声学时差法测流技术在毕浦电站尾水渠中的应用

Application of Acoustic Transit-time Flow Measurement Technique in the Tailrace of Bipu Power Station

声学时差法流量计是国际上先进的流量测验设备,2010年浙江省首次引进,用于明渠流量测验。为了实现该设备的推广应用,对其数年来的运行经验进行了总结,探索了测验数据的内业处理方法,提出缺测资料的插补方法和成果整编方法。与走航式ADCP实测资料进行比测分析,对测量成果的准确性进行评价。结果表明,声学时差法的测流精度高,实测的流量精准可靠。

Acoustic transit- time flowmeter is an internationally advanced flow test equipment.It was first introduced to Zhejiang Province for open channel flow test in 2010.In order to achieve the popularization and application of the device,this study summarized its operating experience over the years,explored the internal processing method of test data,proposed interpolation method for measured data lack and results integration method.Through comparative analysis on measured data of underway ADCP,the accuracy of measuring outcomes was evaluated.The results showed that acoustic transit- time method has high precision;the measured flow is accurate and reliable.