Key Precautions Before Operating a Screw Type Air Compressor

Screw type air compressors are essential for various industrial applications, and proper operation ensures both efficiency and safety. Before starting a screw air compressor, it’s crucial to follow these steps to avoid equipment damage and ensure smooth performance.

1. Pre-Operation Checklist for Screw Type Air Compressors

a. Lubrication Check

Ensure the lubricating oil in the oil reservoir is within the recommended range. Before starting, check the oiler to confirm the oil level is above the minimum mark.

b. Inspect Moving Parts

Verify that all moving parts operate smoothly and all connections are secure. Ensure the lubrication system is functioning correctly, and check the motor and electrical controls for reliability.

c. Safety Devices and Accessories

Examine all protective devices and safety accessories to confirm they are intact and functioning.

d. Clear the Exhaust Pipe

Ensure the exhaust pipe is unobstructed for optimal airflow.

e. Cooling System

Connect the water source and open all water inlet valves to ensure a steady flow of cooling water.

2. First-Time or Long-Term Disuse Startup Tips

For Screw type air compressors that have been idle for an extended period, follow these steps for a safe startup:

• Inspect for Damage: Before switching on, inspect the wheel for any signs of collision, jamming, or abnormal sounds.
• No-Load Startup: Always start the compressor without a load. Once the no-load operation runs smoothly, gradually introduce the load.

3. Monitoring DuringScrew Type Air Compressors

Operation

While the compressor is running, pay close attention to the following:

• Instrument Readings: Regularly check and adjust instrument readings as necessary.
• Motor Temperature: Monitor the motor’s temperature and ensure all readings remain within the specified range.
• Machine Sounds: Listen for any unusual noises during operation.
• Valve and Suction Cover: Check the suction valve cover for overheating and ensure the valve’s operation sounds normal.
• Safety Equipment: Confirm that all safety equipment is reliable and functioning properly.

4. Regular Maintenance During Operation

After every two hours of operation, discharge the oil and water from the oil-water separator, intercooler, and aftercooler. Also, discharge the oil and water from the air storage barrel at least once per shift.

5. Immediate Shutdown Conditions

Stop the screw air compressor immediately if any of the following issues occur:

• Oil or Cooling Water Failure: If lubricating oil or cooling water is interrupted, shut down the compressor to prevent damage.
• Sudden Water Temperature Changes: If the water temperature rises or falls unexpectedly, stop the machine.
• Exhaust Pressure Spike: A sudden increase in exhaust pressure or a safety valve failure requires immediate shutdown to prevent accidents.

By following these essential steps, you can ensure the safe and efficient operation of your screw air compressor, prolonging its lifespan and maintaining peak performance.