摘要
为解决河北某炼油厂重交沥青装置进料管道振动过大的问题,对进料管道振动机理和减振方法进行研究。运用ANSYS的有限元方法对管道进行模态计算,并结合现场振动参数分析管道振动原因;根据阻尼减振原理分析此工况下阻尼减振对进料管道的适用性,并提出合理减振方案;根据现场管道的走向及安装条件,在保证现有框架结构不改变且不停车施工的前提下,在进料管道合适位置布置黏滞阻尼器。通过阻尼减振技术的运用,进料管道最大振动幅值由改造前的7mm降至1mm以下,减振效果显著,装置得以安全高效运行。
Aiming at solving the problem of excessive vibration in the feed pipeline of the heavy-traffic asphalt plant of an oil refinery in Hebei,the pipeline vibration mechanism and vibration reduction measures were studied.The ANSYS finite element analysis method is used to carry out modal calculation of the pipeline,and the cause of pipeline vibration is analyzed in combination with the on-site vibration situation.The feasibility of the damping vibration reduction technology under this working condition is studied through the principle of damping vibration reduction,and a reasonable vibration reduction plan is proposed.According to the direction and installation conditions of the pipeline on site,and under the premise of ensuring that the existing frame structure is not changed and construction is not stopped,a viscous damper is arranged at a suitable position of the feed pipeline.Through the application of damping and vibration reduction technology,the maximum vibration amplitude of the feed pipe has been reduced from 7 mm before the transformation to less than 1 mm.The vibration reduction effect is significant,and the device can operate safely and efficiently.
作者
杨建江
何立东
陈钊
杨扬
YANG Jianjiang;HE Lidong;CHEN Zhao;YANG Yang(Engineering Research Center of Chemical Safety Ministry of Education of Beijing University of Chemical Technology,Beijing 100029,China)
出处
《山西化工》
2021年第1期49-52,共4页
Shanxi Chemical Industry
基金
国家科技重大专项(2017-Ⅵ-0010-0047)
船舶推动噪声重点实验室基金(614220406020717)。
关键词
重交沥青装置
管道振动
有限元分析
阻尼减振
heavy-traffic asphalt plant
pipeline vibration
finite element analysis
damping vibration reduction
