文档介绍：柱塞结构对高压脉动水锤装置
产生压力冲击的影响
【摘要】高压脉动水锤装置产生压力冲击的过程中,柱塞起着传递能量和产生冲击的作用,其结构上的尺寸比例与水锤装置的输入、输出压力比值存在一定的关系。文章通过假设,理论分析得出了这一关系式,并通过实验来进行了测试验证,得出结论为水锤装置压力比极值所对应的柱塞直径比位于1∶3~1∶2之间。最后针对理论与实验之间的差异进行了简单的分析。
关键词:柱塞结构;冲击压力;比例关系
中图分类号: TH 文献标识码:
The Effect of Plunger on Producing Pressure Impact of the Water-hammer Device for High Impulse Pressure
Cheng De-fan, Zhang Jing-song, Zhang Fei, Wei Li-jun
(School of Mechatronic Engineering, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China)
[Abstract]In the process of producing pressure impact of the water-hammer device for high impulse pressure, the plunger plays as the role to transmit power and produce impact. And there is a relationship between the dimensional proportion of plunger and the pressure ratio of the water-hammer device. Based on some hypothesis, this paper deduced a theoretic equation of this relationship, and checked it by some verified experiments, attained the conclusion that the plunger’s diameter ratio, which is correspondence with the pressure ratio extremum of the device, is between 1∶3 and 1∶2. At last, we did some analysis for the difference between the therotical result and the experimental one.
Keywords: structure of plunger; impact pressure; proportional relationship
引言
作为一种能产生压力冲击的冲击设备,高压脉动水锤装置[1]以水为工作介质,水泵为动力源,其结构如图1所示[2]。整个装置由高压缸、低压缸、主弹簧座三个外部壳体和内部的柱塞组件、主弹簧、顶杆系统所组成。其产生压力冲击的工作原理为:水泵提供的低压注水推动柱塞下