A wet gas dual-parameter measuring device composed of a cyclone and a long-throated Venturi tube is proposed to overcome the difficulty of measuring the liquid content of wet gases and reduce the error caused by the wet gas flow pattern. The flow pattern is transformed into an annular flow by a cyclone. In this study, the proposed device was compared with a traditional non-cyclone long-throat Venturi tube; furthermore, the pressure difference ratio W between the contraction and expansion sections of the long-throat Venturi tube was introduced as a parameter. Through numerical simulations, the relationship between W, the gas Froude number, over-reading, and liquid-gas mass flow ratio was analyzed, and a new wet gas flow measurement model was established. The reliability of the measurement model was verified through indoor experiments. The experimental results showed that the traditional wet gas measurement device had gas phase and liquid phase errors of ±4.5% and ±10%, respectively; on the other hand, the cyclone-based wet gas measurement device had gas phase and liquid phase errors of ±3% and ±8%, respectively. Thus, the performance of the wet gas measurement device with the cyclone was higher than that of the traditional wet gas measurement device.

为克服湿气含液量测量困难，减少湿气流型带来的误差，提出了一种由旋风分离器和长喉文丘里管组成的湿气双参数测量装置。通过旋风分离器将流型转变为环形流。在这项研究中，所提出的装置与传统的非旋风长喉管文丘里管进行了比较；此外，还引入了长喉文丘里管收缩段和膨胀段之间的压差比W作为参数。通过数值模拟，W, 对气体弗劳德数、超读数和液气质量流量比进行了分析，建立了一种新的湿气流量测量模型。通过室内实验验证了测量模型的可靠性。实验结果表明，传统湿式气体测量装置的气相和液相误差分别为±4.5%和±10%；另一方面，基于旋风分离器的湿气测量装置的气相和液相误差分别为±3%和±8%。因此，带有旋风分离器的湿气测量装置的性能高于传统湿气测量装置的性能。