超声波流量计在水电站中的应用  

Application of Ultrasonic Flowmeter in Hydropower Station

作　　者：张杨 刘国峰[1] 刘君[1] ZHANG Yang;LIU Guofeng;LIU Jun(PowerChina Northwest Engineering Corporation Limited, Xi' an 710065,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065

出　　处：《西北水电》2021年第5期94-97,101,共5页Northwest Hydropower

基　　金：中国电建集团西北勘测设计研究院有限公司科技项目(XBY-KJ-2014-01).

摘　　要：通过阐述时差法超声波流量计的工作原理,对超声波流量计的分类、选型和安装要求进行了梳理总结,并以具体水电站为应用实例,结果表明:时差法超声波流量计测量的流体流速和时间差Δt成正比,两束超声波脉冲传播的时间差越大,流体的流速越大,流量越大;引水隧洞和压力钢管埋管部位应采用内贴式超声波流量计,压力钢管的明管部位宜优先采用插入式或内贴式超声波流量计。By expounding the working principle of the time difference ultrasonic flowmeter,the classification,selection and installation requirements of the ultrasonic flowmeter are sorted out and summarized,and the specific hydropower station is taken as an application example.The result shows:the fluid flow rate measured by the time difference ultrasonic flowmeter is proportional to the time differenceΔt.The greater the time difference between the two ultrasonic pulses,the greater the flow rate of the fluid,and the greater the flow;the headrace and the buried penstock shall use an internally attached ultrasonic flowmeter,and the exposed penstock should use plug-in or internally attached ultrasonic flowmeters.

关 键 词：超声波流量计 水电站 原理 选型 安装 

分 类 号：TV73[水利工程—水利水电工程]