Device for quantitatively detecting interphase applied force of gas-liquid two-phase flow

Abstract

The invention discloses a device for quantitatively detecting the interphase applied force of gas-liquid two-phase flow. The device comprises a tubular capacitive sensor, an impedance tester, a data acquisition unit and a data processor, wherein a main body of the tubular capacitive sensor is an insulating tube; an outer electrode is coated outside the middle part of the main body and is connected with the data acquisition unit and the data processor through the impedance tester; one side of the main body is symmetrically provided with four pressure-measuring holes which are vertical to the axis of the main body; an outer port of each pressure-measuring hole is connected with a differential pressure transmitter; and the differential pressure transmitter is connected with the data acquisition unit and the data processor through a signal output end. The device provides technical support for measuring the interphase applied force of the gas-liquid two-phase flow on line, and provides valuable reference data for unveiling the gas-liquid two-phase flow characteristic and flow pattern evolution.

Description

[0001] Field [0002] The invention relates to a physical measuring device, in particular to a quantitative measuring device for detecting the interphase force of gas-liquid two-phase flow. Background technique [0003] Due to the complex flow pattern of gas-liquid two-phase flow, the detection method of two-phase flow flow data has poor stability and low accuracy. At present, various methods for gas-liquid two-phase flow detection are in the process of continuous exploration and improvement. The interphase force of gas-liquid two-phase flow is the driving force for the change of gas-liquid two-phase section characteristics and the evolution of flow pattern, so it has attracted more and more attention in the research of gas-liquid two-phase flow detection. At present, there is no detection device specially for the interphase force of gas-liquid two-phase flow. Due to the lack of direct and effective means to measure the magnitude of the interphase force, the magnitude of the...

AI Technical Summary

Problems solved by technology

However, the pressure drop information along the flow direction measured by traditional pressure testing methods is usually a combination of interphase force, frictional pressure drop, and acceleration pressure drop coupling, so it is difficult to accurately reflect the relevant information on the interphase force of gas-liquid two-phase flow

Therefore, in the existing gas-liquid two-phase flow detection technology research, the interphase force of gas-liquid two-phase flow is usually ignored or only a simple qualitative analysis is carried out.

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