Control Method And Experimental Verification Of Pipeline Flow Fluctuation Generator

流量控制、测量及可视化(英文) Pub Date : 2023-01-01 DOI:10.21014/tc9-2022.129

Lianfeng Cheng, Chao Xing, Xiaopeng Li, Fan Chen, Huanchang Wei, T. Meng, Huichao Shi

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Abstract

In the actual flow measurement process, flow fluctuations often propagate in the pipeline, which may cause large deviations in the flow measurement results. In order to systematically study the influence of different flow fluctuations on the measurement results of the flowmeter, it is necessary to simulate different controllable flow fluctuations in the pipeline. This paper designs different wave control methods for a vane flow fluctuation generator, and uses LabVIEW programming to control the motor to drive the butterfly valve to swing, forming controllable flow fluctuation of sine wave, frequency conversion sine wave and variable amplitude sine wave in the pipeline. Finally, based on the hot water flow standard facility of National Institute of Metrology(NIM), a real flow experiment is designed to verify the control method of the fluctuation generator. Experimental results show that the proposed control method can control the flow fluctuation generator to generate controllable sine wave, frequency conversion wave and variable amplitude wave , and the flow fluctuation can be propagated along the pipeline upstream and downstream.

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管道流量波动发生器的控制方法及实验验证

在实际流量测量过程中，流量波动往往在管道中传播，这可能会导致流量测量结果出现较大偏差。为了系统地研究不同流量波动对流量计测量结果的影响，有必要对管道中不同的可控流量波动进行模拟。本文针对叶片式流量波动发生器设计了不同的波动控制方法，并利用LabVIEW编程控制电机驱动蝶阀摆动，在管道中形成可控流量波动的正弦波、变频正弦波和变幅正弦波。最后，以国家计量研究院热水流量标准装置为基础，设计了实际流量实验，验证了波动发生器的控制方法。实验结果表明，所提出的控制方法可以控制流量波动发生器产生可控的正弦波、变频波和变幅波，并且流量波动可以沿管道上下游传播。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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流量控制、测量及可视化(英文)

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