Abstract Swirlmeters are widely used to measure natural gas because of their simple structure, absence of internal moving parts and high measurement accuracy. However, fine particles in natural gas can affect swirlmeters’ metering accuracy. Hence, this study evaluated the metrological characteristics of swirlmeters measuring gas–solid two-phase flow with fine particles and different swirler helix angles. Experiments and simulations for swirlmeters with different solid–gas mass ratios and helix angles were performed. The results demonstrated that the swirlmeter meter factors decreased and pressure losses increased as the solid–gas mass ratio increased. With different solid–gas mass ratios, the most effective sensor detection position was at the throat outlet a half radius from the centre of the runner. The swirler with a smaller helix angle could significantly increase the meter factor, while the swirler with a larger helix angle could significantly decrease pressure losses. The swirlmeter internal flow losses were mainly derived from the swirler.

中文翻译：

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气固两相流中不同旋流器螺旋角旋流计计量特性的实验与数值研究

摘要 旋流计具有结构简单、内部无运动部件、测量精度高等优点，被广泛应用于天然气的测量。然而，天然气中的细小颗粒会影响旋流计的计量精度。因此，本研究评估了旋流计测量具有细颗粒和不同旋流器螺旋角的气固两相流的计量特性。对具有不同固气质量比和螺旋角的旋流计进行了实验和模拟。结果表明，随着固气质量比的增加，旋流计系数降低，压力损失增加。对于不同的固气质量比，最有效的传感器检测位置是在距离流道中心半半径的喉咙出口处。螺旋角较小的旋流器可以显着提高仪表系数，而螺旋角较大的旋流器可以显着降低压力损失。旋流计内部流动损失主要来自旋流器。