Gas-liquid phase flow measurement device

Abstract

The invention discloses a gas-liquid phase flow measurement device, comprising a medium circulation tube, a data collection unit and a data processor. A flow sensor and a capacitance sensor are serially connected in the medium circulation tube. A differential pressure transmitter is connected with the flow sensor by a pressure measuring hole, and synchronously connected with the data collection unit and the data processor by a signal output end; an impedance tester and a microwave emission tester are connected with the capacitance sensor in parallel; the impedance tester and the microwave emission tester are connected with the data collection unit and the data processor by signal output ends. The gas-liquid phase flow measurement device can measure the flow of the gas-liquid phase flow and the flow phase content synchronously without separating the gas-liquid phase flow, so that the flow of the gas-liquid phase flow and the flow phase content can be accurately measured in a simple and convenient manner.

Description

technical field [0001] The invention relates to a physical measuring device, in particular to a measuring device for detecting gas-liquid two-phase flow. Background technique [0002] The phenomenon of gas-liquid two-phase flow exists widely in nature and industrial processes. Accurate measurement of flow parameters of gas-liquid phase flow is of great significance both in experimental research and in industrial production. Due to the complexity of gas-liquid flow patterns, people have done a lot of research work in this area over the years, and many measurement methods have also been proposed. At present, the flow measurement methods of gas-liquid phase flow are roughly divided into two types, namely the total flow measurement method and the phase holdup continuous on-line detection method. Among them, the total flow measurement method is mostly improved for the orifice plate, Venturi tube, and inner cone flowmeter, in order to achieve throttling measurement by changing t...

AI Technical Summary

Problems solved by technology

The problem of this method is that the pressure loss of the flowmeter is large, the throttling piece interferes greatly with the gas-liquid two-phase flow, the differential pressure signal fluctuates greatly, and the stability is poor, which leads to the repeatability of the gas-liquid two-phase flow measurement model. Poor, limited scope of application; phase holdup continuous on-line detection methods include ray method, dielectric method

However, a large number of studies have shown that the capacitive sensor used for multiphase flow measurement is easily affected by the flow pattern of the fluid, so the stability and repeatability of the detection data are poor.

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