Experimental analysis on the characteristics of the transient rotational speed of centrifugal pumps

被引：0
|
作者：
Guo Y. [1 ]
Yuan S. [1 ]
Luo Y. [1 ]
Sun H. [1 ]
Yin J. [1 ]
机构：
[1] Department of Bridge Engineering, Southwest Jiaotong University, Chengdu
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2018年 / 37卷 / 10期
关键词：
Centrifugal pump; Experimental investigation; Rotational speed fluctuation; Transient rotational speed;
D O I：
10.13465/j.cnki.jvs.2018.10.027
中图分类号：
TH3 [泵];
学科分类号：
080704 ;
摘要：
The characteristics of the transient rotational speed of centrifugal pumps are of great significance for pump state recognition as it is closely related to the internal flow and the state of operating centrifugal pumps. In order to investigate the characteristics of the transient rotational speed of centrifugal pumps, the transient speed of a single-stage single-suction centrifugal pump (type IS-65-50-160) was measured precisely by an encoder with the utilization of virtual instrument technology. Furthermore, a time-frequency characteristic spectrum of the transient rotating speed under different operation conditions was established and analyzed. The results show that the speed of the centrifugal pumps decreases turbulently with the increasing of flow rate. Under design conditions, the speed also fluctuate by about 20 r/min. In addition, the fluctuation is periodic and the rotating frequency of the impeller plays a dominant role in the speed fluctuation under both design and off-design conditions. The RMS of the speed fluctuation and the amplitude of the dominant frequency become higher with the increasing of flow rate. © 2018, Editorial Office of Journal of Vibration and Shock. All right reserved.
引用
收藏
页码：187 / 193
页数：6
相关论文
共 22 条
  • [1] Ma X., Feng Q., Jiang X., Et al., Numerical simulation of unsteady pressure pulsation in multistage centrifugal pump, Journal of Drainage and Irrigation Machinery Engineering, 1, pp. 26-31, (2016)
  • [2] Tero A., Jussi T., Jero A., Et al., Frequency-converter-based hybrid estimation method for the centrifugal pump operational state, IEEE Transactions on Industrial Electronics, 59, 12, pp. 4803-4809, (2012)
  • [3] Mao J., Yuan S., Zhang J., Et al., Analysis of inner flow in low-specific centrifugal pump at conditions near hump, Journal of Drainage and Irrigation Machinery Engineering, 33, 4, pp. 283-289, (2015)
  • [4] Fu Y., Yuan S., Yuan J., Et al., Internal flow characters of centrifugal pump at low flow rates, Journal of Drainage and Irrigation Machinery Engineering, 32, 3, pp. 185-190, (2014)
  • [5] Tan L., Zhu B., Wang Y., Et al., Numerical study on characteristics of unsteady flow in a centrifugal pump volute at partial load condition, Engineering Computations, 32, 6, pp. 1549-1566, (2015)
  • [6] Taukamoto H., Yoneda H., Sagara K., The response of a centrifugal pump to fluctuating rotational speed, Journal of Fluids Engineering, 117, 3, pp. 479-484, (1995)
  • [7] Perovic S., Unsworth P.J., Higham E.H., Fuzzy logic system to detect pump faults from motor current spectraIndustry Applications Conference, 2001, Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE. IEEE, 1, pp. 274-280, (2001)
  • [8] Chudina M., Noise as an indicator of cavitation in a Centrifugal Pump, Acoustical Physics, 49, 4, pp. 463-474, (2003)
  • [9] Ahonen T., Tamminen J., Ahola J., Et al., Novel method for detecting cavitation in centrifugal pump with frequency converter, Insight-Non-Destructive Testing and Condition Monitoring, 53, 8, pp. 439-449, (2011)
  • [10] Clark Joseph B., Guan Y.L., Mccoach R., Et al., An investigational study of minimum rotational pump speed to avoid retrograde flow in three centrifugal blood pumps in a pediatric extracorporeal life support model, Perfusion, 26, 3, pp. 185-190, (2011)
123