污水排放大口径流量计现场检测技术的研究  

Research on On-site Testing of Large-caliber Wastewater Flowmeter

作　　者：李宁 向德华 周艳 徐旷宇 宋旭希[2] LI Ning;XIANG Dehua;ZHOU Yan;XU Kuangyu;SONG Xuxi(Hunan Institute of Metrology and Test,Changsha,410014,China;China Machinery International Engineering Design&Research Institute Co.,Ltd,Changsha 410003,China)

机构地区：[1]湖南省计量检测研究院,长沙410014 [2]中机国际工程设计研究院有限责任公司,长沙410003

出　　处：《计量技术》2020年第6期8-11,共4页Measurement Technique

基　　金：国家市场监督管理总局科技计划项目(2019MK059)。

摘　　要：针对大口径流量计的现场量值溯源,结合实例,设计了一套指导换能器现场安装的辅尺,较好地解决了直径测量不准、换能器定位不精确的问题;提出了针对检测井、流量计上游处理、管道安装等三个方面的设计建议,可为污水处理工艺设计和大口径流量计量值溯源提供有益的指导与帮助。Given the on-site traceability of large-caliber flowmeter,combined with an example,this paper designed a set of auxiliary scales to guide the on-site installation of the transducer with case studies,which can better solve the inaccuracy in diameter measurement and transducer positioning.This paper put forward design suggestions on three aspects,including the detection well,the upstream treatment of flowmeter,and the pipeline installation,which provides useful guidance for the design of the wastewater treatment process and the traceability in large-caliber flowmeter measurement.

关 键 词：大口径流量计 现场 超声流量计 校准 

分 类 号：X703[环境科学与工程—环境工程] TH814[机械工程—仪器科学与技术]