Two-phase flow interface parameter distribution characteristic experiment device under swinging condition

Abstract

The invention aims at providing a two-phase flow interface parameter distribution characteristic experiment device under swinging condition, which comprises a water storage box, a mixing chamber, an experiment section, an air-water separation device, an air compressor, an air storage tank, a swing table, photoelectric converter and a light source, wherein the mixing chamber and the steam-water separation device are respectively installed at both ends of the experiment section, the water storage box is connected with the air-water separation device and the mixing chamber respectively, the air storage tank and the air compressor are connected in parallel and connected with the mixing chamber, and the mixing chamber is also connected with the swing table; and an optical fiber probe and a pressure sensor are installed on the experiment section, the photoelectric converter faces to the optical fiber probe, and the light source faces to the photoelectric converter. The invention further develops and perfects an experiment device for researching the air-liquid two-phase local parameter distribution and transportation mechanism in a large channel under the steady-state condition, foaming is uniform in the experiment, a stable bubble flow can be obtained, and the outlet pressure of the air-water separation device maintains constant by means of gravity separation.

Description

technical field [0001] The invention relates to a two-phase flow experimental device in the field of thermal hydraulic technology and chemical engineering. Background technique [0002] Gas-liquid two-phase flow is widely used in practical industrial processes, such as chemical reaction engineering, oil and gas transportation and power engineering. With the human demand for energy saving and the emergence of high-performance heat transfer technology in recent years, flow boiling has been paid more and more attention by researchers. At present, the research on the macroscopic pressure drop and flow pattern of gas-liquid two-phase flow has been carried out for many years, but the research on the microscopic phenomena such as the local interface distribution and interface transport process of the two phases is not mature enough. With the proposal and establishment of the two-fluid model, the interface area concentration, as an important parameter, must be obtained by means of ...

AI Technical Summary

Problems solved by technology

This kind of experimental device can only measure the macroscopic pressure drop, flow pattern and average void fraction of two-phase flow, but cannot deeply study the local interface parameters of two-phase flow, and the transport mechanism of gas-liquid interface under rocking conditions is still unknown clear

At the same time, the channel diameter of the experimental section used in this type of experimental device is generally below 40 mm, which cannot simulate the two-phase flow characteristics in large channels.

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