Screw air compressors are crucial in industrial production, ensuring efficiency and product quality. However, oil leakage in the main engine can waste resources, damage equipment, and compromise safety. Addressing oil leaks promptly is essential. This article discusses the causes of oil leakage and how to address them effectively.

1. Causes of Oil Leakage

Common causes of oil leakage include:

• Aging or Worn Seals: Gaskets and sealing rings can lose their effectiveness over time, leading to leaks.
• Oil System Blockage: Accumulation of impurities and dirt can block the oil system, disrupting oil flow and causing leaks.
• Improper Oil Level Control: Overfilling or faulty oil level gauges can cause oil overflow.
• Assembly Issues: Poor assembly, such as uneven bolt tightening or unlevel sealing surfaces, can lead to leaks.
• System Failures: Issues like malfunctioning pressure valves, damaged check valves, or poorly designed oil-gas separation tanks can increase oil consumption and leakage risk.
• External Factors: Factors like overly tight belts causing bearing wear, loose main shafts, defective oil seals, or joint surface leaks also contribute to oil leakage.

2. Treatment Methods

To address these issues, consider the following measures:

• Regular Seal Inspection:
  • Check and replace aged or worn seals, including gaskets and sealing rings.
  • Inspect for scratches or defects on the joint surfaces and replace if necessary.
• Clean the Oil System:
  • Regularly clean the oil system using specialized cleaners to remove impurities and dirt, ensuring smooth oil flow.
• Control the Oil Level:
  • Follow proper refueling guidelines to avoid overfilling.
  • Regularly check the oil level gauge for accuracy and repair or replace it if faulty.
• Enhance Assembly Quality:
  • Follow strict assembly procedures, ensuring flat sealing surfaces and even bolt tightening.
  • Thoroughly inspect the equipment post-assembly to confirm no oil leaks.
• System Maintenance and Upgrades:
  • Regular maintenance, such as changing lubricants and cleaning filters, enhances equipment reliability.
  • Repair or replace faulty components like pressure valves and check valves.
  • Improve oil-gas separation tank design to optimize separation and reduce leaks.
• Adopt New Technologies:
  • Use intelligent monitoring and remote control technologies to monitor the equipment’s status, detect issues early, and improve maintenance efficiency.
• Establish an Emergency Plan:
  • Develop a plan for handling oil leaks, including fault handling procedures, necessary tools and materials, and safety precautions.
• Training and Awareness Improvement:
  • Train operators to enhance their awareness and response to oil leaks.
  • Foster a culture of equipment maintenance among all employees.

3. Summary

Addressing oil leakage in screw air compressor engines requires a multi-faceted approach. Regular inspection of seals, cleaning the oil system, controlling oil levels, ensuring high assembly quality, maintaining and upgrading systems, adopting new technologies, having an emergency plan, and improving training and awareness can effectively prevent and manage oil leaks. Regular maintenance is crucial for preventing equipment faults and ensuring smooth operation.

Maintenance methods for screw air compressors