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Basic Info.
Packaging & Delivery
Product Description
21Nm3/h Nitrogen Gas Generation PSA N2 Gas Generator Automatic Nitrogen System 99.999% Nitrogen Generator
Working principle
Based on the principle of pressure swing adsorption, high-quality carbon molecular sieve is used as the adsorbent. Due to the kinetic effect under a certain pressure, the diffusion rate of oxygen in the micropores of carbon molecular sieves is much greater than that of nitrogen. When the adsorption balance is not reached, oxygen is adsorbed in large quantities by the carbon molecular sieves, and nitrogen molecules are enriched in the gas phase, achieving oxygen and nitrogen separation.
Since the adsorption capacity of carbon molecular sieves for oxygen is significantly different with different pressures, lowering the pressure can desorb the oxygen molecules adsorbed by the carbon molecular sieves, regenerate the carbon molecular sieves, and enable repeated recycling. Two adsorption tower processes are used, one tower produces nitrogen by adsorption, and the other tower desorbs and regenerates. The opening and closing of the pneumatic angle seat valve is controlled by the PLC intelligent program controller, so that the two towers cycle alternately and continuously produce high-quality nitrogen.
Model | RK/CMS-21/59 |
Nitrogen production | 21Nm3/h |
Nitrogen purity | 100.00% |
Nitrogen pressure | 6bar |
Nitrogen dew point | -40ºC |
Generator power | 0.1kw |
Controll method | PLC Controller |
Air buffer tank | equipped with 1 pcs of 0.3m3 |
Nitrogen buffer tank | equipped with 1 pcs of 0.3m3 |
Dust filter | equipped with 1 pcs |
Inlet size | DN15 |
Outlet Size | DN25 |
Dimension | 1700*1550*2000mm |
Weight | 1100kg |
Required compressed air | |
Inlet air flow | ≥2.75m³/min |
Inlet air pressure | ≥8 bar |
Inlet air oil content | 0.01ppm |
Product Features
1. Full Automation All systems are designed for un-attended operation and automatic Oxygen demand adjustment.
2. Lower Space Requirement The design and Instrumentation makes the plant size very compact, assembly on skids, prefabricated and supplied from factory.
3. Fast Start-up Start-up time is about 30 minutes to get desired Oxygen purity. So these units can be switched ON & OFF as per Oxygen demand changes.
4. High Reliability It's very reliable for continuous and steady operation with constant Oxygen purity. Plant availability time is better than 93% always. 5. Zeolite Molecular Sieves Life Expected Zeolite Molecular Sieves life is more than 10-years i.e. whole life time of Oxygen plant. So no replacement costs.
6. Low investment and energy consumption
7. Simple operation and maintenance
1. The system adopts the one-click start way,Air compressor,Refrigerated Air Dryer, Adsportion dryer,Generator will start to work following the program one by one.
2. The oxygen generator equipped with unqualified oxygen gas warning alarm and automatic vent out ,then it can make sure that all oxygen that goes into the pipeline is good quality.
3. The oxygen generator equipped with colorful touch screen from Siemens Germany ,it can display the running condition , purity, pressure, and nitrogen rate of flow of whole system on-line;And it can also remind the maintenance time,record the trouble alarm, download the operating data.
Shanghai Rocky Machinery Co., Ltd. was established in 2003 and has 18 years of experience in the air compressor industry. It is an innovative enterprise integrating production, trade, service, research and development.
PSA Nitrogen/Oxygen Cylinder Filling System
Do not hesitate to send us mail with the following data.
1. N2 flow rate: _____Nm3/hr
2. N2 purity: _____%
3. N2 discharge pressure: _____Bar (150Bar or 200Bar)
4. N2 dew point: ______ ºC
5. Voltages and Frequency: ______V/PH/HZ
6. Local onsite altitude: ______ Meters above sea
7. N2 Application ______
8. Gas using: continuous or interrupt ? 24H/Day?