摘要
斜接管结构是石油、化工、能源及动力工程中常见的一种结构。由于其结构的特殊性，在连接处的应力集中要比具有相同结构参数的正交接管接管大得多。本文对３０°大开孔（ ｄ／ Ｄ≥０．５） 斜接管容器进行了弹－ 塑性应力分析及爆破试验，确定了这种结构最薄弱的部位，根据不同的准则确定了它的塑性极限载荷及其实际的爆破压力，为这种结构的极限设计提供了依据。
The structure of slant nozzle is often used in the equipment in chemical, petrochemical, energy and power industries. In view of the particularity of this structure, the peak stress at the joint is much greater than that in the structure of perpendicular nozzles with the same parameters. On the basis of the explosion test, the elastic-plastic stress analysis for the large opening vessel (d/D >= 0.5) with the slant nozzle (the slant angle = 30() was carried out in this paper. The most dangerous position of this structure as well as the plastic ultimate load and practical explosion pressure were, then, determined in accordance with deferent codes. Therefore, the basis of the limit design was presented.
关键词
斜接管
压力容器
管道
连接
极限载荷
slant nozzle, pressure vessel, pipe connection, limit design, explosion test
