|
|
|
| Analysis of Transient Cavitation Flow and Pressure Pulsation of Guide Vane Centrifugal Pump |
| WANG Hao1,LI Lin-wei2,MOU Cheng-qi3,ZHOU Pei-jian1,WU Deng-hao1 |
1. School of Metrology and Testing Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China
2. Huadian Electric Power Research Institute Co., Ltd., Hangzhou, Zhejiang 310030, China
3. Institute of Process Equipment, Zhejiang University, Hangzhou, Zhejiang 310027, China |
|
|
|
|
Abstract The RNG k-ε turbulence model and the Zwart-Gerber-Belamri cavitation model are used to numerically simulate a guide vane centrifugal pump, and the internal pressure pulsation spectrum curve is obtained. The results show that the pressure pulsation peak-to-peak value of the impeller monitoring point gradually decreases along the flow direction, and the main frequency is 8 times the rotation frequency and its multiplication frequency. With the intensification of cavitation, the peak-to-peak value of impeller pressure pulsation gradually decreases. The main frequencies of the pressure pulsation of the forward and reverse guide vanes are both the vane frequency and its multiplier, and the amplitude increases with the development of cavitation. The cavitation in the axial direction shows that the cavitation volume fraction gradually increases from the front cover plate to the rear cover plate of the impeller. The dynamic and static interference between the impeller and the positive guide vane causes periodic changes of the flow field in the impeller, resulting in periodic fluctuations in the pressure pulsation.
|
|
Received: 14 April 2022
Published: 25 June 2023
|
|
|
|
|
|
| ［3］ |
牟介刚, 章子成, 谷云庆, 等. 圆形非光滑表面叶片对离心泵空化特性的影响［J］. 上海交通大学学报, 2020, 54(6):577-583.
|
| ［8］ |
程立, 夏新涛, 马文锁. 滚动轴承的振动性能退化过程与保持可靠性研究［J］. 计量学报, 2021, 42(10):1307-1315.
|
| ［9］ |
俞田宝. 蜗壳式离心泵水力性能优化及压力脉动分析［D］. 镇江:江苏大学, 2020.
|
| ［10］ |
徐磊, 陈二云, 李国平, 等. 两级离心泵瞬态空化流动及压力脉动特性［J］. 工程热物理学报, 2016, 37(11): 2355-2361.
|
| ［11］ |
郭嘉, 陶仁和, 翟璐璐, 等. 低比转速离心泵动静干涉压力脉动特性研究［J］. 化工设备与管道, 2021, 58(3): 62-67.
|
| ［16］ |
田立勇, 张一辙. 基于局部均值分解与快速独立成分分析的潜水泵故障诊断［J］. 计量学报, 2020, 41(5):585-591.
|
| ［17］ |
张凯, 王利英, 张晓华, 等. 不同湍流模型在水泵水轮机内的适用性比较［J］. 水力发电, 2021, 47(4):94-96+101.
|
|
Jiang D H, Zhou P J, Wang L, et al. Study on optimization method of two-blade sewage pump impellers based on response surface model［J］. Journal of Hydroelectric Engineering, 2021, 40(11):72-82.
|
|
Mou J G, Zhang Z C, Gu Y Q, et al. Effect of Circular Non-smooth Surface Blades on Cavitation Characteristics of Centrifugal Pump［J］. Journal of Shanghai Jiaotong University, 2020, 54(6): 577-583.
|
|
Wang X G, Zhang L X, Huang Z C, et al. Erosion and Corrosion Defect Influence on Flow Velocity in Pipeline Using Ultrasonic Measurement［J］. Acta Metrologica Sinica, 2021, 42(12):1611-1619.
|
|
Lin P, Xiang L Q, Hu D, et al. Effect of cavitation on pressure pulsation characteristics of an axial-flow pump under sand conditions［J］. Journal of Vibration and Shock, 2021, 40(18):140-147.
|
| ［12］ |
黄思, 管俊. 基于空化模型的多级离心泵汽蚀性能分析［J］. 流体机械, 2011, 39(1):29-31+28.
|
| ［14］ |
Lei T, Shan Z B, Liang C S, et al. Numerical simulation of unsteady cavitation flow in a centrifugal pump at off-design conditions ［J］. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of mechanical engineering science, 2014, 228(11):1994-2006.
