压裂泵高压排出管汇的振动特性分析及测试  

Analysis and Test of Vibration Characteristics of High-pressure Discharge Manifold of Fracturing Pump

作　　者：姜磊 李美求[1] 华剑[1] 范杰 刘思 JIANG Lei;LI Mei-qiu;HUA Jian;FAN Jie;LIU Si(Institute of Strength and Vibration of Mechanical Structures,Yangtze University,Jingzhou 434023,China;SJ Petroleum Machinery Co,Jingzhou 434023,China)

机构地区：[1]长江大学机械结构强度与振动研究所,荆州434023 [2]中石化四机石油机械有限公司,荆州434023

出　　处：《科学技术与工程》2019年第22期143-148,共6页Science Technology and Engineering

基　　金：国家重点研发计划项目(2016YFC0303703);国家科技重大专项(2016ZX05038-001-LH002)资助

摘　　要：为了防止压裂泵高压排出管汇在工作状态下出现剧烈振动,对其进行了有限元仿真.计算发现,高压管汇的固有频率接近压裂泵的工作频率,存在共振的危险.因此根据仿真计算得到的振型改进其约束方式,经有限元仿真分析得到改进后的结果,分析表明改进约束方式后的高压管汇,其固有频率远大于压裂泵的工作频率,有效地避开了压裂泵工作频率范围.最后通过对高压管汇的试验模态分析验证了有限元仿真计算结果,为高压管汇的防振及应用提供了依据.The high-pressure discharge manifold of the fracturing pump was simulated by finite element method to avoid vibrating violently under the working condition.It was found that the natural frequency of the high-pressure manifold was close to the working frequency of the fracturing pumps,and there was also a danger of resonance.Therefore,according to the mode of vibration obtained by simulation,the constraint was improved,and the improved result was obtained by finite element simulation analysis.The analysis show that the natural frequency of the high-pressure manifold after the improved restraint mode is much higher than the working frequency of the fracturing pump and effectively avoid the fracturing pump operating frequency range.Finally,the finite element simulation calculation results are verified by the experimental modal analysis of high-pressure manifolds,which provides a basis for anti-vibration and application of high-pressure manifolds.

关 键 词：压裂泵 高压管汇 固有频率 振型 

分 类 号：TE934[石油与天然气工程—石油机械设备]