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Test device for studying cavitation heat transfer characteristics

A test device and technology for heat transfer characteristics, applied in the field of test devices for studying cavitation heat transfer characteristics, can solve problems such as being unable to meet actual needs, and achieve the effect of simple structure and diverse functions

Active Publication Date: 2016-12-07
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a test device for studying cavitation heat transfer characteristics in order to solve the problem that the existing technology cannot meet the actual needs

Method used

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  • Test device for studying cavitation heat transfer characteristics
  • Test device for studying cavitation heat transfer characteristics

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Experimental program
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Embodiment 1

[0038] Such as figure 1 As shown, a test device for studying cavitation heat transfer characteristics includes a vacuum tank part, a test tank part, auxiliary equipment parts, and a data acquisition system.

[0039] Such as figure 1 and figure 2 As shown, the vacuum tank part is used to provide a vacuum environment; including vacuum tank 1, vacuum interface 2, vacuum tank flange 3, first observation window 4, first flange 5, second flange 6, connection relationship : the vacuum tank 1 is a cylindrical tank with an open top, the diameter of the central through hole of the second flange 6 is the same as the outer diameter of the upper edge of the vacuum tank 1, and the upper edge of the vacuum tank 1 is the same as the second flange 6 The upper surface of the vacuum tank 1 is flush and fixed by welding; the side wall of the middle part of the vacuum tank 1 is provided with four circular through holes at equal intervals along the circumferential direction, and the size of the ...

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Abstract

The present invention relates to a test device for studying cavitation heat transfer characteristics, and belongs to the field of experimental fluid mechanics. The cavitation test tube is provided with four through holes, and pressure and temperature sensors are suspended in the cavitation test tube through the through holes. A liquid delivery tube valve is communicated with the cavitation test tube through a pipe. A gas interface valve is connected with the cavitation test tube through the pipe. A test tank is provided with four through holes above, the pressure and the temperature sensor are fixed in the test tank through the through holes, the liquid delivery tube valve is communicated with the test tank through the pipe and the gas interface valve is communicated with the test tank through the pipe. The cavitation test tube is placed in the test tank, the test tank is placed in the vacuum tank and sealed by the flange, and a visual observation window is opened on the sidewalls of the test tank and the vacuum tank sidewall; a high-speed camera is placed outside the visual observation window. The test device is multifunctional, and can realize the simultaneous acquisition and storage of the vaporizing to foaming state, pressure and temperature data of the normal- and low-temperature liquid in different liquid and different temperature conditions.

Description

technical field [0001] The invention relates to a liquid cavitation test device, in particular to a test device for studying cavitation heat transfer characteristics. It belongs to the category of fluid mechanics and heat transfer, and the field of experimental fluid mechanics. Background technique [0002] When the partial pressure inside the liquid at a certain temperature decreases to the saturated vapor pressure of the liquid, the liquid will undergo a phase change, and the gas dissolved in the liquid will also precipitate out to form bubbles together. When the pressure around the bubble increases, the bubble inside The steam recondenses and the bubbles collapse. The generation, development, and collapse of bubbles inside the liquid, as well as the resulting series of physical and chemical changes, are called cavitation. Cavitation widely exists in engineering fields such as fluid machinery, heat and mass transfer, energy and aerospace. For example, cavitation is a ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/12G01M10/00
CPCG01M10/00G01N25/12
Inventor 黄彪陈泰然王国玉张敏弟刘影高德明
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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