Vaporization bubble test apparatus with adjustable pressure and adjustable temperature

Abstract

The invention relates to a vaporization bubble test apparatus with adjustable pressure and an adjustable temperature and belongs to the cavitation dynamics field. An upper portion of a test tank is provided with seven through holes. An infrared light transmission beam passes through one end of the through hole on a central axis and is put in the test tank and the other end is connected to a high speed heat imaging camera. Two electrodes pass through the through holes of two sides of the central axis and are suspended and fixed in the test tank. Pressure and temperature sensors pass through the through holes and are suspended and fixed in the test tank. A liquid conveying pipe valve is connected into the test tank through a pipeline. A gas interface valve is connected into the test tank through the pipeline. An electric heating pipe is suspended in the test tank. The test tank is put in a vacuum tank and is sealed through a flange plate. Side walls of the test tank and the vacuum tank are provided with visual observation windows. An axis of the high speed camera is superposed with an axis of the visual observation windows. The apparatus possesses good adjustability and is safe and reliable. And synchronization acquisition of a vaporization bubble form, a temperature field, pressure and temperature data of a liquid under different pressure and temperature conditions at a normal temperature and at a low temperature can be realized.

Description

technical field [0001] The invention relates to a liquid vaporization process test device, in particular to a vaporization bubble test device with adjustable pressure and temperature. It belongs to the category of fluid mechanics and heat transfer, and the field of cavitation dynamics. Background technique [0002] When the internal partial pressure of a liquid at a certain temperature decreases to the saturated vapor pressure of the liquid, or when the local temperature inside a liquid at a certain pressure rises to the boiling point of the liquid, vaporization will occur, and the gas dissolved in the liquid will also be precipitated. When the pressure around the bubble increases or the temperature decreases, the steam in the bubble recondenses and the bubble collapses. The generation, development, and collapse of the bubbles inside the liquid, as well as a series of physical and chemical changes caused by them, are the evolution process of vaporization bubbles. [0003] ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a vaporization bubble test device with adjustable pressure and temperature in order to solve the problem that the existing technology cannot meet the actual needs

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