Large Air Dryer

This is a professional equipment designed for large-scale industrial production and high requirements for air drying. It aims to efficiently remove moisture from compressed air and provide stable and pure air for various equipment and process flows that rely on dry air sources.

Our Products Have Passed Various Certifications

 

1.Food and beverage processing: In aseptic filling systems and pneumatic conveying, dry compressed air is used to drive filling machinery, purge packaging containers and directly contact raw materials (such as milk powder and coffee powder). For example, in liquid milk production lines, excessive humidity in the air can cause powdered additives to agglomerate, microorganisms to grow in pipelines, and even cause the HACCP system certification to fail.

2.Lithium-ion battery manufacturing: The electrode coating process requires the compressed air dew point to be stable below -70°C. Residual moisture can cause NMP solvent to hydrolyze to produce methylamine, causing the electrode slurry to gel; in the vacuum drying furnace air lock device, humid air may cause capillary collapse of the uncured diaphragm.

3.Semiconductor lithography process: The clean room air flotation platform needs to continuously supply ISO 8573-1 Class 1 dry air (dew point -70°C, oil content ≤0.01mg/m³). Taking the EUV lithography machine as an example, a 0.1% fluctuation in ambient humidity will cause a 0.3nm level deformation of the wafer table flatness, which directly affects the overlay accuracy of the 7nm process.

4.Industrial spraying automation: The automotive electrophoretic coating line requires the compressed air dew point to be 15°C lower than the coating curing temperature. Moisture can cause "tear marks" defects in the cathode electrophoretic paint film. For example, in the spraying of aluminum alloy wheels, each ppm of residual moisture can reduce the paint adhesion by 12%.

1. Clean the condenser and cooling system regularly
Operation content: Check the condenser fins every month, use compressed air or a soft brush to remove dust and oil on the surface to ensure cooling efficiency. The cleaning cycle needs to be shortened in high temperature environments or dusty places.
Importance: Dust accumulation will lead to reduced heat exchange efficiency, increased load on the refrigeration system, and may cause high temperature alarms or equipment shutdowns.
2. Drainage system maintenance
Automatic drain valve inspection: Test the drain valve function every week, and manually trigger drainage (according to the equipment manual) to avoid condensate accumulation leading to bacterial growth or pipe corrosion.
Water filter cleaning: Disassemble the drainage line filter every quarter to remove impurities to prevent blockage from affecting drainage efficiency.
3. Monitor operating parameters and alarm system
Temperature and pressure monitoring: Record the evaporation temperature (normal range 2-5℃) and compressor exhaust pressure daily. Abnormal fluctuations may indicate refrigerant leakage or system failure.
Alarm response: If "tALLow" (low temperature alarm) or "FIL" (filter replacement prompt) appears, immediately shut down for inspection and refer to the equipment manual to reset or replace parts.
4. Filter system maintenance
Pre-filter replacement: Replace the pre-particle filter every 3-6 months (adjust the cycle according to air quality) to protect the internal components of the dryer from oil and particulate matter.
Activated carbon filter element update: If the equipment contains an oil vapor adsorption module, it needs to be replaced according to the manufacturer's recommended cycle to avoid contamination of dry air after saturation.
5. Annual systematic maintenance
Refrigerant inspection: Check the refrigerant charge every year, observe the bubbles through the sight glass, and professionally add environmentally friendly refrigerants (such as R134a/R410A) in case of leakage.
Electrical system inspection: Check the insulation of the compressor motor, the tightness of the terminal, and calibrate the accuracy of the temperature control sensor.