时差式超声波流量计在刘老涧泵站中的应用及分析  

Application and Analysis of Time Difference Ultrasonic Flowmeter in Liulaojian Pumping Station

作　　者：吉庆伟[1] 李进东 张一祁 袁尧 杨帆[3] JI Qingwei;LI Jindong;ZHANG Yiqi;YUAN Yao;YANG Fan(Luoyun Management Division of Jiangsu Province,Suqian 223800,Jiangsu,China;Jiangsu Hydraulic Science Institute,Nanjing 210017,Jiangsu,China;College of Hydraulic Science and Engineering,Yangzhou University,Yangzhou 225127,Jiangsu,China)

机构地区：[1]江苏省骆运水利工程管理处,江苏宿迁223800 [2]江苏省水利科学研究院,江苏南京210017 [3]扬州大学水利科学与工程学院,江苏扬州225127

出　　处：《浙江水利科技》2021年第6期68-71,76,共5页Zhejiang Hydrotechnics

基　　金：国家科技支撑计划项目(2015BAD20B01-02);江苏省科协青年科技人才托举工程项目(苏科协发[2018]99号);扬州市校科技合作资金项目(YZU201901);江苏省创新能力计划项目(BM2018028)。

摘　　要：流量测量在泵站现场测试中起到重要的作用。以刘老涧泵站工程为背景,介绍时差式超声波流量计的测流原理与测流方法,并根据现场应用的经验,进行渠道清淤、安装位置等调整。经过现场测试,流量综合不确定度为0.830%,满足SL 548—2012《泵站现场测试与安全检测规程》的精度要求。将实测数据与物理模型试验结果进行对比,在测试扬程2.69~3.42 m范围内,现场测试的流量数值与模型试验换算结果相比基本偏小。Flow measurement plays an important role in field test of pump station.This paper takes Liulaojian Pumping Station as engineering background,introduces flow measurement principle and flow method of time-difference ultrasonic flowmeter,and adjusts channel silting and installation position according to field application experience.The comprehensive uncertainty of flow measurement is 0.830%and less than 1%,which meets the accuracy requirements of SL 548—2012 the code of practice of field testing of performance and safety for pumping station.By comparing the measured data with the physical model test results,in the range of test head 2.69~3.42 m,the flow value tested in the field is smaller than that converted by the model test.

关 键 词：泵站 流量计 时差式 现场测试 

分 类 号：TV675[水利工程—水利水电工程]