振动测点位置对离心泵空化敏感性研究

摘要
图/表
参考文献(23)
相关文章 (15)

全文: PDF (4124 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要振动信号常用于对离心泵内空化现象的检测中。为了更加准确地捕捉离心泵内空化发展状态，并探究空化对离心泵不同位置振动信号的影响，以一台单级离心泵为例，对不同空化阶段的离心泵振动信号进行了研究。通过计算空化初生及离心泵扬程下降3%时各测点振动加速度级变化率，对各测点振动信号对空化的敏感性进行了分析；通过1/3倍频程将振动信号划分为多个频段，分析了不同频段振动信号对空化的敏感性。结果表明：隔舌测点与进口法兰Y测点对离心泵内初生空化及严重空化均表现出了较高的敏感性，可应用于对离心泵内空化现象的研究中；轴承座Z测点与进口法兰Z测点对泵内空化现象的敏感性较低，不适合应用于对空化现象进行研究。
关键词：离心泵；空化；振动分析

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	张宇航1
	董亮1
	宋礼威2

关键词 ：离心泵, 空化, 振动分析

Abstract：Vibration signals are often used to detect cavitation in centrifugal pumps. In order to more accurately capture the development state of cavitation and explore the influence of cavitation on the vibration signals of the centrifugal pump at different positions, a single-stage centrifugal pump was used to study the vibration signals at different cavitation stages. The sensitivity of the vibration signal of each measuring point to cavitation is analyzed by calculating the total vibration level change rate of each measuring point at the incipient cavitation and when the head of the centrifugal pump drops by 3%. The vibration signal is divided into multiple frequency bands through the 1/3 octave spectrum, and the sensitivity of vibration signals in different frequency bands to cavitation is analyzed. The results show that the vibration signals of the casing tongue and the inlet flange Y shows a high sensitivity to the inception cavitation and severe cavitation in the centrifugal pump. These two measuring points are suitable for the study of cavitation in the centrifugal pump. The bearing seat Z measuring point and the inlet flange Z measuring point have the lowest sensitivity to cavitation and is not suitable for the study of cavitation.
Key words: centrifugal pump; cavitation; vibration analysis

Key words： centrifugal pump cavitation vibration analysis

收稿日期: 2021-08-03 出版日期: 2022-10-15

引用本文:

张宇航1，董亮1，宋礼威2. 振动测点位置对离心泵空化敏感性研究[J]. 振动与冲击, 2022, 41(19): 90-97.
ZHANG Yuhang1, DONG Liang1, SONG Liwei2. Sensitivity of vibration measuring point location to cavitation of centrifugal pump. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(19): 90-97.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2022/V41/I19/90

