离心机振动噪声控制实例分析  

Example analysis of centrifuge vibration noise control

作　　者：郑深根 黄城宝 俞键 王伟杰 黄敏冰 王飞 闫锦[2] 黄朝明 廖建彬[2] ZHENG Shengen;HUANG Chengbao;YU Jian;WANG Weijie;HUANG Minbing;WANG Fei;YAN Jin;HUANG Chaoming;LIAO Jianbin

机构地区：[1]福建金闽再造烟叶发展有限公司,福建福州350600 [2]集美大学轮机工程学院,福建厦门361021

出　　处：《现代机械》2023年第4期93-98,共6页Modern Machinery

摘　　要：为降低离心机的振动噪声,通过理论分析和现场测试的方式,研究了离心机结构的固有特性。研究发现离心机滚筒的动平衡和主电机对振动的影响较大,滚筒表面光洁度和周围空气流场波动性对噪声的影响较大。通过改变隔声罩的结构,在导流板增设阻尼层,增设全包裹式吸声层等方法减振降噪。改造后,离心机的振动烈度减小,噪声降低了10 dB左右,减振降噪效果显著。In order to reduce the vibration noise of the centrifuge,through theoretical analysis and field test,we studied the inherent characteristics of the centrifuge.It was found that the dynamic balance of the centrifuge drum and the main motor had a significant impact on the vibration,and the surface finish of the drum and the fluctuation of the surrounding air flow field had a significant impact on the noise.By changing the structure of the sound insulation cover,adding a damping layer on the deflector,and adding a fully wrapped sound absorption layer,the vibration noise was effectively reduced.After the improvement,the vibration intensity of the centrifuge was reduced,and the noise was reduced by about 10 dB.

关 键 词：离心机 振动噪声 测试分析 

分 类 号：TB499[一般工业技术]