水泥余热发电机组空冷岛振动问题分析与处理  

Analysis and Treatment of Vibration of Air Cooling Island of Cement Waste Heat Generator Unit

作　　者：李昊晨 田松峰[1] 丁闪闪 LI Haochen;TIAN Songfeng;DING Shanshan(School of Energy Power and Mechanical Engineering,North China Electric Power University,Baoding 071003,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003

出　　处：《电力科学与工程》2021年第8期73-78,共6页Electric Power Science and Engineering

摘　　要：为解决山西某水泥余热发电厂因生料磨振动而导致的空冷岛结构振动超标问题,采用粘弹性人工边界单元,建立振源–土体–空冷岛结构的三维模型,通过对空冷岛进行模态分析得出其主要振动频率,结合振动在土体中的传递及衰减规律,提出隔振沟隔振的解决办法。针对沟深、沟宽、沟数量、沟间距及距振源距离等参数对隔振沟隔振效果的影响进行分析,选定隔振沟各参数的最优值并确定最佳方案,从而使空冷岛设备可以正常运行。In order to solve the problem of excessive vibration of the air cooling island structure caused by the vibration of the raw mill in a cement waste heat power plant in,Shanxi province,viscoelastic artificial boundary elements was used to establish a three-dimensional model of the vibration source-soil-air cooling island structure.The main vibration frequency was obtained through modal analysis,combined with the transmission and attenuation law of vibration in the soil,the solution to the vibration isolation of vibration isolation ditch was proposed.And the ditch depth,ditch width,ditch number,ditch spacing,distance from the vibration source and other parameters were used to analyze the effect of vibration isolation on vibration isolate ditch.The optimal value of each parameter of the vibration isolation ditch was selected to determine the best plan,so that the air cooling island equipment can be operated normally.

关 键 词：水泥余热发电 空冷岛 隔振沟 有限元分析 

分 类 号：TM6[电气工程—电力系统及自动化]