摘要
应用有限元法分析延迟焦化装置中焦炭塔和管道的受力和变形,并针对生焦高温工况,对带有碟形弹簧的管法兰接头进行三维数值模拟,分析碟形弹簧对垫片应力的影响。模拟结果表明,生焦时焦炭塔受高温膨胀,导致管道弯曲变形,而内压对此影响相对要小很多;高温下选用适当的碟形弹簧,有利于维持管法兰接头的垫片工作应力。
FEA was used to analyze the force and deformation of coke tower and the pipe in delayed coking unit. Three - dimensional numerical analysis for the pipe flanged joint with belleville spring was carfled on to investigate belleville spring＇s effects on gasket stress under the elevated temperature condition than the pressure＇s. Proper use of belleville spring is more favourable for maintaining the working stress of gasket of the pipe flanged joint under the condition of elevated temperature.
出处
《压力容器》
北大核心
2011年第5期15-20,共6页
Pressure Vessel Technology
关键词
有限元
延迟焦化
高温
碟形弹簧
垫片应力
FEA
delayed eoking
elevated temperature
belleville spring
gasket stress
