Importance of compressed air filters in compressed air systems
The air compressor compresses air into high-pressure gas, but the compressed air discharged directly contains water, oil and particulate impurities. If it is used directly without treatment, it will harm system components, increase maintenance costs, shorten equipment life, and even affect the final product. Therefore, air compressor post-processing equipment is crucial in the compressed air system.
1. Types and functions of post-processing equipment
1. Air storage tank: buffering, cooling, water and oil removal, and pressure stabilization. The air converges in the tank, and the temperature drops to liquefy the water vapor, remove a large amount of water and oil, and store compressed air to achieve pressure stabilization.
2. Filter: removes some liquid water, oil and particles with a diameter greater than 1μm. The pre-filter can purify the compressed air to prevent pipeline impurities from entering the evaporator to affect the efficiency of the cold dryer or damage the evaporator.
3. Dryer: remove water molecules in the compressed air and reduce the water content. The dryness is expressed by dew point. There are two types: refrigeration type and adsorption type. The pressure dew point of the refrigeration type is above 2℃, and the adsorption type is between -20℃ and -70℃. Customers can choose according to their needs.
4. Oil-water separator: Separate and discharge water droplets, oil droplets, impurities, etc., use the principle of coalescence to separate oil and water, the oil is collected by the oil collector, and the water is discharged.
5. Cooler: Cool the compressed air to condense water. Cold dryer or cold dry filter integrated machine can achieve this effect.
2. The importance of post-processing equipment
1. Protect equipment and extend service life
1. Prevent corrosion and wear: Reduce the corrosion, wear and accumulation of moisture, oil and particulate matter in compressed air on equipment, and improve equipment efficiency and life.
2. Reduce failure rate: Reduce equipment failure rate and maintenance costs. For example, drying treatment can prevent solenoid valves, cylinders and other components from malfunctioning due to moisture.
2. Improve product quality
1. Ensure product purity: In food, pharmaceuticals, paint spraying, electronics and other industries, post-processing can ensure the purity of compressed air and the stability of product quality.
2. Avoid production interruptions: Prevent equipment failure or product quality problems caused by compressed air impurities, and ensure production continuity and stability.
3. Protect the environment and reduce pollution
1. Reduce exhaust emissions: For example, compressed air treated by the oil-water separator can be recycled and reused to reduce resource waste.
2. Reduce noise pollution: gas tanks and filters can reduce compressed air flow noise and mechanical noise, and improve the working environment.
4. Save energy and reduce costs
1. Improve energy efficiency: Drying can reduce the resistance of moisture to equipment operation and reduce energy consumption.
2. Reduce maintenance costs: Reduce equipment corrosion, wear and accumulation, extend maintenance cycles, and reduce maintenance costs.
3. Selection and maintenance of post-processing equipment
1. Select equipment according to demand: Different industries have different requirements for compressed air quality. Appropriate equipment should be selected according to actual needs, such as high-precision filters and dryers for the food industry, and equipment that can remove oil and particulate matter for the paint industry.
2. Regular maintenance: including cleaning filters, replacing desiccants, checking oil-water separators, etc., to ensure the normal operation of equipment and extend its service life.
3. Monitor air quality: Regularly use professional instruments to detect indicators such as moisture, oil and particulate matter in compressed air, and promptly detect and deal with problems.
In summary, air compressor post-processing equipment plays an important role in the compressed air system, which can protect equipment, improve product quality, protect the environment, save energy and reduce costs. When selecting and using air compressors, full consideration should be given to post-processing equipment, and maintenance should be strengthened to ensure normal operation and provide support for the production and development of enterprises.