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Discussion on centrifugal air compressor

 

Centrifugal air compressor is a mechanical device for conveying gas, which is composed of rotor, stator and bearing. Rotor includes main shaft, impeller, coupling, etc., and sometimes shaft sleeve and smooth disc. The stator is composed of shell, interstage seal and shaft end seal, air inlet chamber and volute chamber. Centrifugal air compressor is a kind of turbine air compressor. Its working principle is completely different from that of piston air compressor. It belongs to rotating blade machine.

In view of the increasing operating load of mechanical equipment in the chemical industry, the failure rate of centrifugal air compressor has also increased significantly: 1 Sudden drop in oil pressure 2 The outlet flow rate decreases by 3 Exhaust temperature cooler temperature too high 4 The bearing temperature is too high, the bearing vibration is too large 6, and the cooling effect of the cooler is poor

Routine maintenance of centrifugal air compressor:

Regularly check the functional status of the mechanical system of the air compressor, find hidden dangers through the equipment commissioning method, and handle the operation faults in advance; On the other hand, check and disassemble the main components such as bearings and coolers to determine whether the mechanical parts are worn. Timely supplement lubricating oil to improve system operation efficiency; For some aged compressor equipment, new equipment or components can be replaced when necessary, which is also an effective method to prevent failure.