Among the core equipment of refrigeration units, screw refrigeration compressors and centrifugal refrigeration compressors are the two most widely used types of models.

To master the inspection and maintenance of mechanical seals, one must first understand the working principle of mechanical seals.

During the operation of the compressor, the piston rings, support rings and piston rod packing rings ensure the sealing performance of the equipment

Equipment lubrication management serves as an "invisible defense line" in industrial production. According to statistics, approximately 80% of rotating equipment failures are directly related to poor lubrication. However, in actual operation and maintenance, problems such as improper selection of lubricating grease, arbitrary filling cycles, and non-standard operations are widespread. These issues, at the very least, increase energy consumption and wear out components; at worst, they can lead to serious accidents such as fires and explosions.

Compressor failures are mainly divided into two categories: mechanical failures and motor failures.