节流装置测量脉动流量

• 作 者: 陆水钧
• 机 构: 浙江大学化工仪表教研组,
• 出 处: 化工自动化及仪表
• 发表日期: 1985年03期
• 关键词: 脉动流 节流装置 积算 活塞式水泵 稳压容器 出口流量 流量测量 刻度系数 脉动频率 孔板

一、问题的提出由于工程上使用着许多脉动机械——压气机、内燃机、真空泵、活塞式水泵等等,这些机械的进、出口流量的准确测量不仅是研究这些机械的动特性所必须的,而且也是能耗测定所不可缺少的。然而,要精确测量脉动流量並非一件容易的事,这是因为流量计都是在定常流的状态下进行标定的,所得

First, the issue put forward due to the engineering use of many pulsating machinery - compressors, internal combustion engines, vacuum pumps, piston pumps and so on, the import and export of these machines accurate measurement of flow is not only necessary to study the dynamic characteristics of these machines, But also the determination of energy consumption is indispensable. However, it is not easy to accurately measure the pulsating flow rate, because the flow meters are calibrated under a steady flow condition and the resulting