A nitrogen generator is a process that separates nitrogen from the air using the principle of air separation, with common separation methods including membrane nitrogen generation, molecular sieve nitrogen generators, and cryogenic nitrogen generation.
It's widely known that when purchasing a nitrogen generator, various factors should be considered, and price cannot be the primary criterion for selection. In China, there are numerous suppliers of nitrogen generators, and customers should weigh all aspects when choosing a nitrogen generator, rather than making "how much is a nitrogen generator" the first condition for selecting equipment.
Key factors affecting nitrogen generator prices include:
Nitrogen purity
Purity is a critical technical parameter for gases, typically ranging between 95% to 99.999%. The higher the purity of nitrogen, the more expensive the nitrogen generator.
2. Nitrogen Flow Rate
Flow rate refers to the volume of nitrogen gas produced by a nitrogen generator per minute or hour, typically measured in cubic meters (m³). Currently, Hongbo nitrogen generators on the market can achieve flow rates ranging from a few cubic meters per hour to several thousand cubic meters per hour. Before determining the nitrogen flow rate, users can refer to the amount of bottled nitrogen or liquid nitrogen used to select a nitrogen generator. The price of nitrogen generators gradually increases with the increase in flow rate.
Export Pressure
Conventional nitrogen generators typically have an export pressure range of 0.1-0.7 Mpa, which is adjustable. However, certain industrial processes require nitrogen gas pressures above 0.7 Mpa. In such cases, a booster is needed to increase the pressure of the nitrogen gas to the required level.
4. Dryer Selection
In nitrogen generation systems, there are typically three types of dryers: cryogenic dryers, adsorption dryers, and combined dryers (which use both cryogenic and adsorption dryers). These three options significantly impact the air dew point and nitrogen dew point. The price gap between them is substantial as well. Therefore, when selecting a dryer, it's essential to consider both cost and the required nitrogen and air quality.
5. Atmospheric Dew Point
When moist air is compressed, the density of water vapor increases and the temperature rises. As compressed air cools, relative humidity increases. When the temperature continues to drop until the relative humidity reaches a certain level, water droplets precipitate from the compressed air, marking the "pressure dew point" of the compressed air. The dew point is essentially a temperature value, measured in degrees Celsius. While the unit of pressure dew point is ℃, it signifies the moisture content of the compressed air.
6. Compressor Selection
An air compressor is a compressor that compresses air as the medium. There are many types and varieties of air compressors, and selecting the right one is not just a matter of rational use of funds; it also directly affects the economic and reliable operation of the air compressor in the future. Therefore, the selection of an air compressor should consider three major aspects: economy, reliability, and safety.
7. Carbon Molecular Sieve Selection
Most carbon molecular sieve products from various manufacturers look quite similar, making it difficult for users to distinguish between imported and domestically produced sieves just by appearance. Hongbo advises that if a manufacturer claims to use imported molecular sieve in their nitrogen generator but offers a price significantly below market rates, one should be cautious. There's nothing wrong with purchasing equipment containing domestic molecular sieve, but the loss can be substantial if you pay for imported sieve quality but receive domestic one.
8. Accessory Selection
Generally, imported original parts tend to be more expensive than domestic ones, with specific functionalities varying based on usage conditions.
The above factors collectively influence the price of purchasing nitrogen generators. Customers should also consider the brand, technical level, and after-sales service of the production manufacturer when making a purchase.
