大口径文丘里管——供水计量的一种好方法  

Large-ized Venturi Tube, the Best Method for Water Measurement

作　　者：贾洪名 韩书芳 

机构地区：[1]开封仪表厂,河南开封475002

出　　处：《中国仪器仪表》2003年第6期42-45,共4页China Instrumentation

摘　　要：大口径文丘里管逐台经过水流量标准装置标定,准确地给出了流出系数C值及其不确定度并使之可能达到±0.5％。20年来,用于调水、供水工程中,取得了成功,为ISO5167标准的扩大应用做出了有益的探索。After having been calibrated by the standard water flow calibration rig, the large-sized Venturi tube can accurately give out the value of its flow discharge C and the uncertainty, and making the uncertainty possibly be at ±0.5%. Venturi tube has been applied successfully in diversion project and water project for more than 20 years, providing an useful survey for the extended application of ISO5167.

关 键 词：文丘里管 流出系数 实流标定 东深工程 供水计量 

分 类 号：TH814[机械工程—仪器科学与技术]