|
|
Wu K L, Qian Q, Xing Y, et al. Research on Cavitation Characterization of Centrifugal Pumps Based on Time-frequency Analysis［J］. Journal of Engineering Thermophysics, 2021, 42(1): 106-114.
|
| ［18］ |
张树生, 吴大转. 离心泵快速启动过程瞬态性能测试系统的研制［J］.计量学报, 2005, 26(2):159-162.
|
|
Zheng X B, Liu L L, Guo P C, et al. Numerical investigation of three-dimensional cavitating performance of NACA66 hydrofoil base on different cavitation models［J］. Hydrodynamic Research and Progress(Series A), 2018, 33(2): 199- 206.
|
| ［2］ |
Micha P T, Sathish B R, Vinoth Kumar M, et al. Numerical Simulation Of Hydrodynamic Cavitation in Centrifugal Pump［J］. International Journal of Innovative Technology and Exploring Engineering, 2019, 8(11):2689-2693.
|
| ［6］ |
Meng G Q Q G,Yan X F,Wang X. Numerical simulation on cavitation pressure fluctuation in centrifugal pump at low flow rate［J］. IOP Conference Series: Earth and Environmental Science, 2018, 163:012024.
|
|
Cheng L, Xia X T, Ma W S. Research on Degradation Process and Continuity Reliability of Rolling Bearing Vibration Performance［J］. Acta Metrologica Sinica, 2021, 42(10):1307-1315.
|
|
Huang S, Guan J. Analysis on Cavitation Performance in Multi-stage Centrifugal Pump Based on Cavitation Model［J］. Fluid Machinery, 2011, 39(1): 29-31+28.
|
| ［15］ |
伍柯霖, 钱全, 邢允, 等. 基于时频分析的离心泵空化状态表征研究［J］. 工程热物理学报, 2021, 42(1):106-114.
|
| ［1］ |
蒋登辉, 周佩剑, 王磊, 等. 基于响应曲面法的双叶片污水泵叶轮优化分析［J］. 水力发电学报, 2021, 40(11):72-82.
|
| ［4］ |
王兴国, 张路鑫, 黄志诚, 等. 管道冲刷腐蚀缺陷对超声测量流体速度的影响［J］. 计量学报, 2021, 42(12): 1611-1619.
|
| ［5］ |
林鹏, 向林嵚, 胡东, 等. 含沙空化对轴流泵内压力脉动特性的影响［J］. 振动与冲击, 2021, 40(18): 140-147.
|
| ［7］ |
Wang W T,Lu H,Meng G Q Q G. Pressure fluctuation characteristics induced by cavitation in a centrifugal pump ［J］. IOP Conference Series: Earth and Environmental Science, 2018, 163:012040.
|
|
Xu L, Chen E Y, Li G P, et al. Characteristics of Transient Cavitation Flow and Pressure Fluctuation in a Two Stage Centrifugal Pump［J］. Journal of Engineering Thermophysics, 2016, 37(11): 2355-2361.
|
|
Guo J, Tao R H, Zhai L L, et al. Study of Pressure Fluctuation Due to Dynamic-static Interference in Low Specific Speed Centrifugal Pump［J］. Chemical Equipment and Piping, 2021, 58(3):62-67.
|
| ［13］ |
Lu J X, Yuan S Q, Luo Y, et al. Numerical and experimental investigation on the development of cavitation in a centrifugal pump［J］. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2016, 230(3): 171-182.
|
|
Tian L Y, Zhang Y Z. Fault Diagnosis of Submersible Pumps Based on Local Mean Decomposition and Fast Independent Component Analysis［J］.Acta Metrologica Sinica, 2020, 41(5):585-591.
|
|
Zhang K, Wang L Y, Zhang X H, et al. Applicability Comparison of Different Turbulence Models in Pump-turbines［J］. Water Power, 2021, 47(4): 94-96+101.
|
|
Zhang S S, Wu D Z. Development of Transient Characteristic Test System of Centrifugal Pump［J］. Acta Metrologica Sinica, 2005, 26(2):159-162.
|
| ［19］ |
郑小波, 刘莉莉, 郭鹏程, 等. 基于不同空化模型NACA66水翼三维空化特性数值研究［J］. 水动力学研究与进展(A辑), 2018, 33(2): 199-206.
|
|
|
|
2023, Vol. 44 
