Gas-liquid two-phase accurate flow regulation and control device and method

Abstract

The invention discloses a gas-liquid two-phase accurate flow regulation and control device and method. A liquid flow measurement mechanism is mounted on a liquid pipeline, a liquid pipeline flange is mounted at the inlet end of the liquid pipeline, a gas-liquid mixing chamber outlet flange is mounted at the outlet end of the liquid pipeline, a gas pipeline flange is mounted at the inlet end of a gas pipeline, the outlet end of the gas pipeline is connected to the middle of the liquid pipeline, and a gas flow measurement mechanism is mounted on the gas pipeline. After gas and liquid enter a gas-liquid mixing chamber, the pressures of the gas and the liquid are measured before gas-liquid mixing and enabled to be equal, the total flow of the gas and the liquid serves as the flow after mixing, and the flows of the gas and the liquid are adjusted through a liquid flow adjustment valve and a gas flow adjustment valve. The gas-liquid two-phase accurate flow regulation and control device can accurately adjust the liquid required to be mixed, is convenient to maintain, and can uniformly mix the gas with the liquid and accurately adjust and control the flow of the liquid after mixing and the gas-liquid volume ratio, so that the required mixed liquid is obtained, and the reliability of a gas-liquid two-phase experiment is improved.

Description

technical field [0001] The invention relates to the technical field of liquid conveying power equipment, in particular to a gas-liquid two-phase flow precise control device and control method. Background technique [0002] As the core equipment of aerospace thermal control fluid circuit system, centrifugal pump provides circulation driving force for the work of fluid circuit. However, in practical applications, many media contain a gas-liquid two-phase mixture, and the two-phase flow condition of the centrifugal pump will affect the performance of the centrifugal pump, bringing a series of hazards to the normal operation and service life of the pump. There is gas-liquid mixed transportation in the pipelines used in actual engineering applications. In order to ensure the normal operation of the mixed transportation pipelines, a gas-liquid mixing device must be installed at the pump inlet to make the gas-liquid flow as uniform as possible. There are many gas-liquid two-phase ...

AI Technical Summary

Problems solved by technology

In the gas-liquid two-phase flow experiment of the centrifugal pump, due to the characteristics of the flowmeter, it is difficult to accurately measure the flow rate of the mixed fluid. Most of them are the flow rate of the liquid measured before mixing, which affects the reliability of the gas-liquid two-phase experiment.

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