How often does the air pressure unit patrol?

The inspection cycle of the air compressor unit is usually divided into daily inspection, weekly inspection, monthly inspection and every three months inspection. Some enterprises also formulate a more detailed cycle (such as special maintenance every 2000 hours of operation) according to the operation duration, and flexibly adjust according to the equipment type, use environment and production requirements. Here are the specific instructions:

1. basic inspection cycle

1. daily Patrol Inspection (Inspection per shift)
   • applicable Scenarios: All air compressor units, especially continuous operation equipment.
   • Core content:
     • appearance inspection: Whether the oil, dust and rust on the surface of the equipment, whether the pipeline connection is firm and whether the foundation is loose.
     • Operating parameters: Whether the exhaust pressure, temperature, current/voltage and oil pressure are normal and whether there is abnormal fluctuation.
     • Lubrication system: Whether the oil level is in the normal range and whether the oil quality is clean (no emulsification and impurities).
     • Cooling system: Whether the surface of the cooler is dirty and whether the cooling fan is running abnormally.
     • Drainage system: Whether the automatic drain valve works normally and whether the drain pipe is unblocked.
     • Safety device: Safety valve, pressure switch and emergency shutdown device are sensitive and reliable.
   • Case: A chemical plant did not carry out daily inspection, and cracks in the oil pipe caused high-pressure lubricating oil to splash into the high-temperature exhaust pipe, causing a fire. Post-investigation showed that the oil level change was not recorded for 7 consecutive days, and the pressure gauge fluctuation warning was not processed.
2. Weekly inspection
   • applicable Scenarios: Critical equipment or units with poor operating environment.
   • Core content:
     • unit sound and leakage: Check for abnormal noise, vibration or leakage.
     • Meter reading: Confirm that the display of pressure gauge and thermometer is accurate.
     • Temperature display: Monitor whether the operating temperature of the equipment is normal.
   • Case: An enterprise found that the temperature of the compressor bearing increased abnormally through weekly inspection, and replaced the bearing in time to avoid equipment damage.
3. Monthly inspection
   • applicable Scenarios: All air compressor units.
   • Core content:
     • inspection for corrosion and looseness: Check whether there is rust inside the equipment and whether the parts are loose.
     • Condensate water discharge: Discharge the condensed water in the gas tank and pipeline regularly.
     • Electrical System Check: Whether the cable line is damaged or aged, and whether the electrical components in the control cabinet are overheated.
   • Case during the monthly inspection of a factory, it was found that the motor wiring was loose, and an electrical failure was avoided after fastening.
4. Inspection every three months
   • applicable Scenarios: Stable operation of the unit or non-critical equipment.
   • Core content:
     • cooler cleaning: Remove the dust on the outer surface of the cooler, fan cover and fan blade.
     • Lubrication maintenance: Add lubricating oil to the motor bearing and check whether the hose is aged or broken.
     • Inspection of electrical components: Clean the electric cabinet and check whether the electrical components are normal.
   • Case after an enterprise cleans the cooler every three months, the heat dissipation efficiency of the equipment is increased by 15% and the energy consumption is reduced by 8%.

Special maintenance of 2. combined with running time

1. every 2000 hours of operation
   • core content:
     • cooler internal cleaning: Use a dust blowing air gun or water to flush the heat dissipation surface to ensure that there is no dust blockage.
     • Belt tightness inspection: Adjust the belt tension to prevent wear or scrap due to looseness.
     • vibration analysis: Use a vibration analyzer to detect equipment vibration and identify potential failures.
   • Case: After an enterprise deeply cleans the cooler every 2000 hours, the equipment failure rate drops by 30%.
2. Every 500 hours of operation (first warranty for new machine)
   • applicable Scenarios: Newly purchased air compressor.
   • Core content:
     • lubricating oil replacement: Replace with new oil after 500 hours of first operation, and then replace it according to the normal cycle (every 4000 hours or every year).
     • Oil filter replacement: The first boot 300-500 hours replacement, subsequent replacement every 2000 hours.
   • Case: After an enterprise strictly implements the first warranty of the new machine, the life of the equipment is extended by more than 2 years.

3. basis for flexible adjustment of inspection cycle

1. device Type
   • centrifugal air compressor: It is necessary to focus on monitoring the bearing status, the accuracy of the speed control system and the sealing performance.
   • Screw air compressor: Attention should be paid to the separation effect of oil and gas separator and the wear of screw.
2. Use of the environment
   • humid environment: It is necessary to increase the frequency of condensate discharge to prevent pipeline corrosion.
   • High temperature environment: It is necessary to strengthen the inspection of the cooling system to ensure the heat dissipation effect.
3. production demand
   • continuous production: It is necessary to shorten the inspection cycle to ensure the stable operation of the equipment.
   • intermittent production: The inspection cycle can be appropriately extended to reduce maintenance costs.