Air compressor overhaul time

As the service life of the air compressor increases, it will more or less need to be repaired due to problems caused by some small parts. Such as host bearing wear, screw displacement and so on. With the wear and tear of the camera of the major components of the unit, when the life of the main engine bearing is close to the maximum allowable time limit, it is not far from overhaul.

When the life of the air compressor main engine bearing gradually tends to the maximum allowable time limit, the axial and radial movement of the screw gradually tends to the maximum design allowable value. The gap between the end faces changes greatly.

Although the operation of the mainframe is still safe at this time, it is time to consider planning and arranging major repairs to the mainframe. Because once the running time of the unit exceeds the overhaul period, the bearing wear and the matching clearance of the main engine have reached the limit value allowed by the technical conditions of the main engine. At this time, the main engine is in an unsafe operating state, and the following serious consequences may occur at any time:

1. The increase in the operating load of the main engine will cause harm to the main motor and electrical system

The strong friction that may occur between the screws of the main engine, between the screw and the front and rear end faces, and between the screw and the shell of the main engine will increase the operating load of the main engine sharply, and the operating load of the severely worn bearing is also very large. As a result, the motor will be in an overloaded working state, which will seriously endanger the safe operation of the motor. If the situation is serious, if the electrical protection device of the air compressor unit is insensitive or fails, it may also cause the motor to burn out.

2. The exhaust volume of the air compressor will be greatly attenuated.

The increase of the matching clearance of the main engine will lead to a serious decrease in the efficiency of the main engine, that is, the air compressor exhaust volume will have a large attenuation, which will have a certain impact on the normal production of the gas-consuming unit. Especially for those users who have a relatively small air compressor displacement configuration, due to the attenuation of the air compressor displacement, when the gas consumption of the gas system is relatively stable, the compressed air pressure of the pipeline network will drop a lot. It may happen that the gas system equipment cannot work normally or at all, which will affect the normal production of the unit or cause temporary suspension of production, which will bring losses to the enterprise.

The most serious consequence is the sudden “locking” of the host.

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