A Way To Detect Cavitation Phenomenon
(0) Cavitation phenomenon will result in one of the sources of instability in a centrifugal pump. Cavitation within a centrifugal pump can cause more undesirable effects, such as deterioration of the hydraulic performance (drop in head-capacity and efficiency curves), damage of the pump by pitting and erosion and structure vibration and resulting noise. Cavitation can appear within the entire range of operating conditions; therefore it must, by all means, be prevented. To prevent the onset of the cavitation, we have to know the beginning of cavitation phenomenon in the pump. To detect the beginning of the cavitation process, the emitted noise can also be used, among other possibilities. Experiments have shown that there is a discrete frequency tone within the audible noise spectra, at 147 Hz or BPF/2, which is strongly dependent on the cavitation process and its development. Therefore, the discrete frequency tone at 147 Hz was separated from the noise spectra of cavitating pumps and then used to detect the incipient of cavitation and its development.
Centrifugal Pump Cavitation noise Detection
GUO Huaping CONG Zhefa LI Ning
College of Mechanical Engineering (Xian jiaotong university), Xian, Shaanxi, China,710049 Wuhan Or College of Mechanical Engineering (Xian jiaotong university), Xian, Shaanxi, China,710049 Wuhan Ordnance Noncommissioned Officer Academy, Hubei, Wuhan, China,430075
国际会议
第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)
重庆
英文
1687-1690
2009-08-01（万方平台首次上网日期，不代表论文的发表时间）