Symptoms of screw air compressor failure
All kinds of screw air compressors have various signs before failure, and provide reference for screw air compressor users to judge equipment failure and maintenance in advance.
- Abnormal noise and abnormal vibration The abnormal sound that occurs during operation is the “alarm” of equipment failure. Severe vibrations during operation. The reason for the abnormal noise of the screw air compressor may be that the bearing of the main engine is worn, the shaft is unbalanced, and the male and female rotors are damaged. The load of the main engine is heavy, and the pressure of the rolling or pipe network is not balanced. Bolts, nuts, washers and mounting brackets are loose. Inside the device, debris and foreign objects fall into the device. This is also possible since the compressor unit is approaching an overhaul period. At this time, the axial and radial turbulent flow of the screw tends to the design allowable value gradually. This leads to a large change in the gap between the screw and the screw, between the screw and the main body shell, and between the front and rear ends, causing frictional vibration and various sounds.
- Leakage during operation Equipment leakage of lubricating oil. Leakage occurs in compressed air, etc. Sometimes the sound of air leakage and cooling water leakage can be clearly heard. The main reason for leakage is that the equipment and accessories are not aged or maintained, especially due to poor behavior or inadvertent operation of employees. These seemingly small problems can have serious consequences, even if they hide behind all kinds of façades. Taking compressed air as an example, leakage not only directly wastes expensive electric energy, but also causes an electrical burden, and may also lead to a drop in system pressure, thereby reducing the functional efficiency of pneumatic equipment and shortening the service life of the equipment. At the same time, air leaks can cause the equipment to cycle more frequently, increasing the run time of the air compressor, which leads to additional maintenance requirements and can increase unplanned downtime. In short, compressed air leaks add unnecessary compressor capacity. Leakage, combined with the common problem of exceeding the required system operating pressure, invites so-called “bad requests” that make the compressor loaded and innocent.
- Special smell When the motor is overheated and the lubricating oil is extinguished, it will emit a special smell. When the circuit is short-circuited, the insulating material such as the ground wire is burned, and there is a burnt smell. Materials such as rubber give off an unpleasant smell. The appearance of compressor failure is usually not a sudden appearance, but some kind of omen, sometimes with various visions, and sometimes with numerical values on the instrument. Therefore, we must be alert to the omens of various failures, and assist operators and maintenance personnel to detect signs of accidents early and avoid accidents.
Sollant Group-Professional Compressed Gas Solutions Provider