FAQ

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Precautions for Daily Use and Maintenance of Nitrogen Generators:

 

1. Ensure normal supply of power, air source, and temperature conditions required by the nitrogen generator, along with proper startup and shutdown procedures. Particular attention should be paid to maintaining stable power voltage to minimize damage to controllers and solenoid valves caused by power issues.

 

2. Continuously monitor the air receiver tank pressure, maintaining it between 0.6 and 0.8 MPa. Do not allow the pressure to fall below the rated value.

 

3. Inspect the automatic drain daily to prevent clogging and loss of drainage function. If clogged, slightly open the manual valve, close the automatic drain valve, then disassemble and clean the automatic drain. Use soapy water for cleaning.

 

4. Regularly monitor the three pressure gauges on the nitrogen generator, maintaining daily records of pressure fluctuations for equipment failure analysis. Continuously observe the flow meter and nitrogen purity to ensure output gas purity.

 

5. Conduct weekly checks on the refrigeration performance of the refrigerated dryer to prevent water ingress into the nitrogen generator and carbon molecular sieve poisoning caused by dryer malfunction.

 

6. Operate and perform routine maintenance according to the instrument operating guidelines. Conduct periodic checks on the sensitivity of solenoid valves and pneumatic valves, the pressure range of pressure regulators, the accuracy of gas analyzers, the tightness of adsorption towers, the exhaust condition of mufflers, and the cleanliness of flow meter inner tubes.

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Nitrogen generators are widely used across various industries including oil and gas extraction, coal mining, chemical manufacturing, metallurgy, food and vegetable packaging, laser cutting and welding.

 

In oil and gas extraction, nitrogen produced by generators serves functions such as protection, transportation, blanketing, displacement, emergency response, maintenance, and nitrogen extraction. This application also involves specialized nitrogen generators designed for the oil and gas industry. This product features high safety, strong adaptability, and continuous production capability.

 

The chemical industry encompasses petrochemicals, coal chemicals, salt chemicals, natural gas chemicals, fine chemicals, new materials, and related derivative processing sectors. Nitrogen is primarily used for blanketing, purging, scrubbing, cleaning, pressurized transport, gas shielding, fine chemical processing, and new material applications.

 

Specialized nitrogen generators for metallurgical applications are primarily used in heat treatment, bright annealing, protective heating, powder metallurgy, sintering of copper, aluminum, and magnetic materials, precious metal processing, and bearing manufacturing. These products offer high purity and continuous production capability. Some processes require nitrogen containing a specific hydrogen content to enhance brightness and other properties.

 

Specialized nitrogen generators for mining are suitable for coal mining, gas extraction, and diluent applications. Available in three configurations—surface-mounted fixed, surface-mounted mobile, and underground mobile—they fully meet nitrogen demands across diverse operational conditions.

 

Food industry-specific nitrogen equipment supports green grain storage, nitrogen-flushed food packaging, vegetable preservation, wine can sealing, and storage.

 

Explosion-proof nitrogen generators are suitable for chemical, petroleum, and natural gas facilities requiring explosion-proof equipment.

 

Specialized nitrogen equipment for the electronics industry is primarily used in semiconductor packaging, electronic component manufacturing, LED and LCD production, and lithium battery manufacturing. These nitrogen generators offer high purity, compact size, low noise, and low energy consumption.

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Working Principle: The PSA nitrogen generator is a nitrogen production unit designed and manufactured based on pressure swing adsorption technology. It uses air as the feedstock and carbon molecular sieves (CMS) as the adsorbent. Employing the PSA principle, it selectively adsorbs air using molecular sieves filled with micropores to achieve oxygen-nitrogen separation. Typically employing two adsorption towers in parallel, a fully automated control system strictly manages the sequence according to specific programmable logic. The towers alternate between pressurized adsorption and depressurized regeneration to complete nitrogen-oxygen separation, yielding the required high-purity nitrogen gas.

 

1. Pharmaceutical-grade nitrogen generators are primarily used in pharmaceutical production, storage, encapsulation, and packaging applications.

