超临界CO_2萃取釜卡箍式快开结构强度分析及优化设计  

Strength Analysis and Optimization of Hoop-Locked Quick Closure Structure of Supercritical CO_2 Extraction Kettle

作　　者：姜策[1] 李庆生[1] JIANG Ce LI Qingsheng(College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 211816, China)

机构地区：[1]南京工业大学机械与动力工程学院,江苏南京211816

出　　处：《轻工机械》2017年第2期32-37,共6页Light Industry Machinery

摘　　要：为了实现萃取釜的轻量化设计,采用ANSYS软件对60 L超临界CO_2萃取釜进行有限元分析,得出萃取釜卡箍式快开结构的应力分布;在满足强度和抗疲劳性能的前提下,分别采用安全裕度法和JB 4732应力评定法提取状态变量,以体积最小为目标进行优化设计。结果表明:2种方法优化后的效果明显,优化后的体积分别减少了22.5%和24.2%。优化设计达到了轻量化目的,同时为萃取釜卡箍式快开结构优化设计提供有益参考。In order to realize the lightweight design of extraction kettle, based on finite element analysis of the 60 L supercritical CO2 extraction kettle, the stress distribution of the hoop-locked quick closure structure of supercritical extraction kettle was obtained. Under the condition of meeting the requirements of strength and fatigue resistance, the safety margin method and JB 4732 stress evaluation method were used to extract the state variables, with the minimum volume as the object to optimize the structure. The results show that the effects of the two methods are obvious, and the volume was reduced of 22.5% and 24.2% respectively after the optimization and the purpose of lightweight design is achieved. And it provides references for the structural optimization design of quick closure device of extraction kettle.

关 键 词：萃取釜 卡箍式快开结构 轻量化设计 有限元分析 安全裕度法 

分 类 号：TQ052.4[化学工程]