What are the reasons for the performance degradation of the compressor unit driven by the steam turbine

What are the reasons for the performance degradation of the compressor unit driven by the steam turbine

1. The seal between compressor stages is seriously damaged, the sealing performance is reduced, and the internal return flow of the gas medium increases.

　　2. The impeller is severely worn, the function of the rotor is reduced, and the gas medium cannot get enough kinetic energy.

　　3. The steam filter of the steam turbine is blocked, the steam flow is blocked, the flow is small, and the pressure difference is large, which affects the output power of the steam turbine and reduces the performance of the unit.

　　4. The vacuum degree is lower than the index requirement, and the exhaust gas of the steam turbine is blocked.

　　 5. The steam temperature and pressure parameters are lower than the operating indicators, and the internal energy of the steam is low, which cannot meet the production and operation requirements of the unit.

　　 6. Surge conditions occur.