 

2. Specialized nitrogen generators for the petroleum and natural gas industry are suitable for nitrogen protection, transportation, blanketing, displacement, emergency response, maintenance, and nitrogen injection oil recovery in onshore petroleum and natural gas extraction, as well as offshore and deep-sea petroleum and natural gas extraction.

 

3. Specialized nitrogen generators for the chemical industry serve petrochemicals, coal chemicals, salt chemicals, natural gas chemicals, fine chemicals, new materials, and related derivative processing sectors. Nitrogen is primarily used for blanketing, purging, displacement, cleaning, pressurized transport, chemical reaction agitation, synthetic fiber production protection, and nitrogen-filled protection.

 

4. Specialized nitrogen generators for metallurgy are suitable for heat treatment, bright annealing, protective heating, powder metallurgy, copper/aluminum processing, magnetic material sintering, precious metal processing, and bearing production.

 

5. Specialized nitrogen generators for coal mining are suitable for fire prevention/extinguishing and methane/coal gas dilution during coal extraction.

 

6. Specialized nitrogen generators for the rubber and tire industry are suitable for nitrogen protection and molding during the vulcanization process of rubber and tire production.

 

7. Specialized nitrogen generation equipment for the food industry is suitable for green grain storage, nitrogen-flushed food packaging, vegetable preservation, and the sealing (canning) and storage of alcoholic beverages.

 

8. Nitrogen generators are suitable for locations with explosion-proof requirements for equipment, such as chemical plants and oil and gas facilities.

A The role of nitrogen generators in laser cutting primarily includes the following aspects:
 
1. Preventing oxidation and improving cutting quality  
   As an inert gas, nitrogen can create an oxygen-free environment in the cutting area, preventing metal materials from reacting with oxygen at high temperatures and avoiding the formation of oxide layers, burrs, or discoloration on the cut surface.
 
2. Assisting in blowing away and removing molten slag  
   High-pressure nitrogen can quickly blow away molten metal and residues from the cutting area, reducing slag adhesion and ensuring a clean cutting seam, thereby improving cutting precision and efficiency. Additionally, it reduces particle interference along the laser beam path, preventing laser distortion.
 
3. Protection of Laser Equipment*  
   Nitrogen is used to purge the optical head, lenses, and optical path of the laser cutting machine, removing dust and contaminants to prevent damage to optical components caused by high temperatures or contamination, significantly extending equipment lifespan.
 
4. Enhancement of Cutting Efficiency*  
   Nitrogen's high thermal conductivity rapidly dissipates heat from the cutting area, accelerating the cutting process.
 

A The role of nitrogen generators in the food industry is primarily reflected in the following areas:

1. Preservation and extended shelf life: Nitrogen-filled packaging inhibits microbial growth and oxidation reactions, thereby extending the shelf life of foods such as potato chips, meat products, and seafood.

2. Maintaining quality and color: Prevents color changes, texture alterations, and nutrient loss caused by oxidation, while preserving natural color.

3. Processing and packaging optimization: Controlling the gas environment in baking and fried foods to improve texture; utilizing liquid nitrogen for rapid freezing or maintaining low temperatures in cold chain logistics to reduce quality loss.

4. Food safety: Using nitrogen as an inert gas in sterile packaging to reduce bacterial growth; employing nitrogen purging during food washing processes to enhance hygiene and safety.

5. Economic and environmental benefits: Replacing traditional liquid nitrogen or bottled nitrogen gas reduces transportation costs and storage space while minimizing energy consumption and environmental pollution.
In summary, nitrogen generators ensure food quality, extend shelf life, and enhance production efficiency through technological means, making them indispensable key equipment in the food industry.

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Whether the cost and price of PSA nitrogen generators are high depends on specific requirements:

The initial investment is high, but operating costs are low, making them suitable for medium-scale applications with high purity requirements.

Prices vary greatly, so it is necessary to select based on purity, gas production volume, configuration, and application scenario.

They offer a clear cost-performance advantage, especially in small- and medium-scale applications and low-flow requirements, with long-term economic efficiency superior to cryogenic methods and liquid nitrogen.