Preliminary inspection method for failure shutdown of screw air compressor

Screw air compressors are increasingly used in all walks of life. Companies are always looking for better air compressors, hoping to purchase air compressor products with efficiency, fewer failures, and lower maintenance rates.

Preliminary inspection method for screw air compressor failure and shutdown:

Current overload shutdown

The blockage of the rotor of the screw air compressor will affect the start of the air compressor, resulting in inflexible movement of the head, and the head should be replaced in time to avoid greater failure. If the internal pressure of the screw air compressor unit is too high, the small pressure valve and the solenoid valve will malfunction, which will cause the current to be overloaded and cause a shutdown.

Random shutdown after startup

The blockage of the small pressure valve of the screw air compressor will cause the small pressure valve to be unable to clock or difficult to clock, the exhaust pressure will increase, the internal pressure of the oil barrel will increase, the motor load will increase, and the air compressor will stop.

Knowing the cause of the failure in advance, and troubleshooting in time when the failure is discovered, can ensure the normal operation of the screw air compressor, avoid accidents, and ensure normal production.

Screw air compressors have gradually replaced piston type air compressors due to their high reliability and stable work (explanation: stable and stable; no changes) and other advantages (explanation: can overwhelm the other side's favorable situation) and gradually replaced the piston type air compressor, occupying the current air compressor Most of the market for the machine. The permanent magnet variable frequency air compressor is energy-saving and environmentally friendly, the equipment is in place, and it can be used immediately. No special installation foundation is required for any permanent magnet variable frequency air compressor unit. The low-speed fan and modern vibration isolation and noise reduction measures make the noise of the compressor very low during operation, so it is convenient for users to place it on the production site, as long as the equipment is in place , Fast pipeline connection, can be shipped immediately. Screw air compressor is divided into single screw air compressor and twin screw air compressor, but the structure of twin screw is more reasonable and stable, so it is more popular. When using screw air compressors, users need to pay attention to the following four points:

1. Rotation speed of screw air compressor

For screw air compressors, the speed is a very important parameter. If the speed is too high, the load of the rotor is too large, the speed is too low, and the exhaust pressure is insufficient. Therefore, it is necessary to control the speed in a reasonable range;

2. Working temperature of screw air compressor (temperature)

Lubricating oil is greatly affected by temperature. If the temperature is too high, the lubricating oil may deteriorate and cannot provide lubrication; if the temperature is too low, the lubricating oil It may be solidification. Permanent magnet variable frequency air compressor variable frequency screw air compressor compressor displacement can be combined with the user's air consumption, completely avoiding the loss of unloading power; in the state of intermittent air use, through the zero load effect of soft start , Avoiding the peak current and torque, so the unit can start and stop unlimited times. When choosing lubricating oil, it is necessary to choose lubricating oil with suitable viscosity and high lightning.

3. Lubrication method of screw air compressor

There are oil and oil-free screw air compressors, but most factories still use oil screw air compressors, and the compressed air can also meet the requirements of factory production (Produce). The compressed air of the oil-free screw air compressor is completely free of air compressor oil, which meets the requirements of high-quality compressed air in industries such as medicine, food, and precision instruments (appliance).

4. The use environment of the air compressor

The efficiency of the air compressor is greatly affected by the environment. If the air humidity is too high or there are more impurities in the air, the efficiency of the air compressor compressed air will be reduced (reduce). Permanent magnet variable frequency air compressor variable frequency screw air compressor compressor displacement can be combined with the user's air consumption, completely avoiding the loss of unloading power; in the state of intermittent air use, through the zero load effect of soft start , Avoiding the peak current and torque, so the unit can start and stop unlimited times. Therefore, the air compressor should be placed in an environment with good ventilation, suitable temperature and good air quality.