氢气压缩机管路振动原因及治理方案  

Causes and control measures for vibration of hydrogen compressor pipeline

作　　者：晁家明 余小玲 王子华 江智元 张国宾 舒悦 CHAO Jiaming;YU Xiaoling;WANG Zihua;JIANG Zhiyuan;ZHANG Guobin;SHU Yue(School of Energy and Power Engineering,Xi'an Jiaotong University;School of Chemical Engineering and Technology,Xi'an Jiaotong University;Hefei General Machinery Research Institute//State Key Laboratory of Compressor Technology(Anhui Province Key Laboratory of Compressor Technology))

机构地区：[1]西安交通大学能源与动力工程学院 [2]西安交通大学化学工程与技术学院 [3]合肥通用机械研究院有限公司·压缩机技术国家重点实验室(压缩机技术安徽省实验室)

出　　处：《油气储运》2023年第8期952-960,共9页Oil & Gas Storage and Transportation

基　　金：国家重点研发计划“中低压纯氢与掺氢燃气管道输送及其应用关键技术”,2021YFB4001604;国家自然科学基金“超高压压缩机气缸-管路气流脉动双向传播耦合规律与解耦抑制机理研究”,52076166;压缩机技术国家重点实验室(压缩机技术安徽省实验室)开放基金项目“基于数字图像处理的往复式压缩机智能故障诊断方法研究”,No.SKL-YSJ202111。

摘　　要：严重的管路振动将会影响氢气压缩机装备的安全运行,针对某变工况氢气压缩机在60%气量负荷下一级进气管路振动剧烈的现象,在40%~100%气量负荷工况下对其一级进气管路进行了管路内气流脉动及管道振动测试。按照现场实际管道尺寸及走向建立了气流脉动分析模型及管道模态分析模型,开展了气流脉动分析及管道模态分析。基于测试与仿真结果,得到一级进气管路产生剧烈振动的原因是在管道的2阶固有频率处发生了机械共振,提出了针对性的管道振动治理方案,使该压缩机一级进气管路振动值降至可接受的范围内。此次振动原因分析及治理方法对于变工况氢气压缩机管路系统的设计、运行及振动监测具有重要的指导意义。Severe pipeline vibration will affect the safe operation of hydrogen compressor equipment.In terms of the violent vibration of the primary gas intake pipeline of a variable operating conditions hydrogen compressor with a 60% gas load,the gas flow pulsation and vibration of the primary gas intake pipeline were tested under 40%~100% gas load conditions.Also,gas flow pulsation analysis and pipeline modal analysis were carried out by modeling according to the actual pipeline size and routing.Based on the test and simulation results,it was concluded that the violent vibration of the primary gas intake pipeline was caused by the mechanical resonance at the pipeline point with second-order natural frequency.Meanwhile,the targeted pipeline vibration reduction measures were put forward to reduce the vibration value of the primary intake pipeline of the compressor to an acceptable range.The vibration causes analysis and control method are of great guiding significance for the design,operation and vibration monitoring of the pipeline system of hydrogen compressor under variable working conditions.

关 键 词：氢气压缩机 气流脉动 模态分析 振动治理 

分 类 号：TE832[石油与天然气工程—油气储运工程]