1. Failure of the Host Core Components
rotor wear / seizure
The problem is that the unit has abnormal sound, severe vibration, sudden drop of exhaust volume, and even direct shutdown in serious cases, and the rotor surface has scratches and the meshing clearance is too large.
Common causes: insufficient material hardness of the rotor, low assembly accuracy; inadequate or degraded lubricating oil; oil filter clogging leading to poor oil supply.
terms of settlement
Select high-hardness alloy material for the rotor to ensure the assembly clearance meets the original manufacturer's standards.
Replace with appropriate special lubricating oil regularly according to operating conditions, and avoid mixing different oil types.
Clean or replace the oil filter regularly to prevent contaminants from entering the main lubrication system.
bearing failure
Problem symptoms: The host emits abnormal 'buzzing' or 'clicking' noises during operation, with excessive temperature rise in the bearing area, which may subsequently cause rotor eccentricity.
Common causes: low-grade bearings, poor lubrication; excessive coaxiality error during installation; vibration transmission from the unit damaging the bearings.
2. Air quality compression fails to meet standards
incomplete oil-gas separation (excessive oil content)
Problem description: Oil contamination appears on terminal gas equipment (spray gun, cylinder), with excessive oil core pressure differential and abnormal increase in lubricating oil consumption.
Common causes: poor material quality of the oil separator core, insufficient filtration precision; aging and clogging of the oil separator core; blockage of the return oil pipe or failure of the return oil check valve.
terms of settlement
Replace the oil separator core with high-precision glass fiber material to match the rated gas processing capacity of the model.
Replace the oil separator core promptly when the pressure differential reaches 0.08MPa, and clean the return oil pipe regularly.
Check the seal of the return oil check valve to prevent compressed air backflow.
High moisture and dust content in compressed air
Problem manifestations: Corrosion of terminal pipelines, moisture-induced damage to gas-consuming products; rapid clogging of filter cartridges, leading to increased equipment failure rates.
Common causes: Cold dryer/absorber not activated or malfunction; failure to promptly drain condensate from the air receiver; insufficient precision of the pre-filter.
terms of settlement
Ensure the cold dryer/absorber operates in tandem with the air compressor, and perform regular maintenance on the refrigerant and heat exchange coils.
Install an automatic drain, or manually drain the condensate from the gas storage tank and pipelines at scheduled intervals daily.
Configure a multi-stage filtration system (coarse filter + fine filter + activated carbon filter) to meet the precision requirements of end-use gas applications, such as 0.01μm precision in the food industry.
