新型流量计动态节流元件文丘里管的研究与优化（英文）  

Research and optimization on the venturi tube dynamic throttling element of new flowmeter

作　　者：丁建梅[1] 王海[1] 

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040

出　　处：《机床与液压》2015年第12期17-20,共4页Machine Tool & Hydraulics

摘　　要：根据动态节流元件流量计的工作过程,在雷诺数保持不变时流动是稳定的,改变流量压降可测得流量计局部压力损失。基于Fluent软件,分析了文丘里管的结构参数对压降的影响,并根据供热系统的实际情况选择了一组元件匹配合理的文丘里管参数。流量计样机完成后,通过使用二进制流量校准平台测试动态的节流元件。根据试验结果,优化也能较好地满足实际流动的条件。According to the working process of dynamic throttling element flowmeter, the Reynolds number keeps constant when the flow is steady. The way to change the pressure drop is to change the local pressure loss. Based on the Fluent software, it has been analyzed that how the structure parameters of venturi tube influence the pressure drop. With the completion of flowmeter prototype, the dynamic throttling element was tested by using a kind of binary flow calibration platform. According to the test results, it could conclude that the optimization could perfectlv meet the real flow condition.

关 键 词：流量 文丘里管 压力差 

分 类 号：TH814[机械工程—仪器科学与技术]