Repair of Bitzer Compressor with 40 kW Power

Compressors are a critical component of refrigeration systems, providing the necessary pressure and circulation of refrigerant. This article describes the repair process of a Bitzer refrigerant compressor with a power of 40 kW. The main tasks included replacing the sliding bearings, replacing the piston group, rewinding the stator of the electric motor, and performing a complete assembly and testing.

Repair Process

1. Diagnostics and Disassembly:

   • The compressor was thoroughly inspected to identify all defects and the degree of component wear.
   • The compressor was fully disassembled to access all internal parts for replacement and repair.

2. Replacement of Sliding Bearings:

   • Worn sliding bearings were removed.
   • New bearings, matching the original specifications, were installed to ensure smooth and reliable operation of the compressor.

3. Replacement of Piston Group:

   • The old piston group was replaced with a new one.
   • This included replacing pistons, piston rings, and cylinders to restore the compressor's full performance.

4. Rewinding the Stator of the Electric Motor:

   • The windings of the motor stator were rewound to restore their electrical and insulation properties.
   • High-quality materials were used, and all technological standards were followed to ensure durability and reliability.

5. Complete Assembly:

   • All compressor components were meticulously assembled, including new seals and sealing materials.
   • Special attention was given to the correct installation and alignment of all parts to prevent future issues.

6. Testing:

   • After assembly, the compressor underwent a series of electrical and mechanical tests.
   • The tests checked for tightness, efficiency, and reliability of the compressor under various loads.
   • All operational parameters of the compressor met factory specifications and standards.

Result

After completing all the repair work and tests, the 40 kW Bitzer compressor was successfully restored and ready for operation. The tests confirmed that the compressor operates efficiently and reliably, meeting the necessary operational parameters.

Conclusion

The repair of the 40 kW Bitzer compressor included the replacement of sliding bearings, the piston group, rewinding the motor stator, as well as complete assembly and testing. Through meticulous adherence to all repair stages and the use of high-quality materials, the compressor was restored to a condition close to new. This ensures its reliable operation and long service life in the refrigeration system.