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阐述在线多相流量计的开发原理和国内外低含液率气液两相流计量技术研究的主要技术路线。结合海上含液天然气流量计开发工作,全面系统地总结了流量计开发的技术路线和研究成果。详细介绍槽式孔板的单相流与两相流测量特性、基于双槽式孔板组合测量原理与软测量技术的流量计计量算法等内容,指出了需要进一步深入研究的方向。
The principle of the development of online multiphase flowmeter and the main technical route of the measurement technology of low liquid content gas-liquid two-phase flow at home and abroad are described. Combined with the development of seawater containing natural gas flowmeter, the technical route and research results of flowmeter development are comprehensively and systematically summarized. The characteristics of single-phase flow and two-phase flow measurement of slot orifice are introduced in detail. The principle of double-slot orifice plate measurement and the measurement algorithm of flowmeter based on soft measurement technology are introduced in detail, pointing out the direction for further study.