Gas-liquid two-phase flow measurement system

Abstract

The invention discloses a humidity measurement system based on differential pressure and rotational flow phase-splitting capacitance water content sensor. The system comprises a differential pressureflowmeter and a water content sensor fixed on a measurement pipeline, the differential pressure flowmeter and the water content sensor are horizontally arranged, total virtual-high mass flow rate of two-phase flow of the incoming flow is firstly measured through the differential pressure flowmeter, and then the liquid phase content in two-phase flow is measured through the water content sensor, thereby realizing non-separative metering of the two-phase flow rate; the water content sensor is the rotational flow phase-splitting capacitance water content sensor and comprises a rotational flow section and a capacitance measurement section; the rotational flow phase-splitting section comprises a helical blade support rod, more than two helical blades distributed at the periphery of the helicalblade support rod, and an outer pipe wall; the capacitance measurement section comprises a metal inner core and an insulation layer covered at the periphery of the metal inner core and an outer meta pipe wall. The invention relates to a gas-liquid two-phase flow measurement system at the same time. The system is suitable for industrial field measurement and has high measurement precision.

Description

technical field [0001] The invention belongs to the technical field of flow measurement of gas-liquid two-phase flow, and relates to a novel gas-liquid two-phase flow measurement system combined with a device based on a differential pressure method and a device based on a swirl phase separation capacitance water content method. Background technique [0002] Gas-liquid two-phase flow exists widely in various fields of industrial production. With the advancement of science and technology, the use of non-separation technology to measure the flow rate of gas-liquid two-phase flow is gradually accepted. . At present, relatively mature gas-liquid two-phase flow measurement technologies that can be applied in industrial fields mainly include "differential pressure + ray technology", "differential pressure + microwave technology", "dual differential pressure technology" and so on. The present invention aims at the technical difficulties to be solved urgently in this field: first, ...

AI Technical Summary

Problems solved by technology

However, the measurement results are seriously affected by the flow pattern of the two-phase flow, and the response of the sensor still strongly depends on the spatial distribution of each phase medium, which brings great difficulties to the measurement of phase holdup and is difficult for industrial application.

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