科氏质量流量计测量含气液体流量关键技术综述

含气液体流量测量是科氏质量流量计面临的测量难题,对科氏质量流量计的驱动技术、信号处理技术都提出更高的要求。从驱动、信号处理、误差修正这3大核心技术出发对科氏质量流量计测量含气液体流量进行综述,分析含气液体流量下,驱动、信号处理以及误差修正技术的难点,并针对难点总结出含气液体流量下最佳的驱动技术、信号处理技术和误差修正技术。分析含气液体流量科氏质量流量计原始测量误差大的原因以及采用修正方法修正后的测量精度依旧无法达到单相流测量精度0.1级的原因,为提高科氏质量流量计测量含气液体流量的准确度提供参考。

Research on Key Technology of Coriolis Mass Flowmeter for Measuring Flow Rate of Gas Containing Liquid

Flow measurement of gas-containing liquids is a measurement problem faced by Coriolis mass flowmeters. Higher requirements are imposed on the drive technology and signal processing technology of Coriolis mass flowmeters. To this end, from the three core technologies of driving, signal processing and error correction, the Coriolis mass flowmeter is used to measure the flow of gas-containing liquids, and the difficulties of driving, signal processing and error correction techniques under the flow of gas-containing liquids are analyzed. The best driving technology, signal processing technology and error correction technology for gas-containing liquid flow are summarized for the difficulties. Analysis of the gas-containing liquid flow rate The reason for the large original measurement error of the Coriolis mass flowmeter and the measurement accuracy corrected by the correction method still cannot achieve the single-phase flow measurement accuracy of 0.1. In order to improve the accuracy of the Coriolis mass flowmeter to measure the flow rate of gas-containing liquids.