Gas-liquid two-phase flow monitoring device, system and method

Abstract

The invention discloses a gas-liquid two-phase flow monitoring device, system and method. The gas-liquid two-phase flow monitoring device comprises a main control module, an excitation module, a silkscreen sensor and a receiving module. The silk screen sensor is electrically connected with the excitation module and the receiving module respectively; the excitation module comprises a polarity conversion circuit, a gating circuit and an amplifying circuit; the polarity conversion circuit and the gating circuit are electrically connected with the main control module respectively; the gating circuit is also electrically connected with the polarity conversion circuit and the amplifying circuit respectively; the receiving module comprises a transimpedance amplification circuit, a first digitalpotentiometer circuit, a voltage amplification circuit, a second digital potentiometer circuit and a signal acquisition circuit; the first digital potentiometer circuit is electrically connected withthe transimpedance amplification circuit and the main control module respectively; the voltage amplification circuit is electrically connected with the transimpedance amplification circuit; the seconddigital potentiometer circuit is electrically connected with the voltage amplification circuit and the main control module respectively; and the signal acquisition circuit is electrically connected with the voltage amplification circuit and the main control module respectively. According to the invention, rapid and accurate measurement of gas-liquid two-phase flow can be realized.

Description

technical field [0001] The invention belongs to the technical field of gas-liquid two-phase flow monitoring, and in particular relates to a gas-liquid two-phase flow monitoring device, system and method. Background technique [0002] The measurement of gas-liquid two-phase flow velocity, flow rate, flow pattern, pressure and phase holdup can generally be summarized into the following three categories: [0003] ① Direct measurement technology [0004] Direct measurement technology is mainly used to measure specific two-phase flow parameters, including flow pattern, flow velocity, gas holdup, etc. Among them, in the measurement of gas fraction, the traditional method is to use the quick-closing valve method, which will seriously disturb the flow field, and requires high threshold control. With the continuous development of scientific and technological progress, more and more new measurement methods are applied to the flow parameter measurement of gas-liquid two-phase flow, s...

AI Technical Summary

Problems solved by technology

This method can only be used for measurements in transparent pipes. In addition, the amount of image information collected by high-speed cameras is too much, and image analysis and processing are relatively difficult.

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