摘要
在受到外力作用时,空冷热交换器翅片组-铝管胀接后的组件强度、铝管-管板的连接接头强度都会严重影响其使用性能及寿命,由此影响到整个换热系统的正常运行。通过对翅片组-铝管胀接后的组件进行拉伸、铝管-管板的连接接头进行弯曲及疲劳破坏等试验,得到了翅片组-铝管发生脱离、铝管-管板发生弯曲或松动以及铝管根部发生折断等失效情况下的最大载荷及试验曲线,并对试验中观察到的胀接失效特征进行了简单分析。
The strength of the expanded fin array-aluminum tubes,the bending of tube-tubesheet and fatigue are considered as the main factors on performance and service life.The maximum load and the experimental curve are measured by experiments in case of disengagement of fin array-tubes,bending of tube-tubesheet,looseness and break of tubes root,and the failure characteristics were analyzed.
出处
《石油化工设备》
CAS
2015年第4期20-24,共5页
Petro-Chemical Equipment
关键词
空冷热交换器
翅片组胀接
铝管-管板胀接
弯曲失效
疲劳
air cooler
expanding of air-cooled tubes with fin array
expanding of aluminum tube with tubesheet
bending failure
fatigue
