Adaptability study of ultrasonic flowmeter in the flow field of reducer and straight pipe

GUO Xiao-li1; ZHENG Dan-dan1; ZHANG Tao1; YANG Fang2; WU Zhao-hui2; HU He-ming3

doi:10.13873/j.1000-97872012.05.009

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Adaptability study of ultrasonic flowmeter in the flow field of reducer and straight pipe

更新时间：2025-09-11

- Adaptability study of ultrasonic flowmeter in the flow field of reducer and straight pipe
- Vol. 31, Issue 5, Pages: 68-72(2012)
- 作者机构：
  
  1. 天津大学电气与自动化工程学院
  2. 海洋石油工程股份有限公司设计公司
  3. 中国计量科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.05.009
  CLC： U173
- Published：2012
- 稿件说明：
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[1]郭小丽,郑丹丹,张涛,杨芳,吴朝晖,胡鹤鸣.渐缩管和直管流场中超声流量计的适应性研究[J].传感器与微系统,2012,31(05):68-72.

GUO Xiao-li1, ZHENG Dan-dan1, ZHANG Tao1, et al. Adaptability study of ultrasonic flowmeter in the flow field of reducer and straight pipe[J]. 2012, 31(5): 68-72.
[1]郭小丽,郑丹丹,张涛,杨芳,吴朝晖,胡鹤鸣.渐缩管和直管流场中超声流量计的适应性研究[J].传感器与微系统,2012,31(05):68-72. DOI： 10.13873/j.1000-97872012.05.009.

GUO Xiao-li1, ZHENG Dan-dan1, ZHANG Tao1, et al. Adaptability study of ultrasonic flowmeter in the flow field of reducer and straight pipe[J]. 2012, 31(5): 68-72. DOI： 10.13873/j.1000-97872012.05.009.

摘要

针对不具备直管段安装条件

如何选择前直管段长度

从数值仿真、流场分析、误差分析等方面

对DN100四声道超声流量计上游安装DN150变DN100渐缩管和安装直管的适应性进行了研究。数值仿真分析了不同安装条件下管道中流场分布特性

指出测量误差绝对值随前直管段长度的减小而增大。通过数值仿真

上游分别安装DN150变DN100渐缩管和直管时

为了保证测量误差±0.5%内

前直管段应大于4D和8D。

Abstract

Aiming at the problem of the length selection of former straight pipe when straight pipe installing is impossible

the adaptability of DN100 four-path ultrasonic flowmeter for upstream installation of DN150 to DN100 reducer and straight pipe is studied from numerical simulation

flow field analysis and error analysis.The distribution characteristics of pipeline flow field under different conditions of installation is showed by numerical simulation which indicates the absolute value of measurement error will increase with the length of former straight pipe decrease.According to numerical simulation

to ensure the measurement error is within ±0.5 %

the length of former straight pipe should be more than 4D under the installation of DN150 change to DN100 reducer and 8D under the installation of straight pipe.

关键词

Keywords

references

单弯管下游超声流量计的安装和测量性能研究 [J]. 郑丹丹,张朋勇,孙立军,张涛,何子延. 仪器仪表学报 . 2010(07)

基于CFD的超声波流量计最优声道位置研究 [J]. 贺胜,彭黎辉,仲里敏. 仪器仪表学报 . 2009(04)

新型天然气超声波流量计量技术 [J]. 熊光德. 天然气与石油 . 2002(02)

利用CFD获取超声流量计截面速度分布 [J]. 鲍敏,傅新,陈鹰. 工程设计学报 . 2002(02)

时差法超声波流量计的研究 [J]. 李广峰,刘昉,高勇. 电测与仪表 . 2000(09)

流体力学[M]. 高等教育出版社 , 张也影[编], 1999

High-frequency transducers and correlation method to enhance ultrasonic gas flow metering [J] . P Brassier,B Hosten,F Vulovic. Flow Measurement and Instrumentation . 2001 (3)

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