摘要
针对新型线香机在制香过程中缸筒活塞的间隙密封问题,在研究新型线香机制香的基础上,对新型线香机的密封性能进行了归纳,提出了该缸筒活塞装置泄流量的仿真研究,通过采用GAMBIT软件建立缸筒活塞的数学结构模型,利用Fluent模拟缸筒活塞的内部流动,对不同结构的间隙内部流场进行了仿真分析,得出了缸筒活塞间隙密封内压力场的流场分布图。研究结果表明,该缸筒活塞装置的内部流场的间隙密封的密封性能主要受间隙宽度的控制影响,随着压力、密封间隙的增大,泄漏量也随之增加,而缸筒与活塞之间的密封间隙最优化的宽度应控制在0.3 mm以下,可以通过减小密封间隙来减少泄漏量,该结果可对新型线香机的改进优化提供了方向。
Aiming at the problem of new incense machine existed seal dearance between the cylinder and the piston device during the movement,based on the study of new incense machine system,the sealed performance of the new incense machine was summarized,the flow simulation research on the leakage of cylinder piston device was proposed. The GAMBIT software was used to establish the mathematical model of the cylinder piston device,the FLUENT software was used to simulate the interior flow between cylinder and piston,and through simulation analysis of the internal flow field in different structure,the flow field distribution figure of seal clearance stress field between cylinder and piston was got. The results indicate that the sealing of the interier flow field between the cylinder and piston device is mainly controlled by the gap width. The leakage of cylinder piston device is adding with the pressurre and the gap wath,and the best width of seal clearance between piston and cylinder should be controlled below 0. 3 mm,there is a way to reduce leakage by decreasing the seal clearance,this method provides a direction to improve new Incense machine performance.
出处
《机电工程》
CAS
2016年第6期713-717,共5页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(51375186)
武汉工程大学研究生教育创新基金项目(CX2015020)
关键词
缸筒活塞
间隙密封
优化分析
泄漏量
cylinder piston
clearance seal
optimization analysis
leakage
作者简介
李伟（1990-），男，湖北荆州人，主要从事机械的设计仿真和优化分析方面的研究．E-mail：13207176157@163．com
通信联系人：何毅斌，男，博士后，教授，硕士生导师．E—mail：gong_da_2007@126．com
