In the production process of many fields such as medicine, food and beverage sectors, compressed air will come into direct contact with food and medicine. Generally, the oil-lubricated screw compressors used in the market only perform simple post-processing on the compressed air. If such low-quality air comes into contact with food and medicine, it may cause harm to the human body. For this reason, when choosing a compressor, the air quality Also very important.
Key Takeaways
- Compressor quality
- Compressor upkeep
- Technology configuration
1.Compressed air standards
my country’s current compressed air purity level follows the ISO8573-1 standard. At present, no matter what form of compression method is used, the final monitoring items are only three major indicators: particle size (cleanliness), moisture (dew point), and oil vapor (residual oil content).
Residual oil content regulations: compressed air grade level one (ENISO8573-1) requirements: ≤0.01mg/Nm³; medical use cases (EAB407/1238): ≤0.1mg/Nm³; respiratory equipment (EN12021): ≤0.5mg/Nm³.
The significance of measuring dew point is in some plastic assistants and blow molding, high-voltage switchgear and transformers, painting processes, bottling, medical gases, and pipeline drying sectors. If there is too much moisture in the gas or compressed air, it will affect the quality of the product. affect. This moisture root causes corrosion of pipelines, shortens the life of pneumatic components, malfunctions of some pneumatic actuators, contaminates the entire compressed air life support system, and even root causes the entire production process to power down.
The significance of measuring the size of particles is that during the interference fit of mechanical products, the assembly process of pneumatic bearings, and the operation process, small particles will cause product scrapping and production process power-down.
- Compressor quality
During the design and setup process of a qualified air compression system, the impact of the quality and purity of compressed air on its own production process needs to be taken into consideration, and appropriate post-processing equipment must be installed, including cold dryers, suction dryers, and precision filtration. To enhance the quality and purity of compressed air. And during acceptance, it can be measured and analyzed with certain instruments and meters, and compared with relevant standards and testing specifications to check whether it is qualified.
- Compressor upkeep
Nevertheless, after the compressed air has been operated for a period of time or after a long period of operation, the parts of the compressor will be lost and the output performance will be reduced. For this reason, to guarantee that the compressor always produces qualified clean gas, it is necessary to pay attention during use. Carry out regular upkeep on the compressor, and overhaul the main engine after running for a long time.
Panrui Focus on Power savings
- Technology configuration
- Strike Cost
- Import and ship assistance
Selection and Sizing Considerations
Select filtration and drying to match the ISO 8573 purity class of your use case. Mount drains and inspect them; trapped condensate reintroduces moisture and oil into the air stream. Pre-filters safeguard the dryer, while high-precision after-filters polish the air before use.
Frequently Asked Questions
What is the difference between a pre-filter and an after-filter?
A pre-filter sits before the dryer and removes bulk moisture and coarse particles; an after-filter sits after the dryer and polishes remaining fine impurities.
How do I choose a refrigerated versus an adsorption dryer?
Refrigerated dryers are economical down to about +3°C dew point. Desiccant dryers are needed for lower dew points or critical, oil-free applications.
What root causes high dew point in a refrigerated air dryer?
Overloading, high inlet temperature, a faulty condenser, or a blocked drain can all raise the dew point.
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