并排塔器流致振动特性及预测模型研究  

Study on the flow-induced vibration characteristics and prediction model of parallel towers

作　　者：樊显涛 唐博文 谭蔚[1] FAN Xiantao;TANG Bowen;TAN Wei(School of Chemical Engineering and Technology,Tianjin University,Tianjin 300350,China)

机构地区：[1]天津大学化工学院,天津300350

出　　处：《压力容器》2022年第2期1-10,共10页Pressure Vessel Technology

基　　金：国家自然科学基金项目(21978202)。

摘　　要：并排塔器是伴随着行业精细化、高效化和大型化出现的新型组合设备,呈现并列密排的特点,且各塔之间不设连接平台和框架,相互独立。目前,由于各塔之间的耦合作用,并排塔器的流致振动特征尚未明确,导致其设计无据可依。在大气边界层风洞中,研究了串列、并列和交错布置时并排塔器的流致振动现象,获得了典型的振动特征和尾流影响区域,并提出了振动响应预测模型,计算其最大振幅,辅助工程设计。结果表明:并排塔器在串列排布时的振动随间距比分为4种状态,最大振幅超过单塔振幅的2倍;在并列排布时的振动分为两种状态,最大振幅接近单塔的振幅;在风攻角小于30°内存在显著的尾流干扰效应。Parallel tower is a new type of integrated equipment with the industry development towards refinement,high efficiency and large scale.They are closed to each other,and each tower is independent without any connecting platform and frame between them.At present,the flow-induced vibration characteristics of the parallel towers are not clear due to the coupling effect,resulting in lacks of theoretical basis in the design of parallel towers.Experimental investigations of the flow-induced vibration(FIV)of parallel towers with tandem,side-by-side and staggered arrangements were conducted in an atmospheric boundary layer(ABL)wind tunnel.The vibration characteristics and wake influence area were obtained.The vibration prediction model was proposed to calculate the maximum amplitude,which can aid the design in engineering.The results show that four FIV regimes exist for parallel towers with tandem arrangement,where the maximum amplitude is more than twice that of a single tower;there are two regimes for parallel towers with side-by-side arrangement,where the maximum amplitude is close to that of a single tower;and there is a significant wake interference effect when the wind angle of attack is less than 30°.

关 键 词：并排塔器 流致振动 耦合效应 尾流干扰 响应预测 

分 类 号：TH113.1[机械工程—机械设计及理论] TQ053.5[化学工程]