蓄压器膜盒低温液压冲击试验研究

发布时间：2018-01-03 05:03

本文关键词：蓄压器膜盒低温液压冲击试验研究　出处：《液压与气动》2017年11期 　论文类型：期刊论文

【摘要】：为在地面验证蓄压器膜盒承受低温水击压力冲击的性能,建立了一种膜盒低温液压冲击试验系统。该系统以落锤作为能量冲击源,通过能量转化实现膜盒压力变化。对液压冲击试验系统进行了阐述,介绍了试验冲击压力、低温环境等边界条件模拟方法,分析了低温液压冲击试验中的关键技术,开展了蓄压器膜盒低温液压冲击试验,并对膜盒液压冲击过程进行了研究分析。试验结果表明,采用该试验方法能够考核膜盒液氮温区液压冲击性能,最后对试验过程中存在的问题提出改进方向。
[Abstract]:In order to verify the performance of the diaphragm box of the accumulator under low temperature water hammer pressure shock on the ground, a low temperature hydraulic impact test system of the diaphragm box was established, in which the drop hammer was used as the energy shock source. The hydraulic impact test system is described, and the boundary conditions simulation methods such as test impact pressure and low temperature environment are introduced. The key technology of low temperature hydraulic impact test was analyzed, the low temperature hydraulic impact test of the diaphragm box of the accumulator was carried out, and the hydraulic impact process of the membrane box was studied and analyzed. The test method can be used to test the hydraulic impact performance in the liquid nitrogen temperature range of the diaphragm box. Finally, the improvement direction of the existing problems in the test process is put forward.
【作者单位】：北京宇航系统工程研究所;深低温技术研究北京市重点实验室;
【分类号】：TH137
【正文快照】： 引言蓄压器在工作过程中需承受的压力包括工作压力和水击压力。当液体火箭发动机启动或关机时,推进剂输送管路内会产生剧烈的压力脉动,即水击现象,有时甚至可以达到工作压力的数倍。蓄压器膜盒液压冲击试验是模拟箭上发动机开、关机引起的水击现象,在地面验证其承受水击压力的

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