Application of Swirl Brake in Pipeline Compressor System

Abstract:

According to level I and level II stability analysis of the API617 (7^th edition), the stability of a natural gas pipeline compressor system is studied. It is found that the rotor bearing system is unstable. Therefore, adding swirl brake on the system is to improve the damping characteristics. The stability of the unit can meet the requirement of API617 dynamic design. The research demonstrates that the stability of compressor system is not solely determined by the rotor system, but the stator system is also an important factor. In particular, the swirl brake on the diaphragm can reduce the cross coupling stiffness generated by the seal, and it is significant to improve the stability of the compressor system.

• Periodical: Applied Mechanics and Materials (Volume 872)
• Pages: 185-191
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.872.185
• Online since: October 2017
• Authors: Lei Yang, Xiao Long Zhang
• Keywords: Damping, Dynamic, Stability, Stiffness, Swirl Brake

References

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