and nitrogen from compressed air, producing nitrogen gas with purity up to 99.5% (99%–99.999% optional). It features low energy consumption, stable performance, and fully automatic operation, widely used in electronics, food preservation, chemical processing, metallurgy, heat treatment, pharmaceutical and other industries requiring high-purity nitrogen.
Pressure swing adsorption (PSA) nitrogen generator is an advanced gas separation equipment that uses high-quality, efficient carbon molecular sieve as the adsorbent. Operating on the principle of pressure swing adsorption at ambient temperature, it separates compressed air to continuously produce high-purity nitrogen gas.
The PSA nitrogen generator typically consists of two parallel adsorption towers controlled by a fully automated PLC control system. The system strictly follows a programmed sequence, alternating between pressurized adsorption and depressurization regeneration, to achieve nitrogen-oxygen separation and obtain the desired high-purity nitrogen.
| (Nitrogen Purity) HBFD97 nitrogen generator nitrogen purity: 97% | |||||
| Model | Nitrogen production | (Nm3/min) Effective air consumption | (DNmm) Inlet pipe size | (DNmm) Outlet pipe diameter | LWH (mm) Host |
| HBFD97-20 | 20 | 0.67 | DN15 | DN15 | 12506001400 |
| HBFD 97-30 | 30 | 1.00 | DN 20 | DN15 | 12506001850 |
| HBFD 97-40 | 40 | 1.33 | DN20 | DN25 | 1450 7001825 |
| HBFD 97-50 | 50 | 1.67 | DN25 | DN25 | 1150 11301900 |
| HBFD 97-60 | 60 | 2.00 | DN25 | DN40 | 1150 11301900 |
| HBFD 97-80 | 80 | 2.7 | DN32 | DN40 | 1750 8252090 |
| HBFD 97-100 | 100 | 3.3 | DN32 | DN40 | 1800 8502420 |
| HBFD 97-120 | 120 | 4.0 | DN40 | DN40 | 1800 850 2090 |
| HBFD 97-150 | 150 | 5.0 | DN40 | DN40 | 1850 925 2100 |
| HBFD 97-180 | 180 | 6.0 | DN50 | DN40 | 1850 9252390 |
| HBFD 97-200 | 200 | 6.7 | DN50 | DN40 | 2000 9502350 |
| HBFD 97-250 | 250 | 8.3 | DN50 | DN50 | 2100 10002470 |
| HBFD 97-300 | 300 | 10.0 | DN65 | DN50 | 2100 1100 2530 |
| HBFD 97-350 | 350 | 11.7 | DN65 | DN50 | 2100 11002800 |
| HBFD 97-400 | 400 | 13.3 | DN65 | DN80 | 2200 1150 2820 |
| HBFD 97-500 | 500 | 16.7 | DN80 | DN80 | 2350 1400 2870 |
| HBFD 97-600 | 600 | 20.0 | DN80 | DN80 | 2350 1450 3060 |
| HBFD 97-800 | 800 | 26.7 | DN100 | DN80 | 2500 1500 3480 |
| HBFD 97-1000 | 1000 | 33.3 | DN 100 | DN 100 | 2950 1600 3810 |
| HBFD 97-1500 | 1500 | 50.0 | DN125 | DN 100 | 2950 1500 4620 |
| HBFD 97-1800 | 1800 | 60.0 | DN125 | DN 100 | 2950 1800 4820 |
| HBFD 97-2000 | 2000 | 66.7 | DN125 | DN100 | 2950 1800 5020 |
| HBFD 97-2500 | 2500 | 83.3 | DN200 | DN100 | 5900 1500 4520 |
| HBFD 97-3000 | 3000 | 100.0 | DN250 | DN125 | 5900 1500 4620 |
(Nitrogen Purity) HBFD98 nitrogen generator nitrogen purity: 98% | |||||
| Model | Nitrogen production | (Nm3/min) Effective air consumption | (DNmm) Inlet pipe size | (DNmm) Outlet pipe diameter | LWH(mm) Host |
