直管段长度对涡轮流量计测量性能的影响  

Effects of Straight Pipe Sectionon the Measurement Performance of Turbine Flowmeter

作　　者：杨芳[1] YANG Fang(Offshore Oil Engineering Co. , Ltd, Tianjin 300450, Chin)

机构地区：[1]海洋石油工程股份有限公司,天津300450

出　　处：《仪表技术》2016年第9期24-27,共4页Instrumentation Technology

摘　　要：利用恒定水压作为流动介质,以流出系数平均相对误差、线性度为评价指标,通过实流实验,研究上游组合管件对涡轮流量计测量性能的影响。根据不同的上游阻流件对涡轮流量计测量精度的影响进行了实流实验研究。根据实验结果,为保证相对误差在可接受范围,给出对于不同形式的上游组合管件涡轮流量计对前直管段长度的建议。The experimental medium is the water with constant pressure. The average relative error and the linearity of the discharge coeffieientare the evaluating indexes. Through experiments, the effects of pipe fitting and upstream fittings combinations on the performance of measurement are researched. According to the experimental results, suggestions on installation requirements for Turbine flowmeter are given for different upstream fitting combinations to guarantee the relative error within a certain range.

关 键 词：涡轮流量计 流出系数相对误差 组合管件 直管段 

分 类 号：TH814[机械工程—仪器科学与技术]