Research on the characteristic of noise and pressure fluctuation in the oil-gas mixing transportation of screw-axial pump

doi:10.1088/1755-1315/240/3/032031

	Research on the characteristic of noise and pressure fluctuation in the oil-gas mixing transportation of screw-axial pump
	Quan, Hui 1,2; Quan, Sizhe 2; Li, Rennian 2; Wang, Xincheng 3; Chai, Xiyu 2; Yuan, Shifang 2; Guo, Jianhui 2
	2019-03-28
会议日期	September 16, 2018 - September 21, 2018
会议地点	Kyoto, Japan
关键词	Acoustic noise Acoustic variables measurement Acoustic wave transmission Acoustics Axial flow Boundary element method Frequency doublers Hydraulic machinery Impellers Liquids Mixing Multiphase flow Petroleum transportation Pumps Sailing vessels Screws Stators Vortex flow Blade passing frequency Characteristic of noise Hydraulic performance Indirect boundary element method Internal unsteady flow Noise characteristic Oil gas mixing transportation Pressure fluctuation
卷号	240
期号	3
DOI	10.1088/1755-1315/240/3/032031
英文摘要	In order to study the spiral gas-liquid mixing loss and noise characteristics of the oil-gas mixing transportation of screw-axial pump, with the oil-gas mixing transportation of screw-axial pump as the research object, based on the RNG k- psilon internal unsteady flow model to simulate the pump parameter change of gas and liquid delivery information, extract the unsteady gas-liquid transfer information parameters and pressure fluctuation signals, using acoustic software LMS Virtual Lab IBEM indirect boundary element method is used to solve the helical axial multiphase mixture pumps in dipole source caused by noise. The distribution law of pressure field, pressure pulsation and sound pressure level in the pump and outlet of the helical axial flow multiphase flow pump is analyzed. The results show that the gas-liquid mixing in the helical-axial-flow oil-gas mixing pump, from impeller inlet to impeller outlet, is aggravated, the pressure increases and the flow is turbulent. From the inlet of the guide vane to the exit of the guide vane, the bubbles gradually move from the hub to the middle of the runner, then the pressure gradually decreases, and the low voltage area leads to the vortex phenomenon; for the internal pressure fluctuation of helical axial flow type oil-gas mixing pump, the pressure gradient in the static and static interference area between the impeller and the guide blade is large, which is an important area affecting hydraulic performance. The pressure pulsation in the cascade is affected by the blade passing frequency and the mutual interference between the rotor and stator blades. The pressure pulsation maximum value is mainly corresponding to the blade frequency and its doubling frequency, and under the interaction of rotor - stator cascade, the pressure pulsation of the monitoring point near the static and static interface is superimposed, and the main frequency is the blade's triple leaf frequency. For screw axial flow noise in the oil-gas mixture pumps, screw axial multiphase flow pump hydrodynamic noise exports more than imports, sound pressure level frequency in low frequency band is evident, for impeller pressure impulses and its frequency doubling, after three times the pressure impulses, sound pressure level decline slows, the distribution of sound pressure level along with the increase of flow rate, shows the tendency of increase after decreases first. The research results are of great theoretical value and practical significance for the unsteady turbulent gas-liquid mixed transport, pressure fluctuation and noise characteristics in the oil-gas mixed transport pump. © 2019 Published under licence by IOP Publishing Ltd.
会议录	IOP Conference Series: Earth and Environmental Science
会议录出版者	Institute of Physics Publishing
语种	英语
ISSN号	17551307
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/118125]
专题	能源与动力工程学院兰州理工大学
作者单位	1.College of Engineering, Nihon University, Koriyama, Fukushima, Japan; 2.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, China; 3.Shandong Changzhi Co. Ltd, Zibo, China
推荐引用方式 GB/T 7714	Quan, Hui,Quan, Sizhe,Li, Rennian,et al. Research on the characteristic of noise and pressure fluctuation in the oil-gas mixing transportation of screw-axial pump[C]. 见:. Kyoto, Japan. September 16, 2018 - September 21, 2018.