噪声与振动控制2024，Vol.44Issue(3)：295-300,6.DOI:10.3969/j.issn.1006-1355.2024.03.046
工况对双螺杆混输泵振动特性影响实验
Experiment on the Influence of Operation Conditions on the Vibration Characteristic of a Twin-screw Multiphase Pump
摘要
Abstract
In order to study the influence of operating conditions on the vibration characteristic of the twin-screw multi-phase pump,a multi-channel vibration test system is established to test and analyze the vibration parameters of the pump un-der different inlet gas volume fraction(IGVF),rotational speed and outlet pressure.The results show that at the starting of discharge,the transient opening of the discharge chamber causes the jet flow,and then the jet flow deflects toward the verti-cal direction,which produce pressure pulsation and vibration.This process makes the effective value of vibration accelera-tion in the vertical direction of the multiphase pump higher than that in the horizontal and axial directions.For the IGVF of 7.5%,the effective value of the vibration acceleration is 1.88 times of the pure liquid condition.As the IGVF increases,the effective value of the vibration acceleration decreases.When the IGVF is greater than 20%,the vibration acceleration in-creases continuously with the increase of IGVF.The effective vibration acceleration value in the y-direction at speed of 1 450 r/min is 2.95 times of that at 850 r/min.The effective value of vibration acceleration changes little with the outlet pres-sure variation.When the rotational speed increases from 850 r/min to 1 450 r/min,the main frequency in the radial vertical direction shifts from 75fn to 50fn.This study provides a guidance for improving the operation stability of the twin-screw mul-tiphase pump.关键词
振动与波/双螺杆混输泵/运行工况/振动参数/振动加速度/频域分析Key words
vibration and wave/twin-screw multiphase pump/operating conditions/vibration parameter/vibration ac-celeration/frequency domain analysis分类
机械制造引用本文复制引用
孙帅辉,武鹏波,南海鹏..工况对双螺杆混输泵振动特性影响实验[J].噪声与振动控制,2024,44(3):295-300,6.基金项目
国家自然科学基金资助项目(51839010) （51839010）
陕西省自然科学基础研究计划联合基金资助项目(2021JLM-55) （2021JLM-55）
清洁能源与生态水利工程研究中心资助项目(ONZX-2019-05) （ONZX-2019-05）
陕西高校青年创新团队资助项目(2020-29) （2020-29）