| HBFD98-15 | 15 | 0.55 | DN15 | DN15 | 12506001400 |
| HBFD98-20 | 20 | 0.73 | DN 20 | DN15 | 1250 6001850 |
| HBFD98-30 | 30 | 1.10 | DN 20 | DN25 | 14507001825 |
| HBFD98-50 | 50 | 1.83 | DN 25 | DN25 | 115011301900 |
| HBFD98-60 | 60 | 2.2 | DN25 | DN40 | 16508002070 |
| HBFD98-80 | 80 | 2.9 | DN32 | DN40 | 1750 8252210 |
| HBFD98-100 | 100 | 3.7 | DN40 | DN40 | 18008501940 |
| HBFD98-120 | 120 | 4.4 | DN40 | DN40 | 1800 8502090 |
| HBFD98-150 | 150 | 5.5 | DN40 | DN40 | 1850 9252240 |
| HBFD98-160 | 160 | 5.9 | DN50 | DN40 | 18509252390 |
| HBFD98-180 | 180 | 6.6 | DN50 | DN40 | 20009502350 |
| HBFD98-200 | 200 | 7.3 | DN50 | DN40 | 2000 9502450 |
| HBFD98-250 | 250 | 9.2 | DN50 | DN 50 | 2100 10002660 |
| HBFD98-300 | 300 | 11.0 | DN65 | DN50 | 2100 11002680 |
| HBFD98-350 | 350 | 12.8 | DN65 | DN50 | 2200 11502720 |
| HBFD98-400 | 400 | 14.7 | DN65 | DN80 | 2250 12002750 |
| HBFD98-450 | 450 | 16.5 | DN65 | DN80 | 2250 1200 2950 |
| HBFD98-500 | 500 | 18.3 | DN80 | DN80 | 2350 14502870 |
| HBFD98-600 | 600 | 22.0 | DN80 | DN80 | 235014503160 |
| HBFD98-700 | 700 | 25.7 | DN 100 | DN80 | 2500 15003330 |
| HBFD98-800 | 800 | 29.3 | DN 100 | DN 80 | 260016003610 |
| HBFD98-900 | 900 | 33.0 | DN 100 | DN80 | 295016003810 |
| HBFD98-1000 | 1000 | 36.7 | DN 100 | DN100 | 2950 15004220 |
| HBFD98-1200 | 1200 | 44.0 | DN100 | DN 100 | 2950 16004240 |
| HBFD98-1500 | 1500 | 55.0 | DN125 | DN100 | 295016004840 |
| HBFD98-1800 | 1800 | 66.0 | DN 125 | DN100 | 2950 18005020 |
| HBFD98-2000 | 2000 | 73.3 | DN200 | DN100 | 5900 15004220 |
| HBFD98-2500 | 2500 | 91.7 | DN200 | DN100 | 5900 16004340 |
| HBFD98-3000 | 3000 | 110.0 | DN250 | DN125 | 5900 16004840 |
Pressure Swing Adsorption (PSA) nitrogen generation is an advanced gas separation technology that uses high-quality, efficient carbon molecular sieves as adsorbents. It operates on the principle of pressure swing adsorption at ambient temperatures to separate air and produce nitrogen gas with a purity of up to 99.5%. This process is based on the principle of "high-pressure oxygen absorption and normal pressure oxygen release".
PSA Nitrogen Generator System Diagram
The diffusion rates of oxygen and nitrogen molecules differ on the surface of the carbon molecular sieve. Smaller oxygen molecules (O₂) diffuse faster and enter the micropores of the efficient carbon molecular sieve more readily, while larger nitrogen molecules (N₂) diffuse more slowly and enter the micropores less frequently. This selective adsorption property leads to the enrichment of oxygen in the adsorbed phase and nitrogen in the gas phase within a short time, enabling effective separation of oxygen and nitrogen, ultimately resulting in gas-phase enriched nitrogen under PSA conditions.
