| G2.5超声波燃气表的仿真与实验研究 |
| |
| 引用本文： | 王舒文,李中阳,金文胜,陈维厅,徐晓丹,赵伟国.G2.5超声波燃气表的仿真与实验研究[J].声学技术,2021,40(4):490-495. |
| |
| 作者姓名： | 王舒文 李中阳 金文胜 陈维厅 徐晓丹 赵伟国 |
| |
| 作者单位： | 中国计量大学, 浙江杭州 310018;浙江苍南仪表集团股份有限公司, 浙江温州 325800 |
| |
| 基金项目： | 国家市场监督管理总局科技计划项目（2019MK146） |
| |
| 摘 要： | 超声波流量计在中低压燃气测量领域中，由于燃气压力小、流量变化大、流速低等因素会导致其测量精度低。针对以上问题，设计两种不同的基表结构，通过流体动力学仿真计算，获得了两种基表结构在不同流量点的流场分布，通过对超声波传播路径区域的流场速度的大小和分布均匀性分析，确定更为合理的测量管路结构。最后通过设计相关实验，验证了流场仿真分析的合理性。
|
| 关 键 词： | 时差法 测量管路模型 流场分析 |
| 收稿时间： | 2020/5/19 0:00:00 |
| 修稿时间： | 2020/9/25 0:00:00 |
Simulation and experimental study of G2.5 ultrasonic gas meter |
| |
| WANG Shuwen,LI Zhongyang,JIN Wensheng,CHEN Weiting,XU Xiaodan,ZHAO Weiguo.Simulation and experimental study of G2.5 ultrasonic gas meter[J].Technical Acoustics,2021,40(4):490-495. |
| |
| Authors: | WANG Shuwen LI Zhongyang JIN Wensheng CHEN Weiting XU Xiaodan ZHAO Weiguo |
| |
| Affiliation: | China Jiliang University, Hangzhou 310018, Zhejiang, China;Zhejiang Cangnan Instrument Group Co., Ltd, Wenzhou 325800, Zhejiang, China |
| |
| Abstract: | Due to factors such as low gas pressure, large flow rate change and low flow rate, the measurement accuracy of ultrasonic flowmeter is low. In order to solve the above problems, two G2.5 ultrasonic gas meters with two different structures are designed. Through fluid dynamics simulation, the flow field distribution at different flow values of the two pipeline models is obtained. The magnitude and distribution uniformity of the flow velocity field in the area of ultrasonic propagation path are analyzed to determine a more reasonable measuring pipeline. Finally, the related experiments are conducted to verify the validation of the simulation analysis. |
| |
| Keywords: | time different method measuring pipeline model flow field analysis |
|
| 点击此处可从《声学技术》浏览原始摘要信息 |
|
点击此处可从《声学技术》下载全文 |
|
