气动弹爆破过程性能仿真分析

万悦泉; 王少萍

气动弹爆破过程性能仿真分析

北京航空航天大学自动化科学与电气工程学院, 北京 100083

详细信息

作者简介:
万悦泉(1982-), 男,河北沧州人, 硕士生, moonsspring@hotmail.com.

中图分类号: TK 223.27
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出版历程
- 收稿日期: 2006-07-31
- 网络出版日期: 2007-06-30

Analysis and simulation on the dynamic process of the air-blasting device

School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 针对工业界对于安全有效的管道清洁装置的需求,设计了一种利用气动爆破的原理进行管道除垢的设备.该装置采用气动控制,利用压缩空气的瞬时释放产生的射流与冲击波的能量击碎管道内壁的附着物,实现管道除垢.通过分析装置工作的原理及运行过程,给出了重要参数的建模过程.通过仿真分析了气爆过程中压强、剪切力的分布特点以及传播过程,计算了其管道内气流速度场的分布变化,得出了气动弹爆破过程中对壁面产生的冲击主要来源于射流以及冲击波,并且在使用10MPa的工作压强下一次爆破可清理的管道范围超过160m.该设计可以高效的实现管道清污的作用.
- 气动弹 /
- 爆破除垢 /
- 冲击波 /
- 仿真
Abstract: To meet the need for a safe and effective device to clean the pipelines in the industry area, an air-blasting device was designed. The air-blasting device storages highly compressed air which could be got from air supplier and then, by suddenly releasing the compressed air, the supersonic jet current and shock waves will be generated. The shock wave and jet current will impact the wall of the pipelines to reduce the attaching dirt. The working process of this device was presented and the mathematic models of the dynamic process were built. Through simulation, the dynamic process was analyzed, and the distribution of the total pressure, velocity field, wall shear stress in the pipeline and the burst strength was given. The results show that the main energy of the cleaning force is from the shock waves and the jet current, not from the shear stress. And when using 10MPa compressed air, the cleaning scope is more than 160 meters at one time.
- pneumatic equipment /
- blast cleaning /
- shock waves /
- simulation

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参考文献(1)

[1] 余立新, 孙文超, 吴承康.气脉冲除灰技术应用研究[J]. 燃烧科学与技术,2001,7(3):224-227 Yu Lixin, Sun Wenchao, Wu Chengkang. Study on application of gas-pulse ash-cleaning technology [J]. Journal of Combustion Science and Technology, 2001,7(3):224-227 (in Chinese) [2] 徐奇焕.激波吹灰装置及其应用效果分析[J].水利电力机械,2001,23(2):31-32 Xu Qihuan. Analysis of the application effect of the dust shock-blowing device [J]. Water Conservancy & Electronic Power Machinary,2001,23(2):31-32 (in Chinese) [3] 严冰. 空气爆破技术原理及应用[J].化学清洗,1993,8(6):41-47 Yan Bing. Introduction of air-blasting technology [J]. Chemistry Cleaning, 1993, 8(6):41-47 (in Chinese) [4] 盖尔茨 E B.气动元件和系统[M].北京:机械工业出版社,1990:6-21 Gates E B. Pneumatic component and system [M]. Beijing:China Machine Press, 1990:6-21(in Chinese) [5] 陈再新,刘福长,鲍国华.空气动力学[M].北京:北京航空航天大学出版社,2004:127-154 Chen Zaixin, Liu Fuchang, Bao Guohua. Aerodynamics [M]. Beijing:Beijing University of Aeronautics and Astronautics Press, 2004:127-154 (in Chinese) [6] 廖乐明,李力能,吴家正, 等.工程热力学[M].北京:中国建筑工业出版社,1999:103-119 Liao Leming, Li Lineng, Wu Jiazheng, et al. Energetic [M]. Beijing:China Architecture Press, 1999:103-119 (in Chinese) [7] 谢峻石, 何枫.收缩喷嘴内部流道型线对射流流场的影响[J].机械开发,2000,4(1):42-48 Xie Junshi, He Feng. Effect of nozzle exit shape on aerodynamic characteristic of free jet [J]. Journal of Mechanical Development, 2000,4(1):42-48(in Chinese) [8] Gutmark E, Schadow K C, Bicker C J. Near acoustic field and shock structure of rectangular supersonic jets[J]. AIAA Journal, 1990,128(7):1163-1170 [9] Jameson A, Schmidt W, Truckle E. Numerical solution of the euler equations by finite volume methods using runge-kutta time- stepping schemes [J]. AIAA Journal, 1996,106 (6):1181-1189 [10] Tam C K, Supersonic jet noise . Annu Rev Fluid Mech, 1995, 27(1):17-43

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