产品分馏塔风致开裂失效分析及横风向共振  

Failure Analysis of Wind-induced Cracking and Across-wind Resonance Vibration of Product Fractionator

作　　者：白丽青 何君 BAI Li-qing;HE Jun(ShanghaiLanke Environmental Technology Co.,Ltd.,Shanghai 201803,China)

机构地区：[1]上海蓝科石化环保科技股份有限公司

出　　处：《广州化工》2019年第20期132-134,共3页GuangZhou Chemical Industry

摘　　要：使卡曼旋涡脱落的频率等于塔设备自身固有频率,以此来求解得塔设备发生横风向共振时的临界风速,确定产品分馏塔(位号:C-302)在强度计算时需要计入横风向载荷.经对该塔体上裂纹的开裂位置、裂纹处金相和断口等特点分析后,认定该塔所产生的裂纹为横风向作用下产生的疲劳开裂,并从塔设备的强度、结构、制造、现场施工等方面出发,提出抵抗横风向共振的措施.The shedding frequency of Kalman-vortex was equaled to the natural frequency of the tower equipment, so that the critical wind speed of the tower equipment can be calculated when across-wind resonance vibration occurred. The across-wind load should be taken into account in the strength calculating of the product fractionator (Item: C-302 ). After analyzing the location, metallographic examination and fractographic surface of the crack, as a result the crack was fatigue cracking which was generated by across-wind vibration. The measures to resist across-wind resonance vibration were put forward from the aspects of strength, structure, manufacture and site construction of the tower equipment.

关 键 词：塔 横风向共振 裂纹 分析 控制 

分 类 号：TQ053.5[化学工程] TE962[石油与天然气工程—石油机械设备]