换热器管线阻尼减振技术研究
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摘要
为解决某化工厂常压塔换热器出口管线振动严重的问题,保证管线的安全运行,对换热管线振动机理及减振措施进行了研究。采用有限元分析手段,运用ANSYS有限元软件分析了管道固有模态;运用Fluent软件模拟了管道内部流体激振情况,从根源上分析了管道振动原因;结合现场实际安装条件与有限元仿真,探究了阻尼减振技术对换热器管线的减振效果;在管道振动相应位置安装了粘滞性阻尼器,明显抑制了换热器管道振动。研究结果表明:阻尼减振技术可以有效降低管道振动,同时阻尼减振技术不改变管道原有结构,可以有效吸收振动能量,不会产生振动转移的现象。
Aiming at solving the serious vibration problem of the outlet pipe of the atmospheric tower heat exchanger of a chemical plant,ensuring the safe operation of the pipeline,the research on vibration mechanism and vibration reduction method of heat exchanger pipeline were carried out. The natural mode of the pipeline was calculated by ANSYS finite element software,and the fluid excitation inside the pipe was calculated by Fluent finite element software for the purpose of analyzing the fundamental cause of pipe vibration. Combining the actual installation conditions and finite element simulation,the effect of damping technology on the heat exchanger pipeline was explored. The viscous damper was installed at a certain place of pipe. After using damping technology,the vibration of heat exchanger pipeline was successfully reduced. The results indicate that the damping technology can effectively reduce the pipeline vibration,and energy of vibration is significantly absorbed,moreover,the original structure of pipe do not be changed by damping technology and vibration energy do not be transported.
Aiming at solving the serious vibration problem of the outlet pipe of the atmospheric tower heat exchanger of a chemical plant,ensuring the safe operation of the pipeline,the research on vibration mechanism and vibration reduction method of heat exchanger pipeline were carried out. The natural mode of the pipeline was calculated by ANSYS finite element software,and the fluid excitation inside the pipe was calculated by Fluent finite element software for the purpose of analyzing the fundamental cause of pipe vibration. Combining the actual installation conditions and finite element simulation,the effect of damping technology on the heat exchanger pipeline was explored. The viscous damper was installed at a certain place of pipe. After using damping technology,the vibration of heat exchanger pipeline was successfully reduced. The results indicate that the damping technology can effectively reduce the pipeline vibration,and energy of vibration is significantly absorbed,moreover,the original structure of pipe do not be changed by damping technology and vibration energy do not be transported.
引文
[1]余栋栋,何立东,冀沛尧.阻尼减振技术在管道上的应用研究[J].噪声与振动控制,2017,37(6):186-189.
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[3]赵伟红.往复式压缩机管道振动原因与减振措施[J].中国设备工程,2007(6):40-43.
[4]韩万富,何立东,姜杨,等.阻尼减振技术在离心压缩机出口管道减振中的应用研究[J].石油化工设备技术,2012(4):43-46.
[5]陶荣,徐阳,仲庆.气液两相流管道的应力分析[C].中国石油和化工勘察设计协会化学工程设计专业委员会(全国仪工化学工程设计技术中心站)2014年年暨技术交流会,西安:中国石油仪工勘察设计协会公学工程设计专业委员会,2014.
[6]徐进.化工工程中振动管道的设计浅析[J].化工管理,2014(21):188-189.
[7]许本文,焦群英.机械振动与模态分析基础[M].北京:机械工业出版社,1998
[8]李德忠,梅宁,陆建辉.海洋平台输液管道激振流体特性研究[J].管道技术与设备,2006(3):5-7.
[9]陈果,何立东,韩万富,等.丁烯离心泵和柱塞泵的管道振动分析及阻尼减振研究[J].机电工程,2013,30(2):167-170.
[10] SINGIRESU机械S RAO.机械振动[M].北京:清华大学出版社,2014.
[2]周云,刘季.管道振动及其减振技术[J].哈尔滨建筑大学学报,1994,27(5):108-114.
[3]赵伟红.往复式压缩机管道振动原因与减振措施[J].中国设备工程,2007(6):40-43.
[4]韩万富,何立东,姜杨,等.阻尼减振技术在离心压缩机出口管道减振中的应用研究[J].石油化工设备技术,2012(4):43-46.
[5]陶荣,徐阳,仲庆.气液两相流管道的应力分析[C].中国石油和化工勘察设计协会化学工程设计专业委员会(全国仪工化学工程设计技术中心站)2014年年暨技术交流会,西安:中国石油仪工勘察设计协会公学工程设计专业委员会,2014.
[6]徐进.化工工程中振动管道的设计浅析[J].化工管理,2014(21):188-189.
[7]许本文,焦群英.机械振动与模态分析基础[M].北京:机械工业出版社,1998
[8]李德忠,梅宁,陆建辉.海洋平台输液管道激振流体特性研究[J].管道技术与设备,2006(3):5-7.
[9]陈果,何立东,韩万富,等.丁烯离心泵和柱塞泵的管道振动分析及阻尼减振研究[J].机电工程,2013,30(2):167-170.
[10] SINGIRESU机械S RAO.机械振动[M].北京:清华大学出版社,2014.