After a period of time, the adsorption of oxygen reaches equilibrium. By lowering the pressure, the carbon molecular sieve releases the adsorbed oxygen — this is the regeneration process. Depending on the regeneration pressure, it can be classified into vacuum regeneration and normal pressure regeneration. Normal pressure regeneration facilitates thorough regeneration of the carbon molecular sieve, making it easier to obtain high-purity gas.
The PSA nitrogen generator is designed and manufactured based on pressure swing adsorption technology. Typically, it consists of two parallel adsorption towers controlled by a fully automated control system that strictly follows a specific programmable sequence, alternating between pressurized adsorption and depressurization regeneration to achieve nitrogen-oxygen separation and obtain the desired high-purity nitrogen gas.
The performance of the efficient carbon molecular sieve, particularly its dynamic adsorption capacity and separation factor, determines the quality of the nitrogen generator.
Complete Process Flow:
Selection: High-quality, efficient carbon molecular sieves are used to ensure maximum energy savings, lower power consumption, and reduced air waste ratio. The customized carbon molecular sieve from Hongbo Company features strong hardness, low powdering tendency, high nitrogen recovery rate, and long service life.
Air Waste Ratio: According to manufacturer’s data, when the adsorption pressure is 0.7MPa and the nitrogen purity is 99.5%, our company designs a 10% reserve with a waste ratio of 3:1. The waste ratio is a key indicator for determining operational cost — lower waste means lower electricity consumption for the air compressor and reduced operational costs.
Lifespan: The carbon molecular sieve used by our company has excellent capacity and stability, with a lifespan of 8–10 years.
The efficient carbon molecular sieve is packed using the “Blizzard” method, ensuring uniform distribution without dead angles and minimizing powdering. The adsorption tower uses multi-stage airflow distribution equipment and automatic compression devices for the carbon molecular sieve, guaranteeing adsorption performance and compression state, effectively extending the sieve’s lifespan.
Our uniquely designed extend-twist vibration platform packing method allows for denser and more uniform packing, reducing friction to a minimum and ensuring no powdering during the adsorption process.
The bottom of the adsorber features a unique lotus-style airflow distributor, which avoids high-pressure airflow impact on the carbon molecular sieve, extending its lifespan. It also ensures uniform gas diffusion, greatly improving efficiency and reducing energy consumption.
Inside the adsorption tower, special gas diffusion equipment allows compressed air to enter through a cyclone device, using specialized alumina ceramic balls to facilitate an “S”-shaped gas flow before contacting the carbon molecular sieve. This significantly reduces impact on the carbon molecular sieve while achieving more uniform gas adsorption, enhancing nitrogen generation efficiency.
We use well-known pneumatic angle seat valves and imported solenoid valves with an opening time of 0.05 seconds and a normal service life exceeding 2 million cycles, characterized by simple structure, reliable sealing, rapid closure, and easy maintenance — ensuring reliable operation of the nitrogen generation equipment.
Our nitrogen generator is equipped with a Siemens PLC control system, offering excellent controllability and a reasonable operational mode. It displays all operational parameters, statuses, and fault signals, automatically adjusting to load changes. The control system includes an LCD display control screen with flexible parameter settings and controls. The dryer can achieve interlocking start-stop control with the air compressor, as well as remote control from a centralized control center.
Utilizes nitrogen analyzer produced by Shanghai Changai Electronics for real-time purity monitoring and feedback control.
At the outlet of the nitrogen process tank, a nitrogen sampling port is set up for purity detection. If the nitrogen purity is unqualified, the analyzer outputs a signal to control the pneumatic valve for discharging unqualified nitrogen into the atmosphere. When nitrogen purity meets standards, qualified nitrogen is delivered to the user’s site.
Contact us for detailed product specifications and customized solutions.
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