一种活塞式推冲器的优化设计及应用

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英文篇名：Optimization of Piston-style Thruster Mechanism and Its Application 中文刊名：爆破器材 英文刊名：Explosive Materials 作者：冯国富 ; 汪长栓 ; 姚元文 ; 王健 英文作者：FENG Guofu ; WANG Changshuan ; YAO Yuanwen ; WANG JianXi'an Modern Chemistry Research Institute(Shaanxi Xi'an ; 710065) 中文关键词：推冲器 ; 活塞式 ; 冲击速度 ; 液体阻尼 ; 火药 ; 优化 英文关键词：thruster ; piston-style ; impact velocity ; liquid damping ; propellant ; optimization 出版日期：2009-12-20 机构：西安近代化学研究所; 年：2009 期：06 出版单位：爆破器材

摘要

针对活塞式推冲器冲击速度偏大的问题,从火药燃烧性能优化、增加液体阻尼等方面入手提出了解决方案。用伯努力方程对影响冲击速度的关键因素进行了理论分析,结果表明液体阻尼可以大大减弱冲击速度对燃气室压力的敏感程度,进而减小活塞杆对后接装置的冲击力。运用液体阻尼技术,设计了一种井下地震层析成像系统用推冲器,经现场使用,解卡成功率达100%,为以后同类推冲器设计提供了重要参考。
With respect to the problem of great impact velocity often encountered in piston-style thruster,this paper presents a solution with the benefit of optimizing combustion property of propellant and increasing liquid damping the piston.The liquid damping effect can efficiently weaken the influence of combustion chamber pressure on impact velocity of piston-rod,which was theoretical analyzed by Bernoulli Equation.The impact force produced by the collision between piston-rod and rear device was decreased correspondingly.A piston-style thruster used for releasing stuck device(Seismic Tomography System) in oilwell was designed by exercising this research achievement.It is proved that the success rate of this thruster rescued the device successfully from stuck condition in oilwell is 100%,which can provide an important reference for relative thruster.

引文

[1]汪长栓,冯国富,姚元文,等.油田井下多波测试仪用解锁装置的设计[A].东营:中国石油学会射孔分会第四届年会论文集[C],2004,137~140.
    [2]张兆顺,崔桂香.流体力学[M].北京:清华大学出版社,1999.