低温潜液泵出口管系振动特性分析

发布时间：2018-01-05 05:04

本文关键词：低温潜液泵出口管系振动特性分析　出处：《低温与超导》2016年09期 　论文类型：期刊论文

【摘要】：与管系相连的动力设备对管内流体提供一定的激发,使管内流体呈脉动状态。脉动流体对管系弯头、异径管、阀门等元件集中施加一定周期的脉动激振力,引发管系振动,管系振动会引发一系列的安全问题。为此,以低温潜液泵出口管系为例,应用CAESARII软件对其进行谐响应分析,计算了潜液泵轴频激励下流体压力脉动激发的管线谐响应结果。结果表明:管系基频过低,应力超标,压力脉动下管系振动剧烈,需采取一定的防护措施以消弱管系振动;通过改变管系支撑结构与布置、减小管口附加位移、调整阀门等附件在管系中的位置,可减弱管系振动。
[Abstract]:The power equipment connected with the pipe system provides a certain excitation to the fluid in the pipe, which makes the fluid in the pipe appear pulsating state. The pulsating fluid exerts a certain period of pulsating excitation force on the components of the pipe system elbows, diameters, valves and so on. A series of safety problems will be caused by the vibration of pipe system. For this reason, the harmonic response analysis of the system is carried out by using CAESARII software, taking the outlet pipe system of cryogenic submersible pump as an example. The harmonic response of pipeline excited by fluid pressure pulsation under axial frequency excitation of submersible pump is calculated. The results show that the pipe system vibrates violently under the pressure pulsation and the fundamental frequency is too low, the stress is over the standard and the pipe system vibrates violently under the pressure pulsation. Some protective measures should be taken to reduce the vibration of pipe system. By changing the support structure and arrangement of the pipe system, reducing the additional displacement of the pipe opening and adjusting the position of the valve and other accessories in the pipe system, the vibration of the pipe system can be weakened.
【作者单位】：兰州理工大学石油化工学院;
【分类号】：O327
【正文快照】： 1引言在工程领域中,管系用以输送流体介质、传递流体动力及信息[1]。与管系相连的各种动力设备(如往复式压缩机、泵等)工作时存在一定的间隙性与周期性,动力设备对管内流体提供一定的激发,使管内流体呈脉动状态。脉动流体对管系弯头、异径管、阀门等元件集中施加一定周期的脉

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