[1] Li S, Wang H, Song L, et al. An adaptive data fusion strategy for fault diagnosis based on the convolutional neural network[J]. Measurement, 2020, 165: 108122.
[2] Sakthivel N R, Nair B B, Sugumaran V. Soft computing approach to fault diagnosis of centrifugal pump[J]. Applied Soft Computing, 2012, 12(5): 1574-1581.
[3] Liu M, Tan L, Liu Y, et al. Large eddy simulation of cavitation vortex interaction and pressure fluctuation around hydrofoil ALE 15[J]. Ocean Engineering, 2018, 163: 264-274.
[4] 张林夫. 空化与空蚀[M]. 南京: 河海大学出版社, 1989.
ZHANG Fu-lin. Cavitation and Damage. Nanjing: Hohai University Press, 1989.
[5] 何彩霞, 张国喜. 空化形成机理及技术应用研究进展[J]. 青海师范大学学报(自然科版), 2015, 31(03): 52-55+59.
HE Cai-xia, ZHANG Guo-xi. Research progress of cavitation in
formation mechanism and technology application [J]. Journal of Qinghai Normal University (Natural Science), 2015, 31(03): 52-55+59.
[6] 徐洪泉, 陆力, 王万鹏等. 空腔危害水力机械稳定性理论Ⅰ-空腔及涡旋流[J]. 水力发电报, 2012, 31(06): 249-252+108.
XU Hong-quan, LU Li, WANG Wan-peng, et al, Theory of cavitation bubbles conglomeration endangering stability of hydraulic machinery.Ⅰ. Cavitation bubbles conglomeration and vortex flow[J]. Journal of Hydroelectric Engineering, 2012, 31(06): 249-252+108.
[7] Cao R, Yuan J. Selection Strategy of Vibration Feature Target under Centrifugal Pumps Cavitation[J]. Applied Sciences, 2020, 10(22): 8190.
[8] Gonçalves J P S, Fruett F, Dalfré Filho J G, et al. Faults detection and classification in a centrifugal pump from vibration data using markov parameters[J]. Mechanical Systems and Signal Processing, 2021, 158: 107694.
[9] Mousmoulis G, Karlsen-Davies N, Aggidis G, et al. Experimental analysis of cavitation in a centrifugal pump using acoustic emission, vibration measurements and flow visualization[J]. European Journal of Mechanics-B/Fluids, 2019, 75: 300-311.
[10] 高波, 杨敏官, 李忠, 等. 空化流动诱导离心泵低频振动的实验研究[J]. 工程热物理学报, 2012, 33(06): 965-968.
GAO Bo, YANG Min-guan, LI Zhong, et al. Experiment Study on Cavitation Induced Low Frequency Vibration in a Centrifugal Pump [J]. Journal of Engineering Thermophysics, 2012, 33(06): 965-968.
[11] 蒲道林. 空化诱发离心泵振动特性的试验研究[J].水泵技术,2015(03):6-8.
PU Daolin. Experimental Study on Vibration Characteristics of Centrifugal Pump Induced by Cavitation [J]. Pump Technology,2015(03):6-8.
[12] 段向阳，王永生，苏永生. 振动分析在离心泵空化监测中的应用[J]. 振动与冲击,2011,30(04):161-165.
DUAN Xiang-yang, Wang Yong-sheng, Su Yong-sheng. Vibration analysis applied in cavitation monitoring of a centrifugal pump [J]. Journal of Vibration and Shock, 2011,30(04):161-165.
[13] Zhang N, Yang M, Gao B, et al. Vibration characteristics induced by cavitation in a centrifugal pump with slope volute[J]. Shock and Vibration, 2015, 2015.
[14] 赵宇琪. 离心泵空化判定及其流声特性研究[D]. 江苏大学,2018.
ZHAO Yu-qi. Research on cavitation diagnosis and its characteristics of flow filed and acoustic filed in centrifugal pump[D].Jiangsu University, 2018.
[15] Wu K L, Xing Y, Chu N, et al. A carrier wave extraction method for cavitation characterization based on time synchronous average and time-frequency analysis - ScienceDirect[J]. Journal of Sound and Vibration, 2020, 489.
[16] Dong L, Zhzo Y Q, Dai C. Detection of inception cavitation in centrifugal pump by fluid-borne noise diagnostic[J]. Shock and Vibration, 2019, 2019.
[17] Sun W, Tan L. Cavitation-Vortex-Pressure fluctuation interaction in a centrifugal pump using bubble rotation modified cavitation model under partial load[J]. Journal of Fluids Engineering, 2020, 142(5).
[18] Lu, J., Yuan, S., Siva, P. et al. The characteristics investigation under the unsteady cavitation condition in a centrifugal pump. J Mech Sci Technol 31, 1213–1222 (2017).
[19] Lu J X, Yuan S Q, Li X J, et al. Research on the characteristics of quasi-steady cavitation in a centrifugal pump[C]. IOP Conference Series: Materials Science and Engineering. IOP Publishing, 2015, 72(3): 032017.
[20] 蒋通. 环境振动实测和分析中考虑多振源影响的振动加速度级评价方法[J]. 城市轨道交通研究,2010,13(05):26-29.
JIANG Tong. Vibration Level Evaluation of the Environmental Vibration Affected by Multi-vibration Sources[J].
[21] Lu J, Yuan S, Parameswaran S, et al. Investigation on the vibration and flow instabilities induced by cavitation in a centrifugal pump[J]. Advances in Mechanical Engineering, 2017, 9(4): 1687814017696225.
[22] GB/T 3241—2010. 电声学倍频程和分数倍频程滤波器[S]. 北京: 国家标准出版社, 2010.
[23] 吕江，赵晖，姚康，等. 隧洞爆破引起路堑高边坡振动的1/3倍频程实测分析[J].浙江工业大学学报,2021,49(03):282-289.
LV Jiang, Zhao Hui, Yao Kang, et al. In-situ measurement and 1/3 octave analysis on vibrations of high cutting slope caused by tunnel blasting excavation[J]. Journal of Zhejiang University of Technology,2021,49(03):282-289.