Demountable experimental device for research on behaviors of multi-row bubbles

Abstract

The invention provides a demountable experimental device for the research on behaviors of multi-row bubbles. The demountable experimental device comprises a water tank, at least two air supply units, a pipeline, an organic glass connector replaceable, and at least two pneumatic connectors used for connecting the pipeline and at least two air holes. A protrusion is arranged under the water tank and is provided with a through holes; the through hole is provided with an internal thread. The surface of each organic glass connector is provided with an external thread matching with the internal thread; each organic glass connector is provided with an air hole penetrating from top to bottom; each air hole in the lower end of the organic glass connector is provided with one mounting hole which is provided with an internal thread; the pneumatic connectors are mounted at the mounting holes, each having the internal thread; each air hole is provided with one mounting hole having the internal thread. The demountable experimental device is applicable to simulating the behaviors of multi-row bubbles having determined diameter and hole spacing and is convenient to demount, applicable to many research conditions and well economic.

Description

technical field [0001] The invention relates to an experimental device for gas-liquid two-phase flow and bubble dynamics, in particular to a detachable experimental device for studying the behavior of multi-column bubbles. Background technique [0002] Gas-liquid two-phase flow and bubble behavior widely exist in thermal power devices and chemical machinery, which will affect the flow and heat transfer characteristics of the system. Therefore, it is of great engineering significance to conduct experimental research on the behavior of gas-liquid two-phase flow and bubbles. At present, scholars at home and abroad have conducted a large number of experimental studies on gas-liquid two-phase flow and bubble behavior, but both in terms of gas-liquid two-phase flow and bubble behavior, they mainly focus on single-column bubbles, and research on multi-column bubble behavior There are few experimental devices. Wang Hongyi of Tianjin University used a set of visual bubbling experim...

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Problems solved by technology

Wang Hongyi of Tianjin University used a set of visual bubbling experimental devices placed vertically to simulate the two-phase flow field (Wang Hongyi "Research on image processing method and motion characteristics of bubbles in water"), although it can simulate two-phase flow well Flow field and bubble behavior, but only a single column of bubbles can be generated, and cannot be used for multi-column bubble research

Although the experimental device of E.Camaras of Laboratoire des Sciences du Ge'nie Chimique (E.Camaras. "Influence of coalescence behavior of the liquid and of gas sparging on hydrodynamics and bubble characteristics in a bubble column") can simulate multiple rows of bubbles, But its defect is: (1) the bubble that is used to produce the bubbler that produces bubble in its experimental device produces haphazardly, is not convenient for studying the growth, formation, shape and the interaction between bubbles of multi-column bubble; (2) its produced Bubbles have no definite hole spacing and hole spacing, which is not convenient for studying the interaction between bubbles under different conditions; (3) The cost of replacing the bubbler in the experimental device is high

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